深基坑支护工程的设计分析及其应用研究
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摘要
建筑工程中的深基坑支护技术近年有了很大的发展。深基坑支护的作用是为了挡土、截水、保证坑底稳定、承担必要的施工荷载、保证地下结构工程的顺利施工。深基坑支护结构虽然是施工期间的临时支护结构,但其选型、计算和施工是否正确,对施工的安全、工期、经济效益有巨大的影响,是高层建筑施工的关键技术之一。
本文首先对深基坑支护结构的工程特点进行了详细的论述,介绍了几种常用深基坑支护的结构类型,由此总结了当前深基坑工程中常用的设计方法。然后介绍了基坑的稳定性理论原理,验算方法及其影响因素。论文介绍了土钉支护的概念,简述了土钉墙的应用范围,分析了土钉的作用机理和土钉支护的特点,研究了复合土钉的概念和特点。通过研究土钉支护结构的计算方法深入分析了深基坑工程设计与施工现状及一些事项。
论文以苏州工业园区月亮湾建屋广场工程为例进行分析,主要是以建屋广场深基坑工程为主要对象,对其基坑施工期间中较为关键的深基坑支护结构设计和施工内容进行研究,通过对该支护方案、设计和实测的数据资料进行归纳整理,分析了土钉墙支护的影响因素,并在此基础上总结一些深基坑土钉墙支护的有效措施和经验教训,提出一些设想和建议,希望能为今后类似工程提供一些借鉴和参考。
Retaining and protect ion of building foundation excavations have great development in recent years. This technology can be used to retain the soil, cut off the water and ensure the bottom of the pit stability in order to assume the necessary load. It also can guarantee the smooth progress of underground structural engineering. The retaining and protection structure of deep excavation pit is temporary structure during the construction. but whether its selection. calculation and construction is correct or not will affect construction security, period and the economic benefits and is one of the key techn0109ieS of the high-rise building construction.
This article firstly featured deep excavation pit support structure in detail and introduce several common types of deep excavation pit support structure so as to sum up the coiiL,,,non design methods of the current deep excavation pit. Then this article introduced the stability theory principles, methods and checking factors of a foundation pit. Three chapter also introduced the concept of the soil nailing, the application of the soil nailing wall on the analysis of the role of soil nails and the characteristics of soil nailing and on the concept and characteristics of the composite soil nails. By studying the method of calculating of the structure of soil nailing, we in-depth analysed design and construction and some of the issues.
Chapter four takes the sample of Yu Liangwan square in Suzhou industrial Park, this article is taking the references of the design and construction of the retaining wall of Jianwu square foundation, to analyze those key elements critical to the soil nailing wall through collecting and studying the supporting plans, designs and monitoring records. Fouthermore, a summary of effective methods and correction actions during deep foundation pit construction is also included in this article. Hopefully, it can be of some help as a reference for any possible similar buildings in future.
本文首先对深基坑支护结构的工程特点进行了详细的论述,介绍了几种常用深基坑支护的结构类型,由此总结了当前深基坑工程中常用的设计方法。然后介绍了基坑的稳定性理论原理,验算方法及其影响因素。论文介绍了土钉支护的概念,简述了土钉墙的应用范围,分析了土钉的作用机理和土钉支护的特点,研究了复合土钉的概念和特点。通过研究土钉支护结构的计算方法深入分析了深基坑工程设计与施工现状及一些事项。
论文以苏州工业园区月亮湾建屋广场工程为例进行分析,主要是以建屋广场深基坑工程为主要对象,对其基坑施工期间中较为关键的深基坑支护结构设计和施工内容进行研究,通过对该支护方案、设计和实测的数据资料进行归纳整理,分析了土钉墙支护的影响因素,并在此基础上总结一些深基坑土钉墙支护的有效措施和经验教训,提出一些设想和建议,希望能为今后类似工程提供一些借鉴和参考。
Retaining and protect ion of building foundation excavations have great development in recent years. This technology can be used to retain the soil, cut off the water and ensure the bottom of the pit stability in order to assume the necessary load. It also can guarantee the smooth progress of underground structural engineering. The retaining and protection structure of deep excavation pit is temporary structure during the construction. but whether its selection. calculation and construction is correct or not will affect construction security, period and the economic benefits and is one of the key techn0109ieS of the high-rise building construction.
