东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2013, Vol. 34 ›› Issue (3): 434-438.DOI: -

• 资源与土木工程 • 上一篇    下一篇

变角度空间的岩块滑落试验及结构面参数反演分析

王述红，汪江，饶文杰   

  1. (东北大学资源与土木工程学院，辽宁沈阳110819)
  • 收稿日期:2012-09-07 修回日期:2012-09-07 出版日期:2013-03-15 发布日期:2013-01-26
  • 通讯作者: 王述红
  • 作者简介:王述红(1969-)，男，江苏泰州人，东北大学教授，博士.
  • 基金资助:
    国家自然科学基金资助项目(51074042，51179031)；辽宁省自然科学基金资助项目(20092011)；深部岩土力学与地下工程国家重点实验室开放课题(SKLGDUEK1009)；地质灾害防治与地质环境保护国家重点实验室开放课题(SKLGP2012K009).

Block Slide Model Test on Variable Angle Space and Back Analysis of Structural Parameters

WANG Shuhong， WANG Jiang， RAO Wenjie   

  1. School of Resources ＆ Civil Engineering， Northeastern University， Shenyang 110819， China.
  • Received:2012-09-07 Revised:2012-09-07 Online:2013-03-15 Published:2013-01-26
  • Contact: WANG Shuhong
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摘要： 本试验以东北大学自行研制的变角度空间块体滑落试验平台为基础，模拟不同性质岩块的滑落过程.通过采集岩块滑落的二次角度数据，应用极限平衡法和向量法对单面滑动、双面滑动及空间的滑落角度作了理论分析.根据已破裂的结构面，运用摩尔库伦理论对其力学参数进行了反分析.试验结果表明单面滑动与双面滑动的分界角度在40°至50°之间，单面滑动角度增幅较小；块体与结构面间的黏聚力随砂浆等级的提高而增大；力学参数的反分析可为块体稳定性提供一定的理论基础.

关键词: 变角度空间, 岩块滑落, 极限平衡法, 向量法, 反分析

Abstract: The model test was carried out to simulate the sliding process of different rock mass by using the platform with variable angles developed by Northeastern University. Based on data acquisition at two sliding angles， the limit equilibrium method and vector method was theoretically applied to analyze doublesided sliding， singlesided sliding and spatial sliding angle. According to the broken structural plane， the MohrCoulomb criterion was used to backanalyze the mechanical parameters. The test result shows that， the increase of sided sliding angle is less when the boundary angle between sided sliding and doublesided sliding is between 40° and 50°， and the cohesion between block and structural plane rises with the increase of mortar grade. The mechanical parameters obtained based on back analysis can provide basis for the block stability analysis in theory.

Key words: variable angle space, block slide, limit equilibrium method, vector method, back analysis

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