The Netherlands: Deltares Starts Unique Experiment with Geotextile

Deltares Starts Unique Experiment with Geotextile

Today, Deltares will start a unique experiment with geotextile on the IJkdijk in Groningen.

The 15 m wide and 0,5 m long textile has been positioned vertically on the test dike. Over a period of one week, tests will be conducted to see if this approach can counteract piping. Sensors and water-pressure meters will be used for monitoring. Geotextile has been used in hydraulic engineering for some time now but using it to deal with piping is an entirely new application.

Piping has an enormous impact on the stability of a dike and it is therefore absolutely essential to confine this process. Previous studies have shown that it is one of the most important dike failure mechanisms. It occurs at the sand-clay interface, when water levels are high. The resulting pressure can force water to seep through the base of a dike. This water may take grains of sand with it, creating tubular openings (pipes) under the dike, which get bigger and bigger, endangering the stability of the structure. If piping is not confined, it can weaken the dike with the result that it can sag and, in the worst case, cause it to collapse.

If the dike passes the test, geotextile could be used as a cheaper alternative to the current measures in place to stop piping, such as widening dikes using berms or putting in sheet piling. If the experiment works out, the textile can be tested on a number of sites on a stretch of dike in the Rivierenland area.

Dredging Today Staff, September 24, 2012; Image: deltares

Share this article

Follow Dredging Today

Events>

<< Oct 2019 >>
MTWTFSS
30 1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31 1 2 3

Eastern Chapter WEDA Fall 2019 Conference

Wednesday (10/16/19) afternoon will start the program with an opportunity to take the Dredging 101 course.

read more >

DREDGING FOR SUSTAINABLE INFRASTRUCTURE INDIA

At this 1-day conference, you will experience what it means to apply this new approach in practice.

read more >

CEDA Dredging Days 2019

The conference is well-attended by professionals representing the entire cross-section of the dredging field…

read more >

Jobs>

Looking to fill a job opening?

By advertising your job here, on the homepage of DredgingToday.com, you'll reach countless professionals in the sector. For more information, click below....

apply

Dredging jobs in Abu Dhabi at NMDC

National Marine Dredging Company “NMDC” aims to be the largest dredging player in the Arab’s Gulf region...

apply

Looking to fill a job opening?

By advertising your job here, on the homepage of DredgingToday.com, you'll reach countless professionals in the sector. For more information, click below...

apply