井点降水引起的复合地基沉降问题讨论

DISCUSSION ON PROBLEMS ABOUT COMPOSITE FOUNDATION SETTLEMENT CAUSED BY WELL-POINT DEWATERING

在实际工程中,由深基坑开挖而引起的邻近土体水平位移和竖向位移,通常与基坑降水引起的变形耦合在一起,使土体变形更加复杂。按经典稳定流理论来预测降水邻域内复合地基沉降值与实测结果有较明显的差异。实践证明,利用半理论、半统计的方法预测复合地基沉降是一条可行的技术路线。

In the actual engineering, the horizontal and vertical displacements of the adjacent soil structure caused by the excavated deep foundation pit are often coupled with the deformation caused by the foundation pit dewatering. This can make the soil structure more complicated According to the classical constant flow theory, the obvi- ouis difference between the foundation settlement values and actual testing results can be revealed. It can be proven in practice that to predict the composite foundation settlement by applying the semi-the- oretic and semi-statistical method is a feasible technical line.