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Ground drainage system - uses water-guiding layer comprising strips of drainage sheet
Ground drainage system - uses water-guiding layer comprising strips of drainage sheet
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机译:地面排水系统-使用包括排水板条的导水层
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摘要
The system drains water-bearing ground by inserting drainage components in it and placing a guiding lamp over it. The layer being sealed at the top by water- and air-tight sheet, pressure being then reduced below the latter. The layer is formed by one or more skin-like strips of drainage sheet (2) joined together. A sheet permeable to water can be placed between the ground containing the drainpipes etc. (3) and the drainage strips. All sheets and strips can be installed at the same time.
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