岩土力学2011，Vol.32Issue(12)：3701-3707,7.
管幕预筑隧道地表沉降分析
Analysis of surface subsidence of tunnel built by pipe-roof pre-construction method
摘要
Abstract
Underground station of Shenyang Metro line 2 is the first underground engineering built by pipe-roof pre-construction method (PPM). The surface subsidence caused by the construction was monitored; and revised Peck model was developed to predict the subsidence. Some conclusions are drawn as follows. (1) The predicted result is consistent well with the monitoring data. (2) Surface subsidence caused by tunnel construction with PPM is characterized by the whole subsidence; and the subsidence value is pretty equal to the one of underground structure foundation, and it is effective to control surface subsidence by controlling the the sink of foundation of tunnel structure with PPM. (3) The underground permanent structure built before constructing tunnel with PPM could obviously constraint the surrounding rock with 0.0005%-0.0020% of stratum loss rate and 0.5 of width coefficient of sinking tank. (4) Surface subsidence caused by PPM is much less than the normal construction method, which has significantly social and environmental benefits; and this method is suitable to construct the underground urban traffic hub and tunnel projects that crossing traffic trunk lines and is worth to be studied and promoted further.关键词
管幕预筑法/地面沉降/隧道/Peck法/新管幕法/管幕法/顶管Key words
pipe-roof pre-construction method/ surface subsidence/ tunnel/ Peck method/ new tubular roof method/ tubular roof method/ pipe jacking分类
交通工程引用本文复制引用
黎永索,张可能,黄常波,李钟,邓美龙..管幕预筑隧道地表沉降分析[J].岩土力学,2011,32(12):3701-3707,7.基金项目
国家自然科学基金项目(No.50978036) （No.50978036）
中国建筑股份有限公司科研项目(No.CSCEC-2009-Z-19) （No.CSCEC-2009-Z-19）
湖南省自然科学基金资助项目(No.11JJ4031) （No.11JJ4031）
湖南省教育厅一般研究项目(No.11C0246). （No.11C0246）
