边坡岩体抗剪强度参数的非线性确定方法

›› 2012, Vol. 33 ›› Issue (2): 395-401.

边坡岩体抗剪强度参数的非线性确定方法

魏应乐¹，刘丽云²，戈海玉³

1.安徽水利水电职业技术学院建筑工程系，合肥231603；2.安徽审计职业学院贸易经济系，合肥 230061； 3.皖西学院建筑与土木工程学院，安徽六安 237012

收稿日期:2010-04-24 出版日期:2012-02-10 发布日期:2012-02-14
作者简介:魏应乐，男，1966年生，副教授，主要从事岩土与建筑工程方面的研究工作

Nonlinear method for determining shear strength of slope rock mass

WEI Ying-le¹, LIU Li-yun², GE Hai-yu³

1. Department of Architectural Engineering, Anhui Water Conservancy Technical College, Hefei 231603, China; 2. Department of Trade and Economics, Anhui Audit Vocational College, Hefei 230061, China; 3. School of Architecture and Civil Engineering, West Anhui University, Lu 'an, Anhui 237012, China

Received:2010-04-24 Online:2012-02-10 Published:2012-02-14

摘要/Abstract

摘要： 影响工程岩体抗剪强度参数的因素很复杂，建立定量与定性相结合的多指标综合模型可有效地确定岩体抗剪强度。将多元非线性统计方法引入到岩体抗剪强度指标的研究中，选取了12个影响岩体抗剪强度的定性、定量指标，通过收集到的大量工程数据，分别建立凝聚力和内摩擦角非线性显式方程，决定系数分别为0.992 729，0.999 998。该方法可考虑定量、定性因素的影响，经现场实测数据验证，该模型具有较高的计算精度。运算过程简单，可方便工程现场使用，具有较高的工程实用价值。

关键词: 边坡工程, 岩体抗剪强度, 多元非线性统计, 边坡稳定性

Abstract: Factors affected the rock mass shear strength parameters are complex with uncertainties. A comprehensive model with multiple index is established combined with quantitative and qualitative indicators. It can effectively determine the shear strength of rock. The multivariate nonlinear statistical method is introduced to study the rock mass shear strength parameters. Twelve qualitative and quantitative indicators are selected, based on the large number of projects through the collection of data, nonlinear explicit equations of cohesion, and friction angle for rock mass shear strength are established; their determining coefficients are 0.992 729, 0.999 998, respectively. This model not only considers quantitative factors, but also considers qualitative factors. It is verified by field data. Results show that the models have high accuracy. It is easy to solve the rock mass shear strength parameters with high practical value, and it has high practical value for projects.

Key words: slope engineering, rock mass shear strength, multiple nonlinear statistics, slope stability

中图分类号:

TU 457

魏应乐，刘丽云，戈海玉. 边坡岩体抗剪强度参数的非线性确定方法[J]. , 2012, 33(2): 395-401.

WEI Ying-le , LIU Li-yun , GE Hai-yu. Nonlinear method for determining shear strength of slope rock mass[J]. , 2012, 33(2): 395-401.

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