Efficacy Testing Research And Numerical Simulation Analysis Of Using The Different Unsanded Concrete Tube To Seepage Water In The Reservoir

In recent years, the reservoir and river water was efficiently used, and itplays an important role on the development of social economy, but in useprocess, due to the impact of water pollution and the using way, result to waterresources shortages and low use efficiency. With the social economicdevelopment to the promotion of quantity and quality of water resourcesdemand, adoption and development of new mining methods for continuous andefficient use of water resources is essential.Unsanded concrete slab seepage water abstraction is a new waterabstraction technology, combining river water diversion with groundwaterdevelopment. The technology than the river water abstraction is relativelysimple in design and construction, at the same time the water quality has thecharacteristics of the groundwater quality, and is suitable for the lightly pollutedwater or the high concentration of sediment water, capable of a certain degree ofwater purification, so effective development of unsanded concrete slab seepagewater abstraction has great development prospects and application value.In order to scientific and effective use unsanded concrete slab for seepagewater abstraction, and improving the theory of seepage water abstraction, thispaper combined with the actual water conservancy project in Shanxi Province," XinAnquan water abstraction engineering " using different porosity ofunsanded concrete slabs as the research object, technical route use theoreticalanalysis, combining physical experiment research with numerical simulation,providing a reference basis for select unsanded concrete slab in seepage water abstraction, summarizes and analyzes various influence factors of seepage waterabstraction, analyze restriction conditions of the effectiveness of waterabstraction. By studying come to the following theoretical results:（1）The experimental results show that seepage water change efficiency ofunsanded concrete slab under different conditions, obtained the correspondingcurve between the effectiveness of seepage water and the pressure head of theunsanded concrete slab;（2）Analysis seepage water performance changes of different porosity ofunsanded concrete slab, reached a different quantity of water requirements ofhydraulic engineering, that can be selecting the corresponding bulk density ofunsanded concrete slabs；（3）Starting from placement of the unsanded concrete slab, Comparativeanalysis the difference effectiveness of horizontal and vertical seepage whenplaced, it is concluded that when the horizontal seepage water efficiency isbetter than that of vertical water efficiency. But different placementcorresponding to different water projects, each has its advantages；（4）From the efficiency of the whole seepage water system, thecontrasting analysis the difference between the seepage system in loading filtermaterial and do not filter material. It is concluded that the effect of filter materialfor seepage water system, which is found that loading filter material can controlthe flow rate of seepage water. To achieve regulation and controlling the flowrate of seepage water；（5）Comprehensive analysis the affecting factors of seepage waterefficiency of the unsanded concrete slab. To get the various factors affecting thedegree of effectiveness of seepage water by using multivariate analysis method.For providing a basis of regulation and control performance to the seepagewater;（6）Combined with seepage flow, sing dimensional analysis to get the relationship between the quantity of seepage water under the pressure head anddensity of the unsanded concrete slab, and using fitting method to obtained thephysical test results relationship between the quantity of seepage water under thepressure head and density of the unsanded concrete slab, come to get thedifference between the theoretical analysis and practical test;（7） By using FLUENT software, the vertical seepage flow wasnumerically simulated under different conditions water of porous media model，and get the mutual authentication with the physical test results. Also studied thechange relationship between pressure and velocity of seepage flow inside thesystem, and predicted the change regularity;The main results of this study is to provide a frame of reference for theactual water conservancy engineering design and regulatory controlling...