岩层动态破坏与注浆减沉 英文PDF电子书下载

本书详细研究因煤矿开采所导致的地表沉陷类型以及其产生力学机理。通过理论方法、相似试验和现场观测手段，针对覆岩离层和注浆减沉机理中的具体问题，探讨了采场覆岩结构演变的一般规律，注浆条件下离层内承压浆液的力学作用、离层发育规律、不同组成成分的注浆材料性能、浆液流动规律以及灰层沉积形态等，最后深入研究了离层注浆减沉机理，从而为减少因开采等造成地表沉降提供了理论及工程指导。

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1 Introduction 1

1.1 Mining Subsidence and Grouting Subsidence Mitigation 8

1.2 Contents of This Book 27

2 Equivalent Material Simulation Test Under Controllable Environment Conditions 28

2.1 EM ST Method Under Constant Temperature and Constant Humidity Conditions 28

2.2 EM ST of Overburden Bed Separation and Subsidence Laws 31

2.3 Tests of Hardening Equivalent Simulation Materials 39

2.4 Rheological Characterization of Equivalent Simulation Materials 44

2.5 Summary 48

3 Deformation of Overburden and Developm ent of Bed Separation 50

3.1 Movement of Rock Strata and Dynamic Development of Bed Separation 52

3.2 Height of Water Flowing Fracture Zone in Stope 64

3.3 Summary 73

4 Mechanism of Grouting Subsidence Mitigation in Bed Separation 75

4.1 Evolution of Stope Overburden Structure 75

4.2 Mechanism of Grouting Subsidence Mitigation in Overburden Bed Separation Zone 92

4.3 Space Volume of Bed Separation and the Maximum Allowable Grout Amount 109

4.4 Surface Subsidence Prediction Methods Under the Condition of Grouting Subsidence Mitigation 112

4.5 Summary 118

5 Grout Water Seepage Lawsand Properties of Grout Materials 120

5.1 Seepage Theory on Fractured Rock Mass 121

5.2 Grout Water Seepage Modelfor Overburden Bed Separation 124

5 3 Tests of Grout Material Performance 132

5.4 Summary 146

6 Project Cases 148

6.1 Mining Geological Conditions 148

6.2 Grouting Subsidence Mitigation Engineering for Tieer Mining Section 149

References 156

Index 161

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