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研制的双重介质渗流水力特性试验系统,由双重介质试验模块、水循环控制模块和数据采集模块三部分组成,较好地解决了孔隙介质和裂隙介质的模拟、边界条件的模拟、止水工艺的完善和水交换信息采集等关键问题,并具有裂隙宽度可调节,精度高,自动化程度高,试验数据实时全自动采集等特点。该系统可用以研究基于双重介质模型的水量交换以及渗流场的水压分布规律以及双重介质的水力性态和渗流机制。利用该试验系统进行双重法介质渗流水力特性试验,通过趋势图直观分析、极差和方差分析和F-检验等分析手段,得出孔隙-裂隙双重介质水交换影响因子对双重介质水交换的影响能力,从大到小依次为:裂隙宽度、孔隙介质渗透系数、压力梯度、水温。
The dual medium permeability hydraulic characteristic test system is composed of three parts: the dual media test module, the water cycle control module and the data acquisition module, which can well solve the simulation of pore media and fracture media, the simulation of boundary conditions and the improvement of water stop technology And water exchange information acquisition and other key issues, and has adjustable slit width, high precision, high degree of automation, real-time automatic acquisition of test data and other characteristics. The system can be used to study the water exchange based on the dual medium model and the pressure distribution law of the seepage field and the hydraulic behavior and seepage mechanism of the dual medium. The experimental system was used to test the hydraulic characteristics of seepage through double media. Through the direct analysis of trend graph, analysis of range and variance, F-test and other analytical methods, the influence of water-pore interaction factors on double-medium water exchange was obtained Capacity, descending order are: crack width, pore medium permeability coefficient, pressure gradient, water temperature.