Blasting vibration control and damage characteristics of bedding rock slopes

Wang Zhide; Xia Yuanyou; Zhou Xiong; Xia Guobang; Yang Jinhua

doi:10.11883/1001-1455(2017)01-0027-10

Volume 37 Issue 1

Jan. 2017

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Wang Zhide, Xia Yuanyou, Zhou Xiong, Xia Guobang, Yang Jinhua. Blasting vibration control and damage characteristics of bedding rock slopes[J]. Explosion And Shock Waves, 2017, 37(1): 27-36. doi: 10.11883/1001-1455(2017)01-0027-10

Citation:

Wang Zhide, Xia Yuanyou, Zhou Xiong, Xia Guobang, Yang Jinhua. Blasting vibration control and damage characteristics of bedding rock slopes[J]. Explosion And Shock Waves, 2017, 37(1): 27-36. doi: 10.11883/1001-1455(2017)01-0027-10

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Blasting vibration control and damage characteristics of bedding rock slopes

doi: 10.11883/1001-1455(2017)01-0027-10

1.
School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, Hubei, China
2.
Yunnan Highway Development & Investment CO., LTD., Kunming 650101, Yunnan, China
3.
School of Architectural Engineering, Yunnan Jiaotong College, Kunming 650101, Yunnan, China

Received Date: 2015-10-08
Rev Recd Date: 2016-01-14
Publish Date: 2017-01-25

Abstract

Abstract

In order to understand the law of vibration propagation and the damage degree of the bedding rock slope during blasting excavation, we studied the bedding slope in Puli-Xuanwei Expressway in Yunnan Province as an example. By applying acoustic tests in combination with the monitoring vibration and sound velocities under different depths of the rock mass, we obtained the vibration velocities at different locations after blasting, and analyzed the damage range as well as the propagation and attenuation law of the vibration wave measured of different explosive doses. The results show that the vibration velocity at any point of the blasting area exhibits a corresponding relationship with the damage depth of the slope. It exhibits a linear relation for single explosion and a presents non-linear relation for repeated explosion. Assuming a decrease of 10% in the sound velocity as the damage limit and the control value of blasting, the critical velocity corresponding to single explosion is 11.54 cm/s, the damage radius is 5.57 m, and the critical velocity corresponding to repeated explosion is 24.20 cm/s, the damage radius is 7.56 m. The largest explosive dose is deduced by two ways mentioned above according to the Sadaovsk Formula.
- mechanics of explosion,
- blasting control,
- acoustic test,
- bedding rock slope,
- damage

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References(12)

