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2021 Vol. 3, No. 3

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Research on Construction Technology of Pavement Roller Compacted Concrete Base
GUO Kena
2021, 3(3): 1-2.
Abstract (509) PDF (1)
Abstract:
With the continuous development of traffi c science and technology, the asphalt pavement structure in China has developed from a single combination of thin layer asphalt and semi-rigid base to a stage where multiple structures coexist. Roller compacted concrete base is widely used in asphalt pavement construction due to its advantages of convenient construction, high strength and strong anti fatigue ability. Based on a comprehensive understanding of RCC overview, combined with specifi c cases, this paper analyzes and discusses the key points of RCC base construction technology,for reference.
Discussion on Application of Dynamic Compaction Method in Highway Subgrade Construction
BI Jianbo
2021, 3(3): 3-5.
Abstract (278) PDF (5)
Abstract:
In the roadbed construction of highway engineering, the early roadbed will be destroyed by subsidence. In order to eff ectively improve the bearing capacity of the foundation, reduce the settlement of the roadbed, ensure the quality of the roadbed engineering, and lay a good foundation for the construction, in the roadbed construction of the highway engineering, usually the dynamic compaction method is used to solve the above problems. Research shows that the dynamic compaction method is simple to operate and has obvious eff ects, and it has been widely used in the construction of roadbed projects. Based on this, this article discusses the actual application of the dynamic compaction method in the construction of highway subgrades, analyzes its technical details, and the problems that should be paid attention to in use, in order to provide valuable references and references for more people in the industry.
Analysis on the Application of CFG Pile in Soft Soil Foundation Treatment of High-speed Railway
ZHANG Pei
2021, 3(3): 6-7.
Abstract (227) PDF (7)
Abstract:
Based on stability requirements, buildings have higher requirements for foundation bearing capacity. At present, my country is vigorously promoting the development of high-speed railways, and soft soil foundation treatment is often a major problem in engineering construction. Based on this, this paper takes a high-speed railway project as the research object, and proposes a CFG pile soft foundation reinforcement plan, with a view to comprehensively improving the quality of the project.
Discussion on the Cause of Disease and Reinforcement Technology of Long Span PC Continuous Rigid Frame Bridge
LIU Guoqiang
2021, 3(3): 8-10.
Abstract (91) PDF (1)
Abstract:
In recent years, Chinese highway construction not only promotes the growth of regional economy, but also provides great convenience for people's travel. However, the highway construction period is long and involves many links, which has certain complexity. Based on this, in this paper combined with a specifi c project, this paper studies and analyzes the causes of disease and reinforcement technology of long-span PC continuous rigid frame bridge, for reference.
Analysis of Deep Foundation Pit Support and Geotechnical Investigation
WU Haigang
2021, 3(3): 11-12.
Abstract (115) PDF (2)
Abstract:
The continuous development of social economy has significantly promoted the development of my country's construction industry. While it has brought opportunities for the development of the construction industry, it has also brought many challenges. With the continuous improvement of people's living standards, people's requirements for buildings are getting higher and higher. In order to further meet people's basic requirements for buildings, it is necessary to start with the infrastructure of construction projects to improve the overall quality of buildings. Among them, the support of deep foundation pits and geotechnical survey are important links in the construction of building projects, which play a vital role in the quality of buildings.
Analysis on Geotechnical Survey and Construction Processing Technology of Construction Engineering
CHEN Hai
2021, 3(3): 13-15.
Abstract (163) PDF (1)
Abstract:
In addition to the necessary period and time-consuming, engineering construction projects also require a large amount of capital investment. Studies have shown that geotechnical surveys play an important role in the early stage of the project, and the quality of survey work will directly aff ect the design and construction of the engineering structure. Based on this, this article analyzes the construction engineering geotechnical survey and construction processing technology for reference.
Analysis on Hot Issues of Building Electrical and Intelligent Technology
YAN Haiqiang
2021, 3(3): 16-17.
Abstract (173) PDF (6)
Abstract:
As a construction unit, based on the actual situation of enterprise development, ensure the rationality and feasibility of construction design and process plan, prepare for the smooth start of the project. Based on this, this paper analyzes and studies the heat of building electrical technology, and the popularity of intelligent building technology, for reference.
