All-media reporter Daniel Zhang
In order to learn the lessons of the Meida Expressway collapse accident and effectively prevent the occurrence of disasters and accidents, recently, Pingzheng Expressway has carried out a special action to investigate and rectify the hidden dangers of the slope subgrade to eliminate the potential safety hazards of the roadbed in a timely manner and prevent and resolve the disaster risk.
Dragnet type thorough investigation, round-the-clock inspection. Carry out a full-coverage, all-round, and dead-end dragnet investigation of the road section under its jurisdiction, find out the current situation of the roadbed, grasp the number of hidden dangers in the roadbed, establish a repair and governance account, and use the electronic monitoring of the road section to inspect the whole process.
Highlight key road sections and strengthen source management. For the entrances and exits of toll stations and service areas, interchanges, connecting sections at both ends of bridges, and sections with serious water damage, preventive measures shall be taken in advance to dredge drainage facilities such as rapid flow troughs, drainage holes, and drainage ditches in a timely manner. The combination of "civil air defense + technical defense" is used to implement precise policies, and measures such as soil replacement and backfill tamping, adding rapid flow grooves, and repairing retaining water barriers are used to strengthen slope protection and governance.
Focus on hidden danger points and risk areas, and strengthen dual control of points and surfaces. Clarify the potential safety hazards and potential risk areas of road sections, coordinate the multi-party joint logistics linkage mechanism of "police road enterprises" all the way, increase the dynamic monitoring of larger hidden danger points, pay attention to the development trend of potential risk areas in a timely manner, and achieve dual control of points and areas.
In this special action, 37 water-damaged road sections were repaired, 521.41 cubic meters of backfill soil were tamped, 9 rapids were added, and 318 meters of water retaining belts were repaired, which effectively improved the pavement drainage structure, ensured the stability and firmness of the roadbed, verified the emergency response ability of the maintenance unit, and comprehensively improved the comprehensive prevention ability of natural disasters. Pingzheng Expressway will further summarize experience, deeply integrate special actions with daily maintenance, form a long-term working mechanism, and lay a solid foundation for safe flooding.