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随着城市建设发展和郊区工业化进程加快,工程建设常常面临高填方的问题。为了研究城市郊区建设过程中存在的高填土边坡沉降变形与稳定性问题,结合工程实例并采用有限元理论分析了填筑过程中边坡水平和竖向位移的变化规律。利用强度折减法确定了高填土边坡体内部最可能的滑动面、破坏时产生最大位移位置及稳定性系数。提出了反压护道、强夯法、锚杆格构梁及土工格栅失稳防范对策,对于高填土边坡的设计与施工具有重要的指导意义。
With the development of urban construction and the acceleration of industrialization in the suburbs, construction projects often face the problem of high filling. In order to study the deformation and stability of settlement of high fill slope in the process of urban suburb construction, the variation regularity of horizontal and vertical displacement of slope during filling was analyzed by combining with engineering examples and finite element method. The most likely sliding surface inside the high-fill slope is determined by the strength reduction method, and the maximum displacement position and stability coefficient are generated during the failure. It puts forward some countermeasures to prevent backwashing, dynamic compaction, bolt girder and geogrid instability, which have important guiding significance for the design and construction of high fill slope.