CAJ | 학술논문

锚索抗滑桩的设计计算包括锚索拉力计算和桩体内力计算，而锚索拉力又直接影响桩体内力，因此，锚索拉力计算对桩-锚结构设计十分关键。在常规和修改变形协调条件的基础上，考虑锚索预应力作用在滑动面处桩身产生的位移和转角对第i 排锚索作用点处桩身位移的贡献，除去其他排锚索预应力 Rj0对桩身作用产生的位移，同时考虑锚索拉力增量的水平分量作用对桩体变形的影响，对滑动面处桩身位移、转角以及其他排锚索拉力对某一排锚索作用点处桩身位移的贡献进行优化，建立优化的桩-锚变形协调方程。结合结构力学中的虚功原理和图乘法理论，编写Visual C++计算程序，通过滑坡工程实例对锚索预应力和总拉力进行计算。3种变形协调条件的计算结果表明：优化的变形协调条件不仅能使抗滑桩在预应力施加阶段处于有利的受力和变形状态，而且适用于锚索与水平面成不同角度的情况，弥补了常规和修改变形协调条件的不足。
묘색항활장적설계계산포괄묘색랍력계산화장체내력계산，이묘색랍력우직접영향장체내력，인차，묘색랍력계산대장-묘결구설계십분관건。재상규화수개변형협조조건적기출상，고필묘색예응력작용재활동면처장신산생적위이화전각대제i 배묘색작용점처장신위이적공헌，제거기타배묘색예응력 Rj0대장신작용산생적위이，동시고필묘색랍력증량적수평분량작용대장체변형적영향，대활동면처장신위이、전각이급기타배묘색랍력대모일배묘색작용점처장신위이적공헌진행우화，건립우화적장-묘변형협조방정。결합결구역학중적허공원리화도승법이론，편사Visual C++계산정서，통과활파공정실례대묘색예응력화총랍력진행계산。3충변형협조조건적계산결과표명：우화적변형협조조건불부능사항활장재예응력시가계단처우유리적수력화변형상태，이차괄용우묘색여수평면성불동각도적정황，미보료상규화수개변형협조조건적불족。
Designing and calculating of anti-slide pile with anchor cable include calculation of anchor cable tensile force and pile internal force. Anchor cable tensile force directly affects pile internal force. Therefore, anchor cable tensile force computing is crucial in the design of pile-anchor cable structure. On the base of conventional and modified deformation consistence conditions, optimized deformation consistence equation of pile-anchor cable structure is established, in which the effect of the displacement and rotation of pile at sliding surface due to prestressed force of anchor cable on the pile displacement contribution at the i row anchor cable point is considered, and the pile displacement due to the effect of other rows anchor cable prestress Rj0 is removed. Meanwhile, the influence of the incremental horizontal component of anchor cable tensile force on the deformation of anti-slide pile is considered. The deformation and rotation of pile on sliding surface and the deformation made by anchor cables of other rows to point of a row anchor is optimized. Combined with principle of structural mechanics which are virtual work and diagram multiplication method, a calculation programs by Visual C++was complied to calculate the prestressed force and anchor cable total tensile force through a case study. The results of the three kinds of deformation consistence conditions show that the optimized deformation consistence condition not only makes the anti-slide pile in a good state of stress and deformation in the prestressed stage, but also be suitable for the anchor cable and horizontal plane into different angles. Therefore, the optimized deformation consistence condition makes up the deficiencies of the conventional and modified deformation consistence conditions.