This article firstly featured deep excavation pit support structure in detail and introduce several common types of deep excavation pit support structure so as to sum up the coiiL,,,non design methods of the current deep excavation pit. Then this article introduced the stability theory principles, methods and checking factors of a foundation pit. Three chapter also introduced the concept of the soil nailing, the application of the soil nailing wall on the analysis of the role of soil nails and the characteristics of soil nailing and on the concept and characteristics of the composite soil nails. By studying the method of calculating of the structure of soil nailing, we in-depth analysed design and construction and some of the issues.
Chapter four takes the sample of Yu Liangwan square in Suzhou industrial Park, this article is taking the references of the design and construction of the retaining wall of Jianwu square foundation, to analyze those key elements critical to the soil nailing wall through collecting and studying the supporting plans, designs and monitoring records. Fouthermore, a summary of effective methods and correction actions during deep foundation pit construction is also included in this article. Hopefully, it can be of some help as a reference for any possible similar buildings in future.
引文
[1]余志成,施文华.深基坑支护设计与施工[M].北京：中国建筑工业出版社,1997.
[2]FANG Y S, ISHIBASHI I. Static earth pressures with various wall movements [J]. Journal of Geotechnical Engineering,1986,112(3):317-333.
[3]朱彦鹏,王秀丽,于劲,等.悬臂式支护桩全过程内力及土压力的试验研究与分析[J].工程力学,1999(增刊)：535-541.
[4]王元战,王海龙,张文忠.挡土墙土压力分布[J].中国港湾建设,2000(4)：1-5.
[5]陆培毅,严驰,刘润.粘性土基于室内模型试验土压力分布形式的研究[J].建筑结构学报,2002,2002(2)：84-86.
[6]王元战,唐照评,郑斌.墙体绕墙顶转动情况下挡土墙主动土压力分布[J].应用数学和力学,2004(4)：695-700.
[7]高大钊.深基坑工程[M].北京：机械工业出版社,2002.
[8]TERZAGHI K, PECK RB. Soil mechanics in Engineering practices[C]. New York:John Wiley and Sons Inc,1967.
[9]LAMBE T W, WHITMAN R V. Soil mechanics[C]. New York:Wiley,1969.
[10]HASHASH Y M A, WHITTLE A J. Mechanisms of load transfer and arching for braced excavations in clay[J]. Journal of Geotechnical and Geoenvironmental Engineering,2002,128(3):187-197.
[11]胡敏云,夏永承.从深基坑护壁桩桩身弯矩分析桩侧土压力[J].力学与实践,2001：16-20.
[12]彭社琴,赵其华.深基坑坑壁土压力模式与支护结构安全分析[J].成都理工大学学报,2005(5)：513-517.
[13]唐业清,李启民,崔江余编著.基坑工程事故分析与处理[M].北京：中国建筑工业出版社,1999.
[14]曾宪明等.基坑与边坡事故警示录[M].北京：中国建筑工业出版社,1999.
[15]余志成,施文华.深基坑支护设计与施工[M].中国建筑工业出版社,1997.
[16]Terzaghi K., General Wedge Theory of Earth Pressure, Transactions, ASCE, 1943,106.
[17]Peck R. B, Earth Pressure Measurements in Own Engineering, ASCE,1943, 108.
[18]中华人民共和国冶金工业部,YB9258—97,建筑基坑工程技术规范,北京：冶金工业出版社,1997.
