Try the NavFac 7.1 manual for an inital review. The same company has 7.2 which addresses foundations and walls. These tend to be bibles for most geotechs and will be a good reference for you.http://vulcanhammer.net/geotechnical/dm7_01.pdf
We have had good success in these circumstances (details are not available to be sure) with the use of a geosythetic stabilization fabric followed by a gravel layer (1 to several feet thick). Arches and easy to place to form a hard layer to compact against. We have used this approach in...
Forgot to mention, segmented wall design (incl seismic) can also be done by MSEW (http://www.reslope.com/msewindex.htm) by Adama Engineering, recognized as one of the leading segmented retaining wall desogn programs. Fairly flexible, about $1,000. The company is difficult to deal with, but it...
Stedwin (www.stedwin.com) is a widely used program that will provide you with the information for approximatelt $1,200 (US) and has good graphics, used friendly windows environemnt and we can usually have our engineers learn program immediately.
We also use the latest Slope/W...
Check the web. Several companies, ADS, Contech, NDS and several other companies have good, economical underground detention and retention facilities. Hard to estimate a cost based on what you provided but on the order of 15 to 40k type numbers.
Just do a search on Google. The companies will...
Gravel when dumped does not self compact. It is just that under most applications it is not subject to excess settlement due to arching or the in place density.
As dickwewerrat correctly alludes to, if the gravel is subjected to dynamic loading (or larger static loads) it will settle (i.e...
You must also look at what the other soils that may occur within the active wedge of the retaining wall so as not violate Coulomb's and Rankin's principles.
You do not mention whether there is an additional loading from a sloping backfill.
Simply consult your geotechnical engineer .. this is...
The question that should be analyzed is simple:
Did your negligent omission of the quantity result in damages to the City and/or the Client, and would another reasonable and prudent engineer have foreseen this and not committed the error ?
Engineers (myself included) tend to say, hey you had...
Agree with the previous posts, and Dr Lymon Reese, out of Texas, is by far the leading expert in the field.
We caught a contractor placing concrete with heavy renforcement (bundles of #8 rebar, etc) in 4 foot diameter piles for a landslide mitigation where he dropped concrete 75 feet (against...
To: Gigi02
We have done many bridges for various applications and have placed the pipes in different configurations. The advice given by Stanier and SlideRuleEra are on point.
Typically only see pvc for short term applications ... as pointed out by other posts, for the reasonss stated. Good...
Your E&O will be based on your gross receipts for a company such as CNA or the other major companies. I am not sure if there are still issues about the amount of time you are in business but you can check.
The equation also depends on the amount of insurance aggregate for the year and per...
