en.Wedoany.com Reported - The subgrade works of the Jian Gong Road Port Huaitong Expressway Section 03 project have been largely completed, with bridge deck systems and pavement construction fully underway, and tunnel ancillary works entering the final stage. The project has completed a total of 753 pile foundations and the erection of 1,106 box girders. The Zipongshan No. 1 and No. 2 tunnels have achieved double-hole breakthrough. Located in the hilly terrain of Zipongshan in the Jianghuai region, this project is a strategic throat point on the eastern extension of the Dabie Mountains' remaining range. The construction team consists of over 500 builders.
Chen Sai, head of the project's Safety and Environmental Protection Department, implements a daily workflow of "morning briefing, midday inspection, and evening closure." He is responsible for safety control of key aspects such as high slopes, subgrade, access roads, and paving, and conducts violation inspections and critical process supervision for electricity use, hot work, and traffic diversion. During high-temperature periods, Chen Sai leads the implementation of staggered construction schedules and provides heatstroke prevention supplies; in rainy weather, he leads teams to inspect slope drainage, and work can only resume after post-rain acceptance. During nighttime construction, he supervises the implementation of lighting and warning measures and arranges dedicated personnel on duty. After work concludes, he organizes site clearance and equipment arrangement, ensures all hazard rectifications are closed out one by one, and simultaneously updates the records.
Zhang Biao, head of the Engineering Department, coordinates and optimizes construction technical plans, strictly implements the three-inspection system for processes, and adjusts construction techniques based on on-site geological conditions. He regularly organizes departmental meetings, dynamically adjusts plans based on the actual arrival status of materials, and has driven the project to achieve two milestone breakthroughs: the first 96-top roadbed acceptance and the first cement-stabilized subbase paving on the entire line. Currently, bridge works have completed 97.76% of columns, 96.30% of capping beams, 93.92% of guardrails, and 93.58% of beam and slab erection. Subgrade works have completed 93.51% of excavation and 90.96% of filling, while culvert works are fully completed. After the double-hole breakthrough of the Zipongshan No. 1 and No. 2 tunnels, all sunshade arch frames and sunshade panels have been installed, and the tunnel concrete pavement pouring has been completed.
Regarding pavement construction, 197,200 square meters of cement-stabilized subbase have been paved, and 44,000 square meters of cement-stabilized base course have been completed. Asphalt layer construction has commenced, with 4,533 square meters of AC-10 fine-graded asphalt concrete and 10,695 square meters of AC-20C modified asphalt intermediate course completed. Huang Tiantian, the on-site project manager, stated that the site is equipped with 4 pavers and over 20 rollers operating simultaneously at multiple points, with an average daily cement-stabilized paving volume exceeding 7,000 tons. Huang Tiantian inspects machinery layout and checks plans every morning, coordinates process interfaces and investigates safety hazards across various work faces during the day, and reviews daily data and optimizes the next day's plan at night.
In terms of material and equipment management, the project implements standardized management for core building materials such as steel reinforcement and concrete, including incoming inspection, dynamic monitoring, and traceable records. Non-conforming materials are removed from the site. The project previously won third place in the second and first place in the third Materials Competition of Jian Gong Road Port Company. Furthermore, the project has fully adopted quantity-through software, improving the efficiency of technical data retrieval by over 60%, achieving zero deviation between material verification records and actual inventory.
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