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根据已有研究：C、(?)的互相关性对边坡整体稳定可靠度指标的影响是显著的,因此在计算边坡稳定失效概率时要充分考虑其互相关性。为了更真实的了解在应用设计验算点法研究Bishop条分边坡的整体稳定时土性参数C、(?)之间的互相关性,本文将土的抗剪强度指标C、(?)看作随初变量,并服从正态分布。在工程中极限状态方程往往很复杂,不易直接代入方程求解,因此本文给出了直接迭代公式,并且结合实例验证了其精度。
According to the existing research, the cross-correlation of C (?) Has significant influence on the overall slope reliability index, so the cross-correlation should be fully considered when calculating the slope failure probability. In order to know more about the cross-correlation between the soil parameters C, (?) Of the Bishop slope when applying the design checkpoint method, the shear strength index C As the initial variable, and obey the normal distribution. The limit state equation in engineering is often complicated and can not be easily substituted into the equation. Therefore, the direct iterative formula is given in this paper, and its accuracy is verified by an example.