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随着北京地铁从市内向周边区县延伸,向西、北部地区已接近山区,地铁施工在常规软弱地质条件下采用人工、机械开挖,在远离中心邻近山区的硬岩地质条件下尝试采取爆破法施工技术也是切实可行的。以北京轨道交通昌平线二期区间隧道爆破施工实践为例,对地铁隧道爆破施工临近建筑构筑物的可行性进行分析研究,采取切实可行的控制措施,确保施工安全,为类似工程提供借鉴。
As the Beijing Subway extends from the city to the surrounding districts and counties, and the west and north regions have approached the mountainous areas, the subway construction uses manual and mechanical excavation under the normal weak geological conditions to try to take the blasting in the hard rock geological conditions away from the central neighboring mountains Law construction technology is feasible. Taking the practice of tunnel blasting in the second phase of Changping Line of Beijing rail transit as an example, the feasibility of blasting construction of subway tunnel near the building is analyzed and studied. Practical control measures are taken to ensure construction safety and provide reference for similar projects.