一种新型J释能锚杆力学作用机制及其动力冲击实验研究

doi:10.13722/j.cnki.jrme.2019.0663

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Abstract On the basis of dynamic disaster characteristics induced by deep mining and the advantages and disadvantages of energy-releasing bolts，a novel kind of J energy-releasing bolts consisting of anchorage(damping) module，deformation module，blending section and anchorage section was developed，and static pullout model and dynamic impact consititive model of J energy-releasing bolts were established. The dynamic impact consititive model consists of spring and damping elements in parallel. Given an initial dynamic impact load，the oscillation amplitude of J energy-releasing bolts will quickly attenuate along the bolt axial impact direction with increasing the damping ratio，that is，the greater the damping effect of J energy-releasing bolts，the more quickly the dynamic impact energy releases. The static pullout test and the dynamic impact test of J energy-releasing bolts were done in the Candian CANMET laboratory. The experimental results show that the static pullout load is greater than 190 kN，and that the bolt can not only allow large sliding displacement but also provide a large constant anchorage force under static pullout condition. Under multiple dynamic impact loading condition，the peak load of J energy-releasing bolts exceeds 250 kN every time. The release energy of J energy-releasing bolts exceeds 19.3 kJ under one time dynamic impact condition and the total energy release capacity reaches 46.5 kJ，which shows that J energy-releasing bolts can bear multiple dynamic impact loading and the energy release capacity is stable. Due to the objective existence of joints in rock mass，the energy-release bolted rock mass can generate dilatation and tensile failure in the joint surface of rock mass under dynamic impact condition such as rockburst etc.，but the support structure system in the surface of the tunnelling(stope) will not be damaged by the dynamic impact，which can effectively release the kinetic energy accumulated in the rock mass induced by high magnitude rockburst. The research can provide new support idea for preventing and controlling the mine dynamic hazards induced by deep mining.

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mining engineering deep mining J energy-releasing bolts dynamic hazards static pulling test
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	ZHAO Xingdong
	ZHU Qiankun
	NIU Jiaan
	YANG Xiaoming
	ZHANG Shujing
	CHEN Yumin

Cite this article:

ZHAO Xingdong,ZHU Qiankun,NIU Jiaan, et al. Mechanical mechanism analyses and dynamic impact experimental tests of a kind of novel J energy-releasing bolts#br#[J]. , 2020, 39(1): 13-21.

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http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2019.0663 OR http://www.rockmech.org/EN/Y2020/V39/I1/13