[19]顾慰慈.挡土墙土压力计算手册[M].北京：中国建筑工业出版社,2005.
[20]Fang Y. S., Ishibashi, I. Static earth pressure with various wall movements [J]. Journal of Geotechnical Engineering, ASCE,1986,112(3):317-333.
[21]王秀丽,朱彦鹏,方有珍.大直径柔性管的有限元分析与研究[J].甘肃工业大学学报,1999,15(1)：84-88.
[22]王元战,王海龙.挡土墙土压力分布[J].中国港湾建设.2000(4)：1-5.
[23]陆培毅,严驰.粘性土基于室内模型试验土压力分布形式的研究[J].建筑结构学报.2002,23(2)：83-86.
[24]王元战,唐照评,郑斌.墙体绕墙顶转动情况下挡土墙主动土压力分布[J].应用数学和力学.2004,25(007)：695-700.
[25]王步云,高顺峰.土钉技术在边坡稳定中的应用[J].煤矿设计.1990(10)：35-40.
[26]秦四清,贾金,马永祺,等.深基坑工程优化设计[M].地震出版社,1998.
[27]谢康和,周健.岩土工程有限元分析理论与应用[M].科学出版社,2002.
[28]杨光华.深基坑支护结构的实用计算方法及其应用[J].岩土力学.2004,25(12)：1885-1896.
[29]姜清华,颜克诚,蔡枫.浅谈基坑降水发展及优化设计[J].中国水运.2006,4：12-13.
[30]滕凯.关于地下水位动态预测模型的进一步研究[J].中国农村水利水电.2004(4)：27-29.
[31]虎维岳.地下水疏干井群优化设计的遗传算法[J].煤田地质与勘探.1999,27(1)：36-38.
[32]李佑彬.高压旋喷止水帷幕在深基坑支护工程中的应用[J].科技资讯.2008(029)：55-56.
[33]严稳平,刘笔艳,陈豹.高压旋喷联合高压分段注浆工艺在复杂地层止水帷幕中的应用[J].工程建设与设计.2008(7)：56-58.
[34]刘雄军,王育琼.高压旋喷止水帷幕在某工程中的应用分析[J].四川建材.2009,35(3)：214-215.
[35]刘彦忠.复合土钉墙技术在杂填土层基坑支护中的应用[J].岩土力学.2002,23(4)：520-523.
[36]刘建航,侯学渊.基坑工程手册[Z].北京：中国建筑工业出版社,1997.
[37]黄强.建筑基坑支护技术规程应用手册[M].北京：中国建筑工业出版社,1999.
[38]曾宪明,黄久松,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,2000.
[39]袁培中.土层锚杆与管井降水技术在基坑工程中的应用[J].山西建筑.2005,31(11)：79-81.
[2]FANG Y S, ISHIBASHI I. Static earth pressures with various wall movements [J]. Journal of Geotechnical Engineering,1986,112(3):317-333.
[3]朱彦鹏,王秀丽,于劲,等.悬臂式支护桩全过程内力及土压力的试验研究与分析[J].工程力学,1999(增刊)：535-541.
[4]王元战,王海龙,张文忠.挡土墙土压力分布[J].中国港湾建设,2000(4)：1-5.
[5]陆培毅,严驰,刘润.粘性土基于室内模型试验土压力分布形式的研究[J].建筑结构学报,2002,2002(2)：84-86.
[6]王元战,唐照评,郑斌.墙体绕墙顶转动情况下挡土墙主动土压力分布[J].应用数学和力学,2004(4)：695-700.
[7]高大钊.深基坑工程[M].北京：机械工业出版社,2002.
[8]TERZAGHI K, PECK RB. Soil mechanics in Engineering practices[C]. New York:John Wiley and Sons Inc,1967.
[9]LAMBE T W, WHITMAN R V. Soil mechanics[C]. New York:Wiley,1969.
