Posted on 16th March 2019 at 12:37
When you need to work safely at height consideration should be taken of not only where you need to get to at height to do your work, but also of how you are going to get there and the ground conditions where you are working.
Tracked spiders are the most versatile forms of mewps (mobile elevated work platforms) as they can traverse and set-up on many different types of ground environments. The types of terrain that you need to consider are: -
1. Sandy or other types of loose material, such as gravel, soft soil etc
2. Boggy waterlogged ground
4. Ploughed fields
5. Restricted and narrow areas
6. Obstacles in the way
7. Uneven surfaces
8. Internal, delicate floor surfaces
The reason why spiderlifts can overcome these conditions is due to their design. They are light in weight and that weight is spread over the area of their tracks when moving, which reduces their ground pressure loading. The weight (point-loading) is then transferred and spread over a larger area when their outriggers (legs) are set, especially when using additional spreader plates at the ‘feet’.
They say that a picture can save a thousand words, so please find below some examples of spiders overcoming the environments mentioned above.