I have been involved with the failu
I have been involved with the failu
(OP)
I have been involved with the failure of tie-rods and bolts in steel sheet pile bulkhead design. In both cases the fasteners were designed to accommodate the concentric tensile forces with ample safety factor. It is apparent that the elements were subjected to combined stresses however because there is shear as a result of the soil atop the wale. Perhaps this is also bending. My question is has anyone else seen this and what are their thoughts? Thanks a bunch.






RE: I have been involved with the failu
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RE: I have been involved with the failu
It sounds like you're saying the wale was on the soil side. In that case, it would be hard to provide compaction underneath the wale and you're likely supporting the soil above with the wale. Depending on the depth of the wale, you could conceivably shear off the wale to wall connectors and you would certainly have to design for that load.
Say you're 5 meters down. Your vertical pressure is probably around 100kPa. Say you have a 310mm wale. Your load is 31kN/m. Depending on your connection detail, that could certainly be significant.
RE: I have been involved with the failu
RE: I have been involved with the failu
Whenever I design and/or place tie rods in a fill, especially when the fill is being placed over compressible, soft soil, I place the tie rods inside and at the bottom of a plastic pipe in order to allow some settlement before the tie rod bends. If the predicted settlement is significant, the pipe may need a large diameter also. Alternatively, the area may need to be surcharged (pre-loaded) to cause the settlement before the tie rods are placed (but nobody wants to do this).
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RE: I have been involved with the failu
Thank you all and stay cool this weekend
RE: I have been involved with the failu
RE: I have been involved with the failu