【摘要】 对抗滑桩内力计算之悬臂桩法作了适当改进:建立了滑动面上下统一的坐标系;将桩在滑动面以上部分视为弹性定向铰支的悬臂梁,以使滑动面上下位移符合连续性的实际情况;桩在滑动面以下部分视为"Winkler"弹性地基梁,采用地基系数"m"法计算桩身内力,推导了有限差分计算公式;编制了全桩内力计算程序,可适用于滑坡推力和桩前滑体抗力分布的多种形式以及抗滑桩为刚性桩和弹性桩的情况,同时可得到理想的可视化计算结果.以算例进行了比较验证,并介绍了工程应用实例.与传统方法相比,有效地提高了抗滑桩内力分析效率和计算精度.更多还原

【Abstract】 Some improvements are made on the cantilever-pile method for the calculation of internal forces of anti-sliding piles. A universal coordinate including above and below the sliding surface is erected. The upper parts of piles are considered as to be cantilevers with directionally elastic hinges to keep the continuity of displacement at the sliding surface. The lower parts of piles are regarded as "Winkler" foundation girders. The foundation coefficient "m" method and its finite differential calculation formulae are derived to analyze internal forces of piles. The calculation program of internal forces of a whole pile is designed. In this program, the different distribution forms of the landslide thrust and the reaction force of soil can be assumed and the antisliding piles can be rigid or elastic. Meanwhile, the calculation results can be converted into the reasonable visual figures. The correction of this method is verified by an example. An engineering example is introduced. They both show that this one can improve the calculation efficiency of internal forces of antisliding pile and its precision effectively,compared with the traditional method? 更多还原