Response of the ground and adjacent buildings due to tunnelling in completely weathered granitic soil

被引：35

作者：

Fu, Jinyang ^{[1
,2
]}

Yang, Junsheng ^{[2
]}

Zhang, Xuemin ^{[2
]}

Klapperich, Herbert ^{[1
]}

Abbas, Syed Muntazir ^{[1
]}

机构：

[1] Tech Univ Bergakad Freiberg, Inst Geotech, D-09596 Freiberg, Germany

[2] Cent S Univ, Sch Civil Engn, Changsha 410075, Hunan, Peoples R China

来源：

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY | 2014年 / 43卷

关键词：

Tunnelling; Field monitoring; Ground movement; Building settlement; Damage; MOVEMENTS;

D O I：

10.1016/j.tust.2014.05.022

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The excavation induced ground movements and their impact on adjacent buildings is one of the major concerns for tunnelling in urban areas. This paper presents a case study on the response of the ground and a group of buildings to the construction of a sprayed concrete lining (SCL) subway twin tunnel through completely weathered granitic residual soil in Shenzhen, China. Ground and nearby structures displacements were monitored through extensive field instrumentation. The observed maximum surface settlements exceeded 400 mm, which caused considerable damage to certain buildings. Potential risks of large ground deformation for tunnelling in similar ground condition, with structures nearby, are highlighted. Encouraging effectiveness of the permeable grouting on this ground condition was demonstrated by the distinct Greenfield behaviour at the two monitoring sections. Different responses between Greenfield ground and adjacent structures show an evident soil structure interaction. Piled reinforced concrete frame buildings were found to behave rigidly in response to the tunnelling induced ground movement and to be without visible crack in contrast to masonry wall structures. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：377 / 388

页数：12

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