On March 30, the reporter learned from the Xiangnan Project Department of the Provincial Natural Gas Pipeline Network Co., Ltd. that nine units participating in the construction of Guiyang-Chenzhou-Zixing gas transmission pipeline project have all resumed work, and about 100 construction personnel are present at present.

Sketch map of Guiyang-Chenzhou-Zixing gas transmission pipeline project

According to Wang Tao, project manager of Xiangnan Project Department of Hunan Natural Gas Pipeline Network Co., Ltd., the total length of Guiyang-Chenzhou-Zixing gas transmission pipeline project is about 78km. It passes through four administrative areas, Beihu District, Guiyang County, Suxian District and Zixing City, with a pipe diameter of 406.4mm, a design pressure of 6.3MPa, a design capacity of 827 million cubic meters / year, gas source from Sinopec Xinjiang Guangdong Zhejiang gas transmission trunk line, and a total investment of 405 million yuan.

The current progress of the project is as follows:

Line aspects:

The total length of the line is 78km, 75km has been welded, 36km has been laid and backfilled, and about 80 percent has been completed as a whole. The remaining 3km of pipeline welding, 42km of trench backfilling, 2 river directional drilling crossing, 4 railway crossing and 1 high-speed crossing are not completed.

Chenzhou first station: about 95 percent of the total has been completed, and the wiring between the remaining equipment, wall painting, equipment commissioning, hardening of the process area, etc. have not been completed.

Guiyang distribution station: about 90 percent of the total has been completed, and the wiring between the remaining equipment, wall painting, equipment commissioning, floor hardening, etc. have not been completed.

Zixing distribution station: up to now, about 90 percent of the total has been completed, and the laying of cables for the outdoor equipment of the remaining electric instruments, equipment commissioning, purging and pressure test of process pipes, wall painting, floor hardening, etc. have not been completed.

Chenzhou distribution station: about 10 percent has been completed as a whole, and the foundation construction of house building, site leveling and access road construction are in progress.

Valve chamber: the site of Huatang valve chamber in Beihu District has been leveled and 20 percent of the site has been completed. The remaining walls, valve chamber foundation and valve installation are not completed. Matouling valve chamber in Suxian District is in the process of three-way and one leveling. The valve chamber at the bridge mouth in Suxian District cannot enter the site for construction because the relocation of graves is not completed. The Xiadu valve chamber in Suxian District cannot be constructed because the land acquisition has not been completed.