C148 Soil Prebored Pressuremeter Testing in-situ
C148 Soil Prebored Pressuremeter Testing in-situ
Test Description:
The pressuremeter test is an in-situ testing method used to achieve a quick measure of the in-situ stress-strain relationship of the soil. In principle, the pressuremeter test is performed by applying pressure to the sidewalls of a borehole and observing the corresponding deformation.
For the test readings (volume variation based on controlled pressure), a stress-strain curve can be obtained, in the case of plane deformation, which yields:
-the Menard pressuremeter modulus
-the creep pressure
-the Menard limit pressure
| Item | Parameter | Model | |||||
| PY-3 | PY-4 | PY-5 | |||||
| 1 | Pressuremeter | Nade Nonimal dia. | ø50mm | ||||
| Dia.with metal shield | ø55mm | ||||||
|
Measure chamber length |
250mm | ||||||
|
Pressuremeter length |
800mm | ||||||
| 2 |
Measuring precision |
Min.reading of pressure gauge |
0.005Mpa | ||||
|
Volume meter effective range |
400mm | ||||||
|
Comprehensive error |
≤±1% | ||||||
| Measurements | Electrical measurement and visual | ||||||
| 3 | Others | Max.Pressure | 2.5Mpa | 4.0Mpa | 5.5Mpa | ||
| Size | 830×360×220mm | ||||||
| Weight | 28kg | ||||||
| Range |
Clay, silt and other formations |
Hard clay, silt, sand and other formations |
Clay, silt, sand, weathered rock, soft rock strata |
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