高饱和度饱和砂中爆炸波传播规律的自由场实验研究

穆朝民; 齐娟; 辛凯

doi:10.15892/j.cnki.djzdxb.2010.05.001

弹箭与制导学报 >

2010 , Vol. 30 >Issue 5: 87 - 89,96

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2010.05.001

弹药技术

高饱和度饱和砂中爆炸波传播规律的自由场实验研究

穆朝民 ,
齐娟 ,
辛凯

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¹ 总参工程兵科研三所,河南洛阳 471023
² 安徽理工大学,安徽淮南 232001
³ 煤矿安全高效开采省部共建教育部重点实验室,安徽淮南 232001

穆朝民(1977-)男,安徽淮南人,博士,研究方向:工程安全与防护。

收稿日期: 2009-12-15

网络出版日期: 2025-05-28

基金资助

国家自然科学基金(10632080);国家自然科学基金(10402041,10572134)

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The Free-field Experimental Study on Blast Wave Propagation in Saturated Sand with High Degree of Saturation

MU Chaomin ,
QI Juan ,
XIN Kai

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¹ The Third Research Institute of the Corps Engineering, Henan Luoyang 471023, China
² Anhui University of Science and Technology, Anhui Huainan 232001, China
³ Key Laboratory of Mining Coal Safety and Efficiently Constructed by Anhui Province and Ministry of Education, Anhui Huainan 232001, China

Received date: 2009-12-15

Online published: 2025-05-28

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摘要

为了研究爆炸波在高饱和度饱和砂传播特性,利用2.5×5m爆炸模拟装置进行饱和砂接触爆炸模拟试验的过程,实验得到了爆炸波在饱和砂自由场中传播大量的试验数据。根据实验测得的数据,拟合出压力、动量、上升时间随比例距离变化的公式,得到了爆炸波在饱和砂中的衰减规律。理论分析揭示了饱和砂中应力波传播时出现流体动力区和冲击波形成等性质,建立了饱和砂双线性递增硬化本构关系。

关键词： 爆炸力学; 饱和土; 自由场实验; 爆炸波

本文引用格式

穆朝民 , 齐娟 , 辛凯 . 高饱和度饱和砂中爆炸波传播规律的自由场实验研究[J]. 弹箭与制导学报, 2010 , 30(5) : 87 -89,96 . DOI: 10.15892/j.cnki.djzdxb.2010.05.001

Abstract

In order to study propagation of blast wave, the test simulating contact explosion in saturated sand was completed in the Ф2.5×5m pothole. Through the experiment, the data of the free field in the saturated sand was got. According to analysis of the test data, the spreading law of the wave in free field of saturated sand was obtained. Through the experiment, the data of the freefield in the saturated soil was obtained. The formulas of pressure, momentum and rise time with distance were fitted based on a large number of test data. Theoretical analysis shows that saturated sand has the nature of liquid dynamic area appearing and shock wave forming when the stress wave spreads in the saturated sand. The bilinear progressively increasing-hardening constitutive relation in saturated sand was established. Dividing pressure was determined and that is the value from shock wave to elastic wave.

Key words： mechanics of explosion; saturated sand; free field experiment; blast wave

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参考文献

[1]	Puebla H,Byrme P M,Philips R.Analysis of CANLEX liquefaction embankments:prototype and centrifuge models[J].Canadian Geotechnical Journal,1997,34(5):641-657.
[2]	Byrne P M,Cheung H,Yan L.Soil parameters for deformation analysis of sand masses[J].Canadian Geotechnical Journal,1987,24(3):366-376.
[3]	Biot M A.Theory of propagation of elastic waves in a fluid saturated porous solid[J].Journal of Acoustic,1956,28(2):168-191.
[4]	Dontsov V E,Nakoryakov V E.Enhancement of shock waves in a porous medium saturated with a liquid containing soluble-gas bubbles[J].International Journal of Multiphase Flow,2001,27(11):2023-2041.
[5]	WANG Zhong-qi,HAO Hong,LU Yong.A three-phase soil model for simulating stress wave propagation due to blast loading[J].International Journal for Numerical and Analytical Methods in Geomechanics,2004,28(1):33-56.
[6]	Prapaharan S, Chameau JL, Holtz RD. Effect of strain rate on untrained strength derived from pressure meter tests[J]. Geotechnique, 1989, 39(4): 615- 624.
[7]	赵跃堂, 郑守军, 郑大亮,等. 爆炸波在饱和土介质中传播时压力变化规律的试验研究[J]. 防灾减灾工程学报, 2004, 24(1): 61- 64.
[8]	赵跃堂, 郑大亮, 王明洋,等. 饱和土介质中爆炸波传播的时间特征试验研究[J]. 防灾减灾工程学报, 2004, 24(2): 162- 167.
[9]	赵跃堂, 梁晖, 范斌. 饱和土中爆炸波传播问题的数值模拟[J]. 爆炸与冲击, 2007, 27(4): 352- 357.
[10]	王明洋, 赵跃堂, 钱七虎. 饱和砂土动力特性及数值方法研究[J]. 岩土工程学报, 2002, 24(6): 723- 729.
[11]	国胜兵, 高培正, 潘越峰,等. 爆炸波在准饱和砂土中的传播规律[J]. 岩土力学, 2004, 25(12): 1897- 1902.
[12]	孙美风. 爆炸荷载作用下饱和土中地下建筑结构的动力响应[J]. 华北水利水电学院学报, 2004, 25(2): 18- 21.
[13]	杨海杰, 钱七虎, 赵跃堂,等. 三相饱和土爆炸液化机理模型研究[J]. 解放军理工大学学报, 2001, 2(1): 70- 73.
[14]	刘建新, 宋华, 赵跃堂,等. 准饱和砂土中平面压缩波传播[J]. 防灾减灾工程学报, 2004, 24(1): 86- 92.

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