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- By similarity simulation experiment, we analysis the mining-induced fracture distribution and permeability of coal and rock mass near protective layer mined by speckle method. 阐述了含瓦斯煤的力学特性:通过相似模拟实验,用散斑法对保护层开采过程中来动裂隙分布规律及煤岩体的渗透性进行了分析。
- Keywords protective layer mining;RFPA-GAS;numerical simulation;destress; 保护层开采;气固耦合模型;数值模拟;卸压;
- Research on the protection scope and result of protection layer mining 保护层开采的保护范围和效果的研究
- protective layer mining first 开采保护层
- protective layer mining 保护层开采
- To cover with a thin protective layer. 覆盖以薄的保护层覆盖。
- Epidermis The outer protective layer of cells in plants. 表皮:是位于植物体的最外方的保护层细胞。
- All edges to have a protective layer to protect from impact damage. 所有的边要加一个保护以避免损伤。
- If you uses Lux, it will add a protective layer all over your body. 如果你用力士,它会在你的肌体上增加一层保护层。
- The ozone layer is a protective layer around the planet Earth. 臭氧层是地球的保护层。
- Thic coat serves as an adhesive between cells and as a protective layer. 这一层负责细胞间的连接,并作为细胞的保护层。
- The method is to coat a wafer of silicon with a protective layer of silicon dioxide. 其方法是往硅片上涂上一层二氧化硅防护膜。
- Use of the protective layer of water, the dolphins swimming almost no friction or create a vortex. 借助这个水的保护层,海豚游动时几乎没有磨擦力,也不造成漩涡。
- This sudden cold, sudden changes in heat must use special materials and protective layer. 这种骤冷、骤热的变化必须要使用特殊的材料及防护层。
- Kitchen and toilet: Construct up to the waterpoof protective layer,preserve pipeline interfaces. 厨房、卫生间:施工至防水保护层,预留各种管线接口。
- The protective layer of the Paiho earthdam at the Miyun Reservoir slid during an earthquake in 1976. 1976年地震时密云水库白河土坝保护层发生滑坡。
- Without this protective layer, other Colostrum products can be destroyed by stomach acids and offer limited benefit. 没有这些保护外层,其它的牛初乳产品会被胃酸所破坏除低吸收的效益。
- For frozen sweet foods, it can form a protective layer for thermofusion, avoid aroma loss and elevate melting point. 在冷冻甜食制品中添加可提供热聚变保护层,改进香味逸散,提高熔点的性能。
- Numerical simulation was conducted using UDEC3.0 for the movement of overlaying strata and fracture development caused by the mining of upper protective layers of coal seams with close quarters. 本文利用UDEC3.;0软件对近距离上保护层开采导致的覆岩移动及裂隙发育过程进行数值模拟。
- Printed circuit board: A plastic base with a copper coating on to which the circuitry is printed with a protective layer of ink. 印刷线路板:在塑胶基片镀铜,