Crawler Crane GBP Analyzer
Ground Bearing Pressure & Stability Estimator
Above is the crawler crane tracking pressure estimator, and support the industries in calculating their ground health.
Soil Bearing Capacity (GBC) Reference Table
Use this table to compare your calculator results with safe soil limits.
| Soil Type | Typical GBC (kN/m²) | Safety Requirement |
|---|---|---|
| Soft Clay / Silt | 20 – 50 | Steel Mats Mandatory |
| Loose Sand | 50 – 100 | Spreader Plates Needed |
| Medium Dense Sand | 100 – 200 | Check Compaction |
| Compact Gravel | 200 – 400 | Generally Safe |
Specialist’s Safety Insight: Calculating Ground Bearing Pressure (GBP) isn’t about the weight of crane but crawler crane, the maximu pressure happen when boom is over the corner of the tracks during a slew. Always ensure track pads conditions, and bent pad pressure into hot spot leading to ground failure.
Crawler Crane GBP: Frequently Asked Questions
Q: How do you calculate ground bearing pressure for a crawler crane?
Ans: It is calculated by taking the total weight of the crawler crane, counterweights, and the load, then dividing it by the total track contact area. Note that pressure significantly increases under the boom side during lifting operations.
Q: What is the permissible ground pressure for a 100-ton crane?
Ans: Permissible pressure depends entirely on the soil type. For example, solid rock can handle over 600 kN/m², whereas soft clay may handle as little as 25 kN/m², requiring heavy-duty spreader mats.
