Vipingo quarry in Kilifi county, Kenya, is one of the quarries supplying coral limestone for manufacturing coastal region. Due to its close proximity Indian ocean, semidiurnal ocean tides tend have an influence on stability slopes adjacent shoreline. Finite element numerical analysis using generalized Hoek–Brown criterion conducted assess condition followed by slope-angle optimization determine...

To improve the stability of sloping farmland, optimum ratio for parameter composite soils was determined. Plain and mixed were prepared with three improved materials glutinous rice glue, wood fibres coarse sand laboratory to tests experiments. For different moisture soil contents, shear strength, cohesion internal friction angle analysed proportions adjusted based on suitability plant growth. S...

The determination of the acceptable slope angle for open pits is a key aspect of the mineral business, as it implies seeking the optimum balance between the additional economic benefits gained from having steeper slopes, and the additional risks resulting from the consequent reduced stability of the pit slopes. The difficulty in determining the acceptable slope angle is related to geological un...

This paper presents the results of a series of small-scale model tests and numerical analyses conducted on circular and ring model footings located near geogrid reinforced sand slopes. Layers of geogrid were used as reinforcement. For numerical analyses Finite Element Method (FEM) was used. The effects of reinforcement depth, size, number of layers, and the horizontal distance between reinforce...

slope instability due to landslides is particularly common in iran. it is possible to fight against these hazards thanks to the roots of trees, which provide an important contribu-tion towards the stability of hillslopes. however, our knowledge of the effectiveness of roots for slope stability needs improvement. therefore this study was carried out on the effect of tree roots on slope stability...

1. Introduction Slopes in quarries and open pit mines, as well as all the types of embankments (stockpiles, tailing dams, waste dumps) resulting from mining and mineral processing activities, must be considered as "geotechnical structures". Therefore, the design and implementation of these structures must be conducted with all consideration. Considering an economical plan, the selection of reas...

a superhydrophobic aluminum surface was fabricated through an enhanced low-cost approach and the effects of several relevant factors on static contact angle and sliding angle were investigated. first, the operating parameters including the etching time as well as the reaction time and temperature were varied. next, the so-called chemical factors including three different fatty acids and five di...

PURPOSE The purpose of this study is to evaluate the effect of change in tibial posterior slope on contact force and ligament stress using finite element analysis. MATERIALS AND METHODS A 3-dimensional finite element model for total knee arthroplasty was developed by using a computed tomography scan. For validation, the tibial translations were compared with previous studies. The finite eleme...