The ninth section of nanchang metro line 3 has been completed

On the afternoon of June 16, 2019, the receiving of the left line shield machine between jingdong avenue station and liangwan station of line 3 was successfully completed, marking the completion of the double-line connection between this area. So far, line 3 has completed the double-line connection between 9 sections.

The length of the left line between jingdong avenue station and liangwan station is 915m, the thickness of the tunnel overlying soil is 9.8m ~ 17.6m, and the minimum turning radius of the interval is 800m. "V" slope is adopted, and the maximum slope is 25‰. Then, pass gaofeng road 6, gaofeng road 5 and gaofeng road 4 successively to the west end of liangwan station. The geology of this area is water-rich sand layer with full section, which is prone to water gushing and sand gushing. Therefore, according to the key points and difficulties of this section project, experts have been organized to hold special seminars for many times to work out feasible and efficient construction plans to guide the construction.

Starting from jingdong avenue station, the left-line shield tunneling machine successfully completed the completion after overcoming construction difficulties such as water-rich sand layer, local upper soft and lower hard tunneling, and risk points such as parallel underground crossing of DN1600*1600 reinforced concrete confluence pipe of municipal pipeline.