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"A Herança das Minas Abandonadas - O Enquadramento e a Situação em Portugal"

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A Herança das Minas Abandonadas 87<br />

Pormenor do esquema de recobrimento da escombreira e da vala de drenagem periférica<br />

Detail of the outer covering of the waste dump and of the peripheral drainage ditch<br />

Terra de carácter vegetal<br />

Topsoil<br />

Areia Sand (A)<br />

Brita Gravel (B)<br />

Geotêxtil 300gr/m 2<br />

Geo textile membrane<br />

Tela PEAD 2.00mm<br />

HDPE sheet<br />

Inertes<br />

Inert materials<br />

PIRITES<br />

0.60<br />

0.25<br />

0.30<br />

z 0.50<br />

4<br />

1<br />

Impermeabilização do fundo<br />

Bottom permeability reduction<br />

(ver des. IV3MAD12)<br />

Tela PEAD HDPE geomembrane2.00mm<br />

Material granular grosseiro(40-60)<br />

Gross granular material (lumps)<br />

Geodreno<br />

0.30 0.30<br />

0.25<br />

1<br />

1<br />

1<br />

Tela PEAD 2.00mm<br />

HDPE geomembrane<br />

Brita Gravel (1.5-70mm)<br />

Tubo PEAD Ø300 perfurado<br />

HDPE perforated conduit<br />

0.10<br />

0.30<br />

2.50<br />

Areia Sand (0 .07-10mm)<br />

Enrocamento Rock filling D50=100mm<br />

Dmáx.=350mm<br />

TN<br />

0.20<br />

Brita Gravel ( 40 60)<br />

Geotextil 200gr/m2<br />

Geotextile membrane<br />

3

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