On February 21, 2023, the Chongqing Public Resources Trading Network released the announcement of candidates for the EOD project of comprehensive management of national key coal mining subsidence areas and green industry transformation in Qijiang District, Chongqing. The first candidate for the bid was China Construction Eighth Engineering Bureau Co., Ltd. Take the lead, and form a consortium with Southwest Construction Engineering Co., Ltd. of China Construction Eighth Engineering Bureau and Liangjiang Construction Co., Ltd. of China Construction Eighth Engineering Bureau. The bidding price is 3.35 billion yuan.

Project Overview

Construction site: Ganshui Town, Anwen Town, Datong Town, Shihao Town, Qijiang District, Chongqing City

Comprehensive management project of coal mining subsidence area: comprehensive utilization of about 39.091 million tons of coal gangue in the southern mining area, comprehensive treatment of mine water, ecological restoration of 12.0 kilometers of river length, restoration of 472 wells caused by coal mining subsidence area, and repair of more than 3,200 houses , Repair road 12.5 kilometers.

Ecological protection and restoration project in the mining area: build 10,000 mu of high-standard farmland, restore and manage 10,000 mu of forest land, build a new industrial park with an industrial water supply plant covering an area of 30 mu, with a water supply capacity of 20,000 cubic meters per day; build a new sewage treatment plant of 8,000 cubic meters per day One, with a supporting sewage pipe network of about 25.0 kilometers, a new road with a total length of 13.5 kilometers, and a mine park of 360 acres.

Comprehensive utilization of mineral resources project: build a comprehensive energy station of 100 mu, build 6 pressurization stations, and heat supply pipelines of 6,800 meters. Build an ecological logistics park in the mining area, covering an area of 55 mu. Keywords: engineering news, engineering construction information, engineering construction

Green industry development projects: build 450,000 square meters of standardized factory buildings, restore 243,900 square meters of idle housing, repair and build new office space of 50,000 square meters, build supporting shelters for relocation in the park, with a total construction area of about 40,000 square meters, A new green building industry research and development center construction project of 20,000 square meters. The new coal emergency guarantee base covers an area of 300 mu; the newly built distributed photovoltaic power generation project. Editor / Zhao E