管线点高程自动计算程序设计与应用  

Design and application of automatic calculation program for pipeline point elevation

作　　者：张中南 ZHANG Zhongnan(Fuzhou Institute of Investigation and Surveying,Fuzhou 350100)

机构地区：[1]福州市勘测院,福建福州350100

出　　处：《福建建筑》2020年第12期167-171,共5页Fujian Architecture & Construction

摘　　要：地下管线外业勘测过程,由于现场地形地貌的复杂性、地下管线为非金属管线等原因,以及内业数据处理过程管线属性操作误删除等各种因素,导致地下管线数据中部分管线高程或埋深值缺失,对后期道路施工以及管线三维建模造成一定的困扰。基此,利用已有的地形图与管线数据,构建地面DEM及模拟管线曲线,近似求出管线点的三维坐标及管线与地面的距离,则可实现非测量管线定位。In the field survey of underground pipelines,due to the complexity terrain,the non-metallic underground pipelines,and the in-correct deletion of pipeline attributes in the process of field data processing,some pipeline elevation or buried depth values are missing in the underground pipeline data.In the later stage of road construction and pipeline 3D modeling,it will cause some problems.This article use the present DLG and underground pipe data to build DEM and simulation curve。In this way,Unit of measurement can get the pipe point’s 3D coordinate,and the distance between the pipe point and the ground without surveying.

关 键 词：地下管线探测 地下管线三维建模 DEM内插 最小二乘法 

分 类 号：TU19[建筑科学—建筑理论]