Analysis on Construction Treatment Technology of Expressway High Fill Subgrade
LUO Chongrong
2021, 3(3): 18-20.
Abstract (193) PDF (3)
Abstract:
The work in the fi eld of highway itself is highly comprehensive, and the factors aff ecting the quality of related projects are complex and diverse, in order to fundamentally improve the quality of highway projects, the use of high fill technology is extremely important. The efficient implementation of this technology can reduce the risk problems caused by various natural factors in the construction, and fundamentally reduce the construction risk. Based on this, this paper analyzes the main problems affecting the quality of high fill subgrade, and studies the main ways to improve the quality of high fi ll subgrade, for reference.
Construction Technique of Asymmetric Suspension Casting of Main Girder of Cable-stayed Bridge with Four Cable Faces in Single Tower
YU Haizhou
2021, 3(3): 21-24.
Abstract (134) PDF (5)
Abstract:
The Panhai Bridge is a single-tower, four-cable plane cable-stayed bridge with pylons and beams. In order to ensure the safety of the structure, the main girder is constructed by asymmetric cantilever pouring, and the line shape and stress of the bridge vary greatly. Therefore, it is necessary to adjust the bridge's performance by unbalanced counterweight and externally applied temporary prestressed beams under the premise of ensuring the safety of the bridge structure construction balance. For this reason, this paper proposes an asymmetric cantilever construction technology for the main girder of a four-cable plane cable-stayed bridge with a single tower and no need of counterweight and temporary prestressing. That is, the west side of the main beam full hall bracket is fi rst erected, and the main tower section is poured at the same time, and then the east side sectioned hanging basket cantilever construction is carried out. The engineering example shows that in the case of complex terrain, the use of asymmetrical cantilever construction of the main girder can not only meet the requirements of structural design specifi cations, but also shorten the construction period, reduce the project cost and construction diffi culty, and ensure construction safety.
Analysis on Construction Technology of Laminated Plate in Prefabricated Building Structure
ZHAI Shifeng
2021, 3(3): 25-27.
Abstract (36) PDF (3)
Abstract:
The development of social economy and the advancement of urbanization greatly promote the progress of construction engineering, especially the prefabricated building structure, which can improve the construction effi ciency and meet the requirements of green and energy saving. Based on this, this paper analyzes the advantages, key points and application of the common laminated plate construction technology in the prefabricated building structure, in order to promote the popularization and application of the prefabricated building structure construction technology.
Analysis on the Treatment Technology of Residual Slope Soil, Karst and Unbiased Pressure Tunnel Opening
ZHANG Qiang
2021, 3(3): 28-30.
Abstract (135) PDF (1)
Abstract:
The upward slope at the entrance of the Lianhuashan Tunnel is relatively steep and biased, and the lower layer of the slope is loose accumulation of soil. The geological conditions are complicated. During the construction of the excavation tunnel, it is easy to slip and collapse in case of rain. There are hidden safety hazards in the construction and operation. The lower part of the tunnel foundation is now gray. Rock and karst; reinforcement by bolt grouting, consolidation and reinforcement by anchor cable frame measures, open tunnel backfi lling and double-row anti-slide pile reinforcement measures to eliminate the infl uence of bias, and double-wall tunneling technology to ensure tunnel entry Safety: The operation safety is ensured by extending the open tunnel, using pile foundation reinforcement measures for the base, and adopting open curtain protection nets for the side slope.
Elementary Discussion on Subgrade Treatment Technology of Upper Road in Shallow Buried Section of Parallel High-speed Rail and Metro
ZHANG Xin
2021, 3(3): 31-33.
Abstract (55) PDF (2)
Abstract:
According to the basic principle of subgrade construction and the practical construction experience of the subgrade engineering of the South Rapid ground Auxiliary Road of Qingdao New Airport, the construction technology of the upper subgrade under the condition of high-speed rail and subway parallel shallow burying is put forward. Through engineering practice, it is shown that through reasonable selection of subgrade fi ller, compaction equipment and method, it can effectively avoid the problems of disturbance to existing railway line caused by the construction of upper subgrade under the condition of guaranteeing the quality of subgrade fi lling. This construction technology can provide a reference for the subsequent construction of similar projects.
Comprehensive Analysis of Construction Technology and Control Points of Pipe Gallery
ZHANG Zuoling
2021, 3(3): 34-36.
