Experimental Investigation on Shear Stiffness Coefficient of Rock Mass Foundation
The shear stiffness coefficient of the foundation,which reflects the constraint strength of the foundation to the superstructure in the horizontal direction,directly affects the temperature constraint stress of the concrete structure poured on the foundation and is one of the key parameters to control the temperature crack of the concrete floor.To improve the value of the shear stiffness coefficient of the foundation in the calculation of temperature constraint stress,the value of the shear stiffness coefficient of the foundation under the condition of the waterproofing layer structure of the rock foundation is calculated based on the field test of the temperature stress monitoring of the bottom plate of the waterproofing layer of the rock foundation.Then,the dynamic characteristics test of three structural conditions—the waterproofing layer,cushion layer and sliding layer—on the rock mass foundation is carried out.The value of the shear stiffness coefficient of the foundation under the conditions of the cushion layer and sliding layer is calculated based on dimensional analysis.
NETL
NSTL
万方数据
维普
