What are the main principles and steps of site selection?

Basic principles of site selection:

1. Requirements for regional location

(1) Be as close as possible to the origin of raw materials and fuels and the sales area of products;

(2) Stay away from strategic targets such as important railway hubs, large bridges, large oil depots, important military projects and airports;

(3) Avoid high-voltage transmission lines and urban underground pipelines;

(4) Projects that may produce industrial wastewater should be located in the downstream of towns, rivers, port areas and water sources;

(5) For projects that may produce a large amount of waste gas, they should be located in the downwind of the town;

(6) Conforming to local planning requirements;

(7) In the cultural relics area or scenic protection area, there should be a consent document from the local competent department.

2. Site area requirements

The site area should meet the land use requirements and environmental conditions of facilities such as production areas and garbage treatment plants, and appropriate development land should be reserved.

3. Terrain requirements

(1) can meet the requirements of production technology and transportation layout, and has appropriate development space;

(two) not affected by natural disasters such as floods and tides and the threat of dam failure of large reservoirs;

(3) The shape of the plant site should be as simple as possible, and the terrain slope should not be too large, so as to reduce the earthwork volume;

(4) For some industrial projects, such as some mineral processing plants, cement plants, chemical plants, food factories, etc. It is required to use hillside topography for construction, and sand, slurry, liquid and slag in the production process can flow by gravity to reduce production costs;

(5) Do not occupy or occupy less cultivated land and forest land, and demolish less houses or other buildings (structures).

4. Requirements for engineering geology and hydrogeological conditions

(1) The allowable bearing capacity of geotechnical foundation should meet the engineering requirements, and generally it should not be less than 100kPa, and it should not be less than150 kPa for the workshop with heavy load;

(2) Try to avoid the complication of foundation engineering caused by engineering geological and hydrogeological problems; (3) The factory should be located in an area with an earthquake intensity below 9 degrees;

(4) Avoid selecting factories in collapsible loess areas above Grade III, expansive soil areas at Grade I, areas with poor engineering geology such as karst and quicksand, and areas directly endangered by landslides and mudslides.