|本期目录/Table of Contents|

[1]郝英剑,郝为宁,郝亚勋.不同切槽参数对围岩稳定性分析[J].中国安全生产科学技术,2014,10(7):76-81.[doi:10.11731/j.issn.1673-193x.2014.07.014]
 HAO Ying jian,HAO Wei ning,HAO Ya xun.Analysis on influence of different groove parameters to surrounding rock stability[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2014,10(7):76-81.[doi:10.11731/j.issn.1673-193x.2014.07.014]
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不同切槽参数对围岩稳定性分析
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
10
期数:
2014年7期
页码:
76-81
栏目:
职业安全卫生管理与技术
出版日期:
2014-07-31

文章信息/Info

Title:
Analysis on influence of different groove parameters to surrounding rock stability
作者:
郝英剑1郝为宁2 郝亚勋1
(1河南理工大学 能源科学与工程学院,河南 焦作 454000;2 鹤壁煤业五矿有限责任公司,河南 鹤壁 458000)
Author(s):
HAO Ying jian1HAO Wei ning2HAO Ya xun1
(1.School of Energy Science and Engineering,Henan Polytechnic University,Jiaozuo Henan 454000, China; 2.Fifth Coal Mine of Hebi Coal Industry Group Co,Hebi Henan 458000, China)
关键词:
底板切槽控制底鼓数值模拟巷道稳定性
Keywords:
floor grooving control of floor heave numerical simulation roadway stability
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2014.07.014
文献标志码:
A
摘要:
为了分析切槽深度和宽度对巷道围岩变形的影响和确定最佳的底板切槽参数,通过理论分析底板破坏的特征和相应的支护措施;采用FLAC 3D模拟了在不同切槽条件下巷道围岩变形的影响规律;研究了在不同切槽参数条件下巷道围岩的变形情况。结果表明,底板岩层强度不同时应当采取不同的支护措施,底板岩层强度较低时适宜采用加固法,强度较高时采用卸压法。当采用底板切槽来降低巷道围岩变形量时,在底鼓量逐渐减少时顶板下沉量也在急剧增加,并且顶板下沉量要大于底鼓的减少量。因此采用切槽卸压降低底鼓量的方法适用于顶板比较稳定的岩层,在底板中部切槽的效果要优于在两底角切槽,切槽深度为巷道宽度一半时,巷道稳定性最好。
Abstract:
In order to analyze the effect of groove depth and width on the deformation of roadway surrounding rock and determine the optimal groove parameters, the theoretical analysis was conducted on the floor deformation features and corresponding support measures, and the numerical simulation software FLAC 3D was applied to simulate the influence laws of roadway surrounding rock deformation under different groove parameters, and the surrounding rock deformation of roadway in this condition was studied. The results showed that different support measures should be taken when confronting different intensities of groove rock seam. When the intensity of floor rock seam is lower, the strengthening method is suitable, and when the intensity of floor rock seam is higher, the stress relief method is suitable. When using the method of floor grooving to decrease the deformation of roadway surrounding rock, the settlement of roof increases rapidly with the gradual decrease of floor heave, and the settlement of roof is bigger than the decrease of floor heave. The method of applying grooving stress relief to decrease the floor heave is suitable for the rock seam with better roof stability. The effect of grooving in middle of floor is better than that in base angle. The stability of roadway is the best when the cutting depth is half of the roadway width.

参考文献/References:

[1]康红普.软岩巷道底臌机理及防治[M].北京:煤炭工业出版社,1993
[2]靖洪文,李元海,赵保太.软岩工程支护理论与技术[M].徐州:中国矿业大学出版社,2008
[3]康红普,陆士良.巷道底鼓机理的分析[J].岩石力学与工程学报,1991, 10(4):362-373 KANG Hong-pu, LU Shi-liang . An analysis on the mechanism on roadway floor heave[J]. Chinese Journal of Rock Mechanics and Engi neering,1991,10(4):362-373
[4]王卫军,侯朝炯.沿空巷道底鼓力学原理及控制技术的研究[J].岩石力学与工程学报,2004,23(1):69-74 WANG Wei-jun,HOU Chao-jiong . Study on mechanical principle and control technique of floor heave in roadway driven along next goaf[J]. Chinese Journal of Rock Mechanics and Engineering,2004,23(1): 69-74
[5]耿敏敏,马占国,龚鹏,等.高应力煤巷卸压孔布置方式对卸压效果影响分析[J].中国安全生产科学技术,2012,8(11):5-10 GENG Min-min, MA Zhan-guo, GONG Peng, et al. Analysis of the effect on pressure relief by the pressure relieving hole layouts in high stress coal roadway[J]. Journal of Safety Science and Technology,2012,8(11):5-10
[6]李晓璐,赵善坤,吴宝杨.煤矿巷道底鼓数值模拟及割槽技术[J].煤矿安全,2006,44(1):68-70 LI Xiao-lu,ZHAO Shankun,WU Bao-yang . Numerical simulation of roadway floor heave and cutting trough technique [J]. Safety in Coal Mines,2006,44(1):68-70
[7]伍永平,王超,李慕平,等.煤矿软岩巷道顶底板剪切变形破坏机理[J].西安科技大学学报,2007,27(4):539-543 WU Yong-ping, WANG Chao, LI Mu-ping, et al . Mechanism of rooffloor shearing deformation and breakage in coalmine of soft rock roadway[J]. Journal of Xi’an University of Science and Technology,2007,27(4):539-543
[8]张辉,康红普,徐佑林.深井巷道底板预应力锚索快速加固技术研究[J].煤炭科学技术,2013,41(4):16-23 ZHANG Hui,KANG Hong-pu,XU You-lin . Study on rapid reinforced technology with prestressed anchor for floor ofmine roadway in deepmine [J]. Coal Science and Technology,2013,41(4):16-23
[9]黄运飞,杨维怀.地下工程围岩维护的新途径切缝弱化围岩法研究[J].重庆大学学报,1988,11(3):39-45 HUANG Yun-fei, YANG Weihuai . A new idea for protecting rock around underground excavationstudies of softening surrounding rock method[J]. Journal of Chongqing University,1988,11(3):39-45
[10]杨永杰.软岩巷道底臌及切缝[J].矿山压力与顶板管理,1993,10(1):9-13 YANG Yong-jie . Soft rock roadway floor heave and groove[J]. Ground Pressure and Strata Control,1993,10(1):9-13
[11]郭保华,陆庭侃. 深井巷道底鼓机理及切槽控制技术分析[J].采矿与安全工程学报, 2008,25(1):91-94 GUO Bao-hua, LU Ting-kan . Analysis of floor heave mechanism and cutting control technique in deepmines[J]. Journal of Mining & Safety Engineering,2008,25(1):91-94
[12]孙闯.巷道底鼓水平应力估算方法研究[J].西安科技大学学报,2013,33(2):216-220 SUN Chuang. Evaluation method of horizontal stress based on floor heave of roadway[J]. Journal of Xian University of Science and Technology,2013,33(2):216-220
[13]冯伟,韩立军,刘灿灿. 水平应力对半圆拱形巷道围岩应力分布及变形特征影响[J].中国安全生产科学技术,2012,8(12:):21-26 FENG Wei,HAN Li-jun,LIU Can-can. Influence of horizontal stress on stress distribution and deformation characteristics around arched roadway[J]. Journal of Safety Science and Technology,2012,,8(12):21-26
[14]孙训方,方孝淑,关来泰.材料力学[M].北京:高等教育出版社,2002

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更新日期/Last Update: 2014-07-30