The concrete of the side wall of the first formwork of the shield shaft of Jingjiang Yangtze River tunnel in Jiangyin was finished

At 5:30 a.m., September 5, after 36 hours of continuous struggle, the concrete pouring of the side wall of the first formwork of the shield tunnel of Jingjiang Yangtze River in Jiangyin was completed successfully.

According to introduction, the side wall pouring this time is the first mold side wall of the initial well of shield construction. The side wall is 103m long, 4.75m high and 1.5m thick, and the overall pouring volume is about 710 square meters. For the smooth casting, jiangyin jingjiang Yangtze river tunnel headquarters organized a side wall of concrete quality control will, construction technology, construction technology scheme seminar will guide, detailed construction organization design, and organize the construction units, scientific research units for flow state of self-compacting concrete mixture ratio, construction technology to carry out the research, conducted a series of experiments.

The successful pouring of the first mold side wall of the initial shaft of shield tunneling in Jingjiang Yangtze River tunnel in Jiangyin is a new exploration to solve the leakage problem of the initial shaft, and also marks the entry of a new stage of the main structure construction of the initial shaft of shield tunneling, laying a solid foundation for the smooth launching of the shield tunneling machine.