Calculate factors of safety and assess the stability of

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Reference no: EM13630701

Calculate factors of safety and assess the stability of unsupported excavation using only conventional Kirsch equation for the following engineering data:

Tunnel: circular opening

Depth: 3,000 ft below surface topography

Diameter: 15 ft

Rock properties:

Density: 0.08 tons/ft3

Poisson's ratio: 0.2

Uniaxial compressive strength: 11,500 psi

Tensile strength: 7500 psi

Other derivate of Kirsh equation can be used but only after is mathematically prove that are derivate of it.

Calculate the stability of the two points on the excavation wall given on the sketch below.

Reference no: EM13630701

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