The Dynamic Compaction Company, Inc.

HIGH ENERGY COMPACTION

The Process of Dynamic Compaction is achieved by continuously compacting the building pad subgrade with a heavy weight (pounder) dropped from specified drop heights.

The certified pounders, typically 8 to 16 tons, are hoisted and dropped utilizing a crawler or truck crane across a predetermined grid pattern.

The grid plan and specifications are provided by the geotechnical engineer prior to the bid process.

LOW ENERGY COMPACTION

Since site conditions may vary some surfaces may require an additional “Ironing Pass”.

This optional service augments the grading process by compacting the top 3 - 4 feet and creating a hard smooth pad. Ironing is done with a flat, 8 X 8 square, 10 ton pounder weight.

ENGINEERING & DESIGN/BUILD SERVICES

The grid plan is created by a licensed geotechnical engineering firm and provided prior to selecting the proper crane, pounding weight, drop height, grid pattern, number of drops per location and number of passes.

The pounder is attached to the crane via a pendant/sling and specified load cable capable of continuously hoisting and dropping the load from 35 to 90 feet depending on engineering specifications.

Dynamic compaction improves the geotechnical properties of the site by enforcing consolidation of the existing soils.

The exact specifications will depend on the depth of soft materials and the composition of the fill or existing soils.

Thorough inspection and testing will determine the exact number of drops per location and number of passes required.

GRADING & BACKFILLING

As a vital part of the dynamic compaction process, craters created by the pounder must be graded and backfilled at the end of each workday.

To avoid costly mistakes, grading requires an experienced firm that understands the objectives of the dynamic compaction process.

If not completed properly, dynamic compaction work can be affected by rain or snow resulting in change orders and work stoppage.

Reduce your worry and liability by hiring DCC Inc. for all grading and backfill work associated with the process of dynamic compaction.

WICK DRAIN INSTALLATION

Many redevelopment and reclamation projects require installation of wick drains to increase settlement of soft silt and clay.

Correctly installed wick drains can significantly reduce the consolidation time from several years to a few months by allowing the pore water to flow vertically through the installed wicks.

DCC Inc. provides complete wick drain installation services from concept to completion.