Dissertation > Excellent graduate degree dissertation topics show

Study of Mechanics Behavior and Properties of Landslide Soil Via Laboratory Test

Author: ZhouYongKun
Tutor: WeiZuoAn
School: Chongqing University
Course: Mining engineering
Keywords: Landslide Slip soils Mechanical behavior Soil test Case Study
CLC: P642.22
Type: Master's thesis
Year: 2010
Downloads: 179
Quote: 0
Read: Download Dissertation

Abstract


Slip soils is an important part of the landslide. Its physical and mechanical behavior of landslide occurrence, development, and is closely related to slope stability analysis and evaluation, landslide control. Therefore, for the slip soils to carry out the study of the physical and mechanical characteristics and mechanical behavior, has become an important task in the research and control of the landslide hazard. In collecting, collating existing slip with soil physical and mechanical properties, such as the research literature, understand the slip zone soil current research status and existing problems, common in Chongqing landslide slip soils laboratory experiments on the sliding soil mechanical properties of behavior conducted in-depth research. In the indoor test test, the application of the theory of orthogonal design, selection and optimization of the test program; statistics theory and analysis of variance and regression analysis, a systematic analysis of the test results. Finally, engineering of Sichuan Province Guangyuan City Wangjiawan, landslide prevention as an example, the mechanical properties of slip soils conducted in-depth analysis of the impact of the landslide disaster prevention. Content and research results of this thesis, mainly: (1) by laboratory experiments to test the two sliding soil physical properties and particle composition, physical properties of the sliding soil parameters and particle size distribution law. Laboratory triaxial shear test to study the mechanical behavior of single slip soils under different moisture content conditions, test results showed that: the peak intensity of the single slip soils with elevated moisture content decreased with confining pressure the increased gradually increases. At the same time, the use of the theoretical and experimental test means of orthogonal design, the weak sandwich composite sliding soil mechanics behavior influencing factors were studied. Analysis of variance analysis of test results and found that the moisture content of the weak interlayer composite sliding soil shear strength parameters angle of internal friction (phi) and cohesion (C) to affect the largest, followed by weak interlayer thickness of the soil. Finally, the study in the same moisture content conditions, the impact of the different gravel particle size on the strength of slip soil parameters, results show that cohesion with gravel larger particle size increased, but the angle of internal friction decreases gradually; while its shear strength with the the gravel particle diameter becomes large and showed a gradually increases - peak - gradually decreasing phenomenon. (3) indoor direct shear test and compression test, two slip soils under different moisture content conditions, variation and compression characteristics of the shear strength parameters, test results show: the moisture content on sliding soil shear strength parameters is relatively large, but with the increase in the moisture content, the cohesion C value and the internal friction angle phi value different variation, cohesion C value there is an optimum moisture content. Direct shear test results with a single sliding soil triaxial shear test results are basically the same. Compression test, sliding soil compression coefficient av gradually increases with increasing moisture content the compression modulus E_s decreases with increasing moisture content. Of Guangyuan City, Sichuan Province Wangjiawan landslide as an example, sensitivity analyzes were performed for the strength of slip soil parameters affecting the stability of landslide angle of internal friction (phi) and cohesion (C), the results showed anti-slip zone soil shear strength parameters effect on landslide stability is most sensitive. Slip soils is a major component of the landslide, its mechanical behavior of landslide stability analysis and landslide prevention and treatment play a crucial role. As can be seen from the results, landslide prevention and treatment of the most effective measures in landslide prevention, control surface water and groundwater in the landslide area. Therefore, to carry out the mechanical behavior of slip soils study has significant theoretical value, but also has important practical significance.

Related Dissertations

  1. Case Studies of Three English Teachers of Vocabulary Teaching Strategies in a Junior High School,G633.41
  2. A Case Study of School-Based Curriculum Development of Guangzhou Vocational School of Tourism and Business,G712.3
  3. Educational Equity Monitoring in China: Theoretical Exploration and Case Study,G521
  4. The Case Study about Environmental Supervision of Yingkou Port Bayuquan Ore Terminal Project,U656.1
  5. Study of Curriculum Development in an International Division of a Public School,G622.3
  6. The creation of high school physics teaching and the use of case studies the physical environment,G633.7
  7. On performing vehicle in the lower primary role in support of the music classroom,G623.71
  8. Beverage companies Crisis Management,F426.82
  9. Mathematically gifted high school students to learn mathematics Case Study,G633.6
  10. Generated a storm of physics because of the high case studies,G633.7
  11. Qinghai-Tibet railway landslide hazard assessment,P642.22
  12. Qinghai Oilfield Downhole Operation Company Specialized management case study,F426.22
  13. The Mechanism of Promoting the Ability of Crisis Management for Property Management Enterprise with Knowledge Management Perspective,F293.33
  14. Career Education Implementation Experience and Push Strategies in Ordinary High School,G637
  15. The Case Study of the School Factors on the Academic Achievement of the Left-behind Children,G521
  16. Influence Power: the Core Element of the Professional Development of Teaching Practice,G420
  17. Integration of IT with Mathmetic Education in Kindergartens and Case Study,G613.4
  18. The Case Study of Rural School Education Function Weakening,G521
  19. A Case Study for Characteristics of Primary Mathematics Teachers’ Knowledge,G623.5
  20. Practical Strategies on the Education of Children’s Rhythms in Primary School,G623.2
  21. A Typical Case Study on Inductive Thinking Ability Training in High School Classroom Teaching,G633.6

CLC: > Astronomy,Earth Sciences > Geology > Hydrogeology and Engineering Geology > Engineering Geology > The geological and engineering geological > Landslide
© 2012 www.DissertationTopic.Net  Mobile