超前液压支架群组–锚固耦合支护力学特性研究及实验验证

doi:10.13722/j.cnki.jrme.2020.1142

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (38192 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract In order to research the supporting mechanical characteristics of advanced hydraulic support group and bolt (cable) coupling support for surrounding rocks，the Mindlin-Reissner plate theory was employed to describe the mechanical characteristics of the surrounding rock，and the energy functional was used to describe the supporting force of the equivalent support group and the bolt(cable) action. A mechanical model of the advanced hydraulic support group-anchor coupling support of surrounding rocks was established，in which the penalty function was introduced to constraint the model boundary strategies and the system control equations were obtained based on Hamilton principle. According to the advanced support parameters of the 15106 working face in Wenjiazhuang coal mine of Pingshu company of Shanxi Yangquan Group，the deformations as well as the bending moment and stress distributions of the roof under three strategies including the anchor support，the equal strength support and the non-equal strength support were obtained by solving the model with Ritz method. Comparisons of the supporting effects among three supporting strategies show that，compared with the anchor support，the maximum displacement，the bending moment and the stress of the roof under advanced hydraulic support group anchor coupling support are reduced by 36.87%，35.85% and 47.81%，respectively，indicating that the coupling support can effectively maintain the stability of the roof，and that，compared with the equal strong coupling support，the maximum displacement，the bending moment and the stress of the roof under the non-equal strength coupling support condition are reduced by 10.29%，12.2% and 29.53%，respectively，proving that the non-equal strength coupling support was effective to maintain the stability of the surrounding rock. Consequently，a “continuous gradient” non-equal strength support strategy of advanced hydraulic support group anchor coupling support was put forward. Laboratory tests by using the three-dimensional similar simulation experiment platform designed by the Key Laboratory of Mine Subsidence Disaster Prevention and Control of Department of Education of Liaoning Province were carried out to verify the effectiveness of the “continuous gradient” non-equal strong coupling support strategy，and the experimental results were compared with the theoretical results. It is revealed that the maximum displacement error and the maximum stress error of the equal strength support and the non-equal strength coupling support were respectively 7.2 mm and 0.48 MPa and 5.9 mm and 0.19 MPa，showing the accuracy of the mechanical model and the effectiveness of the mechanical characteristics of the coupling support considering the experiment complexity. Finally，the field application experiment of the “continuous gradient” non-equal strength support strategy was carried out in the 15106 working face of Wenjiazhuang coal mine to verify the effectiveness of the research results. The research results provide a theoretical support for the safety and stability maintenance and the intelligent support control of deep mine surrounding rocks.

Key words： mining engineering advanced hydraulic support group coupling support non-equal strength support strategy mechanical properties similarity simulation experiment

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	ZHANG Kun1
	2
	3
	LI Yuxia1
	ZHONG Donghu4
	MENG Xiangjun2
	HUANG Qingxue3
	XU Yajun5
	CHEN Hongyue4
	MA Ying5
	ZHANG Desheng5
	HUANG Liangsong1
	SU Jinpeng1

Cite this article:

ZHANG Kun1,2,3, et al. Research and experimental verification of mechanical characteristics of advanced hydraulic support group-anchor coupling support[J]. , 2021, 40(7): 1428-1443.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2020.1142 OR https://rockmech.whrsm.ac.cn/EN/Y2021/V40/I7/1428

