[1]黄庆享,郭 强,曹 健,等.软岩大变形巷道破坏机理与支护技术[J].西安科技大学学报,2019,(06):934-941.
 HUANG Qing-xiang,GUO Qiang,CAO Jian,et al.Failure mechanism and support technology in soft rock large deformation roadway[J].Journal of Xi'an University of Science and Technology,2019,(06):934-941.
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软岩大变形巷道破坏机理与支护技术(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2019年06期
页码:
934-941
栏目:
出版日期:
2019-12-20

文章信息/Info

Title:
Failure mechanism and support technology in soft rock large deformation roadway
文章编号:
1672-9315(2019)06-0934-08
作者:
黄庆享12郭 强12曹 健12钱万学3侯 挺3赵 轩3
(1.西安科技大学 能源学院,陕西 西安 710054; 2.西安科技大学 西部矿井开采及灾害防治教育部重点实验室,陕西 西安 710054; 3.陕煤集团韩城矿业有限公司 象山矿井,陕西 韩城 715400)
Author(s):
HUANG Qing-xiang12GUO Qiang12CAO Jian12QIAN Wan-xue3HOU Ting3ZHAO Xuan3
(1.College of Energy Science and Engineering,Xi'an University of Science and Technology,Xi'an 710054,China; 2.Key Laboratory of Western Mine Exploitation and Hazard Prevention,Ministry of Education,Xi'an University of Science and Technology,Xi'an 710054,China; 3.Xiangshan Coal Mine,Shaanxi Coal Group Hancheng Mining Co.,Ltd.,Hancheng 715400,China)
关键词:
石门 软岩 变形规律 破坏机理 自稳平衡圈理论
Keywords:
cross-cut soft rock deformation characteristics failure mechanism theory of self-stable ring
分类号:
TD 353
文献标志码:
A
摘要:
针对软岩大变形巷道围岩控制难题,以象山矿井南一石门为工程背景,采用现场取样、物理相似模拟和FLAC3D数值计算,分析了巷道围岩物理力学性质,掌握了巷道各阶段围岩基本变形规律,得出巷道变形表现为四周收敛,具有明显的软岩特征,变形速度达3~4 mm/d.研究发现:巷道底板极限平衡区最大深度为3.57 m,两帮极限平衡区最大深度为1.86 m,顶板极限平衡拱高度为4.26 m.基于上述分析,结合“自稳平衡圈理论”,提出合理的巷道支护方案,采用直墙圆弧拱带反拱优化断面,确定了全断面采用锚杆锚索+钢筋梯子梁+金属网喷浆支护,对围岩极其破碎阶段进行注浆,顶锚杆长度2.4 m,锚索长度6 m; 帮锚杆长度2.4 m,锚索长度4 m; 底板采用长度1.5 m的注浆锚杆,全断面采用金属网喷浆封闭。该研究方案已被矿区采纳。
Abstract:
With No.1 south crosscut in Xiangshan Coal Mine as an example,the physical and mechanical parameters of surrounding rock of roadway were measured through site sampling,physical simulation and FLAC3D numerical simulation,the physical and mechanical parameters based on the surrounding rock control of soft large deformation roadway,which revealed the deformation characteristics of surrounding rock at different stages of roadway.It can be found that deformation represents convergence all around the roadway,having obvious soft rock characteristics,and the deformation velocity reaches 3~4 mm per day.The results show that:the largest depth of limit equilibrium zone in roadway floor is 3.57 m,the largest depth of limit equilibrium zone in roadway ribs is 1.86 m,and the height of limit equilibrium arch in roadway roof is 4.26 m.Based on the analysis above,coupled with the “theory of self-stable ring”,the reasonable support scheme of roadway was put forward,straight wall circular arch with reverse arch was applied to optimize the roadway section,all section with the bolt and cable,steel beam and shotcreting with wire mesh was adopted in roadway support,and grouting was used in extreme broken stage of roadway.The length of roof bolt is 2.4 m,the length of cables is 6m,the bolts length of roadway rib is 2.4 m and the cable length is 4m,grouted bolt of 1.5 m is adopted in roadway floor,shotcreting with wire mesh was applied at all sections of roadway.The support scheme has been adopted by the coal mine.

参考文献/References:

