用GPS高程替代精密水准进行库盘垂直位移观测方法的研究
发布时间：2018-09-03 14:01
【摘要】：为监测黄河龙羊峡水电站坝体与坝址区垂直位移，库区以及坝址下游区的库盘垂直形变，按设计要求分别布置了长度约15km、9km、25km一等精密水准路线，构成垂直位移监测系统。 从观测设计角度评价，该网存在以下需解决的问题：野外观测工作量大；技术要求高；端点处精度差；观测频率低。与精密水准相比，应用GPS技术进行库盘垂直形变监测，精度完全能达到精密水准要求且能满足国标相关规范要求，同时具备省时、省力、省钱等优点。 为此，在2007年龙羊峡水电站大坝安全定检专家会议报告中要求：研究使用GPS高程替代精密水准进行库盘垂直位移观测的可行性及针对龙羊峡库区的网形设计。以克服目前使用的精密水准观测系统缺陷，为大坝安全分析提供可靠的数据。 本文采用理论与实践相结合的研究方法。通过现场调查、优化设计、观测验证最终对龙羊峡水电站坝址区垂直位移及坝址下游区的库盘垂直形变实施GPS监测形成统一的设计方案，完成龙羊峡水电站精密水准观测优化设计和实测验证。
[Abstract]:In order to monitor the vertical displacement between the dam body and the dam site of Longyangxia Hydropower Station on the Yellow River, the vertical deformation of the reservoir plate in the reservoir area and the downstream area of the dam site has been monitored. According to the design requirements, the first precision leveling route of about 15km ~ 9km2 ~ 25km has been arranged, which constitutes a vertical displacement monitoring system. From the point of view of observation design, the network has the following problems to be solved: the workload of field observation is large, the technical requirement is high, the precision at the end point is poor, and the observation frequency is low. Compared with precision leveling, using GPS technology to monitor vertical deformation of storehouse disk can completely meet precision leveling requirements and meet the requirements of relevant national standards, and it also has the advantages of saving time, labor, saving money, and so on. Therefore, in the report of the expert meeting on dam safety determination and inspection of Longyangxia Hydropower Station in 2007, it is required to study the feasibility of using GPS elevation instead of precision leveling to observe vertical displacement of reservoir plate and to design the grid for Longyangxia reservoir area. In order to overcome the defects of precision leveling observation system used at present, reliable data are provided for dam safety analysis. This paper adopts the research method of combining theory with practice. Through field investigation, optimization design, observation and verification, a unified design scheme was formed by GPS monitoring of vertical displacement in dam site and vertical deformation of reservoir plate in downstream area of Longyangxia Hydropower Station. The optimization design of precision leveling observation and the verification of actual measurement for Longyangxia Hydropower Station are completed.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TV698.1;P228.4
本文编号：2220179
[Abstract]:In order to monitor the vertical displacement between the dam body and the dam site of Longyangxia Hydropower Station on the Yellow River, the vertical deformation of the reservoir plate in the reservoir area and the downstream area of the dam site has been monitored. According to the design requirements, the first precision leveling route of about 15km ~ 9km2 ~ 25km has been arranged, which constitutes a vertical displacement monitoring system. From the point of view of observation design, the network has the following problems to be solved: the workload of field observation is large, the technical requirement is high, the precision at the end point is poor, and the observation frequency is low. Compared with precision leveling, using GPS technology to monitor vertical deformation of storehouse disk can completely meet precision leveling requirements and meet the requirements of relevant national standards, and it also has the advantages of saving time, labor, saving money, and so on. Therefore, in the report of the expert meeting on dam safety determination and inspection of Longyangxia Hydropower Station in 2007, it is required to study the feasibility of using GPS elevation instead of precision leveling to observe vertical displacement of reservoir plate and to design the grid for Longyangxia reservoir area. In order to overcome the defects of precision leveling observation system used at present, reliable data are provided for dam safety analysis. This paper adopts the research method of combining theory with practice. Through field investigation, optimization design, observation and verification, a unified design scheme was formed by GPS monitoring of vertical displacement in dam site and vertical deformation of reservoir plate in downstream area of Longyangxia Hydropower Station. The optimization design of precision leveling observation and the verification of actual measurement for Longyangxia Hydropower Station are completed.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TV698.1;P228.4
【参考文献】
相关期刊论文 前10条
1 何骞;;基于GPS的广州某公路沉降变形监测技术研究[J];测绘与空间地理信息;2012年11期
2 宋华明;黄玉英;张青梅;;GPS沉降变形监测技术在工程实际中的应用研究[J];科技资讯;2012年20期
3 吴昊旭;程鹏;宋爽;;GPS沉降变形监测技术在工程实际中的应用研究[J];科技资讯;2012年19期
4 田云锋;;利用连续GPS进行地面沉降监测[J];测绘与空间地理信息;2009年04期
5 董克刚;易长荣;许才军;王威;;利用GPS监测天津市地面沉降的可行性研究[J];大地测量与地球动力学;2008年04期
6 邓清海;袁仁茂;马凤山;李树德;;地面沉降的GPS监测及其基于GIS的时空规律分析[J];北京大学学报(自然科学版);2007年02期
7 姜衍祥;杨建图;董克刚;黄立人;周俊;于强;;利用GPS监测地面沉降的精度分析[J];测绘科学;2006年05期
8 杜瑞林,邢灿飞,伍中华,李胜乐,乔学军,游新兆,王琪,孙少安,申重阳,凌模;长江三峡库区地震地形变监测研究[J];大地测量与地球动力学;2004年02期
9 熊福文,陈基炜,李锦亮;论应用GPS定位技术监测上海市地面沉降的可行性[J];上海地质;2001年01期
10 陈义,胡丛玮,王解先,沈云中,刘大杰;GPS在城市地面沉降监测中的应用[J];测绘学院学报;2000年04期
，本文编号：2220179
本文链接：https://www.wllwen.com/kejilunwen/dizhicehuilunwen/2220179.html
