石灰岩中核爆冲击震动效应的化爆模拟

薛宇龙; 唐德高; 李大鹏; 李治中; 么梅利; 胡兆颖

doi:10.11883/1001-1455(2015)02-0273-05

石灰岩中核爆冲击震动效应的化爆模拟

doi: 10.11883/1001-1455(2015)02-0273-05

1.
解放军理工大学爆炸冲击防灾减灾国家重点实验室, 江苏南京 210007
2.
解放军理工大学野战工程学院, 江苏南京 210007

基金项目: 国家自然科学基金创新研究群体项目(51021001);国家自然科学基金项目(51378498)

详细信息

作者简介:
薛宇龙(1988—), 男, 硕士研究生, ylx19880218@163.com

中图分类号: O382.2;TP91
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- 被引次数: 0
出版历程
- 收稿日期: 2013-08-29
- 修回日期: 2014-01-02
- 刊出日期: 2015-03-25

Simulation of shock and vibration of nuclear explosion in limestone based on chemical explosion

1.
State Key Laboratory of Disaster Prevention and Mitigation, PLA University ofScience and Technology, Nanjing 210007, Jiangsu, China
2.
College of Field Engineering, PLA University of Science and Technology, Nanjing 210007, Jiangsu, China

摘要

摘要: 根据爆炸能量相似律，提出了采用化爆模拟核爆在石灰岩中爆炸的冲击震动效应的方法。通过对核爆和化爆分别在石灰岩中爆炸的冲击震动效应的分析，建立了化爆与核爆之间自由场峰值应力和峰值速度的模拟关系式，并利用最小二乘法，拟合出了最终的模拟表达式。经过对关系式的计算表明：拟合出的关系式较可靠，在已知化爆的基础上可近似计算核爆的峰值应力及峰值速度。
- 爆炸力学 /
- 冲击震动效应 /
- 爆炸相似律 /
- 核爆 /
- 最小二乘法 /
- 化爆
Abstract: Analysis on shock and vibration of nuclear explosion in limestone is difficult due to the forbidden law of nuclear test. Based on the blasting similarity law, simulation of shock and vibration of nuclear explosion in limestone based on chemical explosion is considered. Shock and vibration of nuclear and chemical explosion had been analyzed. The expression of equivalent weight coefficient between chemical and nuclear explosion is defined by stress wave and velocity and given by least square method. The expression can be used to calculate stress wave and velocity of nuclear explosion approximately.
- mechanics of explosion /
- shock and vibration /
- blasting similarity law /
- nuclear explosion /
- least square method /
- chemical explosion

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图 1 自由场径向峰值速度

Figure 1. Peak radial velocitis of free field

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图 2 自由场径向峰值应力

Figure 2. Peak radial stresses of free field

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表 1 自由场的峰值速度和峰值应力

Table 1. Peak radial velocitis and stresses of free field

(r·w^-1/3)/(m·kg^-1/3)	10⁴v_r/(Mm·s^-1)	v_h/(Mm·s^-1)	10⁴v_r/v_h	10⁴σ_r/TPa	σ_h/TPa	10⁴σ_r/σ_h
0.01	1 613 000	5 135 000	0.314	4 910.0	70 532	0.069 6
0.05	28 854	189 520	0.152	196.40	2 440.8	0.080 5
0.10	5 100.7	45 766	0.111	49.100	573.30	0.085 6
0.25	516.16	6 994.6	0.074	7.856 0	84.468	0.093 0
0.50	91.24	1 689.1	0.054	1.964 0	19.840	0.099 0
0.75	33.11	753.64	0.044	0.873 0	8.501 7	0.102 7
1.00	16.13	407.89	0.040	0.491 0	4.660 0	0.105 4
1.25	9.23	258.15	0.036	0.314 2	2.923 1	0.107 5
1.50	5.85	177.65	0.033	0.218 2	1.997 0	0.109 3
1.75	3.98	129.51	0.031	0.160 3	1.446 9	0.110 8
2.00	2.85	98.50	0.029	0.122 8	1.094 5	0.112 2
2.25	2.12	77.37	0.027	0.097 0	0.855 7	0.113 4
2.50	1.63	62.34	0.026	0.078 6	0.686 8	0.114 4
2.75	1.29	51.27	0.025	0.065 0	0.562 6	0.115 5
3.00	1.03	42.90	0.024	0.054 6	0.469 0	0.116 4

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参考文献(10)

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