陇东黄土地区刚性地下连续墙桥梁基础水平承载力特性研究

刚性闭合地下连续墙基础墙身埋深比较小，破坏形式表现为滑动或转动破坏。水平承载力由靠近测斜管的墙内侧的主动土压力和远离测斜管的墙背侧的被动土压力组成。在水平荷载作用下地下连续墙对周围土体的挤压作用沿深度方向逐渐减小，水平方向挤压影响呈圆形状扩散，在墙角处地面土隆起较大。

Research on Horizontal Bearing Capacity of Rigid Diaphragm Wall as Bridge Foundation in Loess Area in Eastern Gansu

Rigid closed diaphragm wall foundation has low burial depth with the failure mode represented as sliding or rotational failure. The horizontal bearing capacity is composed of active earth pressure at inner side of the wall close to inclinometer and passive earth pressure at back side of the wall far away from inclinometer. Under action of horizontal load, the squeezing action of diaphragm wall against the soil mass around is reduced gradually along the depth direction and spread in a circle along the horizontal direction; and the surface soil at the corner swells to a greater extent.