中文摘要：

针对回灌井回扬抽水引起基坑周围地面沉降问题,开展了双回灌井组合回灌控沉的数值模拟,研究了双回灌井的开启顺序及开启时间差对沉降控制效果的影响,并提出合适的主、副回灌井开启原则,以为工程设计提供参考。

英文摘要：

Ground settlement can be induced by redevelopment of the recharge wells. To avoid this hazard,coupled recharge by twin wells is usually used. In this study,a series of numerical analyses are conducted to investigate the influence of run-time sequence and run-time difference of twin wells on the settlement control effect. The operating method of coupled recharge is proposed in order to provide reference to designers.