Storage tanks

• Greenfield projects• Brownfield projects• Extensions• Remediation

Geotechnical solutions for the construction industry

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Keller Group plc - Who we are Every day, people around the world live and work on ground prepared by Keller, the world’s largest geotechnical specialist contractor.

Solutions specialist

Used individually or in combination, our technologies solve a wide range of challenges across the entire construction sector – from industrial, commercial and housing projects to infrastructure construction.

Global strength and local focus

Global strength and local focus are what makes us unique. Our knowledge of local markets and ground conditions means we’re ideally placed to understand and respond to a particular local engineering challenge. Our global knowledge

base then allows us to tap into a wealth of experience, and the best minds in the industry, to find the optimum solution. With 10,000 employees and operations in more than 40 countries, we have the people, expertise, experience and financial stability to respond quickly, get the job done and see it through safely.

By connecting global resources and local knowledge, we can tackle some of the largest and most demanding projects around the world but the everyday work we do is just as important and, in total, we handle an unrivalled 7,000 projects every year.

North America Division EMEA Division APAC Division

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Keller at a glance established

1860

countries40

employees10k

projects pa7k

Grouting

Earth retention

Instrumentation and monitoring

Ground improvementWe arethe world‘s largest geotechnical specialist contractor

Helping create infrastructure that improves the world’s communities

Deep foundations

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Storage tanksPlanned tank storage facilities may require ground improvement to increase soil bearing capacity and control settlement, deep foundations to transfer loads to competent bearing strata, or drainage to accelerate consolidation of saturated soils before construction.

Keller offers a wide range of solutions for supporting tanks, always selecting the best approach for the soil characteristics.

Our engineers will work out the most suitable technical solution for meeting the API (American Petroleum Institute) or any other required standard. If simple, grade-supported tanks are not possible, we have an extensive variety of ground improvement solutions which avoid employing expensive deep foundations when there is a cheaper option.

Challenges we can solve Bulk liquid storage is often located in sea or river ports, where the soils are weak and compressible. Bearing heavy loads is always a challenge and, if shallow foundations result in settlement and damage over time, can be costly. Tailored solutions are often needed to mitigate excessive deformations and avoid future problems.

We provide services to the tank storage sector for new construction and renovation. If there are unacceptable deformations during or after construction, we can also design and implement appropriate remediation work to stabilise the tanks.

What makes us differentKeller is more than a foundation contractor: we partner with our clients from the early stage of their project and our engineers work closely with the technical team to define and design the most suitable and cost-efficient ground engineering technology. We follow-up each project with a Hydrotest survey.

Our broad experience and wide range of technologies ensure our clients the best value for money solution.

Health and safety Health and safety is a priority for Keller and we have a proven track record of one of the lowest accident frequency rates in our industry. The commitment of leaders and employees to our Think Safe programme has earned us awards and recognition from industry bodies as well as our clients.

We believe no one should be harmed as a result of any work we do and our ultimate goal is zero incidents.

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Ground improvementOiltanking Tank FarmKarimum, Indonesia In a greenfield coastal area where the rock was at variable depth between -3 and -30m and also formed a hill within the project boundaries, 30 tanks from 20 to 62m diameter, 22m tall were built. Ground improvement with 108km stone columns up to 25m depth allowed to comply with the differential settlement prescriptions. The rock excavated on the site was crushed and used as material for the stone columns, generating substantial savings and carbon footprint reduction.

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Projectexamples

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Ground improvementGPS Terminal extension Amsterdam, NetherlandsIn the port area of Amsterdam, GPS has extended the storage capacity of its tank terminal with six new tanks at 25m in height and between 29 and 36m in diameter.

To overcome weak soil and insufficient bearing capacity, as well as a soft clay layer between five and 15m down, causing significant settlement, Keller Funderingstechnieken designed a tailored ground improvement solution using CMM®. This solution was implemented to achieve long-term performance and reduce settlement to 2cm during tank operation.

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Ground improvement Project PERN Gdansk, PolandIn the port area of Gdansk, the extension of the PERN terminal included six new 62-metre-diameter storage tanks and four 17-metre-diameter water tanks. The local soil conditions are unsuitable for heavy structures, with high organic content down to 21m-deep leading to unacceptable settlement. Keller Polska implemented CMM® ground improvement technology to meet the challenging settlement criteria of 5cm between the centre and edge of the tanks.

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Projectexamples

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Ground improvementBurgan Cape Terminals Cape Town, South AfricaThe ground at the Burgan Cape terminal in Cape Town is made up of heterogeneous fill of varying conditions including concrete blocks and debris. For the extension of the storage capacity at the terminal, 13 tanks at up to 31m diameter were built, covering an area of 15,100 m². Keller company Franki Africa designed and implemented a dynamic compaction solution for settlement control and improvement of bearing capacity.

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Ground improvementSUMED Product Hud Ain Sukhna, EgyptAs part of the extensive ‘Ain Sukhna Product Hub ASPH’ development (including onshore and offshore facilities for storage, loading/unloading and sending out fuel oil, LPG and natural gas) Arab Petroleum Pipeline Co. SUMED erected a storage tank farm. The diameter of the tanks varied from 38 to 55m and the height from 21.5 to 28m, for individual capacities ranging from 25,000 up to 50,000 m³. The particularly challenging sensitive soil conditions led Keller engineers to design a vibro replacement solution, reaching depths of 38m – a first in Middle East. This solution will also prevent soil liquefaction and any damages should there be a seismic event.

