针对高陡土质填土路基边坡和供水箱涵的联合稳定性，首先要保证供水涵的稳定，再控制路基变形，然而单一的边坡加固方法很难满足工程实际。结合工程实例，通过有限差分程序，分别得到未加固、地下连续墙加固和地下连续墙加预应力锚杆联合加固的位移和塑性区分布，计算结果表明：经过连续墙和预应力锚杆联合加固后路基边坡的位移显著降低，没有出现塑性区，该联合加固技术能为复杂路基边坡的理论研究、设计和施工提供借鉴。%Aiming at the unsatisfied effect of slope strengthening, considering the combined stability of soil-steep slope and culvert for high roadbed in engineering, in which the displacement and stability on culvert shall be insured firstly, then the occurrence on reducing displacement is implemented. The engineering instance of a roadbed slope is analyzed with the numerical calculation to obtain contour charts for displacement and plastic state, applying no reinforcement, diaphragm walls and pre-stressed anchors-diaphragm walls, respectively. The results show the displacement is significantly reduced with combined reinforcement than single reinforcing method.
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