济南东舍坊深基坑工程多种支护方式及变形对比分析
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摘要
在济南东舍坊项目深基坑工程中,同一深基坑支护工程采用桩锚、悬臂桩、复合土钉墙3种支护方式。对基坑支护设计、监测等内容进行了介绍。监测结果表明,3种支护方式都能满足基坑的安全性要求,符合设计;说明3种支护方式应用于同一深基坑中效果非常好,同时节省了工程造价,缩短了工期。通过变形对比分析,对于本基坑而言,桩锚支护对控制边坡变形效果最好,悬臂桩次之,复合土钉墙最不利。
In the Jinan Dongshefang deep foundation pit works, three kinds of support methods were used in the same support project: the pile-anchor, the cantilever pile, and the composite soil nailing wall. The design and monitoring of the foundation pit support are introduced. The monitoring results show that all three support methods can meet the safety requirements of the foundation pit and meet the design requirements; indicating that the three support methods applied to the same deep foundation pit worked very well, saved the project cost, and cut short the construction period. Comparison of deformation demonstrates that the pile-anchor support has the best effect on controlling the deformation of the slope, followed by the cantilever pile; while the composite soil nailing wall is the most disadvantageous.
In the Jinan Dongshefang deep foundation pit works, three kinds of support methods were used in the same support project: the pile-anchor, the cantilever pile, and the composite soil nailing wall. The design and monitoring of the foundation pit support are introduced. The monitoring results show that all three support methods can meet the safety requirements of the foundation pit and meet the design requirements; indicating that the three support methods applied to the same deep foundation pit worked very well, saved the project cost, and cut short the construction period. Comparison of deformation demonstrates that the pile-anchor support has the best effect on controlling the deformation of the slope, followed by the cantilever pile; while the composite soil nailing wall is the most disadvantageous.
引文
[1] 刘建航,候学渊.基坑工程手册[M].北京:中国建筑工业出版社,1997.LIU Jianhang,HOU Xueyuan.Foundation pit engineering manual[M].Beijing:China Architecture & Building Press,1997.
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[3] JGJ 120-2012,建筑基坑支护技术规范[S].JGJ 120-2012,Technical specification for retaining and protection of building foundation excavations[S].
[4] 赵继正.对多种围护方式相结合的基坑支护方案评价[J].建筑施工,2009,31(5):341-346.ZHAO Jizheng.Evaluation of foundation pit excavation proposals with multiple support types[J].Building Construction,2009,31(5):341-346.
[5] 熊赞民,高全臣,陆伟,等.多种支护方式在深基坑工程中的综合应用[J].建筑科学,2008,24(3):75-77.XIONG Zanmin,GAO Quanchen,LU Wei,et al.Application of supporting techniques for deep foundation pit[J].Building Science,2008,24(3):75-77.
[6] 王财文,何思力,聂亚陆,等.多种支护方式在某商住楼基坑中的应用[J].施工技术,2009,38(S1):176-179.WANG Caiwen,HE Sili,NIE Yalu,et al.Application of various supporting methods for foundation excavation of commercial & residential building[J].Construction Technology,2009,38(S1):176-179.
[7] 赵益良,简青松.多种支护方式在深基坑施工中的应用[J].山西建筑,2005,31(11):62-63.ZHAO Yiliang,JIAN Qingsong.Application of various support methods in deep foundation pit construction[J].Shanxi Architecture,2005,31(11):62-63.
[8] 贺春,徐建平,颉飞云.多种基坑支护方式在同一工程中的应用[J].工业建筑,2011,41(S1):530-533.HE Chun,XU Jianping,JIE Feiyun.Application of various foundation pit support methods in the same project[J].Industrial Construction,2011,41(S1):530-533.
[9] 张锋.多种基坑支护方式在某工程中的应用[J].山西建筑,2002,28(12):46-47.ZHANG Feng.Application of various foundation pit support methods in a project[J].Shanxi Architecture,2002,28(12):46-47.
[10] 江义,薛社社.多种深基坑支护方式的组合应用的施工质量控制——芜湖站东广场地下空间工程深基坑支护应用[J].价值工程,2015,(4):144-146.JIANG Yi,XUE Sheshe.Construction quality control of combined application of multiple deep foundation pit supporting ways:application in the underground space construction deep foundation pit supporting in the east square of Wuhu Station[J].Value Engineering,2015,(4):144-146.
