Research on anisotropic mechanical characteristics and macro mechanical parameters of long and big deep soft rock of Danba hydropower station at Dadu River

LIU Jie; LUO Shi-wei; LI Jian-lin; CAI Jian; XIAO Lei

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Research on anisotropic mechanical characteristics and macro mechanical parameters of long and big deep soft rock of Danba hydropower station at Dadu River

更新时间：2026-06-25

- Research on anisotropic mechanical characteristics and macro mechanical parameters of long and big deep soft rock of Danba hydropower station at Dadu River
- Vol. 34, Issue 10, (2013)
- 作者机构：
  
  1. 三峡大学三峡库区地质灾害教育部重点实验室,湖北,宜昌,443002
  2. 国电大渡河大岗山水电开发有限公司,四川,雅安,625000
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU451
- Online First：18 October 2013，
  
  Published：2013
- 稿件说明：
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LIU Jie, LUO Shi-wei, LI Jian-lin, et al. Research on anisotropic mechanical characteristics and macro mechanical parameters of long and big deep soft rock of Danba hydropower station at Dadu River[J]. 2013, 34(10).
DOI：

LIU Jie, LUO Shi-wei, LI Jian-lin, et al. Research on anisotropic mechanical characteristics and macro mechanical parameters of long and big deep soft rock of Danba hydropower station at Dadu River[J]. 2013, 34(10). DOI：

摘要

研究了层状岩体各向异性以及宏观力学参数分析方法，提出基于大型岩土分析软件ADINA各向异性材料模块，采用分区分级宏观力学参数模拟分析方法，结合“代表单元体”理论思想，对丹巴水电站二云片岩进行了各向异性模拟和宏观力学参数分析，研究得到丹巴片岩不同片理倾角宏观力学参数以及各向异性特征变化规律。研究结果显示，丹巴二云片岩尺度增加，平行片理向、垂直片理向变形模量、收敛幅度不同步，变化幅度随倾角增大而增大，收敛速率更高，水平向变形模量趋势较平缓，泊松比的变化规律恰好与之相反；随片理面倾角增大，丹巴二云片岩力学参数趋于极限值规律明显。

Abstract

This paper studies the anisotropic mechanical characteristics of the layered rock mass and the analysis method of macro mechanical parameters. It proposes an anisotropic material modules on the basis of ADINA

uses the partition grading macro mechanical parameters simulation method

combining with the theoretical idea of representative unit to make an analysis of anisotropic mechanical simulation and macro mechanical parameters of the two-mica-quartz schist in Danba hydropower station. From the results

the different schistose angle parameters and variation rules of the anisotropic mechanical characteristics of Danba schist are obtained. The results show that with the increasing of two-mica-quartz schist in Danba

the convergence rates of parallel and vertical schistosity deformation modulus and are not synchronized

amplitude increases with the increase of angle

it has a higher convergence rate. The trend of horizontal deformation modulus is more gentle

the variation of Poisson's ratio is just the opposite; with the schistose angle increasing

the mechanical parameters of the two-mica-quartz schist in Danba tend to the limit value obviously.

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