摘要
采用自制改进的二维相似模拟试验台,研究带压开采时煤层底板的突水机理从而确定底板的突水位置。运用水袋铺设在煤层底板下代表承压水层,通过液压千斤顶在水袋上作用一个力使水袋均布受压,从而模拟带压开采时的底板突水,通过相似模拟试验研究,首先论证了在底板承压水和采动影响的共同作用下导致底板突水;其次还发现突水位置一般位于采空区中部的薄弱处。
The improved two-dimensional similar simulation test bench is used to study mechanism of water inrush and the water inrush location under press water mining.Water bag on behalf of the confined water. Hydraulic jack work uniform pressure on the water bag and simulating floor water inrush under the mining press. Through analog simulation to two conclusions as follow： first the combination of confined water and mining influence result in water inrush; last position generally located the weak area of the middle of mined--out area.
出处
《煤炭技术》
CAS
北大核心
2016年第11期129-131,共3页
Coal Technology
关键词
承压水
突水机理
底板
confined water
mechanism of water inrush
floor
