sand collape
sand collape
(OP)
hi,
I am kartik,currently I am working in a bridge construction (piling)whenever we are doing the piling,we kind of saving 2 or 3 m3 than actual I don't know whats the problem ,somebody saying it is because of collapsing and i am not sure about that.our pile dia is 1.2m and we are using 1 piece of 8mm and 7 pieces of 6 mm,help me to figure this out ,and also i want the details of bucket dimensions
I am kartik,currently I am working in a bridge construction (piling)whenever we are doing the piling,we kind of saving 2 or 3 m3 than actual I don't know whats the problem ,somebody saying it is because of collapsing and i am not sure about that.our pile dia is 1.2m and we are using 1 piece of 8mm and 7 pieces of 6 mm,help me to figure this out ,and also i want the details of bucket dimensions





RE: sand collape
Is this an augered pile? What method is being used for concrete placement? What is the depth? What is the geotechnical profile?
RE: sand collape
0-1.5m=sandy clay with gravels
1.5-6m=stiff brown sandy clay
6-10.5m=stiff greyish sandy clay
10.5-18m=dense blackish silty sand
18-24m=hard sandy clay
24-32m=yellow brown silty clay with gravels
32-33m=greyish boulders
33-42m=hard brownish silty clay
RE: sand collape
The other layer is the boulder layer...this could result in sloughing or voids. Sloughing would decrease your concrete volume and voids would increase the volume.
Keep in mind that placement by tremie gives you little control over the documentation of actual volume. If you placed the concrete through the auger as the auger was extracted, you could control both sloughing and volumetric measurement of the concrete used through knowing the pump displacement and counting the pump strokes.
RE: sand collape
32 m why it cannot be removed at the time of flushing,and because of caving the amount of concrete should increase but we kind of saving concrete ...we are using bentonite solution for flushing.the worst part is that we are going to do RPLT test on that pile group
RE: sand collape
RE: sand collape
RE: sand collape
RE: sand collape
RE: sand collape
You should not have problems with the soil and water table configuration you are describing.