用换算桩荷载影响线法计算高桩刚性承台

换算桩法是一种与精确解法基本相一致的近似计算法。介绍用影响线的概念来确定基桩荷载的最不利位置及荷载组合的基本理论，进行实例计算，并与精确解法的精度进行比较，误差甚小。

The influence lines method of the conversion pile loads is an approximate calculation means which is basically consistent with the exact method. By adopting the influence lines to determine the principle theort of the most unfavorable place and combination of the loads, and carry out calculation of an example, which is compared with the result of exact method, the error is proved to be very small.