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新河煤矿一号井1960年投产。地表标高+40米,生产水平-110米,主要开采石盒子组煤层。从1974年起,生产布局的中心从-110米水平向下延深,开采山西组煤层为主。由于山西组煤层的下伏地层为含水丰富的太原群石灰岩,层间距小,静水压力大,在开采过程中防止煤层底板突水的问题比较突出。为了保证安全开采及节约排水费用,对深部山西组煤层进行了“带压开采”。所谓“带压开采”实质上就是要控制好煤层底板承压水的安全水头问题。即开采煤层底板至太原群灰岩含水层之间的隔
Xinhe Coal Mine No. 1 put into operation in 1960. Surface elevation of +40 meters, the production level of -110 meters, the main mining stone Box sub-group of coal. Since 1974, the center of the production layout has been extended downwards from -110 meters to the main coal seams in Shanxi Province. As the underlying coal seam in Shanxi Formation is a Taiyuan group limestone with rich water content, small interlayer spacing and high hydrostatic pressure, the problem of preventing water inrush from coal seam floor during the mining process is prominent. In order to ensure safe mining and drainage costs savings, deep coal seam in Shanxi conducted a “pressure mining.” The so-called “pressure mining” is essentially to control the safety of coal seam floor pressure water head problem. That is, the coal seam floor to Taiyuan limestone aquifer interval