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| Home | Products | Road Construction | Rapid Impact Compactors
Rapid Impact Compactors (RIC)
Rapid Impact Compaction (RIC) is a ground improvement technique that can densify shallow, loose and granular soils. The soil treated by this method will increase the density, friction angle and overall stiffness, thus increasing the bearing capacity, minimizing the settlement and providing uniform support for the foundation. The rapid impact compactor was originally developed by BSP and the British military in the early 1990s as a means to quickly repair damaged runway. Dynamic energy is obtained by dropping a 9 to 16 ton (depending on size) drop hammer from a controlled height onto a compaction foot. The loose granular material shall be compacted to a depth of 7 to 9 meters below the surface by repeatedly dropping the hydraulic acceleration weight from 1.2 to 1.5 meters height on the foot in contact with the soil.
Since the feet of the RIC machine are in contact with the ground, energy is safely and effectively transmitted to the ground. Compaction parameters are automatically controlled and monitored by operation cab through on-board data acquisition system.
In addition to improving the bearing capacity of soft soil, minimizing settlement, and providing even support for the foundation, rapid impact compaction has another advantage of its flexibility and relatively small equipment, enabling it to work in narrow areas.
Sinoway can offer the RIC attachment, which the ram weight are from 3 ton to 16 ton, mounted both on wheel loaders and crawler excavators.
Gallery
ModelSWRD36 SWRD42 SWRD60 SWRD85 SWRD110 SWRD180 SWRD240
Dropweight Mass (Kg) 3000 3500 5000 7000 9000 12000 16000
Hammer Energy (kN.m) 36 42 60 84 108 180 240
Max Equivalent Stroke(mm) 1200 1200 1200 1200 1200 1500 1500
Blow Rate 30~80 30~80 40~120 40~120 40~120 35~120 35~120
Operating Pressure (Bar) 160 200 220 250 280 250 280
Hydraulic Flow Required (L/min.) 120~280 120~280 140~360 220~250 220~250 380~400 380~400
Foot Diameter(mm) 1000 1000 1500 1500 1500 1600 2000
Excavator Basic Size(ton) 20-30 20-30 30-35 36-42 40-45 65-75 75-95
Typ. Depth of Influence (m) 1.5-3 1.5-3 2-4 3-5 3-5 4-7 5-8