|本期目录/Table of Contents|

[1]朱国宏,连达军.开采沉陷对矿区地表裂缝的采动累积效应分析[J].中国安全生产科学技术,2012,8(5):47.
 ZHU Guo hong,LIAN Da jun.Analysis on mininginduced cumulative effective of surface cracks in mining areas[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2012,8(5):47.
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开采沉陷对矿区地表裂缝的采动累积效应分析
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
8
期数:
2012年5期
页码:
47
栏目:
学术论著
出版日期:
2012-05-31

文章信息/Info

Title:
Analysis on mininginduced cumulative effective of surface cracks in mining areas
作者:
朱国宏12连达军13
(1. 国土环境与灾害监测国家测绘局重点实验室中国矿业大学,徐州 211116 ) (2. 山西煤炭职业技术学院 采矿工程系,太原 030031) (3. 苏州科技学院 空间信息与测绘工程系,苏州 215011)
Author(s):
ZHU Guohong12 LIAN Dajun13
(1. Key Laboratory for Land Environment and Disaster Monitoring of SBSM(China University of Minging and Technology),  Xuzhou 211116, China) (2. Department of Mining Engineering, Shanxi Vocational and Technical College of Coal, Taiyuan 030031, China) (3. School of Environment Science and Spatial Informatics, University of Science and Technology of Suzhou 215011,China)
关键词:
地表拉伸裂缝采动累积效应采动时间拥挤效应延迟效应
Keywords:
surface crack mininginduced cumulative effective mininginduced time crowded effective the delay effective
分类号:
X936;TD325.2
DOI:
-
文献标志码:
A
摘要:
基于开采沉陷学和岩石力学理论分析矿区地表裂缝的采动累积效应。采用概率积分法、胡克定律和莫尔-库伦破坏准则等方法描述并量化地表拉伸裂缝的采动累积效应表征指标,提出了采动裂缝时间拥挤效应和采动延迟效应表征指标及采动空间拥挤效应表征指标。对研究区地表裂缝采动时间拥挤效应的实地观测与数值模拟分析结果表明,上下分层动态裂缝持续时间和永久裂缝显现时刻与地表移动活跃期吻合;采动空间拥挤效应分析结果表明,采动裂缝水平延伸长度、宽度和深度均比永久裂缝小,下分层开采裂缝比上分层发育,下山方向比其他部位裂缝发育。
Abstract:
The paper analyzes the mininginduced cumulative effective of surface cracks based on Mining subsidence science and rock mechanics theory. The cumulative effective characterization indexes of tension cracks were described and quantized by means of probability integral method, the hooker law and Moorethe coulomb failure criteria. The dynamic crack's duration and the permanent crack's appearance time was proposed as the evaluating indicators of the time crowded effective and the delay effective. The density, the length of horizontal extension, the width, the depth of cracks and the falls of step cracks was proposed as the evaluating indicators of the space crowded effective. Case field observation and the numerical simulation results of the time crowded effective show that the dynamic crack's duration and the permanent crack's appearance time accords with the activity period of surface movement. The space crowded effective analysis shows that the horizontal length, the width, the depth of dynamic cracks is smaller than the permanent ones. Mining cracks of lower slice more develop than cracks of upper slice. Cracks at the descends mountain direction more develop than else directions

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备注/Memo

备注/Memo:
国土环境与灾害监测国家测绘局重点实验室开放基金项目(编号:LEDM2009C06)
更新日期/Last Update: 2012-06-04