[1] 何满潮,袁和生,靖洪文.中国煤矿锚杆支护理论与实践[M].北京:科学出版社,2004. HE Man-chao,YUAN He-sheng,JING Hong-wen.Theory and practice of bolt support in coal mines of China[M].Beijing:Science Press,2004. [2]何满潮.深部软岩工程的研究进展与挑战[J].煤炭学报,2014,39(8):1409-1417. HE Man-chao.Progress and challenges of soft rock engineering in depth[J].Journal of China Coal Society,2014,39(8):1409-1417. [3]何满潮,李 晨,宫伟力,等.NPR锚杆/索支护原理及大变形控制技术[J].岩石力学与工程学报,2016,35(8):1513-1529. HE Man-chao,LI Chen,GONG Wei-li,et al.Support principles of NPR bolts/cables and control techniques of large deformation.[J].Chinese Journal of Rock Mechanics and Engineering,2016,35(8):1513-1529. [4]董方庭.巷道围岩松动圈支护理论与应用技术[M].北京:煤炭工业出版社,2001. DONG Fang-ting.Theory and application technology of loose ring support for roadway surrounding rock[M].Beijing:Coal Industry Publishing House,2001. [5]DONG Fang-ting,GUO Zhi-hong,LAN Bing.The theory of supporting broken zone in surrounding rock[J].Journal of China University of Mining & Technology,1991,2(1):66-73. [6]董方庭,宋宏伟,郭志宏,等.巷道围岩松动圈支护理论[J].煤炭学报,1994,19(1):21-32. DONG Fang-ting,SONG Hong-wei,GUO Zhi-hong,et al.Support theory of roadway surrounding rock loose circle[J].Journal of China Coal Society,1994,19(1):21-32. [7]康红普,王金华,林 健.煤矿巷道支护技术的研究与应用[J].煤炭学报,2010,35(11):1809-1814. KANG Hong-pu,WANG Jin-hua,LIN Jian.Study and application of roadway support techniques for coal mines[J].Journal of China Coal Society,2010,35(11):1809-1814. [8]康红普.煤巷锚杆支护成套技术研究与实践[J].岩石力学与工程学报,2005,24(21):161-166. KANG Hong-pu.Study and application of complete rock bolting technology to coal roadway[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(21):161-166. [9]侯朝炯.深部巷道围岩控制的关键技术研究[J].中国矿业大学学报,2017,46(5):970-978. HOU Chao-jiong.Key technologies for surrounding rock control in deep roadway[J].Journal of China University of Mining and Technology,2017,46(5):970-978. [10]侯朝炯.巷道围岩控制[M].徐州:中国矿业大学出版社,2013. HOU Chao-jiong.Surrounding rock control of roadway[M].Xuzhou:China University of Mining and Technology Press,2013. [11]HOU Chao-jiong.Review of roadway control in soft surrounding rock under dynamic pressure[J].Journal of Coal Science & Engineering(China),2003(1):1-7. [12]侯朝炯.深部巷道围岩控制的有效途径[J].中国矿业大学学报,2017,46(3):467-473. HOU Chao-jiong.Effective approaches for surrounding rock control in deep roadway[J].Journal of China University of Mining and Technology,2017,46(3):467-473. [13]杨本生,王仲永,贾永丰,等.深部高应力工程软岩巷道非连续“双壳”围岩控制机理研究[J].采矿与安全工程学报,2015,32(5):721-727. YANG Ben-sheng,WANG Zhong-yong,JIA Yong-feng,et al.Study on mechanism of the discontinuous “Double Shell”surrounding rock control in deep soft engineering rock roadway[J].Journal of Mining and Safety Engineering,2015,32(5):721-727. [14]杨本生,高 斌,孙利辉,等.深井软岩巷道连续“双壳”治理底鼓机理与技术[J].采矿与安全工程学报,2014,31(4):587-592. YANG Ben-sheng,GAO Bin,SUN li-hui,et al.Study on technology and mechanism of continuous “Double Shell” harnessing floor heave in deep soft-engineering rock roadway.[J].Journal of Mining and Safety Engineering,2014,31(4):587-592. [15]贾后省,马念杰,朱乾坤.巷道顶板蝶叶塑性区穿透致冒机理与控制方法[J].煤炭学报,2016,41(6):1384-1392. JIA Hou-sheng,MA Nian-jie,ZHU Qian-kun.Mechanism and control method for roof fall resulting from butterfly plastic zone penetration[J].Journal of China Coal Society,2016,41(6):1384-1392. [16]赵志强,马念杰,郭晓菲,等.大变形回采巷道蝶叶型冒顶机理与控制[J].煤炭学报,2016,41(12):2932-2939. ZHAO Zhi-qiang,MA Nian-jie,GUO Xiao-fei,et al.Falling principle and support design of butterfly-failure roof in large deformation mining roadways[J].Journal of China Coal Society,2016,41(12):2932-2939. [17]黄庆享,郝高全.回采巷道底板破坏范围及其影响研究[J].西安科技大学学报,2018,38(1):51-58. HUANG Qing-xiang,HAO Gao-quan.Research on the floor failure range and its effects of entry[J].Journal of Xian University of Science and Technology,2018,38(1):51-58. [18]黄庆享,刘玉卫.巷道围岩支护的极限自稳平衡拱理论[J].采矿与安全工程学报,2014,31(3):354-358. HUANG Qing-xiang,LIU Yu-wei.Ultimate self stable arch theory in roadway support[J].Journal of Mining and Safety Engineering,2014,31(3):354-358. [19]黄庆享,郑 超.巷道支护的自稳平衡圈理论[J].岩土力学,2016,37(5):1231-1236. HUANG Qing-xiang,ZHENG Chao.Theory of self stable ring in roadway support[J].Rock and Soil Mechanics,2016,37(5):1231-1236. [20]黄庆享,王德发.三软煤层巷道锚杆加固机理模拟研究[J].煤炭技术,2015,34(1):63-66. HUANG Qing-xiang,WANG De-fa.Study of pretension bolting mechanism in soft rock roadway[J].Coal Technology,2015,34(1):63-66. [21]黄庆享,石中情.三软煤层巷道围岩自稳平衡圈分析[J].西安科技大学学报,2016,36(3):331-335. HUANG Qing-xiang,SHI Zhong-qing.Theory of equilibrium circle of roadway in three soft coal seam[J].Journal of Xi'an University of Science and Technology,2016,36(3):331-335.

相似文献/References:

[1]伍永平,曾佑富,解盘石,等.急倾斜重复采动软岩巷道失稳破坏分析[J].西安科技大学学报,2012,(04):403.
 WU Yong-ping,ZENG You-fu,XIE Pan-shi,et al.Analysis of unstable failure of soft rock roadway in steep coal seam during repeat mining[J].Journal of Xi'an University of Science and Technology,2012,(06):403.

备注/Memo

备注/Memo:
收稿日期:2019-05-20 责任编辑:刘 洁
基金项目:国家自然科学基金(51674190)
通信作者:黄庆享(1966-),男,新疆沙湾人,教授,博士生导师,E-mail:361923187@qq.com
更新日期/Last Update: 2019-12-20