盾构超近距离下穿既有地铁盾构区间工程监测实例研究
发布时间：2018-10-08 18:47
【摘要】：近年来,随着轨道交通迅速、大规模的发展,越来越多的地铁建设将面临多次穿越既有地铁线路的问题。根据有关研究,在2050年北京市区轨道交通线路规划图中,节点车站和地铁区间穿越段的数目高达118处。由于盾构下穿过程中不可避免地对既有地铁运营隧道造成影响,引起沉降或隆起,地铁运营对既有线的轨道变形又有非常严格的控制标准,如北京地铁盾构隧道下穿既有地铁运营隧道多为“特、一级风险工程”,因此通过实时监测数据得出变形趋势与及时调整相应控制措施,从而对施工进行指导,以确保运营隧道的正常运行和安全是非常有必要的。北京地铁盾构隧道下穿既有地铁运营隧道,安全风险控制等级要求高。盾构下穿过程中不可避免地对地铁运营隧道造成影响,引起沉降或隆起,存在潜在风险。通过盾构超近距离下穿地铁运营隧道工程实例为背景,研究分析规范性的自动化监测数据对实时反映施工动态的重要性,研究和探讨既有地铁区间传统、新兴的监测手段及监测方法,并结合实测数据对盾构近距离穿越扰动影响进行定量分析,讨论施工参数和相关控制措施研究,通过实测数据对既有线结构变形规律和盾构下穿既有线施工技术进行分析研究,为越来越多的交叉穿越工程提供资料,为国内外类似工程提供借鉴。
[Abstract]:In recent years, with the rapid development of rail transit, more and more subway construction will face the problem of crossing existing subway lines many times. According to relevant research, the number of node stations and subway crossing sections in the urban rail transit planning map of Beijing in 2050 is as high as 118. Due to the inevitable influence of shield tunneling on the existing subway tunnel and the settlement or uplift, the subway operation has a very strict control standard to the deformation of the existing railway track. For example, most of Beijing metro shield tunnel underpass the existing subway operating tunnel is "special, first-class risk engineering", so through real-time monitoring data to obtain the deformation trend and timely adjustment of the corresponding control measures, so as to guide the construction. It is necessary to ensure the normal operation and safety of the operating tunnel. Under the shield tunnel of Beijing Metro, the safety risk control level is high. In the process of shield tunneling, the subway tunnel is inevitably affected, causing settlement or uplift, and there are potential risks. Based on the example of shield tunneling project, the importance of normative automatic monitoring data to reflect the construction dynamic in real time is studied and analyzed, and the tradition of existing subway section is studied and discussed. The new monitoring means and monitoring methods, combined with the measured data, are used to quantitatively analyze the impact of shield tunneling on the close-through disturbance, and the construction parameters and related control measures are discussed. Based on the measured data, the deformation law of the existing railway structure and the construction technology of the existing railway under shield tunneling are analyzed and studied, which provides data for more and more cross crossing projects, and provides reference for similar projects at home and abroad.
【学位授予单位】：中国地质大学(北京)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U455.43
本文编号：2257873
[Abstract]:In recent years, with the rapid development of rail transit, more and more subway construction will face the problem of crossing existing subway lines many times. According to relevant research, the number of node stations and subway crossing sections in the urban rail transit planning map of Beijing in 2050 is as high as 118. Due to the inevitable influence of shield tunneling on the existing subway tunnel and the settlement or uplift, the subway operation has a very strict control standard to the deformation of the existing railway track. For example, most of Beijing metro shield tunnel underpass the existing subway operating tunnel is "special, first-class risk engineering", so through real-time monitoring data to obtain the deformation trend and timely adjustment of the corresponding control measures, so as to guide the construction. It is necessary to ensure the normal operation and safety of the operating tunnel. Under the shield tunnel of Beijing Metro, the safety risk control level is high. In the process of shield tunneling, the subway tunnel is inevitably affected, causing settlement or uplift, and there are potential risks. Based on the example of shield tunneling project, the importance of normative automatic monitoring data to reflect the construction dynamic in real time is studied and analyzed, and the tradition of existing subway section is studied and discussed. The new monitoring means and monitoring methods, combined with the measured data, are used to quantitatively analyze the impact of shield tunneling on the close-through disturbance, and the construction parameters and related control measures are discussed. Based on the measured data, the deformation law of the existing railway structure and the construction technology of the existing railway under shield tunneling are analyzed and studied, which provides data for more and more cross crossing projects, and provides reference for similar projects at home and abroad.
【学位授予单位】：中国地质大学(北京)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U455.43
【参考文献】
相关期刊论文 前7条
1 毛国才,吴壮军;信息化施工技术在城市地下工程中的应用[J];湖南有色金属;2003年03期
2 张舵;;地铁盾构区间穿越既有铁路技术措施研究[J];铁道标准设计;2013年02期
3 贾明涛,王李管,潘长良;基于监测数据的边坡位移可视化分析系统[J];岩石力学与工程学报;2003年08期
4 孙岳崧,濮家骝,李广信;不同应力路径对砂土应力—应变关系影响[J];岩土工程学报;1987年06期
5 刘国彬,侯学渊;软土的卸荷模量[J];岩土工程学报;1996年06期
6 魏汝龙;开挖卸载与被动土压力计算[J];岩土工程学报;1997年06期
7 邵华,张子新;盾构近距离穿越施工对已运营隧道的扰动影响分析[J];岩土力学;2004年S2期
，本文编号：2257873
本文链接：https://www.wllwen.com/kejilunwen/daoluqiaoliang/2257873.html
