backfilling at low temperatures_more_bigH
backfilling at low temperatures_more_bigH
(OP)
It is a tank foundation with a exc. bottom dia as 45m and depth about 4.5 meters. I am planning to use a loose soil layer as a blanket not to freeze the layer already compacted.
Water table is 1m below existing grade elevation, so I will be running a dewatering system as well.
The material is natural borrow pit sand with 2-3% water content. If you can advise with a general application it may help me as well,Thank you.
Water table is 1m below existing grade elevation, so I will be running a dewatering system as well.
The material is natural borrow pit sand with 2-3% water content. If you can advise with a general application it may help me as well,Thank you.





RE: backfilling at low temperatures_more_bigH
Also, you may fill all except the most inmediate section to the wall. You so forfeit this way any effects on the wall of the freeze on any soil of this first stage. Then you fill and compact the ring, that from its circular nature will attempt expansion rather than compression against the back of the wall. But if it buckles on freezing, at some point will generate a point load on your wall. So it may be interesting to as well radially divide the inner ring, to allow for any expansion effect be accommodated on the circular segments so formed. Finally, you fill the remaining cuts. Divide and win.