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TECH NOTE

ROCK COVERED GEOTUBE PROJECT

CONSTRUCTION METHODOLOGY

Miratech Division

Ten Cate Nicolon

PROJECT OVERVIEW

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STELLA MARIS MARINA

CASABLANCA, ECUADOR

13.7M CIR. GC1000 GEOTUBES

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SLURRY PIT FOR PUMPING SAND TO THE GEOTUBE

AND

HYDRAULIC DRIVE

FOR

4”H&H PUMP

(Note, pump suspended into slurry pit)

4” H & H Submersible Slurry Pump Note, Water Jetting Ring At Base of Pump Used

To Slurry The Sand For Pumping

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GEOTUBE INSTALLATION FRAME

Position Frame In Water Connect Flexible 4” Discharge Hose From

Pump To Fill Port Of Geotube

Secure Geotube Within Steel Positioning

Frame

Move Positioning Frame To Location For

Placement

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FILLING GEOTUBE

PROTECTIVE GEOTUBE COVER

Fill Geotube By Pumping Sand From Slurry

Pit Into Geotube. Slurry Pump Rate At 20 to

30 m3 hr. And At 4 to 6 PSI Line Pressure

Continue filling Geotube Until It Reaches The

Design Height

Placing Geotextile Protective Cover Over

Geotube Before Placement of Rock

Placing Geotextile Protective Cover Over

Geotube Before Placement of Rock

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PLACING ROCK COVER

Working From Shore Dump Rock On Top

Of Constructed Structure

Use Excavator To Place Rock Cover On

Surface Of Geotube To Complete Structure

Covering Surface of Geotube With Rock

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PLACING AND FILLING GEOTUBES UNDER THE WATER

Secure Unfilled Geotube Within Positioning

Frame and Lower Underwater Into Position

Attach Discharge Line From Pump To Fill Port

Of Geotube

Divers Will Be Necessary To Inspect Geotube

During Underwater Filling Process

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PLACING AND FILLING GEOTUBES UNDERWATER

CONTINUED

Alignment Piles May Be Necessary To

Position Unfilled Geotube On Surface

Before Filling

Working Off Of A Barge In Deeper Water May Be

Necessary. Note, As Filling Begins, Geotube Will Fall

Into Place Underwater Between Positioning Piles

Geotube Pyramid Structure Filled Underwater Emerges

Above Surface

MIRATECH™ division of Ten Cate Nicolon will assume no liability for the accuracy or completeness of this information. No warranty or guarantee, expressed or

implied, is made regarding the performance of any product, since the manner of use and handling are beyond our control. This document should not be construed as final

engineering advice and the final design will be the responsibility of the project engineer and/or registered engineer.

05/26/04

Version 4.0

Geotube® Geobag® Geocontainer®

3680 Mount Olive Road / Commerce, Georgia 30529 / 706 335 3400 / 1 888 795 0808 / Fax 706 335 3405

A division of Ten Cate Nicolon USA