[11] 徐勇,杨挺,王心联.桩锚支护体系在大型深基坑工程中的应用[J].地下空间与工程学报,2006,2(4):646-649,665.XU Yong,YANG Ting,WANG Xinlian.Application of the anchor-pile retaining structure in the large foundation pit engineering[J].Chinese Journal of Underground Space and Engineering,2006,2(4):646-649,665.
[12] 吴文,徐松林,周劲松,等.深基坑桩锚支护结构受力和变形特性研究[J].岩石力学与工程学报,2001,20(3):399-399.WU Wen,XU Songlin,ZHOU Jinsong,et al.Study on mechanical and deformation characteristics of pile-anchor support structure for deep foundation pit[J].Chinese Journal of Rock Mechanics and Engineering,2001,20(3):399-399.
[13] 严薇,曾友谊,王维说.深基坑桩锚支护结构变形和内力分析方法探讨[J].重庆大学学报(自然科学版),2008,31(3):344-348.YAN Wei,ZENG Youyi,WANG Weishuo.Analytic method of discussion on deformation and inner force of the pile-anchor structure of deep excavation under construction[J].Journal of Chongqing University (Natural Science Edition),2008,31(3):344-348.
[14] 金亚兵,刘吉波.基坑支护设计中的若干问题探讨[J].岩石力学与工程学报,2009,28(S2):3844-3849.JIN Yabing,LIU Jibo.Discussion on several problems in the design of foundation pit support[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(S2):3844-3849.
[15] 李芳,李强,于元峰,等.桩锚支护结构设计及支护结构变形监测分析[J].探矿工程(岩土钻掘工程),2015,42(4):53-57,62.LI Fang,LI Qiang,YU Yuanfeng,et al.Design of pile-anchor retaining structure and the analysis on its deformation monitoring[J].Exploration Engineering (Rock & Soil Drilling and Tunneling),2015,42(4):53-57,62.
[16] DBJ 14-047-2007,复合土钉墙施工及验收规范[S].DBJ 14-047-2007,Code for construction and acceptance of composite soil nailing wall[S].
[17] 赵慎中,宋珪,江建华.二次注浆复合土钉墙在超深基坑支护中的应用[J].探矿工程(岩土钻掘工程),2012,39(11):51-53.ZHAO Shenzhong,SONG Gui,JIANG Jianhua.Application of secondary grouting composite soil nailing wall in deep foundation pit bracing[J].Exploration Engineering (Rock & Soil Drilling and Tunneling),2012,39(11):51-53.
[18] GB 50497-2009,建筑基坑工程监测技术规范[S].GB 50497-2009,Technical code for monitoring of building foundation pit engineering[S].
[19] 刘利平,刘晶晶,张鹏,等.土钉和桩锚组合式支护体系受力和变形的数值模拟[J].探矿工程(岩土钻掘工程),2014,41(8):53-57.LIU Liping,LIU Jingjing,ZHANG Peng,et al.Numerical simulation of stress and deformation on combined retaining system of soil nails and pile-anchors[J].Exploration Engineering (Rock & Soil Drilling and Tunneling),2014,41(8):53-57.
[20] 欧阳劲.某基坑桩锚支护结构监测分析[J].铁道科学与工程学报,2013,10(1):87-91.OUYANG Jin.Monitoring and analysis of a deep foundation pit with pile-anchor retaining structure[J].Journal of Railway Science and Engineering,2013,10(1):87-91.
[21] 王超,朱勇,张强勇,等.深基坑桩锚支护体系的监测分析与稳定性评价[J].岩石力学与工程学报,2014,33(S1):2918-2923.WANG Chao,ZHU Yong,ZHANG Qiangyong,et al.Monitoring analysis and stability evaluation of pile-bolt support system in deep pit[J].Chinese Journal of Rock Mechanics and Engineering,2014,33(S1):2918-2923.
[22] 黄敏,刘小丽.土岩组合地区桩锚支护基坑开挖地表沉降分析[J].岩土工程学报,2012,34(S1):571-575.HUANG Min,LIU Xiaoli.Ground settlement induced by excavation of pile-anchor retaining foundation pits in soil-rock mixed areas[J].Chinese Journal of Geotechnical Engineering,2012,34(S1):571-575.
