Dissertation > Excellent graduate degree dissertation topics show

Study on the Instability Criterion of Blasting Demolition about Frame Structure

Author: ZhaoZhouNeng
Tutor: ChengGuiHai
School: Guangxi University
Course: Mining engineering
Keywords: Blasting demolition Frame structure Criterion Blasting height
CLC: TU746.5
Type: Master's thesis
Year: 2005
Downloads: 141
Quote: 0
Read: Download Dissertation

Abstract


As a special way of demolition, blasting has been wildly used and its technology has becoming more and more mature. However, its theory has still fallen behind the practice seriously, which has been confirmed by several unsuccessful blasting cases at home and abroad in recent years. Hence, the most important task at present is to study the theory of blasting demolition about buildings, especially the instability criterion of blasting demolition about frame structure as soon as possible. And the technologies of blasting demolition should be made to set free from empirical calculation in order to reduce the venture of the blasting demolition of building and increase the reliability of blasting scheme. Therefore it is indispensable to develop blasting technology based on a lot of consummate theories and great knowledge and construct strictly the design system of blasting demolition.In this paper, the instability criterion of blasting demolition in different collapse techniques of frame structure has been studied in the name of the blasting height of pillar. Firstly, the collapse models of frame structure are classified into autochthonous and directional collapse blasting in the light of the characteristics and different effects of blasting demolition; other models are the mixtures of these two types. Secondly, a feasible pillar blasting height calculation model based on some correlative study methods is put forward. Thirdly, this paper gives analysis on instability criterion of frame structure in autochthonous and directional collapse blasting. The former is that degree of freedom is larger than zero; the latter is that projection of center of gravity on frame structure deviates from the touchdown point of collapsing building. Also, calculating formulas of them have been deducted respectively. Finally, the research findings of this paper have achieved great success in practice, it proves which are right and could guide the blasting demolition practice, what is more, provide a scientific theoretical basis for the design and construction of blasting demolition.

Related Dissertations

  1. Based on Nonliner Finite Element Analysis of the Infilled Wall Frame Structure,TU323.5
  2. The Analysis and Technique Research on Innovative Questions for High School Entrance Examination,G633.6
  3. Research on Peer-to-Peer Traffic Identification Algorithm Based on Cluster Analysis,TP393.02
  4. Exact Observability of Stochastic Time-Varing Systems and Weak Stability of Discrere-Time Stochastic Time-Invariant Systems,O231
  5. The Study on Choice of Policy Tools of China,D630
  6. Any area on the uniform design and construct,TQ460.1
  7. Analysis of Nonlinear Finite Element with Opening Infill Wall Frame Structure,TU323.5
  8. Uplink Power Control of TD-LTE System,TN929.5
  9. Multiple regression models, variable selection problem,O212.1
  10. Study of the Effect of High Voltage Transmission Lines on Buried Metal Pipeline Corrosion,TE988
  11. Research of Performance Appraisal System for JS Group Based on Balanced Scorecard,F272
  12. Study on Adding-storeys Renovation and Reinforcement Methods of Framework Based on the Overall Performance,TU746.3
  13. Study on Influence of Cast-in-situ Slab on RC Frame Structure Achieving "Strong Column Weak Beam",TU375.4
  14. Distributed target detection in wireless sensor network research,TP212.9
  15. Research and Development on Environmental Parameters of Cosatal Water Monitoring System Based on SPC,X834
  16. Study on Stability and Control Strategy for Planar Point Contact Biped Running,TP242
  17. Research on Liability for Tort in Traffic Accident,D922.14
  18. On the legal interpretation of judicial decisions,D90
  19. Research on Subspace Analysis Based Face Recognition Algorithm,TP391.41
  20. Research on Face Recognition Based on Improved Maximum Margin Criterion,TP391.41
  21. Comparative study of derivative financial instruments standards,F233

CLC: > Industrial Technology > Building Science > Construction > Construction Technology > Building maintenance,repair,demolition > Demolition job
© 2012 www.DissertationTopic.Net  Mobile