水工岩石高边坡爆破振动安全控制标准的确定研究

doi:10.13722/j.cnki.jrme.2015.1739

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (372 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要确定合理的岩石高边坡爆破振动安全标准是西南地区水电工程拱坝建基面爆破开挖控制的关键。基于目前广泛采用上层台阶的爆破振动速度阈值作为爆破振动安全标准的现状，分析水电工程岩石高边坡爆破振动安全标准确定的两大依据，其一为上层台阶岩体本身的允许振动速度，其二控制当前爆破梯段保留岩体的损伤深度，建立的上层台阶爆破振动速度阈值；结果表明，现采用的控制标准明显低于边坡自身的爆破损伤允许振动速度，其确定的核心依据是控制当层梯段保留岩体的损伤深度。基于应力波的衰减机制，从理论角度给出岩石高边坡爆破安全标准确定的数学描述，结果表明振动安全标准的确定与坝肩槽允许开挖损伤深度、台阶高度均密切相关，同时由于径向应力与环向应力是爆破损伤区形成的主要原因，爆破安全标准的确定应具有方向性，以水平径向与水平切向的振动速度作为控制标准更为合理。针对岩石高边坡爆破振动安全控制标准的应用，分析上层台阶马道附近的爆破振动特性，结果表明爆破振动存在局部放大的特征；建议并验证岩石高边坡爆破振动测试方法，当采用爆破振动安全标准判别当次爆破开挖的爆破响应时，宜将爆破监测点布置在马道内侧。研究结果期望为岩石高边坡的爆破开挖安全控制提供参考。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	胡英国1
	吴新霞1
	赵根1
	刘美山1
	李鹏1
	卢文波2

关键词 ：岩石力学, 岩石高边坡, 爆破振动, 控制标准

Abstract：Determining the reasonable safety standard for high rock slopes under blasting vibration is one of the keys in the excavation control of foundation surface of arch dams in the Southwest of China. Currently，the peck particle velocity of the last bench is used as the control standard. On this basis，the determination of control standard for high rock slopes was analyzed. The formation of blasting damage zone was investigated. The radial and tangential stresses are the main factors of the blasting damage. Therefore，the directions should be considered in the determination of blasting safety control standard. The velocity in horizontal radial and tangential directions used as the control standard is more reasonable. The distribution characteristics of the blasting vibration around the berm was analyzed. The characteristics of the local amplification was found. A test approach of blasting vibration was proposed. When the blasting vibration control standard is used to distinguish the response of the high rock slopes，the test points should be fixed on the inside of the berm. If the most adverse effect of berm of the last bench is the target，forever，the test points must be fixed on the outside of the berm.

Key words： rock mechanics high rock slopes blasting vibration control standard

引用本文:

胡英国1，吴新霞1，赵根1，刘美山1，李鹏1，卢文波2. 水工岩石高边坡爆破振动安全控制标准的确定研究[J]. 岩石力学与工程学报, 2016, 35(11): 2208-2216.
HU Yingguo1，WU Xinxia1，ZHAO Gen1，LIU Meishan1，LI Peng1，LU Wenbo2. Determination of safety control standard for high rock slopes under blasting vibration. , 2016, 35(11): 2208-2216.

链接本文:

http://rockmech.org/CN/10.13722/j.cnki.jrme.2015.1739 或 http://rockmech.org/CN/Y2016/V35/I11/2208

