Operation Instruction for Civil Works of Coal Sinking Basin

1、 Lince Line Project Overview 1.1. Project Overview Linhe Ceke Railway is located in Bayannur City and Alxa League in the west of Inner Mongolia Autonomous Region. The project starts from Linhe Station of Baotou Lanzhou Railway on the Beijing Lanzhou Corridor in the east, and then passes through Hangjinhou Banner, Wulathou Banner, Dengkou County, Alxa Left Banner, Alxa Right Banner Ejina Banner, and then use the Jiace Railway under construction to the north to reach the port of Ceke, with a total length of 759.582km. Bid section XX includes track laying and beam erection (including beam fabrication) within the scope of DKXXX ～ DKXXX and DKXX (＝ DKXXX) ～ DKXXX ～ Jiace Line KXXX. Jiace Line is a special railway line from Jiayuguan to Zeke built by XX Iron and Steel Group Corporation, which has been put into operation. 1.2 Main engineering items and quantities: 394.716km of main track laying, 25.56km of station track laying, 350 holes of beam fabrication and erection, including 324 holes of 32m T-type simply supported beam, 4 holes of 24m T-type simply supported beam, and 22 holes of 16m T-type simply supported beam. 3、 Operation Instruction 3.1 Overview This operation instruction makes specific provisions on the construction survey and construction technical preparation in the early stage of the laying and erecting project, defines the contents of the construction survey before the commencement of the laying and erecting, and the specific measures for the construction technical preparation. 3.2 Scope of application This instruction is only applicable to the preparatory work for the preliminary construction of the laying and erecting works of Section XX of Lince Line. 3.3 Construction survey Before track laying and beam erection, relevant personnel shall be organized to conduct construction survey on bridges, subgrade, stations, tunnels, etc. of the whole line for Bid Section XX of Lince Line. 3.3.1 Contents of construction survey: 1. Investigate and measure the clearance and other obstacles that may affect the passage of machinery, such as high and low voltage transmission lines, communication media lines (optical cables), highway and railway overpasses (overpasses), roads, tunnels, etc. that cross the line in the running section of track laying and beam erecting machinery. Put forward handling suggestions for the problems found in the above investigation; 2. Investigate the location, topography, traffic roads, water and electricity supply, etc. that may be used as the paving and erecting base, the assembly and disassembly of paving and erecting machinery, and the parking of engineering campers; 3. Understand the construction progress of projects related to track laying and beam erection, and propose the schedule of track laying and beam erection; 4. Investigate and understand the penetration survey of line, bridge centerline and benchmark, and verify the setting of line spacing, line centerline stake, line foundation stake, benchmark stake, bridge bearing cross line, etc;