Untitled - Future Pipe Industries
Untitled - Future Pipe Industries
Untitled - Future Pipe Industries
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Installation type I<br />
ASTM D1586 Blow counts<br />
Installation type II<br />
ASTM D1586 Blow counts<br />
Installation type III<br />
ASTM D1586 Blow counts<br />
Installation type IV<br />
ASTM D 1586 Blow counts<br />
Installation type V<br />
ASTM D 1586 Blow counts<br />
Table 5: Installation selection tables for SN 18 psi pipe<br />
Trench width requirement (W)<br />
Max<br />
Soil Group Soil Group Soil Group Soil Group<br />
Cover<br />
H<br />
Ft / m<br />
1<br />
s. compact / stiff<br />
12<br />
2<br />
Loose / medium<br />
3<br />
Soft<br />
4<br />
vloose/vsoft<br />
N>9 N = 5-8 N = 3-4 N = 2<br />
3.3 / 1 Std trench Std trench Std trench Std trench<br />
13 / 4 Std trench Std trench Std trench Std trench<br />
16.5/5 Std trench Std trench Std trench W=2 x ND<br />
20 / 6 Std trench Std trench Std trench W=2 x ND<br />
23 / 7 Std trench Std trench Std trench W=2 x ND<br />
33 / 10 Std trench Std trench W=2 x ND W=3 x ND<br />
36 / 11 Std trench Std trench W=3 x ND W=3 x ND<br />
39 / 12 Std trench Std trench W=3 x ND W=3 x ND<br />
43 / 13 Std trench W=2 x ND W=3 x ND W=3 x ND<br />
46 / 14 Std trench W=3 x ND W=3 x ND W=3 x ND<br />
H<br />
Ft / m<br />
Soil Group Soil Group Soil Group Soil Group<br />
1<br />
s. compact / stiff<br />
2<br />
Loose / medium<br />
3<br />
Soft<br />
4<br />
vloose/vsoft<br />
N>9 N = 5-8 N = 3-4 N = 2<br />
6.6 / 2 Std trench Std trench Std trench Std trench<br />
10 / 3 Std trench Std trench Std trench Std trench<br />
13 / 4 Std trench Std trench Std trench W=2 x ND<br />
16 / 5 Std trench Std trench Std trench W=3 x ND<br />
20 / 6 Std trench Std trench Std trench W=3 x ND<br />
23 / 7 Std trench Std trench W=2 x ND W=3 x ND<br />
26 / 8 Std trench Std trench W=3 x ND W=3 x ND<br />
H<br />
Ft / m<br />
Soil Group Soil Group Soil Group Soil Group<br />
1<br />
s. compact / stiff<br />
2<br />
Loose / medium<br />
3<br />
Soft<br />
4<br />
vloose/vsoft<br />
N>9 N = 5-8 N = 3-4 N = 2<br />
3.3 / 1 Std trench Std trench Std trench Std trench<br />
6.6 / 2 Std trench Std trench Std trench Std trench<br />
10 / 3 Std trench Std trench Std trench W=2 x ND<br />
13 / 4 Std trench Std trench Std trench W=3 x ND<br />
16 / 5 Std trench Std trench Std trench W=3 x ND<br />
20 / 6 Std trench Std trench W=2 x ND W=3 x ND<br />
H<br />
Ft / m<br />
Soil Group Soil Group Soil Group Soil Group<br />
1<br />
s. compact / stiff<br />
2<br />
Loose / medium<br />
3<br />
Soft<br />
4<br />
vloose/vsoft<br />
N>9 N = 5-8 N = 3-4 N = 2<br />
3.3 / 1 Not Recommended Not Recommended Not Recommended Not Recommended<br />
H<br />
Ft / m<br />
Soil Group Soil Group Soil Group Soil Group<br />
1<br />
s. compact / stiff<br />
2<br />
Loose / medium<br />
3<br />
Soft<br />
4<br />
vloose/vsoft<br />
N>9 N = 5-8 N = 3-4 N = 2<br />
3.3 / 1 Not Recommended Not Recommended Not Recommended Not Recommended
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