ANALYSIS OF EXCAVATION MONITORING FOR DEEP FOUNDATION PIT IN XIAMEN WUCUN TUNNEL
PANG Tiezheng1，2，FANG Yongsheng3，QIN Weimin4
(1. Engineering Research Center of Tunnel and Underground Engineering，Ministry of Education，Beijing Jiaotong University，Beijing 100044，China；2. Xiamen Road and Bridge Construction Group Co.，Ltd.，Xiamen，Fujian 361026，China；3. Water Resources Bureau of Xianning，Xianning，Hubei 437100，China；4. State Key Laboratory of Geomechanics and Geotechnical Engineering，Institute of Rock and Soil Mechanics，Chinese Academy of Sciences，Wuhan，Hubei 430071，China)
Abstract：Taking the deep foundation pit of open-cut tunnel in Xiamen City for example，safety monitoring is carried out on the surrounding environment as well as on supporting structure itself during the construction period. The monitoring measures for the safe construction of deep foundation pit mainly include tour check，settlement，horizontal displacement，deep displacements，underground water level，axial stress of anchor and blasting vibration，etc.. Combined with the geology condition and in-situ construction environment，the monitoring results are comprehensively analyzed on the surrounding environment as well as on supporting structure. Research results show that geology condition is the main factor that causes the difference of deformation distribution. Large displacement will appear after the creation of new free face，so the stability of the retaining pile are affected. When the blasting excavation is applied on the deep foundation pit，the selection of design parameters are demanded to further verify their rationality. Monitoring and analysis are carried on dangerous situation such as high displacement velocity of the supporting pile，landslide and collapse of slope etc.；and the monitoring results show that emergency measures relevant to the dangerous situation are reasonable and effective.
逄铁铮1，2，方勇生3，覃卫民4. 厦门梧村隧道明挖深基坑施工监测分析[J]. 岩石力学与工程学报, 2013, 32(s1): 2751-2757.
PANG Tiezheng1，2，FANG Yongsheng3，QIN Weimin4. ANALYSIS OF EXCAVATION MONITORING FOR DEEP FOUNDATION PIT IN XIAMEN WUCUN TUNNEL. , 2013, 32(s1): 2751-2757.
[1] 中铁大桥勘测设计院有限公司. 厦门市机场路一期工程(莲前至梧村隧道段)工程地质勘察报告[R]. 武汉：中铁大桥勘测设计院有限公司，2006.(China Zhongtie Major Bridge Reconnaissance and Design Institute Co.，Ltd.. Geological survey report of Xiamen airport road project[R]. Wuhan：China Zhongtie Major Bridge Reconnaissance and Design Institute Co.，Ltd.，2006.(in Chinese))
[2] 中华人民共和国行业标准编写组. GJ120—99 建筑基坑支护技术规程[S]. 北京：冶金工业出版社，1999.(The Professional Standards Compilation Group of Peoples Republic of China. JGJ120—99 Technical specification for retaining and protection of building foundation excavation[S]. Beijing：China Metallurgical Industry Press，1999.(in Chinese))
[3] 中华人民共和国国家标准编写组. GB50330—2002 建筑边坡工程技术规范[S]. 北京：冶金工业出版社，2003.(The National Standards Compilation Group of Peoples Republic of China. GB50330—2002 Technical code for building slope engineering[S]. Beijing：China Metallurgical Industry Press，2003.(in Chinese))
[4] 中华人民共和国行业标准编写组. JGJ/T8—97建筑变形测量规程[S]. 北京：中国建筑工业出版社，1998.(The Professional Standards Compilation Group of Peoples Republic of China. JGJ/T8—97 Specifications for building deformation measurements[S]. Beijing：China Architecture and Building Press，1998.(in Chinese))
[5] 中华人民共和国行业标准编写组. JGJ125—99 危险房屋鉴定标准[S]. 北京：中国建筑工业出版社，2000.(The Professional Standards Compilation Group of Peoples Republic of China. JGJ125—99 Standard of dangerous building appraisal[S]. Beijing：China Architecture and Building Press，2000.(in Chinese))
[6] 中华人民共和国国家标准编写组. GB6722—2003 爆破安全规程[S]. 北京：中国标准出版社，2004.(The National Standards Compilation Group of Peoples Republic of China. GB6722—2003 Safety regulations for blasting[S]. Beijing：Standards Press of China，2004.(in Chinese))
[7] 中华人民共和国国家标准编写组. GB50497—2009 建筑基坑工程监测技术规范[S]. 北京：中国计划出版社，2010.(The National Standards Compilation Group of Peoples Republic of China. GB50497—2009 Technical code for monitoring of building excavation engineering[S]. Beijing：China Planning Press，2010.(in Chinese))
[8] 二滩水电开发有限责任公司. 岩土工程安全监测手册[M]. 北京：中国水利水电出版社，1999：98–111.(Ertan Hydropower Development Company Ltd.. Security monitoring manual for geotechnical engineering[M]. Beijing：China Water Power Press，1999：98–111.(in Chinese))
[9] 覃卫民，张照仪，王 浩，等. 武汉团结小区商住楼工程基坑施工监测分析[J]. 岩土工程学报，2006，28(增1)：1 830–1 833.(QIN Weimin，ZHANG Zhaoyi，WANG Hao，et al. Analysis of excavation monitoring for Tuanjie building in Wuhan[J]. Chinese Journal of Geotechnical Engineering，2006，28(Supp.1)：1 830–1 833.(in Chinese))
[10] 陆遐龄. 岩石高边坡爆破开挖对锚固设施的影响[J]. 爆破，2000，17(增1)：147–151.(LU Xialing. Influence of rock high slope explosive excavation on anchored installations[J]. Blasting，2000，17(Supp.1)：147–151.(in Chinese))
[11] 覃卫民，逄铁铮，王 浩，等. 深基坑附近房屋出现裂缝的施工监测分析[J]. 岩石力学与工程学报，2009，28(3)：533–540.(QIN Weimin，PANG Tiezheng，WANG Hao，et al. Analysis of excavation monitoring for house cracking nearby deep pit foundation[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(3)：533–540.(in Chinese))
[12] 邓建辉，李焯芬，葛修润. 岩石边坡松动区与位移反分析[J]. 岩石力学与工程学报，2001，20(2)：171–174.(DENG Jianhui，LEE C F，GE Xiurun. Disturbed zones and displacement back analysis for rock slope[J]. Chinese Journal of Rock Mechanics and Engineering，2001，20(2)：171–174.( in Chinese))
[13] 张军平，邹银生. 基坑位移反分析方法的对比研究[J]. 湖南大学学报：自然科学版，2005，32(1)：52–56.(ZHANG Junping，ZOU Yinsheng. A comparative research of the reverse analyses of deep pit displacement[J]. Journal of Hunan University：Natural Science，2005，32(1)：52–56.(in Chinese))
[14] 周创兵，李典庆. 暴雨诱发滑坡致灾机制与减灾方法研究进展[J].地球科学进展，2009，24(5)：477–487.(ZHOU Chuangbing，LI Dianqing. Advances in rainfall-induced landslides mechanism and risk mitigation[J]. Advances in Earth Science，2009，24(5)：477–487.(in Chinese))
[15] 李德心，何思明，朱兴华，等. 前期有效降雨对滑坡启动影响分析[J]. 灾害学，2011，26(3)：41–45.(LI Dexin，HE Siming，ZHU Xinghua，et al. Analysis of influences of antecedent effective rainfalls on landslide initiation[J]. Journal of Catastrophology，2011，26(3)：41–45.(in Chinese))
2013, Vol. 32 
