Abstract
When designing structures made of sheet piles, it is often necessary to evaluate their filtration characteristics. The base material of the tongue is waterproof, however, groundwater filtration is carried out through special lock joints. The publication considers the procedure for experimental determination of the filtration coefficient of locking joints of sheet-pile fences made of polymer composite profiles based on the results of laboratory tests. Considering the mathematical model of filtration processes, it is based on a modified empirical Forchheimer dependence generalizing nonlinear filtration laws. The diagram of the test unit is given in the work. Using a specially developed method, the values of filtration coefficients at different pressure gradient values were obtained. It was found that when the sealing material is integrated into the locking joint zone, it is possible to achieve the value of the sheet-pile guard filtration coefficient of less than 10-10 m/s. The obtained results are of interest for solving the problems of the device of anti-filtration curtains with the use of composite sheet piles.
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