卞立民, 王有权. 2016: 青岛地铁小角度上跨既有地铁隧道施工方案优化. 工程地质学报, 24(s1): 502-508. DOI: 10.13544/j.cnki.jeg.2016.s1.072
    引用本文: 卞立民, 王有权. 2016: 青岛地铁小角度上跨既有地铁隧道施工方案优化. 工程地质学报, 24(s1): 502-508. DOI: 10.13544/j.cnki.jeg.2016.s1.072
    BIAN Limin, WANG Youquan. 2016: CONSTRUCTION SCHEME OPTIMIZATION OF SMALL ANGLE ON THE ACROSS THE EXISTING SUBWAY TUNNEL OF QINGDAO METRO. JOURNAL OF ENGINEERING GEOLOGY, 24(s1): 502-508. DOI: 10.13544/j.cnki.jeg.2016.s1.072
    Citation: BIAN Limin, WANG Youquan. 2016: CONSTRUCTION SCHEME OPTIMIZATION OF SMALL ANGLE ON THE ACROSS THE EXISTING SUBWAY TUNNEL OF QINGDAO METRO. JOURNAL OF ENGINEERING GEOLOGY, 24(s1): 502-508. DOI: 10.13544/j.cnki.jeg.2016.s1.072

    青岛地铁小角度上跨既有地铁隧道施工方案优化

    CONSTRUCTION SCHEME OPTIMIZATION OF SMALL ANGLE ON THE ACROSS THE EXISTING SUBWAY TUNNEL OF QINGDAO METRO

    • 摘要: 目前国内地铁建设需求日益加大,地铁建设技术要求也越发严苛。本文旨在解决目前在国内地铁隧道小角度、小净距上跨施工技术难题,基于青岛地铁某研究区间隧道小角度、小净距上跨既有地铁线隧道工程实践,结合国内外有关地铁隧道小角度、小净距上跨建设施工案例及技术文献,分析评价工程区域工程地质条件和区域建筑环境,实验测试岩土体力学性质,综合运用帷幕法、超前小导管、自进式管棚及锚杆、格栅等技术手段,综合优化此类小角度小距离上跨隧道工程施工方案。优化施工方案综合运用了多种支护技术手段,最大发挥支护结构自身平衡性能,最大发挥整体支护系统的支护能力,本方案对施工成本控制、工程进度均有很好的促进作用,研究成果可为同类工程提供借鉴和参考。

       

      Abstract: With the increasing of domestic demand for subway construction, the subway construction technical requirements are more stringent. This paper aims to solve the technical problem in the upper cross-segment with small angle and clear distance in the subway tunnel. Based on the existing engineering practices of the section of the Qingdao metro, the engineering geologic condition, regional architectural environment and mechanical properties of rock and soil mass are analyzed combining with the related engineering examples. Comprehensive application of the curtain method, advanced small duct, self-advance pipe shed and anchor, grid and other technical means are optimized for the construction scheme. The improved construction scheme utilizes some supporting technology to play an important role in reducing the construction cost and speeding up the construction progress. The research results can provide reference for this kind of projects under similar conditions.

       

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