Laboratory Model Tests for a Strip Footing Supported on Geocell Reinforced Sand Bed

2010 ◽  
Author(s):  
S. N. Moghaddas Tafreshi ◽  
A. R. Dawson
Keyword(s):  
Model Tests ◽  
Strip Footing ◽  
Laboratory Model ◽  
Reinforced Sand

Behaviour of geocell-reinforced sand beds under strip loading

2007 ◽  
Vol 44 (7) ◽  
pp. 905-916 ◽  
Author(s):  
Sujit Kumar Dash ◽  
K Rajagopal ◽  
N R Krishnaswamy
Keyword(s):  
Composite Beam ◽  
Model Tests ◽  
Soil Reinforcement ◽  
Laboratory Model ◽  
Strain Variation ◽  
Reinforced Sand ◽  
Subgrade Soil ◽  
Strip Loading ◽  
Geocell Reinforcement ◽  
Sand Beds

A series of laboratory model tests have been performed to study the behaviour of geocell-reinforced sand beds under strip loading. The strain in geocell walls, pressure transmitted to the subgrade soil, and deformations in the subgrade were measured during the tests to develop an understanding of the mechanism of geocell reinforcement. The pattern of strain variation in the geocell walls indicates that the geocell mattress behaves as a composite beam supported by the subgrade soil. The load dispersion in the geocell mattress is found to be governed by factors such as geometry of the geocell layer and its placement position under the footing.Key words: soil reinforcement, geocell, sand, behaviour, strip loading.

Laboratory model tests about the sand embankment supported by piles with a cap beam

2017 ◽  
Vol 13 (1) ◽  
pp. 64-76 ◽  
Author(s):  
Zhen-Dong Cui ◽  
Qiang Yuan ◽  
Jia-Qiang Yang
Keyword(s):  
Model Tests ◽  
Laboratory Model

Bearing Capacity of an Eccentrically Loaded Strip Footing on Reinforced Sand Slope

2019 ◽  
Vol 56 (4) ◽  
pp. 232-238
Author(s):  
A. Abdi ◽  
K. Abbeche ◽  
B. Mazouz ◽  
R. Boufarh
Keyword(s):  
Bearing Capacity ◽  
Strip Footing ◽  
Reinforced Sand

scholarly journals The Past and Present of Discharge Capacity Modeling for Spillways—A Swedish Perspective

Fluids ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 10 ◽  
Author(s):  
James Yang ◽  
Patrik Andreasson ◽  
Penghua Teng ◽  
Qiancheng Xie
Keyword(s):  
Discharge Capacity ◽  
Best Practice ◽  
Primary Source ◽  
Hydraulic Modeling ◽  
Model Tests ◽  
Laboratory Model ◽  
Model Quality ◽  
Cfd Simulations ◽  
Discharge Data ◽  
The Past

Most of the hydropower dams in Sweden were built before 1980. The present dam-safety guidelines have resulted in higher design floods than their spillway discharge capacity and the need for structural upgrades. This has led to renewed laboratory model tests. For some dams, even computational fluid dynamics (CFD) simulations are performed. This provides the possibility to compare the spillway discharge data between the model tests performed a few decades apart. The paper presents the hydropower development, the needs for the ongoing dam rehabilitations and the history of physical hydraulic modeling in Sweden. More than 20 spillways, both surface and bottom types, are analyzed to evaluate their discharge modeling accuracy. The past and present model tests are compared with each other and with the CFD results if available. Discrepancies do exist in the discharges between the model tests made a few decades apart. The differences fall within the range −8.3%–+11.2%. The reasons for the discrepancies are sought from several aspects. The primary source of the errors is seemingly the model construction quality and flow measurement method. The machine milling technique and 3D printing reduce the source of construction errors and improve the model quality. Results of the CFD simulations differ, at the maximum, by 3.8% from the physical tests. They are conducted without knowledge of the physical model results in advance. Following the best practice guidelines, CFD should generate results of decent accuracy for discharge prediction.

scholarly journals Reinforcing effects of geogrid reinforced sand in large scale model tests.

1999 ◽  
pp. 135-144
Author(s):  
Takaya HIGUCHI ◽  
Hisashi AOKI ◽  
Kenji ISHIHARA ◽  
Yoshimichi TSUKAMOTO ◽  
Takayuki MASUO
Keyword(s):  
Large Scale ◽  
Model Tests ◽  
Scale Model ◽  
Reinforced Sand ◽  
Large Scale Model ◽  
Reinforcing Effects

Basic Study on Mechanism of Cave-in in Road through Laboratory Model Tests

2016 ◽  
Vol 18 (5) ◽  
pp. 11-19 ◽  
Author(s):  
Gichul Kweon ◽  
Sanglok Kim ◽  
Seokwoo Hong
Keyword(s):  
Model Tests ◽  
Laboratory Model ◽  
Basic Study
Sign in / Sign up

Export Citation Format

Share Document