基坑降水之封井数量计算方法
alculation the Amount of Shut-in Wells in Foundation Pit Dewatering
基坑降水时当基坑底板施工完成后，便可以采取封井措施。但封井数量需要进行抗浮稳定验算，本文针对广泛应用的三种基础型式：筏形基础、无抗拔桩的桩筏基础和有抗拔桩的桩筏基础，提出一个统一适用的封井数量计算公式，对已经成功应用该公式的三个工程进行举例，阐述公式具体计算步骤，并证明该封井计算公式的正确性。对后浇带的抗浮效果和时效性作了阐述。
Some of dewatering wells can be shutted after the foundation plate was constructed. While the amount of the shut-in wells should be calculated from anti-buoyancy checking. A formula for the amount of shut-in wells is proposed in this paper. The formula is suitable for raft foundation, piled raft foundation and uplift-piled raft foundation. The method of application was explained through three typical foundation engineering. The formula is proved to be right rhrough these engineering cases. The anti-floating effect and timeliness was illustrated.
杨建民、李嘉
水利工程基础科学水利工程施工水工结构
基坑降水封井数量抗浮力上浮力
foundation pit dewateringshut-in wellsanti-buoyancybuoyancy
杨建民,李嘉.基坑降水之封井数量计算方法[EB/OL].(2013-02-28)[2025-08-02].http://www.paper.edu.cn/releasepaper/content/201302-509.点此复制
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