there is an Australian Standard to go with it-i'll post ref if i'm anywhere near work resources in the near future or try google australian standard flat tip dcp?
Yes, both are quick methods of strength determination-use both and try to get a picture of how the correlate-bear in mind (sorry for the pun) the penetrometer tests a smaller area than the vane hence localised variations in soils property can be misleading-of the course the best way is to get...
Not hugely experienced with 'deep' installations however, casing/bore verticality seems to jump to mind-was the entire hole drilled in one string of casing or was there potential for movement of the 7 inch casing within a wider hole? Was the casing to the base of the hole?
Just a...
Unsure if you have considered it but, if a understand the above correctly, removal and replacement of the soils on site will require some degree of dewatering during the works-i would be careful to ensure that temporarily lowering the water table does not create a groundwater 'cone of...
not an expert on this but it may, depending on the age of current footing and proposed loads, pay dividends to investigate the soil conditions underlying the existing foundation-it may be able to support the additional load without further work. Perhaps details of existing and proposed...
given the near surface uncontrolled fill, the need of temporary liners may come into play-this will probably slow the job and 'up' the price, as well as the groundwater table and potential need to tremie the grey stuff.
I was on a job where we were drilling into an aquifer with significant artesian pressure-we used a stuffing box to prevent the rig becoming a 'water feature'-installing the instrumentation and preventing flushing out of grout was a another kettle of fish involving several diameters of casing...
All of the above replies assume that piutehowie is dealing with a specialist piling contractor. Is he/she? If not the replies require re-assessment. piutehowie?
Most of the specialist piling contractors will use a 'clean out' bucket, basically a bucket with a hinged base which is rotated in the bottom of the hole and loose material is collected. This seems to be the accepted method as H&S frown on the man down a hole approach, although this may depend...
hello folks, new in this forum but i must admit its quality-very enlightening! UK eng in oz at the moment, decomposed granite 'deco´is used a bit down under-seems to behave well if used at the correct stage of weathering. Its basically a low fines sa to a granular material that responds well to...
