Water pressure on basement slab
Water pressure on basement slab
(OP)
Recently I was involved in a project that a Sports Hall is to be constructed on a sloping groud. In the final condition there will be a retaining wall 3.5m high above the slab level on one side of the Sports Hall, and on the opposite side of the Sports Hall, some excavation is required to reduce the external ground down to the slab level. The Sports Hall is about 20m wide. Based on the Soil Investigation Report the water table is about 1m above the slab level. I would like to hear your views on how the water pressure on the slab should be defined considering that on one side the Sports Hall the final external ground level is same as the slab level. Thanks.





RE: Water pressure on basement slab
Since this system must function well over a long time, I would use graded sand and rock instead of filter fabrics and place about twice as many drain pipes as I thought were necessary.
RE: Water pressure on basement slab
RE: Water pressure on basement slab
RE: Water pressure on basement slab
RE: Water pressure on basement slab
RE: Water pressure on basement slab
You might want to add a compacted clay "cap" or similar water diversions on the top of the retaing wall to prevent surface water from traveling down the slope and then the retaining wall to the bottom of the slab.
RE: Water pressure on basement slab