GNSS点埋石及预制工艺的改进  

Improvement of buried stone and prefabrication technology for GNSS point

作　　者：庞正辉 李金涛 吴小串 李群喜 邓廷银 PANG Zhenghui;LI Jintao;WU Xiaochuan;LI Qunxi;DENG tingyin(Cewud Group Company Limited,Wuhan,Hubei 430079,China)

机构地区：[1]中工武大设计集团有限公司,湖北武汉430079

出　　处：《测绘标准化》2023年第2期112-115,共4页Standardization of Surveying and Mapping

摘　　要：传统的C级GNSS点采用三角测量的基本(普通)标石类进行埋石,造成观测及后期维护不便,而且不能满足与水准点共用的条件。同时,B、C级GNSS点上部标石预制(现浇)不仅工艺繁琐,而且工效较低,标石标识美观度和质量较差。针对上述情况,本文采用了新型标石类型,通过对标石外框模具及标识印制等的改变和调整,有效解决了GNSS点和水准点埋设标石的共用性,使得B、C级GNSS点上部标石预制(现浇)工艺得到改进且工效提高显著,GNSS点标石成品质量优异且美观,可在其他基础控制测量项目中进行推广应用。The traditional C level GNSS points follow the basic(common)marker stone type used in triangulation,which is inconvenient for burial,observation,and later maintenance,and does not meet the conditions for level point sharing.The prefabrication(cast in place)process of the upper marker stones of B level and C level GNSS is cumbersome and inefficient,and the aesthetic and quality of the marker stone markings are poor.In view of the above situation,a new type of marker stone adopted is described in this paper.Through the change and adjustment of the outer frame mold of marker stone and logo printing,the sharing of GNSS/leveling point embedding marker stones is effectively solved,which makes the prefabrication(cast in place)process of the upper marker stones of B level and C level GNSS point standardized and improved,and the industrial efficiency is significantly improved.The quality of the finished GNSS marker stone is excellent and beautiful.It can be popularized in other basic control measurement projects.

关 键 词：GNSS 埋石 控制点 预制工艺 

分 类 号：P231[天文地球—摄影测量与遥感]