煤炭技术
煤炭技術
매탄기술
Coal Technology
2015年
11期
139-140,141
,共3页
瓦斯压力%水力冲孔%增透效果%有效影响半径%数值模拟
瓦斯壓力%水力遲孔%增透效果%有效影響半徑%數值模擬
와사압력%수력충공%증투효과%유효영향반경%수치모의
gas pressure%hydraulic flushing%effects of increasing permeability%effective radius%numerical simulation
基于渗流机理，建立了球型径向渗流模型，采用COMSOL软件模拟了冲孔半径、初始瓦斯压力、抽放时间、布孔方式等因素对水力冲孔瓦斯卸压效果的影响。在土城矿进行了现场试验，取得了与模拟结果的一致性。
基于滲流機理，建立瞭毬型徑嚮滲流模型，採用COMSOL軟件模擬瞭遲孔半徑、初始瓦斯壓力、抽放時間、佈孔方式等因素對水力遲孔瓦斯卸壓效果的影響。在土城礦進行瞭現場試驗，取得瞭與模擬結果的一緻性。
기우삼류궤리，건립료구형경향삼류모형，채용COMSOL연건모의료충공반경、초시와사압력、추방시간、포공방식등인소대수력충공와사사압효과적영향。재토성광진행료현장시험，취득료여모의결과적일치성。
Based on the percolation mechanism,spherical radial seepage model is established. Simulates the radius of borehole, initial gas pressure, time of gas drainage and the arrangement of boreholes which influence the effects of the increasing permeability about hydraulic flushing with COMSOL software.And tested in coal mine in Tucheng, the test results are consistent with the results of simulation.
