Analysis on deformation and failure of Jijianao ventilation shaft roadway and  supporting countermeasures

YANG Yong

Safety in Coal Mines > 2021 > 52(4): 106-111.

YANG Yong. Analysis on deformation and failure of Jijianao ventilation shaft roadway and supporting countermeasures[J]. Safety in Coal Mines, 2021, 52(4): 106-111.

Citation:

YANG Yong. Analysis on deformation and failure of Jijianao ventilation shaft roadway and supporting countermeasures[J]. Safety in Coal Mines, 2021, 52(4): 106-111.

Citation:

YANG Yong. Analysis on deformation and failure of Jijianao ventilation shaft roadway and supporting countermeasures[J]. Safety in Coal Mines, 2021, 52(4): 106-111.

Analysis on deformation and failure of Jijianao ventilation shaft roadway and supporting countermeasures

YANG Yong

More Information

Published Date: April 19, 2021

Graphical Abstract

Abstract

Abstract

In order to solve the problem of large deformation of Jijianao ventilation shaft roadway in Xinyuan Mine, the nature of the surrounding rock of the ventilation shaft roadway was studied. The deformation and failure mode of the roadway was systematically analyzed. The composite supporting scheme of concrete-filled steel tube support and anchor is proposed. And the deformation and failure characteristics of the roadway under the two supporting schemes were analyzed by FLAC3D. In addition, the concrete-filled steel tube support scheme was tested in field. The research results show that under the original support scheme, the roof sinking amount is up to 1 100 mm, the two sides convergence is up to 700 mm, and the section shrinkage rate is 25% to 29%. The poor lithology of the surrounding rock of the roadway, frequent dynamic disturbances, and low support strength lead to large deformation of the ventilation shaft roadway. After using the concrete-filled steel tube support composite support scheme, the surrounding rock of the ventilation shaft roadway is controlled well. The sinking amount of the roof is 45-55 mm, and the deformation of the two sides is 25-35 mm, which ensures the normal use of the ventilation shaft roadway.
- ventilation shaft roadway,
- large deformation,
- concrete-filled steel tube support,
- roadway support,
- surrounding rock control

FullText(HTML)

References (21)

References

[1]	谢和平,彭苏萍,何满潮.深部开采基础理论与工程实践[M].北京:科学出版社,2005:3-32.
[2]	何满潮,谢和平,彭苏萍,等.深部开采岩体力学研究[J].岩石力学与工程学报,2005,24(16):2803-2813. HE Manchao, XIE Heping, PENG Suping, et al. Study on rock mechanics in deep mining engineering[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(16): 2803-2813.
[3]	康红普,范明建,高富强,等.超千米深井巷道围岩变形特征与支护技术[J].岩石力学与工程学报,2015, 34(11):2227-2241. KANG Hongpu, FAN Mingjian, GAO Fuqiang, et al. Deformation and support of rock roadway at depth more than 1 000 meters[J]. Chinese Journal of Rock Mechanics and Engineering,2015,34(11):2227-2241.
[4]	何满潮.软岩巷道工程概论[M].徐州:中国矿业大学出版社,1993.
[5]	康红普.我国煤矿巷道锚杆支护技术发展60年及展望[J].中国矿业大学学报,2016,45(6):1071-1081. KANG Hongpu. Sixty years development and prospects of rock bolting technology for underground coal mine roadways in China[J]. Journal of China University of Mining & Technology, 2016,45(6):1071-1081.
[6]	侯朝炯,勾攀峰.巷道锚杆支护围岩强度强化机理研究[J].岩石力学与工程学报,2000,19(3):342-345. HOU Chaojiong, GOU Panfeng. Mechanism study on strength enhancement for the rocks surrounding roadway supported by bolt[J]. Chinese Journal of Rock Mechanics and Engineering,2000,19(3):342-345.
[7]	董方庭.松动圈软岩锚喷支护理论和技术[M].徐州:中国矿业大学出版社,1996.
[8]	左建平,曹光明,孙运江,等.采矿围岩破坏力学与全空间协同控制实践[M].北京:科学出版社,2016.
[9]	Wu A X, Chen S M, Wang Y M, et al. Failure mechanism and supporting measures for large deformation of soft rock roadway in Baluba copper mine[J]. Archives of Mining Sciences, 2018, 63(2): 449-464.
[10]	LIU D, ZUO J, WANG J, et al. Large deformation mechanism and concrete-filled steel tubular support control technology of soft rock roadway-A case study[J]. Engineering Failure analysis, 2020, 116:1-19.
[11]	SHEN B T. Coal Mine Roadway Stability in Soft Rock: A Case Study[J]. Rock Mechanics and Rock Engineering, 2014, 47(6):2225-2238.
[12]	臧德胜,李安琴.钢管砼支架的工程应用研究[J].岩土工程学报,2001,23(3):342-344. ZANG Desheng, LI Anqin. Study on concrete-filled steel tube supports[J]. Chinese Journal of Geotechnical Engineering,2001,23(3):342-344.
[13]	王军.钢管混凝土圆弧拱的抗弯力学性能实验研究与工程应用[D].北京:中国矿业大学(北京),2014.
[14]	王琦,王德超,李为腾,等.U型约束混凝土拱架力学性能及变形破坏机制试验[J].煤炭学报,2015,40(5):1021-1029. WANG Qi, WANG Dechao, LI Weiteng,et al. Study on mechanical properties and deformation mechanism of U-type confined concrete arch centering[J]. Journal of China Coal Society, 2015, 40(5): 1021-1029.
[15]	曲广龙.钢管混凝土支架结构抗弯性能研究及应用[D].北京:中国矿业大学(北京),2013.
[16]	刘德军,左建平,郭淞,等.深部巷道钢管混凝土支架承载性能研究进展[J].中国矿业大学学报,2018,47(6):40-58. LIU Dejun, ZUO Jianping, GUO Song, et al. Research on load-bearing ability of steel tube confined concrete supports for deep roadway: state of the art[J]. Journal of China University of Mining & Technology, 2018, 47(6): 40-58.
[17]	刘德军,左建平,刘海雁,等.我国煤矿巷道支护理论及技术的现状与发展趋势[J].矿业科学学报,2020, 5(1):22-33. LIU Dejun, ZUO Jianping, LIU Haiyan,et al. Development and present situation of support theory and technology in coal mine roadway in China[J]. Journal of Mining Science and Technology, 2020, 5(1): 22-33.
[18]	高启波.钢管混凝土支架在金川矿山深部巷道支护中的研究与应用[J].有色金属(矿山部分),2018,70(3):65-69. GAO Qibo. Research and application of steel pipe concrete stents support technology in Jinchuan Mine deep roadway[J]. Non-ferrous metals(mine), 2018, 70(3): 65-69.
[19]	LIU D, ZUO J, WANG J., et al. Bending failure mechanism and strengthening of concrete-filled steel tubular support[J]. Engineering Structures, 2019,198:1-20.
[20]	李为腾,王乾,杨宁,等.钢管混凝土拱架在巷道支护中的发展与现状[J].土木工程学报,2016,49(11):97-114. LI Weiteng, WANG Qian, YANG Ning, et al. Development and present status of concrete-filled steel tubular supporting arch in mine roadway[J]. China Civil Engineering Journal, 2016, 49(11): 97-114.
[21]	高延法,刘珂铭,何晓升,等.钢管混凝土支架在千米深井中央泵房中的应用[J].煤矿安全,2015,46(5):164-171. GAO Yanfa, LIU Keming, HE Xiaosheng,et al. Application of concrete-filled steel tube support in kilometer deep central pump room[J]. Safety in Coal Mines, 2015, 46(5): 164-171.

