矿区概况（General situation of mining area）.docVIP

矿区概况（General situation of mining area） General situation of mining area I. General Situation of mining area: Shuangyashan mining area is located in Shuangyashan City, and across the boundaries of Jixian, Baoqing two counties. Production, construction and planning of Mines The division is in four coal fields, namely, Shuangyashan coalfield, Jixian coalfield, Baoqing coalfield and double birch coalfield. All coal fields are covered Cap type coalfield. The mining area is convenient for transportation, and the state railway is blessed with the front line and the good double lane. The mine has a railway area of 173 kilometers. Inner mining area The roads are in all directions, interlinked with each mine, and are connected with the main highways of the city and county. Shuangyashan coalfield high lying south-west, north-eastern low belongs to hilly and plain area, generally at an elevation of 65 ~ 300 meters, the periphery of Laotudingzi and seven lazishan highest elevation of 854.3 meters and 852.7 meters in elevation, the production wellhead From 94 to 222 meters, coal safety, Qixinghe River, bang he flat stone and two river sub four seasonal rivers, rivers flow The amount of change is bigger, the rainy season is 494 ~ 596 cubic meters / second, generally 2 to 174 cubic meters per second, the winter freeze period only There is a little undercurrent. The mining area is a continental monsoon climate with a cold temperate zone. The average precipitation since 1956 is 534.4mm, 1981 The annual maximum was 857.2mm, and the minimum was 302mm in 1975. Winter mostly northwest wind, summer mostly southwest wind. Two. Geological survey of mining area: 1. strata: The stratigraphic system of the mine shows the stratigraphic chart. Stratigraphic table Had today - - - - - - - - - today today -- today -- chrysene The system offers offers offers offers field group contact thickness (m) offers offers - - - - - - - - - - - - - Offers new quaternary alluvium offers offers offers offers off