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Stability Analysis of Soil and Rock Slopes

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Descripción

The analysis of the stability of slopes is a key aspect in the design of any infrastructure such as roads, railways, canals, pipelines and dams as well as in mining operations.


Características

  • ISBN: 9788413960371
  • Páginas: 114
  • Tamaño: 17x24
  • Edición:
  • Idioma: Ingles
  • Año: 2022

Disponibilidad: 24 horas

Contenido Stability Analysis of Soil and Rock Slopes

The analysis of the stability of slopes is a key aspect in the design of any infrastructure such as roads, railways, canals, pipelines and dams as well as in mining operations. For common infrastructures, slopes reach heights up to 40 or 50 m, although slope of more than 200 m can be built on some occasions. These slopes should normally be projected as vertical as possible for economic reasons and must be stable in the long term. On the other hand, mining slopes are designed based on the mineral deposit to be exploited and may need to be stable exclusively for a short or medium term. The potential instability of slopes is not only related to infrastructures or mining operations, but it is also of high importance in other areas of Civil Engineering like land use planning, urbanism and environmental issues. Although many landslides take place in sparsely populated mountain areas where material damage and deaths are lower than the one produced by other hazards like floods or earthquakes, some slope instabilities around the world resulted in infamous disasters with a great amount of life losses. The consequences of these great disasters together with the fact that small landslides, even though can cause just a dozen victims, are very numerous, almost continuous throughout any year and always result in significant economic losses,shows the importance of analyzing slope stability and forecasting and preventing such kind of natural and man-made potential hazards. For that, this book shows the most relevant aspects for the student of Civil Engineering within the field of the stability of slope.

1. Slope Instabilities


1.1 Introduction
1.2 Slope Instabilities Types
   1.2.1 Varnes’ Classification
   1.2.2 Falls
   1.2.3 Topples .
   1.2.4 Slides
   1.2.5 Lateral Spreads .
   1.2.6 Flows
   1.2.7 Complex Movements
1.3 Triggering Factors
1.4 Instabilities Identification
1.5 Geological-Geotechnical Investigation of Slopes

2. Slope Stability in Soils

2.1 Introduction
2.2 General Aspects
   2.2.1 Soils Features
   2.2.2 Shear Strength
   2.2.3 Types of Instabilities .
   2.2.4 Water Influence
   2.2.5 Instabilities in Soil Slopes
   2.2.6 Calculation Methods
2.3 Analytical Classical Solutions
   2.3.1 Infinite Slope
   2.3.2 Vertical Soil Slope
   2.3.3 Circular Failures
2.4 Use of Charts
   2.4.1 Taylor Charts ..
   2.4.2 Hoek & Bray Charts
2.5 The Method of Slices
   2.5.1 Generalities
   2.5.2 Fellenius’ Method
   2.5.3 Bishop’s Method
   2.5.4 Janbu’s Method
   2.5.5 Exact Methods
   2.5.6 Grid of Centers

3 Slope Stability in Rocks

3.1 Introduction
3.2 General Aspects
   3.2.1 The Rock Mass: Intact Rock and Discontinuities
   3.2.2 Stereographic Projection
   3.2.3 Planes Poles and Discontinuities Sets.
   3.2.4 Instabilities in a Rock Slope
3.3 Planar Failures
   3.3.1 Definition .....
   3.3.2 Kinematic Conditions .
   3.3.3 Stafety Factor Calculation
3.4 Wedge Failures
   3.4.1 Definition ..
   3.4.2 Kinematic Conditions
   3.4.3 Safety Factor Calculation
3.5 Toppling Failures
   3.5.1 Definition
   3.5.2 Kinematic Conditions
   3.5.3 Safety Factor Calculation
3.6 Analysis of Rock Slopes using the SMR (Slope Mass Rating)

4 Corrective Measures

4.1 Introduction

4.2 Geometrical Corrective Measures
   4.2.1 Soil Slopes
   4.2.2 Rock Slopes
4.3 Drainage Measures
   4.3.1 General Aspects
   4.3.2 Surface Drainage
   4.3.3 Deep Drainage
4.4 Reinforcing and Resisting Elements
   4.4.1 Anchors
   4.4.2 Rock Bolts
   4.4.3 Walls
4.5 Surface Protection
   4.5.1 Soil Slopes
   4.5.2 Rock Slopes

5 Use of Finite Element Modeling

5.1 Introduction
5.2 Concept, Advantages and Limitations
   5.2.1 Main Concept of Finite Element Modeling
   5.2.2 Advantages and Limitations
5.3 Constitutive Models
   5.3.1 Soils
   5.3.2 Rock Masses
   5.3.3 Highly Fractured Rock Masses
   5.3.4 Reinforcing and Resisting Elements Modeling
5.4 Water Consideration
   5.4.1 Soils
   5.4.2 Rocks .
5.5 Calculation Issues
   5.5.1 Stage Construction .
   5.5.2 Safety Factor
   5.5.3 Output Information
Bibliography and References

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