The foundation pit dewatering of subway station during excavation is an important part of the work progress.However, the job location of the subway station is generally located in the region of high population flow, and the foundation pit dewatering always brings some bad influence on the surroundings.So the foundation pit dewatering should be studied and analyzed.Based on a metro station of Line No.6 of Wuhan Metro, this paper explains the change law of surrounding building settlement and deformation of retaining structures by using the practical nonitoring data during the process of foundation pit dewatering.Main conclusions are as below:1) in terms of the influence of surrounding buildings, the effect of external foundation pit dewatering is much bigger than that of internal foundation pit dewatering; 2) the effect of external foundation pit dewatering can reduce the active earth pressure of the foundation pit lateral in some degree, and then reduce deformation of retaining structures; 3) the soil property and condition of foundation pit dewatering would have a great impact on the deformation of retaining structures.

This paper taking Wuhan metro construction for example, makes a systematic analysis of the construction program of owners company information in metro construction On the basi of grasping the Groups own management and information technology status, and understanding the company's development strategy, the platform program of information construction which consist of engineering construction management system, OA systems, security monitoring and management systems, operation management systems are set down, and the general framework and criteria of information also be proposed.are also proposed the new technical features of system in the manage ment model and structure, management business and objects, functions and implementation.

Research Purpose:With the construction and development of urban subway, the problems emerge during the metro construction when the shield tunnel traveling existing lines increased. In order to explore the influence when the shield tunnel traveling the operating line, this paper discussed different control measures based on the data recorded during the metro construction in a city and made a concrete analysis of each measure according to the deformation. Research Conclusion:To reduce the effect on the operating line when the shield tunnel traveling track group of the Beijing-Guangzhou Line, the paper made a concrete analysis of settlements of construction area. The study found that although the settlements of ground, ballast and the sleepers is higher than usual, the operation safety was ensured with the help of several control measures.