A rock slope of about 18 m high is vulnerable to toppling failure (both direct and flexural toppling failures) according to kinematic analysis. Please do suggest a method in which anchoring can be done in finite element based numerical analysis (Phase 2, Rocscience 2016) for the slope in order to stabilize it. What are the necessary specifications to be followed for the same..!!
Is it enough to stitch the toppling blocks and stabilizing the slope by treating the failure as a planar failure, thus following the relevant codes for reinforcing planar failures..!!
As operative suggestion, you should consider which is the critical spacing and depth of unstable volume of slabs and blocks. This can allow you to select a suitable stabilizing force for anchoring (as in your question) and also to provide a reliable length of anchoring in a zone unaffected by the toppling phenomenon.
You should take into account also the position of supports along the slope in a way that can be actually operated by workers.
Finally, consider that toppling can undergo a quick development, so monitoring could also not being sufficient for overall checking.
Best Regards
I'd recommend you to use RocTopple from Rocscience as a directly and simply fit your application.
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