Abstract A comparative analysis of the solutions for seismic impact on a flexible retaining wall designed to strengthen construction excavation multi-storey building in Sofia has been performed. For this purpose, following FEM calculation models interaction with surrounding soil body were compiled: (1) 1D beam-column-spring model wall, including spring support its embedded length and pseudostat...

Retaining walls are geostructures providing permanent lateral support to vertical slopes of soil, and it is essential analyze the failure probability such a structure. To keep importance geotechnics on par with advancement in technology, implementation artificial intelligence techniques done for reliability analysis Designing structure based leads an economical design. Machine learning models u...

Abstract The highway section on the D3 Hričovské Podhradie – Žilina Strážov was carried out left branch of body overpass and right embankment body. stability ensured by a geosynthetics reinforced retaining wall. wall assembled from concrete prefabs, which uniaxial geogrids were attached. article presents numerical analysis deformations this structure in profile monitored geotechnical monitoring...

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...

A wall climbing robot using propulsive force of propeller has been developed for wall inspection use. Thrust force is inclined to wall side to make use of frictional force between wheels and wall surface, and the robot can move on a vertical wall safely. A long body with many wheels is considered to move on an irregular wall surface. A strong and turbulent wind is predicted on a wall of high ri...

Botryococcus braunii is a colonial green alga whose cells associate via a complex extracellular matrix (ECM) and produce prodigious amounts of liquid hydrocarbons that can be readily converted into conventional combustion engine fuels. We used quick-freeze deep-etch electron microscopy and biochemical/histochemical analysis to elucidate many new features of B. braunii cell/colony organization a...