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图书信息
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Application theory research of god-side entry retaining under specific geology
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ISBN: | 9787502488505 |
定价: | ¥82.00 |
作者: | Hongyun Yang,Yanbao Liu,Zhi Lin[著] |
出版社: | 冶金工业出版社 |
出版时间: | 2021年04月 |
开本: | 24cm |
页数: | 148页 |
中图法: | TD263.5 |
相关供货商
供货商名称
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库存量
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库区
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更新日期
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北京人天书店有限公司
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36
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库区2-1/库区3-2/样本3-2
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2024-04-19
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其它供货商库存合计
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600
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2024-04-15
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图书简介 | 本书是作者多年科研成果总结,书中建立沿空留巷适应性分级系统,以煤层倾角、煤层厚度、巷道埋深、直接顶岩性、直接顶影响系数及顶板完整性等6个地质因素评价沿空留巷适应性,并通过层次分析法得到了6个地质因素影响权重,发现煤层倾角、顶板完整性最高,即对沿空留巷适应性影响最大;提出切顶成巷垮落顶板“承载体结构”模型;大倾角煤层沿空留巷关键技术,通过对大倾角煤层老顶垮落结构、采空区充填特征、垮落矸石动力效应及应力重分布分析后发现,相对于近水平缓倾斜煤层,大倾角煤层沿空留巷过程更有利于巷道围岩稳定;探讨了沿空留巷巷道前期松动圈断面特性,通过55条回采巷道松动圈地质雷达测试,发现回采巷道松动圈皆属于大松动圈,且顶板及高帮松动圈深度普遍大于低帮松动圈深度。 |
目录 | l Introduction 1.1 Classification of Mining Roadwayr/> 1.1.1 Single.Index Classification Methodr/> 1.1.2 Single-Index Classification Methods Integrating Multiple Factorr/> 1.1.3 Multi-Factor and Multi.Index Classification Methodr/> 1.2 Application of GER 1.2.1 Roadway Auto-Forming with Advanced Roof Cutting and Pressure Relief 1.2.2 Tradifional GER Mode 1.3 Failure Modes of Roadwayr/> Referencer/>2 Overview of Engineering Geology 2.1 Overview 2.2 Coal-Bearing Strata 2.2.1 Coalfield in the Northeast of Sichuan Province 2.2.2 Huayingshan Coalfield in the East of Sichuan Province 2.2.3 Coalfield in the South of Sichuan Province 2.2.4 Panzhihua Coalfield 2.3 Distribution of Geological Conditionr/> 2.3.1 nicknesses of Coal Seamr/> 2.3.2 Dip Angles of Coal Seamr/> 2.3.3 Burial Depths of Roadwayr/> 2.3.4 Thicknesses of Immediate Roofr/> 2.3.5 Lithologies of Immediate Roofr/> 2.3.6 Roof Inte两ty 2.4 Chapter Summary Referencer/>3 Adaptation Assessment of Gob.Side Entry Retaining 3.1 Introduction 3.2 Determination of Impact FactOrr/> 3.2.1 Determination Principler/> 3.2.2 Factors Selection 3.3 Field Application Statisticr/> 3.3.1 Dip Angle 3.3.2 Mining Height 3.3.3 Cover Depth 3.3.4 Lithology of Immediate Roof 3.3.5 TICIR 3.3.6 Roof Integricy 3.4 Indicator Weighting 3.4.1 Process of Determining Weightv AHP 3.4.2 Results of Weightr/> 3.5 Adaptive Grades and Their Support Me廿 3.5.1 The Analysis of Support Methods and Their Utilization Conditionr/> 3.5.2 Adaptive Grader/> 3.5.3 Support Method of Each Grade 3-6 Adaptability Evaluation Procer/> 3.6.1 Determination of Membership Function 3.6.2 Actual Gateway Adaptability Evaluation 3.7 Chapter Summary Referencer/>4 AdVaneing Cutting Roof for Retaining Gateway With Near HorizOntal and Close Coal Seam Groupr/> 4.1 Introduction 4.2 Mechanism of the Cutting Roof for a Retaining Gateway 4.3 Equivalent Material Simulation Experiment 4.3.1 Geological Conditionr/> 4.3.2 Equivalent Material Model 4.3.3 Load and Excavation of the Model 4.4 Result of the Experiment 4.4.1 The Formation Process of the Roof Caving Structure 4.4.2 ne Mechanical Structure Model of the Caving Roof 4.5 Discussion 4.6 Chapter Summary Referencer/>5 Natural Filling and Systematic Roof Control Technology for Retaining Gateway in Steep Coal Seamr/> 5.1 Introduction 5。2 Investigation of Steep Coal Seamr/> 5.3 Analysis of the Advantage of the Use of GER in Steep Coal Seamr/> 5.3.1 Analysis of the Characteristics of Roof Cave—Inr/> 5.3.2 Analysis of the Stress Redistribution 5.4 The Key Technology for GER 5.4.1 Support Zone for Steep Coal Seamr/> 5.4.2 Natural Filling Technology for Caved Waste Rock 5.4.3 Strengthening Support Device 5.5 Gateway Driving and Its Support Technology 5.5.1 Gateway Driving 5.5.2 Gateway Support Technology 5.6 Chapter Summary Referencer/>6 Soft Roof Failure Mechanism and Supporting Method for Retaining Gateway 6。1 Introduction 6.2 Description of Field Observation 6.2.1 Survey of Study Site 6.2.2 The Survey Results of Soft Ro《Failure Characteristicr/> 6.3 Stress Evolution Law in Roof 6.3.1 Numerical Simulation Model 6.3.2 Numerical Resultr/> 6.4 Force States of Roof Rock Mar/> 6.5 Mechanism for Failure of Roof Rock Mar/> 6.5.1 Mechanism for Failure of Roof Rock Mass in Wo Face End 6.5.2 Mechanism for Failure of the Roof Rock Mass in Retaining Roadway 6.6 Roof Support Countermeasurer/> 6.6.1 Deformation Analysis of Wo Face End Roof 6.6.2 Bolt Limit Equilibrium Tension Force 6.7 Discussion 6。8 Chapter Summary Referencer/>7,The Failure E~mcterisfics and the Supporting Technology for Pre-Retaining Gateway 7.1 Introduction 7.2 Understanding of Surrounding Rock Failure and Its Support 7.3 Investigation of Test Field 7.3.1 Geological Conditions of Gatewayr/> 7.3.2 Cross.Section and Size 7.4 TeSt of Gateways Broken Width 7.4.1 Test Location of Gatewayr/> 7.4.2 Test Principle of GPR 7.4.3 Results and Analyses of Gateways Broken Width 7.5 Cross-Section Diagram of Excavation Broken Zone(EBZ) 7.5.1 Steps for Obtaining EBZ 7.5.2 Cross—Section Diagram Resulting from EBZ 7.5.3 Failure Characteristics of Gateways Surrounding Rock 7.6 Broken Width In Gateways with Different Excavation Method 7.7 ExperimentaI Studies on the Improved MateriaI Parameterr/> of Boltr/> 7.7.1 Mechanical Effects of a Bolt with Pretension Force 7.7.2 The Improved Mechanical Performance of a Bok 7.8 Support Effe~Analyses of Bolt and Surround Rock 7.8.1 Support Theory Assessment of Gateways Broken Zoner/> 7.8.2 Stress Diffusion Analysis for Anchored Rock Mar/> 7.8.3 Initial Ioad—Bearing Zone of Gateway Surrounding Rock 7.9 Supporting Technology 7.10 Chapter Summary Referencer/>Attachment Evaluation Results of Adaptability of Gob·side Entry Retaining
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