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Projectexamples

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Ground improvementIndian Oil Corporation Ltd. Assam (North-East India) Soft clay deposits up to 20m deep were far from ideal ground conditions on the plot of this India Oil Corporation project. Keller was awarded a design and build contract for the foundation of plant and non-plant buildings and 10 steel tanks for oil products and fire water. The tanks, with either fixed and floating roofs, range from 14 to 26m diameter and up to 16.5m in height. Keller India performed ground improvement with stone columns to 20m depth, to achieve the required bearing capacity within the soft ground and limiting the settlement. Despite heavy rainfall during a long monsoon period, the project was delivered successfully on time.

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Ground improvementFiagril Ethanol tanksMato Grosso, Brazil F&S Agri Solutions Ind. E Biocombustiveis LTDA is building one of the world’s most advanced production plants dedicated to biofuels and animal food. In this region, soft collapsible soils make it difficult to install heavy storage units. To ensure a safe and effective foundation for the five ethanol tanks, each with 31m diameter, Keller Tecnogeo designed and built an innovative stone column ground improvement concept 16m deep with a cement seal on top of each column. This method accelerates the consolidation of the soil beneath the tanks, stops any liquid from penetrating into the sensitive soil and prevents any future damage.

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Projectexamples

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Ground improvementPRIO tanks Aveiro, PortugalKeller Geo-Fundações had been treating the soft soils of this area for more than a decade before building production facilities and storage tanks. The latest project involved the implementation of vibro replacement to enable the construction of three new tanks with diameters up to 36m and up to 18m high.

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TÍTULO DO DESENHO:

Nº OBRA:

DATA DE EMISSÃO:2018-11-15

ESCALA: 1/200

Nº DESENHO:1

DESENHOU:

M.L.M.C.DONO DE OBRA

DPTO. TÉCNICOM.G.G.

OBRA:

-PORTUGAL-0 1.0 2.0 3.0 4.0 5.0m

(ORIGINALES UNE A-1)

AMPLIAÇÃO DO PARQUE DE GASOLINAS.GAFANHA DA NAZARÉ ILHAVO.

GRÁFICA:

PLANO REALIZADO CON "AUTOCAD-V2015"

AMARILLO

0.300

ROJO

0.200

VERDE

0.300

CYAN

0.450

BLANCO

0.150

MAGENTA

AZUL

0.450

0.600

qq.dwg

NOMBRE DE ARCHIVO:

PLANTA GERAL DE DISTRIBUICÃO

PRIO SUPPLY

VERIFICADO:

KELLER CIMENTACIONES, S.L.U.C/ Argentina, 15.28806 Alcalá de Henares. Madrid (España)Tel.: 00-34-912 98 96 00Fax: 00-34-914 23 75 62E-mail: info@keller-cimentaciones.comWeb: www.keller-cimentaciones.com

CONFORMEDIR. DE OBRA:

ESTA PROPOSTA DE SOLUÇÃO TÉCNICA, DA RESPONSABILIDADE DA KELLER E REALIZADA DE ACORDO COM OSELEMENTOS DISPONIBILIZADOS PELO DONO-DE-OBRA E DA AUTORIA DA PROJECTUAL, CARECENDO DEAPROVAÇÃO POR PARTE DO DONO DE OBRA / PROJECTISTA PARA A SUA EXECUÇÃO E SENDO, ASSIM,INCORPORADA NO PROJECTO GERAL DEFINITIVO.

ESTA PEÇA DESENHADA FOI ELABORADA COM BASE NOS DADOS TOPOGRÁFICOS QUE NOS FORAMTRANSMITIDOS, DEVENDO A SUA IMPLANTAÇÃO EM OBRA SER VERIFICADA CONSIDERANDO OS DESENHOS DEEXECUÇÃO DEFINIDOS PARA ESSE FIM.

O PRESENTE DESENHO CORRESPONDE À NOTA DE CÁLCULO VERSÃO 5, DATADA DE 06/12/2018, QUE EXPÕE OSCONCEITOS TÉCNICOS DESTA PROPOSTA

NOTAS GERAIS1.

2.

3.

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Ground improvementKinder Morgan Oil Storage Edmonton, CanadaTo allow for the addition of an extra 16 tanks (each with diameters between 45 and 60m) at the Kinder Morgan oil storage plant, Keller implemented a ground improvement solution using soil mixing, across an area of over 35,000m². Using high-powered machines, cement was mixed in 2.44m diameter columns with the silty-sandy soil to prevent settlement and ensure bearing capacity.

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Projectexamples

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Ground improvementSettlement remediation, Italy At this site, due to the heterogeneous nature of the soil, depression in the tank bottom and differential settlement of the steel shell had damaged two crude oil tanks putting their use at risk. Keller implemented its Soilfrac® technology alongside sophisticated monitoring to lift the tank base without any interruption to service.

Keller Group PlcGeotechnical specialist contractor www.keller.com

S19_01E_2019