Anybody have any useful/published methods for calculating heave of a basement. The excavtion will be 4m deep and in an overconsolidated high plasticity clay? Some advise on time for heave to occur would also be helpful.
I was looking at possibly doing oedometer tests. I anticipate that the...
Thanks guys, your ideas are a great help. I'm doing an intrusive investigation next week and will inform you of the outcome. As it stands at the moment it seems to me unlikely that it is purely a settlement problem within the foundation even though all the observed movements seem to indicate...
Many thanks for replying Kam. The water table now appears to be at ground level on both sides of the embankment. I am proposing to install piezomters within the embankment and also beyond the toe. I am also proposing to install some basic slip indicators to confirm that it is not a slope...
We have been asked to look at a 150 year old, 4m high, railway embankment constructed over approximately 5m of peat over chalk. Over the past 3 years the embankment has begun to settle (approimately 500mm of downward movemnt). The embankment was never a problem previously and I would assume...
Any advice on how to calculate the likely heave (short term and long term) due to the excavation of a 4m deep basement in overconsolidated high plasticity clay?
Pure aluminium tanks were chosen to store 100% conc. nitric acid on a commercial scale.When 50%v/v HNO3 is used,corrosion happen.Causes?Is it due to oxidation forming Al2O3,but when scratched,exposed aluminium,which reacted with the diluted acid?What type of materials should be selected?Can i...
