in this paper the factor of safety (fs) and critical line-segments slip surface obtained by the alternating variable local gradient (avlg) optimization method was presented as a new topic in 2d. results revealed that the percentage of reduction in the fs obtained by switching from a circular shape to line segments was higher with the avlg method than other methods. the 2d-avlg optimization meth...

ABSTRACT Soil erosion on slopes demands the use of techniques that promote soil cohesion, increasing its shear strength, while contributing to foristic-landscape recovery. This study aimed analyze morphological characteristics vetiver and paspalum grasses, in order understand their contribution stabilization, under greenhouse conditions. The following parameters were evaluated: plant height; nu...

We define a finite-state message-passing model using guarded commands. This model is particularly appropriate for defining and reasoning about self-stabilizing protocols, due to the well-known result that self-stabilizing protocols on unbounded-channel models must have infinitely many legitimate states. We argue that our model is more realistic than other models, and demonstrate its use with a ...

We have found that debris flows are the main process in forming two gullied crater slopes on Mars. We used 1 m/pix elevation models to derive three topographic indices: slope-area, CAD and DI-25. These indices allow the active slope processes to be identified by comparison to data from Earth analogues. We present data from Meteor Crater together with analogues previsouly presented by Conway et ...

Landslides along the Missouri and Kansas rivers will affect existing structures and potential development in the Kansas City metropolitan area. A pilot landslide-mapping project was conducted in the vicinity of Atchison, Kansas, to inventory existing landslides and determine the factors that caused them. Landslides are generally controlled by the slope morphology, geology, soils, and moisture c...

The objective of this research is to evaluate the stability natural slopes at inlet and outlet portals Bolangu Ulu diversion tunnel, Gorontalo. were considered stable, therefore slope analyses not carried out previously in tunnel portal design. using Circular Failure Chart (CFC) Limit Equilibrium Methods (LEM). Input data for obtained from field mapping laboratory testing soil rock samples. res...

Background: Stabilization of unstable slopes with relatively large reinforced concrete piles has been widely adopted over the past several decades. Small diameter steel have advantages as a slope reinforcement technique for an transmission tower where space and access restrictions that typically occur render alternate approaches unfeasible. Methods: In this study, numerical performance assessme...