[1] 王国法，徐亚军，孟祥军，等. 智能化采煤工作面分类、分级评价指标体系[J]. 煤炭学报，2020，45(9)：3 033–3 044.(WANG Guofa，XU Yajun，MENG Xiangjun，et al. Pecification，classification and grading evaluation index for smart longwall mining face[J]. Journal of China Coal Society，2020，45(9)：3 033–3 044.(in Chinese))
[2] 王国法，杜毅博，任怀伟，等. 智能化煤矿顶层设计研究与实践[J]. 煤炭学报，2020，45(6)：1 909–1 924.(WANG Guofa，DU Yibo，REN Huaiwei，et al. Top level design and practice of smart coal mines[J]. Journal of China Coal Society，2020，45(6)：1 909–1 924.(in Chinese))
[3] 庞义辉，王国法，李冰冰. 深部采场覆岩应力路径效应与失稳过程分析[J]. 岩石力学与工程学报，2020，39(4)：682–694.(PANG Yihui，WANG Guofa，LI Bingbing. Stress path effect and instability process analysis of overlying strata in deep stopes[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(4)：682–694.(in Chinese))
[4] 刘新华. 采煤工作面沿空巷道无反复支撑超前支护技术[J]. 煤炭工程，2017，49(11)：38–40.(LIU Xinhua. Advance support technology of gob side entry without in coal mining face[J]. Coal Engineering，2017，49(11)：38–40.(in Chinese))
[5] 王国法，王虹，任怀伟，等. 智慧煤矿2025情景目标和发展路径[J]. 煤炭学报，2018，43(2)：295–305.(WANG Guofa，WANG Hong，REN Huaiwei，et al. 2025 scenarios and development path of intelligent coal mine[J]. Journal of China Coal Society，2018，43(2)：295–305.(in Chinese))
[6] 徐亚军，张坤，李丁一，等. 超前支架自适应支护理论与应用[J]. 煤炭学报，2020，45(10)：3 615–3 624.(XU Yajun，ZHANG Kun，LI Dingyi，et al. Theory and application of self-adaptive support for advanced powered support[J]. Journal of China Coal Society，2020，45(10)：3 615–3 624.(in Chinese))
[7] 刘一凡. 煤矿巷道快速掘进临时支架结构设计研究[硕士学位论文][D]. 西安：西安科技大学，2019.(LIU Yifan. Research on design of temporary support structure for rapid excavation of coal mine roadway[M. S. Thesis][D]. Xi¢an：Xi¢an University of Science and Technology，2019.(in Chinese))
[8] 薛光辉，管健，柴敬轩，等. 基于神经网络PID综掘巷道超前支架支撑力自适应控制[J]. 煤炭学报，2019，44(11)：3 596–3 603. (XUE Guanghui，GUAN Jian，CHAI Jingxuan，et al. Adaptive control of advance bracket support force in fully mechanized roadway based on neural network PID[J]. Journal of China Coal Society，2019，44(11)：3 596–3 603.(in Chinese))
[9] 王根盛，宋淑光，曹连民，等. 垛式超前支架在大采高巷道支护中的应用研究[J]. 煤炭科学技术，2017，45(8)：159–163.(WANG Gensheng，SONG Shuguang，CAO Lianmin，et al. Study on stack type advanced powered support applied to roof support of high cutting gataway[J]. Coal Science and Technology，2017，45(8)：159–163.(in Chinese))
[10] 谢苗，刘治翔，卢进南，等. 超前支架相似实验样机研制及其与顶板耦合力学实验[J]. 煤炭学报，2017，42(5)：1 319–1324.(XIE Miao，LIU Zhixiang，LU Jinnan，et al. Development of siminlar experimental prototype of the advanced support and the experimental study on its coupling mechanics with roof[J]. Journal of China Coal Society，2017，42(5)：1 319–1 324.(in Chinese))
[11] 唐治. 自移式吸能防冲巷道支架研究[博士学位论文][D]. 阜新：辽宁工程技术大学，2014.(TANG Zhi. Study on self-moving energy absorption and anti-impact roadway support[Ph. D. Thesis][D]. Fuxin：Liaoning Technical University，2014.(in Chinese))
[12] 龙景奎，杨风才，何敏，等. 深部回采巷道超前压力区锚索梁协同锚固试验研究[J]. 采矿与安全工程学报，2021，38(1)：103–109. (LONG Jingkui，YANG Fengcai，HE Min，et al. Experimental study on synergistic anchorage of cable beam in the advanced pressure zone of deep mining roadways[J]. Journal of Mining and Safety Engineering，2021，38(1)：103–109.(in Chinese))
[13] 焦建康，鞠文君. 动载扰动下巷道锚固承载结构冲击破坏机制[J]. 煤炭学报，2020，DOI：10.13225/j.cnki.jccs.2020.1525.(JIAO Jiankang，JUE Wenjun. Burst failure mechanism of roadway anchorage bearing structure under dynamic load disturbance[J]. Journal of China Coal Society，2020，DOI：10.13225/j.cnki.jccs. 2020.1525.(in Chinese))
