We are looking at an "ionic polymerisation" additive to stabilise and "waterproof" soil subgrade materials. The distributor claims the polymer links together and forms a bond which increases the density of the material, while reducing the porosity of the soil matrix making it resistant to water...
We are engaged in heated discussions about the need, or otherwise, of using true colloidal grouts (cement and water) for grouting soil or rock anchors and for deep mixing in soils.
One view is that it is not necessary, the opposing view is that it is essential.We are using an Obermann twin bowl...
Has anyone observed a reduction in shaft adhesion for increasing diameters of bored piles in similar subsurface condition?
In a recent project, shaft adhesions were developed from in-situ and laboratory testing. These values were confirmed/modified based on a number of CAPWAP analyses undertaken...
Greetings from the Antipodes.
Does anyone have a contact, or knowledge of the Lousiana DOT program for pile design based on CPT data. The L-DOT site doesn't seem to mention it and I have made fruitless searches of FHWA, COE etc. Details of the program are given in Fred Spinks excellent software...
