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At 21:20 on October 8, after more than 50 hours of full rush repairs by more than 160 rescue workers of China Railway 12th Bureau Group, a cargo train safely passed the Changyuan River Railway Bridge, and Nantongpu was interrupted by heavy rainfall. The up-line of the railway is rushed through.
Since October 3, continuous heavy rainfall has occurred in many places in Shanxi Province, which has caused dangerous situations on many transportation lines. The precipitation in Qixian County of the Nantongpu Railway reached 188.3 mm. The rainfall time is long, the rainfall is large, and the process is rapid. The average daily rainfall and the maximum daily rainfall are approaching historical peaks. At 9:50 am on the 6th, the Changyuan River Bridge between Qixian Station and Dongguan Station of Nantongpu Railway suffered a dam break due to the surge of Changyuan River water level. All interrupted.
At 11 o'clock in the morning on October 6, after receiving the formal emergency notice from China Railway Taiyuan Bureau Group Co., Ltd., China Railway 12th Bureau quickly established a temporary emergency rescue team composed of four-level management personnel from the group headquarters, Shanxi business department, engineering company, and project department. Headquarters; Coordinating the subordinate municipal company’s Binhe East Road South Extension Project Department at the first time, the Fourth Company’s Taiyuan City Project Construction Headquarters, the Guandi Mine Tunnel Node Detour Project Department, and the Mud Line Reconstruction Project Department, etc. to enter the emergency rescue Prepare, activate the emergency rescue mechanism, quickly sort out emergency supplies, and simultaneously set up the "Nantongpu Railway Emergency Team"; according to the division of work, quickly set up four tasks: on-site rescue team, material preparation team, equipment coordination team, and logistics support team Group.
At 12:20, a rescue assault team composed of more than 160 builders brought together rescue materials to the designated rescue locations, becoming the first unit to arrive at the scene and immediately put into the rescue operation.
According to the allocation of emergency rescue tasks, the group mainly undertakes "hard" construction tasks such as the 30-meter-long and 18-meter-deep suspended section of the Nantongpu Railway’s upper line, filling of slopes, and surrounding pile foundations, ensuring that it will be early on October 8. Grab the pass.
In the face of the surging water potential and deep-water subgrade filling operations, the rescue headquarters promptly discussed and put forward a plan to divert the flood from the secondary blasting operation of the barrage dam, and reduce the continuous flooding of the flood to the operation area; The three-layer filling scheme of schist, schist + sand and gravel, and water-stable layer is carried out synchronously for mechanized construction; the operation team is divided into labor, and each perform its duties to carry out grid management to ensure the orderly operation of each process; to reduce floods on the pile foundation For scouring, rescue team members direct various types of machinery to carry out uninterrupted flow operations of “transporting, inverting, pushing and reorganizing” pile foundation enclosure; coordinate and cooperate with China Railway Taiyuan Bureau Group Co., Ltd. and the local government to deploy materials such as rubble, ballast and other materials through multiple channels Materials, to ensure that the whole process of emergency rescue "does not stop work, do not waste work".
In more than 50 hours of continuous rescue operations, rescue team members worked in the rain from time to time to overcome many problems such as road washout, flood erosion, shortage of raw materials, narrow working surface, large temperature difference between day and night, and successively invested in loaders, excavators, and road rollers. There are more than 40 large-scale machinery equipment such as cranes and cranes, more than 12,000 square meters of rubble and more than 18,000 square stones are filled, and the rescue mission is completed on time and quality.
With a total length of 528 kilometers, Nantongpu Railway is an important passenger and freight transportation channel running through central and southern Shanxi. There are 60 pairs of trains daily, of which coal transportation accounts for more than two-thirds of the freight volume of Nantongpu Railway. The smooth completion of the line in a short period of time provided a solid guarantee for Shanxi's coal supply and transportation. The picture shows the repair site.
