Research of high pre-stress NPR support technology in deep shaft roadway engineering

Sun Xiaoming; Zhang Yong; He Manchao; Yang Jinkun

doi:10.19606/j.cnki.jmst.2023.01.005

Volume 8 Issue 1

Feb. 2023

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Article Navigation > Journal of Mining Science and Technology > 2023 > 8(1): 50-65

Sun Xiaoming, Zhang Yong, He Manchao, Yang Jinkun. Research of high pre-stress NPR support technology in deep shaft roadway engineering[J]. Journal of Mining Science and Technology, 2023, 8(1): 50-65. doi: 10.19606/j.cnki.jmst.2023.01.005

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Research of high pre-stress NPR support technology in deep shaft roadway engineering

doi: 10.19606/j.cnki.jmst.2023.01.005

Sun Xiaoming^{1, 2
,},
Zhang Yong^{1, 2
,
,},
He Manchao¹,
Yang Jinkun^{1, 2}

1.
State Key Laboratory for Geomechanics and Deep Underground Engineering, Beijing 100083, China
2.
School of Mechanics and Civil Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China

Received Date: 2022-09-01
Rev Recd Date: 2022-11-04
Publish Date: 2023-02-28

Abstract

Abstract

Deep coal resources are the crucial backup for China's energy security in the future. However, large deformation and instability of rock mass in deep roadway engineering still poses serious problems in the deep "three high and one complex" geomechanical environment. Therefore, this study departed from the support surrounding rock interaction and developed a series of NPR anchor bolts/cables with high strength, high constant resistance and large deformation mechanical properties. It constructed the constitutive equation of NPR anchor bolts, and carried out comprehensive mechanical tests indoor and on-site to verify the unique mechanical properties of NPR anchor bolts/cables. This study analyzed the interaction relationship between NPR support and surrounding rock, derived the constitutive relationship of rock mass supported by NPR, and elucidated the excavation compensation mechanical effect after adopting NPR coupling support, which revealed the high pre-stress NPR coupling support mechanism. By drawing on the actual working conditions of Daqiang Coal Mine, this study proposed the NPR support technology for intensive chambers group of deep pump house suction well with NPR bolt /cable as the core. The numerical analysis and field monitoring data show that the high prestress NPR coupling support technology can significantly improve the bearing characteristics of the support surrounding rock, effectively reduce the distribution and development range of the plastic zone of the rock mass in the roadway engineering, homogenize the support surrounding rock stress field, and reduce the overall deformation of the surrounding rock by more than 68 %, ensuring the long-term stability of the rock mass in the deep roadway engineering. The research results can provide reference for stability control of deep roadway engineering under similar conditions.
- deep,
- shaft and roadway engineering,
- high pre-stress,
- NPR,
- coupling support

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References(40)

