| No |
Title |
Item |
Standard Properties |
Comments |
| 1 |
Purpose of Lining |
|
1.
Restore
Pipeline strength
2.
Stop
leakage
3.
Improve
flow capacity
4.
Improve
corrosion resistance
5.
Prevent
tree roots from entering the pipeline
6.
Re-establish
pipeline grade
7.
Improve resistance to earthquake damage |
Grade can be re- established for pipes over 800mm in
diameter |
| 2 |
Suitability of SPR Method |
Pipeline Function |
Sewer, agricultural, drainage |
|
| Shape of Pipe |
Round, rectangular, horse-shoe, oval etc |
|
| Pipeline length |
Host
Pipe Shape |
Size (mm) |
Maximum
Length (m) |
|
| Round
|
900
1000 to 1500
1650 to 3000 |
200
300
500 |
Installable length can be extended if necessary. |
| Rectangular |
900 to 1200
1300 to 2100
2200 to 3000 |
200
300
500 |
|
| Horse-shoe |
900 to 1200
1300 to 2100
2200 to 3000 |
200
300
500 |
|
|
Degree of Deterioration |
Condition of Host |
Yes or No
for SPR |
|
| Breakage of Pipe |
・Collapse
・Partially missing
・Cracked Entirely |
No
Yes
Yes |
|
| Cracking |
･Horizontal and vertical |
Yes |
|
| Loosen
Joint |
･Gap or joint apart |
Yes |
Depends on degree of movement.
May need partial repair |
| Offset
・ <20ｍｍ
・ <50ｍｍ
・ <100ｍｍ
・ <150ｍｍ |
|
Host <500mm diameter
Host 600 to 1200mm
Host 1350 to 1800mm
Host > 2000mm |
| Bend Angle |
Less than 5°(Pushing)
Less than 10°(Self Running)
Less than 3°(Out-of-Round) |
Yes
Yes
Yes |
|
| Meandering |
|
Yes |
Depending on site conditions |
| Condition of Host |
|
Yes or No for SPR |
|
| Infiltration |
・Pressurized (spouting)
・Non Pressurized
|
Need separate work to stop
water.
Yes |
Need separate work to stop
water. |
| Protruding Mortar |
|
Needs pretreatment |
|
| Protruding Laterals |
|
Needs pretreatment |
|
| Tree Roots in Line |
|
Needs pretreatment |
|
| Corrosion of Host |
Steel bars exposed |
Yes |
Exposed bars shall be cut
by robot |
|
3 |
Working Conditions |
Minimum Work Space |
One lane of traffic.
Winging: about 3 meters wide x 20 meters long
Grouting: about 3 meters wide x 36 meters long |
|
|
Safety Devices |
・Safety harness
・Gas detector
・Forced air ventilation
・Lighting |
|
|
Working Temperature |
Outside temperature: -5 to 40°C |
|
|
Installation time |
Shape of Pipe |
Host Pipe Diameter (mm) |
Days per 100m |
|
|
Round |
900 to 1500
1650 to 2200
2400 to 3000 |
14 to 18
16 to 17
22 to 27 |
Self Running
Self Running
Self Running |
|
Square |
900 to 1200
1300 to 2100
2200 to 3000 |
16 to 17
18 to 21
25 to 29 |
Pretreatment including restoration of invert in camber and lateral reconnection no included. |
|
Horse-shoe |
900 to 1200
1300 to 2100
2200 to 3000 |
18
18 to 21
24 to 28 |
|
|
Flow in line |
Liner can be wound while pipeline is in service. Flow level should not be more than about 30% of pipe diameter and flow velocity less than 10m/s |
|
|
Winding Direction |
From upstream to downstream |
Bypassing may be necessary to reverse direction |
