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Hi, I am doing estimate for a marine project where we have lot of driven piles (precast concrete) to do. These piles would have about 10m free length (7m in standing water and 3m above water). My question is should I consider in my estimate the requirement of cofferdam also all around the areas...

Thanks BigH, The structure is an industrial unit with inbuilt operating Crane. The size of foundation is 2.5mx1.5m. I have been told that size of footing being governed by overturning stability requirements. However,maximum foundation contact pressure at the edge during worst case of loading...

For one of the project we have planned to conduct plate load test. The bearing capacity has been checked for both shear failure criteria (of soil) and settlement criteria as well. Settlement of footing governs the design. The allowable bearing pressure has been estimated as 500kPa for settlement...

Could anybody please provide me the guidelines of minimum depth of foundation? I have a situation where foundation is to be rested directly on the ground. The ground consists of 250mm compacted fill underlain by sound partially weathered sandstone. The size of foundation is 6mx0.5m. I am...

Thanks Georam for your valuable input. That's exactly we have planned now. You have the very similar experience to what we are trying to do. Regards

Thanks Focht3 and BigH, We have decided to go ahead with probing program using air track (similar to BigH's experience) By the way project is in Saudi Arabia, Alumina smelter plant undergoing expansion. Voids of size maximum upto one cubic meter (during probe drilling)were observed at four...

Thanks Focht3 and BigH for the quick response. To add further, the structure is a industrial building. The footing size is mostly 4mx6m at about 12m center to centre. There is a severe risk associated to the plant equipment and personnel in case of any distress in foundation in future (this unit...

Arcangelo, Few years back I did liqefaction analysis of potential liquefiable fine sandy soil. That time I used a technical paper by Seed & Idris. I don't remember the title. The paper had some graphs using the gradation properties of soil along with the ratio of shear strength of soil and...

I am working on a project in which footings are to be rested on Limestone formation. Limestone rock starts right from the surface. As we all know that there is a probability of solution cavities formation in Limestone. However, out of 20 boreholes drilling across the site, only 3 boreholes...