Numerical simulation of a jointed rock block mechanical behavior adjacent to an underground excavation and comparison with physical model test results

2015 ◽  
Vol 50 ◽  
pp. 129-142 ◽  
Author(s):  
Xuxu Yang ◽  
P.H.S.W. Kulatilake ◽  
Hongwen Jing ◽  
Shengqi Yang
Keyword(s):  
Numerical Simulation ◽  
Mechanical Behavior ◽  
Physical Model ◽  
Model Test ◽  
Jointed Rock ◽  
Rock Block ◽  
Physical Model Test ◽  
Underground Excavation ◽  
Test Results

scholarly journals WAVE RUN-UP PREDICTION VS. MODEL TEST RESULTS: A COMPARISON

1988 ◽  
Vol 1 (21) ◽  
pp. 47 ◽  
Author(s):  
Peter E. Gadd ◽  
Victor Manikian ◽  
Jerry L. Machemehl
Keyword(s):  
Physical Model ◽  
Model Test ◽  
Large Scale ◽  
Physical Model Test ◽  
Roughness Coefficient ◽  
Wave Steepness ◽  
Test Results ◽  
Shore Protection ◽  
Run Up

Large-scale physical model test measurements of wave run-up are compared with wave run-up prediction derived from the Shore Protection Manual (SPM). Noteworthy discrepancies between the results of these two methods have been identified that include substantial overestimation of wave run-up elevations using the SPM approach, and computation of roughness coefficient values that vary as a function of wave steepness. The slope armors tested in the study at model scales of 1:3 and 1:4 include linked concrete matting and overlapped gravel-filled fabric bags.

Physical and numerical tests of the excavation walls in jointed rock masses

2014 ◽  
Vol 51 (5) ◽  
pp. 554-569 ◽  
Author(s):  
Moorak Son ◽  
Jaehyun Park
Keyword(s):  
Physical Model ◽  
Model Test ◽  
Earth Pressure ◽  
Jointed Rock ◽  
Physical Model Test ◽  
Rock Masses ◽  
Jointed Rock Masses ◽  
Rock Types ◽  
Joint Characteristics ◽  
Parametric Studies

This paper examines the magnitude and distribution of earth pressure on the support systems of open cuts in jointed rock masses. A physical model test was carried out using concrete blocks with man-made joints to represent a jointed rock mass. The model test was simulated numerically to provide a justifiable basis for extended numerical parametric studies. This study focused on the overall procedures of the physical model test, its numerical simulation, and extended numerical parametric studies. A comparison of the results from both the physical model test and numerical simulation confirmed that the applied numerical approach and methodology were suitable for further extended numerical parametric studies. The controlled parameters were the different rock types and joint characteristics including joint shear condition, joint spacing, and joint inclination angle. Results of the earth pressures from the numerical parametric tests in jointed rock masses were compared with Peck’s empirical earth pressure for soil ground. The comparison showed that the earth pressure in jointed rock masses can be very different from that in the soil ground. Accordingly, the effect of the rock types and joint characteristics needs to be considered when designing excavation support systems in jointed rock masses.

Hydraulic Model and Numerical Simulation Study of Shuangwangcheng Pump Station

2011 ◽  
Vol 117-119 ◽  
pp. 647-651
Author(s):  
Chuan Qi Li ◽  
Wei Wang ◽  
Jie Gong ◽  
Xin Lai Zhao
Keyword(s):  
Numerical Simulation ◽  
Physical Model ◽  
Model Test ◽  
Hydraulic Model ◽  
Physical Model Test ◽  
Flow Conditions ◽  
Scheme Design ◽  
Model Studies ◽  
Pump Station ◽  
Good Agreement

Physical and numerical model studies were performed in order to study the flow conditions for the proposed pump station of Shuangwangcheng reservoir, Shouguang Ctiy. The flow velocity and the pressure distribution in the bidirectional culvert of Shuangwangcheng Pump Station had been obtained by hydraulic model test and numerical simulation. The physical model was constructed to a Froude scale of 1:20. A general conclusion was that, the computed results were good agreement with the data measured in physical model, and could be good complement for physical model test. Furthermore, negative pressure existing in discharge steep culvert in the initial scheme design was eliminated by moving the culvert controlling gate to the end of culvert in the modified scheme, and the flow conditions was improved.

Study of Hydrodynamic Characteristics of the Sloping Breakwater of Circular Protective Facing

2012 ◽  
Vol 588-589 ◽  
pp. 1781-1785
Author(s):  
Li Ping Zhao ◽  
Jian Qiu Zhang ◽  
Lei Chen ◽  
Xuan Xie ◽  
Jun Qiang Cheng
Keyword(s):  
Numerical Simulation ◽  
Physical Model ◽  
Model Test ◽  
Simulation Analysis ◽  
Wave Action ◽  
Hydrodynamic Characteristics ◽  
Physical Model Test ◽  
Current Field

Studying the hydrodynamic characteristics of the sloping breakwater of circular protective facing by physical model test and taking a numerical simulation analysis of current field around the circular protective facing with holes under wave action by FLOW—3D.

scholarly journals Physical model test and numerical simulation on the failure mechanism of the roadway in layered soft rocks

2021 ◽  
Vol 31 (2) ◽  
pp. 291-302
Author(s):  
Xiaoming Sun ◽  
Chengwei Zhao ◽  
Yong Zhang ◽  
Feng Chen ◽  
Shangkun Zhang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Physical Model ◽  
Failure Mechanism ◽  
Model Test ◽  
Physical Model Test ◽  
Soft Rocks
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