地面高层建筑对重庆轨道三号线隧道的影响研究
发布时间：2018-07-13 08:17
【摘要】：重庆轨道三号线是连接巴南鱼洞和江北机场的重要交通枢纽干线,路线从地下穿越了若干高层建筑,或跨越两江,重庆轨道三号线的设计和施工遇到了严峻的考验。论文主要研究了地面高层建筑对重庆轨道三号线隧道的影响,建立了三维地质模型和有限元数值分析模型,分析地面高层建筑对地下隧道的影响,判断和评估隧道结构的安全程度。论文主要研究内容为:(1)对受影响段隧道的岩层进行钻孔取样,并对试样进行了岩土室内试验,利用钻孔进行声波测试,和原位高清成像测试,以查明受影响段隧道工程地质的详细情况;(2)利用重庆市勘测院自主研发的城市地下空间信息集成管理平台,对受影响段隧道的地层构造建立工程地质三维模型,研究地面高层建筑对地下隧道的影响情况;(3)根据对受影响段隧道的衬砌进行混凝土强度、碳化深度和衬砌裂缝检测和衬砌渗水观测数据,建立高层建筑对轨道三号线的影响的有限元数值分析模型,并进行数值模拟分析,得到隧道衬砌结构在高层建筑的影响下的受力和位移变化情况,据此评估地下隧道结构的安全性。通过某地产项目高层建筑施工对轨道交通三号线龙头寺至童家院子区间隧道相互影响的分析调查和数值模拟计算可以得到高层建筑的施工对隧道产生了一定影响,但仍在安全可控程度范围以内。如果高层建筑的高度继续增加,应采取妥当技术措施,严格控制隧道衬砌结构应力及轨道倾斜变形,确保轨道交通三号线的安全运营。
[Abstract]:Chongqing track No. 3 is an important transportation hub connecting Banan Yudong and Jiangbei Airport. The route has crossed several high-rise buildings or crossed two rivers from underground. The design and construction of Chongqing track No. 3 have met a severe test. The paper mainly studies the influence of the ground high-rise building on the tunnel of Chongqing track Line 3, establishes the three-dimensional geological model and the finite element numerical analysis model, and analyzes the influence of the ground high-rise building on the underground tunnel. To judge and evaluate the safety of tunnel structure. The main contents of this paper are as follows: (1) sampling the rock strata of the affected section of the tunnel, and carrying out the laboratory tests of the samples in geotechnical field, using the boreholes to test the acoustic waves, and the in-situ high-definition imaging tests. In order to find out the detailed situation of the tunnel engineering geology in the affected section, (2) using the integrated management platform of urban underground space information developed by Chongqing Survey Institute, the three-dimensional engineering geological model of the affected section tunnel's stratigraphic structure is established. The influence of ground high-rise building on underground tunnel is studied. (3) according to the data of concrete strength, carbonation depth, lining crack detection and lining seepage observation, The finite element numerical analysis model of the influence of high-rise building on track No. 3 is established, and numerical simulation analysis is carried out to obtain the change of stress and displacement of tunnel lining structure under the influence of high-rise building. The safety of underground tunnel structure is evaluated accordingly. Through the analysis, investigation and numerical simulation of the influence of the construction of high-rise building in a real estate project on the tunnel between the faucet temple and Tongjia courtyard of rail transit line No. 3, it can be concluded that the construction of the high-rise building has a certain influence on the tunnel. But it is still within the range of safety and control. If the height of high-rise building continues to increase, appropriate technical measures should be taken to strictly control the stress of tunnel lining structure and track tilt deformation to ensure the safe operation of Line 3 of rail transit.
【学位授予单位】：重庆交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U452;U456.3
本文编号：2118752
[Abstract]:Chongqing track No. 3 is an important transportation hub connecting Banan Yudong and Jiangbei Airport. The route has crossed several high-rise buildings or crossed two rivers from underground. The design and construction of Chongqing track No. 3 have met a severe test. The paper mainly studies the influence of the ground high-rise building on the tunnel of Chongqing track Line 3, establishes the three-dimensional geological model and the finite element numerical analysis model, and analyzes the influence of the ground high-rise building on the underground tunnel. To judge and evaluate the safety of tunnel structure. The main contents of this paper are as follows: (1) sampling the rock strata of the affected section of the tunnel, and carrying out the laboratory tests of the samples in geotechnical field, using the boreholes to test the acoustic waves, and the in-situ high-definition imaging tests. In order to find out the detailed situation of the tunnel engineering geology in the affected section, (2) using the integrated management platform of urban underground space information developed by Chongqing Survey Institute, the three-dimensional engineering geological model of the affected section tunnel's stratigraphic structure is established. The influence of ground high-rise building on underground tunnel is studied. (3) according to the data of concrete strength, carbonation depth, lining crack detection and lining seepage observation, The finite element numerical analysis model of the influence of high-rise building on track No. 3 is established, and numerical simulation analysis is carried out to obtain the change of stress and displacement of tunnel lining structure under the influence of high-rise building. The safety of underground tunnel structure is evaluated accordingly. Through the analysis, investigation and numerical simulation of the influence of the construction of high-rise building in a real estate project on the tunnel between the faucet temple and Tongjia courtyard of rail transit line No. 3, it can be concluded that the construction of the high-rise building has a certain influence on the tunnel. But it is still within the range of safety and control. If the height of high-rise building continues to increase, appropriate technical measures should be taken to strictly control the stress of tunnel lining structure and track tilt deformation to ensure the safe operation of Line 3 of rail transit.
【学位授予单位】：重庆交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U452;U456.3
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