Stress Corrosion Cracking of Cable Bolts in Underground Environments

推荐语

In this book, premature failures of cable bolts due to stress corrosion cracking (SCC) in underground environments were investigated, aimed to determine environmental factors responsible for SCC in cable bolts, understand the SCC failure mechanism and identify potential strategies to prevent SCC.

The book contains 7 chapters including the literature review, environmental characterization, experimental methodologies, environmental factors responsible for SCC and full-size cable bolt tests. The methodologies developed here can be applied to study SCC in other reinforcement materials such as investigation of SCC potential of bridge and hoisting cables. The results can be used to develop guidelines to assess the underground environments causing susceptibility to SCC of high-carbon steel and set optimal support regimes in different geological and environmental conditions.

目录

1 Introduction

1.1 Global Mining Industry

1.2 Ground Control

1.3 Stress Corrosion Cracking Failures in Underground Mines

1.4 Objectives and Approaches

1.5 Significance of the Research

2 A Review of Cable Bolts, Corrosion and Stress Corrosion Cracking

2.1 Introduction

2.2 Geological Stress Environment in Underground Coal Mining

2.3 Ground Support Technologies in Underground Coal Mines

2.4 Corrosion

2.5 Factors Affecting Corrosion in Underground Coal Mines

2.6 Investigation of Stress Corrosion Cracking of Cable Bolts

2.7 Discussion

3 Environmental Characterisation of Stress Corrosion Cracking in a Simulated Mine Environment

3.1 Introduction

3.2 Experimental Programs

3.3 Results and Discussion

3.4 Conclusions

4 An Experimental Framework for Simulating Stress Corrosion Cracking in Cable Bolts

4.1 Introduction

4.2 Experimental Programs

4.3 Testing Results

4.4 SEM Examinations

4.5 Conclusions

5 Effects of Environmental Factors on Stress Corrosion Cracking of Cold-drawn

High-carbon Steel Wires

5.1 Introduction

5.2 Experimental Programs

5.3 Environmental Variables

5.4 Testing Results

5.5 Fractographic Analysis

5.6 Conclusions

6 Investigation of Cable Bolts for Stress Corrosion Cracking Failure

6.1 Introduction

6.2 Testing Apparatus

6.3 Experimental Programs

6.4 Results and Analysis

6.5 Conclusions

7 Conclusions and Recommendations

7.1 Conclusions

7.2 Recommendations

References