Methods to Analyze Flexural Buckling of the Consequent Slabbed Rock Slope under Top Loading

Abstract EN

The consequent slabbed rock slope is prone to flexural buckling failure under its self-weight and top loading.

However, nearly none of the existing studies consider the effect of the top loading on the slope flexural critical buckling height (CBH).

Therefore, on the basis of Euler’s Method and the flexural buckling failure mode of the consequent slabbed rock slope, the calculation method of the CBH of the vertical slabbed rock slope under the self-weight is firstly proposed, and then it is extended to that of the consequent slabbed rock slope.

The effect of slope dip angle, friction angle, and cohesion between the neighboring rock slabs and rock elastic modulus on the slope CBH is discussed.

Secondly, the calculation method of the CBH of the consequent slabbed rock slope under its self-weight and top loading is proposed according to the superposition principle.

Finally, on the basis of the hypothesis that the rock mechanical behavior obeys the statistical damage model, the effect of the rock mechanical parameters n and ε 0 on the slope CBH is studied.

The results show that the rock strength has much effect on the slope CBH.

If the rock is supposed to be a linear elastic body without failure in Euler’s Method, the result from it is the maximum of the slope CBH.