Probabilistic FEM-Analysis for the Retaining Wall of a Deep Excavation at SLS

2021 ◽  
pp. 577-590
Author(s):  
Alexandra Ene ◽  
Timo Schweckendiek ◽  
Horatiu Popa
Keyword(s):  
Retaining Wall ◽  
Fem Analysis ◽  
Deep Excavation

FEM Analysis on Tensile Force of Geosynthetic Reinforcement Arranged in GRS-RW Considering Variable Loading Rate

2012 ◽  
Vol 188 ◽  
pp. 60-65
Author(s):  
Fu Lin Li ◽  
Fang Le Peng
Keyword(s):  
Finite Element ◽  
Loading Rate ◽  
Retaining Wall ◽  
Tensile Force ◽  
Fem Analysis ◽  
Reinforced Soil ◽  
Geosynthetic Reinforcement ◽  
Geosynthetic Reinforced Soil ◽  
Rate Dependent ◽  
Dependent Behavior

The combined effects of the rate-dependent behavior of both the backfill soil and the geosynthetic reinforcement have been investigated, which should be attributed to the viscous property of material. A nonlinear finite element method (FEM) analysis procedure based on the Dynamic Relaxation method was developed for the geosynthetic-reinforced soil retaining wall (GRS-RW). In the numerical analysis, both the viscous properties of the backfill and the reinforcement were considered through the unified nonlinear three-component elastic-viscoplastic model. The FEM procedure was validated against a physical model test on geosynthetic-reinforced soil retaining wall with granular backfill. Extensive finite-element analyses were carried out to investigate the tensile force distributions in geosynthetic reinforcement of geosynthetic-reinforced soil retaining wall under the change of loading rate. It is found from the analyses that the presented FEM can well simulate the rate-dependent behavior of geosynthetic-reinforced soil retaining wall and the tensile force of geosynthetic reinforcement arranged in retaining wall.

Back analysis of an embedded retaining wall for a deep excavation in Bucharest

ce/papers ◽  
2018 ◽  
Vol 2 (2-3) ◽  
pp. 743-748
Author(s):  
Horatiu POPA ◽  
Alexandra ENE ◽  
Roxana MIRITOIU ◽  
Ionela IONESCU ◽  
Dragos MARCU
Keyword(s):  
Retaining Wall ◽  
Back Analysis ◽  
Deep Excavation

scholarly journals The stability of the Corrugated Concrete Sheet Pile (CCSP) of the Soil Retaining Wall at the Abutmen Bridge Bh 1751 in Lok Ulo District, Kebumen

2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Septiana Widi Astuti ◽  
Ayu Prativi
Keyword(s):  
Rolling Force ◽  
Retaining Wall ◽  
Earth Pressure ◽  
Deep Excavation ◽  
Safety Requirements ◽  
Lateral Earth Pressure ◽  
Bridge Abutment ◽  
Excavation Work ◽  
The Stability ◽  
Flexible Retaining Wall

Abutment bridge is a building under the bridge located on both sides of the bridge end. The process of building a bridge abutment often requires excavation to the depth of the abutment base so that the abutment reinforcement and casting work can be carried out. In deep excavation work, each side of the excavation needs to be installed in a flexible retaining wall type (plaster) first. In this study, CCSP stability analysis was carried out on earth excavation work for abutment bridge BH 1751. The calculation method starts from determining the lateral earth pressure acting on the soil, then determining the depth of CCSP planting that is able to produce CCSP stability on the rolling force. The analysis shows that the depth of CCSP planting that meets the safety requirements of the rolling force is 20 m

scholarly journals INFLUENCE OF DISTANCE BETWEEN A RETAINING WALL AND THE EXISTING BUILDING ON STRESS-STRAIN STATE OF THE SYSTEM «RETAINING STRUCTURES – SOIL MASSIF»

2017 ◽  
Vol 2 (49) ◽  
pp. 159-170
Author(s):  
V. V. Ruchkivskyi
Keyword(s):  
Slip Surface ◽  
Mutual Influence ◽  
Retaining Wall ◽  
Retaining Walls ◽  
Deep Excavation ◽  
Existing Building ◽  
Geological Conditions ◽  
Geotechnical Problem ◽  
Solid Soil ◽  
Protective Structures

The results of work research of engineering protective structures in a densely built–up area with difficult engineering–geological conditions have been presented. The modeling of the geotechnical problem of deep excavation protection using a three-tier retaining wall has been performed.  The task of mutual influence of existing building and deep excavation with the change of distance between them is solved. The grafs of displacement’s dependence several tiers of retaining walls from the distance to an existing building have been presented. According to these data, a plot of the dependence of displacements of separate tiers of retaining walls from the distance to an existing building is constructed. The problem is solved by the finite element method using a nonlinear model of a solid soil environment. The character of the formation of zones of potential slip surface slope is revealed. The dependence of bending moments of the retaining walls from the distance to the existing building is shown. A safe location of an existing building to a deep excavation has been substinated.

Case study on the influence of soft clay addressing continuously retaining wall in deep excavation

2017 ◽  
pp. 419-422
Author(s):  
M.T. Liang ◽  
C.F. Hsiao ◽  
K.Y. Chang ◽  
L.C. Chuang ◽  
J.C. Chang
Keyword(s):  
Retaining Wall ◽  
Soft Clay ◽  
Deep Excavation

Analysis on Deep Excavation in Soft Soil Located on Sloped Bedrock

2012 ◽  
Vol 170-173 ◽  
pp. 13-19
Author(s):  
Shong Loong Chen ◽  
Cheng Tao Ho
Keyword(s):  
Lateral Displacement ◽  
Retaining Wall ◽  
Soft Soil ◽  
Soft Clay ◽  
Observation Data ◽  
Clay Layer ◽  
Deep Excavation ◽  
Element Analysis ◽  
2D Strain ◽  
Significant Difference

Deep excavations in soft-clay layer on sloped bedrock often leads to lateral displacement on retaining structures and uneven settlement due to unbalanced pressure generated from excavation. A construction project for which an excavation was complete in soft clay layer on sloped bedrock in Taipei City was adopted in the study. It is learned from the observation logs of the studied case that a significant difference exists in the lateral displacement of diaphragm wall and settlement between up and down-slope sides of sloped bedrock. Deep excavation is in fact profoundly complicated interaction between excavation strutting and soil. In general practice, the design of excavation is frequently simplified as a 2D strain behavior. However, the actual excavation on sloped bedrock is quite different from 1D or 2D simulation in a symmetric manner. Therefore, 2D finite element analysis program, PLAXIS, is introduced for the analysis on the behaviors of soil clay layer on sloped bedrock in excavation. The result is compared with onsite observation data, including displacement of retaining wall, settlement, axial loads of struts and others. The result of retaining wall displacement analysis is found consistent with the trend derived from onsite observation, which is possible for reference of similar engineering analyses and designs in the future.

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