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首页> 外文会议>Rapid Excavation and Tunneling Conference 2015 proceedings >CENTRAL SUBWAY TUNNEL CONSTRUCTION INSTRUMENTATION: LESSONS LEARNED, SAN FRANCISCO, CALIFORNIA
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CENTRAL SUBWAY TUNNEL CONSTRUCTION INSTRUMENTATION: LESSONS LEARNED, SAN FRANCISCO, CALIFORNIA

机译：中央地铁隧道施工仪器：经验教训，加利福尼亚州旧金山

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摘要

Construction of the SFMTA Central Subway twin tunnels was completed in mid‑2014rnthrough one of San Francisco’s most densely populated areas. Potential impacts tornhistoric buildings, active transit systems, and utilities were anticipated in the design.rnAn integrated system of real-time construction monitoring provided tunnel- andrnexcavation-related deformation and was important in evaluating TBM performancernand the extensive compensation grouting program. The web-based system includedrnautomated building-settlement prisms, liquid-level sensors, multiple point boreholernextensometers, inclinometers, tilt beams, tiltmeters, load cells, and piezometers.rnConventional survey methods were used for monitoring potential movement of buildings,rntunnels, surface points and utilities. Acoustic leak detection technology was usedrnto monitor water distribution systems. The key instrumentation systems employed andrnlessons learned during this successful project are reviewed.
机译：通过旧金山人口最稠密的地区之一，SFTMA中央地铁双隧道的建设已于2014年中完成。设计中预计会对历史建筑，主动运输系统和公用事业造成潜在影响。实时施工监控的集成系统提供了与隧道和挖掘相关的变形，对于评估TBM性能和广泛的补偿灌浆程序非常重要。基于Web的系统包括自动化的建筑物沉降棱镜，液位传感器，多点空心管引伸计，倾角仪，倾斜梁，倾斜仪，称重传感器和压强计。rn传统的测量方法用于监视建筑物，隧道，表面点和地面的潜在运动。实用程序。声学泄漏检测技术被用于监测供水系统。审查了成功实施项目中使用的关键仪器系统和经验教训。

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