Verification and validation is the process of checking that a software system meets specifications and that it fulfils its intended purpose. It is an important part of software testing.
There is a long history of limit equilibrium slope stability analysis in 2D, and there are some well documented analyses that have been used by slope stability software developers to test their code. We have taken these problems from the published literature, and used them to test the TSLOPE 2D analysis implementation.
Well documented 3D analyses are less readily available. However there are a few 3D examples that we have been able to reference from the published literature, and we have compared these with the results obtained from our implementation of Spencer’s method in 3D.
2D Verification Examples
3D Verification Examples
We present four verification examples, where we are able to directly compare the results of 3D analyses carried out with TSLOPE, and results reported by others.
The first example involves a planar slope at a grade of 1:2 with a homogeneous frictionless cohesive soil, and a spherical sliding surface.
The second example is a 60 degree slope with strength determined by friction and cohesion. Solutions have been obtained for logarithmic spiral and ellipsoidal sliding surfaces.
The third example is a slope analysed both with, and without, a weak layer, and both with, and without pore pressures in the slope.
The fourth example comprises an idealised truncated cone, or “idealised hill”.
For references click here