矿山法隧道近距离下穿建筑物爆破控制研究

Research on blasting control of mine tunnel in short distance under building

摘要:

矿山法隧道下穿建筑物施工,存在对已有建筑物沉降、结构损伤等不利影响,施工风险高。文章以青岛某隧道工程为参考,对矿山法隧道施工关键点进行分析探讨,重点研究控制爆破、机械开挖、监控量测等方面,重点强化改进超前地质预报、爆破减震进行改进。利用数值模拟分析掌子面增设减震孔研究钻爆施工中减震效果,并在工程中推进应用,达到预期效果,保证工程安全,为类似工程提供参考和指导。

Abstract:

The construction of buildings under the mine tunnel has adverse effects such as sinking and structural injuries, and high construction risks. The article takes a tunnel project in Qingdao as a reference to analyze and discuss the key points of the construction of the mining law tunnel. It focuses on research and control of blasting, mechanical excavation, and monitoring measurement. Use numerical simulation analysis to analyze the shock absorption effect during the construction of the shock absorption holes, and promote the application in the project to achieve the expected effect, ensure the safety of the project, and provide reference and guidance for similar projects.