*myarchiexpo

STONE COLUMNS

Product catalog summary

Introduction
This document introduces a new patented stone columns ground improvement system designed to expand foundation possibilities in areas where traditional methods were unsuitable due to vibrations and environmental concerns.

Technical Specifications
The system utilizes a hybrid drilling assembly that penetrates hard layers without the need for predrilling, reducing vibrations and mess. It is compatible with conventional rotary piling rigs, making it versatile and cost-effective. The equipment specifications include:

Tool diameter: 480-620 mm
Final column diameter: 600-850 mm
Max depth: 11-13.5 m
Torque of rotary head: 175-210 kNm
Diesel engine power: 194-239 kW
Weight: ~43,000-64,000 kg

System Advantages
The system offers several benefits:

Vibration-free operation suitable for sensitive sites
Reduced power and fuel requirements
Fast setup with minimal equipment
No high-pressure water or air injection needed
Ability to introduce binders for rigid inclusions
Proven effectiveness across various soil types

Working Phases
The process involves three main phases:

Drilling and compacting
Extraction and stone feeding
Final stone column formation

This method ensures complete column formation without voids, preventing contamination.

Conclusion
The new stone column system is recognized by international geotechnical engineering design companies and offers a reliable, efficient, and environmentally friendly solution for ground improvement.

Catalog excerpts

STONE COLUMNS NEW PATENTED STONE COLUMNS GROUND IMPROVEMENT SYSTEM

Open the catalog to page 1

NEW PATENTED STONE COLUMNS GROUND IMPROVEMENT SYSTEM MAIN COMPONENTS EPICYLIC GEARBOX FOR INNER FEED ASSEMBLY ROTARY HEAD (DRIVES OUTER DRILLING ASSEMBLY) PATENTED TECHNOLOGY The new ground improvement method is > vibration free so it can be used immediately next to sensitive sites or neighbouring buildings > Less power required > Only two plant items required STONE HOPPER No high pressure water or air injection required therefore less mess OUTER DRILLING ASSEMBLY > Bottom feed – can be used in collapsing soils Binder can be introduced to provide rigid > inclusions in the soil – no expensive...

Open the catalog to page 2

Tool diameter* Final column diameter* Torque of rotary head Diesel engine - power Weight of equipment * Subject to ground conditions WORKING PHASES Method builds complete columns at all times, so there is no-void space introduction to allow column contamination at any time, unlike methods where a plunging motion is used. Fuel and Cost Savings on traditional stone column systems. No additional power packs are required, only one rig to perform the job. Can be attached to a conventional rotary piling rig, thus a truly multi-purpose machine that can be converted back to other techniques is possible....

Open the catalog to page 3

Via A. Malignani, 1 33074 Fontanafredda - Pordenone (Italy) [email protected] www.casagrandegroup.com All data contained in this brochure are indicative and do not take power losses into account. All data can be changed without notice. Tutti i dati riportati su questo catalogo sono indicativi e non considerano perdite di carico. Tali dati possono variare senza preavviso. PRESTAMPA E FOTOLITO VISUAL STUDIO · STAMPA TIPOGRAFIA SARTOR · 500.03.2016

Open the catalog to page 4

STONE COLUMNS

STONE COLUMNS

Catalog excerpts

All CASAGRANDE - Foundation Division catalogs and technical brochures