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Three-D Drainage Net
Three-D Drainage Net

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1) Three-D Drainage Net
2) Net core: HDPE plastic

It is used for the drainage of the rubbish filling site, road base and the inside of the tunnel.

Three-D drainage net (also called 3D geotechnical drainage board, tunnel-drainage board, drainage board) which is consisted with plastic net and per-meated geotextile both sides, can instead of traditional gravel sand. It is used for the drainage of the rubbish filling site, road base and the inside of the tunnel.

 

 

 

Three-D Drainage Net Technical Data

 

Technical Data

 

experimental technique

   units

  

Type

 

JRTD1

JRTD2

i=1

δv=20kPa

ISO12958

l/m/s

1.40

1.50

a,b,c,d,e

δv=100kPa

ISO12958

l/m/s

1.20

1.30

a,b,c,d,e

δv=200kPa

ISO12958

l/m/s

1.10

1.20

a,b,c,d,e

δv=500kPa

ISO12958

l/m/s

0.80

0.90

a,b,c,d,e

(KN/m)

Tensile Strength

ISO10319

KN/m

28.0

30.0

a,b,e

Extensibility

ISO10319

%

60

60

a,b,e

Drainage Net physical property

 

of Geotextile

-------------

-------------

HDPE

-------------

 

Material of Geotextile

-------------

-------------

PPPET

-------------

 

Antiaging Agent

-------------

-------------

 

carbon black

-------------

Geotextile

 

δv=20kPa

ISO9863

mm

7.5

8.0

a

δv=200kPa

ISO9863

mm

7.0

7.5

 

a

 

ISO9864

g/m2

1700

2000

a

Roll Width

-------------

m

2.0

2.0

a

Roll Length

-------------

m

30.0

30.0

a

Roll Diameter

-------------

m

0.64

0.66

a

Roll Weight

-------------

Kg

102.0

120.0

a

Geotextile

 

Unit Weight

ISO9864

g/m2

200--200

a

        

a:representative value  b portrait 

C:2mmHDPE   2mmHDPE condition of pad border 

dl/m/s=1.0E-03 m2/s

e25000 m2

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