Application of 3D network modeling rock mass discontinuities to evaluating rock mass quality for dam foundation

WANG Bin; TANG Hui-ming; JIAN Wen-xing; ZHANG Xian-shu

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Application of 3D network modeling rock mass discontinuities to evaluating rock mass quality for dam foundation

更新时间：2026-06-25

- Application of 3D network modeling rock mass discontinuities to evaluating rock mass quality for dam foundation
- Vol. 27, Issue 4, (2006)
- 作者机构：
  
  1. 中国地质大学工程学院,武汉,430074
  2. 贵州省水利水电勘测设计研究院,贵阳,550002
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU45
- Online First：05 November 2013，
  
  Published：2006
- 稿件说明：
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WANG Bin, TANG Hui-ming, JIAN Wen-xing, et al. Application of 3D network modeling rock mass discontinuities to evaluating rock mass quality for dam foundation[J]. 2006, 27(4).
DOI：

WANG Bin, TANG Hui-ming, JIAN Wen-xing, et al. Application of 3D network modeling rock mass discontinuities to evaluating rock mass quality for dam foundation[J]. 2006, 27(4). DOI：

摘要

岩石质量指标RQD是反映工程岩体完整程度的定量参数，广泛用于水利水电、矿山、地下工程、交通工程等岩体稳定性评价，但是传统的RQD定义不能满足实际工程岩体各相异性要求。针对贵州黔中水利枢纽工程拱坝坝基岩体结构面特征，利用Monte-Carlo法在计算机上生成岩体节理三维网络图，建立了模拟计算不同阀值t的岩石质量指标RQDt的计算机模拟方法。该方法能较真实客观地描述岩石质量。

Abstract

Rock quality designation (RQD) is a quantitative parameter that used to reflect the degree of integrality of engineering rock mass. And it has been applied to assess the stability of rock slope in the field of water resources and hydropower engineering

mining

underground engineering

transportation engineering. However

the traditional RQD definition isn’t able to take into account the anisotropy of the engineering rock mass. Aiming at the structural properties of the arch dam of Qianzhong Hydraulic Project in Guizhou Province

and based on the joint network of rock mass simulated by the computer with Monte-Carlo method

a method of deciding RQDt under different threshold values is proposed. Many engineering practices have validated that this method is able to reflect the engineering rock mass quality objectively.

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