非均质体岩土受力指标的空间异常性研究

Heterogeneous Body of Rock and Soil Mechanical Indexes Space Abnormal Research

针对非均质体岩土受力指标的空间异常性难以进行准确分析的问题,提出基于网格单元的非均质岩土受力指标的空间异常性分析方法。在对非均质岩土网格单元的受力特征分析基础上,利用非均质度描述岩土材料中各类矿物材料对岩土受力造成的影响,判断受力中的空间异常性。试验结果显示:均质岩土的受力指标是由非均质岩土构成矿物材料的网格单元力学特征决定的;非均质岩土的受力指标是由网格单元的力学特性和岩土的非均质度这两个因素共同决定的。提出方法能够对非均质体岩土受力指标的空间异常性进行准确分析。

For heterogeneous body of rock and soil mechanical indexes space abnormal is difficult toaccurately analyze the problem, put forward the heterogeneity of rock and soil mechanical indexes basedon grid unit space abnormal analysis method. On heterogeneity based on analysis of characteristics of thestress of the geotechnical grid cell, heterogeneous degree is used to describe the geotechnical materialsin all kinds of mineral materials, the effects on the rock and soil mechanical stress space in theabnormal . Experimental results show that the mechanical index of the homogeneous soil is composed ofheterogeneous rock mineral materials grid cell mechanics characteristics of the decision; Heterogeneousrock and soil mechanical indexes are made from the mechanics characteristics of grid cell and the degreeof heterogeneity of rock and soil of the two common factors. Put forward the method to be able toheterogeneous body of rock and soil mechanical indexes space abnormal for accurate analysis.