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内容大纲
本书聚焦煤岩动态力学响应及灾害防控。研究方案设计部分涵盖对煤应力情况的科学认知、测试系统原理及内容逻辑关系。在不同动态载荷下,探讨了预应力煤的破坏特性和细观劣化机制,分析动静载耦合下煤柱冲击危险性及预防措施。阐述了含水量对煤动态力学性能、能量传输耗散的影响,以及含水量和外部入射能量对煤动态行为的作用。研究了孔隙率在饱水煤抗动态扰动中的作用、不同浸泡时间下破碎煤的动态响应与破坏机制。最后,剖析巷道周边煤体注水防治动力灾害的力学机制,介绍损伤分布、应力波传播规律,提出注水优化方案并验证注水效果,为煤矿动力灾害防控提供理论与实践参考。 -
作者介绍
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目录
1 Research Scheme Design
1.1 Scientific Understanding of the Stress Situation of Coal
1.2 Test System and Principle
1.3 The Core Content of the Book and the Logical Relation Between Them
2 Failure Characteristics and Meso-deterioration Mechanism of Pre-stressed Coal Subjected to Different Dynamic Loads
2.1 Introduction
2.2 Specimens Preparation and Basic Properties of Coal
2.3 The Effect of Pre-static Load and Dynamic Load on Dynamic Response of Coal
2.4 Dynamic Failure Mechanism of Coal under Coupled Static and Dynamic Loads
2.5 Discussion on the Fatalness of Coal Pillar Burst under Coupled Static and Dynamic Loads and Its Prevention
2.6 Conclusions
References
3 The Effects of Water Content on Dynamic Mechanical Properties of Coal
3.1 Introduction
3.2 Specimens Preparation and Water Treated
3.3 Static Mechanical Properties of Coal with Different Water Contents
3.4 The Influence of Water Content on Dynamic Mechanical Properties of Coal
3.5 Energy Transmission and Dissipation
3.6 Conclusions
References
4 The Effects of Water Content and External Incident Energy on Coal Dynamic Behaviour
4.1 Introduction
4.2 Specimens Preparation
4.3 The Effect of Water Content and Incident Energy Level on Dynamic Response of Coal
4.4 The Effect of Water Content and Incident Energy on Dynamic Failure
4.5 Discussion about the Effective Prevention Measures for Dynamic Disasters
4.6 Conclusions
References
5 The Role of Porosity in the Dynamic Disturbance Resistance of Water-saturated Coal
5.1 Introduction
5.2 Specimens Preparation and Basic Properties Test
5.3 Dynamic Compression Test and Analysis
5.4 Dynamic Failure Mechanism of Water-saturated Coal
5.5 Discussion on Efficient Methods for Dynamic Disaster Instability
5.6 Conclusions
References
6 Dynamic Response and Failure Mechanism of Fractured Coal under Different Soaking Times
6.1 Introduction
6.2 Basic Properties of Coal
6.3 The Influence of the Soaking Time on the Dynamic Response of Coal
6.4 Discussion about the Dynamic Mechanical Mechanism of Coal under Different Soaking Times
6.5 Conclusions
References
7 Dynamic Mechanical Mechanism and Optimization Approach of Roadway Surrounding Coal Water Infusion for Dynamic Disaster Prevention
7.1 Introduction
7.2 Damage Distribution in the Roadway Surrounding Coal
7.3 Stress Wave Propagation Mechanism in Roadway Surrounding Coal
7.4 The Effect Mechanisms of Water Infusion on the Dynamic Disasters
7.5 Optimization Approaches of Water Infusion
7.6 Water Infusion Effect Verification for Dynamic Disasters Prevention
7.7 Conclusions
References
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