[14] 王晓卿，康红普，高富强，等. 碎石锚固中压力拱形成与锚杆作用分析[J]. 煤炭学报，2020，DOI：10.13225/j.cnki.jccs.2020. 1344.(WANG Xiaoqing，KANG Hongpu，GAO Fuqiang，et al. Analysis of pressure arch formation and rockbolt function in gravel bolting[J]. Journal of China Coal Society，2020，DOI：10.13225/ j.cnki.jccs.2020.1344.(in Chinese))
[15] 吴拥政，付玉凯，郝登云. 加锚岩体侧向冲击载荷下动力响应规律研究[J]. 岩石力学与工程学报，2020，39(10)：2 014–2 024. (WU Yongzheng，FU Yukai，HAO Dengyu. Study on dynamic response law of anchored rock mass under lateral impact loads[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(10)：2 014–2 024.(in Chinese))
[16] 邓亮，张传庆，周丽，等. 常法向刚度下锚杆杆体–树脂界面剪切力学特性试验研究[J]. 岩石力学与工程学报，2020，39(11)：2 254–2 263.(DENG Liang，ZHANG Chuanqing，ZHOU Li，et al Experimental study on shear mechanical properties of bolt-resin interfaces under constant normal stiffness[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(11)：2 254– 2 263.(in Chinese))
[17] 李丁一，徐亚军. 超前液压支架沿工作面走向承载特性研究[J].煤矿开采，2018，23(1)：5–7.(LI Dingyi，XU Yajun. Study on bearing behavior of advanced hydraulic support along woring face strike[J]. Coal Mining，2018，23(1)：5–7.(in Chinese))
[18] 王红卫，陈忠辉，杜泽超，等. 弹性薄板理论在地下采场顶板变化规律研究中的应用[J]. 岩石力学与工程学报，2006，25(增2)：3 769–3 774.(WANG Hongwei，CHEN Zhonghui，DU Zechao，et al. Application of elastic thin plate theory to change rule of roof in underground stope[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(Supp.2)：3 769–3 774.(in Chinese))
[19] 秦广鹏，蒋金泉，张培鹏，等. 硬厚岩层破断机理薄板分析及控制技术[J]. 采矿与安全工程学报，2014，31(5)：726–732.(QIN Guangpeng，JIANG Jinquan，ZHANG Peipeng，et al. Thin plate analysis of hard thick strata failure mechanism and its control technology[J]. Journal of Mining and Safety Engineering，2014，31(5)：726–732.(in Chinese))
[20] 张益东，程敬义，王晓溪，等. 大倾角仰(俯)采采场顶板破断的薄板模型分析[J]. 采矿与安全工程学报，2010，27(4)：487–493.(ZHANG Yidong，CHENG Jingyi，WANG Xiaoxi，et al. Thin plate model analysis on roof break of up-dip or down-dip mining stope[J]. Journal of Mining and Safety Engineering，2010，27(4)：487–493.(in Chinese))
[21] 刘鸿文，林建兴，曹曼玲. 板壳理论[M]. 杭州：浙江大学出版社，1987：29–33.(LIU Hongwen，LIN Jianxing，CAO Manling. Theory of plate and shell[M]. Hangzhou：Zhejiang University Press，1987：29–33.(in Chinese))
[22] 张雄. 计算动力学[M]. 北京：清华大学出版社，2015：162–176.(ZHANG Xiong. Computational dynamics[M]. Beijing：Tsinghua University Press，2015：162–176.(in Chinese))
[23] 庞福振，李海超，霍瑞东，等. 基于Jacobi-Ritz法的旋转组合结构自由振动特性分析[J]. 振动工程学报，2018，31(5)：827–836.(PANG Fuzheng，LI Haichao，HUO Ruidong，et al. Jacobi-Ritz method for analysis of free vibration characteristics of combined shells in revolution[J]. Journal of Vibration Engineering，2018，31(5)：827–836.(in Chinese))
[24] 孙立新，盛冬发. 损伤弹性薄板的弯曲[J]. 力学季刊，2018，39(1)：156–163.(SUN Lixin，SHENG Dongfa. Bending of elastic thin plates with damage[J]. Mechanics Quarterly，2018，39(1)：156–163.(in Chinese))
[25] 张毅. 时间尺度上完整非保守力学系统的Noether定理[J]. 苏州科技大学学报：自然科学版，2020，37(1)：6–11.(ZHANG Yi. Noether¢s theorem for holonomic nonconservative mechanical systems on time scales[J]. Journal of Suzhou University of Science and Technology：Natural Science，2020，37(1)：6–11.(in Chinese))
[26] LUO S K，LI Z J，PENG W，et al. A Lie symmetrical basic integral variable relation and a new conservation law for generalized Hamiltonian systems[J]. Acta Mechanica，2013，224(1)：71–84.
[27] 徐亚军. 液压支架顶梁外载作用位置理论研究与应用[J]. 煤炭科学技术，2015，43(7)：102–106.(XU Yajun. Theoretical study and application on external load function location of canopy in hydraulic powered support[J]. Coal Science and Technology，2015，43(7)：102–106.(in Chinese))
[28] 徐亚军，王国法，任怀伟. 液压支架与围岩刚度耦合理论与应用[J]. 煤炭学报，2015，40(11)：2 528–2 533.(XU Yajun，WANG Guofa，REN Huaiwei. Theory of coupling relationship between surrounding rocks and powered support[J]. Journal of China Coal Society，2015，40(11)：2 528–2 533.(in Chinese))