The left side of the shield section of hefei rail transit line 4 is completed

On the morning of April 15, the left side of the shield tunnel between jiming mountain road station and sci-tech city depot of line 4 of hefei rail transit was successfully completed, becoming the single tunnel of line 12 of line 4.

The left section of the shield is 719.731 meters long. The shield tunneling machine started from jiming mountain road station and advanced along wangjiangxi road to the depot of sci-tech city. During this period, it passed through gas, sewage and other important municipal pipelines of junggongling road for many times, and passed through major risk sources such as bridge piles and bridge piles of wangjiang west road on its side, which posed great construction risks. Since the construction of shield interval, city rail company leading the contractors adhere to the "safety standardization, quality standardization, scientific progress, the civilized construction norm" and so on four modernizations management as the gripper, elaborate organization, planning in advance, to overcome the earth embargo, continuous rain after the Spring Festival, such as difficulties, successfully completed the shield interval of the left line through target.

Up to now, 11 of the 31 stations on line 4 have completed the roof sealing of the main structure. There are 35 shield tunneling machines across the line, and 29 shield tunneling machines have been put down, and 21 shield tunneling machines are under construction. The total number of shield tunneling projects has reached 23.57%.

In the next step, hefei railway company will continue to lead all the participating units to gather strength and overcome difficulties, set off a working upsurge of hard work and quick work, and make solid progress in various engineering construction to ensure that the construction of the city's rail transit will continue to maintain a good and fast development trend.