GPS工程控制网的布设与研究

GPS技术在工程控制网的布设中具有效率高、费用低、工期短、精度高等优越性。GPS工程控制网优化设计,是实施其控制测量工作的第一步,是一项基础性的工作。全面系统地研究GPS工程控制网的布设,探讨工程控制网的设计方法,重点对GPS工程网从控制网点的分布、已知点对控制网精度的影响、坐标系统转换等方面进行研究,提出GPS工程控制网的野外观测方案和布网的优化方法。本文结合大同矿区工程实例,在几种候选控制网方案中选出最佳的布网方案。最后得出结论：不同精度、不同面积的GPS工程控制网有不同的布设方法,采用正确的布网方法,能够提高作业效率,降低作业成本。

Layout and Research of GPS Control Network

GPS technology in the project control network has the advantages of high efficiency, low cost, short construction period and the superiority of precision. GPS control network design is the first step in implementing the measurement as the basic task. The paper explores systematically the network design method focusing on the GPS project control network from the distribution network, control network of known points on the precision of the coordinate system conversion and other aspects of conducting research GPS control net- work of field observation programs and distribution network optimization. The paper draws the conclusion that GPS control network of different precision and different sizes has a different layout method and the operational efficiency can be improved and the operating cost can be reduced by using right method.