The position of the crawler crane station and the forward walking section of the crawler crane should be leveled and compacted, and the inspection and compression test should be carried out. The subgrade bearing capacity is required to be no less than 25t/m2.
Track crane station position and lifting forward walking section of the ground should be flat and solid, and carry out inspection and pressure test, requiring the road base tolerance is not less than 25t/m2.
The ground of crawler crane station position and the road section of lifting forward shall be flat and compacted, and inspection and compression test shall be carried out. The subgrade bearing capacity is required to be no less than 25t / m2.