Анализ технологических и технических особенностей применения опускных двухслойных гравийных фильтров со съемным защитным кожухом

Abstract

For cutting and equipment of water-supplying part of the hydrogeology's boreholes, represented heterogeneous, middle, fine-grained and dust's sands, the row of technologies and constructions of movable gravel filters is offered with the removable protective casing, analysis of which and is presented in this article.