Refilling may consist of different materials, different thickness and different pressure levels, and the fact that the surface looks hard does not mean that it can safely withstand a leg load. The crane legs should be located before returning to the filling area and should be identified for backfilling, time, materials, compacted records and underground structures, with particular attention to old trenches, base pit backfilling, new and old floor boundary and the perimeter of well rooms. In the absence of sufficient information, the project should be further investigated by a competent person and should not replace the identification of an unknown foundation with a large pad.
The suspension programme requires the use of the most adversely configured leg reaction and compares it with the ground-based carrying capacity approved at the site. The size, thickness and condensity of the leg cushion shall be met at the same time, and the surface under the mat shall be continuously supported and the foot of the leg shall be kept in the middle as far as possible. If a larger distribution system is needed, a designed beam or assembly structure should be used; random stacking of plates, bricks and short wood of different sizes may result in bias, slippage or local pressure.
Magnificent legs of cranes at the construction site to be dispersed with a large-sized leg cushion (input material for the Genesis Network)
The equipment should be prepared in such a way as to level, drain and isolate the traffic around it and avoid disturbance by other vehicles near their legs. The equipment was evened according to the manufacturer ' s procedures and the legs were extended and reconfigured in accordance with the suspension plan. Close to the backfilling of borders, trenches or underground pipelines, it is also necessary to check whether payload proliferation affects adjacent structures. The mattresses could not be placed over empty space, nor could they fall in part on the soil in its original form, and in part on soft backfill without assessing the differences.
Observe the sinking of the mats, the verticality of the legs, the cracks on the surface and the drumming of the earth after the start of operations. The project may set down a deposition baseline and suspend the inspection at critical turning points. Rainfall, pumping water, freezing or nearby excavations change backfilling, and these changes should be reassessed. If continuous deposition or equipment is found to be non-balanced, the operation and unloading will be suspended under the suspension procedure, and the pads cannot be temporarily adjusted in a loading state.
Maximum retroactivity of legs, ground-based permitted pressure, foot size of legs, temperature and handling limits are provided in communication with suppliers to select polymer stubs; backfilling information and underground facility maps are provided in parallel with engineering teams. Product selection and ground-based approval are two different tasks, and only when they are completed will the support of the hanger on the backfill area have a verifiable safety basis.
Need for further evaluation of the actual project?
Applications, sizes, quantities, site photographs or drawings and delivery destinations are sent, on which we can identify more suitable products and processing programmes.
