m法计算桩基水平位移的改进

利用已有的试桩资料和岩土工程勘察资料,采用最小二乘法对实测地基系数进行了线性拟合,得出地基比例系数的取值,采用“m”法,根据不同土层的埋深,得出桩周土层的地基系数,把得到的地基系数代入采用差分法计算的桩基刚度方程中,编程计算了水平受荷时桩顶位移,结果表明：计算结果和试桩实测结果较接近。

The improvement on m-method of the pile lateral displacement calculation

With the data of test piles and geotechnical engineering survey, the foundation coefficient measured by tests, was fitted by linear test squares approach. Through this way, the subgrade soil ratio coefficient was obtained. The value of foundation coefficient of different soil depth was calculated by m-method. The value was used to the stiffness equation of differential method, calculate displacement of laterally-loaded pile top with computer. The results prove that the calculation results are close to the measured displacement.