温州城市新高程基准建立的实践与思考

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;通过对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.

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

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.