Geocomposite Drain 1

[haynewp]

Can someone point me to a manufacturer's website for geocomposite drains? The funtion for the type I will have going in on a project will be to reduce the amount of liquefaction settlement, some type of perforated tube vibrated into the ground? Any advice on using these versus using piles or stone columns?

 

[mdhshanwil]

The mandatory preface: you need to talk to a geotechnical engineer.

There's a lot of information out there on this subject, and a few products that work well. Each has its application (see preface).

For some good overall information see Steve Kramer's liquefaction site:

http://www.ce.washington.edu/~liquefaction/html/how/soilimprovement.html

((The above site is also about the best overview of liquefation))

There is also an ASCE GSP on this subject.

Specific information on:

Earthquake drains:

http://www.nilex.com/Products.aspx?ProductID=58

Stone columns:

http://www.laynegeo.com/vgi.html

http://www.haywardbaker.com/services/vibro_replacement.htm

Deep mixing:

http://www.pubs.asce.org/

http://WWWdisplay.cgi?9901052

http://www.new-technologies.org/ECT/Civil/deepmix.htm