Discussion on determining deformation modulus of soil by characteristic value of foundation bearing capacity
At present,the calculation of foundation settlement in China mainly adopts the compression modulus of soil,and then the empirical coefficient is used to modify the calculation results.The error of this method is still large for some hard soil foundations with strong structure,which is mainly due to the influence of sampling disturbance.Therefore,the theoretical connection between deformation modulus and characteristic values of foundation bearing capacity was explored.On the basis of the empirical method for determining the deformation modulus proposed by the author,a method for determining the deformation modulus according to the characteristic value of the foundation bearing capacity was proposed.This method has theoretical basis and can conveniently determine the deformation modulus of soil through the characteristic value of foundation bearing capacity commonly found in geological exploration reports,which can more accurately calculate foundation settlement values.The several experimental cases were calculated using different methods(plate load test method,compression modulus calculation method,standard penetration number method,bearing capacity empirical method and determining deformation modulus according to characteristic value of foundation bearing capacity method),and the feasibility of method for determining the deformation modulus according to the characteristic value of the foundation bearing capacity was preliminarily verified through the comparison of results from different methods.
deformation modulus of soilcharacteristic value of foundation bearing capacitypressure plate load testfoundation settlement calculation
NETL
NSTL
万方数据
