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A huge THANK YOU to all the respondents out there who took the time to answer my thread. Every thread interested me.Great advice and I greatly appreciate it. I plan to take only 10 to 20 projects a year as an engineer in private practice. Interesting to note that I was recently contacted to...

I am a licensed PE and at a point in my career where I can afford to be a private consultant. Regarding professional liability insurance, I would like to benefit from the experience of some of my colleagues out there....How much coverage does a geotechnical engineer need? Any thoughts?? Thank you

Timber piles will be embedded in the wall footing.

The timber piles are intended to support concrete wall footings for a 2 story, single family homes. Substantial strata (medium sand, 10 feet thick) is overlain by 15 feet of soft clay and lenses of peat. Thanks to all for your comments.

I am working with a contractor in a development who prefers to drive timber piling with the bucket of his excavotor. He has a Caterpillar 321C/LCR. It would be helpful to know what kind of energy he is imparting on the 12" by 25 foot timber pile. He typically drives the pile until he gets...

Answer to inquiries by Geopave, PEinc and Lcruiser: Thank you very much for your input, I appreciate it greatly being able to benefit by your insight. Now, the boring machine is the size of a pickup truck. I am using 2 or 3 sections of sheet pile as the anchor and doubled channel(back to back)...

Thank you again PEinc and Geopave: I understand your suggestions. Unfortunatley the trench is at least 50' long.

To PEinc: Thank you for your input. This trench will be used to lower a horizontal boring machine into for a 20" pipeline laying project. They don't want to use bracing or struts since they would tend to get in their way. The anchors are located 3' down from grade.

I recently designed an anchored sheet pile wall for a construction contractor. The trench is 20'deep and 12' wide. My design called for the anchor rods to be 1 and 1/2 inch diam.steel rods at 10' spacing. Each rod was subject to approx. 50,000 lbs tension based on my calculations. The contractor...

Thanks to all for the good advice on solutions to my design issue. I wanted to specifically ask Big H where to find the SlideRuleEra's web site that shows Foundation Know How items because the web site I did find for SlideRuleEra had foundation topics but none had to do with foundations on peat...

Reply to dicksewerrat. Yes these homes will have public sewer and water hook-ups. Thank you sir for the tip. 3of12

I have been asked to design several single family home foundations on a lake in southern Michigan. The site is underlain by 8 to 14 feet of fibrous peat. I believe my only options here are to drive timber piles to the substantial strata below the peat OR excavate the peat out of the site and...

I have been asked to design some residential foundations near a lake here in Michigan and have been told the top 8 to 14 feet of the site is a layer of fibrous peat. Based on my own personal experience, I believe I have 2 options:1. remove the peat and replace with compacted coarse granular fill...