抛物线法在单桩竖向承载力确定中的应用  

Application of Parabolic Method in Ascertainment of Vertical Bearing Capacity of Single Pile

作　　者：崔树琴[1] 高盟[2] 

机构地区：[1]铜陵学院土木工程系,安徽铜陵244000 [2]同济大学地下建筑与工程系岩土及地下工程教育部重点实验室,上海200092

出　　处：《水利与建筑工程学报》2008年第1期88-90,共3页Journal of Water Resources and Architectural Engineering

摘　　要：单桩载荷试验的Q-S曲线符合抛物线方程,将最小二乘法运用于该方程建立线性方程组,采用高斯消去法编制C语言程序,求出待定系数a、b、c,得到拟合的抛物线,用抛物线中的顶点求出单桩竖向极限承载力。工程实例表明该方法可行。The Q - S curve of static load test for a single pile is in conformity with the parabolic equation, which is applied to the linear equation with the least square method. The process is written to C programming language with：Gauss elimination, then the undetermined coefficients a, b and c are solved and the fitted parabolic equations are got. As a result, the vertical bearing capacity of the single pile is extracted by the apex of the parabolic curve. The practical cases indicate that the method is reasonable.

关 键 词：土木工程 抛物线 单桩竖向承载力 C语言程序 拟合 

分 类 号：TU473.11[建筑科学—结构工程]