How to overcome sliding due to limited heel width
How to overcome sliding due to limited heel width
(OP)
I am facing a problem with a limited heel width (about 0.5m) of a 4.6m tall retaining wall. I've got plenty of space on the toe side. Sliding is the critical condition. I have considered a shear key, but the effectiveness of the shear key seems to be not impressive. Appreciate your advice. Thanks.





RE: How to overcome sliding due to limited heel width
RE: How to overcome sliding due to limited heel width
The section of the wall is as given below:
RE: How to overcome sliding due to limited heel width
RE: How to overcome sliding due to limited heel width
RE: How to overcome sliding due to limited heel width
This is actually a retaining wall and a foundation to a super structure. The superstructure is 3 storied steel building. Columns are spaced at 4m intervals along the wall. The wall is 36m in length. I have isolated in 12m intervals for thermal shrinkage issues. The loads from the superstructure can be ignored for now, because the sliding is critical just before the superstructure is erected. During construction the is doubtful about the construction methods, and the passive pressure above the footing level is not reliable. So I have to ignore the passive pressure. The safe bearing capacity of the soil is 175 kN/m2.
I have to consider active pressure with a coefficient corresponding to soil at rest condition, this works out to be 0.5. Saturated soil unit weight is taken as 20 kN/m3. So the lateral pressure on the wall is 10 kN/m2. In addition, on the uphill side a 3m wide road will be laid. Can be assumed as a 12 kN/m2 imposed pressure.
The existing ground level is the level indicated on the uphill side. On the toe side, the ground floor.
Thanks in advance.
RE: How to overcome sliding due to limited heel width
RE: How to overcome sliding due to limited heel width
RE: How to overcome sliding due to limited heel width
RE: How to overcome sliding due to limited heel width
RE: How to overcome sliding due to limited heel width