Dissertation > Excellent graduate degree dissertation topics show

Experimental Research on Liquefaction of Sands in Liaoxi Aeolian Area

Author: WangXiaoHua
Tutor: ZhangXiangDong
School: Liaoning Technical University
Course: Geotechnical Engineering
Keywords: Aeolian sand Soil liquefaction Dynamic triaxial apparatus Dynamic pore water pressure MIDAS/GTS
CLC: TU441.4
Type: Master's thesis
Year: 2009
Downloads: 35
Quote: 0
Read: Download Dissertation

Abstract


This article analyzes factors influencing the anti-liquefaction strength of aeolian sandy soil such as consolidation ratio, confining pressure, density and fine-grained content by using the Western Liaoning aeolian sand as the study objective, through the DDS-70 dynamic triaxial apparatus carried out experimental study on seismic liquefaction for the aeolian sand. According to dynamic triaxial test results, this paper discusses the impact of sand dynamic pore pressure development model through the different content on dry density and fine-grained. In the case of pressure equalizing and consolidation, dynamic pore pressure development model is consistent with the curve shape that H.B.Seed, Zhang Jianmin and Xie dingyi suggested. In the case of pressure bias and consolidation, dynamic pore pressure development model can be simulate by hyperbolic model. Experimental results show that the density, fine-grained content and so on will have a certain influence on the role of pore pressure increase.This paper also simulates the dynamic analysis of railway moving load by ANSYS and then analyze the dynamic interaction characteristics of roads and foundation under moving loads, studied the deformation characteristics of the roads under moving loads.The results showed that the dynamic deformation and dynamic stress of the surface of the base-bed show an increasing trend. Dynamic displacement of the lower surface of the base bed also show an increasing trend, but it has little effect.

Related Dissertations

  1. Investigations on the Formation and Evolution of Aeolian Sand Ripples,O347.7
  2. Investigation of Mud Flow Mechanism in Mines and Numerical Simulation under Coupled Solid-liquid Theory,TD163
  3. Theoretic Study on Room Mining with Backstowing in Yubujie Coal Mine,TD823.7
  4. Research about the Mechanical Properties of Mu Us Desert Aeolian Sand Foundation,U416.1
  5. Study on the Aeolian Sand Compaction Experiment of Impact Vibratory Roller Model,U416.1
  6. Study on the Engineering Characteristics of Eolian Sand in Mu US Desert,X171
  7. The Safe Mining Methods Selection and Parameter Optimization under Water,TD823.83
  8. Study on Antiseismic Design Method and Antiseismic Measures of Tailings Dam,TV649
  9. Study on the Effects of Soil Liquefaction Induced Lateral Spreading on Pile Foundation,TU473
  10. Research on Earthquake Induced Liquefaction and Lateral Displacement of Submarine Soil Layer in Near Fault Area,P751
  11. Research on the Performance of Aeolian Sand and Application for the Road in Saline Area,U416.1
  12. Aeolian sand compaction mechanism and road carrying capacity,U416.1
  13. Experimental Study on Size Effect of Sandy-gravel Material Subjected to Cyclic Loading,TV42
  14. Research on Estimation of Soil Liquefaction under Fuzzy Mathematics,TU435
  15. Study on Floatation Response of Buried Pipeline Induced by Soil Liquefaction,TU435
  16. The Study of Coal Gangue and Fly Ash as the Filling of Roadbed,U416.1
  17. The Study and Test on Dynamic Properties of Recently Deposited Soils and Vibratory Liquefaction of Sands in Area of Nanjing and Its Neighbor,TU441
  18. Aeolian sand as the material of the pavement structure,U414
  19. Xinjiang aeolian sand mechanical properties and dynamic performance study,U416.1
  20. Inorganic binder stabilized aeolian sand road performance,U414

CLC: > Industrial Technology > Building Science > Soil mechanics,foundation engineering > Various types of soil and foundation > Adhesion ( cohesive ) soil and foundation > Sand and ground stress
© 2012 www.DissertationTopic.Net  Mobile