| 深井软岩大巷深孔爆破卸压机理及工程应用 |
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| 引用本文： | 吕渊 徐颖. 深井软岩大巷深孔爆破卸压机理及工程应用[J]. 煤矿爆破, 2005, 0(4): 30-33 |
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| 作者姓名： | 吕渊 徐颖 |
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| 作者单位： | 安徽理工大学土木工程系,安徽省淮南市232001 |
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| 基金项目： | 安徽省自然科学基金资助项目 |
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| 摘 要： | 针对深井高应力软岩巷道变形量大、返修时间短的特点，提出巷道基角深孔爆破卸压方法和设计原理，并在淮南矿业集团谢桥矿进行了现场试验。对比试验表明，高应力软岩巷道基角卸压在巷道掘进初期对围岩变形速度、变形量及稳定时间得到了很好的控制，表明深部爆破卸压可以充分改变围岩应力状态。
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| 关 键 词： | 深井软岩 爆破卸压 围岩稳定 变形测试 |
Discussions on the Mechanism of Deep Hole Blasting Destressing for Soft Rock in Deep Mine and Application in Engineering Practice |
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| Lu Yuan, Xu Ying. Discussions on the Mechanism of Deep Hole Blasting Destressing for Soft Rock in Deep Mine and Application in Engineering Practice[J]. Coal Mine Blasting, 2005, 0(4): 30-33 |
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| Authors: | Lu Yuan Xu Ying |
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| Affiliation: | Anhui University of Science and Technology, Huainan Anhui, 232001 |
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| Abstract: | To the characteristics of great deformation and short repair period of soft rock opeings under high stresses, destressing measure of base comer deep hole blasting and design principle are suggested. Corresponding in situ tests are carried out in Xieqiao Mine of Huainan Mining Group. It is indicated that base comer blasting distressing is advantageous for rock deformation speed in the initial stage of excavation and the amount of deformation and stability time are controlled well. Thus, stress state of rocks can be changed by deep blasting. |
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| Keywords: | soft rock in deep mine blasting destressing wall rock stabilization distortion test |
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