摘要
针对大跨度桥梁施工测量的技术要求 ,从桥梁工程建设出发 ,分析大跨度桥梁施工中的基本施工测量精度 ,得出大跨度桥梁的首级平面工程控制网的必要精度。提出建立特大型桥梁的首级工程控制网基本网型 ,并采用工程测量控制网优化设计程序 ,分析不同跨江宽度的设计精度。通过近几年一些大跨度桥梁的首级平面工程控制网的实例 ,证实了建立大跨度桥梁首级平面工程控制网可达到设计精度 。
For technical requirement of survey for construction of b ri dges with long span,the basic precision of survey for construction of bridges wi t h long span was analyzed;the necessary precision of controlling net for construc tion of head plane of bridge with long span was obtained.Establishment on basic net type of head controlling net for construction of outside bridge is proposed, and the design program was optimized by controlling net of survey for constructi on to analyze precision of design for various wide over river.It is proved by ex amples of recent years that design precision can be attained by establishing the controlling net of the head plane of bridges with long span,and some valuable c onclusion has been gained.
出处
《土木工程学报》
EI
CSCD
北大核心
2004年第3期85-88,共4页
China Civil Engineering Journal
关键词
大跨度桥梁
首级平面工程控制网
精度要求
精度分析
基本网型
施工测量
bridge with long span
controlling net for construction of h ead plane
Necessary precision
analysis of precision
basic type of controlling ne t$$$$
