土工合成材料加筋土柔性桥台复合结构及应用
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摘要
土工合成材料加筋土柔性桥台复合结构是美国"未来桥梁计划"中针对50多万座面临"更换问题"的中小型单跨桥梁而提出的一种新型技术,是土工合成材料加筋土柔性桥台技术的优化与提升。这种新型技术整体性好,可彻底避免传统桩承桥台与引道路基之间的差异沉降,近10年来已逐步在美国各州推广应用。在我国,尽管加筋土理论和技术应用取得了很大发展,但尚无真正的加筋土柔性桥台复合结构的工程实践方面的报道。文章收集了已有的加筋土柔性桥台复合结构工程案例和现场监测成果,整理归纳其结构特点和工作特性,结果表明:该结构通常具有统一的结构形式和技术特点,如加筋间距一般为0.2m、面层型式一般为模块式等;该结构具有施工简便快速、造价节省等优点,并表现出工后沉降小等良好的服役性能。
The geosynthetic reinforced soil-integrated bridge system(GRS-IBS) is a refined development of geosynthetic reinforced soil(GRS) abutment, for "Bridge of the Future Program", to meet demands for the next generation of more than 500,000 small to medium single-span bridges in America. The advantages of this new technology include reduced construction time and cost, generally fewer construction difficulties, and easier maintenance over the lifecycle of the structure. These advantages have led to a significant increase of construction of GRS-IBS structures in almost every state of America in recent years. However, no engineering practice of GRS-IBS appears in China up to now. Authors of this article collect the case studies to analysis and summarizes the structural characteristics and work performance of GRS-IBS. The results show that the structure usually has a unified structural form and technical characteristics, such as the reinforcement spacing is generally0.2 m, the surface layer type is generally modular, etc.; the structure has the advantages of simple and rapid construction, cost saving, etc.; and good service performance such as small settlement is also worth to mention.
The geosynthetic reinforced soil-integrated bridge system(GRS-IBS) is a refined development of geosynthetic reinforced soil(GRS) abutment, for "Bridge of the Future Program", to meet demands for the next generation of more than 500,000 small to medium single-span bridges in America. The advantages of this new technology include reduced construction time and cost, generally fewer construction difficulties, and easier maintenance over the lifecycle of the structure. These advantages have led to a significant increase of construction of GRS-IBS structures in almost every state of America in recent years. However, no engineering practice of GRS-IBS appears in China up to now. Authors of this article collect the case studies to analysis and summarizes the structural characteristics and work performance of GRS-IBS. The results show that the structure usually has a unified structural form and technical characteristics, such as the reinforcement spacing is generally0.2 m, the surface layer type is generally modular, etc.; the structure has the advantages of simple and rapid construction, cost saving, etc.; and good service performance such as small settlement is also worth to mention.
引文
[1]Han J,Jiang Y,Xu C.Recent advances in geosyntheticreinforced retaining walls for highway applications[J].Frontiers of Structural and Civil Engineering,2017,(5):1-9
[2]Adams M,Ketchart K,Ruckman A,et al.Reinforced soil for bridge support applications on low-volume roads[J].Transportation Research Record:Journal of the Transportation Research Board,1999,1652(1):150-160
[3]Adams M T,Nicks J,Stabile T,et al.Geosynthetic reinforced soil integrated bridge system interim implementation guide[R].McLean,VA:The US Federal Highway Administration,2012
[4]Ngo T.Feasibility study of geosynthetic reinforced soil integrated bridge systerms(GRS-IBS)in Oklahoma[D].Oklahoma:University of Oklahoma Graduate College,2016
[5]Adams M T,Schlatter W,Stabile T.Geosynthetic reinforced soil integrated abutments at the bowman road bridge in defiance county,Ohio[C]//Geo-Denver.Reston,VA:American Society of Civil Engineers,2007:16-26
[6]Zheng Y,Fox P J.Numerical investigation of the geosynthetic reinforced soil-integrated bridge system under static loading[J].Journal of Geotechnical and Geoenvironmental Engineering,2017,143(6):1-14
[7]Adams M,Nicks J,Stabile T,et al.Geosynthetic reinforced soil integrated bridge system synthesis report[R].McLean,VA:The US Federal Highway Administration,2011
[8]Saghebfar M,Abu Farsakh M,Ardah A,et al.Performance monitoring of geosynthetic reinforced soil integrated bridge system in Louisiana[J].Geotextiles and Geomembranes,2017,45(2):34-47
[9]Saghebfar M,Abu Farsakh M Y,Ardah A,et al.Full-scale testing of geosynthetic-reinforced,soil-integrated bridge system[J].Transportation Research Record:Journal of the Transportation Research Board,2017,2656:40-52
[10]Lawrence J B.Structural health monitoring of the first geosynthetic reinforced soil-integrated bridge system in Hawaii[D].Hawaii:University of Hawaii,2014
[11]Raghunathan D.Louisiana demonstration project:maree michel&creek bridges GRS-IBS project[R].U.S.:Federal Highway Administration,2015
