Cut and fill to get high ABP
Cut and fill to get high ABP
(OP)
Hi all,
I have a summary ground condition as below:
Stratum Depth (m) Thickness (m)
1.Top soil 0.3 0.3
2.Reddish brown clayey SAND 0.75 0.45
3.Firm gravelly CLAY with cobbles 2.20 1.45
4.Bedrock
Water table at 1m below ground.
This is a warehouse building, the structural engineer required allowable bearing pressure (ABP) = 300 kPa (I have no idea why). A previous geotechnical engineer suggested by cut and fill 0.5m with stones & sand before knowing the required ABP, now I am handling this job. We also have the MCV test is 5.3.
My question:
a.Is that possible to achieve that much ABP by cut and fill by your experience?
b.I would certainly require more test at stratum 2 & 3, which tests are most useful for these two?
All suggestions/comments are welcome!
I have a summary ground condition as below:
Stratum Depth (m) Thickness (m)
1.Top soil 0.3 0.3
2.Reddish brown clayey SAND 0.75 0.45
3.Firm gravelly CLAY with cobbles 2.20 1.45
4.Bedrock
Water table at 1m below ground.
This is a warehouse building, the structural engineer required allowable bearing pressure (ABP) = 300 kPa (I have no idea why). A previous geotechnical engineer suggested by cut and fill 0.5m with stones & sand before knowing the required ABP, now I am handling this job. We also have the MCV test is 5.3.
My question:
a.Is that possible to achieve that much ABP by cut and fill by your experience?
b.I would certainly require more test at stratum 2 & 3, which tests are most useful for these two?
All suggestions/comments are welcome!





RE: Cut and fill to get high ABP
RE: Cut and fill to get high ABP
RE: Cut and fill to get high ABP
RE: Cut and fill to get high ABP
I have checked with the structural engineer; the issue is about the ground bearing slab for a distillery. It's quite heavy load and the layers 2 & 3 may cause more unexpected differential settlements.
I am thinking of Oedometric modulus test for these 2 layers for settlement calculation. But even the settlement is acceptable, I've still concerned about differential settlement due to the thickness of these 2 layers vary significantly.
Another idea is to change the ground bearing slab to suspended slab supported by vibro concrete columns since the bedrock is not so far and keep away from dewatering pain?
Any thoughts?
RE: Cut and fill to get high ABP
RE: Cut and fill to get high ABP
You can preload and monitor settlements but if you really want 300kPa you may need to go to bedrock.
RE: Cut and fill to get high ABP