Aveng Ground Engineering is a South African geotechnical contractor that has provided piling, grouting, and lateral support services for over 45 years. The document outlines Aveng's major focus areas and products, which include various piling techniques, renewable energy foundations, lateral wall support systems, grouting services, geotechnical investigations, and details of notable past projects. Aveng has a headquarters in Johannesburg and a regional office in Cape Town, and prides itself on being involved in projects from the conceptual phase through to construction.

1. Aveng Ground
Engineering
Profile
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2. Overview
Aveng Ground Engineering is a geotechnical
contractor based out of Johannesburg that has
serviced the South African geotechnical market
with distinction for over 45 years.
The company’s major focus is on piling, grouting
and lateral support with a small division involved
in geotechnical investigations to assist consulting
engineers and clients in project planning.
Formed in 1970 by Ross Parry Davis, then Ground
Engineering and Piling Limited was purchased by
LTA, the construction division of Aveng in 1975.
Aveng Ground Engineering, in executing some
of the largest and most challenging projects in
South African history, has proved itself to be at
the forefront of technology, quality and safety in all
spheres of foundation works and improvement.
Section1
Overview
Contents
Overview 1
Products 2
Piling 2
Renewable energy 6
Lateral support 8
Grouting 10
Geotechnical investigations 12
Flagship projects 13
Contact us 13
Visit our website for more information
about our group capabilities and global
project portfolio. www.aveng.co.za
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3. Piling
Open Hole Auger Piling
Auger piling is the most cost effective method of installing piles and is suited to stable dry ground
conditions where bedrock is at a depth allowing pile loads to be carried in side friction and end
bearing. In addition, auger piling also provides the largest variety in load bearing capabilities making
it the first solution considered for any piling job.
Sizes range from 400mm up to 1800mm (up to 20 000kN), with a maximum depth of 70m and can be installed up to
an inclination of 1:6.
Screw-In Cased Auger Piling (SICAP)
SICAP takes the benefits of auger piling and applies them to collapsible and water logged
conditions. Used specifically in bridges to allow large load-bearing piles to be installed, the casings
are installed using the power of the modern hydraulic rig’s rotation drive unit.
Sizes range from 750mm to 1050mm (up to 7 000kN), with a maximum depth of 30m and can be installed up to an
inclination of 1:6.
Oscillator Piles
Traditional bridge piles, the oscillator pile is used in conditions where SICAP is not feasible (ie great
depths or extremely hard in situ rock). The oscillator is an additional unit attached to the modern
hydraulic piling rig that can generate up to 150 ton torque.
Sizes range from 900mm to 1200mm (up to 9 000kN), with a maximum depth of 50m and can be installed up to an
inclination of 1:6.
Concrete Instrumented Continuous Flight Auger (CFA) Piles
Aveng Ground Engineering is the South African industry leader in concrete instrumented CFA piles.
The modern technology allows the installation of the CFA pile while eliminating the drawbacks
of costly grout and limited quality control. Concrete instrumented CFA piles are best suited to
collapsible geotechnical conditions and sites where the pile load will be carried in side friction as
opposed to end bearing. An additional advantage to concrete instrumented CFA piles is that the
modern hydraulic piling rigs used have the capability to auger through limited boulder layers and
provide a small pile socket, both of which preclude crane installed grout CFAs.
Sizes range from 500mm to 900mm (up to 3 750kN) with a maximum depth of 19m. Concrete CFA piles can only be
installed vertically
Full Displacement Auger Piles (FDP)
Full displacement auger piles are a modern piling method imported by Aveng Ground Engineering
from Europe. FDP can be installed in soft sandy material with the benefits of increased skin friction
and toe resistance due to material compaction, providing a more economical pile design (shorter
piles, smaller diameters, less steel consumption)
with low-vibration drilling, high daily productions and
greatly reduced piling spoil.
Sizes range from 410mm to 620mm with a maximum depth
of 19m. Similar to Concrete CFA piles, FDP Piles can only be
installed vertically.
CFA Piling
Section2
Products
Oscillator Piles
Srew-in Cased Auger piles
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4. Percussion Piles
Self-Drilling Anchor Piles (Sappi/Klein Windhoek)
Aveng Ground Engineering is in the unique position, through our affiliation with Aveng Duraset, to
provide the most cost effective solution for self-drilling anchor piles. These piles are installed by
means of a hydraulic drill rig using grout flush and are most suited to limited access areas that have
collapsible conditions and shallow bedrock.
Self-drilling anchor piles are usually installed in pile groups of at least three to counteract
slenderness.
Sizes range from 76mm to 130mm (up to 800kN) with a maximum depth of 20m and can be raked in certain
instances.
Percussion Micro Piles (Longlake/Women’s Heritage Monument)
Percussion micro piles are installed using a down-the-hole hammer to allow installation of small
diameter piles through hard material. Aveng Ground Engineering is in the unique position of being
able to install piles up to a 350mm diameter (500kN) in 2.5m headroom, which has been very
useful in renovations of existing buildings.
Sizes range from 125mm to 400mm (up to 1 000kN) with a maximum depth of 30m and can be raked in certain
instances.
PreCast Piling
Aveng Ground Engineering owns the most advanced precast piling equipment in South Africa,
positioning us perfectly to tackle any large scale projects. Precast piling is best suited to areas with
very soft, collapsible geotechnical conditions and very deep bedrock.
