specification for geotechnical investigation
specification for geotechnical investigation
(OP)
I am a structural engineer who has been assigned the task of writing a specification to procure geotechnical services related to an underground natural gas pipeline of approximately 3 miles in length. I'm hoping a geotechnical engineer can steer me in the right direction. The issues that I believe need to be addressed include: How ofter should borings along the pipe route be taken? What is the appropriate type of geotechnical report to request (Data Report, Interpretive Report, Baseline Report, etc)? Should the report be included with the bid documents?
In addition to the above, is there a website where I can download standard geotechnical specifications related to this type of project?
Thanks in advance for your assistance.
In addition to the above, is there a website where I can download standard geotechnical specifications related to this type of project?
Thanks in advance for your assistance.





RE: specification for geotechnical investigation
I have used geophysical methods (such as resistivity or simple refraction) to provide better coverage of a pipeline alignment, with borings used to augment the findings. I've seen boring spacing be as close as 250-ft to as much as 1000-ft. The key thing to remember is that it doesn't necessarily have to be the same along the alignment. Allow for variations where the conditions are likely to be irregular.
In terms of the type of report to request, I would expect to provide a report that interpets the findings with respect to geology, soil conditions and how the conditions will influence construction, as well as the long term performance of the pipeline.
You might try the ASFE website for sample RFPs (www.asfe.org)
RE: specification for geotechnical investigation
RE: specification for geotechnical investigation
RE: specification for geotechnical investigation