Development of a trench cutting re-mixing deep wall method model test device

2020 ◽  
Vol 99 ◽  
pp. 103385
Author(s):  
Peng Jiang ◽  
Qing-song Zhang ◽  
Ren-tai Liu ◽  
Adam Bezuijen ◽  
Yan-kai Liu ◽  
...  
Keyword(s):  
Model Test ◽  
Test Device ◽  
Method Model ◽  
Wall Method

scholarly journals Model Test on Mechanical and Deformation Property of a Geomembrane Surface Barrier for a High Rockfill Dam

2021 ◽  
Vol 11 (23) ◽  
pp. 11505
Author(s):  
Haimin Wu ◽  
Luming Feng ◽  
Zhaoming Teng ◽  
Yiming Shu
Keyword(s):  
Model Test ◽  
Deformation Property ◽  
Water Pressure ◽  
Surface Barrier ◽  
Structure Model ◽  
Test Device ◽  
Interaction Mode ◽  
Rockfill Dam ◽  
Sensor Monitoring ◽  
High Rockfill Dam

The cushion of a geomembrane surface barrier of a high rockfill dam built on deep overburden is prone to crack and fail because of excessive flexural deformation. This study proposes a geomembrane surface barrier for a high rockfill dam on deep overburden. The proposed geomembrane surface barrier uses polyurethane bonded aggregates as the cushion material. The loading and deformation performance of the barrier system under uniform water pressure was investigated using a self-developed structure model test device. The mechanical and deformation property of each layer of the barrier, and the interaction mode between adjacent layers, were obtained through external videos and internal sensor monitoring. The results demonstrated that the polyurethane bonded aggregate cushion exhibited good adaptability to flexural deformation during the entire loading process and maintained good contact and coordinate deformation with the upper protective and the lower transition layers. The geomembrane surface barrier created using polyurethane bonded aggregates as the cushion material can adapt to the flexural deformation of a high rockfill dam surface on deep overburden.

scholarly journals Development of a lever type multi-functional plane strain model test device

2019 ◽  
Vol 384 ◽  
pp. 012102
Author(s):  
Jianguang Li ◽  
Gengyu Sun ◽  
Zhuoqun Yu ◽  
Huisong Zou
Keyword(s):  
Plane Strain ◽  
Model Test ◽  
Test Device ◽  
Strain Model ◽  
Plane Strain Model

Experiment Study of the Uplift Mechanism of Disk Piles

2011 ◽  
Vol 250-253 ◽  
pp. 1578-1581
Author(s):  
Chen Yuan Lu ◽  
Shu Na Lai ◽  
Fan Li Meng
Keyword(s):  
Bearing Capacity ◽  
Model Test ◽  
Deformation Behavior ◽  
Equivalent Diameter ◽  
Experiment Study ◽  
Test Device ◽  
Single Disk ◽  
Loading Tests ◽  
Mechanism Theory ◽  
Better Than

Based on the analysis of the uplift mechanism theory of the disk piles, a model test device was designed to study the uplift bearing capacity and deformation behavior of the disk piles and to compare with the equivalent diameter piles. Uplift loading tests were carried out on the equivalent diameter pile, the single-disk pile and the double- disk pile respectively. Through the test, it was proved that the uplift bearing capacity of the disk piles was much better than the equivalent diameter pile. The bearing capacity of the single-disk piles was better than the double-disk piles in the test. This was mainly related to the embedded depth of the upper disk was not enough and the specific failure mode. So, a reasonable design was necessary.

Effect of Stress and Relax Instructions on the Predictive Validity of a Test Device

1974 ◽  
Vol 7 (1) ◽  
pp. 46-50 ◽  
Author(s):  
Bruce W. Hall ◽  
T. Salvatore Tocco ◽  
Larry S. Schwartz
Keyword(s):  
Predictive Validity ◽  
Test Device

Hydraulic Model Test of Stability of Amenity-Oriented Breakwater

1999 ◽  
Author(s):  
Shoji Kunitomi ◽  
Hajime Mase ◽  
Tomotsuka Takayama
Keyword(s):  
Model Test ◽  
Hydraulic Model

Model Test on Grouting Diffusion in Water-Rich Sand

IACGE 2018 ◽  
2019 ◽  
Author(s):  
Tao Liu ◽  
San-peng Li ◽  
Hai-lei Kou ◽  
Peng Yu ◽  
Zhong-nian Yang
Keyword(s):  
Model Test

Theoretical, methodological and practical issues of choice models

2018 ◽  
Vol 1 (1) ◽  
pp. 21-37
Author(s):  
Bharat P. Bhatta
Keyword(s):  
Discrete Choice ◽  
Model Building ◽  
Estimation Method ◽  
Choice Models ◽  
Discrete Choice Models ◽  
Decision Makers ◽  
Model Formulation ◽  
Random Utility Maximization ◽  
The Relationship ◽  
Method Model

This paper analyzes and synthesizes the fundamentals of discrete choice models. This paper alsodiscusses the basic concept and theory underlying the econometrics of discrete choice, specific choicemodels, estimation method, model building and tests, and applications of discrete choice models. Thiswork highlights the relationship between economic theory and discrete choice models: how economictheory contributes to choice modeling and vice versa. Keywords: Discrete choice models; Random utility maximization; Decision makers; Utility function;Model formulation

Backscattering Analysis of Cylinder Shaped Scatterer in Vegetation Medium: Comparison Between Theories

2020 ◽  
Vol 2 (1) ◽  
pp. 15-18
Author(s):  
Syabeela Syahali ◽  
Ewe Hong Tat ◽  
Gobi Vetharatnam ◽  
Li-Jun Jiang ◽  
Hamsalekha A Kumaresan
Keyword(s):  
Numerical Solution ◽  
Cross Section ◽  
Traditional Method ◽  
Microwave Remote Sensing ◽  
Solution Model ◽  
Complex Nature ◽  
Good Match ◽  
Equivalent Source ◽  
Backscattering Cross Section ◽  
Method Model

This paper analyses the backscattering cross section of a cylinder both using traditional method model and a new numerical solution model, namely Relaxed Hierarchical Equivalent Source Algorithm (RHESA). The purpose of this study is to investigate the prospect of incorporating numerical solution model into volume scattering calculation, to be applied into microwave remote sensing in vegetation area. Results show a good match, suggesting that RHESA may be suitable to be used to model the more complex nature of vegetation medium.

Development Path of Anthropomorphic Test Device with Chinese Physical Signs

2019 ◽  
Vol 21 (3) ◽  
pp. 103
Author(s):  
Zhixin Liu ◽  
Yongqiang Wu ◽  
Weijie Ma
Keyword(s):  
Test Device ◽  
Development Path
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