[1]	JAEGER J C，COOK N G W，ZIMMERMAN R W. Fundamentals of rock mechanics[M]. 3rd. ed. [S.l.]：Wiley-Blackwell，1979：3-30. " target="_blank">
[8]	MCANUFF A L. Environmental guidelines for maring blasting[C]// The Second International Conference on Engineering Blasting Technique. Kunming：[s.n.]，1995：498-501. " target="_blank">
[6]	焦永斌. 爆破地震安全评定标准初探[J]. 爆破，1995，12(3)：45-47.(JIAO Yongbin. Discussion on the security evaluation criteria under blast-induced vibration[J]. Blasting，1995，12(3)：45-47.(in Chinese))
[16]	BAUER A，CALDER P N. Open pit and blast seminar[R]. Kingston，Ontario，Canada：Mining Engineering Department，Queens University，1978. " target="_blank">
[5]	FANG H Y，KOERNER R M，SUTHERLAND H. Instrumentation and monitoring criteria to determine structural response from blasting[C]// Proceedings of the Second Conference on Explosives and Blasting Techniques. Louisville，Kentucky：[s.n.]，1976：148-154. " target="_blank">
[7]	卢文波. 三峡工程临时船闸与升船机开挖中的爆破方案优化和爆破振动控制[J]. 岩石力学与工程学报，1999，18(5)：497-502.(LU Wenbo. Optimization of blasting procedure and vibration control during excavation of temporary ship lock and ship lift in three gorges project[J]. Chinese Journal of Rock Mechanics and Engineering，1999，18(5)：497-502.(in Chinese))
[9]	DOWDING C H. Suggested method for blast vibration monitoring[J]. International Journal of Rock Mechanics and Mining Sciences，1992，29(2)：143-156. " target="_blank">
[14]	刘美山，吴从清，张正宇. 小湾水电站高边坡爆破震动安全判据试验研究[J]. 长江科学院院报，2007，24(1)：40-43.(LIU Meishan，WU Congqing，ZHANG Zhengyu. Experimentation on judging standard of blasting vibration safetyin high slope excavation of Xiaowan hydropower station[J]. Journal of Yangtze River Scientific Research Institute，2007，24(1)：40-43.(in Chinese))
[15]	李新平，陈俊桦，李友华，等. 溪洛渡电站地下厂房爆破损伤范围及判据研究[J]. 岩石力学与工程学报，2010，29(10)：2 042-2 049. (LI Xinping，CHEN Junye，LI Youhua，et al. Study of criterion and damage zone induced by excavation blasting of underground power-house of Xiluodu hydropower station[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(10)：2 042-2 049.(in Chinese))
[19]	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))
[3]	胡英国，卢文波，陈明，等. 不同开挖方式下岩石高边坡损伤演化过程的比较[J]. 岩石力学与工程学报，2013，32(6)：1 176-1 184. (HU Yingguo，LU Wenbo，CHEN Ming，et al. Comparison of damage evolution process of high rock slope excavated by different methods[J]. Chinese Journal of Rock Mechanics and Engineering，2013，32(6)：1 176-1 184.(in Chinese))
[10]	言志信，王永和，江平，等. 爆破地震测试及建筑结构安全标准研究[J]. 岩石力学与工程学报，2003，22(11)：1 907-1 911.(YAN Zhixin，WANG Yonghe，JIANG Ping，et al. Study on measurement of blast-induced seism and building safety criteria[J]. Chinese Journal of Rock Mechanics and Engineering，2003，22(11)：1 907-1 911.(in Chinese))
[13]	卢文波. 三峡工程临时船闸与升船机开挖中的爆破方案优化和爆破振动控制[J]. 岩石力学与工程学报，1999，18(5)：497-502.(LU Wenbo. Optimization of blasting procedure and vibration control during excavation of temporary ship lock and ship lift in three gorges project[J]. Chinese Journal of Rock Mechanics and Engineering，1999，18(5)：497-502.(in Chinese))
[2]	周火明，盛谦，李维树，等. 三峡船闸边坡卸荷扰动区范围及岩体力学性质弱化程度研究[J]. 岩石力学与工程学报，2004，23(7)：1 078-1 081.(ZHOU Huoming，SHENG Qian，LI Weishu，et al. Excavation-disturbed zone and weaken degree of mechanical properties for rock mass of ship lock slope[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(7)：1 078-1 081.(in Chinese))
[4]	杨小林，王梦恕，王树仁. 爆破对岩体基本质量的影响及试验研究[J]. 岩土工程学报，2000，22(4)：461-464.(YANG Xiaolin，WANG Mengshu，WANG Shuren. Blasting effects on basic quality of rock mass and its experimental investigations[J]. Chinese Journal of Geotechnical Engineering，2000，22(4)：461-464.(in Chinese))
[17]	SAVELY J P. Designing a final blast to improve stability[C]// SME Annual Conference. Louisiana：[s.n.]，1986：86-89. " target="_blank">
[12]	罗忆，卢文波，陈明，等. 爆破振动安全判据研究综述[J]. 爆破，2010，27(1)：24-27.(LUO Yi，LU Wenbo，CHEN Ming，et al. View of research on safety criterion of blasting vibratio[J]. Blasting，2010，27(1)：24-27.(in Chinese))
[11]	赵明生，梁开水，曹跃，等. 爆破地震作用下建(构)筑物安全标准探讨[J]. 爆破，2008，25(4)：24-27.(ZHAO Mingsheng，LIANG Kaishui，CAO Yue，et al. Discussion on the security criteria of construction(structure) of building under blasting vibration[J]. Blasting，2008，25(4)：24-27.(in Chinese)) " target="_blank">
[18]	BARTON N. The influence of joint properties in modelling jointed rock masses[C]// The 8th ISRM Congress International Society for Rock Mechanics. [S.l.]：[s.n.]，1995：1 023-1 032. " target="_blank">