陈国强  许建平
    (冶金部建筑研究总院地基所  北京 100088)

[提要]  深基坑支护工程中对于水的处理是非常关键的一个技术问题。对深基坑设计时水压力的计算和基坑降排水、止水设计等问题进行了讨论，并提出了水压力修正系数( Kw)的经验公式，介绍了壁后注浆法、桩间摆喷止水帷幕法等止水措施。
[关键词]  水压力  修正系数  壁后注浆法  桩间摆喷  止水帷幕

Handling of undcrground watcr is a kcy tcchnical problcm in dccp foundation pit supporting cnginccring. This papcr discusscs the calculation of watcr prcssure and dcsigns of watcr lcvcl lowcring, draining off watcr and kccping off watcr hcavy curtain, thcn givcs an cxpcricnccd formula for calculation of watcr prcssure rcviscd cocfficicnt(Kw), introduccs scparating water mcasurcs, such as the mcthod of injcction concrcte liquid bchind supporting wall and kccping off watcr hcavy curtain by swing spraying bctwccn pilcs.
Keywords: rcviscd cocfficicnt; watcr prcssurc; injcction concrcte liquid; supporting wall mcthod; watcr hcavy curtain; swing spraying