Dissertation > Excellent graduate degree dissertation topics show

Numerical Study on the Optimization Design of Row Piles-Braced Retaining Systerm Deep Foundation Excavation and the Environment Influence

Author: LiHuiNa
Tutor: ShiWei
School: Qingdao Technological University
Course: Geological Engineering
Keywords: Deep Foundation Pit Row of piles support system Optimal design Environmental Impact
CLC: TU753
Type: Master's thesis
Year: 2009
Downloads: 152
Quote: 1
Read: Download Dissertation

Abstract


Urban Underground Space Development and a large number of high-rise building construction prompted the size and depth of the deep excavation works continue to increase, more and more deep excavation engineering densely populated areas in the city buildings, deep pit around existing buildings intensive, pipeline intricate roads, narrow construction site in the notable features of the urban built-up areas of deep excavation engineering. How to optimize the of excavation engineering studies choose a can guarantee the security and stability in the deep excavation of the construction process, but also to obtain better economic benefits of deep foundation pit support structure program has always been the most important issue. At the same time, the deep foundation excavation in the city requires strict control of the excavation of the impact on the surrounding environment. Comprehensive consideration of all aspects of security, economic and environmental evaluation factors to explore the deep foundation pit optimal design method to solve the urban environment geological problems caused by deep excavation undoubtedly has important theoretical significance and value of engineering practice. In this paper, a multi-objective fuzzy decision theory and set the value of statistical methods, multi-objective fuzzy optimization model for the establishment of a deep excavation support system, achieve quantitative Decision, proposed to optimize the selection of deep foundation pit support programs \In this paper, Qingdao stratigraphy and geological conditions, compare row of piles support support system design methods and to consider the impact of the space-time effect of the supporting structure of the force, row pile considering excavation conditions equivalent beam method for design calculations ; using the finite element software of SAP2000 internal support, the support rod pieces, waist beam and ring beam as a plane system, considering different support conditions were analyzed, seeking the most unfavorable internal force combination, the cross-sectional design of the various components of the support system, and ultimately arrive row piles supporting the support system optimization design method, and this method is applied to test its applicability to Qingdao, a deep excavation. Based on FLAC3D a deep excavation process simulation, the simulation analysis results were compared with the measured data analysis, closer to the simulated and measured data to demonstrate the feasibility of FLAC3D simulated excavation impact on the surrounding environment. Application the FLAC3D of Qingdao, a deep excavation simulation analysis, the prediction of surface settlement induced by excavation around. To discuss the impact of the supporting member of the Ground Settlement about Foundation through different pile diameter, different pile spacing and different support-section analysis, numerical simulation results show that support cross-section changes Ground Settlement around the greatest impact, pile diameter changes with minimal impact.

Related Dissertations

  1. Finite Element Analysis and Structure Optimal Design for Combined Seal at Normal Temperature and Low Temperature,TH136
  2. Municipal tourism land use planning environmental impact assessment,X820.3
  3. Study on the Quantified Model of Public Participation in Highway Environmental Impact Assessment,U41
  4. Construction project environmental impact assessment of public participation in the \,X820.3
  5. The Analysis of the Influence of Industrial Structure on Environment Quality in "Chang-Zhu-Tan" Group,X321;F224
  6. Research and Application of Port Planning Environmental Impact Assessment in Harbor Plan,U651
  7. Research on Characters and Parameters Optimization Method of LLC Resonant Converter,TM46
  8. Is to optimize the design of the entire plane and vertical section of the existing lines based on genetic algorithm,U212.3
  9. The Study on Optimal Design and Fuzzy Control of Active Suspension in Vehicles,U463.33
  10. Analyses and Case Study on Environmental Impact of Continuous Catalytic Reforming Combination Unit Construction Project in Petrochemical Plant,X820.3
  11. Analyses and Case Study on Environmental Impact of District-level General Hospital Construction Project,X820.3
  12. The Finite Element Analysis of Loading System Structure of Movable Scaffolding System and Its Optimization Design,U445.3
  13. Optimum Design Roll Passes of Continuous Rolling No12 I-Beam Steel,TG335
  14. Of Public Participation in Environmental Impact Assessment Study system improvement,X-01
  15. Research on Legal System and Problems on the Public Paticipation in EIA of China,X820.3
  16. Wall Diwobao ore cost-benefit analysis of environmental impacts,X820.3
  17. Research on Optimize the Technique of Highway’s Environmental Protection,X322
  18. Catamaran structural characteristics of blast-resistant Shock,U661.4
  19. Construction waste recycling environmental performance analysis,X799.1
  20. \,X820.3

CLC: > Industrial Technology > Building Science > Construction > The project and the type of work > Foundation engineering
© 2012 www.DissertationTopic.Net  Mobile