[23] 解磊,董礼.深基坑放坡-桩锚联合支护结构的监测及数值模拟[J].沈阳建筑工程学院学报(自然科学版),2015,31(2):228-235.XIE Lei,DONG Li.Monitoring and numerical simulation of slope grading and pile-anchor combined support structure for deep foundation pit[J].Journal of Shenyang Jianzhu University (Natural Science),2015,31(2):228-235.
[24] 时伟,刘继明,章伟.深基坑桩锚支护体系水平位移试验研究[J].岩石力学与工程学报,2003,22(S1):2355-2358.SHI Wei,LIU Jiming,ZHANG Wei.Testing study on horizontal displacement of anchor-pile bracing structure for deep foundation pit[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(S1):2355-2358.
[2] 曾宪民,李世丁,王作民.土钉支护设计与施工手册[M].北京:中国建筑工业出版社,2002.ZENG Xianmin,LI Shiding,WANG Zuomin.Design and construction manual of soil nailing support[M].Beijing:China Architecture & Building Press,2002.
[3] JGJ 120-2012,建筑基坑支护技术规范[S].JGJ 120-2012,Technical specification for retaining and protection of building foundation excavations[S].
[4] 赵继正.对多种围护方式相结合的基坑支护方案评价[J].建筑施工,2009,31(5):341-346.ZHAO Jizheng.Evaluation of foundation pit excavation proposals with multiple support types[J].Building Construction,2009,31(5):341-346.
[5] 熊赞民,高全臣,陆伟,等.多种支护方式在深基坑工程中的综合应用[J].建筑科学,2008,24(3):75-77.XIONG Zanmin,GAO Quanchen,LU Wei,et al.Application of supporting techniques for deep foundation pit[J].Building Science,2008,24(3):75-77.
[6] 王财文,何思力,聂亚陆,等.多种支护方式在某商住楼基坑中的应用[J].施工技术,2009,38(S1):176-179.WANG Caiwen,HE Sili,NIE Yalu,et al.Application of various supporting methods for foundation excavation of commercial & residential building[J].Construction Technology,2009,38(S1):176-179.
[7] 赵益良,简青松.多种支护方式在深基坑施工中的应用[J].山西建筑,2005,31(11):62-63.ZHAO Yiliang,JIAN Qingsong.Application of various support methods in deep foundation pit construction[J].Shanxi Architecture,2005,31(11):62-63.
[8] 贺春,徐建平,颉飞云.多种基坑支护方式在同一工程中的应用[J].工业建筑,2011,41(S1):530-533.HE Chun,XU Jianping,JIE Feiyun.Application of various foundation pit support methods in the same project[J].Industrial Construction,2011,41(S1):530-533.
[9] 张锋.多种基坑支护方式在某工程中的应用[J].山西建筑,2002,28(12):46-47.ZHANG Feng.Application of various foundation pit support methods in a project[J].Shanxi Architecture,2002,28(12):46-47.
[10] 江义,薛社社.多种深基坑支护方式的组合应用的施工质量控制——芜湖站东广场地下空间工程深基坑支护应用[J].价值工程,2015,(4):144-146.JIANG Yi,XUE Sheshe.Construction quality control of combined application of multiple deep foundation pit supporting ways:application in the underground space construction deep foundation pit supporting in the east square of Wuhu Station[J].Value Engineering,2015,(4):144-146.
[11] 徐勇,杨挺,王心联.桩锚支护体系在大型深基坑工程中的应用[J].地下空间与工程学报,2006,2(4):646-649,665.XU Yong,YANG Ting,WANG Xinlian.Application of the anchor-pile retaining structure in the large foundation pit engineering[J].Chinese Journal of Underground Space and Engineering,2006,2(4):646-649,665.
[12] 吴文,徐松林,周劲松,等.深基坑桩锚支护结构受力和变形特性研究[J].岩石力学与工程学报,2001,20(3):399-399.WU Wen,XU Songlin,ZHOU Jinsong,et al.Study on mechanical and deformation characteristics of pile-anchor support structure for deep foundation pit[J].Chinese Journal of Rock Mechanics and Engineering,2001,20(3):399-399.