Abstract (219) PDF (4)
Abstract:
At present, comprehensive pipe gallery construction technology has emerged in many cities and has been widely used. This treatment method can not only save engineering project construction resources from the source, but also avoid the repeated excavation of related pipelines in the same project or subsequent projects. damage. Based on this, this article takes a specifi c engineering project as an example to carry out the construction technology and quality control points of the foundation pit excavation, foundation treatment, waterproof treatment, reinforced concrete pouring, foundation pit backfilling and other issues during the construction of the comprehensive pipe gallery analysis, for reference.
Analysis on the Construction Technology of High Formwork in Building Engineering
ZHAO Bin
2021, 3(3): 37-39.
Abstract (136) PDF (5)
Abstract:
The application of new technology and technology in engineering projects in the fi eld of construction engineering in our country overcomes the limitations of traditional technology and guarantees the quality and effi ciency of the project.Take high mold technology as an example. This technology has been used more and more in engineering projects in our country, and has entered a mature technology research and development and application stage in the continuous development.Based on this, this article focuses on the key points of high-formwork construction technology in construction engineering, which has certain guiding signifi cance for the promotion and application of this technology in the engineering fi eld.
Research on the Electric and Control System of the Laneway-stow-typed Sereo Garage
DU Haoran
2021, 3(3): 40-42.
Abstract (60) PDF (4)
Abstract:
For the core commercial area with an inch of land, the underground three-dimensional garage is a high-quality solution for parking spaces and parking needs without occupying space on the ground. How to reduce the demand for parking space as much as possible while ensuring the normal operation of the system is a problem that plagues the design of the stereo garage system. Based on this, this article introduces a threedimensionalgarage electrical and control system, expounds its design ideas, control principles and functional characteristics. Practice has proved that the system has strong adaptability to vehicle models, low construction cost of electrical system, and high automation of parking equipment, it provides a new idea for the traditional underground mechanical parking system to develop to automation, convenience and high effi ciency
Remote Monitoring System of Hoist Based on IoT Technology
KUANG Haoran
2021, 3(3): 43-45.
Abstract (195) PDF (5)
Abstract:
The traditional hoist adopts contactor type electric control mode, without monitoring and control of the hoist, it is unable to carry out data acquisition and integrated control with other control systems. Based on this, this paper introduces a new type of hoist, and its remote monitoring system is mainly composed of four parts: hoist with multiple groups of sensors, electric control cabinet with MCU as the control core, front and back-end servers and mobile monitoring app. Using sensor technology, network communication technology and building software system, users can query and remote control hoist operation data through the front-end web page. By connecting multiple hoists to the Internet of things, the operation data can be collected and stored at the same time of monitoring and control, and the performance analysis, after-sales optimization, remote maintenance and other functions can be carried out afterwards. The results show that the system can run automatically and complete the detection and control functions. The collected data can be used for statistical analysis to optimize the performance of the hoist.
Application and Development Trend of Welding Robot
LIN Sen
2021, 3(3): 46-48.
Abstract (129) PDF (15)
Abstract:
With the rapid development of robot technology in various industries and the increase of labor costs, replacing human work by machines has become an inevitable trend to promote the rapid development of society. In order to promote the welding robot to realize high quality, high effi ciency and low cost automatic, fl exible and intelligent welding in the welding fi eld, so as to meet the needs of future development. Combined with the cutting-edge technology, this paper reviews the application of welding robot technology in China and abroad and the future development direction of welding robot.
Research on Lean Production of Honing Processing
SUN Dawei
2021, 3(3): 49-50.
Abstract (198) PDF (2)
Abstract:
This article introduces the principle and characteristics of honing processing and the production problems existing in honing processing. These problems will aff ect the delivery of products. Use the guiding ideology of lean production to formulate targeted solutions to stabilize the processing process, improve production effi ciency, and promote the punctuality and timeliness of product output, while reducing waste and enhancing corporate competitiveness.
Transient Analysis of Rail Milling Based on ANSYS Workbench
TAO Tong
2021, 3(3): 51-53.
