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讨论了库仑主动土压力系数影响因素:墙背倾角、填土内摩擦角、填土坡角、墙背与填土间的外摩擦角等4个参数的合理取值范围。在参数合理取值范围内,以所取某一参数组合为例,采用正交试验分析法,进行了多因素敏感性分析,得出了相应的库仑主动土压力系数对不同参数的敏感度大小关系和敏感度的变化趋势。据此,进一步提出了针对挡土墙工程在设计、施工、运行管理中的相关建议。
The influencing factors of Coulomb’s active earth pressure coefficient are discussed: the reasonable range of the four parameters of wall back angle, internal friction angle, fill slope angle, external friction angle between wall and fill. In a reasonable range of parameters, take a certain combination of parameters as an example, using orthogonal test analysis method, conducted a multi-factor sensitivity analysis, obtained the corresponding coulomb active earth pressure coefficient of different parameters of the sensitivity Relationship and sensitivity trends. Based on this, further suggestions are put forward for the design, construction and operation management of retaining wall project.