长跨度变坡桥梁高程测量施工方案分析

Analysis of elevation survey construction scheme for long-span slope-changing bridge

以某长跨度变坡桥梁为例,对地形复杂、水准要求高的高程测量工作进行了深入研究,阐述了此类工程高程测量施工方案的设计原则,并从高程控制网布设、主桥测量、引桥测量三方面分析施工技术难点,以期为施工人员提供参考。

Taking a long-span slope-changing bridge as an example, this paper makes a thorough study of elevation survey with complex terrain and high level requirements, expounds the design principles of elevation survey construction schemes for such projects, and analyses construction technology difficulties from three aspects: elevation control network layout, main bridge survey and approach bridge survey, with a view to providing reference for constructors.