真空预压法加固软土地基中塑料排水板间距选择的研究
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摘要
在我国沿海及各大江大河的入海三角洲冲积平原地区广泛分布着海相沉积、湖相沉积和河相沉积的软弱粘土层,这种土具有含水量高、渗透性差、压缩性大和强度低等特点。近年来,随着经济社会的发展,工程建设用地日益紧张,越来越多的建筑物将建造在这种软土地基上,促进了软基处理理论研究和工程实践的发展,其中真空排水预压法是比较成熟的软土地基处理方法,取得了良好的经济效益和社会效益。位于天津滨海新区的天津港陆域系吹填而成,是典型的软土地基,给港口各种建筑物的设计、施工都带来了不利的影响。国家已经明确把天津滨海新区开发开放纳入总体发展战略布局,天津港是滨海新区的重要组成部分,滨海新区的开发开放为天津港创造了难得的历史机遇。如何优化现有软土地基处理加固方法,为港口建设缩短工期、节约成本成为值得关注的重要研究课题。
本文在总结回顾真空预压技术的发展历史和研究现状基础上,结合天津临港产业区经三路(一期)地基处理工程开展真空预压不同间距排水板对工期与造价影响方面的研究工作,为今后软土地基加固方案的优化设计和施工提供指导性建议。主要内容如下:
(1)简要叙述天津滨海地区地质条件及适用的地基处理方法,回顾了真空预压法在大面积深厚软土地基中的发展历史及研究现状。
(2)介绍了真空预压施工的基本工艺与基本原理。
(3)应用具体工程实例,其中包括工程概况,施工流程与监测与结果分析。
(4)介绍了地基沉降计算的基本方法,通过计算得出不同间距排水板对工期造价的影响的关系曲线。为今后为今后软土地基加固方案的优化设计和施工提供指导性建议。
In China's coastal rivers and the delta of alluvial plains into the sea widely distributed in marine sediments, lake sediments and river sediments of soft clay layer, the soil has a high water content, poor permeability, compressibility and low strength of large and . In recent years, with the economic and social development, engineering, construction land increasingly tense, more and more buildings will be built on this soft ground, soft ground for the theoretical research and engineering development of the practice, which pre-vacuum drainage pressure method is a relatively mature soft approach, and achieved good economic and social benefits. Located in the Tianjin Binhai New Area of Tianjin Port Land Reclamation Department made, is typical of the soft ground, to port a variety of building design and construction have had a negative impact. State has made it clear to the development and opening of Tianjin Binhai New Area into the overall development strategy, Tianjin Binhai New Area is an important part of the development and opening of Binhai New Area of Tianjin Port to create a rare historical opportunity. How to optimize existing reinforced soft soil treatment method for the port construction to shorten the duration and cost savings as an important research topic of concern.
In this paper, A review of vacuum preloading technology development and research the history of the status quo, based on the combination of Tianjin Harbor Industrial Zone by the three-way (a) to carry out ground treatment works vacuum preloading different drain spacing effects on the duration and cost of research , soft foundation for the future design and construction of the optimization program to provide guidance recommendations. Following major elements:
(1) a brief description of Tianjin Binhai geological foundation conditions and applicable approach to review the vacuum preloading method in a large area of deep and soft in the history of the status quo.
(2) describes the basic construction of the vacuum preloading process and basic principles.
(3) application examples of specific projects, including project profiles, and monitoring the construction process and results analysis.
(4) describes the basic method of calculation of foundation settlement, obtained by calculating the distance between the different cost of the drainage board for the duration impact of the curve. Soft foundation for the future program for the future optimization of the design and construction recommendations to provide guidance.
