Model Test Study on Dynamic Responses of Loess Slope by Dynamic Compaction

2010 ◽  
Author(s):  
Zhong Zhou ◽  
Bao-chen Liu ◽  
Xiao-li Yang
Keyword(s):  
Model Test ◽  
Dynamic Compaction ◽  
Dynamic Responses ◽  
Loess Slope ◽  
Test Study

Model Test Study on Vibration Transferring of Dynamic Compaction and the Measures of Reducing Vibration

2011 ◽  
Vol 368-373 ◽  
pp. 3121-3126 ◽  
Author(s):  
Qing Juan Meng ◽  
Wei Hua Ma ◽  
Jing Sheng Qiao
Keyword(s):  
Model Test ◽  
Vibration Isolation ◽  
Influence Factors ◽  
Dynamic Compaction ◽  
Vibration Acceleration ◽  
Horizontal Vibration ◽  
Filling Materials ◽  
Surrounding Environment ◽  
Test Study ◽  
Compaction Method

Dynamic compaction method was widely used in various engineering foundation reinforcement, the research of influence to surrounding environment from dynamic compaction and the measures of reducing vibration was not complete. In this paper, the decay laws of dynamic compaction vibration acceleration in horizontal direction was got through the model test, the attenuation formula of horizontal vibration acceleration was fitted, which provides theory basis for determining the influence scope of dynamic compaction; And the depth and filling materials two influence factors of vibration isolation ditch were researched by model tests, which provide important basises for the application of vibration isolation ditch.

scholarly journals Physical Model Test Study of the Relationship Between Loess Landslide and Rainfall

2015 ◽  
Vol 9 (1) ◽  
pp. 968-973
Author(s):  
Jiaming Han
Keyword(s):  
Moisture Content ◽  
Safety Factor ◽  
Model Test ◽  
Rainfall Intensity ◽  
Unit Weight ◽  
Loess Landslide ◽  
Rainfall Duration ◽  
Loess Slope ◽  
Test Study ◽  
The Relationship

Launching research has important theoretical and practical value on model test study of the relationship between loess landslide and rainfall. According to the monitoring data of model test of loess slope, formula expression of safety factor has been fitted on landslide. Firstly, the loess slope damage process was monitored at different rainfall intensity, rainfall duration through rainfall landslide model tests. Secondly, some parameters were determined by laboratory tests, such as loess unit weight, moisture content, shear strength. Thirdly, the relational expression was fitted between moisture and rainfall intensity, rainfall duration, cohesion, internal friction angle, unit weight. Finally, moisture content being an intermediate variable, the expression was got between landslide safety factor and rainfall intensity, rainfall duration.

Highway Subgrade Dynamic Response Model Test Study on Foundation-Broaden Dynamic Compaction Consolidation

2013 ◽  
Vol 353-356 ◽  
pp. 842-846 ◽  
Author(s):  
Xiang Hong Pan ◽  
Zhan Yong Yao ◽  
Kai Zhang ◽  
Zhuang Jin
Keyword(s):  
Model Test ◽  
Dynamic Pressure ◽  
Dynamic Compaction ◽  
Small Radius ◽  
Reinforcement Effect ◽  
Test Study ◽  
Key Points ◽  
Propagation Law ◽  
Vibration Impact ◽  
Road Widening

While widen the highway foundation, due to it is still unclear that the law of dynamic compaction vibration impact on the original subgrade and foundation structure , which restricts the use of dynamic compaction technology in the highway foundation-broaden project. In this paper, by using the dynamic compaction indoor model test, simulated the dynamic compaction road widening foundation works, monitored the vibration acceleration of the pavement and subgrade surface in the process of dynamic compaction vibration, analyzed the dynamic compaction vibration propagation law of the roadside foundation in the subgrade structure. At the same time, we made the vibration amplitude of the key points and the rammer subsoil dynamic pressure value as double assessment indicators. Besides, we analyzed the dynamic compaction vibration response of subgrade under different parameters, evaluated foundation reinforcement effect. With research, under the same tamping energy and in a certain range of rammer diameter and weight, we had better choose small radius rammer and the compaction process of heavier rammers dropping from lower point, which can reduce the foundation dynamic vibration of the old subgrade and ensure foundation reinforcement effect.

A Model Test Study on the Effect of the Stern Interceptor for the Reduction of the Resistance and Trim Angle for Wave-piercing Hulls

2015 ◽  
Vol 52 (6) ◽  
pp. 485-493 ◽  
Author(s):  
Dae Hyuk Kim ◽  
Inn-Duk Seo ◽  
Key-Pyo Rhee ◽  
Nakwan Kim ◽  
Jin-Hyung Ahn
Keyword(s):  
Model Test ◽  
Test Study
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