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| 变埋深条件下饱和土爆炸能量耦合系数的试验研究 | |
| 引用本文： | 穆朝民,任辉启,李永池,辛凯.变埋深条件下饱和土爆炸能量耦合系数的试验研究[J].岩土力学,2010,31(5):1574-1578. |
| 作者姓名： | 穆朝民 任辉启 李永池 辛凯 |
| 作者单位： | 1. 安徽理工大学,能源与安全学院,安徽,淮南,232001;煤矿安全高效开采省部共建教育部重点试验室,安徽,淮南,232001;中国科学技术大学,近代力学系,合肥,230026;总参工程兵科研三所,河南,洛阳,471023 2. 总参工程兵科研三所,河南,洛阳,471023 3. 中国科学技术大学,近代力学系,合肥,230026 |
| 基金项目： | 国家自然科学基金重点项目，国家自然科学基金 |
| 摘 要： | 通过在φ2.5 m×5 m模拟爆炸装置中进行了饱和土爆炸试验。利用自由场试验研究了饱和土在不同埋设深度条件下的爆炸问题,得到了相应的爆炸破坏效应的宏观特征和压力实测波形,并对测试结果进行了分析,得到了饱和土中爆炸波传播规律,并通过试验得到耦合系数的试验数据,绘制了耦合系数曲线。实验结果表明,对于封闭爆炸最小比例埋深为2.62 m/kg1/3,当比例埋深大于2.62 m/kg1/3时,峰值压力与动量受比例埋深的影响不大,此时爆炸能量基本被封闭在饱和土中。 |
| 关 键 词： | 爆炸力学 饱和土中爆炸 试验研究 耦合系数 |
| 收稿时间： | 2009-09-01 |
Experiment study of explosion energy coupling coefficient with different burial depths in saturated soils |
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| MU Chao-min,REN Hui-qi,LI Yong-chi,XIN Kai.Experiment study of explosion energy coupling coefficient with different burial depths in saturated soils[J].Rock and Soil Mechanics,2010,31(5):1574-1578. | |
| Authors: | MU Chao-min REN Hui-qi LI Yong-chi XIN Kai |
| Institution: | 1. School of Energy Resources and Safety, Anhui University of Science and Technology, Huainan Anhui, 232001, China; 2. Key Laboratory of Mining Coal Safety and Efficiently Constructed by Anhui Province and Ministry of Education, Huainan Anhui, 232001, China; 3. Department of Modern Mechanics, University of Science and Technology of China, Hefei 230026, China; 4. Luoyang Institute of Hydraulic Engineering and Technology, Luoyang Henan, 470123, China |
| Abstract: | The experiment of explosion wave propagation in saturated soils is accomplished in the ? 2.5 m×5 m pothole. Free-field experiments of explosion with different burial depths in saturated soils are carried out. The macro characteristics of explosion and recorded waveforms of pressure are presented. The recorded results are interpreted. The propagation laws of shock wave in saturated soil, the data of coupling coefficient and the coupling coefficient curve are obtained. The experiments show that the minimal scaled buried depth is 2.62 m/kg1/3 for close explosion in free-field. When the minimal scaled buried depth exceeds 2.62 m/kg1/3, the peak pressure and momentum influenced by the scaled buried depth is very little. At this point the mostly energy of explosion is closed in saturated soils. |
| Keywords: | mechanics of explosion explosion in saturated soils experimental study coupling coefficient |
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