自由设站及无定向导线观测法在沟道测量中的应用

发布时间：2018-07-15 20:28

【摘要】：北京市地下管线基础信息普查——城六区第09片区普查项目覆盖范围广泛,既包含城市中心区又包含郊区。对于相邻电力检修井之间存在转折点的沟道,采用常规测量方法很难准确、快速确定该沟道特征点的准确位置。笔者所在单位技术人员积极改进测量方法,在保证精度的基础上创造性地提出使用全站仪自由设站、对中激光投点法,一次性将地面坐标投至井下沟道内代替联系测量的方法,并在沟道内采用无定向导线测量方法布设图根控制点对电力沟道内的特征点进行测量。该方法快捷、方便、节省人力物力、大大提高了作业效率,是在沟道内测量领域的一次创新。
[Abstract]:Beijing underground pipeline basic information census-the sixth district of the city of the 09 section of the survey project covers a wide range, including both the city center district and the suburbs. For the channel with turning point between adjacent electric overhaul wells, it is difficult to use the conventional measurement method to determine the accurate location of the channel characteristic point quickly. The technical staff of the author's unit actively improved the survey method, and creatively put forward the method of using the total station instrument to set up the station freely, put the ground coordinates into the underground channel instead of the contact survey method, and put the surface coordinates into the underground channel in one time instead of the contact survey method. At the same time, the characteristic points in the power channel are measured by the method of undirected traverse measurement. This method is quick, convenient, saves manpower and material resources, and greatly improves the working efficiency. It is an innovation in the field of measurement in the channel.
【作者单位】：北京市勘察设计研究院有限公司工程测量所;
【分类号】：TU990.3

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