| 布尔沙模型在中山桥顶升监控中的应用 |
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| 引用本文： | 李建章,李培天,杨学超.布尔沙模型在中山桥顶升监控中的应用[J].测绘科学,2013,38(2):132-134. |
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| 作者姓名： | 李建章 李培天 杨学超 |
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| 作者单位： | 兰州交通大学土木工程学院,兰州,730070 |
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| 摘 要： | 在桥梁顶升作业监控中,通常只对监测点顶升前后的坐标值进行比较,由于没有考虑梁体的整体性,且观测误差和坐标变化量混杂其中,因此难以准确判断桥梁的位置及姿态的变化情况。在中山桥的顶升作业监控中,笔者基于布尔沙模型对监测点坐标及高程进行统一平差处理,获取桥梁在顶升前后位置、姿态等参数变化量的最优估值,从而为桥梁的安全施工提供了科学的依据。
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| 关 键 词： | 布尔沙模型 顶升 监控 |
Application of BURSA model in monitoring control of bridge jack-up |
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| LI Jian-zhang,LI Pai-tian,YANGXue-chao.Application of BURSA model in monitoring control of bridge jack-up[J].Science of Surveying and Mapping,2013,38(2):132-134. |
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| Authors: | LI Jian-zhang LI Pai-tian YANGXue-chao |
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| Institution: | (School of Civil Engineering of Lanzhou Jiao tong University,Lanzhou 730070,China) |
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| Abstract: | In monitoring control of the bridge jacking up,usually only the monitoring point coordinate values before and after lifting are compared each other,so it is difficult to accurately determine the changes of bridge location and attitude because of no considering the integrity of the bridge,and mixing the mess of observation error and coordinates change.In Zhongshan bridge jacking up monitoring,the authors finished the unified adjustment processing of the coordinates and elevation of monitoring points based on Bursa model,and got the position,attitude and other parameters of the optimal valuation of variation in before and after jacking-up,which could provide a scientific basis to bridge safety construction. |
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| Keywords: | BURSA model bridge jack-up monitoring control |
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