Abstract (203) PDF (11)
Abstract:
In order to determine the response of elastic fastener under the action of milling load at any time, the transient analysis of rail was carried out by using the fi nite element analysis software ANSYS Workbench module combined with milling theory. According to the actual working conditions, the milling force follows the Fourier series equation to evaluate the milling transient response of the existing layout structure of a large road maintenance machine. In this paper, two aspects are analyzed to verify the milling transient response of the existing layout structure: the same milling helix angle, diff erent running speed transient analysis; transient analysis of the same running speed and diff erent milling helix angle.
Analysis of Remanufacturing Design of Hitachi Shield Machine Fluid System
MA Junjiang
2021, 3(3): 54-59.
Abstract (37) PDF (1)
Abstract:
This article describes the remanufacturing design of the foam system, grouting system, and propulsion system of the shield tunneling machine manufactured by Tianye Tonglian in 2010. The above three systems are the original equipment of the old machine and can be adapted to the new after remanufacturing design. Geological and new segment specifi cations, through the detection, classifi cation, and utilization of old parts, the new purchase cost can be saved to the greatest extent, and the functional requirements can be met. By upgrading the design, the shield machine foam system realizes the function of "single port, single tube, single pump, and single control", which is also the latest design requirement in the industry. In addition, the injection volume of the grouting system after remanufacturing is doubled, and the grouting sealing performance is better. The capability of the propulsion system has been improved, while preventing the risk of "stepping on the seam" of the segment. Through the design of shield machine remanufacturing, energy and cost are fully saved, and at the same time, the working capacity of the original shield machine is improved.
Development and Application of Lever Type Anti Jump Device for European Winch Crane
XU Jiabin
2021, 3(3): 60-62.
Abstract (108) PDF (1)
Abstract:
In view of the problem that the steel wire rope of the hoisting mechanism of the light European double beam winch crane under 50 t is easy to jump, a lever type anti jump device is developed and manufactured. The device can assist the drum rope groove to control the wire rope to be arranged in order and wound on the rope groove to avoid groove skipping. At the same time, it also enables the crane to have the function of rope groove skipping detection, so as to avoid accidents caused by rope groove skipping and bring potential safety hazards to production.
Design of Hydraulic Drive Device of Bucket Wheel Machine
ZHANG Yanyan
2021, 3(3): 63-65.
Abstract (254) PDF (11)
Abstract:
Bucket wheel stacker and reclaimer is widely used in ports, metallurgy, electric power and other fi elds. Bucket wheel is the key component of bucket wheel stacker and reclaimer. Compared with traditional slide valve control and pump pressure control, the direct drive hydraulic control system is more effi cient and energy-saving. Based on this, this article discusses the design of the hydraulic drive device of the bucket wheel machine, and uses the in-line valve block to simplify the structure of the hydraulic system and improve the operating effi ciency of the bucket wheel stacker and reclaimer.
Design of Electric Forklift Work in Strong Nuclear Radiation Environment
ZHU Haifeng
2021, 3(3): 66-68.
Abstract (133) PDF (2)
Abstract:
This paper analyzes the main impact of strong nuclear radiation on forklift, and develops and designs the adaptability of forklift, so that forklift can adapt to the strong radiation environment, carry out normal handling operation in the nuclear radiation environment, and can be used to deal with nuclear emergency accidents.
The Selection of Mechanical Equipment and Economic Management Measures for Road and Bridge Engineering
CUI Runzhu
2021, 3(3): 69-70.
Abstract (166) PDF (4)
Abstract:
In order to solve the problems existing in the mechanical equipment management of road and bridge engineering projects, this paper discusses the important value of scientifi c selection of road and bridge engineering machinery and equipment, analyzes the selection principles of machinery and equipment, and studies the key points of economic management, in order to provide reference for the relevant staff .
Innovation and Development of Construction Technology in Building Engineering in the New Period
DANG Zhonglin
2021, 3(3): 71-73.
Abstract (130) PDF (3)
Abstract:
This article discusses the significance of construction technology innovation in construction engineering, analyzed the main problems existing in construction technology of building engineering, researched the innovation and development strategy of construction technology in the new era, for reference.
Quality Problems and Management Analysis in Construction Management of Road and Bridge Engineering
LIU Mingpan
2021, 3(3): 74-76.
Abstract (172) PDF (3)
Abstract:
This paper discusses the characteristics of road and bridge engineering construction, and the value of quality management in road and bridge engineering construction, this paper analyzes the common quality problems in the construction management of road and bridge engineering, and puts forward the path of quality control in the construction management of road and bridge engineering, for reference.
