双因素分析法在断层对边坡稳定性影响分析中的应用

断层易造成露天矿边坡失稳,给矿山企业安全生产带来了极大的安全隐患。由于断层构造复杂,形态多变,至今尚未形成一套完整的科学研究体系。以云南省某露天矿山的东帮边坡工程为例,选取断层宽度和断层倾角2个主要因素,运用GeoStudio计算2个不同因素组合水平下的边坡安全系数,将计算结果导入数值分析软件SPSS进行双因素方差数值分析,研究2个因素对边坡稳定性的影响,结果表明,断层倾角和断层宽度是边坡稳定性研究中至关重要的2个因素,断层倾角对边坡稳定性的影响要远大于断层宽度。

Application of two-way analysis of variance in the study of the influence of faults on slope stability

The fault is likely to cause the failure of slope stability in open pit mine,which results in a great hidden danger to the safe production of mining enterprises.However,due to the complex structure and diversified patterns of faults,a complete scientific research system has not been established yet.Taking the engineering practice of eastern slope of an open pit mine in Yunnan province as an example,the width and dip angle of fault were selected as the factors,as a result,the slope safety coefficient at different combination levels of the two factors were calculated by using GeoStudio.The results were introduced into the numerical analysis with software SPSS for studying the influence of two factors on slope stability.It makes clear that the dip angle and the width of fault are two critical factors in the study of slope stability,and the influence of dip angle on slope stability is much greater than that of the width of fault.