本文在总结回顾真空预压技术的发展历史和研究现状基础上,结合天津临港产业区经三路(一期)地基处理工程开展真空预压不同间距排水板对工期与造价影响方面的研究工作,为今后软土地基加固方案的优化设计和施工提供指导性建议。主要内容如下:
(1)简要叙述天津滨海地区地质条件及适用的地基处理方法,回顾了真空预压法在大面积深厚软土地基中的发展历史及研究现状。
(2)介绍了真空预压施工的基本工艺与基本原理。
(3)应用具体工程实例,其中包括工程概况,施工流程与监测与结果分析。
(4)介绍了地基沉降计算的基本方法,通过计算得出不同间距排水板对工期造价的影响的关系曲线。为今后为今后软土地基加固方案的优化设计和施工提供指导性建议。
In China's coastal rivers and the delta of alluvial plains into the sea widely distributed in marine sediments, lake sediments and river sediments of soft clay layer, the soil has a high water content, poor permeability, compressibility and low strength of large and . In recent years, with the economic and social development, engineering, construction land increasingly tense, more and more buildings will be built on this soft ground, soft ground for the theoretical research and engineering development of the practice, which pre-vacuum drainage pressure method is a relatively mature soft approach, and achieved good economic and social benefits. Located in the Tianjin Binhai New Area of Tianjin Port Land Reclamation Department made, is typical of the soft ground, to port a variety of building design and construction have had a negative impact. State has made it clear to the development and opening of Tianjin Binhai New Area into the overall development strategy, Tianjin Binhai New Area is an important part of the development and opening of Binhai New Area of Tianjin Port to create a rare historical opportunity. How to optimize existing reinforced soft soil treatment method for the port construction to shorten the duration and cost savings as an important research topic of concern.
In this paper, A review of vacuum preloading technology development and research the history of the status quo, based on the combination of Tianjin Harbor Industrial Zone by the three-way (a) to carry out ground treatment works vacuum preloading different drain spacing effects on the duration and cost of research , soft foundation for the future design and construction of the optimization program to provide guidance recommendations. Following major elements:
(1) a brief description of Tianjin Binhai geological foundation conditions and applicable approach to review the vacuum preloading method in a large area of deep and soft in the history of the status quo.
(2) describes the basic construction of the vacuum preloading process and basic principles.
(3) application examples of specific projects, including project profiles, and monitoring the construction process and results analysis.
(4) describes the basic method of calculation of foundation settlement, obtained by calculating the distance between the different cost of the drainage board for the duration impact of the curve. Soft foundation for the future program for the future optimization of the design and construction recommendations to provide guidance.
引文
[1]郝占刚,真空预压法在天津港软基加固中的应用研究,硕士学位论文,天津大学,2009.7
[2]白冰,肖宏彬.,软土工程若干理论与应用,北京:中国水利水电出版社,2002
[3]叶柏荣,综述真空预压法在我国的发展,地基处理,2000.11(3):49~57
[4]陈少青,真空预压处理软土地基中竖向排水体长度选择的研究,硕士学位论文,天津大学,2010.7
[5]龚晓南,岑仰润,李昌宁,真空排水预压加固软土地基的研究现状及展望,第七届全国地基处理学术讨论会论文集,兰州,2002:3~7
[6]李格平,真空联合堆载加固软粘土地基的有限元分析,硕士学位论文,天津大学,2001
[7]程金遥,真空预压法在软土地基浅层加固中的应用研究,硕士学位论文,天津大学,2009
[8]任文芳,塑料排水板间距对真空预压加固时间的影响,中国港湾建设,2005,136(3):31
[9]孙立强,超软吹填土地基真空预压理论及模型试验的研究,博士学位论文,天津大学,2010.3
[10]黄景林,真空联合堆载预压法加固机理和特性及堆载过程中稳定的研究,学位论文,北京交通大学,2008
[11]娄炎,真空排水预压法加固软土技术,北京:人民交通出版社,2002
[12]陈环.真空预压法机理研究十年,港口工程,1991,(04)
[13]李选民,软土路基排水固结研究与有限元分析,学位论文,中南大学,2006
[14]杨进良,土力学(第4版),北京:中国水利水电出版社,2009
[15]江新冬,真空联合堆载预压设计与现场监测,学位论文,浙江大学,2008
[16]沈珠江,陆瞬英,软土地基真空排水预压的固结变形分析,岩土工程学报,1986,8(3):8~16
[17]高长胜,汪肇京,魏汝龙,朱群峰,固结排水中排水带通水量的影响及选择,岩土力学,2004,25(3):473-476
[18]赵维炳,唐彤芝,高长胜等,控制工后沉降处理深厚软土地基,北京:人民交通出版社,2006
[19]中华人民共和国交通运输部,JTS 206-1-2009,北京:中华人民共和国行业标准人民交通出版社,2009
[20]宋培鸽,真空预压法在温州软土地基加固中的应用及环境效应研究,学位论文,浙江工业大学,2010
[21]朱福明,天津港真空预压加固排水板间距对工期和造价的影响,江西水利科技,2009,35(2):116~118
[22]张永波,贾宁,李荣华.塑料板排水法处理软土地基中排水板布置方案的优化设计[J].工程勘察,2004,6.