New Application of Smart Construction Site in Safety Management
LIU Shuoyang
2021, 3(3): 77-79.
Abstract (338) PDF (39)
Abstract:
In order to realize the efficient application of safety management in smart construction sites and promote the rapid transformation of the construction industry,based on the analysis of big data technology,BIM technology,cloud computing technology,Internet of Things technology and other technologies in the safety management application of smart construction sites, Take the smart construction site safety management application of the Zunqin Expressway project as an example, analyze the current status of the project's smart construction site safety management application,provide reasonable and effective safety management suggestions for the construction of smart construction sites,and promote the transformation of smart construction site safety management toward intelligence,informatization,and direction.
Importance and Management Strategy of Highway Construction Technology Management
WANG Genjia
2021, 3(3): 80-82.
Abstract (26) PDF (1)
Abstract:
This paper discusses the importance of highway construction technology management, analyzes the existing problems of highway construction technology management, and puts forward the strategy of highway construction technology management, for reference.
Analysis on Quality Control Measures of Tunnel Waterproof and Drainage Construction
YANG Zhen
2021, 3(3): 83-84.
Abstract (65) PDF (2)
Abstract:
Tunnel waterproof and drainage system is a key guarantee for safe operation, especially in severe cold areas aff ected by freezing and thawing. Once there is water leakage, it will greatly aff ect the quality of tunnel operation and service life. Therefore,careful planning must be carried out before construction, combined with common quality problems. The prevention and control measures to ensure the meticulous construction of each link, the construction process must be strictly controlled to ensure the quality of the entire tunnel's waterproof and drainage system.
Applied Research on Reinforcement Management Planning of Construction Project
YANG Zhihao
2021, 3(3): 85-87.
Abstract (148) PDF (4)
Abstract:
With the continuous improvement of Chinese national living standards and the rapid development of engineering construction technology, reinforced concrete as a structural framework has been widely used in construction engineering, and the essence of steel as a structural framework is particularly important. How to construct reinforced concrete engineering has become the focus of the whole project construction. Some engineering projects due to design defects, weak technical strength of construction enterprises, poor management, blind construction, resulting in steel structure engineering production, installation and other aspects of a series of quality problems, seriously affecting the quality of engineering structure, resulting in adverse social impact. Based on this, this paper mainly discusses the application of steel management plan in construction projects for reference.
Analysis on Measures to Improve the Quality of Gas Meter Measurement and Verifi cation
LIU Lu
2021, 3(3): 88-89.
Abstract (71) PDF (3)
Abstract:
With the continuous acceleration of urbanization, the consumption of gas in my country is gradually increasing. In this process, the number and types of gas meters are also changing. If you want to protect the interests of both the supply and demand sides at the same time, it is necessary to verify the accuracy of the gas meter, and effectively solve the problem of inaccurate gas measurement, so as to truly realize the fairness of the transaction. Based on this, this article analyzes related measures to improve the quality of gas meter measurement verification for reference.
Discussion on the Application of New Techniques in Surveying and Mapping Engineering and Technical Design Ideas
SHI Junwei
2021, 3(3): 90-92.
Abstract (216) PDF (5)
Abstract:
With the continuous innovation and development of topography and cartography engineering technology with the level of science and technology, the application of various new technologies in topography and cartography engineering is becoming more and more comprehensive. The application of new technology has positive signifi cance for improving the accuracy of engineering drawing and engineering measurement. Based on this, this article analyzes the application of new technologies in surveying and mapping engineering for reference.
Analysis on the Application of Sand Filling Method in Highway Subgrade Inspection
WANG Le
2021, 3(3): 93-94.
Abstract (156) PDF (6)
Abstract:
With the rapid development of social economy, Chinese infrastructure is more and more perfect, highway construction has made remarkable achievements. Subgrade is an important part of highway structure, and its bearing capacity directly determines the comfort and safety of driving. Therefore, it is of great significance to do a good job in highway subgrade detection. Sand filling method is the main method to measure the degree of compaction in engineering fi eld, which has the characteristics of simple and rapid operation, and its application in the detection of subgrade compactness has signifi cant eff ect. Based on a comprehensive grasp of the basic principle of sand fi lling method, this paper expounds the application process of sand fi lling method in subgrade detection, and fi nally analyzes and discusses specifi c cases, so as to improve the level of subgrade detection.
