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Abrupt Gush Problem of Foundation Pit Considering the Influence of Shear Strength of Soil

机译：考虑土壤剪切强度影响的基坑突然涌出

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摘要

In traditional calculation method, the critical thick of water-resisting layer at foundation pit can be got by comparing the gravity of water-resisting layer and water pressure of artesian aquifer, which had not considered the influence of shear strength of soil. The result of traditional calculation method is conservative to reality. Based on force equilibrium analysis of water-resisting layer, equations for calculating safety factor of abrupt gush and critical thick of water-resisting layer is suggested in this article, which considered the influence of shear strength of soil. Some cases have been studied with those new equations. It had been found that the result of those new equations is coincident with realities. In order to ensure the security of foundation pit, it is advised that foundation pit can be adjudged safety only both the safety factor of abrupt gush and critical thick of water-resisting layer satisfied requirements.
机译：在传统的计算方法中，通过比较抗水层和艺术含水层的水压的重力，可以获得基础坑的临界厚度的临界厚度，这不考虑土壤剪切强度的影响。传统计算方法的结果是保守的现实。基于防水层的力平衡分析，在本文中提出了用于计算突然涌出和临界厚度的防水层的安全系数的方程，这考虑了土壤剪切强度的影响。已经使用这些新方程进行了一些病例。已经发现，这些新方程的结果与现实巧合。为了确保基础坑的安全性，建议基础坑可以判决安全性突然涌出的安全系数和临界厚度的耐水层满意要求。

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