Study of roof fissures of mining induced roadway in Shuanghe Coal Mine based on fractal theory

WANG Zhi-gang; GUO Xiao-fei

doi:10.16285/j.rsm.2017.08.027

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Study of roof fissures of mining induced roadway in Shuanghe Coal Mine based on fractal theory

更新时间：2026-06-25

- Study of roof fissures of mining induced roadway in Shuanghe Coal Mine based on fractal theory
- Vol. 38, Issue 8, Pages: 2377-2384(2017)
- 作者机构：
  
  中国矿业大学（北京）资源与安全工程学院,北京,100083
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2017.08.027
  CLC： TD322
- Online First：05 June 2018，
  
  Published：2017
- 稿件说明：
移动端阅览
WANG Zhi-gang, GUO Xiao-fei. Study of roof fissures of mining induced roadway in Shuanghe Coal Mine based on fractal theory[J]. 2017, 38(8): 2377-2384.
DOI：

WANG Zhi-gang, GUO Xiao-fei. Study of roof fissures of mining induced roadway in Shuanghe Coal Mine based on fractal theory[J]. 2017, 38(8): 2377-2384. DOI： 10.16285/j.rsm.2017.08.027.

摘要

巷道顶板的变形量是评价巷道顶板稳定性的一个重要指标，巷道顶板裂隙的间距分形维是综合反映顶板裂隙发育、分布特征的一个重要参数，尝试建立二者之间的数学关系。利用多基点位移计对双河煤矿采动巷道顶板的变形量进行了监测，利用钻孔电视成像仪对顶板内裂隙的发育和分布状况进行了监测，并且计算出顶板内裂隙间距的分形维。结果表明，顶板0～2 m内裂隙最为发育，在此范围内，裂隙线密度与裂隙间距分形维具有相同的变化趋势，二者具有线性关系；顶板的变形量与相应的裂隙间距分形维具有相同的变化趋势，顶板裂隙的间距分形维增大，相应的围岩变形量增大，二者之间存在线性关系。研究结果表明，顶板裂隙的间距分形维是综合反映巷道顶板稳定性的一个指标，可以作为巷道顶板稳定性的指标，对巷道顶板稳定性进行评价，为支护设计提供可靠依据。

Abstract

The deformation of roadway roof is considered as an important index for evaluating the stability of roadway roof. In addition

the spacing fractal dimension of the fissures is a significant parameter of comprehensively reflecting the development and distribution characteristics of the fissures in roadway roof. In this study

a mathematical relationship between these two indexes was established. The multiple-point displacement meter was used to monitor the roof deformation of the mining induced roadway in Shuanghe Coal Mine. Meanwhile

the mine bore TV imager was employed to observe the development and distribution characteristics of the fissures in roadway roof. Thus

the spacing fractal dimension of the fissures was calculated. The monitoring results show that the most developed fissures were found in the range of 0~2 m of the roof. In this range

the linear density of fissures followed the same change law with the spacing fractal dimension of the fissures

and a linear relationship was found between them. The same change trend exists both in the roof deformation of the roadway and the associated spacing fractal dimension of fissures. The corresponding roof deformation increased with increasing the spacing fractal dimension of fissures

furthermore they increased linearly. This study indicates that the spacing fractal dimension of fissures in roadway roof is an indicator that can comprehensively reflect the stability of roadway roof. Hence

this study provides a reliable basis for evaluating the stability of roadway roof and designing the supporting.

关键词

Keywords

references

Views

247

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Study of spatial effect of site around collapse basin caused by deep coal mining

Effect of salt content on microstructure indices of solidified inshore saline soil with lime

Study on engineering synthetical classification of rock-soil aggregate mixture

Elasto-viscoplastic bounding surface model for unsaturated time-dependent soils incorporating non-stationary flow rule

Mechanism of water infiltration affecting ground ice melting in the silty clay layers of the Dema Expressway in the eastern Qinghai-Xizang Plateau

Related Author

CAI Jiang-dong

CHAI Shou-xi

WANG Xiao-yan

WANG Pei

WEI Li

ZHONG Xiao-mei

李芳

DONG Yun

Related Institution

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

Department of Civil Engineering, Tianjin Institute of Urban Construction

Tianjin Key Laboratory of Soft Soil Characteristics and Engineering Environment

Institute of Investigation, China Water Resources, Beifang Investigation, Design and Research Co. Ltd.

淮阴工学院建筑工程系

AI问答

⁰