File Name
Magnetic Settlement
Resource Type
Brochure| Language | Version | Download |
|---|---|---|
| English | SSB0001 |
|
Magnetic Settlement System
RST Instruments Magnetic Settlement Systems are available in 3 main configurations which monitor either heave or settlement in soil and rock.
Overview
RST Instruments Magnetic Settlement Systems are available in three main configurations which monitor either heave or settlement in soil and rock.
MAGNETIC SETTLEMENT SYSTEM WITH FLUSH THREADED PVC PIPE:
Installation as a single-purpose device to monitor settlement/heave only.
MAGNETIC SETTLEMENT SYSTEM WITH INCLINOMETER CASING:
Installed in conjunction with RST Flush-coupled Inclinometer Casing to obtain both vertical and horizontal deformation data from a single installation. If larger amounts of settlement/heave are anticipated, this configuration may also incorporate a Corrugated Sleeving with Settlement Magnetic Rings which will accommodate RST’s Inclinometer Casing of 70 mm (2.75″) and 85 mm (3.34″) OD sizes.
MAGNETIC SETTLEMENT SYSTEM WITH 1.5″ CORRUGATED PIPE:
A more inclusive system which contains pre-installed magnets along a 1.5″ ID corrugated pipe. This corrugated configuration is also more ideal for situations where larger amounts of settlement/heave are anticipated.
All three configurations listed below use an RST Reed Switch Probe to provide a reading in the magnetic zones allocated along the length of the borehole. Installations are typically vertical, however, horizontal applications may be accommodated utilizing installation rods to insert the probe. All are designed to be simple, accurate, and provide long-term reliability at a low cost.
MAGNET SPECIFICATIONS
For use with PVC pipe or inclinometer casing.
| DATUM MAGNETS | SPECIFICATION |
| SSRS00D1 | To fit 1 in. flush threaded PVC pipe. Max OD 5.95cm (2.4 in.). |
| SSRS00D2 | To fit RST 70 mm (2.75 in.) Glue & Snap or Snap Seal inclinometer casing. |
| SSRS00D4 | To fit RST 85 mm (3.34 in.) Glue & Snap or Snap Seal inclinometer casing. |
| SPIDER MAGNETS | SPECIFICATION |
| SSMM100 | Mechanical release spider target for 1″ PVC pipe. |
| SSMM275 | To fit RST 70 mm (2.75 in.) Glue & Snap or Snap Seal inclinometer casing. Max OD 9.92cm (4.0 in.). Borehole size as required. |
| SSMM334 | To fit RST 85 mm (3.34 in.) Glue & Snap or Snap Seal inclinometer casing. Max OD 11.16 cm (4.5 in.). Borehole size as required. |
| PLATE MAGNETS | SPECIFICATION |
| SSRS00P1 | To fit 1 in. flush threaded PVC pipe. Dimensions: 30 x 30 cm (12 x 12 in.) |
| SSRS00P2 | To fit RST 70 mm (2.75 in.) Glue & Snap or Snap Seal inclinometer casing. Dimensions: 30 x 30 cm (12 x 12 in.) |
| SSRS00P3 | To fit RST 85 mm (3.34 in.) Standard or Snap Seal inclinometer casing. Dimensions: 30 x 30 cm (12 x 12 in.) |
| INCLINOMETER CASING: TELESCOPIC SECTION MAGNETS | SPECIFICATION |
| ICGC2TS01 | To fit RST 70 mm (2.75 in.) Glue & Snap casing. Max OD 7.25 cm (2.85 in.) |
| ICSC2TS01 | To fit RST 70 mm (2.75 in.) Snap Seal casing. Max OD 7.25 cm (2.85 in.) |
| ICGC3TS01 | To fit RST 85 mm (3.34 in.) Glue & Snap casing. Max OD 8.89 cm (3.50 in.) |
| ICSC3TS01 | To fit RST 85 mm (3.34 in.) Snap Seal casing. Max OD 8.89 cm (3.50 in.) |
MAGNET + ACCESS PIPES SPECIFICATIONS
For use with 1.5 inch corrugated pipe settlement system.
