Which factors determine the ground condition for crane operation?

The ground condition for crane operation is primarily influenced by slope, compaction, and firmness. These factors are crucial because they directly affect the stability and safety of the crane during operation.

Slope refers to the angle of the ground surface. If the slope is too steep, it can create instability for the crane, increasing the risk of tip-overs or losing load control. Compaction involves the density of the ground; well-compacted ground provides a stable base for the crane, while loose or poorly compacted soil may lead to settling or sinking, compromising the crane’s ability to operate safely. Firmness indicates how much the ground will yield under the weight of the crane. A firm surface supports the crane's weight effectively, while soft or muddy ground can lead to unsafe operating conditions.

While temperature, humidity, soil type, and environmental regulations play important roles in the overall operational environment, they do not directly influence the immediate ground conditions under the crane. Similarly, accessibility and visibility are essential for operational safety but do not determine the foundational ground conditions necessary for stable crane operation. Thus, the factors of slope, compaction, and firmness are critical in ensuring a safe and effective working environment for cranes.