新型桩墙组合结构在高陡边坡支护中的应用研究

桩间挡土墙和桩基托梁衡重式路肩墙是铁路和公路工程中两种常用的边坡支护结构形式，但有些工程受到地形地质条件限制时，仅采用一种支护措施不能满足工程设计要求。以腾俊物流专用线货场右侧高陡膨胀土边坡为例，采用新型桩间挡土墙加桩基托梁衡重式路肩墙的组合结构形式，对膨胀土边坡进行支护。并通过力学分析计算，确定了桩、墙所受土压力和滑坡推力的大小，验证了该组合结构形式的可行性。

Research on Application of New Pile-wall Composite Structure in High and Steep Slope Support

Inter-pile retaining wall and retaining wall on supported beams of pile foundation are two common types of slope support structures in railway and highway engineering. However, in some engineering restricted by topographical and geological conditions, only one kind of supporting measure cannot meet the requirements of engineering design. Taken the high and steep expansive soil slope at the right side of Teng Jun Logistics Dedicated Line, the application of the composite structures of the inter-pile retaining wall and the retaining wall on supported beams of pile foundation is researched The soil pressure and the landslide thrust acting on the pile and wall are calculated by the mechanical analysis, thus verifying the feasibility of the composite structure.