[13] 严薇,曾友谊,王维说.深基坑桩锚支护结构变形和内力分析方法探讨[J].重庆大学学报(自然科学版),2008,31(3):344-348.YAN Wei,ZENG Youyi,WANG Weishuo.Analytic method of discussion on deformation and inner force of the pile-anchor structure of deep excavation under construction[J].Journal of Chongqing University (Natural Science Edition),2008,31(3):344-348.
[14] 金亚兵,刘吉波.基坑支护设计中的若干问题探讨[J].岩石力学与工程学报,2009,28(S2):3844-3849.JIN Yabing,LIU Jibo.Discussion on several problems in the design of foundation pit support[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(S2):3844-3849.
[15] 李芳,李强,于元峰,等.桩锚支护结构设计及支护结构变形监测分析[J].探矿工程(岩土钻掘工程),2015,42(4):53-57,62.LI Fang,LI Qiang,YU Yuanfeng,et al.Design of pile-anchor retaining structure and the analysis on its deformation monitoring[J].Exploration Engineering (Rock & Soil Drilling and Tunneling),2015,42(4):53-57,62.
[16] DBJ 14-047-2007,复合土钉墙施工及验收规范[S].DBJ 14-047-2007,Code for construction and acceptance of composite soil nailing wall[S].
[17] 赵慎中,宋珪,江建华.二次注浆复合土钉墙在超深基坑支护中的应用[J].探矿工程(岩土钻掘工程),2012,39(11):51-53.ZHAO Shenzhong,SONG Gui,JIANG Jianhua.Application of secondary grouting composite soil nailing wall in deep foundation pit bracing[J].Exploration Engineering (Rock & Soil Drilling and Tunneling),2012,39(11):51-53.
[18] GB 50497-2009,建筑基坑工程监测技术规范[S].GB 50497-2009,Technical code for monitoring of building foundation pit engineering[S].
[19] 刘利平,刘晶晶,张鹏,等.土钉和桩锚组合式支护体系受力和变形的数值模拟[J].探矿工程(岩土钻掘工程),2014,41(8):53-57.LIU Liping,LIU Jingjing,ZHANG Peng,et al.Numerical simulation of stress and deformation on combined retaining system of soil nails and pile-anchors[J].Exploration Engineering (Rock & Soil Drilling and Tunneling),2014,41(8):53-57.
[20] 欧阳劲.某基坑桩锚支护结构监测分析[J].铁道科学与工程学报,2013,10(1):87-91.OUYANG Jin.Monitoring and analysis of a deep foundation pit with pile-anchor retaining structure[J].Journal of Railway Science and Engineering,2013,10(1):87-91.
[21] 王超,朱勇,张强勇,等.深基坑桩锚支护体系的监测分析与稳定性评价[J].岩石力学与工程学报,2014,33(S1):2918-2923.WANG Chao,ZHU Yong,ZHANG Qiangyong,et al.Monitoring analysis and stability evaluation of pile-bolt support system in deep pit[J].Chinese Journal of Rock Mechanics and Engineering,2014,33(S1):2918-2923.
[22] 黄敏,刘小丽.土岩组合地区桩锚支护基坑开挖地表沉降分析[J].岩土工程学报,2012,34(S1):571-575.HUANG Min,LIU Xiaoli.Ground settlement induced by excavation of pile-anchor retaining foundation pits in soil-rock mixed areas[J].Chinese Journal of Geotechnical Engineering,2012,34(S1):571-575.
[23] 解磊,董礼.深基坑放坡-桩锚联合支护结构的监测及数值模拟[J].沈阳建筑工程学院学报(自然科学版),2015,31(2):228-235.XIE Lei,DONG Li.Monitoring and numerical simulation of slope grading and pile-anchor combined support structure for deep foundation pit[J].Journal of Shenyang Jianzhu University (Natural Science),2015,31(2):228-235.
[24] 时伟,刘继明,章伟.深基坑桩锚支护体系水平位移试验研究[J].岩石力学与工程学报,2003,22(S1):2355-2358.SHI Wei,LIU Jiming,ZHANG Wei.Testing study on horizontal displacement of anchor-pile bracing structure for deep foundation pit[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(S1):2355-2358.