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滑带土强度参数是滑坡稳定性分析和防治工程设计的重要参数,当前滑带土强度参数取值主要是室内试验法和反演分析法。取样不当和试验误差会造成试验数据失真。在数据失真或缺少资料时,利用斜坡蠕变状态反演的参数较为可靠。以四川省南江县A滑坡为例反演滑带土强度参数,提出并探讨了反演参数的4种取值方式,验证并对比了4种取值结果,得出根据斜坡各区域蠕变状态,以地表裂隙发育程度赋权重的方法获取反演参数并适当降低更为可靠的结论。
Landslide soil strength parameters are important parameters for landslide stability analysis and control engineering design. The current strength parameters of landslide soil are mainly indoor test method and back analysis method. Improper sampling and experimental errors can distort the test data. In the data distortion or lack of information, the use of slope creep state inversion parameters more reliable. Taking the A landslide in Nanjiang County, Sichuan Province as an example, the strength parameters of the sliding zone soil are inverted and four numerical methods of inversion parameters are proposed and discussed. The results of the four kinds of numerical results are validated and compared. , Taking the weight of surface fissure development as the weight method to obtain the inversion parameters and appropriately reduce the more reliable conclusions.