References

[1]	言志信, 言浬, 江平, 等.爆破振动峰值速度预报方法探讨[J].振动与冲击, 2010, 29(5):179-182. doi: 10.3969/j.issn.1000-3835.2010.05.039 Yan Zhixin, Yan Li, Jiang Ping, et al. Prediction methods for blasting-induced ground vibration velocity[J]. Journal of Vibration and Shock, 2010, 29(5):179-182. doi: 10.3969/j.issn.1000-3835.2010.05.039
[2]	Hao H, Wu C H, Zhou Y X. Numerical analysis of blast-induced stress waves in a rock mass with anisotropic continuum damage models, part Ⅰ: Equivalent material property approach[J]. Rock Mechanics and Rock Engineering, 2002, 35(2):79-94. doi: 10.1007/s006030200012
[3]	Napier J A L, Peirce A P. The use of a multiple expansion techniques to analyze large scale fracture process and seismic recurrence effects in deep level mines[J]. International Journal of Rock Mechanics & Mining Sciences, 1997, 34(3/4):680-691.
[4]	曹孝君, 吴青山, 张继春, 等.顺层岩质边坡的爆破振动控制标准试验研究[J].岩石力学与工程学报, 2003, 22(11):1924-1928. doi: 10.3321/j.issn:1000-6915.2003.11.036 Cao Xiaojun, Wu Qingshan, Zhang Jichun, et al. Testing study on control standard of vibration for layered rock slope blasting[J]. Chinese Journal of Rock Mechanics and Engineering, 2003, 22(11):1924-1928. doi: 10.3321/j.issn:1000-6915.2003.11.036
[5]	张继春, 郭学彬, 郑爽英, 等.顺层边坡岩体的爆破振动特性试验研究[J].地下空间与工程学报, 2005, 1(7):1041-1044. http://d.old.wanfangdata.com.cn/Periodical/dxkj2005z1017 Zhang Jichun, Guo Xuebin, Zheng Shuangying, et al. Experimental study on vibration characteristics of rock mass blasting at layered slope[J]. Chinese Journal of Underground Space and Engineering, 2005, 1(7):1041-1044. http://d.old.wanfangdata.com.cn/Periodical/dxkj2005z1017
[6]	闫长斌, 徐国元, 杨飞.爆破动荷载作用下围岩累积损伤效应声波测试研究[J].岩土工程学报, 2007, 29(1):88-92. doi: 10.3321/j.issn:1000-4548.2007.01.014 Yan Changbin, Xu Guoyuan, Yang Fei. Measurement of sound waves to study cumulative damage effect on surrounding rock under blasting load[J]. Chinese Journal of Geotechnical Engineering, 2007, 29(1):88-92. doi: 10.3321/j.issn:1000-4548.2007.01.014
[7]	Li Haibo, Xia Xiang, Li Jianchun, et al. Rock damage control in bedrock blasting excavation for a nuclear power plant[J]. International Journal of Rock Mechanics & Mining Sciences, 2011, 48(2):210-218. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=7231928e8443a939770f25a126cb2143
[8]	彭德红.边坡开挖爆破的声波测试技术[J].武汉理工大学学报, 2004, 26(12):38-40. doi: 10.3321/j.issn:1671-4431.2004.12.011 Peng Dehong. Sound wave test technology for blasting excavation in side slope[J]. Journal of Wuhan University of Technology, 2004, 26(12):38-40. doi: 10.3321/j.issn:1671-4431.2004.12.011
[9]	朱传云, 喻胜春.爆破引起岩体损伤的判别方法研究[J].工程爆破, 2001, 7(1):12-16. doi: 10.3969/j.issn.1006-7051.2001.01.003 Zhu Chuanyun, Yu Shengchun. Study on the discriminance of rock mass damage induced by blasting[J]. Engineering Blasting, 2001, 7(1):12-16. doi: 10.3969/j.issn.1006-7051.2001.01.003
[10]	闫长斌.基于声速变化的岩体爆破累积损伤效应[J].岩土力学, 2010, 31(增1):187-192. http://d.old.wanfangdata.com.cn/Periodical/ytlx2010z1030 Yan Changbin. Blasting damage cumulative effect of rock mass based on sound velocity variation[J]. Rock and Soil Mechanics, 2010, 31(Suppl 1):187-192. http://d.old.wanfangdata.com.cn/Periodical/ytlx2010z1030
[11]	颜峰, 姜福兴.爆炸冲击载荷作用下岩石的损伤实验[J].爆炸与冲击, 2009, 29(3):275-280. doi: 10.3321/j.issn:1001-1455.2009.03.009 Yan Feng, Jiang Fuxing. Experiment on rock damage under blasting load[J]. Explosion and Shock Waves, 2009, 29(3):275-280. doi: 10.3321/j.issn:1001-1455.2009.03.009
[12]	唐海, 李海波.反映高程放大效应的爆破振动公式研究[J].岩土力学, 2011, 32(3):820-824. doi: 10.3969/j.issn.1000-7598.2011.03.030 Tang Hai, Li Haibo. Study of blasting vibration formula of reflecting amplification effect on elevation[J]. Rock and Soil Mechanics, 2011, 32(3):820-824. doi: 10.3969/j.issn.1000-7598.2011.03.030