[10]HASHASH Y M A, WHITTLE A J. Mechanisms of load transfer and arching for braced excavations in clay[J]. Journal of Geotechnical and Geoenvironmental Engineering,2002,128(3):187-197.
[11]胡敏云,夏永承.从深基坑护壁桩桩身弯矩分析桩侧土压力[J].力学与实践,2001：16-20.
[12]彭社琴,赵其华.深基坑坑壁土压力模式与支护结构安全分析[J].成都理工大学学报,2005(5)：513-517.
[13]唐业清,李启民,崔江余编著.基坑工程事故分析与处理[M].北京：中国建筑工业出版社,1999.
[14]曾宪明等.基坑与边坡事故警示录[M].北京：中国建筑工业出版社,1999.
[15]余志成,施文华.深基坑支护设计与施工[M].中国建筑工业出版社,1997.
[16]Terzaghi K., General Wedge Theory of Earth Pressure, Transactions, ASCE, 1943,106.
[17]Peck R. B, Earth Pressure Measurements in Own Engineering, ASCE,1943, 108.
[18]中华人民共和国冶金工业部,YB9258—97,建筑基坑工程技术规范,北京：冶金工业出版社,1997.
[19]顾慰慈.挡土墙土压力计算手册[M].北京：中国建筑工业出版社,2005.
[20]Fang Y. S., Ishibashi, I. Static earth pressure with various wall movements [J]. Journal of Geotechnical Engineering, ASCE,1986,112(3):317-333.
[21]王秀丽,朱彦鹏,方有珍.大直径柔性管的有限元分析与研究[J].甘肃工业大学学报,1999,15(1)：84-88.
[22]王元战,王海龙.挡土墙土压力分布[J].中国港湾建设.2000(4)：1-5.
[23]陆培毅,严驰.粘性土基于室内模型试验土压力分布形式的研究[J].建筑结构学报.2002,23(2)：83-86.
[24]王元战,唐照评,郑斌.墙体绕墙顶转动情况下挡土墙主动土压力分布[J].应用数学和力学.2004,25(007)：695-700.
[25]王步云,高顺峰.土钉技术在边坡稳定中的应用[J].煤矿设计.1990(10)：35-40.
[26]秦四清,贾金,马永祺,等.深基坑工程优化设计[M].地震出版社,1998.
[27]谢康和,周健.岩土工程有限元分析理论与应用[M].科学出版社,2002.
[28]杨光华.深基坑支护结构的实用计算方法及其应用[J].岩土力学.2004,25(12)：1885-1896.
[29]姜清华,颜克诚,蔡枫.浅谈基坑降水发展及优化设计[J].中国水运.2006,4：12-13.
[30]滕凯.关于地下水位动态预测模型的进一步研究[J].中国农村水利水电.2004(4)：27-29.
[31]虎维岳.地下水疏干井群优化设计的遗传算法[J].煤田地质与勘探.1999,27(1)：36-38.
[32]李佑彬.高压旋喷止水帷幕在深基坑支护工程中的应用[J].科技资讯.2008(029)：55-56.
[33]严稳平,刘笔艳,陈豹.高压旋喷联合高压分段注浆工艺在复杂地层止水帷幕中的应用[J].工程建设与设计.2008(7)：56-58.
[34]刘雄军,王育琼.高压旋喷止水帷幕在某工程中的应用分析[J].四川建材.2009,35(3)：214-215.
[35]刘彦忠.复合土钉墙技术在杂填土层基坑支护中的应用[J].岩土力学.2002,23(4)：520-523.
[36]刘建航,侯学渊.基坑工程手册[Z].北京：中国建筑工业出版社,1997.
[37]黄强.建筑基坑支护技术规程应用手册[M].北京：中国建筑工业出版社,1999.
[38]曾宪明,黄久松,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,2000.
[39]袁培中.土层锚杆与管井降水技术在基坑工程中的应用[J].山西建筑.2005,31(11)：79-81.
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