According to statistics from relevant data: In the past three years, the total demand for gravel aggregates in Chongqing has been approximately 216 million tons/year, of which approximately 0.44 million tons/year has to be purchased for transportation construction; approximately 172 million tons has to be purchased for housing and municipal infrastructure engineering construction /year. At present, the total designed production capacity of Chongqing is 158 million tons, and the effective annual production capacity is about 90 million tons.

In order to ensure the supply of sand and gravel for infrastructure construction in Chongqing, on June 19, 2020, Chongqing Expressway Group's "Chongqing Infrastructure Construction Sand and Aggregate Supply Platform" was officially put into operation.

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Teng Yingming, Secretary of the Party Committee and Chairman of Chongqing Expressway Group, said that there is a serious shortage of aggregates in the city. After purchasing supplements from outside the province, the city's aggregate aggregate gap is as high as 30%. Judging from the development level of the city's gravel aggregate industry, the scale is generally small, the investment is insufficient, the technology is backward, and there is a lack of large enterprises to lead.

According to the relevant person in charge of Chongqing Expressway Group, Chongqing Expressway Group has a wide road network layout and large construction needs. It will take local materials, focusing on the mining space within the red line of the project construction and the appropriate radius, to achieve the synchronization of mining and construction as much as possible, and to minimize Resource waste and environmental damage. At the same time, turning waste into treasure, adapting tunnel slag and other materials as processing raw materials according to local conditions to achieve comprehensive and effective utilization of resources.

At the launching ceremony, Ansan Group signed strategic agreements with the four units of Wulong District Government, China Railway Construction Reinvestment Company, China Power Construction Road and Bridge Company, and Sichuan Road and Bridge Tunnel Branch.

In addition, Chongqing Expressway Group is gradually deploying construction of mines or reclaim points in Wulong District, Nanchuan District, Liangping District, Fengjie County, Yuxiang Double Line, and Pengyou Expressway. Cao Chongzhi, general manager of Chongqing Expressway Group's Anshen Group, introduced that after the construction of the Chongqing Municipal Infrastructure Construction Sand and Aggregate Supply Platform, it will provide builders with gravel and aggregate supply, effectively increasing the city's aggregate production capacity and helping Infrastructure construction in Chongqing.

According to the China Sand and Stone Association and China Sand and Aggregate Network, in 2018, the General Office of the Chongqing Municipal People’s Government issued the “Layout Plan for the Development of Limestone Resources for Building Stones in Chongqing”, which will be deployed in the areas of West Chongqing, Northeast Chongqing, and Southeast Chongqing. A resource guarantee base, two backup resource guarantee bases and an emergency resource guarantee base, with a predicted resource volume of 27.5 billion tons, 160 new mines, renovations and expansions, resource integration and retention of mines, a designed production scale of 110 million tons/year, service life For more than 30 years, guarantee the construction of main cities and central cities, and the supply of gravel resources for major infrastructure projects. At that time, the total demand for crushed stone in Chongqing reached 133 million tons.

By 2020, Chongqing's city's crushed stone mines will be controlled within 470, and the total design production scale will be controlled within 210 million tons/year. The supply and demand of crushed stone resources in the city will be basically balanced.

Sources of related information and data: China Aggregate Net, China Natural Resources News, Hualong Net, Chongqing Expressway, etc.