Talking about the Detection Technology and Application of the Main Structure of the House Construction Project
WANG Xuefei
2021, 3(3): 95-97.
Abstract (215) PDF (4)
Abstract:
At this stage, the construction industry is developing rapidly, and the quality of housing construction projects reflects the level of development of the construction industry, and at the same time is conducive to promoting the sustainable development of the construction industry. At present, the number of housing construction projects is increasing, and the difficulty of project management is increasing accordingly. Therefore, the quality of construction has become a problem that people pay more attention to. The main structure detection technology can objectively detect the quality of the housing construction project to ensure its stability and safety. This article describes the detection technology and application of the main structure of the housing construction project for reference.
Application of Energy-saving Design in Civil Building Design
PAN Lin
2021, 3(3): 98-100.
Abstract (132) PDF (1)
Abstract:
Since the reform and opening up, my country's social economy has always maintained a rapid development trend. Our people have created huge social wealth with hard work, which has significantly improved our country's comprehensive national strength and the people's living standards. In this context, people also have higher requirements for the living environment, which has promoted the rapid development of civil construction in our country, so the construction industry has become one of the pillars of our national economy. In the new era, my country is paying more and more attention to environmental protection and effective use of resources, and energy conservation and environmental protection have become new requirements and new goals for various industries. Judging from the status quo of civil buildings in my country, they have serious environmental pollution and consume large amounts of resources. Based on this, this paper conducts research from both theoretical and practical aspects. First, it analyzes the concept of energy-saving design, then discusses the principles, infl uencing factors, functions and meanings that energy-saving design in civil buildings should follow, and fi nally puts forward the application of energy-saving design concepts in architectural design eff ect.
Thinking of Sponge City Concept in Municipal Water Supply and Drainage Design
XU Hezheng
2021, 3(3): 101-102.
Abstract (267) PDF (12)
Abstract:
The rapid progress of urbanization is not only promoting social progress, but also destroying the living environment to a large extent. As a modern city management concept, the sponge city concept can play a role in balancing the ecosystem in the process of urban development. In order to achieve the eff ect of greening the city, the construction of the sponge city must be combined with the planning and construction of urban landscape gardens, making full use of the water absorption eff ect of the sponge, absorbing surface water to supplement groundwater, so that it can also play a role in dredging, so as to avoid waterlogging occurred in the city.
Technical Research on Three-dimensional Greening Construction in Landscape Engineering
YE Zhonghui
2021, 3(3): 103-105.
Abstract (130) PDF (9)
Abstract:
With the continuous acceleration of the process of urbanization in my country, in order to create a healthy and livable living environment for people, it is necessary to do a good job in urban landscaping. Based on this, this paper discusses the overview of three-dimensional greening construction, analyzes the relevant technology of three-dimensional greening construction in landscape engineering, and studies the matters needing attention in three-dimensional greening construction, for reference.
On the Management of Fire Fighting Equipment at the Grass Roots Level
CHEN Mingtong
2021, 3(3): 106-108.
Abstract (55) PDF (3)
Abstract:
Over the years, with the great attention of Party committees and governments at all levels, the construction of fi re equipment of Chinese comprehensive fi re rescue team has been signifi cantly improved. In recent years, with the rapid development of Chinese social economy, the level of fi re equipment manufacturing industry has been signifi cantly enhanced, and the number, scale and variety of fi re equipment have increased rapidly, but the management ability of fire equipment is relatively backward. At present, this contradiction is more and more obvious. Based on this, this paper takes the grass-roots fi re equipment management as an example to study the existing problems and related innovation strategies for reference.
Talking about the Safety Supervision of Hoisting Machinery in Building Construction
CUI Xingyuan
2021, 3(3): 109-110.
Abstract (130) PDF (2)
Abstract:
As a large construction equipment in construction site, lifting machinery is widely used in construction site because of its advantages of large construction area and high effi ciency. However, the risk factors of hoisting machinery installation and use are large, which is easy to cause safety accidents, thus causing great economic losses to the construction unit. Based on this, this paper analyzes the related problems of safety supervision of lifting machinery and equipment in the process of construction, and puts forward the strategies of safety supervision of lifting machinery and equipment in construction, for reference.
