城市高架桥梁GPS控制网的建立实践与分析
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摘要
鉴于城市高架桥梁GPS控制网的线型特点和要求,结合某城市区域高架桥梁GPS控制网建立的实例,探讨GPS技术在城区高架桥梁控制网建立过程中的一些问题,诸如等级确定、网型结构、强度增加、重点观测等。通过该网的建立,获得了某城市高架桥梁规划设计、建设、监测等的平、高基准。该网针对某一25km长的大型高架桥梁工程所建,分段施工,验收各分段桥面对接的平、高方向最大误差分别为±1.1cm和±1.8cm,远小于工程对接限差±5cm,证明本文的所述方法和做法具有重要的实用价值和示范作用。
For the characteristics and requirements of GPS control network of City viaduct,combined the instance of the establishment of a City viaduct GPS control network,some problems in the establishment of GPS control network of City viaduct are discussed,such as the level determination,the structure of the grid,strength increase,focus observations and so on.Through the establishment of the control network,the horizontal and vertical datum of the city viaduct in design,construction and monitor are gotten.This network was designed for a 25 km-long-viaduct.The acceptance check of subparagraphs deck docking,the horizontal and vertical maximum error was± 1.1 cm and 1.8 cm respectively far less than the tolerance error ± 5 cm of perforation project.The instance proved the methods and practices discussed in this paper have important practical value and exemplary role.
For the characteristics and requirements of GPS control network of City viaduct,combined the instance of the establishment of a City viaduct GPS control network,some problems in the establishment of GPS control network of City viaduct are discussed,such as the level determination,the structure of the grid,strength increase,focus observations and so on.Through the establishment of the control network,the horizontal and vertical datum of the city viaduct in design,construction and monitor are gotten.This network was designed for a 25 km-long-viaduct.The acceptance check of subparagraphs deck docking,the horizontal and vertical maximum error was± 1.1 cm and 1.8 cm respectively far less than the tolerance error ± 5 cm of perforation project.The instance proved the methods and practices discussed in this paper have important practical value and exemplary role.
引文
[1]李征航,黄劲松.GPS测量与数据处理[M].2版,武汉:武汉大学出版社,2010.
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[6]伍学祥.实时GPS测量在公路放样中的应用研究[J].测绘通报,1999(12):35-37.
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[8]朱文耀,王小亚,程宗颐,等.利用GPS技术监测中国大陆地壳运动的初步结果[J].中国科学,D辑,2000,30(4):394-400.
[9]独知行,刘智敏.GPS测量实施与数据处理[M].北京:测绘出版社,2010.
[10]黄丁发,熊永良,周乐韬,等.GPS卫星导航定位技术与方法[M].北京:科学出版社,2009.
[11]吴栋材,王新洲,何良洪,等.荆州长江公路大桥GPS施工控制网的设计与实践[J].测绘通报,2000(10):31-35.
[12]ASHKENAZI V,BINGLEY R M,BOOTH S J,etal.Monitoring tide gauge heights in the UK withGPS[C]//In Proceedings of the 21st InternationalFIG Congress,Commission 5,1998:291-303.
[13]HUANG S X,LIU X L.Data analysis of GPS dy-namic monitoring for tall structure.[C]//In Pro-ceedings of IAG Workshop on Monitoring of Con-structions and Local Geodynamic Process,Wuhan,China,2001:243-249.
[14]独知行,靳奉祥,冯尊德.高层建筑物整体变形监测及分析方案[J].工程勘察,2000(2):55-58.
[2]周忠谟,易杰军,周琪.GPS卫星测量原理与应用[M].北京:测绘出版社,2002.
[3]徐绍铨,张华海,杨志强,等.GPS测量原理与应用[M].武汉:武汉大学出版社,2003.
[4]中华人民共和国国家质量监督检验检疫局,中国国家标准化管理委员会.全球定位系统(GPS)测量规范.中华人民共和国国家标准,GB/T18314-2009[S].北京:中国标准出版社,2009.
[5]王玉成,周水渠.GPS在抽水蓄能电站建设中的应用[J].测绘通报,1999(3):18-19.
[6]伍学祥.实时GPS测量在公路放样中的应用研究[J].测绘通报,1999(12):35-37.
[7]顾国华.大地形变测量中的应变计算[J].地壳形变与地震,1989,9(1):38-45.
[8]朱文耀,王小亚,程宗颐,等.利用GPS技术监测中国大陆地壳运动的初步结果[J].中国科学,D辑,2000,30(4):394-400.
[9]独知行,刘智敏.GPS测量实施与数据处理[M].北京:测绘出版社,2010.
[10]黄丁发,熊永良,周乐韬,等.GPS卫星导航定位技术与方法[M].北京:科学出版社,2009.
[11]吴栋材,王新洲,何良洪,等.荆州长江公路大桥GPS施工控制网的设计与实践[J].测绘通报,2000(10):31-35.
[12]ASHKENAZI V,BINGLEY R M,BOOTH S J,etal.Monitoring tide gauge heights in the UK withGPS[C]//In Proceedings of the 21st InternationalFIG Congress,Commission 5,1998:291-303.
[13]HUANG S X,LIU X L.Data analysis of GPS dy-namic monitoring for tall structure.[C]//In Pro-ceedings of IAG Workshop on Monitoring of Con-structions and Local Geodynamic Process,Wuhan,China,2001:243-249.
[14]独知行,靳奉祥,冯尊德.高层建筑物整体变形监测及分析方案[J].工程勘察,2000(2):55-58.
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