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Allu Launches Stabilization System for Earthmoving Jobs

Wed June 18, 2008 - National Edition
Construction Equipment Guide

Allu Group has developed the new stabilization system for earthmoving contractors. The Allu stabilization system also gives the opportunity for small contractors to step into the mass stabilization business that was before accessible only to bigger contractors with self-developed stabilization machines.

Combination of Three Units

Allu PM Power Mix, which is a hydraulic accessory for excavators, converts the excavator to a mobile and effective mixer unit.

Allu PF Pressure Feeder injects the binding agent beneath the ground, directly to the middle of the mixing drums by using a feeding pipe and compressed air. The unit is mounted on a tracked chassis and is remote controlled allowing the unit to follow behind the lead excavator to the site.

The third part is the Allu DAC Data Acquisition system, which measures, controls and reports the feeding operation. Allu DAC enables control of the whole stabilization system, making the system user friendly, and provides the facility to transfer data onto other computers.

The working method is referred to as Mass Stabilization. It can be a quick and cost effective solution compared to the traditional method of excavation and fill, according to the manufacturer.

Different kinds of clay, peat, sludge, and soft soil can be transformed into solid layers using the stabilization method. The Allu Stabilization System can enable access even if the ground is a swamp where it is not even possible to walk. The stabilization method also can be used in treatment of contaminated lands, by encapsulating contaminants within the ground, and prevent leaching to the surrounding areas.

Railway Construction on Peat

One of the recent contracts where the Allu Stabilization System has been used is a high speed railway line construction site, on soft peat in southern Finland.

The contractor, Hyvinkään Tieluiska Oy, used the Allu Stabilization System to strengthen the soft peat creating a working platform for a 70T piling rig. The binder agent provided by the Allu PF was mixed using the Allu PM (in-situ) to a depth of 16 ft. (5 m).

Previously it would have been necessary to excavate the entire area and fill the void with stone. This can create all sorts of problems for the contractor, finding a suitable area to deposit the excavated material and sourcing the stone as fill. Another way of solving this problem is to build a bridge and sometimes that is almost impossible because of the location or fragile nature.

The Future of Allu Stabilization System

The combination of three units makes the Allu Stabilization System a solution for soil reinforcement. By launching the Stabilization System, Allu will open new business opportunities for earthmoving contractors. The new system can benefit contractors by generating savings for both the contractor and the end client, according to the manufacturer.

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