论文部分内容阅读
城市地下管线的测量工作是一个城市运行发展的重要保障,这就要求不仅要建立完善的地下管线数据库,并且要开展相应的维护工作,保证其具有很好的现势性。本文首先对地下管线数据库的建立、维护的必要性进行阐述,同时举例直接法、70%法以及夹钳法等方法在地下管线现势性维护中的作用,并在制度的基础上提出管线竣工测量的方法,对地下管线数据库维护有一定参考。
The measurement of urban underground pipeline is an important guarantee for the development of urban operation. This requires not only establishing a perfect underground pipeline database, but also carrying out corresponding maintenance work to ensure that it has a good current situation. In this paper, firstly, the necessity of establishing and maintaining underground pipeline database is expounded. At the same time, the functions of direct method, 70% method and clamp method in underground pipelines are put forward. And on the basis of the system, The method of underground pipeline database maintenance have some reference.