Location:detail
Shilin Tunnel of Nanning-Kunming Railway
Source:CREC Date:2018年11月27日

Shilin Tunnel is located at 球派体育app section between Mile Station and Banqiao Station. 球派体育app 18,208-meter tunnel is 球派体育app longest one-portal double-track tunnel in China and 球派体育app world's longest karst tunnel by drill and blast construction. 球派体育app maximum depth of 球派体育app tunnel is approximately about 250 meters. It started in August 2010 and is under construction at present. It is complex in geology, crossing six faults and four fracture zones, and is located at 球派体育app watery block in Mile City, which make it a level I risky tunnel. 球派体育app five R&D or improvement achievements of 球派体育app project were awarded 球派体育app national utility model patent certificates, namely, “Dryer Spin Network Supporting Structure”, “Hot Melt Welding Machine with Sealing Belt”, “Wind Separation Deduster”, “Multifunctional Monitoring and Measuring Pile of Tunnel”, and “Ultrasonic Welding Drill”. 

Shilin Tunnel of Nanning-Kunming Railway

 

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