Backfill with a medium grained sand. It's becoming very popular in the UK with many many consultants spec'ing it. Easier to predict how it'll behave and easier to install, more uniform etc etc etc
Fattdad - I agree totally. Background levels crucial to arguing this case away. If it's naturally occuring why try to remediate - excuse spelling I'm in rush
Yeah, don't get me wrong, I'm faily pragmatic and belive that if a job needs doing, get on with it! But, how many of those accident are avoidable? I'm fully aware of the dangers of rigs, both large and very small, and I realise that genuine accidents happen.
I' dunno, just seemed like a heck...
Whoa there kslee1000. Any time I question the strict H&S requirements from our H&S people, particularly when they are being very 'diligent' and have cost implications, they simply reply to me 'What price someone's life?'. Which is something one cannot argue against. In the UK we are adopting the...
Okay I appreciate you putting the argument into proportion with the medical facts but,,,,, seeing the chaos in the UK since that lad was killed in the trench (see other thread), with our paperwork, reiteration of safety to juniors, toolbox talks, training in the use of shoring etc etc etc I'm...
Righto chaps,
I was lounging at home watching tele the other night when I heard a rather shocking 'fact'. I was watching 'oil riggers' about static oil rig in the states, following the trials and tribulations of drillers and roughnecks. Anyway, the programme stated that,,,get this,,,eight...
Howardoark - Any injury or fatality is incredibly sad, but I do have to agree with you. This job can be risky enough (we're not accountants,,,we work with big diggers, rigs often in quarries, or roads or railways), without entering into an unshored trench. I know that here in the UK, this type...
I can pick holes in the new Euro Standards even though they are very good. I have only just glanced over the South African Standard quoted and can see any number of ambiguities. Firstly I know Tim Spink (as in Spink and Norbury BS5930) was supposed to be trying to eradicate the use of light or...
Yeah centralizers is a good comment.
I've had many arguments about grout consistency. One consulting engineer was writing a dissertation on the topic and produced a spec for the grout for the driller to mix. The grout was supposed to be a similar consistency to the surrounding ground. When the...
Patgeotech - So hang on a minute, as long as a local contractor understands that there is a band of 'strong clay' or 'very loose limestone' is it okay to endorse?
As part of our remit as professionals I continually try to update contractors to the most recent standards. It's called continual...
Yeah, all good advice. I have read that some companies manufacturing inclo's are suggesting that a sand backfill is better at mimicking the consistency of the natural ground than faffing around with grout consistencies.
Also you can buy 'snap on' casings that click together very neatly without...
Soft - firm - stiff - very stiff are terms used to describe the consistency / strength of cohesive material - clays.
Loose - medium dense - dense - very dense - are terms to described the density of granular sediments.
Very weak - weak - moderately weak - moderately strong - strong - very...
