Anchoring Systems
Anchoring Systems - Down. Right. Solid.
Xrosswater Ltd Can also offer a truly tried and tested anchoring system that can be utilised in existing, new, wet or dry locations.
The following refers:
• The depth of an anchors placement related to the soil classification.
• The angle of the load
• The installation of the anchors and the related cost.
• The appropriate chain or cable strength.
• The management or appropriate time to adjust with by trained people.
• The force or load that the anchors should be expected to uphold to.
The anchor system that we support the use of is the helical anchor. These are available in wide range of configurations and are interchangeable relating to strength, length, number of helical bearing plates, helical diameters, and optional installation techniques.
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Soil Classification Data
Table 1-2 |
| CLASS |
COMMON SOIL-TYPE DESCRIPTION |
GEOLOGICAL SOIL CLASSIFICATION |
PROBE VALUES in/lbs (nm) |
Typical Blow Count N per ASTM D1586 |
| 0 |
Sound hard rock, unweathered |
Granite, Basalt, Massive Limestone |
N.A. |
N.A. |
| 1 |
Very dense and/or cemented sands; coarse gravel and cobbles |
Callche, (Nitrate-bearing bravel/rock) |
750-1600
(85-181) |
60-100+ |
| 2 |
Dense fine sands; very hard silts and clays (may be preloaded) |
Basal till; boulder clay; Callche; weatherd laminated rock |
600-750
(68-85) |
45-60 |
| 3 |
Dense sands and gravel; hard silts and clays |
Glacial till; weathered shales, schist, gneiss and siltstone |
500-600
(56-68) |
35-50 |
| 4 |
Medium dense sand and gravel; very stiff to hard silts and clays |
Glacial till; hardpan; marts |
400-500
(45-56) |
24-40 |
| 5 |
Medium dense coarse sands and sandy gravels; stiff to very stiff silts and clays |
Saproites, resitual soils |
300-400
(34-45) |
14-25 |
| 6 |
Loose to medium dense fine to coarse sands to stiff clays and silts |
Dense Hydraullic fill; compacted fill; residual soils |
200-300
(23-34) |
7-14 |
| **7 |
Loose fine sands: Alluvium; loess; medium- stiff and varied clays; fill |
Flood plain soils; lake clays; adobe; gumbo, fill |
100-200
(11-23) |
4-8 |
| **8 |
Peat, Organic Silts, inundated silts, fly ash very loose sands, very soft to soft clays |
Flood plain soils, lake clays; adobe; gumbo, fill |
less than 100
(0-11) |
0-5 |
Class 1 soils are difficult to probe consistently and the ASTM blow count may be of questionable value.
* Probe values are based on using Chance Soil Test Probe, catalog number C309-0032
** It is advisable to install anchors deep enough, by the use of
extensions, to penetrate a Class 5 or 6, underlying the Class 7 or 8
Solids. |
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