超高层建筑结构构筑及使用阶段对紧邻地铁运营隧道的影响分析
发布时间：2018-10-29 10:57
【摘要】：随着城市发展脚步加快,在大城市不可避免地将出现新建高楼大厦紧邻既有地下结构施工的情况。目前国内外相关工程资料较少,对于超高层建筑施工对邻近地下结构物的影响分析尚不多。本文依托北京市国家金融信息大厦(高度360m)紧邻地铁运营隧道施工的实际工程背景,采用MIDAS/GTS通用岩土有限元分析软件对本工程进行了三维数值模拟,针对超高层建筑结构构筑及使用阶段对紧邻地铁运营隧道产生的影响进行了分析研究,得出了隧道变形的一些发展规律。本文的主要工作如下： (1)综述国内外研究现状,指出传统研究方法的不足,尤其是在考虑上部结构受到风荷载时引发隧道的附加变形,国内外对于这方面尚未有明确的研究。 (2)基于本文的工程情况,结合国内相关规范标准,提出近接地铁运营隧道施工控制标准。 (3)对于超高层建筑结构构筑及使用阶段对地铁运营隧道的影响进行了分析,在结构构筑阶段,隧道主要发生竖向沉降,水平位移较小。在建筑使用阶段,考虑风荷载情况下,隧道的沉降和水平变形都会发生变化。 (4)针对建筑与隧道距离,建筑桩长,建筑高度等参数进行了对比分析,总结了隧道保护措施。
[Abstract]:With the acceleration of urban development, it is inevitable that the construction of new high-rise buildings next to the existing underground structure will occur in large cities. At present, there are few related engineering data at home and abroad, and the analysis of the influence of super high-rise building construction on adjacent underground structures is still rare. Based on the actual engineering background of Beijing National Financial Information Building (360m) adjacent to the subway operating tunnel construction, the 3D numerical simulation of the project is carried out by using the MIDAS/GTS general geotechnical finite element analysis software. Based on the analysis of the influence of the construction and use of super high-rise building structure on the adjacent subway operating tunnel, some development rules of tunnel deformation are obtained. The main work of this paper is as follows: (1) the present research situation at home and abroad is summarized, and the shortcomings of the traditional research methods are pointed out, especially the additional deformation of the tunnel caused by the consideration of the wind load on the superstructure. There is no clear research on this aspect at home and abroad. (2) based on the engineering situation in this paper, the construction control standard of the adjacent subway tunnel is put forward. (3) the influence of the construction of super-tall building structure and its use on the subway operating tunnel is analyzed. In the structural construction stage, the tunnel mainly occurs vertical settlement and the horizontal displacement is small. In the stage of building use, the settlement and horizontal deformation of the tunnel will change when wind load is taken into account. (4) according to the distance between the building and the tunnel, the length of the pile and the height of the building, the protective measures of the tunnel are summarized.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U456.3
本文编号：2297497
[Abstract]:With the acceleration of urban development, it is inevitable that the construction of new high-rise buildings next to the existing underground structure will occur in large cities. At present, there are few related engineering data at home and abroad, and the analysis of the influence of super high-rise building construction on adjacent underground structures is still rare. Based on the actual engineering background of Beijing National Financial Information Building (360m) adjacent to the subway operating tunnel construction, the 3D numerical simulation of the project is carried out by using the MIDAS/GTS general geotechnical finite element analysis software. Based on the analysis of the influence of the construction and use of super high-rise building structure on the adjacent subway operating tunnel, some development rules of tunnel deformation are obtained. The main work of this paper is as follows: (1) the present research situation at home and abroad is summarized, and the shortcomings of the traditional research methods are pointed out, especially the additional deformation of the tunnel caused by the consideration of the wind load on the superstructure. There is no clear research on this aspect at home and abroad. (2) based on the engineering situation in this paper, the construction control standard of the adjacent subway tunnel is put forward. (3) the influence of the construction of super-tall building structure and its use on the subway operating tunnel is analyzed. In the structural construction stage, the tunnel mainly occurs vertical settlement and the horizontal displacement is small. In the stage of building use, the settlement and horizontal deformation of the tunnel will change when wind load is taken into account. (4) according to the distance between the building and the tunnel, the length of the pile and the height of the building, the protective measures of the tunnel are summarized.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U456.3
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