List of Contributions

The scenario you describe is very likely to result in consolidation settlement. I suggest you consider the following: If the aggregate base course you propose to use under the slab raises the finished grade, it will induce more consolidation settlement. Therefore, if possible, use the excavate-and-replace ...

​Based on what I see in the photographs, I am convinced that the problem is excessive lateral pressure exerted by the stockpiled clinker. Although the pictures do not show much detail along the base of the wall, I do not see anything to suggest foundation failure. It will be important to get accurate ...

​ I don't doubt that subbase and drainage may be at play here. However, in order to provide meaningful input and help determine the cause(s) of failure, it is important to begin, not with a conclusion ("Roads in my locality have been constructed without proper GSB"), but with some questions: ...

I agree that the failure pattern is highly suggestive of subgrade shear failure, as there are clear signs of both rutting along the wheel paths and heaving in the area between the wheel paths. I don't find the idea of heave due to thermal expansion very convincing, since it doesn't explain the rutting ...