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在基坑支护设计中,土压力的计算是基坑支护设计过程中最为重要的环节,而土体的抗剪强度参数又是土压力计算过程中最基本的参数,所以选取合理的抗剪强度参数是深基坑工程设计的关键。鉴于此,以某深基坑工程为例,对该基坑各岩土层的抗剪强度参数分别采用了三种方法(规范法、最小二乘法、MATLAB多元线性)进行数理统计分析和对比,最终优选出各岩土层的最佳的抗剪强度参数。
In the design of foundation pit support, the calculation of earth pressure is the most important link in the design of foundation pit support. And the shear strength parameter of soil is the most basic parameter in the process of earth pressure calculation. Therefore, the reasonable resistance Shear strength parameter is the key to deep foundation pit engineering design. In view of this, taking a deep foundation pit project as an example, three methods (standard method, least square method and MATLAB multiple linear) are respectively used for the statistical analysis and comparison of the shear strength parameters of the rock and soil layers of the foundation pit. Finally, the best shear strength parameters of each rock and soil layer are optimized.