It is well known that geomembranes frequently and easily fail at the seams, which has been a ubiquitous problem in various applications. To avoid failure of geomembrane photocuring was carried out with 1~5% photoinitiator 2% carbon black powder. This can be sprayed cured on soil surface. The obtained then used as barrier, separator, or reinforcement. In this study, direct shear tests were aim t...

Constant suction direct shear test enables the understanding of failure mechanism in rainfallinduced landslides. It can be conducted using a conventional apparatus with some modifications. The constant is carried out two stages. In first stage, unsaturated soil specimen consolidated to target net normal stress and matric then sheared second stage. Matric usually controlled axis-translation prin...

Solutions to the Boussinesq problem for the circular punch without axial symmetry can be obtained from corresponding axisymmetric solutions by parametric differentiation. The method is applied to the problem of the tilted fiat punch, originally solved by Green, and to the indentation of a cylindrical surface by a flat circular punch.