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摘要: 通过小药量化爆模拟实验，研究了岩石中满足缩比关系的不同药量化学爆炸一氧化碳渗漏时间、渗漏份额与药量的关系。研究结果表明：相同介质中缩比爆炸实验气体渗漏时间大致与药量的三分之二次方成正比，渗漏停止时间也大致与药量的三分之二次方成正比；封闭空间内化学爆炸在爆室内产生的高温能够使爆室内一些物质分解产生非冷凝气体；对于不同药量的缩比实验，小药量实验的气体渗漏份额不小于大药量实验的气体渗漏份额。根据此研究结果，可以用小药量地下爆炸气体渗漏行为的监测结果预估大药量实验的气体渗漏行为。Abstract: Small-scale chemical explosion simulation experiments were carried out to investigate the leakage time and percentage of CO gas from different-scale chemical explosions in rock.The different-scale chemical explosions meted a scaling relation.The researched results show as follows: (1) the beginning time and stopping time of gas leakage are approximately proportional to the two-third power of the explosive quantities in scaled explosion experiments in similar media; (2) some materials in a sealed blast chamber can decompose into non-condensable gas under high temperature caused by explosion; (3) the percentages of the leaked CO in smaller charge scale experiments are not less than those in the larger charge scale experiments.According to the researched results, one can estimate the gas leakage in larger charge scale underground explosion by the metrical results in smaller charge explosion.
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Key words:
- mechanics of explosion /
- gas leakage /
- scaled explosion experiments /
- chemical explosion
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表 1 实验设计
Table 1. Design of experiments
No. ag/mm dc/mm lc/mm WTNT/g 1 500 80 80 1.25 2 500 80 80 1.25 3 1 000 160 160 10.00 4 1 000 160 160 10.00 
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[1] Schoengold C R, DeMarre M E, Kirkwood E M. Radiological effluents released from US continental tests: 1961 through 1992[R]. Nevada: Bechtel, 1996. [2] Hudson B, Stubbs T. Summary of LLNL containment: Diagnostics data 1985-1993[C]//Proceedings of the Seventh Symposium on Containment of Underground Nuclear Explosions. CA: Lawrence Livermore National Laboratory, 1993. [3] Nitao J J. User's manual for the USNT module of the NUFT code, Version 2.0[CP]. CA: Lawrence Livermore National Laboratory, 1998. [4] Travis B J. TRACR3D: A model of flow and transport in porous/fractured media[CP]. New Mexico: Los Alamos Laboratory, 1984. [5] 乔登江.地下核爆炸现象学概论(下册)[M].北京: 国防工业出版社, 2002: 51-59. [6] 王铁良, 张建鑫, 曹渊.地下爆炸气体输运的一种双孔隙度数学模型[J].应用力学学报, 2011, 28(6): 565-569.Wang Tie-liang, Zhang Jian-xin, Cao Yuan. A dual porosity model of gas transportation on underground detonation[J]. Chinese Journal of Applied Mechanics, 2011, 28(6): 565-569. [7] 王铁良, 曹渊, 张建鑫.地下爆炸空腔压力和温度历程数值模拟[J].计算物理, 2011, 28(5): 713-718.Wang Tie-liang, Cao Yuan, Zhang Jian-xin. Numerical simulation of cavity pressure and temperature in underground detonation[J]. Chinese Journal of Computational Physics, 2011, 28(5): 713-718. [8] 张建鑫, 王宏亮, 王铁良.高压驱动下非均匀介质内气体输运数值模拟[J].地下空间与工程学报, 2011, 7(增刊2): 1677-1682.Zhang Jian-xin, Wang Hong-liang, Wang Tie-liang. Numerical simulation of gas diffusion driven by high pressure in the heterogeneous media[J]. Chinese Journal of Underground Space and Engineering, 2011, 7(suppl 2): 1677-1682. [9] 王铁良, 田宙, 王占江, 等.缩比地下化学爆炸气体泄漏规律研究[J].计算物理, 2013, 30(2): 209-213.Wang Tie-liang, Tian Zhou, Wang Zhan-jiang, et al. Regularity of gas leakage from scaled underground chemical explosion[J]. Chinese Journal of Computational Physics, 2013, 30(2): 209-213. [10] 王占江, 张德志, 张向荣, 等.蓝田花岗岩冲击压缩特性的实验研究[J].岩石力学与工程学报, 2003, 22(5): 797-802.Wang Zhan-jiang, Zhang De-zhi, Zhang Xiang-rong, et al. Testing study on shock compression for Lantian granite[J]. Chinese Journal of Rock Mechanics and Engineering, 2003, 22(5): 797-802. -
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