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retaining walls

retaining walls

retaining walls

(OP)
I am looking at putting in a retaining wall in a cut section.  There are gas and telephone utility lines behind the proposed wall location at about 6' off at one point.  My walls are only 6' high and have a length of about 950'.  I have determined either soldier piles and lagging or soil nailing should be used.  Any comments on which is more economical, practical, better to use in this situation?  The soil is silty fine to medium sand with trace to little gravel from about 25' and under that is lean clay.  Bedrock is at about 37' below ground.  There are boulders in some locations at 12' below existing ground.  For both options, what is a preliminary guess at the pile length/soil nail embedment?  any suggestions would be appreciated.  thank you

RE: retaining walls

If you are dealing with a height of only 6 ft., you might want to consider a modular block wall.  They require only a modest footing, are economical, and very attractive.  For heights above 6 ft., a geo-grid is used to impart Reinforced earth properties.  There are many brands such as Pavestone, Versa-lok,Landmark by Anchor Wall, and many others.  

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