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城市地铁,特别是区间隧道暗挖施工,由于从地面建筑物及地下管线下面穿过,施工中的土体变形、水位下降和施工崩塌将会对其上的市政设施和建筑物造成不利甚至严重的影响。施工中进行防灾监控量测可及时发现这些不利影响,确保施工及周围环境的安全,减少对城市生活的影响。因此施工防灾监测工作是城市地铁建设中必不可少的重要环节。广州地铁二号线海珠广场站至公园前站区间隧道,埋深16～25m,其上建筑物密集,部分十分陈旧,隧道采用矿山法暗挖通过。文章从监测的规划、项目设置、观测手段、方式方法、资料处理及成果分析等几方面进行全面详细叙述,观测项目齐全,数据连续、完整、详实、很有规律性,值得作进一步的深层分析。系统而全面的防灾监测工作,有效地保证了地铁施工的顺利完成。防灾监测工作非常成功。监测工作经验值得类似工程监测借鉴。
Subway construction of urban subways, especially tunnels, will cause adverse or even severe damage to the municipal facilities and buildings thereon due to deformation of the soil body, lowering of the water level and collapse of the construction due to the passage from the surface buildings and underground pipelines Impact. Disaster prevention monitoring during construction can detect these adverse effects in time, ensure the safety of construction and surrounding environment, and reduce the impact on urban life. Therefore, the construction of disaster prevention monitoring is an essential part of the construction of the city subway. Guangzhou Metro Line Haizhu Square Station to the park before the station tunnel, depth 16 ~ 25m, on which the buildings are dense, part of the very old, tunneling method adopted by mining. The article describes in detail from the aspects of monitoring planning, project setting, observation means, methods and methods, data processing and result analysis. The observation project is complete, the data is continuous, complete, detailed and regular, which deserves further deep analysis . The systematic and comprehensive disaster prevention and monitoring work effectively ensured the successful completion of subway construction. Disaster prevention monitoring has been very successful. Monitoring work experience worthy of similar project monitoring reference.