【作者】 李雪刚；

【导师】 赵建三； 唐平英；

【作者基本信息】 长沙理工大学 ， 道路与铁道工程， 2007， 硕士

【摘要】 公路大型构筑物变形监测是保证工程质量和安全的重要手段,并已成为工程建设和管理工作中极其重要的组成部分。不断出现的新结构、新技术、新工艺的公路大型构筑物对变形监测的精度、数据采集的时间间隔等都提出了更高的要求,不仅需要监测其外部变形还要监测其内部变形和受力状况。在国内已有运用GPS技术、全站仪、水准仪等仪器设备进行公路大型构筑物变形监测的案例,与国外比较而言,监测手段相对落后,实时、自动化采集监测信息尚未普及。研究运用先进仪器设备进行公路大型构筑物变形监测数据采集的自动化、高精度和智能化,解决实践中出现的一些新的技术问题,具有重要的现实意义。本文结合雅瑶立交主桥施工监测和控制实践,对数字水准仪、Leica TCA2003高精度智能型全站仪、振弦式应变计运用于公路大型构筑物变形监测中的一些关键技术进行了研究。首先,研究了Leica TCA2003全站仪、数字水准仪等先进测量仪器在公路大型构筑物变形监测中的应用情况,针对一些具体技术问题,设计了专项试验,得出一些有益结论,为使用高精度、智能化的先进仪器设备进行公路大型构筑物变形监测积累了一定经验。其次,总结了在本桥施工监测中振弦式应变计安装、测试的实践经验,探讨测试数据的处理方法并进行了实证,从全程测试的数据分析结果看,这种数据处理方法比较合理,符合现场实际情况。最后,通过雅瑶立交主桥施工监测实践,解决了变形监测中一些技术问题,同时也说明了高精度、智能型仪器设备应用于公路大型构筑物变形监测的前景广阔,应用价值高。本文的研究工作,为深入开展公路大型构筑物变形监测技术研究提供参考。更多还原

【Abstract】 Deformation monitoring is an important measure for huge highway building to ensure their quality and security, and as an important part in the construction and management system.The new structure, new technique, new material appeared continuously, it puts forward the higher request towards deformation monitoring & control of huge highway building, not only need to monitor its outer deformation but also need to monitor its inside deformation and stress state. In domestic, there are cases that apply GPS, total station and leveler on the deformation monitoring of huge highway building. Compare with abroad, the means of the deformation monitoring is backward, the level of automation is low. Therefore, study deeply to apply high accuracy and intelligent advance instruments to collect data, solve new technique problem in practice, and set up consummate deformation monitoring system is very important.This paper associates the practice of construction monitoring & control of the main section of the Yayao overpass, carrying on a research to the key technology problem of deformation monitoring of huge highway building by applying Leica TCA2003 total station, digital leveler; vibrating wire sensor. In the first, it takes research on digital leveler and Leica TCA2003 total station in deformation monitoring, several experiment items for some concrete technique problems are designed, and some useful conclusions are obtained. It accumulates experience for deformation monitoring of huge building by applying high accuracy and intelligent advance instruments. Secondly, practical experience in install and test vibrating wire sensors is summed up. The method of data process is explored and putted into practice. It provides reference to the further analogous work. In the end, through practice of construction monitoring & control of the main section of the Yayao overpass, some technique problems in deformation monitoring is resolved, also explained that the high accuracy and intelligent instruments apply in deformation monitoring is broad prospects.We hope this paper will become the bases of the further research in the field.更多还原