钻爆开挖条件下岩体临界破碎状态的损伤阈值统计研究

doi:10.13722/j.cnki.jrme.2015.0851

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

Download: PDF (487 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract It is important to investigate the damage threshold of critical broken rock mass for the classification of different broken states and the scope of excavated zone in rock blasting. The broken states of the remaining rock mass under blasting loading were analyzed through the study of fragmentation process and the mechanism of rock mass breakage. The idea that the interface between the remaining rock mass and the excavated rock mass is in a critical broken state was put forward. According to the rock damage theory，the damage variable combined with the acoustic velocity in rock was used to indicate the broken states of rock mass. Rock damage was divided into the initial damage and the blast induced damage. Rock broken states were validated with a large quantity of acoustic tests in the blasting excavation zone at Baihetan power station，and the results showed that the damage variable of critical broken rock mass was about 0.8. Finally，some more engineering experiments were collected to ascertain that the statistic damage threshold was in the range of 0.75–0.85.

Key words： rock mechanism critical broken rock mass acoustic tests damage threshold

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	LIU Liang1
	2
	LU Wenbo1
	2
	CHEN Ming1
	2
	YAN Peng1
	2
	WANG Gaohui1
	2

Cite this article:

LIU Liang1,2,LU Wenbo1, et al. Statistic damage threshold of critical broken rock mass under blasting load[J]. , 2016, 35(6): 1133-1140.

URL:

http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2015.0851 OR http://www.rockmech.org/EN/Y2016/V35/I6/1133

