[1]陈俊杰,朱刘娟,闫伟涛,等.高强度开采地表裂缝分布特征及形成机理分析[J].中国安全生产科学技术,2015,11(8):96-100.[doi:10.11731/j.issn.1673-193x.2015.08.016]
CHEN Jun-jie,ZHU Liu-juan,YAN Wei-tao,et al.Analysis on distribution characteristic and formation mechanism of surface fissures caused by high intensity mining[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(8):96-100.[doi:10.11731/j.issn.1673-193x.2015.08.016]
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高强度开采地表裂缝分布特征及形成机理分析
CHEN Jun-jie,ZHU Liu-juan,YAN Wei-tao,et al.Analysis on distribution characteristic and formation mechanism of surface fissures caused by high intensity mining[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(8):96-100.[doi:10.11731/j.issn.1673-193x.2015.08.016]
《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]
- 卷:
- 11
- 期数:
- 2015年8期
- 页码:
- 96-100
- 栏目:
- 职业安全卫生管理与技术
- 出版日期:
- 2015-08-30
文章信息/Info
- Title:
- Analysis on distribution characteristic and formation mechanism of surface fissures caused by high intensity mining
- 分类号:
- X936
- 文献标志码:
- A
- 摘要:
- 高强度开采引起的地表裂缝严重破坏矿区生态环境，对矿井的安全生产造成很大隐患。为了掌握高强度开采地表裂缝形成机理，以神东矿区地质采矿条件为基础，通过现场监测和理论分析方法，得到了地表裂缝分布规律及变形参数，分析了矿山高强度开采产生的非连续变形发育分布特征与地质采矿条件之间关系。研究表明：在高强度开采条件下，动态拉伸型地表裂缝随工作面推进而周期性地超前出现，超前距为15m，超前角为83°，裂缝密度1m左右，宽度1~3cm。台阶型裂缝总是出现在开采工作面边界的上下方、停采线上方和开切眼附近，裂缝落差20~40cm，间距8~11m，滞后距为4.2m，滞后角为86°。同时指出上覆厚风积沙松散层特性使地表裂缝具有一定的自动修复功能。
- Abstract:
- The surface fissures caused by high intensity mining destroy the ecological environment of mining district seriously, and they cause hidden hazard to work safety of mine. In order to grasp the formation mechanism of surface fissures caused by high intensity mining, based on the geological mining conditions in Shendong mining district, the distribution law and deformation parameters of surface fissures were obtained by field monitoring and theoretical analysis, and the relationship between the development and distribution characteristic of discontinuous deformation caused by high intensity mining and the geological mining conditions was analyzed. The results showed that: in the condition of high intensity mining, the dynamic stretch surface fissures always appear in advance periodically with the development of working face, the advance distance is 15m, the advance angle is 83°, the density of fissures is about 1m, and the width is 1~3cm. The step fissures always appears above and below the mining face boundary, above stopping mining line and nearby the open-off cut, the drop of fissure is 20~40cm, the separation distance is 8~11cm, the lag distance is 4.2m, and the lag angle is 86°. Meanwhile, it was pointed out that the characteristic of overlying thick aeolian sand unconsolidated formation make the surface fissures with a certain automated repair function.
参考文献/References:
[1]郭惟嘉，孙熙震，穆玉娥，等.重复采动地表非连续变形规律与机理研究[J].煤炭科学技术， 2013，41(2):1-4
GUO Wei-jia, SUN Xi-zhen, MU Yu-e，et al. Study on discontinuous deformation law and mechanism of repeated mining surface ground [J].Coal Science and Technology, 2013,41(2):1-4
[2]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）：47-51
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）:47-51
[3]郭文兵，黄成飞，陈俊杰. 厚湿陷黄土层下综放开采动态地表移动特征[J].煤炭学报，2010，35（S1）：38-43
GUO Wen-bing, HUANG Cheng-fei，CHEN Jun-jie. The dynamic surface movement characteristics of fully mechanized caving mining under thick hydrous collapsed loess[J]. Journal of China Coal Society, 2010,35（S1）:38-43
[4]胡振琪，王新静，贺安民. 风积沙区采煤沉陷地裂缝分布特征与发生发育规律[J].煤炭学报，2014，39（1）：11-18
HU Zhen-qi, WANG Xin-jing, HE An-min. Distribution characteristic and development rules of ground fissures due to coal mining in windy and sandy region [J]. Journal of China Coal Society，2014,39（1）:11-18
[5]吴洪词，张小彬，包太，等. 采动覆岩活动规律的非连续变形分析动态模拟[J].煤炭学报，2001，26（5）：486-492
WU Hong-ci, ZHANG Xiao-bin, BAO Tai, et al. Dynamic modeling for movement behavior of mined overlying strata using discontinuous deformation analysis method [J]. Journal of China Coal Society,2001,26（5）:486-492
[6]胡青峰，崔希民，袁德宝，等. 厚煤层开采地表裂缝形成机理与危害性分析[J].采矿与安全工程学报，2012，29（6）：864-869
HU Qing-feng, CUI Xi-min, YUAN De-bao, et al. Formation mechanism of surface cracks caused by thick seam mining and hazard analysis[J]. Journal of Mining & Safety Engineering,2012,29（6）:864-869
[7]姚娟，徐工.开采引起的地表裂缝规律研究[J]. 山东理工大学学报(自然科学版)，2009，23（6）：105-108
YAO Juan, XU Gong. The study on ground fissure by mining[J]. Journal of Shandong University of Technology( Natural Science Edition),2009,23（6）:105-108
[8]刘辉，何春桂，邓喀中，等.开采引起地表塌陷型裂缝的形成机理分析[J].采矿与安全工程学报，2013，30(3):380-384
LIU Hui, HE Chun-gui, DENG Ka-zhong, et al. Analysis of forming mechanism of collapsing ground fissure caused by mining [J]. Journal of Mining & Safety Engineering,2013,30(3):380-384
[9]陈俊杰，邹友峰，郭文兵.厚松散层下下沉系数与采动程度关系研究[J]. 采矿与安全工程学报, 2012,29（2）:250-254
CHEN Jun-jie, ZOU You-feng, GUO Wen-bing. Study on the relationship between subsidence coefficient and mining degree under thick alluvium[J]. Journal of Mining & Safety Engineering,2012,29（2）:250-254
[10]李志勇，曹源文，梁乃兴，等.风积沙的压实机理[J]. 中国公路学报,2006，19（5）：6-11
LI Zhi-yong, CAO Yuan-wen, LIA NG Na-xing, et al. Compaction mechanism of aeolian sand [J]. China Journal of Highway and Transport，2006,19（5）:6-11
[11]张展弢，龚海科，谢永利.内蒙古自治区风积沙的工程特性[J].河北工业大学学报，2006，35(3):112-117
ZHANG Zhan-tao, GONG Hai-ke, XIE Yong-li. The engineering property of aeolian sand in Inner Mongolia[J]. Journal of Hebei University of Technology,2006,35(3):112-117
[12]闫伟涛. 浅埋深高强度开采地表移动变形规律研究[D].焦作：河南理工大学，2014：47-56
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备注/Memo
- 备注/Memo:
- 国家自然科学基金委员会与神华集团有限责任公司联合资助项目（U1261206）； 河南省高校科技创新团队支持计划项目（13IRTSTHN029）
