In order to deal with the interval shield complex geological and solve the related problems in water rich sand ，gravel originating, boring parameter setting, May 4th to 5,take Metro Line 1, the project of China Railway twenty-one Bureau of rail transit test section of the Department,invited experts, the owners, the third party inspection,quality supervision station, supervision and part of the tool supplier held the first shield construction technology measures experts,  discuss the construction scheme feasibility and construction safety interval  on shield crossing the world (Century Avenue) - Ying (Ying door Beach). It is reported, after nearly a month of efforts,"Jincheng 1" have been assembled and finally into the commissioning phase.

At  the meeting, the project department and the railway construction of the interval geological conditions and construction scheme and originating, tunneling shield machine cutter, cutting tools configuration scheme is introduced to the experts. Appraisal meeting, the panel discussed the plan, agreed that the scheme with reasonable, operable. Aiming at all kinds of risk in the world - Ying interval shield construction process are discussed, some opinions and suggestions on the construction of Lanzhou Metro technical measures proposed. The expert advice and research, provides many useful methods and plans for the smooth progressand risk control of shield, provides valuable technical support for the preparation of construction organization,the feasibility of.

Experts from the China Railway Southwest Science Research Institute of China Railway, China Railway two bureau, thirteen Bureau, Metro Inc, Chengdu Railway Tunnel shares technology Service Corporation, Chinarailway construction, and Lanzhou Orbital Corporation,Tieke supervision, China Railway First Survey and Design Institute, Lanzhou municipal Quality Inspection station, the Department of science and technology, group companysupplies equipment, Liaocheng Ruizuan, Heng Ma shield cutters, project department and other relevant person in charge of a total of 54 people attended the meeting.