聚–消能复合垫层保护下的水平建基面开挖方法研究

doi:10.13722/j.cnki.jrme.2015.1005

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摘要为实现水工建筑物水平建基面的快速开挖，提出用于竖直炮孔的聚–消能复合垫层结构，并通过混凝土配合比试验研制出了制作聚–消能结构的高波阻抗混凝土材料。利用基于LS-DYNA二次开发的爆破损伤数值仿真技术分析了该复合垫层对炮孔底部损伤特性的影响，论证其用于水平建基面开挖的可行性；并结合在白鹤滩水电站的爆破试验，测试爆后控制基面的超欠挖和爆破损伤深度，验证该复合垫层爆破方法的使用效果。结果表明，聚–消能复合垫层保护下的水平建基面开挖方法能有效控制水平建基面开挖的超欠挖和爆破损伤深度，获得良好的建基面效果，同时，该方法能够充分利用开挖工作面，可实现水平建基面的快速大规模开挖，提高生产效率。

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	胡浩然1
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	卢文波1
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	席浩3
	严鹏1
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	吴刚3
	胡英国1
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	陈明1
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关键词 ：水利工程；建基面开挖；聚&ndash, 消能复合垫层；数值仿真；爆破试验

Abstract：In order to improve the excavation efficiency of hydraulic structures horizontal rock foundation，an energy shaped and dissipation composite cushion is presented，and developed iron sand concrete with high wave impedance used as energy shaped structure construction material. It analyzed the composite cushion’s impact on damage properties at the bottom of blasting holes，and proved its feasibility to be used for foundation surface excavation by using blasting damage numerical simulation technology based on LS-DYNA secondary development. Furthermore，it verified the composite cushions actual effect by carrying out blasting field experiments in Baihetan hydropower station，where controlled surface over excavation and under excavation amount，and explosion damage depth were measured. The results showed that the composite structure enhanced rock fracture degree in horizontal direction and reduced the vertical damage depth at the bottom of blasting holes. Thus it effectively reduced the over and under excavation amount and controlled foundation surface fluctuation，helping to achieve a good rock foundation. Also，it could make full use of the excavation work face and achieve one-time forming of vertical blasting holes， which could realize rock foundation rapid excavation on a large scale.

Key words： hydraulic engineering foundation surface excavation energy shaped and dissipation composite cushion numerical simulation blasting experiment

引用本文:

胡浩然1，2，卢文波1，2，席浩3，严鹏1，2，吴刚3，胡英国1，2，陈明1，2. 聚–消能复合垫层保护下的水平建基面开挖方法研究[J]. 岩石力学与工程学报, 2016, 35(S2): 4129-4138.
HU Haoran1，2，LU Wenbo1，2，XI Hao3，YAN Peng1，2，WU Gang3，HU Yingguo1，2，CHEN Ming1，2. Horizontal foundation surface excavation method under the protection of energy shaped and dissipation composite cushion. , 2016, 35(S2): 4129-4138.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2015.1005 或 https://rockmech.whrsm.ac.cn/CN/Y2016/V35/IS2/4129

[1] 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]. Journal of Rock Mechanics and Engineering，2013，32(6)：1 176– 1 184.(in Chinese))

[2] 杨小林，王树仁. 岩石爆破损伤模型及评述[J]. 工程爆破，1999，5(3)：71–75.(YANG Xiaolin，WANG Shuren. Review on damage model of rock blasting[J]. Engineering Blasting，1999，5(3)：71–75. (in Chinese))

[3] GRADY D E，KIPP M E. Continuum modelling of explosive fracture in oil shale[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1980，17(3)：147–157.

[4] LI H B，XIA X，LI J C. Rock damage control in bedrock blasting excavation for a nuclear power plant[J]. International Journal of Rock Mechanics and Mining Sciences，2010，48(2)：210–218.

[5] 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 weakening degree of mechanical properties for rock mass of Three Gorges shiplock slope[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(7)：1 078– 1 081.(in Chinese))

[6] 张正宇，张文煊. 水电站坝基开挖爆破技术[J]. 爆破，1991，3(3)：42–48.(ZHANG Zhengyu，ZHANG Wenxuan. Hydropower foundation excavation blasting technology[J]. Blasting，1991，3(3)：42–48.(in Chinese))

[7] 张正宇. 现代水利水电工程爆破[M]. 北京：中国水利水电出版社，2003：164–166.(ZHANG Zhengyu. Modern hydraulic and hydropower Engineering blasting[M]. Beijing：China Water and Power Press，2003：164–166.(in Chinese))

[8] 吴新霞，赵根，张正宇，等. 复合垫层理论研究及计算机优化设计[J]. 爆破器材，2000，29(4)：8–11.(WU Xinxia，ZHAO Gen，ZHANG Zhengyu，et al. A study of the theory of duplicate cushion and optimized design by computer[J]. Explosive Materials，2000，29(4)：8–11.(in Chinese))

[9] 赵根，文德钧，张正宇，等. 环向聚能药包研制及其在建基面开挖中的应用[J]. 爆破，2001，18(2)：8–12.(ZHAO Gen，WEN Dejun，ZHANG Zhengyu，et al. Proparation of annular cumulative charge and its application in foundation excavation blasting[J]. Blasting，2001，18(2)：8–12.(in Chinese))

[10] 王礼立，朱兆祥. 应力波基础[M]. 2版. 北京：国防工业出版社，2005：45–47.(WANG Lili，ZHANG Zhaoxiang. Foundation of stress waves[M]. 2nd ed. Beijing：National Defense Industry Press，2005：45–47.(in Chinese))

[11] Livermore Software Technology Corporation. LS-DYNA theoretical manual[M]. California：Livermore Software Technology Corporation，2003：1 012–1 013.

[12] 朱强，陈明，郑炳旭，等. 空气间隔装药预裂爆破岩体损伤分布特征及控制技术[J]. 岩石力学与工程学报，2016，35(增1)： 2 758–2 765.(ZHU Qiang，CHEN Ming，ZHENG Bingxu，et al. Distribution and control technology of rock damage induced by air-deck charge presplitting blasting[J]. Journal of Rock Mechanics and Engineering，2016，35(Supp.1)：2 758–2 765.(in Chinese))

[13] Livermore Software Technology Corporation. LS-DYNA keyword users manual[M]. California：Livermore Software Technology Corporation，2003：1 014–1 015.

[14] 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))

[15] TAYLOR L M，CHEN E P，KUSZMAUL J S. Micro-crack induced damage accumulation in brittle rock under dynamic loading[J]. Computer Methods in Applied Mechanics and Engineering，1986，55(3)：301–320.

[16] 中华人民共和国行业标准编写组. SL47—94水工建筑物岩石基础开挖工程施工技术规范[S]. 北京：水利电力出版社，1995.(The Professional Standards Compilation Group of People¢s Republic of China. SL47–94 Technical specification for construction of rock foundation excavation of hydraulic structures[S]. Beijing：Water Resources and Electric Power Press，1995.(in Chinese))