一种隧道中硬岩上台阶多阶超深孔抛碴控振自稳爆破方法
By employing a multi-stage ultra-deep hole blasting and vibration-controlled self-stabilizing blasting method on hard rock benches in tunnels, the problems of insufficient blasting vibration control and slag collection were solved, achieving efficient and safe blasting and slag collection, and improving construction progress and tunnel stability.
CN117053640BActive Publication Date: 2026-07-17CHINA RAILWAY 18TH BUREAU GRP CO LTD +2
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA RAILWAY 18TH BUREAU GRP CO LTD
- Filing Date
- 2023-08-23
- Publication Date
- 2026-07-17
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Figure CN117053640B_ABST
Abstract
本发明公开了上台阶爆破技术领域的一种隧道中硬岩上台阶多阶超深孔抛碴控振自稳爆破方法。包括以下步骤，步骤一，上台阶分区：对上台阶分区，为掏槽区、第一辅助区和第二辅助区；步骤二，雷管和起爆网络布置：掏槽区和辅助区内的雷管均呈向上阶梯状布置，且构成彭罗斯阶梯，并在彭罗斯阶梯中心设置渣槽，渣槽呈竖向往下延伸状；步骤三，炮眼布置：掏槽区内的炮眼包括掏槽眼、第一辅助眼、底板眼和第一周边眼；第一辅助区和第二辅助区内的炮眼均包括第二辅助眼和第二周边眼；步骤四，装药。本发明简单易操作，通过掏槽区和辅助区内的雷管均呈向上阶梯状布置，由此实现爆破范围的不断变大而爆破渣却不断的被收集，进而实现爆破和爆破渣收集充分。
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