[1]关天伟,魏焕卫*.地铁车辆运行对周围土体与建筑影响的研究[J].山东建筑大学学报,2019,34(06):50-55.[doi:10.12077/sdjz.2019.06.009]
 GUAN Tianwei,WEI Huanwei*.Study on the influence of metro vehicle operation on surrounding soil and buildings[J].Journal of Shandong jianzhu university,2019,34(06):50-55.[doi:10.12077/sdjz.2019.06.009]
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地铁车辆运行对周围土体与建筑影响的研究()
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《山东建筑大学学报》[ISSN:1673-7644/CN:37-1449/TU]

卷:
34
期数:
2019年06期
页码:
50-55
栏目:
研究论文
出版日期:
2019-12-01

文章信息/Info

Title:
Study on the influence of metro vehicle operation on surrounding soil and buildings
文章编号:
1673-7644(2019)06-0050-06
作者:
关天伟魏焕卫*
(山东建筑大学 土木工程学院,山东 济南 250101)
Author(s):
GUAN TianweiWEI Huanwei*
(School of Civil Engineering, Shandong Jianzhu University, Jinan 250014, China)
关键词:
地铁运营动荷载激振力函数Plaxis3D沉降加速度响应
Keywords:
metro dynamic load excitation force function Plaxis 3D settlement acceleration response
分类号:
TU 447
DOI:
10.12077/sdjz.2019.06.009
文献标志码:
A
摘要:
随着中国交通建设的发展,地铁成为城市交通最重要的交通工具之一。地铁运营期间,车辆运行产生的动荷载造成临近土体与建筑物沉降,影响地铁的安全运行以及地铁沿线构筑物的正常使用。文章以数波叠加形式的激振力函数表示列车荷载,采用Plaxis3D软件建立模型,分别对不同隧道埋深、隧道与建筑物水平距离、建筑物荷载3种工况进行模拟分析,研究地铁车辆运行对周围土体与建筑的影响。结果表明:隧道下方土体沉降随着动力时间的增加而增大,其增加速率逐渐减小,影响范围在隧道下方-5 m范围内;地表建筑物沉降随水平距离增加而增大,在一定区域内出现振动响应局部放大现象;隧道埋深<-11 m时,随深度的增加,地表沉降值变化较小;建筑物荷载对地表沉降有约束作用,但改变荷载大小后该约束作用变化较小。
Abstract:
With the development of traffic construction in China, the metro has become one of the most important means of transportation in urban traffic. During the operation of the subway, the dynamic loads generated by vehicles cause settlement of adjacent soil and buildings, which affects the safe operation of the subway and the normal use of the structures along the subway. In this paper, the train load is expressed by the excitation force function in the form of wave superposition, and the model is established by Plaxis3D software. The three working conditions of different tunnel depth, horizontal distance between tunnel and building and building load are simulated and analyzed respectively, and the influence of metro vehicle operation on surrounding soil and buildings is studied. The results show thatthe settlement of soil under the tunnel increases with the increase of dynamic time, and the increase rate decreases gradually. The influence range is within -5 meters below the tunnel. The subsidence increases with the increase of horizontal distance, and the phenomenon of "local amplification" of vibration response occurs in a certain area. When the depth of tunnel is below -11 meters, the subsidence value changes slightly with the depth increasing. Building load has a restraint effect on subsidence, but the restraint effect changes slightly when the load is changed.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-10-18 基金项目:山东电力工程咨询院有限公司横向课题项目(K22014016) 作者简介:关天伟(1995- ),男,在读硕士,主要从事地基基础与盾构隧道等方面的研究.E-mail:792395751@qq. com 通讯作者*:魏焕卫(1974- ),男,教授,博士,主要从事岩土工程共同作用和变形控制等方面的研究.E-mail: 13181718169@163.com
更新日期/Last Update: 2019-12-05