Draining Effect of a Tile Line

has a wide range and is of considerable importance to engineers and scientists. The Armfield.Drainage and Seepage Tank, Model S1, facilitates a detailed study of the movement of water through permeable media.
In the laboratory, we have the advantage of being able to use homogenius materials of known properties. This simplifies the problem and makes it possible toreduce the number of components involved.
Following experiment has been designed to demonstrate the most typical situations that arise in dealing with water as it moves through a permeable medium. The situations described are mostly "engineering" situations. In addition to the water and the medium through which it moves, they usually involve some artificial, or"engineering" element like a wall, a dam, a tile line etc.

Introduction

widely used to control seepage of water through permeable soils.
The objective of this experiment is to show, by visualising the flow lines, how a tile line works (ie. how it forces the end-sections of flow lines to concentrate on one point).

Objective

subsurface.

Tile drainage

clamp
6) incorporating six tapping points
7) two independently adjustable overflows (7 & 16)
8) A drain valve
9) the frame
10) adjustable feet
11) sump tank drain
12) sump tank
13) centrifugal pump
14) flow control valve
15) electrical switch

side. Two tile drains used in this experiment.
The drains are fitted into the tank at two of the six positions. Space around the overflows is kept free by using vertical sheets of perforated metal, which can be supported by the overflow pipes

Experimental stage

then filled with sand to a depth of about 450mm. The overflows are set with their tops about 25mm above sand level, before water is poured slowly into the space around the upstream overflow.
After steady flow conditions have been achieved, we introduced dye is in the usual manner at different points along the sand surface and, also along the edge of the upstream membrane.

for Hydro-geologists and Engineers) in the Laboratory for any soil type we may encounter in the field.
By visualising the flow lines we have seen how tile line works

Conclusion (What I have learned from this project)