[7]	JAGER A J，WOLNO L Z，HENDERSON N B. New developments in the design and support of tunnels under high stress[C]// Proceedings of International Deep Mining Conference：Technical Challenges in Deep Level Mining. Johannesburg：South African Institute of Mining and Metallurgy，1990：1 155-1 172.
[9]	冯帆，李夕兵，李地元，等. 正交各向异性板裂屈曲岩爆机制与控制对策研究[J]. 岩土工程学报，2017，39(7)：1 302-1 311.(FENG Fan，LI Xibing，LI Diyuan，et al. Mechanism and control strategy of buckling rockbursts of orthotropic slab[J]. Chinese Journal of Geotechnical Engineering，2017，39(7)：1 302-1 311. (in Chinese))
[10]	张传庆，俞缙，陈珺，等. 地下工程围岩潜在岩爆问题评估方法[J]. 岩土力学，2016，37(增1)：341-349.(ZHANG Chuanqing，YU Jin，CHEN Jun，et al. Evaluation method for potential rockburst in underground engineering[J]. Rock and Soil Mechanics，2016，37(Supp.1)：341-349 (in Chinese))
[16]	VARDEN R，LACHENICHT R，PLAYER J，et al. Development and implementation of the garford dynamic bolt at the Kanowna Belle Mine[C]// The 10th Underground Operators′ Conference. Launceston，Australia：[s. n.]，2008：19.
[18]	LI C C. Disturbance of mining operations to a deep underground workshop[J]. Tunnelling and Underground Space Technology，2005，21(1)：1-8.
[19]	LI C 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.
[1]	钱七虎. 深部岩体工程响应的特征科学现象及“深部”的界定[J]. 东华理工学院学报，2004，27(1)：1-5.(QIAN Qihu. The characteristic scientific phenomena of engineering response to deep rock mass and the implication of deepness[J]. Journal of East China Institute of Technology，2004，27(1)：1-5.(in Chinese))
[2]	李浪，蒋海明，陈显波，等. 应变型岩爆模型实验及其力学机制研究[J]. 岩石力学与工程学报，2018，37(12)：2 733-2 741.(LI Lang，JIANG Haiming，CHEN Xianbo，et al. Model test study on the mechanical mechanism of strain rockbursts[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(12)：2 733-2 741.(in Chinese))
[3]	徐荣超，周辉，房敬年，等. 深埋隧洞板裂屈曲岩爆支护原则与关键技术[J]. 华中科技大学学报：自然科学版，2018，46(8)：110-115.(XU Rongchao，ZHOU Hui，FANG Jingnian，et al. Support principles and key technology of slab buckling rock burst in deep tunnel[J]. Journal of Huazhong University of Science and Technology：Nature Science，2018，46(8)：110-115.(in Chinese))
[5]	刘宁，张春生，褚卫江，等. 深埋隧洞岩爆风险尺寸效应问题探讨[J]. 岩石力学与工程学报，2017，36(10)：2 514-2 521.(LIU Ning，ZHANG Chunsheng，CHU Weijiang，et al. Discussion on size effect of rock burst risk in deep buried tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(10)：2 514-2 521.(in Chinese))
[11]	翁磊，李夕兵，周子龙，等. 屈曲型岩爆的发生机制及其时效性研究[J]. 采矿与安全工程学报，2016，33(1)：172-178.(WENG Lei，LI Xibing，ZHOU Zilong，et al. Occurrence mechanism and time-dependency effect of buckling rock burst[J]. Journal of Mining and Safety Engineering，2016，33(1)：172-178.(in Chinese))
[12]	ORTLEPP W D. Invited lecture：The design of support for the containment of rockburst damage in tunnels-An engineering approach[C]// Proceedings of the International Symposium on Rock Support. Sudbury，Canada：[s. n.]，1992：593-609.
[14]	PLAYER R，VILLAESCUSA E，THOMPSON A G. Dynamic testing of friction rock stabilisers[C]// ROCKENG09：Proceedings of the 3rd CANUS Rock Mechanics Symposium. Toronto，Canada：[s. n.]，2009：123-124.
[20]	LI C C，DOUCET C，CARLISLE S. Dynamic tests of a new type of energy absorbing rock bolt-the D bolt[C]// 3rd Canada-US Rock Mechanics Symposium. Toronto，Canada：[s. n.]，2009：199-200.
[21]	MERIAM J L，KRAIGE L G. Engineering mechanics：dynamics(7th edition SI version)[M]. [S. l.]：John Wiley and Sons，Inc.，2012：583-590.
[4]	谢良涛，严鹏，卢文波，等. 不同开挖方式下深部岩体能量积聚特性[J]. 华中科技大学学报：自然科学版，2018，46(1)：120-125.(XIE Liangtao，YAN Peng，LU Wenbo，et al. Energy accumulation properties of deep rock under different excavation methods[J]. Journal of Huazhong University of Science and Technology：Nature Science，2018，46(1)：120-125.(in Chinese))
[6]	ORTLEPP W D，STACEY T R. The need for yielding support in rockburst conditions，and realistic testing of rockbolts[C]// Proceedings of International Workshop on Applied Rockburst Researc. Santiago，Chile：[s. n.]，1994：249-259.
[8]	韩光，崔铁军，王来贵. 不同采深及倾角条件下煤(岩)体冲击地压模拟研究[J]. 采矿与安全工程学报，2018，35(2)：308-315.(HAN Guang，CUI Tiejun，WANG Laigui. Research on coal (rock) burst process simulation under different mining depth and dip angle[J]. Journal of Mining and Safety Engineering，2018，35(2)：308-315.(in Chinese))
[13]	JAGER A J. Two new support units for the control of rockburst damage[C]// Proceedings of the International Symposium on Rock Support. Sudbury：[s. n.]，1992：621-631.
[15]	CHARETTE F. Performance of Swellex rock bolts under dynamic loading conditions[C]// Second International Seminar on Deep and High Stress Mining，The South African Institute of Mining and Metallurgy. Johannesburg，South Africa：[s. n.]，2004：95-106.
[17]	CHARETTE F，PLOUFFE M. Roofex - results of laboratory testing of a new concept of yieldable tendon[C]// Proceedings of the 4th International Seminar on Deep and High Stress Mining. Perth：Australian Centre for Geomechanics，2007：395-404.