[1]	ZHAO Yang, ZHAO Shankun, WANG Yin. Experimental study on time effect of stress structure in impact coal[J]. Safety in Coal Mines, 2024, 55(8): 97-107. DOI: 10.13347/j.cnki.mkaq.20240691
[2]	XU Xuefeng, SHI Pengke. Research of stress wave and crack propagation superposition effect of double-hole blasting in coal and rock mass[J]. Safety in Coal Mines, 2023, 54(10): 100-106. DOI: 10.13347/j.cnki.mkaq.2023.10.014
[3]	REN Shaokui, QIN Yujin, JIA Zongkai, SU Weiwei. Experimental study on effect of effective stress on permeability of coal[J]. Safety in Coal Mines, 2023, 54(1): 56-61.
[4]	ZHOU Feng, JIANG Yongdong, QIN Chao, LIU Zhengjie, LI Dong, XIE Yingliang, XIE Chenglong. Experimental study on influence of stress environment on coal-rock adsorption deformation and permeability[J]. Safety in Coal Mines, 2021, 52(10): 19-23,29.
[5]	XUE Junhua, LI Yanhe, LI Hongbiao, YUAN Zhandong, ZHAN Keliang. Experimental study on change mechanism of coal and rock permeability under total stress and strain condition[J]. Safety in Coal Mines, 2021, 52(2): 33-37.
[6]	ZHANG Yaqi, PENG Wenqing. Sensitivity Analysis of Influence of Many Factors on Coal Permeability Under Non-isostatic Deviating Stress[J]. Safety in Coal Mines, 2020, 51(9): 16-19.
[7]	YU Wenlong. Coupling Relationship and Control Mechanism Between Coal Permeability and Effective Stress[J]. Safety in Coal Mines, 2018, 49(8): 10-14.
[8]	DUAN Shoude, ZHAO Honggang, LI Yanzhi. Influence of Effective Stress on Seepage Characteristics of Coal Under Thermal Stress[J]. Safety in Coal Mines, 2018, 49(1): 29-32.
[9]	YANG Jingna, SU Hui. Effect of Firmness Coefficient on Tectonic Coal Gas Permeability and Stress-strain[J]. Safety in Coal Mines, 2016, 47(8): 12-15.
[10]	TAO Tao, CUI Hongqing. Fracture Effect of Coal Permeability Changes in Stress Concentration Belt[J]. Safety in Coal Mines, 2014, 45(11): 53-56.

Cited By

Get Citation

XML

Article views (13) PDF downloads (0)

Turn off MathJax

Article Contents

Abstract

References

Analysis on deformation and failure of Jijianao ventilation shaft roadway and supporting countermeasures

Abstract

References

Related Articles

Catalog

Analysis on deformation and failure of Jijianao ventilation shaft roadway and supporting countermeasures

Abstract

References

Related Articles

Catalog

Export File

Citation

Format

Content