The laying of the main line has been completed by 97%, and the remaining more than 20 kilometers.
Jingzhai tunnel, with a total length of 9.5km, is a single track tunnel with a speed of 160km / h.
The static acceptance is in full swing.
Since the commencement of construction, Jingzhai tunnel has experienced nearly a thousand dangerous situations such as water inrush, mud inrush, collapse and soft rock deformation.
For the construction of ballastless track in single track tunnel, due to the narrow construction space and channel, low construction efficiency, discontinuity and segregation are easy to occur in the concrete pouring process.
At present, the old fellow railway subgrade, bridge, tunnel and four electrical project have been completed.
The decoration of the station building is coming to an end.
Ballastless track is the last process before track laying of new railway.
The whole line will be paved in October, and will enter dynamic acceptance and trial run.
After completion and opening, the train will pass in only 4 minutes.
On June 5 this year, the whole tunnel of Jingzhai tunnel was connected safely.
The maximum water inflow per day is 75000 cubic meters, which can fill 30 standard swimming pools.
On October 3, the pouring of the last Monolithic Track Bed Slab of Jingzhai tunnel marked the completion of the construction of ballastless track slab of the whole line of China Laos Kunming Ming Wanxiang railway, creating favorable conditions for subsequent track laying and opening to traffic at the end of the year.
It is also the last “fortress” conquered in the whole line.
The builders need to carefully organize to make the construction of each process smooth and the connection between processes close, and monitor and adjust the concrete performance in real time, so as to ensure that the quality meets the standard.
After completion and opening to traffic at the end of this year, it will only take more than 3 hours from Kunming, Yunnan to Jinghong, and it is expected to realize direct transportation and access to Vientiane, Laos on the same day.
Source: Kunming daily [recommended] click below.
In the face of large remaining quantities, difficult construction of initial support deformation, limit invasion, collapse and arch removal and replacement, high safety risk and construction pressure, the construction unit worked together to complete the secondary lining construction on September 23 and start the construction of ballastless track through scientific construction organization and strengthening safety control.
It is reported that the old fellow railway from north to Kunming, Yunnan, is south to Yuxi, Puer, Xishuangbanna Dai Autonomous Prefecture, and China’s old border port, and to the Vientiane of Laos, with a total length of more than 1000 kilometers.
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