Three centrifuge model tests were conducted on geosynthetic-reinforced pile-supported (GRPS) embankments with side slopes to investigate the influence of pile end-bearing conditions and modulus their performance. This study found that when piles used, differential settlement occurred at base embankment majority load was transferred piles. Floating piles, however, behaved as rigid inclusions formed a composite foundation surrounding soil, which shared total under an approximately equal-strain...

Numerous offshore wind turbines (OWTs) with bucket foundations have been installed in seismic regions. Compared to the relative development of monopiles (widely installed), design guidelines for bucket-supported OWTs still need be developed. Moreover, scour around induced by water–current actions also creates more challenges OWTs. In this study, a simplified analysis method is proposed that incorporates soil–structure interaction (SSI) preliminary scoured OWTs, aiming balance accuracy and...

With the development of offshore wind industry in China, amount turbines has increased rapidly. Large-diameter steel monopile foundations have been widely adopted China with lots marine clay located. However, conventional bearing capacity prediction from American Petroleum Institute (API) based on small-diameter flexible pile field test is inaccurate rigid mechanism large-diameter causing economically loss. The piezocone penetration (CPTU) a common situ to exactly acquire soil parameters....

The purpose of this study is to assess effects two different simulation methods (i.e., interfaces with a single spring-slider system and double systems) for interactions between reinforcement the surrounding medium on performances geosynthetic-reinforced soil (GRS) structures when conducting numerical analyses. fundamental difference these number systems used connect nodes structural elements simulating geosynthetic points solid grids medium. Numerical results pull-out tests show that both...

Geosynthetics have been widely used in the construction of reinforced soil structures and yet reinforcing mechanisms geosynthetics not fully understood. Eight biaxial compression model tests geosynthetic-reinforced (GRS) were conducted this study under a plane strain condition to investigate geosynthetics. Membrane was as reinforcement material aluminum rods simulate granular backfill soil. Three influencing factors considered including spacing, stiffness, gradation This also numerical...

A special device was designed, manufactured, and used to create a three-dimensional (3D) layout of rigid supports investigate the spatial tensile behavior geosynthetic reinforcement material over supports. polyester (PET) sheet simulate material. The results from model tests using this were evaluate distribution tension deformed shape simulated couple analytical solutions currently available in literature selected for comparison calculated deflections with measured data. This study found...

This paper focuses on investigation of the effects presence a bearing bed and reinforced soil foundation (RSF), vertical reinforcement spacing stiffness, subgrade compressibility design components, including lateral displacement facing, maximum tension in (Tmax), connection strength (To), differential settlement structures with woven geotextile. The was conducted through numerical simulation using finite element program Plaxis 2D under plain strain condition. results from analyses showed...

Many offshore wind turbine (OWT) foundations are situated in earthquake-prone areas, where complex environmental loads intensified the seismic responses of OWTs. In response to this situation, composite bucket is proposed and extensively applied due its reliable installation high resistance. To analyze subjected loads, refined numerical models 6.45 MW OWT system established, parametric analyses conducted, considering influence frequency contents intensities, soil layer distributions...

Five spring-based trapdoor tests allowing continuous displacement during both fill placement and localised static loading were conducted. Quartz sand was used as the test fill. Biaxial geogrids with without ribs, having two different reinforcement stiffnesses, materials. Test results show that when low-stiffness geogrid layers used, higher spacing ratios (defined ratio of between to width) induced more stable efficient load transfer generally. Consequently, an optimum value 0.3 a worst-case...

This study conducted plane-strain scaled model tests to investigate the deformation characteristics of geosynthetic reinforced soil (GRS) abutments subjected vertical loads. Setback distance, i.e., distance between back abutment facing and front loading plate, was chosen as investigated influencing factor since it is one most frequently used variables by engineers for design GRS abutments. analyzed settlements at top abutment, lateral displacements facing, volumetric deformations under...

Abstract Geosynthetics reinforced soil (GRS) abutment has been widely used in the construction of small to medium single-span bridges and shows good service performance engineering projects. Vertical stress distribution plays an important role for design GRS abutments. Three centrifugal model tests abutments were carried out investigate vertical underneath centreline beam seat, considering setback distance (i.e., from seat inner facing) width as influencing factors. Test results indicated...