在顶爆作用下锚杆轴力分布规律研究

doi:10.13722/j.cnki.jrme.2014.s2.066

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Abstract In order to design new rock bolts improving explosion resisting capacity of tunnels reinforced by rock bolts，the axial force distribution under top explosion was studied by the model test and numerical analysis. Based on the model test，rock bolts of vault bore pressure and tension，according to axial stress distribution along the bolts on vault，the peak tension and peak pressure increased firstly，and then decreased，and the maximal peak pressure was near to anchorage，while the maximal peak tension was near to anchor head. According to numerical analysis，at the same time，the pressure had no difference significantly except that the pressure of anchorage and anchor head was small. The tension of three bolts on vault from anchorage to anchor top increased firstly，and then decreased，and the maximal peak tension was near to anchor top. The pressure and tension of other bolts also had no difference significantly，whose strength was smaller than that of vault.

Key words： numerical analysis underground engineering top explosion rock bolts tunnels axial force

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	Articles by authors
	WANG Guangyong1
	2
	GU Jincai3
	ZHANG Xiangyang3
	SHAN Furong1
	ZHOU Jianwei1

Cite this article:

WANG Guangyong1,2,GU Jincai3, et al. RESEARCH ON AXIAL FORCE DISTRIBUTION OF ROCK BOLTS UNDER TOP EXPLOSION[J]. , 2014, 33(S2): 3919-3923.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.s2.066 OR https://rockmech.whrsm.ac.cn/EN/Y2014/V33/IS2/3919

[1]	张向阳，顾金才，沈俊，等.爆炸荷载作用下洞室变形与锚杆受力分析[J].地下空间与工程学报，2012，8(4)：678-684.(ZHANG Xiangyang，GU Jincai，SHEN Jun，et al. Tunnel deformation and bolt bearing state under explosion load[J]. Chinese Journal of Underground Space and Engineering，2012，8(4)：678-684.(in Chinese))
[2]	杨自友，顾金才，陈安敏，等. 爆炸波作用下锚杆间距对围岩加固效果影响的模型试验研究[J]. 岩石力学与工程学报，2008，27(4)：757-764.(YANG Ziyou，GU Jincai，CHEN Anmin，et al. Model experiment study on the influence of reinforcement effects of intervals of rock bolts in wall rock under the effect of explosive waves[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(4)：757-764.(in Chinese))
[3]	王光勇，顾金才，陈安敏，等.端部消波和加密锚杆支护洞室抗爆能力模型试验研究[J].岩石力学与工程学报，2010，29(1)：51-58. (WANG Guangyong，GU Jincai，CHEN Anmin，et al. Model test research on anti-explosion capacity of underground openings with end weakened by holes and anchor top reinforced by dense rock bolts[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(1)：51-58.(in Chinese))
[4]	张亮亮. 抗爆洞室不同部位预应力锚索受力特征研究[博士学位论文][D].武汉：武汉理工大学，2009.(ZHANG Liangliang. Study on stress character of prestressed anchorage in different regional antiknock chamber effected[Ph. D. Thesis][D]. Wuhan：Wuhan University of Technology，2009.(in Chinese))
[5]	李宁，张承客，周钟. 边坡爆破开挖对邻近已有洞室影响研究[J]. 岩石力学与工程学报，2012，31(增2)：3471-3 477.(LI Ning，ZHANG Chengke，ZHOU Zhong. Influence research of slope blasting excavation on adjacent existed tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(Supp.2)：3471-3477.(in Chinese))
[6]	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)：1540-1546.(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)：1540-1546.(in Chinese))
[7]	李世民，韩省亮，曾宪明，等. 锚固类结构抗爆性能研究进展[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))
[8]	薛亚东，张世平，康天合. 回采巷道锚杆动载响应的数值分析[J]. 岩石力学与工程学报，2003，22(11)：1 903-1 906.(XUE Yadong，ZHANG Shiping，KANG Tianhe. Numerical analysis of dynamic response of rock bolts in mining roadways[J]. Chinese Journal of Rock Mechanics and Engineering，2003，22(11)：1 903-1 906.(in Chinese))
[9]	鞠杨，夏昌敬，谢和平，等. 爆炸荷载作用下煤岩巷道底板破坏的数值分析[J]. 岩石力学与工程学报，2004，23(21)：3 664-3 668. (JU Yang，XIA Changjing，XIE Heping，et al. Numerical analysis of rupture of subfloor of coal mine tunnel subjected to blasting loads[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(21)：3 664-3 668.(in Chinese))
[10]	ORTLEPP W D，STACEY T R. Performance of tunnel support under large deformation static and dynamic loading[J]. Tunnelling and Underground Space Technology，1998，13(1)：15-21.
[11]	GISLE S，ARNE M. The influence of blasting on grouted rock bolts[J]. Tunnelling and Underground Space Technology，1998，13(1)：65-70.
[12]	TANNANT D D，BRUMMER R K，YI X. Rockbolt behavior under dynamic loading field tests and modeling[J]. International Journal of Rock Mechanics and Mining Science and Geomechanics Abstracts，1995，32(6)：537-550.
[13]	ANDERS A. Dynamic testing of steel for a new type of energy absorbing rock bolt[J]. Journal of Constructional Steel Research，2006，62(5)：501-512.
[14]	ZHANG C S，ZOU D H，MADENGA V. Numerical simulation of wave propagation in grouted rock bolts and the effects of mesh density and wave frequency[J]. International Journal of Rock Mechanics and Mining Sciences，2006，43(4)：634-639.