[23] Halton G.R., Loughney R.W., Winte E.R. Vacuum Stabilization of Subsoil beneath Runway Extension at Philadelphia International Airport, Proc.of IV ICSMFE, 1965: 61~65.
[24] Masse F., Spaulding C.A., Pr.Ihm Chol Wong, Vacuum consolidation: a review of 12 years of successful development, Prepared for Distribution to Attendees at Geo-Odyssey-ASCE/Virginia Tech—Blacksburg, VA USA, 2001(6): 9-13.
[25] Mikasa M,. Soil Improvement by Dewatering Osaka South Proc. Geotechnical Aspects of Coastal Reclamation Projects in Japan, 19-81.
[2]白冰,肖宏彬.,软土工程若干理论与应用,北京:中国水利水电出版社,2002
[3]叶柏荣,综述真空预压法在我国的发展,地基处理,2000.11(3):49~57
[4]陈少青,真空预压处理软土地基中竖向排水体长度选择的研究,硕士学位论文,天津大学,2010.7
[5]龚晓南,岑仰润,李昌宁,真空排水预压加固软土地基的研究现状及展望,第七届全国地基处理学术讨论会论文集,兰州,2002:3~7
[6]李格平,真空联合堆载加固软粘土地基的有限元分析,硕士学位论文,天津大学,2001
[7]程金遥,真空预压法在软土地基浅层加固中的应用研究,硕士学位论文,天津大学,2009
[8]任文芳,塑料排水板间距对真空预压加固时间的影响,中国港湾建设,2005,136(3):31
[9]孙立强,超软吹填土地基真空预压理论及模型试验的研究,博士学位论文,天津大学,2010.3
[10]黄景林,真空联合堆载预压法加固机理和特性及堆载过程中稳定的研究,学位论文,北京交通大学,2008
[11]娄炎,真空排水预压法加固软土技术,北京:人民交通出版社,2002
[12]陈环.真空预压法机理研究十年,港口工程,1991,(04)
[13]李选民,软土路基排水固结研究与有限元分析,学位论文,中南大学,2006
[14]杨进良,土力学(第4版),北京:中国水利水电出版社,2009
[15]江新冬,真空联合堆载预压设计与现场监测,学位论文,浙江大学,2008
[16]沈珠江,陆瞬英,软土地基真空排水预压的固结变形分析,岩土工程学报,1986,8(3):8~16
[17]高长胜,汪肇京,魏汝龙,朱群峰,固结排水中排水带通水量的影响及选择,岩土力学,2004,25(3):473-476
[18]赵维炳,唐彤芝,高长胜等,控制工后沉降处理深厚软土地基,北京:人民交通出版社,2006
[19]中华人民共和国交通运输部,JTS 206-1-2009,北京:中华人民共和国行业标准人民交通出版社,2009
[20]宋培鸽,真空预压法在温州软土地基加固中的应用及环境效应研究,学位论文,浙江工业大学,2010
[21]朱福明,天津港真空预压加固排水板间距对工期和造价的影响,江西水利科技,2009,35(2):116~118
[22]张永波,贾宁,李荣华.塑料板排水法处理软土地基中排水板布置方案的优化设计[J].工程勘察,2004,6.
[23] Halton G.R., Loughney R.W., Winte E.R. Vacuum Stabilization of Subsoil beneath Runway Extension at Philadelphia International Airport, Proc.of IV ICSMFE, 1965: 61~65.
[24] Masse F., Spaulding C.A., Pr.Ihm Chol Wong, Vacuum consolidation: a review of 12 years of successful development, Prepared for Distribution to Attendees at Geo-Odyssey-ASCE/Virginia Tech—Blacksburg, VA USA, 2001(6): 9-13.
[25] Mikasa M,. Soil Improvement by Dewatering Osaka South Proc. Geotechnical Aspects of Coastal Reclamation Projects in Japan, 19-81.