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Frequently asked questions

vertical drains

We have noticed that there are sometimes questions around the use of vertical drains. We have tried to make an comprehensive list related to the use of vertical drains which you can find below. It can been seen as a knowledge center for clients and consultant who want to know more about vertical drains. It also provides information on when to ask Cofra for a price, where we work and what makes us special.

Badhoevedorp (4C9A0161)

Understanding Vertical Drains

This block answers your basic questions related to vertical drains. Click on the button at the bottom of this block to learn more and find the answers to the below questions.

What are vertical drains?

What is the difference between vertical drains and wick drains?

How do vertical drains work?

When should vertical drains be used and when not?

Which soil types are suitable for vertical drains?

How deep can vertical drains be installed?

Do vertical drains reduce settlements?

How much time can vertical drains save?

Learn more and find an answer to these questions
Ijburg (4C9A8003)

Design & Engineering

This block answers your basic questions related to the design of vertical drains. Click on the button at the bottom of this block to learn more and find the answers to the below questions.

Why are vertical drains often combined with surcharge loading?

What is the difference between vertical drains and vacuum consolidation?

How is the spacing of vertical drains determined?

How is the field performance of vertical drains verified?

Can vertical drains be installed through intermediate sand layers?

What challenges can affect vertical drain performance?

How do I design Vacuum consolidation?

I have soft compressible soils under my construction site, what should I do?

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Singapore Tuas

Application Areas

This block answers your basic questions related to the application areas of vertical drains. Click on the button at the bottom of this block to learn more and find the answers to the below questions.

Can vertical drains be used offshore?

Can vertical drains be used to improve peat soils?

Are vertical drains suitable for warehouse developments?

Are vertical drains suitable for highway and road embankments?

Why are vertical drains widely used for airports and ports?

Why are vertical drains widely used for land reclamation projects?

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P1070065

Method Selection

This block answers your basic questions related to the comparison of vertical drains with other techniques. Click on the button at the bottom of this block to learn more and find the answers to the below questions.

Vertical Drains vs Stone Columns

Vertical Drains vs Deep Soil Mixing

Can Vertical Drains replace piles?

What is the biggest advantage of Vertical Drains compared with other soft soil improvement methods?

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Badhoevedorp (4C9A0228)

Cofra Expertise

This block answers your basic questions related to Cofra. Click on the button at the bottom of this block to learn more and find the answers to the below questions.

Why choose Cofra for vertical drain projects?

Does Cofra operate worldwide?

When should I involve Cofra in a project?

Can Cofra support the design phase of a project?

What information does Cofra need to evaluate a project?

How much do Vertical Drains cost?

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Is your question not in the list? No worries, contact our expert for an answer

Technical Sales Cofra

For design questions or technical information.

Csm Limelights Cofra Jeroen 04 126Bf92f29
Jeroen Dijkstra
+31 (0)20 69 34 596 Jeroen.Dijkstra@cofra.com