Participating units in all sections of the Guangzhan high -speed rail gathered in Yangchun to hold an observation meeting

Yangjiang Day News (Reporter/Li Liuzhi Correspondent/Chen Wei) On August 25, the main personnel of the participating units of various bidding sections of the Guangzhan High -speed Railway gathered in the five standards of the China Railway Three Bureau in Heshui Town, Yangchun City Earth Tunnel. The Guangzhan Railway Company and China Railway Establishment of the Guangzhan Railway Project General Contracting Project Department organized a tunnel standardization construction observation meeting to actively promote the standardization of the Guangzhan high -speed rail tunnel.

It is understood that Guangzhan's five standards have a total length of 28.78 kilometers, and the bridge tunnel project accounts for 95.78%of the length of the bid section, of which 88.32%of the tunnel projects are 88.32%. The Ling Tunnel is 10.99 kilometers in length and the construction conditions are complicated.

Because the main structure of the project is tunnel and a high proportion of three -level surrounding rocks, how to control the tunnel light blasting is the focus of the project department. In this regard, the project department and the technical development department of the China Railway Third Bureau Group Corporation invited external experts to set up a research team to conduct special research on the light and blasting process, and strengthen the research on topics from the aspects of blasting technology and fine construction management. Construction methods, procedures, and standards for face blasting.

This observation activity mainly observes the layout of the ground tunnel export area, pre -geological forecast, blasting excavation, initial support, leaning arches, lining and grooves, cave doors and affiliated projects. Advanced in resource allocation, construction operations, process connection and other aspects. After the observation activity, the representatives of each observation unit conducted experience exchanges on how to further strengthen the standardization of tunnel construction, and said that they should take this observation meeting as an opportunity to learn advanced experience, and to find a gap and control standards in the control standards.

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