全封闭止水的深基坑降水计算的思考与探讨

Thinking and Discussion of Closed Stop Water of Deep Excavation Dewatering Calculation

采用全封闭止水桩的深基坑降水计算,不应套用常规深基坑降水设计中的涌水量计算公式。若采用全封闭深基坑内部整个土体的给水度计算给水量也无必要。对此作点探讨:①实际全封闭深基坑需要降水的模式;②全封闭深基坑施工降水计算表达式的建立;③应用计算实例;④几点建议。

To adopt totally closed stop water pile foundation pit dewatering calculation,rationally speaking,should not apply mechanically conventional foundation pit dewatering in the design of the section calculation formula.If adopts totally closed deep foundation pit of soil water inside the whole for calculating water also unnecessary.To make some discussion: 1,the actual fully-encased deep foundation pit need of rainfall pattern;2 and enclosed deep foundation pit construction precipitation and the computational ...