| 高饱和度饱和土中爆炸波与结构的相互作用 |
| |
| 引用本文： | 穆朝民,齐娟,辛凯.高饱和度饱和土中爆炸波与结构的相互作用[J].岩土力学,2011,32(2):429-434. |
| |
| 作者姓名： | 穆朝民 齐娟 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；2. 安徽理工大学 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； 3. 安徽理工大学现代教育技术中心，安徽 淮南 232001；4.总参工程兵科研三所，河南 洛阳 471023 |
| |
| 基金项目： | 国家自然科学基金，中国博士后科学基金面上资助 |
| |
| 摘 要： | 利用改进的? 2.5 mm×5 m的模拟爆炸装置进行了一系列爆炸波与结构相互作用的实验，得出了爆炸波作用下结构上的表面压力、动量、应变的实测波形。实验结果表明，由于结构刚度较小，在相同爆心距离条件下结构的荷载与自由场的压力值相差不大；荷载在顶板的分布较为均匀，结构在爆炸载荷作用下发生整体变形，可以用中心荷载代替整体荷载；结构对爆炸波的反射，无论是弹性波还是冲击波，反射规律基本一致。随着饱和度的增大，结构上的反射系数和爆炸冲击波波速也随之增大。
|
| 关 键 词： | 爆炸力学 饱和土 爆炸波 实验研究 |
| 收稿时间： | 2010-03-23 |
Interaction between blast wave and structure in highly saturated soil |
| |
| MU Chao-min,QI Juan,XIN Kai.Interaction between blast wave and structure in highly saturated soil[J].Rock and Soil Mechanics,2011,32(2):429-434. |
| |
| Authors: | MU Chao-min QI Juan XIN Kai |
| |
| Institution: | 1. School of Energy Resources and Safety, Anhui University of Science and Technology, Huainan, Anhui 232001, China; 2. Key Lab of Mining Coal Safety and Efficiently Constructed by Anhui Province and Ministry of Education, Huainan, Anhui 232001, China; 3. Center of Modern Educational Technology; Anhui University of Science and Technology; Huainan, Anhui 232001, China; 4. The Third Engineer Scientific Research Institute of the Headquarters of the General Staff, Luoyang, Henan 470123, China |
| |
| Abstract: | Using ?2.5 mm×5 m pothole, the experimental study of the interaction between blast wave and structure in highly saturated soils is accomplished systematically. According to recorded waveforms of stress, strain and momentum, the experimental results are interpreted. The experimental results indicate that blast loads on structure are not much more than value of pressure in free field; loads on roof of structure are more uniform than expected value; the overall deformation of structure is generated under blast loads, central loads are used to take place the entire loads; whether or not there is the shock wave, the law of reflection is the same; blast wave velocity and the reflection coefficient of structure increase with saturation degree. |
| |
| Keywords: | mechanics of explosion highly saturated soil blast wave experiment study |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《岩土力学》浏览原始摘要信息 |
| 点击此处可从《岩土力学》下载免费的PDF全文 |
|
