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On condition of single-time intersection of two trains, pore water pressure, deformation and principle stress of the typical section characteristic points of junction between the connected aisle and tunnel was emphatically analyzed. The results show that: under train vibration load, the closer the soil layer from the arch bottom, the larger the PPR, but all are smaller than 1, which still cannot reach the condition of liquefaction; the maximum displacement of lining appears at the arch bottom, of which the value is 0.16 mm; the maximum tension-compression stress of lining are all smaller than its design value of corresponding strength, which shows that the lining is safe under train vibration load., authors=SHI Chenghua, LIU Qiang, PENG Limin, YANG Weichao, authorsList=SHI Chenghua;LIU Qiang;PENG Limin;YANG Weichao, authorCompany=School of Civil Engineering, Central South University, Changsha, 410075, China, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=LRaQwNGYy+3mJVMXxK975w==, pdfFileSize=1282086, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, 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科技导报
|研究论文
2013
, 31
(35) :
19
-23
联络通道与主隧道连接处列车振动响应分析
全屏
施成华, 刘强, 彭立敏, 杨伟超
作者信息
Analysis of Dynamic Responses of Junction of Connected Aisle and Tunnel Subjected to Train Vibrating Load
SHI Chenghua, LIU Qiang, PENG Limin, YANG Weichao
Affiliations
School of Civil Engineering, Central South University, Changsha, 410075, China
出版时间: 2013-12-18
doi: 10.3981/j.issn.1000-7857.2013.35.002
文章导航
基于有效应力分析法，运用有限差分程序FLAC3D建立了盾构隧道主隧道、联络通道、地层相互作用三维计算模型。分析了两辆列车单次交汇运营条件下，联络通道与隧道结构连接处典型断面特征点处土层孔隙水压力、盾构隧道衬砌结构变形及主应力变化。计算结果表明：在列车振动荷载作用下离隧道拱底越近的土层，孔隙水压力与初始有效应力的比值越大，但均小于1，土体尚未达到发生液化的条件；衬砌结构位移最大值出现在盾构隧道拱底，为0.16mm；衬砌结构拉、压应力最大值均未超过结构抗拉、抗压强度设计值，表明衬砌结构在列车振动荷载作用下是安全的。
盾构隧道
/
联络通道
/
列车振动荷载
/
有效应力分析法
Based on effective stress analysis method, the main tunnel, connected aisle and formation interaction three-dimensional calculation model was proposed by finite difference program FLAC3D. On condition of single-time intersection of two trains, pore water pressure, deformation and principle stress of the typical section characteristic points of junction between the connected aisle and tunnel was emphatically analyzed. The results show that: under train vibration load, the closer the soil layer from the arch bottom, the larger the PPR, but all are smaller than 1, which still cannot reach the condition of liquefaction; the maximum displacement of lining appears at the arch bottom, of which the value is 0.16 mm; the maximum tension-compression stress of lining are all smaller than its design value of corresponding strength, which shows that the lining is safe under train vibration load.
shield tunnel
/
connected aisle
/
train vibrating load
/
effective stress analysis method
施成华;刘强;彭立敏;杨伟超.
联络通道与主隧道连接处列车振动响应分析.
科技导报,
2013
, 31
(35)
: 19
-23
.
DOI: 10.3981/j.issn.1000-7857.2013.35.002
SHI Chenghua;LIU Qiang;PENG Limin;YANG Weichao.
Analysis of Dynamic Responses of Junction of Connected Aisle and Tunnel Subjected to Train Vibrating Load[J].
Science & Technology Review ,
2013
, 31
(35)
: 19
-23
.
DOI: 10.3981/j.issn.1000-7857.2013.35.002
2013年第31卷第35期
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文章信息
doi: 10.3981/j.issn.1000-7857.2013.35.002
接收时间：2013-04-24
首发时间：2013-12-18
出版时间：2013-12-18
收稿日期：2013-04-24
修回日期：2013-10-10
https://castjournals.cast.org.cn/joweb/kjdb/CN/10.3981/j.issn.1000-7857.2013.35.002
引用本文
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2种不同金属材料的力学参数
科 属数 种数 占总种数比例 属 种数 占总种数比例 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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