HT6 High Clearance Arches
Ground Support Systems High Clearance Arches can be combined with any of the Heavy Duty 3.6m, 4.3m, 6.1m or 7.3m long shoring boxes, giving 2300mm of clearance beneath the arch with internal dimensions from 1830mm to 6100mm of clearance between the panels. These are ideal for laying large diameter pipes, multiple pipes, box culverts, boring pits, pipe caps, installing GPT’S etc.
Standard features
- 2300mm clearance beneath arch
- Minimum width internal 1830mm
- Maximum width internal 6100mm
- Simple design for easy assembly and installation.
- Professional Engineer design and certification
Conforms to Australian Standard AS 4744.1-2000
| MODEL & DESCRIPTION | Weight | Pipe Clearance | Maximum lateral earth pressure | Maximum Allowable Depth of Cut (metre) | |||
|---|---|---|---|---|---|---|---|
| Kg. | mm. | kPa. | B Soil | C-60 Soil | C-80 Soil | ||
| HIGH CLEARANCE SEE BELOW FOR EXTENSIONS | Min.Internal—1830 Max. Internal—6100 | 998.8 | 2300 | 75 | 7.9 | 6.0 | 4.4 |
| MODEL & DESCRIPTION | Weight | |
|---|---|---|
| Kg. | ||
| ARCH-SP14-EXT1(1’Extension) | 305 | 105 |
| ARCH-SP14-EXT2(2’Extension) | 610 | 136 |
| ARCH-SP14-EXT4(4’Extension) | 1220 | 168 |
| ARCH-SP14-EXT6(6’Extension) | 1830 | 232 |
| ARCH-SP14-EXT8(8’Extension) | 2440 | 295 |
| ARCH-SP14-EXT14(14’Extension) | 4270 | 486 |
| MODEL & DESCRIPTION | Weight | Pipe Clearance | Max depth in metres based on soil type examples | |||
|---|---|---|---|---|---|---|
| Size of Shoring Panels | Range of Arch | Kg. | mm. | B Soil | C-60 Soil | C-80 Soil |
|
XLD-812/ XLD-612 |
Min. internal—1830 |
1060 | 2300 | 12.4 | 9.4 | 7.4 |
|
HT6-814/HT6-614 |
Min. internal—1830 |
1060 | 2300 | 10.5 | 8.1 | 6.4 |
|
HT6-820/HT6-620 |
Min. internal—1830 |
1060 | 2300 | 7.7 | 6.1 | 4.7 |
|
HT6-824/HT6-624 |
Min. internal—1830 |
1060 | 2300 | 6.6 | 5.2 | 4.2 |
| SOIL TYPE EXAMPLES | ||
|---|---|---|
| GOOD SOIL (type B) | AVERAGE SOIL (type—C-60) | POOR SOIL (type—C-80) |
| Medium cohesive to granular soil. 2.155 kPa per metre of depth. | Soft cohesive to submerged soil. 2.873 kPa per metre of depth. | Soft cohesive to submerged soil. 3.830 kPa per metre of depth. |
| DESCRIPTION | ||
| *Clay, with unconfined compressive strength greater than 48kn/m2 but less than 144kn/m2. * Cohesionless gravel, silt, silt loam or sandy loam. |
*Soft cohesive soil unconfined compressive strength less than 48kn/m2. * Gravel, sand and loamy sand; Submerged soil or fractured rock that is not stable. |
* Soft cohesive soil unconfined compressive strength less than 48kn/m2. * Gravel, sand and loamy sand; Submerged soil or fractured rock that is not stable. |
*Depth & kPa ratings are for lateral earth pressures only and do not take any surcharges into account.
*Soil & site conditions should be assessed by a certified person prior to installation.
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