东扩区排水河道多排顶管施工引起的地面沉降计算

The calculation of ground settlement induced by multi-rows pipe jacking in the drainage channel engineering at the eastern expansion area

介绍了一种计算多排顶管引起的地面沉降的方法,即考虑先施工顶管对后施工顶管的影响,后施工顶管的沉降曲线不对称,用这种方法计算了东扩区排水河道工程4排顶管施工引起的地面沉降,与工程施工实际监测的沉降基本吻合。

A calculation method of ground settlement induced by multi-row pipe jacking was introduced in this article. In the method, the effects of former pipe jacking were considered so that the settlement curve was not symmetrical. The example about the settlement of four pipes jacking in the drainage channel engineering of the eastern expansion area verified the calculation result keeping consistent with the actually monitoring settle-ment value.