Used to target poor soil zones anywhere in the soil profile in order to increase pier capacities beyond what a regular RAP can achieve.
Rigid Inclusions Precision Grouted RAPs
Precision grouted Rammed Aggregate Pier® (RAPs) Systems are used to target poor soil zones anywhere in the soil profile in order to increase pier capacities beyond what a regular RAP can achieve. A specially equipped Geopier Impact mandrel is used in the installation and placed on the survey pin location with the stone valve in closed position. Pressurized grout is applied at the mandrel tip when the mandrel tip is at the correct elevation where poorer soils are encountered at any level in the soil profile. In all other aspects, precision grouted RAPs are the same as grouted RAPs.
How Can We Do More with GeoSolv Rigid Inclusions than Other Rigid Inclusions?
GeoSolv’s Rigid Inclusion Systems always involve sizeable vertical crowd force, vertical ramming energy and significant lateral stress increase. This action, along with the vertical ramming and heavy crowd pressure with lateral cavity expansion, is unique to GeoSolv and creates unsurpassed system performance. These three factors are essential, as they result in a more highly engineered system with improved performance over other rigid inclusion approaches.
How Do I Know Which Rigid Inclusion to Use for My Project?
We are here to find the right solution to your soil challenges. Please contact us for a free review of your project details and an obligation-free proposal or feasibility study.
Precision Grouted Rammed Aggregate Pier elements are built similarly to Geopier Impact and Grouted Rammed Aggregate Pier elements with a grout mixture added to provide high capacity Geopier elements in highly organic or very soft/loose soils. In contrast to the grouted RAP elements, the grout is added only where needed, such as through a very soft clay or peat zone. This system allows for standard spread footing and slab-on-grade design and provides for better capacity in poorer soils.
Treat up to 16m depths with 400-750mm diameter elements for high loads in loose sand, soft silt and clay, fill, topsoils, and organics, with a combination of a grouted RAP element targeted to the very poor zone and a regular Rammed Aggregate Pier element elsewhere.