斜坡软弱地基大面积高填方路堤变形机理及破坏模式研究

Research on Deformation Mechanism and Failure Mode of Large-area Highfill Embankment on Slope and Weak Foundation

China Power Construction Road and Bridge Group Eastern Investment Co., Ltd., Jinan, Shandong 250000

摘要: 由于软弱地基的斜坡存在，路堤自重及列车负荷将产生竖向和侧向位移，造成路堤变形或被破坏。为此，本文依托潍烟铁路 DK92+993 ～ DK110+833 段大面积斜坡软弱地基高填方路堤工程，从斜坡软弱地基与路堤应力分析入手，针对斜坡软弱层特性对高填路堤变形及破坏的影响进行模型建立与分析，探究出了厚度、弹性模量和坡度的影响关系，并给出了相应的变形控制方法。
- 斜坡软地基 /
- 高填方路堤 /
- 变形机理 /
- 控制方法
Abstract: Due to the slope of soft foundation, the self weight of embankment and train load will produce vertical and lateral displacement, resulting in embankment deformation or damage. Therefore, based on the large-area slope soft foundation high fill embankment project of dk92 + 993-dk110 + 833 section of Weiyang Yantai Railway,starting with the analysis of slope soft foundation and embankment stress, this paper establishes and analyzes the influence of the characteristics of slope soft layer on the deformation and failure of high fill embankment,and probes into the influence relationship between thickness, elastic modulus and slope, The corresponding deformation control method is given.
- slope soft foundation /
- high fill /
- deformation mechanism /
- stability

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