Rapid impact compaction hydraulic drop hammer RIC series

RIC is a technique allied to Dynamic Compaction that can be used to increase the bearing capacity of soils through controlled impact. RIC Main Image The treatment is effective in the top layers typically up to 6m depth, though improvements up to 9m have been seen in some conditions. A drop weight of 9 to 16 tonnes (depending on size) is dropped onto a special foot assembly 40-60 times a minute. The foot remains in contact with the ground at all times. Read More The method for efficiently covering the ground varies from country to country. A common pattern used to cover uses a track in three passes. This has the effect of achieving the best depth of influence. The first pass effecting the ground to a deeper level than the latter. Most granular fills and some silts are compactable, the best results being achieved where the fill is well-graded particle size. An area of 800m²-2500m² can be covered in an average day (depending on the ‘blow-perposition’ setting.) This also allows time for routine maintenance and rotation of the special dolley pads located in the foot assembly which transfers the force of the blow through to the ground. A monitor unit is used to record work done. Target criteria settings are adjusted for final set, depth and blow counts. The driver then compacts until one of those criteria is reached before moving the machine on. A visual representation of the data is seen in the cab and recorded by the on-board monitor. A GPS receiver option is available and GPS coordinates may be added to the compaction points. This allows the data logged to be precisely allocated to real position. Data presentations to the client can then be greatly enhanced.