Application Theory Research of Gob-Side Entry Retaining under Specific Geology

出版时间：2021-4

定价：82.00

ISBN:9787502488505

本书以现场调研、理论分析、相似材料模拟、数值模拟为手段，研究煤层倾角及顶板完整性对沿空留巷适应性的影响，建立了沿空留巷适应性分级系统，介绍了特定地质条件下留巷围岩断裂破坏机理，建立了顶板控制力学模型，最后系统分析了回采巷道围岩破坏特征及控制机理。

本书可供从事矿山及地下工程的科研和工程技术人员阅读，也可供高等院校采矿专业的师生参考。

1Introduction1

1.1Classification.of.Mining.Roadways1

1.2Application.of.GER5

Re.ief5

1.3Failure.Modes.of.Roadways7

References8

2Overview.of.Engineering.Geology11

2.1Overview11

2.2CoalBearing.Strata11

2.3Distribution.of.Geological.Conditions15

2.4Chapter.Summary20

References20

3Adaptation.Assessment.of.GobSide.Entry.Retaining22

3.1Introduction22

3.2Determination.of.Impact.Factors23

3.3Field.Application.Statistics26

3.4Indicator.Weighting30

3.5Adaptive.Grades.and.Their.Support.Methods33

3.6Adaptability.Evaluation.Process37

3.7Chapter.Summary41

References41

4Advancing.Cutting.Roof.for.Retaining.Gateway.With.Near.Horizontal.

and.Close.Coal.Seam.Groups44

4.1Introduction44

4.2Mechanism.of.the.Cutting.Roof.for.a.Retaining.Gateway45

4.3Equivalent.Material.Simulation.Experiment46

4.4Result.of.the.Experiment50

4.5Discussion59

4.6Chapter.Summary60

Re.erences61

5Natural.Filling.and.Systematic.Roof.Control.Technology.for.

Retaining.Gateway.in.Steep.Coal.Seams64

5.1Introduction64

5.2Investigation.of.Steep.Coal.Seams65

5.3Analysis.of.the.Advantage.of.the.Use.of.GER.in.Steep.Coal.

Seams66

5.4The.Key.Technology.for.GER71

5.5Gateway.Driving.and.Its.Support.Technology77

5.6Chapter.Summary81

References81

6Soft.Roof.Failure.Mechanism.and.Supporting.Method.for.Retaining.

Gateway84

6.1Introduction84

6.2Description.of.Field.Observation85

6.3Stress.Evolution.Law.in.Roof88

6.4Force.States.of.Roof.Rock.Mass90

6.5Mechanism.for.Failure.of.Roof.Rock.Mass91

6.6Roof.Support.Countermeasures96

6.7Discussion102

6.8Chapter.Summary103

References104

7The.Failure.Characteristics.and.the.Supporting.Technology.for.

PreRetaining.Gateway106

7.1Introduction106

7.2Understanding.of.Surrounding.Rock.Failure.and.Its.Support107

7.3Investigation.of.Test.Field111

7.4Test.of.Gateways.Broken.Width113

7.5CrossSection.Diagram.of.Excavation.Broken.Zone.(EBZ)118

7.6Broken.Width.in.Gateways.with.Different.Excavation.Method123

7.7Experimental.Studies.on.the.Improved.Material.Parameters.

Of.Bolts125

7.8Support.Effect.Analyses.of.Bolt.and.Surround.Rock131

7.9Supporting.Technology137

7.10Chapter.Summary138

References140

At.achmentEvaluation.Results.of.Adaptability.of.Gobside.Entry

.Retaining144

1Introduction1

1.1Classification.of.Mining.Roadways1

1.2Application.of.GER5

Re.ief5

1.3Failure.Modes.of.Roadways7

References8

2Overview.of.Engineering.Geology11

2.1Overview11

2.2CoalBearing.Strata11

2.3Distribution.of.Geological.Conditions15

2.4Chapter.Summary20

References20

3Adaptation.Assessment.of.GobSide.Entry.Retaining22

3.1Introduction22

3.2Determination.of.Impact.Factors23

3.3Field.Application.Statistics26

3.4Indicator.Weighting30

3.5Adaptive.Grades.and.Their.Support.Methods33

3.6Adaptability.Evaluation.Process37

3.7Chapter.Summary41

References41

4Advancing.Cutting.Roof.for.Retaining.Gateway.With.Near.Horizontal.

and.Close.Coal.Seam.Groups44

4.1Introduction44

4.2Mechanism.of.the.Cutting.Roof.for.a.Retaining.Gateway45

4.3Equivalent.Material.Simulation.Experiment46

4.4Result.of.the.Experiment50

4.5Discussion59

4.6Chapter.Summary60

Re.erences61

5Natural.Filling.and.Systematic.Roof.Control.Technology.for.

Retaining.Gateway.in.Steep.Coal.Seams64

5.1Introduction64

5.2Investigation.of.Steep.Coal.Seams65

5.3Analysis.of.the.Advantage.of.the.Use.of.GER.in.Steep.Coal.

Seams66

5.4The.Key.Technology.for.GER71

5.5Gateway.Driving.and.Its.Support.Technology77

5.6Chapter.Summary81

References81

6Soft.Roof.Failure.Mechanism.and.Supporting.Method.for.Retaining.

Gateway84

6.1Introduction84

6.2Description.of.Field.Observation85

6.3Stress.Evolution.Law.in.Roof88

6.4Force.States.of.Roof.Rock.Mass90

6.5Mechanism.for.Failure.of.Roof.Rock.Mass91

6.6Roof.Support.Countermeasures96

6.7Discussion102

6.8Chapter.Summary103

References104

7The.Failure.Characteristics.and.the.Supporting.Technology.for.

PreRetaining.Gateway106

7.1Introduction106

7.2Understanding.of.Surrounding.Rock.Failure.and.Its.Support107

7.3Investigation.of.Test.Field111

7.4Test.of.Gateways.Broken.Width113

7.5CrossSection.Diagram.of.Excavation.Broken.Zone.(EBZ)118

7.6Broken.Width.in.Gateways.with.Different.Excavation.Method123

7.7Experimental.Studies.on.the.Improved.Material.Parameters.

Of.Bolts125

7.8Support.Effect.Analyses.of.Bolt.and.Surround.Rock131

7.9Supporting.Technology137

7.10Chapter.Summary138

References140

At.achmentEvaluation.Results.of.Adaptability.of.Gobside.Entry

.Retaining144