[12]Nicks J E,Adams M T,Stabile T,et al.Thermal interaction of a geosynthetic reinforced soil integrated bridge system in St.Lawrence County,NY[C]//Geotechnical Frontiers.Reston,VA:American Society of Civil Engineers,2017
[13]Alhasan A,Mcguire M P,Vennapusa P K R,et al.Application of terrestrial laser scanning for the displacement monitoring of GRS-IBS abutments[C]//Geo-Chicago.Reston,VA:American Society of Civil Engineers,2016:453-461
[14]Budge A S,Dasenbrock D D,Mattison D J,et al.Instrumentation and early performance of a large-grade GRS-IBS wall[C]//Geo-Congress.Reston,VA:American Society of Civil Engineers,2014:4213-4227
[15]Raghunathan D,Sadasivam S,Mallela J.Utah demonstration project:geosynthetic reinforced soil integrated bridge system on I-84 near Salt Lake City[R].U.S.:Federal Highway Administration,2014
[16]Talebi M,Meehan C L,Cacciola D V,et al.Design and construction of a geosynthetic reinforced soil integrated bridge system[C]//Geo-Congress.Reston,VA:American Society of Civil Engineers,2014:4176-4190
[17]Suits L D.A case study:geosynthetic reinforced soil-integrated bridge structure[J].Geosynthetics,2015:236-243
[18]Boeckmann A,Lindsey E,Runge S,et al.Instrumentation and monitoring of rustic road geosynthetic reinforced soil integrated bridge system[R].Missouri:Department of Transportation,2016
[19]Keller G,Devin S.Geosynthetic-reinforced soil bridge abutments[J].Transportation Research Record:Journal of the Transportation Research Board,2003,1819(1):362-368
[2]Adams M,Ketchart K,Ruckman A,et al.Reinforced soil for bridge support applications on low-volume roads[J].Transportation Research Record:Journal of the Transportation Research Board,1999,1652(1):150-160
[3]Adams M T,Nicks J,Stabile T,et al.Geosynthetic reinforced soil integrated bridge system interim implementation guide[R].McLean,VA:The US Federal Highway Administration,2012
[4]Ngo T.Feasibility study of geosynthetic reinforced soil integrated bridge systerms(GRS-IBS)in Oklahoma[D].Oklahoma:University of Oklahoma Graduate College,2016
[5]Adams M T,Schlatter W,Stabile T.Geosynthetic reinforced soil integrated abutments at the bowman road bridge in defiance county,Ohio[C]//Geo-Denver.Reston,VA:American Society of Civil Engineers,2007:16-26
[6]Zheng Y,Fox P J.Numerical investigation of the geosynthetic reinforced soil-integrated bridge system under static loading[J].Journal of Geotechnical and Geoenvironmental Engineering,2017,143(6):1-14
[7]Adams M,Nicks J,Stabile T,et al.Geosynthetic reinforced soil integrated bridge system synthesis report[R].McLean,VA:The US Federal Highway Administration,2011
[8]Saghebfar M,Abu Farsakh M,Ardah A,et al.Performance monitoring of geosynthetic reinforced soil integrated bridge system in Louisiana[J].Geotextiles and Geomembranes,2017,45(2):34-47
[9]Saghebfar M,Abu Farsakh M Y,Ardah A,et al.Full-scale testing of geosynthetic-reinforced,soil-integrated bridge system[J].Transportation Research Record:Journal of the Transportation Research Board,2017,2656:40-52
[10]Lawrence J B.Structural health monitoring of the first geosynthetic reinforced soil-integrated bridge system in Hawaii[D].Hawaii:University of Hawaii,2014
[11]Raghunathan D.Louisiana demonstration project:maree michel&creek bridges GRS-IBS project[R].U.S.:Federal Highway Administration,2015
[12]Nicks J E,Adams M T,Stabile T,et al.Thermal interaction of a geosynthetic reinforced soil integrated bridge system in St.Lawrence County,NY[C]//Geotechnical Frontiers.Reston,VA:American Society of Civil Engineers,2017
[13]Alhasan A,Mcguire M P,Vennapusa P K R,et al.Application of terrestrial laser scanning for the displacement monitoring of GRS-IBS abutments[C]//Geo-Chicago.Reston,VA:American Society of Civil Engineers,2016:453-461
[14]Budge A S,Dasenbrock D D,Mattison D J,et al.Instrumentation and early performance of a large-grade GRS-IBS wall[C]//Geo-Congress.Reston,VA:American Society of Civil Engineers,2014:4213-4227
[15]Raghunathan D,Sadasivam S,Mallela J.Utah demonstration project:geosynthetic reinforced soil integrated bridge system on I-84 near Salt Lake City[R].U.S.:Federal Highway Administration,2014
[16]Talebi M,Meehan C L,Cacciola D V,et al.Design and construction of a geosynthetic reinforced soil integrated bridge system[C]//Geo-Congress.Reston,VA:American Society of Civil Engineers,2014:4176-4190
[17]Suits L D.A case study:geosynthetic reinforced soil-integrated bridge structure[J].Geosynthetics,2015:236-243
[18]Boeckmann A,Lindsey E,Runge S,et al.Instrumentation and monitoring of rustic road geosynthetic reinforced soil integrated bridge system[R].Missouri:Department of Transportation,2016
[19]Keller G,Devin S.Geosynthetic-reinforced soil bridge abutments[J].Transportation Research Record:Journal of the Transportation Research Board,2003,1819(1):362-368