Chongqing Gold Mechanical & Electrical Equipment Co.,Ltd
| Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Supply Ability | 1 set per 5 days |
| Delivery Time | 5-8 work days |
| Packaging Details | wooden case |
| Use | Nodal SeismographTriaxial Broadband Seismic Recorder Seismic Node |
| power | Electronic |
| Bluetooth QC | Available |
| Waterproof | IP68 |
| Operating temperature | -40℃ ~ +70℃ |
| ADC resolution | 24 bits |
| Brand Name | GOLD |
| Model Number | GD-3C |
| Certification | CE, ISO |
| Place of Origin | chongqing,China |
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Product Specification
| Payment Terms | L/C,D/A,D/P,T/T,Western Union | Supply Ability | 1 set per 5 days |
| Delivery Time | 5-8 work days | Packaging Details | wooden case |
| Use | Nodal SeismographTriaxial Broadband Seismic Recorder Seismic Node | power | Electronic |
| Bluetooth QC | Available | Waterproof | IP68 |
| Operating temperature | -40℃ ~ +70℃ | ADC resolution | 24 bits |
| Brand Name | GOLD | Model Number | GD-3C |
| Certification | CE, ISO | Place of Origin | chongqing,China |
Construction projects fail or succeed based on what lies beneath the surface. The GD-3C Nodal Seismometer serves as a construction quality guardian, providing non-destructive, high-resolution imaging of soil and rock conditions before foundations are poured, tunnels are bored, or embankments are built. By delivering quantitative, verifiable data about subsurface stiffness, layering, and anomalies, it enables engineers to validate designs, identify hazards, and avoid costly change orders.
The most critical parameter for seismic site response and foundation settlement is shear wave velocity (Vs). Traditional methods—downhole and crosshole testing—provide excellent data but at high cost and only at sparse points. The GD-3C enables surface wave methods (MASW, ReMi) that deliver continuous Vs profiles along entire alignments. Deploying a linear array of nodes along a proposed building footprint or transportation corridor, geotechnical engineers can generate high-resolution Vs30 and Vs100 maps that reveal soft zones, stiff layers, and lateral variations. This data directly informs shallow foundation design, pile depth requirements, and seismic site class assignments, eliminating guesswork and reducing contingency factors.
Voids, boulders, buried channels, and old foundations are unwelcome surprises that derail construction schedules and budgets. The GD-3C, used in refraction microtremor (ReMi) or multichannel analysis, can image these features with meter-scale resolution before excavation begins. A void might appear as a low-velocity anomaly; a large boulder as a high-velocity lens. Identifying these features in the design phase allows engineers to relocate foundations, adjust boring plans, or pre-condition the ground, avoiding the costly delays and claims that arise when excavators hit the unexpected.
| Parameter | Geotechnical Site Investigation Standard | Engineering Benefit |
|---|---|---|
| Depth of Investigation | 30-50 meters for typical soil profiles | Covers the active zone for most shallow foundations |
| Vertical Resolution | 1-2 meters in upper 30 meters | Resolves thin soft layers that control settlement |
| Lateral Resolution | 5-10 meters with typical receiver spacing | Maps lateral variations in foundation conditions |
| Vs Accuracy | ±5% compared to downhole methods | Provides confidence for design without over-conservatism |
| Deployment Speed | 1 km of linear profile per hour | Enables full site characterization in days, not weeks |
| Immediate Feedback | Onboard processing shows Vs profile in field | Allows survey adjustments and target investigation on the spot |
Company Details
Business Type:
Manufacturer
Employee Number:
60~80
Ecer Certification：
Verified Supplier
Chongqing Gold Mechanical Electrical Equipment Co. Ltd. has been actively involved in the design, development, and manufacturing of geophysical exploration equipment for over four decades. Our expertise encompasses various techniques used to capture images and map subsurface features and structures ... Chongqing Gold Mechanical Electrical Equipment Co. Ltd. has been actively involved in the design, development, and manufacturing of geophysical exploration equipment for over four decades. Our expertise encompasses various techniques used to capture images and map subsurface features and structures ...
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