温州城市新高程基准建立的实践与思考  

The Practice and Consideration to Construct the new Height Datum of Wenzhou

作　　者：陈远新 黄小明 

机构地区：[1]温州市勘察测绘研究院,浙江温州325027

出　　处：《现代测绘》2007年第1期24-26,共3页Modern Surveying and Mapping

摘　　要：本文针对原温州市区高程控制的现状,提出建立城市新高程基准网的必要性;结合温州市二等水准网建立的实践经验,阐述了城市高程基准网的方案设计、组织实施和成果的分析与利用是建立城市高程基准网的关键;从温州典型软土地基的实际出发,介绍了如何确保水准点埋石质量,以达到城市高精度的高程基准网建设;通过时温州市二等水准网复测及成果分析,建立水准点的沉降档案并提出周期性复测的要求。This paper puts forward the necessity of construct city's new Geodetic datum network according to the current height control situation of Wenzhou.Combined the practical experience of second-class leveling network of Wenzhou,we expound that the plan design,practice arrange,results' analysis and use are the keys to construct city's Geodetic datum network.In or- der to construct a high precise Geodetic datum network for city,we introduce how to ensure quality of burying the level points considering the typical soft foundation of Wenzhou.Through the resurvey of Wenzhou's second-class leveling network and anal- ysis the results,we set up level points' subsiding files and bring up the requirement of periodical resurvey.

关 键 词：城市高程基准 典型软土地基 打桩型混凝土普通水准点 精化大地水准 水准网复测 

分 类 号：P224[天文地球—大地测量学与测量工程]