Controlled Modulus Columns 1

[engr567]

Does anyone know what is controlled modulus columns? Where can I find more information about this?

Every Problem is an Opportunity for Engineers!!!!

 

[frv]

Google.

Seriously. You need to do that before asking questions here.

 

[engr567]

Geez, why I did not think of that? ....... I was asking in terms of books or publications (more effective sources than throwing a stone in ocean, google) from someone who has done it before, kind of directly from horse's mouth. Anyway, thanks frv for suggestion.

Every Problem is an Opportunity for Engineers!!!!

 

[CANPRO]

references via google...

http://www.menardusa.com/CMC Application to Canadian Soils.pdf

http://www.menard-web.com/InternetMenard.nsf/0/3739C12CF337CA11C125718F004DFC9C/$FILE/CMCFICHEEN.PDF

http://www.geopac.ca/site/images/stories/plaquettes-ENG/geopac_cmc_en.pdf

maybe you should get some contact info from the these websites and see if they have something available.

 

[frv]

engr567..

According to your profile, you've started 42 threads and responded to none. It's not a leap to assume you don't do a lot of legwork.

Anyway, when I googled it, like CANETI did, the first five or six links provided the information you were seeking in your original post. You asked what it was, not for anything more specific. Given your question, the response was appropriate, as the google links will clearly answer the question you posed.

 

[PEinc]

Controlled modulus columns are essentially mixed soil/grout columns used to improve the foundsation soils. Do a web search for DGI-Menard, Inc.

http://www.PeirceEngineering.com

 

[engr567]

thanks all for input and help.

 

[ztengguy]

first link from google:

Controlled Modulus Columns™

The Controlled Modulus Columns™ are well adapted to high surface loading conditions and strict settlement requirements and are used to support slabs-on-grade, isolated footings and embankments on compressible clays, fills and organic soils.

A specially designed auger, powered by equipment with large torque capacity and high static down thrust, displaces the soil laterally, with virtually no spoil or vibration. During the auger extraction process, a column is developed by pressure-grouting to achieve a predetermined stiffness ratio with the surrounding soil. The result is a composite soil/cement ground improvement system.