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隧道建设(中英文) ›› 2018, Vol. 38 ›› Issue (5): 797-804.DOI: 10.3973/j.issn.2096-4498.2018.05.012

• 研究与探索 • 上一篇    下一篇

地铁盾构施工对上覆平行雨污管道影响的试验和数值分析

胡愈1, 2, 姚爱军1,﹡, 张剑涛3, 郭海峰1   

  1. (1. 北京工业大学城市与工程安全减灾省部共建教育部重点试验室, 北京 100124; 2. 河南工程学院土木工程学院, 河南郑州 451191; 3. 中国建筑科学研究院建研地基基础工程有限责任公司, 北京 100013)
  • 收稿日期:2017-11-01 修回日期:2018-04-13 出版日期:2018-05-20 发布日期:2018-06-01
  • 作者简介:胡愈(1977—),男,河南许昌人,北京工业大学岩土工程专业在读博士,讲师,研究方向为岩土与地下工程。Email: huyu007@emails.bjut.edu.cn。*通信作者: 姚爱军, Email: yaj@bjut.edu.cn。
  • 基金资助:

    国家自然科学基金(51578023)

Test and Numerical Simulation Analysis of Influence of Metro Shield Tunneling on Upper Parallel Rainsewage Pipeline

HU Yu1, 2, YAO Aijun1, *, ZHANG Jiantao3, GUO Haifeng1   

  1. (1. Key Laboratory of Urban Security and Disaster Engineering, Ministry of Education, Beijing University of Technology, Beijing 100124, China; 2. College of Civil Engineering, Henan University of Engineering, Zhengzhou 451191, Henan, China; 3.Foundation Engineering Co., Ltd., China Academy of Building Research, Beijing 100013, China)
  • Received:2017-11-01 Revised:2018-04-13 Online:2018-05-20 Published:2018-06-01

摘要:

为研究隧道盾构施工条件下上覆大直径雨污管线的变形和内力特征,以北京市某典型地铁隧道盾构工程为例,采用模型试验方法和数值模拟计算方法对管隧平行条件下盾构施工引发上覆雨污管线变形与内力过程进行研究与验证,同时对管隧竖向净距l和管隧横向间距d的变化进行研究。研究表明: 1)盾构隧道施工引起的上覆雨污管线沉降基本呈现平缓分布,需在施工时对管节接口处加密布设监测点,提高监测频率。2)管线顶部与底部均出现受拉状态,需对各管节采取抗拉防护措施。3)隧道和管线都处于类似地层并采用盾构施工时,l在6D范围内(D为隧道直径)、d在4D范围内为管线变形敏感区,管线应力随l和d的增加而减小。

关键词: 地铁隧道, 盾构施工, 雨污管线, 模型试验, 数值模拟, 管线沉降, 管线应力

Abstract:

On the basis of typical metro shield tunneling in Beijing, the model test and numerical simulation are applied in order to study and verify the characteristics of deformation and inner force of largediameter overlying rainsewage pipeline. And then, the variation of vertical net distance between tunnel and pipe (l) and horizontal distance between tunnel and pipe (d) is studied. The results demonstrate that: (1) The settlement curve of pipeline distributes mild, as a result, the monitoring points should be laid out densely within the scope of joints of pipeline; and the monitoring frequency should be increased. (2) For every segment should be added with antitension measures because the top and bottom of pipeline are under tension. (3) The areas where l within 6D, where D is tunnel diameter, and d within 4D are sensitive to deformation when tunnel and pipeline are in the similar stratum; and where the stress of pipeline decreases with l and d increase.

Key words: metro tunnel, shield tunneling, rainsewage pipeline, model test, numerical simulation, pipeline settlement, pipeline stress

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