桩锚复合土钉基于测斜曲线的主动土压力反演分析

The Back-analysis for the Active Earth Pressure of the Combined Retaining Structure of Anchored-pile and Soil-nailing Based on the Lateral Deformation Curve

针对桩锚与土钉组合支护进行协同工作设计计算中土压力分配的困难,根据基坑工程中常规的桩锚土钉组合支护测斜监测数据,推导了一种能够估算组合支护土压力分配的方法,使深基坑工程能够根据具体测斜变形量估算桩锚土钉组合支护体系的有效发挥水平,使组合支护设计更加趋于合理.

It is the key problem for the combined retaining structure to distribute the active earth pressure to the anchored-pile and the soil nailing reasonably. Based on the lateral deformation curve and data of the combined retaining structure of anchored-pile and the soil nailing, the method could be established and used to calculate the distribution of the active earth pressure structure. With the application of this method in deep foundation pit, the engineer efficiency of the anchored-pile and the soil nailing in combined structure, optimize in the combined could practise the the combined retaining design and take measures to avoid its rupture in excavation engineering.