References

[1]	何满潮. 深部建井力学研究进展[J]. 煤炭学报, 2021, 46(3): 726-746. https://www.cnki.com.cn/Article/CJFDTOTAL-MTXB202103004.htm He Manchao. Research progress of deep shaft construction mechanics[J]. Journal of China Coal Society, 2021, 46(3): 726-746. https://www.cnki.com.cn/Article/CJFDTOTAL-MTXB202103004.htm
[2]	刘志强, 宋朝阳, 纪洪广, 等. 深部矿产资源开采矿井建设模式及其关键技术[J]. 煤炭学报, 2021, 46(3): 826-845. https://www.cnki.com.cn/Article/CJFDTOTAL-MTXB202103011.htm Liu Zhiqiang, Song Zhaoyang, Ji Hongguang, et al. Construction mode and key technology of mining shaft engineering for deep mineral resources[J]. Journal of China Coal Society, 2021, 46(3): 826-845. https://www.cnki.com.cn/Article/CJFDTOTAL-MTXB202103011.htm
[3]	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. doi: 10.3321/j.issn:1000-6915.2005.16.001 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. doi: 10.3321/j.issn:1000-6915.2005.16.001
[4]	钱七虎. 岩爆、冲击地压的定义、机制、分类及其定量预测模型[J]. 岩土力学, 2014, 35(1): 1-6. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201401001.htm Qian Qihu. Definition, mechanism, classification and quantitative forecast model for rockburst and pressure bump[J]. Rock and Soil Mechanics, 2014, 35(1): 1-6. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201401001.htm
[5]	谢和平, 高峰, 鞠杨, 等. 深部开采的定量界定与分析[J]. 煤炭学报, 2015, 40(1): 1-10. https://www.cnki.com.cn/Article/CJFDTOTAL-MTXB201501001.htm Xie Heping, Gao Feng, Ju Yang, et al. Quantitative definition and investigation of deep mining[J]. Journal of China Coal Society, 2015, 40(1): 1-10. https://www.cnki.com.cn/Article/CJFDTOTAL-MTXB201501001.htm
[6]	何满潮. 深部的概念体系及工程评价指标[J]. 岩石力学与工程学报, 2005, 24(16): 2854-2858. doi: 10.3321/j.issn:1000-6915.2005.16.007 He Manchao. Conception system and evaluation indexes for deep engineering[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(16): 2854-2858. doi: 10.3321/j.issn:1000-6915.2005.16.007
[7]	张建民, 李全生, 张勇, 等. 煤炭深部开采界定及采动响应分析[J]. 煤炭学报, 2019, 44(5): 1314-1325. https://www.cnki.com.cn/Article/CJFDTOTAL-MTXB201905004.htm Zhang Jianmin, Li Quansheng, Zhang Yong, et al. Definition of deep coal mining and response analysis[J]. Journal of China Coal Society, 2019, 44(5): 1314-1325. https://www.cnki.com.cn/Article/CJFDTOTAL-MTXB201905004.htm
[8]	康红普. 我国煤矿巷道围岩控制技术发展70年及展望[J]. 岩石力学与工程学报, 2021, 40(1): 1-30. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX202101002.htm Kang Hongpu. Seventy years development and prospects of strata control technologies for coal mine roadways in China[J]. Chinese Journal of Rock Mechanics and Engineering, 2021, 40(1): 1-30. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX202101002.htm
[9]	Cook N, Ortlepp W. A yielding rock bolt[J]. Chamber of Mines of South Africa. Research Organization Bulletin, 1968, 8(14): 19-24.
[10]	Ortlepp W, Reed J J. Yieldable rock bolts for shock loading and grouted bolts for rock stabilization[J]. Mining Engineering, 1970, 4(5): 19-24.
[11]	何亚男, 候朝烔, 康红普. H型杆体可拉伸锚杆: 中国, CN87211250U[P]. 1988-09-07.
[12]	何亚男. H型杆体可拉伸锚杆的原理及应用[J]. 矿山压力与顶板管理, 1991, 8(3): 7-10, 72. https://www.cnki.com.cn/Article/CJFDTOTAL-KSYL199103001.htm He Yanan. Principle and application of type H rockbolts with extensible rod[J]. Ground Pressure and Strata Control, 1991, 8(3): 7-10, 72. https://www.cnki.com.cn/Article/CJFDTOTAL-KSYL199103001.htm
[13]	何亚男, 侯朝烱. 改进型杆体可拉伸锚杆: 中国, CN2081884U[P]. 1991-07-31.
[14]	高延法, 张文泉, 肖洪天, 等. 柔刚性可伸缩锚杆: CN2138193[P]. 1993-07-14.
[15]	王阁. 预应力让压锚杆的数值模拟研究及其应用[D]. 青岛: 山东科技大学, 2007.
[16]	Li C C. Field observations of rock bolts in high stress rock masses[J]. Rock Mechanics and Rock Engineering, 2010, 43(4): 491-496.
[17]	Kaiser P, Mccreath D, Tannant D. Rockburst support[J]. Rockburst Research Handbook, 1995, 40(5): 19-24.
[18]	李春林. 岩爆条件和岩爆支护[J]. 岩石力学与工程学报, 2019, 38(4): 674-682. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201904003.htm Li Chunlin. Rockburst conditions and rockburst support[J]. Chinese Journal of Rock Mechanics and Engineering, 2019, 38(4): 674-682. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201904003.htm
[19]	Ortlepp W. The design of support for the containment of rockburst damage in tunnels: An engineering approach[C]//International Symposium on Rock Support. Sudbury: 1992: 593-609.
[20]	Simser B, Andrieux P, Langevin F, et al. Field behaviour and failure modes of modified conebolts at the Craig, LaRonde and Brunswick Mines in Canada[J]. Deep and High Stress Mining, 2006, 2(5): 59-64.
[21]	Li C C, Doucet C. Performance of D-bolts under dynamic loading[J]. Rock Mechanics and Rock Engineering, 2012, 45(2): 193-204.
