Dissertation > Excellent graduate degree dissertation topics show

The Study on the Numerical Simulation of Differential Settlement on Soft Soil Foundation

Author: ZhangYong
Tutor: XiaoRenCheng
School: Nanhua University
Course: Structural Engineering
Keywords: Soft soil Differential settlement Model test ABQAUS Numericalsimulation
CLC: TU433
Type: Master's thesis
Year: 2008
Downloads: 244
Quote: 4
Read: Download Dissertation

Abstract


In this paper, the state of the art of differential settlement of soft soil foundationis studied, and the critical engineering of differential settlement of soft soil foundationin Guangxi is modeled by test in situ and finite element software ABAQUS.Differential settlement of soft clay foundation and its computational method issummarized. In the 3D numerical simulation of soft soil, its settlement could besimulated well by using the constitutive model Mohr-Coulomb, while in the 2Dnumerical simulation of soft soil, the Drucker-Prager shows better.Parameters gotten from the model test like Young’s Modulus E , Poisson’s ratio? ,Cohesion c and friction angle ? etc. are very important for the choice ofconstitutive model in the following numerical simulation. By contrastive analysis ofthe p ? s curve (Load-Settlement curve made by load test) from the model test andengineering example, it is found that the finite element simulation is feasible to guidegeotechnical engineering practice by controlling the soil parameter in the model test.In the model’s load test, as the pipe gaps diameter’augment, the P-S curve getssteep from gently, which shows that the settlement in the same pressure will get largeras the pipe gaps gets biggerThe stratum difference, pile number and diameter’s effect on the differentialsettlement of soft soil foundation in the engineering example are studied by numericalsimulation. It shows that the differential settlement gets larger and then tends gentlyas the stratum’s height difference increase. When the pile number increases, thedifferential settlement gets larger, and the efficiency of pile groups shows clearly.When the pile diameter gets bigger, the differential settlement will decrease and thetrend get gently until the pile’s semidiameter reach 300mm.The analytic result of differential settlement shows that determining of soil parameters is a key step in design. It is of far reaching importance for guidingengineering practice to study the differential settlement of soft clay foundation bymaking model test and using the finite element.

Related Dissertations

  1. The Analysis of Differential Settlement between New and Old Embankments in Widening Projects of Inner Mongolia,U416.1
  2. Study on the Buildings Deformation Around Expansive Soil Foundation Pit,TU443
  3. Study on High Temperature Air Combustion of C3Hs in Flue Gas Auto-circulation Heating Furnace,TK16
  4. The Simulation of the Impact of Ground Fissures for Building Structure,P642.26
  5. Uneven Settlement of Foundation Impact of Adobe Building,TU361
  6. Analysis and Experimental Study about Extended Structure of Bridge,U441
  7. Analysis and Research on Interaction Among High-Rise Building Superstructure, Raft Foundation and Ground,TU973.31
  8. Special Load Effect Analysis and Design Standardization of Lattice Shells for Pre-homogenization Storage in Cement Mill,TU399
  9. Model Tests on Capacity Properties of Expansive Stressed Grouted Clamp,U656.6
  10. Treatment Measures for Settlement and Quality Control Standards of Expreeway in Mountainous,U416.1
  11. Different types of high-speed railway in non-ballasted track under different loads and deformation of the force,U213.244
  12. Study on the Low Carbon Economic Development of Jiangxi Industry Parks,F205
  13. The Design and Application of Complex Foundation on a Project in Xi’an,TU473.1
  14. Research on Settlement Characters of Composite Piled Raft Foundation Based on ABAQUS,TU473.1
  15. Study on the Controlling Technology of Deferential Settlement in Mountain’s Expressway,U416.1
  16. The Blade Design and Experimental Study on Horizontal Axis Turbine Driven by Tidal Current Energy,TK730.32
  17. Study on Treatment Methods and Deformation Characteristics of Saline Soft Soil Ground of Expressway in Xinjiang Province,U416.1
  18. Deformation Monitoring and Numerical Simulation for Deep Excavation Engineering in Soft Soil,TU433
  19. Research on Inclined and Medium-Thickness Phosphate Ore Body’ Stope Strata Behaviors and the Overlying Strata’ Failure Law of Caving Method,TD32
  20. Study on Construction Deformation Characteristic of Deep Foundation Pit of a Tunnel Working Well,TU753
  21. Research of the Load Releasing Law during the Construction Process of Large Section Tunnel,U451.2

CLC: > Industrial Technology > Building Science > Soil mechanics,foundation engineering > Soil Mechanics > Ground deformation
© 2012 www.DissertationTopic.Net  Mobile