煤矸石非Darcy渗流的渗透特性试验研究

Experimental Study on Permeability Characteristics of Non-Darcy Flow of Gangue

利用自行设计的岩石渗透试验系统,采用稳态渗透法测试了10件标准煤矸石试样非Darcy渗流时的渗透特性。通过最小二乘法对渗流速度和压力梯度进行回归分析,得到煤矸石的Darcy流渗透率、非Darcy流渗透率和非Darcy流β因子。研究结果可为工程中煤矸石做充填材料提供参考。

Using a self-designed seepage system, the permeability characteristics of 10 gangue samples were tested by steady permeability test. Permeability of Darcy flow, permeability of non-Darcy flow and non-Darcy flow factor were obtained by regression analysis on seepage velocity and pressure gradient by the least square method. The results will provide references for the project of gangue as filling materials.