基坑支护上的水土压力共同作用问题及建议

基坑支护结构上实测的内力常常远比用经典土力学理论计算的数值小。在计算方法和水土相互作用机理方面对于水土“分算”和“合算”这一有争论的问题进行了分析和讨论，该文探讨了土的微观结构特征及其对工程特性的影响，基于微观层面分析了土中水的存在类型及特征，研究了水土共同作用韵微观机理，给出了粘性土能否传递孔隙水压力的判别公式，指出这是一个有待于深入研究和探讨的课题。

Common Action and Suggestion of Water and Soil Pressures on Pit Supporting

The internal force measured on the pit supporting structure is often far smaller than the value calculated by the classical soil mechanics theory.The article analyzes and discusses this con- tending issue ofseparate calculationandjoint calculationof water and soil in the calculation method and the water soil interaction.The article approaches the microstructure feature of soil and its influence on the engineering characteristic.Based on the micro level,the article analyzes the type and feature of water exis...