Experimental study of effects of fracture type on strength characteristics 
and failure modes of fractured rockmass

LIU Xue-wei; LIU Quan-sheng; CHEN Yuan; LI Qiang

doi:10.16285/j.rsm.2015.S2.027

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Experimental study of effects of fracture type on strength characteristics and failure modes of fractured rockmass

更新时间：2026-06-25

- Experimental study of effects of fracture type on strength characteristics and failure modes of fractured rockmass
- Vol. 36, Issue S2, Pages: 208-214(2015)
- 作者机构：
  
  1. 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室,湖北,武汉,430071
  2. 武汉荆力工程设计咨询有限公司,湖北,武汉,430071
  3. 中国水电顾问集团中南勘测设计研究院有限公司,湖南,长沙,410014
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2015.S2.027
  CLC： TU452
- Online First：14 June 2018，
  
  Published：2015
- 稿件说明：
移动端阅览
LIU Xue-wei, LIU Quan-sheng, CHEN Yuan, et al. Experimental study of effects of fracture type on strength characteristics and failure modes of fractured rockmass[J]. 2015, 36(S2): 208-214.
DOI：

LIU Xue-wei, LIU Quan-sheng, CHEN Yuan, et al. Experimental study of effects of fracture type on strength characteristics and failure modes of fractured rockmass[J]. 2015, 36(S2): 208-214. DOI： 10.16285/j.rsm.2015.S2.027.

摘要

利用RMT－150C电液伺服机对含不同预制裂隙形式（单、双、T形交叉及X形交叉裂隙）的类岩石试样进行了单轴压缩试验，系统地研究了裂隙形式对试样强度特征及失稳模式的影响。试验发现，（1）不同裂隙形式下裂隙的起裂破坏模式主要表现为初始裂隙起裂破坏，裂隙形式与破坏模式关系不突出；（2）单轴抗压强度受裂隙形式影响明显，随着裂隙形式由单裂隙到X形交叉裂隙变化，裂隙试样抗压强度呈现增高趋势，同时试样起裂和失稳时的声发射总能量也逐渐增大。进一步对裂隙形式影响强度特征的机制进行了初步分析，研究成果可以反映不同裂隙形式组合对工程岩体稳定性的影响规律。

Abstract

A series of uniaxial compression tests is carried out on the gypsum specimens with different fracture types

including single fracture

two coplanar fractures

T-shape and X-shape cross-fractures

through the electrohydraulic servo machine RMT-150C. Then

influences of fracture types on failure modes and strength characteristics are investigated. The experimental results show that: (1) The failure mode is initial fractures propagation for all the specimens with different fracture types

which means that the relationship between failure mode and fracture type is not obvious. (2) The fracture type can affect the uniaxial compressive strength (UCS) of specimens significantly

with the fracture type transfer from single fracture to the X-shape cross-fractures

the UCS increase gradually; and the total acoustic emission energy of fracture specimens initiation and unstable increase too. Furthermore

the mechanism of how the fracture type affects the UCS is studied preliminarily. The research results can reflect the influence laws of different fracture types on the stability of rock mass.

关键词

Keywords

references

Views

842

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Tightness evaluation test on underground energy storage in bedded salt rock formation of Qianjiang area

Experimental study of anisotropically mechanical characteristics of sandy slate in Xuefeng mountain tunnel

Influence of strain rate on progressive failure process and characteristic stresses of red sandstone

Experimental study of expansive behaviors of quicklime

Experiment study of explosion energy coupling coefficient with different burial depths in saturated soils

Related Author

HUANG Xiao-lan

YANG Chun-he

CHEN Feng

LI Yin-ping

LI Ying-fang

GAO Chun-yu

XU Jin

LI Zhong-hong

Related Institution

Jianghan Oilfield Company of Sinopec

College of Resources and Environmental Sciences, Chongqing University

Experimental Centre, Investigation Branch, Kunming Hydroelectric Investigation and Design Insitute

School of Water Resources and Hydropower, Sichuan University

State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining & Technology

AI问答

⁰