山区长输气管线的曲线测设  

CURVE SURVEYING OF LONG DISTANCE GAS PIPELNE IN MOUNTAINOUS AREA

作　　者：曹彦章[1] 李静[1] 

机构地区：[1]华北石油勘察设计研究院,河北任丘062552

出　　处：《勘察科学技术》2002年第1期53-56,64,共5页Site Investigation Science and Technology

摘　　要：该文介绍了在山区长输气管线测量中 ,管线的折点桩之间大部分不通视且部分点上空有障碍物 ,采用GPS不能施测坐标时 ,结合山区的自然地理条件 ,采用全站仪间接施测折点水平角 ,极坐标法测设曲线以及跨越障碍物测设曲线的内容和方法 。The paper introduces the surveying method and contents of long distance gas pipeline in mountainous area under the conditions between the inflexion stakes mostly obstructive and partly existing obstacles from upper air, as the coordinate can not be surveyed by GPS, combining with natural geographical condition of mountainous area, the total station tachometer can be used to measure the horizontal angle of inflexion indirectly, using polar coordinate method to measure the curve and surmounting obstacles to survey the curves. These methods can be applied for certain precision requirement.

关 键 词：输气管线 曲线测设 极坐标 精度 山区 折点桩 

分 类 号：U172[交通运输工程]