Plateau rainbow! Along the Yarlung Zangbo River, a railway is extending

At 16 o'clock on October 25, SANGRI County, Shannan City, Tibet, was surrounded by blue sky and clouds. On the Mingze super major bridge of Larin Railway on the Bank of Yarlung Zangbo River, TJ165 bridge erecting machine boomed, and a piece of 32 meter simply supported T-beam weighing 143 tons landed steadily on the pier.

Four workers in the beam shift on the pier and abutment are ready to install the support fasteners, align them, pave dry hard mortar and level them The workers are skillful and cooperative. Every process, in their hands, is like making a perfect handicraft, which is not careless at all.

A 60202 a 6033 Mingze super major bridge is 3376 meters long, with 103 piers and 2 abutments, of which 44 are located in the middle of the Yarlung Zangbo River. "This is the third hole beam erected today. It will take about 17 days to complete the track laying project of the bridge. Today, it is only 13 kilometers away from SANGRI station. " At the shop floor, Nie Yongjun, 37, the leader of the shop floor team of the Third Engineering Co., Ltd. of China Railway 11th bureau group, looks energetic and has bright eyes on his dark face

"Since the track laying began in September 2018, we have overcome such difficulties as lack of oxygen in the plateau, complex construction conditions, etc., and ensured that the construction progress is consistent with the construction period." Nie said.

There are 399.61 km main track laying and 1814 hole beam making and erecting tasks in Lalin railway. Nie Yongjun, who has rich experience in railway construction, is full of confidence in the success of the railway. At present, 106 kilometers of track laying has been completed, accounting for 26.5% of the total task, and 1133 holes of girder erection, accounting for 62.5% of the total task.

In the afternoon, the plateau is sunny, and the river flows slowly. On both sides of the north and the south, there are endless mountains. Between the two mountains, the track laying and beam erecting work is carried out in an orderly manner, and the operation process is strictly standardized. The continuous extension of the bridge, like a rainbow, across the river, for the Tibetan people set up a happy road.

Nie Yongjun said: "this is the valley of southern Tibet. The river is wide and the wind is strong. It is facing a severe sandstorm climate test. We will communicate with the meteorological department before operation. There are also advanced wind speed measuring equipment on the bridge erecting machine, which can more accurately budget the safe laying time. "

"The whole process of erecting one hole beam takes 3 hours. In this plateau area, we also set a record of erecting 7-hole beams in a day. " Liu Jun, Secretary of the Party Working Committee of the erecting project department, said, "every piece of bridge and every piece of track array are transported here from Xierong track laying base by train. A total of 3628 beams have been made along the line, and 2817 have been completed. "

Workers are still working hard in the huge beam yard and track array operation line in Qushui Caina township to produce "ammunition" for the "battlefield" in front of them. In the long rail storage area of the base, the total length of more than 200 kilometers of long rails are stacked together in a neat way. There is already more than one person tall and can't see the end at a glance.

Brief introduction of Lalin Railway

Lhasa Linzhi railway is located in the southeast of Tibet Autonomous Region. It crosses the southern Tibetan Valley between Gangdise mountain, Nianqing Tanggula Mountain and Himalayas. It crosses the Yarlung Zangbo River 16 times, with the highest altitude of 3700 meters. The design speed of Larin railway is 160km / h, and 47 tunnels of the whole line have been through 40 at present.