深基坑工程土压力计算方法研究

Calculation Method of Soil Pressure in Deep Foundation Pit Engineering

在工程实践和有关文献的基础上 ,探讨了土压力计算公式及其分布模式的普遍形式及其与支护方式的关系 ,提出了用于确定岩土工程参数的滑裂面调查法。方法从极限平衡的概念出发 ,运用工程类比的思维方式 ,通过调查滑裂面几何参数临界深度z0 和滑裂面倾角θ来反演土体抗剪强度c。

Basing on engineering practice and relative measure material, soil pressure formula and its distribution regularity are put forward.It is suggested that the distribution mode should be chosen by the supporting pattern.The sliding surface investigation method that is used to judge geotechnical engineering mechanical papameters is presented.The new approach can back-analyze soil shear strength numeral c and φ by investigating geometrical characterstics of the sliding surface and with analogy method,basing on limit equilibrium theory,making a profitable try in determining the geotechnical engineering papameters.