Storage Tanks

Tank Floor Settlement Surveys to EEMUA 159

Ensure the structural integrity of your Storage Tanks with our comprehensive Tank Settlement, Differential Settlement, and Tank Floor Surveys.

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Inspection - Specialist Inspection - Petrochemical Tank

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What is a Tank Floor Settlement Survey?

The integrity of storage tanks is paramount in the industrial and commercial sectors, as they hold a variety of hazardous and valuable substances. However, over time, tanks can experience settlements, which can lead to structural defects and potentially catastrophic failures.  

At BES Group, we’ll help you safeguard your operations and protect the environment with our comprehensive tank settlement, differential settlement, and tank floor surveys to thoroughly assess the condition of your tanks and identify any potential issues. Our tank settlement surveys employ cutting-edge laser level technology to precisely measure and record settlement levels in designated locations as per EEMUA guidelines. This advanced method ensures accurate and reliable data, providing a clear picture of the tank’s overall integrity. 

Inspection - Specialist - White carbon steel tank

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Tank Floor Settlement Surveys from BES Group

We meticulously monitor edge settlement, which occurs when the tank shell settles sharply around the periphery, causing deformation of the bottom plate near the shell-to-bottom junction. This condition can significantly compromise the structural integrity of the tank, making it vulnerable to ruptures and leaks. 

Rigorous Evaluation Process 

Our qualified EEMUA Tank Assessors apply EEMUA 159 calculations, the widely accepted industry standard for tank integrity assessments, to determine if the recorded settlement levels fall within acceptable limits. This rigorous evaluation provides a comprehensive assessment of the tank’s structural stability. 

To ensure the effectiveness of our surveys, we require specific information regarding the tank’s type and diameter to tailor our methodologies accordingly. Additionally, the tank interior should be clean and accessible to facilitate accurate measurements. We strongly recommend conducting a comprehensive EEMUA 159 tank inspection alongside our settlement survey. This holistic approach provides a comprehensive evaluation of the tank’s condition, including its structural integrity, corrosion, and overall condition. 

 

 

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Experts in Tank Floor Settlement Surveys

Our team of highly experienced and qualified inspectors provides you with the most comprehensive tank settlement, differential settlement, and tank floor surveys possible. We are committed to ensuring the safety and integrity of your storage tanks, protecting your operations and safeguarding the environment.

Tank settlement can be caused by a variety of factors, including:

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Improper foundation
If the tank’s foundation is not properly designed or constructed, it can settle unevenly, causing the tank to settle.

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Soil conditions
Certain soil types, such as soft or clay soils, are more prone to settling than others.

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Heavy loads
If the tank is subjected to heavy loads, such as from stored materials or equipment, it can settle over time.

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External factors 
Environmental factors such as earthquakes, floods, or extreme weather conditions can also cause tank settlement.

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Why choose BES Group?

800+ expert
engineers

Our team of skilled engineers possesses a wealth of expertise.

A legacy of 160+ years
of experience

We’re always evolving our approach to future proof our services.

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35,000 satisfied customers

A strong reputation for providing exceptional service.

An end-to-end solution

Servicing the full life cycle, from concept through to decommission.

Accredited assurance

Confidence assured with all relevant certifications and accreditations.

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Frequently asked questions

What are the signs of tank settlement?

Some of the signs of tank settlement include:

  • Cracks or gaps in the tank shell or floor
  • Ripples or unevenness in the tank floor
  • Tilting or leaning of the tank
  • Sagging or bulging of the tank walls
  • Difficulty opening or closing tank valves or hatches
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Did you know...

10%

Structural defect related Tank Failures

10%

Structural defect related Tank Failures

According to the Energy Institute, 10% of tank failures due to structural defects are caused by settlement issues. (Energy Institute, 2022)

20%

Settlement related Tank Failures

20%

Settlement related Tank Failures

A study by the American Petroleum Institute found that settlement-related tank failures account for 20% of all tank failures. (American Petroleum Institute, 2019)

4.9 million

Gallons of oil spilled annually

4.9 million

Gallons of oil spilled annually

The US Environmental Protection Agency estimates that 4.9 million gallons of oil are spilled annually due to tank failures, with settlement being a major contributing factor. (US Environmental Protection Agency, 2021)

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