Flooding Compaction
Flooding Compaction
(OP)
Just enquiring to hear any thoughts on flooding/ponding as a compaction method? It was recently used on a job in Australia with silty sand as the backfill material. The end result was that the soil was extremely stiff. However a lot of underground utilities (ducting etc) have been deformed I am curious whether this may have contributed to this deformation by cause high pressures that do not usually occur or would it be another matter such as excess surface/surcharge loading causing the failures.





RE: Flooding Compaction
RE: Flooding Compaction
On this subject here is a story. I once visited a house construction job in Janesville, WI where the contractor flooded the fill he placed in an attached garage. That garage floor was at an elevation of the original ground. The house had a basement that had its shared wall between the house and garage. Basement was about 8 feet below the garage floor. Soil in the area is generally outwash sand and gravel from a glacier many yers ago. A wind blown silt then developed on that granular material about 4 feet thick. The house had a support beam in its center perpendicular to the wall. The pressure of saturated soil pushed the wall totally in and it dumped a large quantity of that saturated soil into the basement. The support bean, sitting in pockets on concrete walls at each end, got pushed out the of its far pocket about 5 feet by the failing concrete basement wall. When I talked to the contractor about this flooding practice, he said he has done that for many houses and had no problems until then. My response was "I bet you never will do that again".
RE: Flooding Compaction
RE: Flooding Compaction
http://wisconsindot.gov/documents2/research/WisDOT...
RE: Flooding Compaction
Interesting. I am familiar with one of the writers,but it is now about 55 years since I last saw him. He was one of the engineers that later took over the job I left in '62
RE: Flooding Compaction
RE: Flooding Compaction
RE: Flooding Compaction
RE: Flooding Compaction
RE: Flooding Compaction
f-d
ípapß gordo ainÆt no madre flaca!
RE: Flooding Compaction
RE: Flooding Compaction
It's due to change, but that'd require effort!
f-d
ípapß gordo ainÆt no madre flaca!
RE: Flooding Compaction
RE: Flooding Compaction