On February 26, with the start command, Ping'an (China Railway Shanhe 004) soil-pressure balance shield machine in the central city of Guangzhou underground comprehensive pipeline corridor project site slowly forward, the smooth start.

　　This start of shield machine CST004 is the second time to participate in the construction of the underground comprehensive pipeline corridor in the center of Guangzhou city. Last year, CST004 completed 1,671 meters of tunneling in just one year, becoming the first shield machine to pass through the entire line of the comprehensive pipeline corridor in Guangzhou, which was highly praised and recognized by the customer. The total length of the underground comprehensive pipeline corridor in downtown Guangzhou is about 48 kilometers, and this time CST004 (6280 soil pressure balance shield) will be responsible for the digging work of 1,150 meters in the interval of 5#-Branch 1# in the third section of the corridor.

　　Underground comprehensive pipeline corridor is an indispensable part of the construction of Guangdong, Hong Kong and Macao Greater Bay Area, China Railway Shanhe will layout the market in Guangdong, Hong Kong and Macao Greater Bay Area, continuously strengthen its own market analysis and judgment, and actively seize the opportunities for the development of shield structure in South China through innovative marketing ideas and means. The smooth start of Ping'an (CRSR 004) soil pressure balance shield machine in the comprehensive underground pipeline corridor project in the central city of Guangzhou in the year of Niu is another success of CRSR in the market layout of shield machine in China.

　　In 2021, standing at the new starting point of the national “14th Five-Year Plan”, China Railway Shanhe will continue to carry forward the spirit of pioneering ox of innovation and development, and the spirit of old ox of hard struggle, bravely respond to every challenge, and solidly promote every work, and strive for building the top comprehensive service enterprise of underground engineering!