邯郸金世纪新城基坑非饱和特性实验研究

我国北方地区大部分的基坑工程涉及范围内用土处于非饱和状态,研究基坑的非饱和特性有着十分重要的经济价值。基质吸力是影响非饱和土抗剪强度的一个非常重要的应力变量,同样它对基坑稳定性也有着极为重要的影响。本文针对河北邯郸金世纪新城深基坑的工程勘察实践,研究了采用自行研制的非饱和土水特性曲线仪,研究了该地区各土层的水力学特性,...

Experiment of Unsaturated Character for JinShiJi Deep Pit in Handan

Research on the unsaturated properties of deep-pit is very important to decrease the construction cost,because that the soils are unsaturated in many case.It is well unknown that soil matric suction is an essential stress variable that influences the shear strength of unsaturated soil and consequently slope stability.In this contribution,the characterization of the unsaturated soil in HanDan JinShiJi deep pit is achieved by using the proposed equipments for SWCC.The SWCCs for every layer are compared.Finally,the unsaturated soil shear strength is investigated by the proposed simplified equation.