Combined with general conditions of engineering,the author illustrates the factors of beam linear and its control methods from deflection control,plane control and dynamic control in construction,in order to ensure the construction quality and entire impressions.

Research purposes: Through the theoretical research,this paper puts forward some suitable suggestions on the main technical standards of horizontal control survey for ballastless track construction.

Use control plane technology of ASON to reconstruct traditional optical network equipment;

A study on the survivability of control plane for ASON;

Discussion on the function structures of control plane of ASON;

Selection of the best values in the observations of horizontal control network;

Establishment of GPS horizontal control network and the construction of Huangjingling Tunnel are introduced and data processing is analyzed t,o exemplify other similar projects to a great extent.

In the surveying programming,the error ellipse with titled angle as an output should be automatically achieved after the strict adjustment of the horizontal control network.

Research purposes: The method of distributing plane control net and principles of precision design are presented in this paper through doing the researches on the design of plane control net for construction of ballastless track of passenger dedicated railway.

In this article,authors introduce key points and difficulties of the construction measure process of the main stadium project of Nanjing Olympic Sports Center,emphasize establishment and accuracy requirements of a plane control net,and state measuring and position fixing jobs of some special parts of this project.