Experimental Study on Stepless Speed Regulation Control of Sectional Cascade Tunnel Ventilation
FU Changrong
2021, 3(3): 111-113.
Abstract (136) PDF (1)
Abstract:
In order to study the eff ectiveness of cascade ventilation, a 50 m-length tunnel model was made, and the speed control test of zone cascade ventilation was carried out, the results show that the tunnel zone cascade ventilation theory and corresponding principles have good reliability and feasibility; the partitioned cascade method has good ventilation effect, the control system has good operability, and the stepless regulation can achieve the eff ect of high effi ciency and energy saving.
Forecast of Traffi c Volume Based on the Grey Regression Combined Model
LI Daming
2021, 3(3): 114-116.
Abstract (167) PDF (5)
Abstract:
Traffic forecasting and accurate forecasting are central to highway feasibility studies and have important implications for traffic planning and management research. As the number of vehicles increases, transportation issues become more complex. A hot issue that theoretical researchers are concerned about is traffi c forecasting, as traffi c problems become more complex and the number of vehicles continues to grow. In this article, when optimizing a GM (1,1) model using regression analysis and gray model theory, we first combine intelligent calculations. Reasonable weights can be obtained by combining the regression model with the optimized GM (1,1) model. The establishment of a combination prediction model for linear traffi c volume is mainly based on the gray model and the regression model. The actual data testing is mainly done on the Lima highway, and this model can eff ectively improve the accuracy of short-term traffi c forecasts.
Thoughts on the Fire Safety Management of High-rise Buildings in Taizhou
LIANG Yifeng
2021, 3(3): 117-119.
Abstract (199) PDF (3)
Abstract:
In recent years, with the continuous development of social economy, the number of high-rise buildings in Taizhou city is increasing, followed by high-rise building fi re problems are very prominent. Based on this, this paper starts with the status quo of fire safety of high-rise buildings in Taizhou, this paper analyzes the existing fi re safety hazards and their causes, and puts forward corresponding countermeasures.
Research on Fire Safety Evaluation of Smoke Exhaust System Based on AHP and Fuzzy Comprehensive Evaluation Method
QIAO Hui
2021, 3(3): 120-122.
Abstract (196) PDF (5)
Abstract:
This paper establishes a fi re safety evaluation system of smoke extraction system with 16 three-level indexes from fi ve dimensions: smoke control partition, natural smoke extraction system, mechanical smoke extraction system, air supplement system and mechanical smoke extraction starting function. AHP is used to determine the index weight, and fuzzy comprehensive evaluation method is used to evaluate the risk of smoke exhaust system. The membership matrix of fi re safety of the system is obtained. According to the maximum membership principle, the overall fire safety level of the system is determined, which provides effective reference for the actual fi re supervision and inspection and system maintenance detection.
Intelligent Transportation-intelligent Road Perception System for the Future
SHI Lin
2021, 3(3): 123-125.
Abstract (79) PDF (9)
Abstract:
With the rapid development of information technology, under the guidance of national policies, intelligent transportation has become a powerful tool to solve urban traffic problems.In the process of intelligent transportation construction and exploration, preliminary achievements have been made, which greatly promotes the rapid transformation of road construction and management operation and maintenance.Based on this, this paper deeply analyzes the connotation of intelligent transportation in view of the existing problems of intelligent transportation, puts forward the technology framework of intelligent transportation for the future, and strengthens the application scenarios of intelligent road events, so as to provide thinking for promoting the long-term development of intelligent transportation.
Research on the Countermeasures of Building Fire Prevention Supervision and Fire Facilities Confi guration
ZHENG Jiawei
2021, 3(3): 126-128.
Abstract (170) PDF (3)
Abstract:
In the new era, the economy has entered a stage of rapid development, which not only provides more opportunities for the development of the construction industry, but also puts forward higher requirements for the fi re rescue team. Based on this, this paper discusses the signifi cance of strengthening the supervision of building fi re prevention and paying attention to the allocation of fi re-fi ghting facilities, this paper analyzes the deficiencies in the allocation of fire-fighting facilities, and studies the effective countermeasures for the reasonable allocation of fi re-fi ghting facilities.
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