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Services : Gabions

SANDSPRIUT - PAULSHOF JOHANNESBURG December 2000

This project came about as a result of severe scowering of the river embankments and the collapse of the access road above The solution chosen was to excavate for the foundations of the composite retaining structure about 2,4m*1.5m. The excavation was then filled with blasted rock of dimensions greater than 0.5m3 and the whole matrix concreted up with 15Mpa concrete.

The retaining structure consisted of a galvanized weldmesh bent at 70 degrees to give the slope of the embankment. Placed in the weldmesh was 600mm of Gabion Stone, 1.5m of 5% cement stabilized fill and the Kaytape S270 geofabric at 600mm centres to tie the whole structure together.

Client: ALW Estates
Engineers: Foundation and Slope Stability Engineering





HIGHVELD TAXIDERMIST - ERASMIA
September 2002

Embankment protection of bridge approach abutments consisting of 6000*2000*300 mattresses and 1000*1000 Gabion baskets

Client: Highveld Taxidermist
Mian Contractor: Pace Construction



PECANWOOD GOLF ESTATE - HARTEBEESPOORT DAM
September 2001 to 2002

Wave action protection of the reclaimed land on the new peninsular consisting of 6*2*.23 mattresses placed in the dam and extending 1.5m up the bank topped with a .5*.5 Gabion basket.

A further retaining structure of 1*1*2m baskets stacked two high on a 6*2*.3 mattress was constructed to maximize the area of reclaimed land.

Client: Pecanwood Estates
Engineers: Foundation and Slope Stability Engineering
Project Manager: RH Taggart and Associates





Services : Seating

SUPPLY AND INSTALLATION OF CONCRETE BLOCK OUTDOOR SEATING SYSTEM


AMPHITHEATRE for the Botswana Broadcasting Corporation in Gaboronne
June 2003

The project called for the construction of an earth filled embankment retained on the outside with a concrete block retaining system of TERRAFORCE L13 blocks. The embankment was then cut to the correct final slopes to receive the concrete screeds upon which the seating system is installed.

Client: Botswana Broadcasting Corporation
Main Contractor: MAK/COSTAIN Joint Venture
Engineers: TTC Consulting Engineers
Approximate Value: R1.1m





University of Botswana Athletic and Soccer Stadium
August 2001

The project called for the construction of an earth filled embankment retained on the perimeter with a concrete block retaining system of TERRACE BLOCK Type TB300's . The embankment was then cut to the correct final slopes to receive the concrete screeds upon which the seating system is installed.

Client: Botswana University
Main Contractor: WBHO Construction
Engineers: TTC Consulting Engineers
Approximate Value: R1.9m
 
 



Services : CRB walls

DESIGN SUPPLY AND INSTALLATION OF CONCRETE BLOCK RETAINING SYSTEMS


City of Durban
Feb 2009

The walls were constructed as Grid Reinforced wall at 85 degrees using the MacWall system as supplied and developed by Maccaferri SA. The rockface finish in a natural concrete colour was most appealing to the Architects and showed most versatility for this application. The reinforced soils went back +-5m from the face of the blocks and form on the main the structural element of the wall.

Client: City of Durban
Main Contractor: WBHO, Group5, Pandev JV
Value of work: +-3 500 000
Design Engineer: BKS Durban



CHIPKINS BIDVEST
May 2007

These retaining walls where constructed using the MacWall blocks under licences from the USA supplied by Maccaferri SA. The walls are constructed at 5 degrees as there were severe space restrictions on the site. These blocks are ideally suited for this application due to their positive shear pin connectors to the geogrids reinforcement.

The design engineer for these walls was Johan Joubert of FSSE Consulting

Client: CHIPKINS BIDVEST
Main contractor: Tiber Construction (Pty) Ltd
Value of work: +-1 000 000



Ebotse Golf Estate
May 2006

The wall was constructed using INFRASET TERRACE BLOCKS with a lowfines concrete drainage system about a meter deep behind the wall to add to the weight of the gravity structure

Client: Ebotse Golf Estate
Contract Managers: Alan Roux and Assoc
Value of work: +-1 200 000
Design Engineer: FSSE Consulting



Parktown Historic Area - Hollard Insurance
June 2005

This historic area in Parktown had to be preserved to a large extent and well green up to hide the scaring of the new building work. The blocks supplied where by INFRASET and the colour was natural grey concrete, as can be seen these blocks have been stained with the red soil of the Parktown Ridge formation and appear to be a coloured block which blends in very well in the environment

Client: Hollard Insurance
Main Contractor: Tiber Construction
Value of work: +-1 250 000
Design Engineer: Johan Joubert FSSE Consulting



HOUSE KALITZ IRENE GLEN PRETORIA
July 2002

This project called for the construction of fabric reinforced terraces to house KALITZ in Irene Glen Pretoria.

The fill was obtained from stockpile on site and the blocks were supplied by INFRASET, Terrace Blocks Type L300



St JOHN'S COLLEGE PARKTOWN JOHANNESBURG
October 2002

The main rugby field at the College was extended North by +-10m giving the college much need additional ground

The walls were Geofabric reinforced "LOFFELSTIEN" walls of L300 blocks supplied by INFRASET

This wall is a good example of the flexibility of these walls in being able to accommodate various shapes, in this case working around and saving these beautiful Oak trees.



THE WANDERERS CRICKET STADIUM
July 2002

We were approached by the Architect firm of Moross Architects to come up with a solution to create more badly need space on the Western and Northern side of the stadium with the construction of "TERRACE BLOCK" block retaining walls. These walls were either conventional gravity wall when in cut or Geofabric reinforced earth block wall when in fill.

We also uplifted all the old paving revamped the earthworks and re-laid the paving including new paving to the areas where the additional space was created

Architects: Moross Architects
Engineer: Foundation and Slope Stability Engineers



KINGSWAY RELIEF ROAD - MASERU LESOTHO
September 2001

The road cutting went through the top of Maseru below the casino and the exposed face needed to be protected as the material consisted of a thick layer of mudstone capped with hard sandstone. This layer of mudstone weathers very quickly when exposed to moisture and the air the material however is quite stable in it's un-weathered state.
We were called in by the main contractor, Group Five Roads, to take over the protection of the cut face.
The wall was constructed with Grinaker "Terrace Block" TB500/TB300 blocks and the fill was a 5% sand stabilized material. Due to the extreme height of the wall, 14500mm at it's highest, specialized handling equipment had to be brought in to handle the construction.

This project was awarded the Regional Inland award of Excellence in 2002 in the category Concrete Block Retaining Walls

Client: Lesotho Government
Main Contractor: Group Five Roads
Engineers: ECE Consultants
 
 
 

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