深基坑降水-回灌系统的最优化设计与应用

根据镜像与叠加原理推导出承压完整降 灌井群耦合作用下的水位线方程.在此基础上，提出以基坑及周边环境容许变形为主要约束条件的深基坑降水 回灌系统最优化设计方法，并结合某地铁车站深基坑工程，阐述了优化降水、回灌井点数量及其布置位置的求解过程和方法.结果表明，所建优化设计方法不仅能够保证基坑周围建筑物的安全和降水工程的顺利进行，而且可以降低工程造价，对同类工程具有一定参考价值.

Optimization Design and Application of Dewatering-recharge System in Deep Excavation

A water level line equation under the coupling action of complete pumping-recharge confined well group was derived using the mirror image and superposition principle. Besides, based on the water level equation, an optimization design method for the deep foundation pit dewatering-recharge system was proposed, taking the allowable deformation of pit and surrounding environment as the main constraints. Taking the deep pit of a subway station as an example, the mathematical modeling and solving process for optimizing the number and assign position of pumping as well as the recharge well points were described. The results show that optimization design can not only ensure the safety of surrounding environment (nearby buildings etc.) and the normal operation of the dewatering project, but also reduce the project cost, which will be helpful for the same dewatering project.