On September 14, 2011, with the sound of an explosion, the right part of the Gushuyan Tunnel 1 of Section W3 was dug through as the line’s first medium-length tunnel. It is also the second tunnel through after the completion of the Wujiwan Tunnel. It was constructed by the general contract department of CITIC Construction of the Chongqing Yanjiang Highway.
The right part of the tunnel is 617 meters in length and the width design for three-lane transversal lanes. It has excavated a section of over 160 square meters. Since excavation commenced in October 2010, all construction workers have overcome the difficulties such as volatile geology and tough objective conditions, and dug through the tunnel after 11 months of painstaking efforts. The construction period was completed without any safety accidents.
Now, all construction workers are renewing their efforts to quicken the follow-up work on the right part and the construction of the left part in a bid to achieve greater success!