复杂环境下既有隧道改扩建断面力学行为研究
戴世颖
Study on Section Mechanical Behavior of Existing Tunnel Reconstruction and Expansion in Complex Environment
DAI Shiying
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作者信息:1.轨道交通工程信息化国家重点实验室(铁一院)， 710043， 西安；
2.陕西省铁道及地下交通工程重点实验室(铁一院)， 710043， 西安
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Affiliation:State Key Laboratory of Rail Transit Engineering Informatization, 710043, Xi′an, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2022.07.030
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中图分类号/CLCN:U457+.6
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栏目/Col:研究报告
摘要:
为满足规划、客流、线路、运营效益、运输能力等要求，部分已建成的既有线路需在附近增设新建线路；新旧线路局部位置根据行车组织、应急救援的需求增设联络线，以满足两处线路互连互通的要求。以地铁联络线位置暗挖既有隧道改扩建断面工程实例为依托，重点对联络线位置既有隧道改扩建断面的力学行为进行分析，对两种改扩建断面从力学状况、施工工期、工程造价等方面进行综合比选，提出合理可行的技术方案。其研究结果可为联络线位置暗挖既有隧道改扩建断面设计与施工提供有益参考。
Abstracts:
In order to meet the requirements of planning, passenger flow, line, operation benefit and transportation capacity, some existing lines are required to add new lines nearby. In local locations of new and old lines, link lines shall be added according to the needs of traffic organization and emergency rescue, so as to interoperate the two lines. Based on the example of metro link line underground existing tunnel section reconstruction and expansion, the mechanical behavior of the reconstruction and expansion section of the existing tunnel at link line position is analyzed emphatically, and the two reconstruction and expansion sections from the aspects of mechanical status, construction period and cost are comprehensively compared and selected. Reasonable technical scheme is proposed. Research results provide useful reference for design and construction of the reconstruction and expansion of underground existing tunnel around link line section.
引文 / Ref:
戴世颖.复杂环境下既有隧道改扩建断面力学行为研究[J].城市轨道交通研究，2022，25（7）：147.
DAI Shiying.Study on Section Mechanical Behavior of Existing Tunnel Reconstruction and Expansion in Complex Environment[J].Urban mass transit，2022，25（7）：147.
DAI Shiying.Study on Section Mechanical Behavior of Existing Tunnel Reconstruction and Expansion in Complex Environment[J].Urban mass transit，2022，25（7）：147.
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