锚固结构爆破振动规律与损伤的模型试验

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Abstract In this paper，cement mortar and glass fiber reinforced plastics are used in physical model test to simulate the rock and anchor bolt，respectively. Physical model tests are performed according to similarity law of materials. Vibration rule and damage of different sections of anchorage structure are studied under cut-hole blasting in combination of test，theory and practice. The vibration strain signals are implemented by wavelet packets analysis. The results show that：(1) Under the blasting loading，vibration rules of the anchored and free sections(a row of anchor bolts in the vicinity of working face) are different in frequency，amplitude，duration and waveform. Vibration energy of the row of anchor bolts is basically large，but the energy is distributed randomly with a wide frequency band. (2) With increase of the distance from the working face，amplitude and frequency of vibration strain wave decrease rapidly on anchored and free sections. Vibration energy concentrates in narrow frequency band，but with longer duration. Based on different failure patterns，suggestions are proposed to prevent structure from damage by controlling amplitude，main frequency band and duration of vibration. In addition，anti-dynamic performances of structure should be improved.

Key words： blasting mechanics anchorage structure vibration strain wave main frequency band damage

Received: 11 January 2013

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https://rockmech.whrsm.ac.cn/EN/Y2013/V32/I6/1257

[1]	OTUONYE F O. Response of grouted roof bolts to blast loading[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1988，25(5)：345-349. " target="_blank">
[2]	ZHOU Y X，JENSSEN A. Internal separation distances for underground explosives storage in hard rock[J]. Tunnelling and Underground Space Technology，2009，24(2)：119-125.
[3]	TANNANT D D，BRUMMER R K，YI X. Rock behaviour under dynamic loading：field tests and modelling[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1995，32(6)：537-550. " target="_blank">
[4]	易长平，卢文波. 爆破振动对砂浆锚杆的影响研究[J]. 岩土力学，2006，27(8)：1 312-1 316.(YI Changping，LU Wenbo. Research on influence of blasting vibration on grouted rockbolt[J]. Rock and Soil Mechanics，2006，27(8)：1 312-1 316.(in Chinese))
[5]	王浩，陈峰，柳墩利，等. 动荷载作用下边坡锚固系统合理设计探讨[J]. 防灾减灾工程学报，2009，29(6)：690-695.(WANG Hao，CHEN Feng，LIU Dunli，et al. Discuss on reasonable design of slope anchor system under dynamic loads[J]. Journal of Disaster Prevention and Mitigation Engineering，2009，29(6)：690-695.(in Chinese))
[6]	陆遐龄. 岩石高边坡爆破开挖对锚固设施的影响[J]. 爆破，2000，17(增1)：147-151.(LU Xialing. Influence of rock high slope explosive excavation on anchored installations[J]. Blasting，2000，17(Supp.1)：147-151.(in Chinese)) " target="_blank">
[7]	郭作纯，邓志深. 锚索预应力损失的影响因素及对策[J]. 水运工程，2006，(7)：16-17.(GUO Zuochun，DENG Zhishen. Factor influencing loss of anchor chain?s prestress and countermeasures[J]. Port and Waterway Engineering，2006，(7)：16-17.(in Chinese))
[8]	候忠杰. 爆破对树脂锚杆载荷的影响[J]. 矿山压力与顶板管理，1997，14(1)：36-39.(HOU Zhongjie. Influence of blasting on resin rockbolt loading[J]. Ground Pressure and Strata Control，1997，14(1)：36-39.(in Chinese))
[9]	GISLE S，ARNE M. The influence of blasting on grouted rockbolts[J]. Tunnelling and Underground Space Technology，1998，13(1)：65-70. " target="_blank">
[10]	李世民，韩省亮，曾宪明，等. 锚固类结构抗爆性能研究与进展[J]. 岩石力学与工程学报，2008，27(增2)：3 553-3 562. (LI Shimin，HAN Shengliang，ZENG Xianming，et al. Research progress of explosion-resistance behavior of anchorage type of structure[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(Supp.2)： 3 553-3 562.(in Chinese)) " target="_blank">
[11]	顾金才，陈安敏，徐景茂，等. 在爆炸荷载条件下锚固洞室破坏形态对比试验研究[J]. 岩石力学与工程学报，2008，27(7)：1 315- 1 320.(GU Jincai，CHEN Anmin，XU Jingmao，et al. Model test study of failure patterns of anchored tunnel subjected to explosion load[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(7)： 1 315-1 320.(in Chinese)) " target="_blank">
[12]	王光勇，顾金才，陈安敏，等. 顶爆作用下锚杆破坏形式及破坏机制模型试验研究[J]. 岩石力学与工程学报，2012，31(1)：27-31. (WANG Guangyong，GU Jincai，CHEN Anmin，et al. Model test research on failure forms and failure mechanism of anchor bolts under top explosion[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(1)：27-31.(in Chinese))
[13]	单仁亮，周纪军，夏宇，等. 爆炸荷载下锚杆动态响应试验研究[J]. 岩石力学与工程学报，2011，30(8)：1 540-1 546.(SHAN Renliang，ZHOU Jijun，XIA Yu，et al. Experimental investigation on dynamic response of rockbolt under blasting load[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(8)：1 540-1 546.(in Chinese))
[14]	郭学斌，肖正学，张继春. 爆破振动频率特性的测试与研究[J]. 中国矿业，2004，13(9)：68-71.(GUO Xuebin，XIAO Zhengxue，ZHANG Jichun. Testing and study of frequency specific property of blasting vibration[J]. China Ming Magazine，2004，13(9)：68-71.(in Chinese))
[15]	卢文波，李海波，陈明，等. 水电工程爆破振动安全判据及应用中的几个关键问题[J]. 岩石力学与工程学报，2009，28(8)：1 513-1 520.(LU Wenbo，LI Haibo，CHEN Ming，et al. Safety criteria of blasting vibration in hydropower engineering and several key problems in their applications[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(8)：1 513-1 520.(in Chinese))
[16]	YU T R，VONGPAISAL S. New blast damage criteria for underground blasting[J]. CIM Bulletin，1996，89(3)：139-145. " target="_blank">
[17]	MOJITABAI N，BEATTI S G. Empirical approach to prediction of damage in bench blasting[J]. Transaction of the Institution of Mining and Metallurgy Section A，1996，105(A)：75-80. " target="_blank">
[18]	DOWDING C H. Estimating earthquake damage from explosion testing of full-scale tunnels[J]. Advanced in Tunnelling Technology and Subsurface Use，1984，4(3)：113-117. " target="_blank">
[19]	林大超，白春华. 爆炸地震效应[M]. 北京：地质出版社，2007：63-67.(LIN Dachao，BAI Chunhua. Seismic effect of explosions[M]. Beijing：Geological Publishing House，2007：63-67.(in Chinese)) " target="_blank">
[20]	阳生权，廖先葵，刘宝琛. 爆破地震安全判据的缺陷与改进[J]. 爆炸与冲击，2001，21(3)：223-228.(YANG Shengquan，LIAO Xiankui，LIU Baochen. Default of the judging standard of blasting vibration safety abstract[J]. Explosion and Shock Waves，2001，21(3)：223-228.(in Chinese))