A Boundary Element Method (BEM) approach was developed for the analysis of pile groups. The proposed method includes: the non-linear behavior of the soil by a hyperbolic modulus reduction curve; the non-linear response of reinforced concrete pile sections, also taking into account the influence of tension stiffening; the influence of suction by increasing the stiffness of shallow portions of so...

1 Pedro Lamas, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, [email protected] Abstract The Bologna Process assigns new challenges in higher education and in geotechnical engineering courses in particular. The ECTS (European Credit Transfer System), based on the student workload required to achieve the objectives of a program study, implies reduction of contact hours between tea...

High transportation demand has led to widening of existing roadways to improve traffic flow. In some cases, the space available on site is limited and the construction of earth retaining walls is done in front of previously stabilized walls. This can lead to retaining wall designs that are narrower than those addressed in current design guidelines. Narrow walls are Mechanically Stabilized Earth...

For embankment slope stability, soil cohesivity is one of the most important shear strength parameters. The effect cohesiveness on stability a homogeneous dam under rapid drawdown loading conditions was examined in this study. With use numerical modeling GeoStudio, different situations were explored based (0 kN/m2, 5 10 and 15 kN/m2) 1 m per day rate. factor safety value obtained from long-term...

Piping akibat erosi internal dapat menyebabkan kegagalan struktur pada bendungan urugan. Pembentukan piping yang dimulai bagian hilir kaki dipengaruhi oleh gradien kritis material (Ic) dan hidrolik keluaran (Ie). Nilai perbandingan kedua parameter tersebut apabila melampaui batas tertentu memicu terbentuknya piping. Selain itu, untuk mengurangi risiko maka debit rembesan diizinkan adalah tidak ...

Abstract Internal erosion is susceptible to occur in conditions where there are cracks or pre-formed cavities at the interface between dam foundation and embankment. The initiation of internal related critical gradient ( I c ) hydraulic xy a certain position. addition repair materials improvement will change total head, especially on foundation, so value also simultaneously from upstream downst...

Dams and ponds as engineering structures pose various risks during design, construction operation. Deformation in dams, slope stability problems or excessive pore pressure can cause serious damage that cannot be prevented. It is critical to position these areas correctly evaluate the potential quantitatively. In rockfill work needs done planning project phase, especially on infiltration safety....

Purpose. The purpose of study is a predictive assessment stress-strain state the "DTEK Ladyzhynska TPP" ash dump and changes in hydrodynamic hydrogeochemical modes within its location area conditions designed reconstruction. methodology. Comprehensive around site defining hydrogeomechanical stability enclosing dams performed based on results numerical modeling groundwater flow transport, using ...

The study of the rainfall infiltration mechanism unsaturated soil has always been a hot issue in field geotechnical engineering. It is worth studying which parameters should be introduced to characterize characteristics calculation and analysis infiltration. In this paper, Fredlund–Xing model was quoted SEEP/W module Geostudio software, transient numerical under same duration T different intens...