| Customization: | Available |
|---|---|
| After-sales Service: | Supply |
| Warranty: | 1 Year |
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Shear wave velocity of rock and soil
The RSM-SWS surface wave tester is mainly used to measure the shear wave velocity of rock and soil. Shear wave velocity is one of the important dynamic parameters of rock and soil. When the instrument excites and receives surface waves on the ground or in a borehole, the shear wave velocity can be calculated by analyzing the propagation time and propagation distance of the surface wave in the rock and soil. For example, in the site survey of a construction project, accurate shear wave velocity data of rock and soil is crucial for evaluating the seismic response characteristics of the site. Different types of rock and soil (such as clay, sand, rock, etc.) have different shear wave velocity ranges. Through measurement, different strata can be distinguished, providing key parameters for seismic design.
Strata layered structure
The tester can effectively detect the layered structure of the strata. The propagation speed of surface waves in different strata is different. When encountering a strata interface, the propagation characteristics of the surface waves (such as velocity, amplitude, etc.) will change. By detecting and analyzing these changes, the interface position of the strata and the thickness of each layer can be determined. In geological surveys, it is very helpful to understand the distribution of strata within a depth range of tens or even hundreds of meters underground. For example, in the geological exploration before highway construction, the distribution of different underground soil layers (such as soft soil layer and hard soil layer) can be clearly divided so as to reasonably plan the roadbed design of the highway.
Mechanical parameters such as elastic modulus of rock and soil
Based on the measured shear wave velocity and other data, the elastic modulus and other mechanical parameters of rock and soil can be further inferred. The elastic modulus reflects the ability of rock and soil to resist elastic deformation. In geotechnical engineering, these parameters are very important for evaluating the bearing capacity and deformation characteristics of the foundation. For example, in the detection of foundation treatment effect, by comparing the changes in the elastic modulus of rock and soil before and after treatment, it is possible to intuitively understand whether the foundation treatment method (such as compaction, grouting, etc.) has effectively improved the mechanical properties of the foundation.
Anisotropic characteristics of rock and soil
The RSM-SWS surface wave tester can detect the anisotropy of rock and soil. Due to factors such as the sedimentation process and stress history of the rock and soil, its physical properties (such as wave velocity) in different directions may be different. The instrument can study the anisotropic characteristics of rock and soil by exciting and receiving surface waves in different directions. When studying complex geological structures (such as rock and soil near folds and fault zones), anisotropy detection helps to more fully understand the properties of the rock and soil and provide more accurate information for engineering design and geological research.
| GD-SWS | |
| Control mode | Low-power embedded system, main frequency: 1GHz; Memory: 512M |
| Display mode | Displayed via a notebook PC. |
| Operation mode | Notebook PC operation |
| Operation system | Suitable for WindowsXP-Win8 |
| Communication mode | Wired |
| Channel number | 24 channels |
| Triggering mode | External and automatic triggering |
| Sampling interval | 10-16000μs, adjustable |
| Sampling length | 0.5-16k, adjustable |
| Dynamic range | ≥120dB |
| Analog filtering | Multi-channel (optional) |
| Bandwidth | 0.5-4000Hz |
| Phase congruency | Relative absolute error≤0.5ms |
| Digital filtering | Arbitrary input |
| A/D conversion accuracy | 24 bits |
| Power supply mode | Built-in lithium battery, ≥8h |
| Operating temperature | -20 to +55ºC |
| Forward amplifier gain | 12dB-72dB, multichannel (optional) |
| Dimensions | 350×300×150mm |
| Weight | 3.5kg (lithium batteries included) |
| Serial Number | Name | Number | Specification & Model |
| 1 | Surface wave tester | 1 | RSM-SWS |
| 2 | Surface wave cable | 2 | 2m interchannel |
| 3 | Surface wave point speed sensor | 26 | 4Hz |
| 4 | Point trigger velocimeter | 2 | |
| 5 | Surface wave sensor extension cord | 1 | Three-core, 50m |
| 6 | Surface wave communication cable | 2 | 2m |
| 7 | Surface wave analysis software | 1 | XP12A(01) |
| 8 | Yellow trolley case | 1 | Accessories box |
| 9 | Yellow suitcase | 1 | Main box |
| 10 | Charger | 1 | 12.6V 3A |
| 11 | U disk | 1 |
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