| 岩石炮孔预切槽爆破断裂成缝机理研究 |
| |
| 引用本文： | 宗琦.岩石炮孔预切槽爆破断裂成缝机理研究[J].岩土工程学报,1998,20(1):30-33. |
| |
| 作者姓名： | 宗琦 |
| |
| 作者单位： | 淮南矿业学院土木系； |
| |
| 摘 要： | 应用岩石断裂力学理论和爆生气体膨胀准静压理论，建立了岩石中炮孔不偶合装药孔壁预切槽爆破时的脆性断裂力学模型，分析了裂缝的扩展规律，包括起裂、止裂条件、起裂方向、扩展长度和裂缝扩展过程中的速度变化等。此外，本文还就炮孔预切槽爆破时的动态效应进行了初步探讨。
|
| 关 键 词： | 切槽爆破 爆生气体 裂缝 应用强度因子 |
Investigations into mechanism of crack formation for grooved hole well blasting |
| |
| Zong Qi.Investigations into mechanism of crack formation for grooved hole well blasting[J].Chinese Journal of Geotechnical Engineering,1998,20(1):30-33. |
| |
| Authors: | Zong Qi |
| |
| Affiliation: | Department of Civil Engineering Huainan Mining Institute Huainan 232001 |
| |
| Abstract: | Based on the theory of rock fracture mechanics and function of explosion gas,the beginning and end condition as well as the developing direction, speed and length are analysed when decoupling charge is adopted for symmetric grooved hole well. Crack dynamic effects of grooved blasting are preliminary investigated. Theoretical reference is offfered for the determination of grooved blasting parameters. |
| |
| Keywords: | grooved blasting explosion gas crack stress strength factor |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《岩土工程学报》浏览原始摘要信息 |
|
点击此处可从《岩土工程学报》下载全文 |
