非规则排列的井点降水与沉降计算分析

Analysis of irregularly arranged well-point dewatering and settlement

针对北京地铁“复-八”线王府井站西南风道施工过程中的降水问题及由降水引起的沉降计算问题进行讨论。通过自编的程序对“承压-潜水”井的降水过程进行计算,并与3D-Flow的计算结果进行了比较。并计算了由于降水而引起的地面沉降。

The dewatering and calculations of the settlement due to well-point dewatering during constructing the southwest wind tunnels of Beijing ＂Fu-Ba line＂ Wangfujing Subway Station are discussed. The water table fall of ＂confined-unconfined well＂ is calculated by self-developed program, the result of which is compared with that using ＂3D-Flow＂ program. Settlement due to water table fall is also calculated.