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Thanks all, I should have clarified a couple things - 1) not my first endeavor, I have responsible charge to design geotechnical investigations, but I don't always decide on the lab testing suite. So I was trying to ask what lab tests, on relatively undisturbed samples, will yield the numbers...

Hi all, I'm a geologist assigning lab tests for Mod Cal and SPT samples for a sewer trunk replacement project. My GE will review the suite I choose but I'd like to take a good crack at it. What are the most meaningful tests to assign for this type of study? It will involve manholes, trenching...

oh geez, i'm reviewing my hydrology text book and I think i can just solve for Q knowing the level of the GW table and the bottom of the pit we need to lower the water level to...

Still working on recommendations for the project mentioned in my last thread which will involve a bore pit and a receving pit that will have significant dewatering needs. We performed both pump and slug testing and have very different K conditions between the pits due to different geologic...

thanks. i will look into that! would have to find out how disruptive the hammer blows would be to the alluvium standing in the banks.

Also, the bore path is below the water table, it is an active creek. So I don't know if things like chemical grouting would work.

I am doing the geotech for a water/sanitation agency project involving a jack and bore of a new main sewer line under a creek. its a narrow channel but their planned bore path has only 8 feet of planned cover which will still be within the modern alluvium at the center of the channel. are...