岩层的侧向容许应力[σ]_H及地基系数K_H是抗滑桩设计中两个重要的参数。当外荷及截面尺寸为已知时,桩埋入滑面下的深度决定于[o]_H及K_H的取值。目前因受实验条件的限制,地基系数K_H值常参照“铁路工程设计技术手册《路基》第四篇”表11—11及表11—12选用。其表列数值变化幅度较大,特别是当岩层极限强度及构造情况与表中不符时,K_H的取值就带有较大的 The lateral allowable stress [σ] _H of the rock formation and the foundation coefficient K_H are two important parameters in anti-slide pile design. When the external load and the cross-sectional size are known, the depth of the pile under the sliding surface is determined by the values ​​of [o] _H and K_H. At present due to the experimental conditions, foundation factor K_H value often refer to “Railway Engineering Design Manual” subgrade “fourth” Table 11-11 and Table 11-12 selection. The table column values ​​vary greatly, especially when the ultimate strength and structure of the rock formation and the table does not match, K_H value with a larger