1) fissures in soil mass affected by mining
采动土体裂隙
2) mining-induced fracture
采动裂隙
1.
Based on engineering example of protective layer mining in Hongling coal mine of Shenyang Coal Group,the mining-induced fracture distribution has been studied.
以沈煤集团红菱煤矿保护层开采为工程实例,通过开采11#煤层,对存在煤与瓦斯突出的7#煤层和12#煤层进行卸压,研究保护层开采后采动裂隙分布规律。
2.
a spectial computer program FIMAGE for the image analysis of mining-induced fracture has been drawn up and the program can be used to make quantitative statistics of the experiment results of the mining-induced fracture.
在分析计算机图像处理的步骤与采动裂隙二值化图像统计算法的基础上,编制了采动裂隙图像处理程序FIMAGE,应用该程序可对覆岩采动裂隙模型实验结果进行定量统计。
3.
Rock mass deformation and failure in working face caused by underground mining lead to mining-induced fracture,which is the source of a series of mine disasters.
地下矿床开采引起采场围岩变形破坏产生采动裂隙,采动裂隙是矿山一系列灾害的根源,研究矿山采动裂隙岩体的地球物理场特征,提出可行的地球物理方法对裂隙岩体实施高精度高分辨率探测,对于防治矿山灾害发生,保障矿山安全,具有重要的理论意义和实际应用价值。
3) mining-induced fractures
采动裂隙
1.
By means of experiments and theoretical analysis, the dynamic distributions and its influence factors of the mining-induced fractures were studied.
岩层采动裂隙分布的研究与水体下和承压水上采煤、卸压瓦斯抽放、离层区充填与开采沉陷控制等工程问题紧密相关。
4) mining induced fracture
采动裂隙
1.
Caving thickness effects on distribution and evolution characteristics of mining induced fracture;
采动裂隙分布及其演化特征的采厚效应
2.
The distribution characteristics of mining induced fractures in the overlaying strata are studied by means of model experiments, the image analysis and discrete element simulation method,and revealed that two stage development law of fracture caused by mining and distribution characteristics of “O shape” circle in long wall face and guide for hole pattern of relieving gas drainage.
应用模型实验、图像分析、离散元模拟等方法，对上覆岩层采动裂隙分布特征进行了研究，揭示了长壁工作面覆岩采动裂隙的两阶段发展规律与“Ｏ”形圈分布特征，并将其用于指导卸压瓦斯抽放钻孔布置，在淮北矿区卸压瓦斯抽放中得到应用，取得了显著效果。
5) crack network in mined rockmass
采动岩体裂隙网络
补充资料：裂隙岩体底摩擦模型
裂隙岩体底摩擦模型
base firction model of fissured rock
{一ex一yontld一moeo mox一ng裂隙岩体底摩擦模型(ba、e fr，et，on model offissured rock)利用模型移动受阻挡时在其底部形成的滑动摩擦阻力，模拟在自重应力作用下裂隙岩体破坏过程这种模型是一种简易的岩石力学定性模型。 将模型放在一个活动砂纸(或帆布带，塑料带等)底带上，纸带装在匣中间，用受控电机带动当砂纸带移动时，模型由于横杠阻挡而实际上不能移动在模型底面上形成的摩擦阻力可以模拟岩体的自重应力。其实验设备和实验方法见图。常用的模型材料有:(1)可任意切割与重复利用的可塑性材料，如油泥加砂子、粘土加砂子或橡皮泥等。(2)各种硬质块体成型材料，如木块、糖块、软木块、塑料块、石膏块、岩块等屯4 底摩擦模型月;是备示意图 1模型2活动石，纸带弓匣; 4电机几一咸吏杭构6横柱 模拟重力或斜面滑动时，均应满足f一g厂ZZv的相似关系.即在自由落体跌落时间t既定条件下.底带移动速度V越大，在底摩擦模型中完成相同落体运动所需时间t}，越小 各国曾用此方法来研究不连续面块状结构岩体，巷道及节理交错切割的边坡模型的破坏机理 (吕乃璧)
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