Technical Analysis on the Casing Well Backfi lling of Reinforcement for Small Reservoirs
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摘要: 坝体渗漏是蓄水型水利建筑设施普遍存在的工程隐患，也是不同等级病险水库除险加固工作所要解决的最基本问题。基于此，本文针对此类施工常用的几种方案措施进行比较分析，总结了冲抓套井回填技术对于治理小型水库土坝坝体渗漏现象存在的施工工期短、对原坝体结构破坏小、工程造价低的优势，并借助病险水库除险加固的具体实例，对该措施的工艺特点和操作要求进行了详细阐述。通过本文的工艺解析，可为同类水库坝体防渗除险提供技术参考。Abstract: Abstract: Dam leakage is a common hidden damage of water-storing hydraulic projects, and it is also the most basic problem to be solved in the reinforcement of various types of dangerous reservoirs. Based on a concrete example of removing dangers and strengthening for dangerous reservoirs, in this paper, several technical schemes widely used in anti-seepage and plugging for small reservoirs were comprehensively compared and analyzed. It points out that casing well backfilling technology owns the obvious advantages of short construction period, little damage to the original dam structure and low project cost, and is one of the most effective measures to deal with the water leakage from earth-dams. Through the discussion, it can provide useful technical reference for the reinforcement of other similar reservoirs.
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Key words:
- dam anti-seepage /
- casing well backfi lling /
- small reservoirs /
- engineering design
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