Piping control the Van den Herik method
Description
Our circle of mere engineers with very diverse disciplines meets every second Tuesday of the month at 18.00 in Het Bosrestaurant at Joppelaan 100 in Gorssel (Joppe). The evenings last until about 21:00 (if it is very sociable, it sometimes extends to 21:30)
During these meetings, a wide variety of often technical subjects are discussed in a good, friendly atmosphere. The meetings always proceed with a lot of interaction and discussion. Besides the fact that you are informed about very diverse topics and can talk along, it is great fun to get to know each other well.
The ambiance is chosen with care. The dinner we have together is always of excellent quality. Moreover, there is plenty of opportunity for networking and friendly conversations.
On Tuesday 8 November, Ernst Oosterveld and Jeroen Terlingen will give a presentation on Piping.
What exactly is piping? Piping is a major failure mechanism in dykes, whereby water with sand particles flows under the dike. Behind the dike, the water rises with the sand particles. This creates a channel (a 'pipe') under the dike and a well on the inside of the dike. This can weaken the dike and eventually even cause it to collapse. One solution, tried and tested on the IJkdijk, is the vertical application of geotextile in the longitudinal direction of the dike, at the separation of sand and clay.
A solution against piping and also tried and tested on the 'IJkdijk', is the vertical application of geotextile in the longitudinal direction of the dike, beyond the clay layer into the sand layer.
In 2013, the Rivierenland Water Board approached the market to develop a method for applying this geotextile. Van den Herik Sliedrecht won this tender by coming up with the best idea and elaboration of a possible application technique: 'Piping Control'. An in-house developed, innovative method to apply the geotextile vertically in the (toe of the) dike. Piping Control is a deep-draining machine that unfolds the fabric underground in a single pass, where the fabric is immediately backfilled on both sides with sand and clay according to the original structure of the soil
Speaker(s)
Ernst Oosterveld works at the engineering and consultancy firm Tauw and is, among other things, project manager in the field of dike improvements and will give a further explanation of the failure mechanism Piping.
Jeroen Terlingen is Manager of project support departments at contractor Van den Herik-Sliedrecht and one of the inventors of Piping Control. He will give a presentation on the development and operation of the Piping Control Machine. One of the most innovative solutions against piping at the moment
Location
Het Bosrestaurant at Joppelaan 100 in Gorssel
Organiser
Circle Stedendriehoek
Name and contact details for information
Hans Brouwer