适应路径变化的长线里程桩一体化测设方法研究  

Research on integrated surveying and setting method for long-distance mileage pile adapted to path variation

作　　者：张辛 姜本海 沈智娟 ZHANG Xin;JIANG Benhai;SHEN Zhijuan(Changjiang Spatial Information Technology Engineering Co.Ltd.,Wuhan 430010,China)

机构地区：[1]长江空间信息技术工程有限公司(武汉),湖北武汉430010

出　　处：《人民长江》2020年第4期147-151,共5页Yangtze River

摘　　要：里程桩是工程建设、运行和管理的重要标识。长线工程由于线路距离长、坐标系统复杂,并分段设计施工,其里程桩的测设尤为困难。针对上述问题,提出了适应路径变化的长线里程桩一体化测设方法。该方法能根据长线工程任意的直线及曲线路径变化,快捷地计算出工程里程的中心线坐标;并通过计算中心线的垂线或法线方位角确定埋设点与中心线的距离,进一步推算出里程桩埋设点的坐标。该方法能一体化地解决长线工程里程桩存在的编号不一致、规格不统一、坐标有偏差、路径多样化等问题。该方法已成功应用于南水北调中线干线工程公里桩及百米桩的测设工作,并可推广应用于公路、铁路、市政等领域的长线工程中。Mileage pile,an important sign of engineering construction,operation and management,is of great significance.Due to the long distance,complex coordinate system,design and construction by section,it is particularly difficult to survey and set mileage piles for the long line project.In view of the above problems,an integrated surveying and setting method of mileage pile adapted to path variation is proposed.This method can calculate the center line coordinates of engineering mileage quickly according to variation of any line or curve path in the long-distance project.Furthermore,it is able to determine the coordinates of mileage pile buried points by calculating azimuth angle of vertical or normal line for the center line and by determining the distance between buried points and center line.This method can solve the problems of inconsistent numbers,inconsistent specifications,deviated coordinates and diversified paths of mileage piles in long-distance project.This method has been successfully applied to the survey of kilometer pile and 100-meter pile in the Middle Route of South-to-North Water Diversion Project,and can be extended to other long-distance projects in highway,railway,municipal works.

关 键 词：长线工程 里程桩 一体化测设方法 适应路径变化 南水北调中线干线工程 

分 类 号：P258[天文地球—测绘科学与技术]