毕业设计（论文）-冲击煤层的水压致裂防治研究.doc

论文题目：冲击煤层的水压致裂防治研究 专 业：采矿工程 硕 士 生： （签名） 指导教师： （签名） 摘 要 煤体注水弱化技术是在坚硬干燥煤体中注水后，在水压力和毛细力的切割作用下, 裂隙大量扩展，使原来近似的刚性煤体变成由裂隙分割的块体组成的组合体。裂隙中水的粘滞作用及水分子吸附力使块体间粘性结合、刚度降低、形变增大。所以煤体注水弱化技术是处理坚硬顶板、防治冲击地压的有效技术途径，是一项煤矿安全高效开采的保障技术，具有安全、环保、高效、经济等优点。 本文主要采用物理力学试验、相似模拟、数值模拟、矿压观测和现场试验等方法对屯宝煤矿特有的近距离含夹矸综放工作面的注水弱化防治冲击地压进行了较为系统的研究，所做的主要工作及结果如下：-小周期来压”的矿压显现规律的原因。 （4）理论研究注水对煤的冲击倾向性的影响，通过数值模拟、相似模拟比较注水前后煤的应力大小、塑性区分布和裂缝发育情况，得出注水防治冲击的压的机理。 （5）提出和实施顶煤超前预弱化技术，优化了工艺和参数。 关 键 词：坚硬；；；研究类型：应用研究Subject ：Specialty ：Mining Engineering Name ： （Signature） Instructor：Deng Guangzhe （Signature） ABSTRACT hard dry coal, in under the action of water pressure and capillary force of the cutting, crack extending, a lot of making original approximate rigid coal composed of fractures intersected block, The viscous effect of fissure water and water molecules adsorption force make the combination block between viscosity, lower stiffness, stiffness degradation, deformation increase. Coal Bed Water Injection Hole Drilling Construction Technology is to deal with hard roof, effective prevention and control of rock-burst technology way, is the guarantee of a coal mine safety and efficient mining technology, has the advantages of safety, environmental protection, efficient and economic. This article mainly USES the physical mechanics test, similar simulation and numerical simulation mineral pressure observation, the mine pressure observation and field test methods of the chariot treasure mine own close containing dirt band fully-mechanized working face water injection to weaken the prevention and control of rock bursts a systematic research, the main work and results are as follows: (1) By physical and mechanical test of coal and rock compressive strength, shear modulus, bulk modulus, tensile strength, cohesion, friction within the every Angle and the relationship between the moisture content, di