[9]	蔡明，赵星光，KAISER P K. 论完整岩体的现场强度[J]. 岩石力学与工程学报，2014，33(1)：1-13.(CAI Ming，ZHAO Xingguang，KAISER P K. On field strength of massive rocks[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(1)：1-13.(in Chinese))
[11]	王伟，王奇智，石露，等. 爆炸荷载下岩石I型微裂纹动态扩展研究[J]. 岩石力学与工程学报，2015，33(6)：1 194-1 202. (WANG Wei，WANG Qizhi，SHI Lu，et al. Dynamic extension of mode I microcracks of rocks under blasting loading[J]. Chinese Journal of Rock Mechanics and Engineering，2015，33(6)：1 194-1 202.(in Chinese)) " target="_blank">
[12]	赵明阶，吴德伦. 工程岩体的超声波分类及强度预测[J]. 岩石力学与工程学报，2000，19(1)：89-92.(ZHAO Mingjie，WU Delun. The ultrasonic of identification of rock mass classification and rock mass strength prediction[J]. Chinese Journal of Rock Mechanics and Engineering，2000，19(1)：89-92.(in Chinese))
[14]	聂运钧，肖国强，王法刚. 声波法在三峡坝基岩石力学试验中的应用[J]. 岩土力学，2003，24(增1)：175-177.(NIE Yunjun，XIAO Guoqiang，WANG Fagang. Application of acoustic wave method to rock mechanical tests in Three Gorges Project dam area[J]. Rock and Soil Mechanics，2003，24(Supp.1)：175-177.(in Chinese)) " target="_blank">
[16]	李夕兵. 岩石爆破动力学基础[M]. 北京：煤炭工业出版社，1993：137-140.(LI Xibing. Rock blasting Dynamics fundamentals[M]. Beijing：Coal Industry Publishing House，1993：137-140.(in Chinese)) " target="_blank">
[17]	NING Y，YANG J，AN X，et al. Modelling rock fracturing and blast-induced rock mass failure via advanced discretisation within the discontinuous deformation analysis framework[J]. Computers and Geotechnics，2011，38(1)：40-49.
[2]	HUSTRULID W A. Blasting principles for open pit mining：general design concepts[M]. Boca Raton：CRC Press/Balkema，1999：293-300. " target="_blank">
[10]	胡荣，朱哲明，胡哲源，等. 爆炸动载荷下裂纹扩展规律的实验研究[J]. 岩石力学与工程学报，2013，32(7)：1 476-1 481.(HU Rong，ZHU Zheming，HU Zheyuan，et al. Experimental study of regularity of crack propagation under blasting dynamic loads[J]. Chinese Journal of Rock Mechanics and Engineering，2013，32(7)：1 476-1 481.(in Chinese)) " target="_blank">
[13]	赵明阶，徐蓉. 岩石损伤特性与强度的超声波速研究[J]. 岩土工程学报，2000，22(6)：720-722.(ZHAO Mingjie，XU Rong. The rock damage and strength study based on ultrasonic velocity[J]. Chinese Journal of Geotechnical Engineering，2000，22(6)：720-722.(in Chinese))
[24]	LEMAITRE J. 损伤力学教程[M]. 北京：科学出版社，1996：4-13.(LEMAITRE J. A course on damage mechanics[M]. Translated by Beijing：Science Press，1996：4-13.(in Chinese)) " target="_blank">
[25]	GRADY D E，KIPP M E. Continuum modeling of explosive fracture in oil shale[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1980，17(3)：147-157. " target="_blank">
[27]	SPATHIS A T，BLAIR D P，GRANT J R. Blast damage assessment of rock by using the high frequency crosshole seismic method[C]// Proceedings of the 2nd International Symposium on Rock Fragmentation. [S. l.]：Keystone Co.，1987：488-496. " target="_blank">
[29]	MATHIAS J. Determination of the damaged zone in quarries，related to aggregate production[J]. Bulletin of Engineering Geology and the Environment，2011，60(2)：157-166. " target="_blank">
[6]	钱七虎. 岩石爆炸动力学的若干进展[J]. 岩石力学与工程学报，2009，28(10)：1 945-1 968.(QIAN Qihu. Some advances in rock blasting dynamics[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(10)：1 945-1 968.(in Chinese)) " target="_blank">
[18]	MA G W，AN X M. Numerical simulation of blasting-induced rock fractures[J]. International Journal of Rock Mechanics and Mining Sciences，2008，45(6)：966-975.
[32]	冯国栋. 溪洛渡水电站声波岩体分类初探[J]. 水电站设计，1999，15(2)：108-110.(FENG Guodong. Classification of rock mass by acoustic velocity in Xiluodu dam[J]. Electromechanical Technology of Hydropower Station，1999，15(2)：108-110.(in Chinese)) " target="_blank">
[3]	CHO S H. Dynamic fracture process analysis of rock and its application to fragmentation control in blasting[Ph. D. Thesis][D]. Hokkaido，Japan：Hokkaido University，2003. " target="_blank">
[23]	SINGH S P. Prediction and determination of explosive induced damage[C]// Proceedings of the 4th International Symposium on Rock Fragmentation by Blasting. [S. l.]：[s. n.]，1993：183-192. " target="_blank">
[15]	夏祥，李海波，张大岩，等. 红沿河核电站基岩爆破的控制标准[J]. 爆炸与冲击，2010，30(1)：27-32.(XIA Xiang，LI Haibo，ZHANG Dayan，et al. Safety threshold of blasting-induced rock vibration for Honyanhe nuclear power plant[J]. Explosion and Shock Waves，2010，30(1)：27-32.(in Chinese)) " target="_blank">
[20]	王媛媛，孙强，薛雷，等. 岩石脆性临界破坏的波速特征分析[J]. 岩土力学，2014，35(2)：529-534.(WANG Yuanyuan，SUN Qiang，XUE Lei，et al. Analysis of wave velocity characteristics of critical rock brittle failure[J]. Rock and Soil Mechanics，2014，35(2)：529-534.(in Chinese)) " target="_blank">
[21]	涂杰楠，孙强，姜志海，等. 岩石脆性临界破坏视电阻率变化与应力比[J]. 煤炭学报，2013，38(2)：221-225.(TU Jienan，SUN Qiang，JIANG Zhihai，et al. Analysis on rock resistivity variation with stress ratio at the state of critical brittle failure[J]. Journal of China Coal Society，2013，38(2)：221-225.(in Chinese))
[1]	JIMENO E L，JIMINO C L，CARCEDO A. Drilling and blasting of rocks[M]. Boca Raton：CRC Press，1995：11-18. " target="_blank">
[4]	CHO S H，NAKAMURA Y，KANEKO K. Dynamic fracture process analysis of rock subjected to stress wave and gas pressurization[J]. International Journal of Rock Mechanics and Mining Sciences，2004，41(3)：433-440.
[5]	CHO S H，KANEKO K. Rock fragmentation control in blasting[J]. Materials Transactions，2004，45(5)：1 722-1 730. " target="_blank">
[7]	冷振东，卢文波，陈明，等. 岩石钻孔爆破粉碎区计算模型的改进[J]. 爆炸与冲击，2015，35(1)：101-107.(LENG Zhendong，LU Wenbo，CHEN Ming，et al. Improved calculation model for the size of crushed zone around blasthole[J]. Explosion and Shock Waves，2015，35(1)：101-107.(in Chinese)) " target="_blank">
[8]	胡英国，卢文波，金旭浩，等. 岩石高边坡开挖爆破动力损伤的数值仿真[J]. 岩石力学与工程学报，2012，31(11)：2 204-2 213.(HU Yingguo，LU Wenbo，JIN Xuhao，et al. Numerical simulation for excavation blasting dynamic damage of rock high slope[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(11)：2 204-2 213.(in Chinese)) " target="_blank">
[19]	孙强，薛雷，朱术云. 砂岩脆性临界破坏声发射信息应力比分析[J]. 岩土力学，2012，33(9)：2 575-2 580.(SUN Qiang，XUE Lei，ZHU Shuyun. Analysis of critical acoustic emission information of sandstone brittle failure with stress ratio[J]. Rock and Soil Mechanics，2012，33(9)：2 575-2 580.(in Chinese)) " target="_blank">
[22]	殷志强，李夕兵，尹土兵，等. 高应力岩石围压卸载后动力扰动的临界破坏特性[J]. 岩石力学与工程学报，2015，31(7)：1 355-1 362. (YIN Zhiqiang，LI Xibing，YIN Tubing，et al. Critical failure characteristics of high stress rock induced by impact disturbance under confining pressure unloading[J]. Chinese Journal of Rock Mechanics and Engineering，2015，31(7)：1 355-1 362. (in Chinese)) " target="_blank">
[26]	TAYLOR L M，CHEN E P，KUSZMAUL J S. Microcrack-induced damage accumulation in brittle rock under dynamic loading[J]. Computer Methods in Applied Mechanics and Engineering，1986，55(3)：301-320. " target="_blank">
[28]	YANG R，BAWDEN W F，KATSABANIS P D. A new constitutive model for blast damage[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1996，33(3)：245-254. " target="_blank">
[30]	GORBUNOV A A. Seismoacoustic evaluation of the effect of blasting on rocks[J]. Hydrotechnical Construction，1974，8(1)：24-28. " target="_blank">
[31]	龙亦安. 声波测井vp值在水电工程勘测中的应用——以澧水鱼潭水电站坝址为例[J]. 人民长江，1989，(2)：25-31.(LONG Yian. Application of the acoustic velocity vp in hydropower project survey[J]. Yangtze River，1989，(2)：25-31.(in Chinese)) " target="_blank">