Precast piling has the advantage of high quality standards due to the precast nature of the piles,
and time benefits due to the high speeds of installation.
Sizes range from 250mm square to 350mm square (up to 2 000kN) with an unlimited maximum depth and can be
installed to a maximum rake of 1:10
Pile load tests
Static pile load test
British method static pile load up to a maximum load of 1000 tons.
Dynamic pile load test
Faster and cheaper than static load tests, Case pile wave analysis programme (CAPWAP)
determines static soil resistance and simulates a static load test. A five ton weight is dropped a
specific height to replicate the pile load required and independent testing contractors utilise the
CAPWAP equipment to calculate static shaft resistance, end bearing, stresses at any point along
the shaft and energy transferred from the weight to the foundation. Results are sent for analysis
to a United Kingdom based firm where equivalent static pile load test results are derived and
predictions regarding the load settlement behaviour of the tested foundation are provided.
Maximum effective load of up to 400 tons and maximum pile size of 900mm diameter.
Section2
Products
Pile TestingSelf drilling Anchor piles (SDA)
Open hole Auger Piles
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5. Renewable Energy
CSP and PV Solar
Aveng Ground Engineering has recently increased our plant holding to include nine no. Gayk
post driving rigs to ensure we are placed at the forefront of the solar renewable energy market.
Capable of direct driving the posts or pre-drilling prior to post installation, Aveng Ground
Engineering can provide foundation assistance for any PV or CSP solar plant.
Wind Farms
Incorporating our internal design capacity, Aveng Ground Engineering is uniquely positioned to not
only offer foundation solutions for turbines founded in areas with deep bedrock but also to provide
optimisation designs for turbines founded directly on rock in order to reduce the cost and time of
construction.
Section2
Products
Solar
Wind
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6. Section2
Products
Lateral Support
Soil Nail, Post Stressed Anchors and Shotcrete
Systems
Temporary and permanent solutions for vertical excavations up to 10m
deep, most common in basements for new commercial developments.
Smooth finish can be applied to enable the shotcrete wall to be the final
interior wall for the basement.
Contiguous Piled Wall
CFA or auger piles are used to increase the supported depth of walls, up
to 20m. Shotcrete is added between the piles and post stressed anchors
are installed to support the piles.
Secant Pile Wall
Interlocking piles are installed to provide a watertight permanent lateral
support solution which eliminates the need for shotcrete. Due to the
accuracies required in pile installation SICAP piles are most commonly
used.
Sheet Piles
Driven sheet piles provide a quick and watertight temporary or permanent
lateral support solution in soft geotechnical conditions.
Rock Bolts and Rock fall protection
Most common in mining and road infrastructure, this system involves
shoring up an excavated rock face against localised failure, to ensure the
safety of those working at the bottom of the supported face.
Lateral support
Lateral support
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7. Section2
Products
Grouting
Dam Grouting – Curtain and
Consolidation
Aveng Ground Engineering is the most experienced
South African contractor in the dam grouting market.
Small diameter drilling locates fissures in bedrock so that
they can be grouted to render the dam foundation as
impermeable as possible or to ensure cohesiveness of
the founding rock to ensure it can support the large dam
structure.
Compaction Grouting
Dolomitic areas earmarked for development can have
their risk class greatly reduced by systematic compaction
grouting, which involves drilling on a grid pattern to locate
and fill any cavities underlying the site, thus reducing the
chances of a sinkhole forming.
Grouting
Grouting
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8. Section2
Products
Section3
Flagshipprojects
Geotechnical Investigations
Aveng Ground Engineering prides itself on being a choice geotechnical partner from conceptual
phase right through to construction. Having in-house design capabilities as well as in-house
professional geological capabilities allows us to provide quality information and advice.
Our geotechnical investigations division offers the following products to best assist consulting
engineers and clients to make the most cost effective foundation solution decision:
• Trial auger holes
• Core drilling
• Test pitting
• DPSH testing
• Material laboratory testing (outsourced)
Flagship Projects
Nelson Mandela Bridge – Piling
Bridge City Rail Link – Piling
OR Tambo International Airport Access Bridges – Piling
Soccer City – Piling and lateral support
Orlando Stadium – Piling
Giant’s Stadium – Piling
Sappi Ngodwana GoCell Project – Piling
Toyota Press Plant and Blanking Line – Piling
Medupi Power Station – Tension anchors
Department of Environmental Affairs – Piling and lateral support
Melrose Arch – Lateral support
Women’s Living Heritage Monument – Piling
Gautrain – Piling and compaction grouting
GFIP Package C and Package F – Piling and lateral support
Richards Bay Dry Bulk Jetty – Piling
Ingula Pump Storage Scheme – Dam grouting and lateral support
Bergriver Dam – Dam grouting and lateral support
Gouda Wind Farm – Piling
Sishen Solar Farm – Post driving
Gateway Mall – Piling
Mall of the South – Piling
University of Botswana Engineering and
Technical Buildings – Piling
Contact Us
Johannesburg (Head Office) Cape Town (Regional Office)
Telephone: +27 11 923 5144 +27 21 703 1040
Physical Address: Aveng Park Aveng Grinaker-LTA House
Jurgens Street, Corner Jet Park Road 115 Bamboesvlei Road
Jet Park Ottery
Boksburg 7800
1459 South Africa
South Africa
Email: groundengineering@aveng.co.za
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