Five steps of tunnel construction: Tunnel construction is the abbreviation of New Austrian Tunnel Construction Method. It is a reasonable construction method proposed by Austrian scholars from the perspective of rock mechanics in the long-term practice of tunnel construction. It is a new engineering construction method formed by a system composed of technology, monitoring and measurement, etc., and rock mechanics theory.
BIM technology is used for simulation applications to assist decision-making and improve the ability to manage and control the entire process of engineering construction, thereby improving the quality of engineering construction.
The BIM application of the Beijing-Xiongxiong Intercity Railway has pushed the application of BIM technology in the railway industry to a new height and depth in many aspects. It is a milestone event in the history of the development of railway BIM technology.
At present, there are mainly two types of urban rail transit track beds: integral track bed and gravel track bed. T
The evacuation walkway is made of phenolic resin as the matrix material and glass fiber roving as the reinforcing material, which is made by the pulltrusion process
Ss35 Screw Spike( with Uls7 flat washer) is also called Ss35 rail screw or Ss35 sleeper screw, it is the fasteners of W14 Rail Fastening System. Ss35 Rail Spikes are used to fix the tie plate or fasten the rail to the concrete sleeper with the help of Sdu25 plastic dowel.
3 Automatic rail spike production lines realize fully automatic of loading, unloading, hot forming, hot threading of spikes, the maximum output is 30,000 Pcs/day.
The bolt production lines in Anyang Railway Equipment Co., Ltd are adopted all-solid-state, super-audio heating equipment to heat the workpiece and automatic special thread rolling machine, the maximum output is 20,000 Pcs/day.
The CJ-2 fastening system is elastic, direct. It has been designed to replace the RN elastic fastening that has been used since the RS type concrete sleeper began to be used, in RENFE, and to improve the P-2 fastening currently used, whose conception is the same.
5 Gauge plate production lines, the section steel of gauge plates are made of special-shaped section steel rolled by our steel rolling production line, and the rail clamps are hot rolled, the maximum output is 120,000 pcs/day.
2 Automatic casting production lines are composed of the sand casting process, and the mechanized automatic molding has high production efficiency.
The screw spike production line in Anyang Railway Equipment Co., Ltd(AT) is composed of automatic multi-station cold upsetting machine and thread rolling machine, the maximum output is 60,000 Pcs/day.
8 automatic rail clip production lines in Anyang Railway Equipment Co., Ltd(AT) realize the automatic loading, hot forming, and heat treatment of rail clips, the maximum output is 120,000 Pcs/day.
The tunnel segment bolt production line in Anyang Railway Equipment Co., Ltd(AT) is composed of all-solid-state IGBT heating equipment to heat the workpiece and automatic special thread rolling machine, the maximum output is 15,000 Pcs/day.