| MAGNETS | SPECIFICATION |
| SS3210 | Anchor Assembly (includes Datum Target) |
| SS3220 | Magnetic Target Assembmbly |
| SSRS00P2 | Plate Magnet: 30 x 30 cm (12 x 12 in.) |
| SLEEVING AND ACCESS PIPES | SPECIFICATION |
| SS3201 | Corrugated pipe/sleeving 38.1 mm (1.5 in) ID |
| EPA100805 | 25 mm (1.0 in.) PVC Access Pipe x 5 ft. |
| EPA100810 | 25 mm (1.0 in.) PVC Access Pipe x 10 ft. |
ACCESS PIPES SPECIFICATIONS
For use with PVC pipe or inclinometer casing.
| ITEM | SPECIFICATION |
| EPA100805 | 25 mm (1 in.) PVC X 5 ft. |
| EPA100810 | 25 mm (1 in.) PVC X 10 ft. |
| SSTS100 | 1″ Telescopic Section – 10′ to 7′ (3 m to 2 m) (43 mm OD) |
| ICGC210 | 2.75 in. Glue & Snap casing X 10 ft. |
| ICGC205 | 2.75 in. Glue & Snap casing X 5 ft. |
| ICTC205 | 70 mm (2.75 in.) Standard telescopic casing section |
| ICSC305 | 3.34 in. Snap Seal casing X 10 ft. |
| ICSC310 | 3.34 in. Snap Seal casing X 5 ft. |
| ICTC310 | 85 mm (3.34 in.) Snap Seal telescopic casing section |
| SS3001 | Corrugated sleeving 76.2 mm (3.0 in) ID |
READOUT SPECIFICATIONS
| ITEM | SPECIFICATION |
| Resolution | 1 mm / 0.01 ft. |
| Tape | Polyethylene coated (Teflon® coated optional) 10 mm (0.4 in.) flat style. Stainless-steel conductors. |
| Probe | Two reed switches standard. 16 X 200 mm (5/8 in. OD X 8 in. long) |
| Reed switch precision | ±0.03 to 0.3 mm (±0.001 to 0.01 in.) |
| System precision | Vertical installations typically ±3 to 5 mm (±0.1 to 0.2 in.). Vertical installations with micrometer head typically ±0.5mm (±0.02 in.). |
| Battery | Standard 9 V |
Magnetic Settlement Systems are commonly used for:
- Monitoring settlement or heave associated with construction, mining, and tunneling.
- When used around inclinometer casing, deformation in the third axis can be monitored.
- Subsidence monitoring.
- Displacement of retaining walls, piers, and abutments.
- Bottom heave of excavations.
- Relaxations of rock around tunnel openings.
- Foundation settlement monitoring.
- Embankments and fills.
View illustrations on how the Magnetic Settlement Systems are used for tailings dams.
File Name
Corrugated Pipe with Magnetic Targets Inclinometer Settlement System Installation Manual
Resource Type
Manual| Language | Version | Download |
|---|---|---|
| English | SSM0027C |
|
File Name
Magnetic Settlement System Reed Switch Probe Instruction Manual
Resource Type
Manual| Language | Version | Download |
|---|---|---|
| English | WLM0008A |
|
Speak with an Expert
I’m very happy with the quality of the instrumentation and technical support from RST, as always. They worked with us from the initial stages of the project to ensure that we were fully prepared and equipped to use the RSTAR network for the first time. They delivered everything within the tight project time frame to ensure that there were no delays on site, and the submersible tilt meters looked like new even after over twelve months of being submerged in Thames water!
-Richard Lipscombe, BEng (Hons), Director & Principle Consultant - RL Geotechnical Ltd