[22]	Chunlin Li C. A new energy-absorbing bolt for rock support in high stress rock masses[J]. International Journal of Rock Mechanics and Mining Sciences, 2010, 47(3): 396-404.
[23]	Ortlepp W, Bornman J, Erasmus N. The Durabar-a yieldable support tendon-design rationale and laboratory results[J]. Rockbursts and Seismicity in Mines, 2001, 4(2): 19-23.
[24]	Carlton R, Darlington B, Mikula P. In situ dynamic drop testing of the MD bolt at Mt Charlotte Gold Mine[C]//Proceedings of the Seventh International Symposium on Ground Support in Mining and Underground Construction. Australian Centre for Geomechanics, Perth, 2013.
[25]	Charette F, Plouffe M. Roofex^Ⓡ-results of laboratory testing of a new concept of yieldable tendon[C]//Proceedings of the International Conference on Deep and High Stress Mining, Proceedings of the Fourth International Seminar on Deep and High Stress Mining. Australian Centre for Geomechanics, Perth, 2007.
[26]	Varden R, Lachenicht R, Player J, et al. Development and implementation of the Garford dynamic bolt at the Kanowna Belle Mine[C]//10th Underground Operators' Conference. Launceston, 2008.
[27]	Wu Y K, Oldsen J. Development of a new yielding rock bolt-Yield-Lok bolt[C]//Proceedings of the 44th US Rock Mechanics Symposium. Salt Lake City, 2010: 1-6.
[28]	王爱文, 潘一山, 赵宝友, 等. 防冲吸能锚杆(索)的静动态力学特性与现场试验研究[J]. 岩土工程学报, 2017, 39(7): 1292-1301. https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC201707020.htm Wang Aiwen, Pan Yishan, Zhao Baoyou, et al. Static and dynamic mechanical properties of energy absorption bolts (cable) and field tests[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(7): 1292-1301. https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC201707020.htm
[29]	Toupin R A. Saint-Venant's Principle[J]. Archive for Rational Mechanics and Analysis, 1965, 18(2): 83-96.
[30]	何满潮, 冯吉利. 恒阻大变形锚杆: 中国, CN101858225A[P]. 2010-10-13.
[31]	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. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201608001.htm He Manchao, Li Chen, Gong Weili, 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. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201608001.htm
[32]	Sun X M, Zhang Y, Wang D, et al. Mechanical properties and supporting effect of CRLD bolts under static pull test conditions[J]. International Journal of Minerals, Metallurgy, and Materials, 2017, 24(1): 1-9.
[33]	何满潮, 郭志飚. 恒阻大变形锚杆力学特性及其工程应用[J]. 岩石力学与工程学报, 2014, 33(7): 1297-1308. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201407001.htm He Manchao, Guo Zhibiao. Mechanical property and engineering application of anchor bolt with constant resistance and large deformation[J]. Chinese Journal of Rock Mechanics and Engineering, 2014, 33(7): 1297-1308. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201407001.htm
[34]	宫伟力, 孙雅星, 高霞, 等. 基于落锤冲击试验的恒阻大变形锚杆动力学特性[J]. 岩石力学与工程学报, 2018, 37(11): 2498-2509. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201811008.htm Gong Weili, Sun Yaxing, Gao Xia, et al. Dynamic characteristics of constant-resistance-large-deformation bolts based on weight-dropping tests[J]. Chinese Journal of Rock Mechanics and Engineering, 2018, 37(11): 2498-2509. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX201811008.htm
[35]	何满潮, 王炯, 孙晓明, 等. 负泊松比效应锚索的力学特性及其在冲击地压防治中的应用研究[J]. 煤炭学报, 2014, 39(2): 214-221. https://www.cnki.com.cn/Article/CJFDTOTAL-MTXB201402002.htm He Manchao, Wang Jiong, Sun Xiaoming, et al. Mechanics characteristics and applications of prevention and control rock bursts of the negative poisson's ratio effect anchor[J]. Journal of China Coal Society, 2014, 39(2): 214-221. https://www.cnki.com.cn/Article/CJFDTOTAL-MTXB201402002.htm
[36]	何满潮, 郭洪燕, 夏敏. NPR无磁性锚杆钢材料及其生产方法: 中国, ZL201810504225.9[P]. 2018-05-23.
[37]	何满潮, 夏敏, 郭洪燕, 等. NPR钢筋盘圆的加工工艺: 中国, CN110523801B[P]. 2019-09-12.
[38]	Cai M, Kaiser P K. Rockburst support reference book-volume 1: rockburst phenomenon and support characteristics[M]. Sudbury: Laurentian University press, 2018.
[39]	He M C, Gong W L, Wang J, et al. Development of a novel energy-absorbing bolt with extraordinarily large elongation and constant resistance[J]. International Journal of Rock Mechanics and Mining Sciences, 2014, 67: 29-42.
[40]	何满潮, 孙晓明. 中国煤矿软岩巷道工程支护设计与施工指南[M]. 北京: 科学出版社, 2004: 128-143.

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Research of high pre-stress NPR support technology in deep shaft roadway engineering

doi: 10.19606/j.cnki.jmst.2023.01.005

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