Affected by the disaster of continuous extreme heavy rainfall in the "7.20", Zhengzhous rail transit was completely suspended. Among them, 4 stations and 14 sections in the first phase of Zhengzhou Rail Transit Line 3 were flooded to varying degrees, and a total of 3 electric passenger cars waded in water., Communication signals, bridge and tunnel power transformation, station equipment, vehicle traction and other systems have been seriously affected.
The disaster situation is the order. After receiving the entrustment of Zhengzhou Transportation Bureau, our company quickly organized experts and technicians to the scene to check the damage of the system, equipment and facilities of the post disaster line and the scope of influence on the operation. On this basis, the basis, scope and evaluation time of the evaluation are determined, the evaluation work plan is formulated, and the post-disaster equipment and facilities maintenance suggestions are put forward for the operation unit of Zhengzhou Rail Transit Line 3 with the technical support of the expert group.
After the rush repair work of the first phase of Zhengzhou Rail Transit Line 3 is completed, more than 30 experts from our team, including safety emergency management, traffic organization, equipment and facilities maintenance, vehicle, power supply system, etc., form an expert group. According to the relevant national standards and specifications, the buildings and structures of the damaged stations, sections and depots of the first phase of Zhengzhou Rail Transit Line 3 are analyzed, comprehensive and detailed verification of facilities and equipment such as lines, tracks, vehicles, communications, mechanical and electrical equipment, as well as operation organizations and emergency organization support.
During the assessment period, coinciding with the severe period of epidemic prevention and control in Zhengzhou City, the project team and the expert group completed the assessment work in depth on the premise of implementing the requirements of epidemic prevention and control, providing convenient transportation conditions for the people of Zhengzhou City to resume work and production after the disaster.
