1)floor damage底板破坏
1.Research on floor damage of working face during initial pressure of the main roof;老顶初次来压时工作面底板破坏深度研究
英文短句/例句
1.Study on the Dynamic Monitoring System of the Destroy of the Bed Plate and the Water of the Bed Plate;采场底板破坏及底板水动态监测系统研究
2.Study of the Floor Failure and Water-Inrush Prediction of Chensilou Coal Mine陈四楼煤矿底板破坏及突水预测研究
3.Forecast of destroyed floor depth based on BP neural networks基于BP神经网络的底板破坏深度预测
4.Study on the Failure Laws of Floor above Confined Aquifer with Paste Filling Mining in Zhucun Colliery;朱村矿承压水上膏体充填开采底板破坏规律研究
5.Study on the Mechanism of Coal Seam Floor Failure and Water Inrush under Imbalance Water Pressure非均布水压作用下采煤工作面底板破坏突水机理研究
6.Research on Distribution Rules of Floor Failure Area of Mining Face on Pressurized Water承压水上开采工作面底板破坏区域分布规律研究
7.Analysis on damage reason of basin plate of stilling pool and reinforcement at Ankang dam安康大坝表孔消力池底板破坏原因分析及补强加固处理
8.Based on the site actual measurements, the inversion analysis on the d estroy range of roof and floor by the combined mining of thin seams was made by using numerical modeling.以现场实测结果为基础，利用数值模拟与反演方法分析了薄煤层联合开采的顶、底板破坏范围。
9.Research of Stress Fields and Deformation and Breakage Characters in Coal Seam Floor under the Contidiation of Mining;采动条件下底板应力场及变形破坏特征的研究
10.Study on the Destructive Laws of Water Inrush in Floor and the Catastrophe Model in Mining with Pressure;带压开采底板突水破坏规律与突变模型研究
11.Coal floor strata failure depth test of working face at big mining depth大采深工作面煤层底板采动破坏深度测试
12.Research on Damage Mechanism of Floor Rock in Mining Steeply Inclined Coal Seam急倾斜煤层开采底板岩层破坏机理研究
13.Research on the Mechanism of Roof-floor Shearing Deformation and Breakage in No.1 Coal Mine of Shi Zuishan Deep Weak Rock Roadway;石嘴山一矿深部软岩巷道顶底板剪切变形破坏机理研究
14.Study on Deformation and Breakage Characters in Coal Seam Floor of Coal Mining Above Confied Aquifer by Numerical Simulation and Engineering Application;承压水上采煤底板变形破坏特征数值模拟研究及其工程应用
15.Mechanism of Water Inrush from Coal Seam Floor and Continuous Survey of Fractured Zones in Coal Seam Floor;煤矿底板突水机理及破坏裂隙带演化动态探测技术
16.Numerical Simulation for Relationship of Mining Width and Floor Failure Height工作面采宽与煤层底板采动破坏带深度关系数值模拟分析
17.Numerical Simulation of Stress Fields and Deformation Failure Characteristics of Coal Seam Floor in Mining Process煤层底板采动应力场及变形破坏特征的数值模拟研究
18.Field measurement study on deformation and destruction of "three-soft" coal seam floor of Chaohua Coal Mine超化煤矿“三软”煤层采动底板变形破坏的实测研究
相关短句/例句
floor failure底板破坏
1.This paper applied FLAC3D to researching distribution rules of floor failure area during mining 15th Coal Seam.采用FLAC3D软件建立煤层开采数值模拟模型,探索了15层煤工作面底板破坏区域分布规律;通过试验工作面的开采,验证了数值模拟分析结果的正确性。
3)coal seam floor failure底板破坏带
1.About 60% coal mines were affected by Ordovician limestone groundwater in our country,so it is important to study on coal seam floor failure regularity caused by coal mining above limestone with pressurized water.本文对电阻率法探测井下底板破坏带视电阻率异常特征进行研究。
4)floor failure mechanism底板破坏机理
5)law of deformation and breakage底板变形破坏
6)the floor damage底板损伤破坏
延伸阅读
底板底板mold stool d IbQ门底板(mold Stool)用以承托钢锐模并在其上进行浇注作业的铸铁平板，也称底盘。对于无底钢锭模，如上小下大的敞口钢锭模或瓶口式钢锭模，底板将与钢水直接接触，并形成钢锭的尾部。采用单层或双层凹型底板，可以得到球缺形或截锥形的凸底钢锭，从而减少上小下大钢锭开坯时的“鱼尾”切损。下注底板铸有限定中心座砖(分钢砖)和流钢砖的凹穴和沟槽。底板上沟槽的分布形式有直角形、H形、放射形、树枝形等多种。(见图)大型钢锭多采用十字形或H形沟槽的底板，每个底板上可摆放4、6或8支钢锭模。小钢锭则多采用放射形或树枝形底板，每个底板上可摆放10一60支钢锭模。底板上凹穴和沟槽的形状与尺寸应与选用的分钢砖及流钢砖的规格相适应，并留出一定余量。一般情况下，砖与槽壁间的缝隙以10~15mm为宜。为了保证底板的强度和刚性，底板的厚度波动在100~25omm之间，钢锭重且支数多时取上限。为了减轻底板的重量和减化制造工艺，底板应尽量做得小些。设计底板的原则有:(1)在底板背面适当的地方做成凹槽;(2)流钢砖形状、种类要简单，尽量选用标准规格;(3)在留出必要间隙的前提下，锭模排列要紧凑，并要考虑改放几种不同锭型的可能性;(4)钢水流向要合理，尽量避免转90“弯，力求各个锭模内钢液面能同速平稳上升。底板必须平整.大型底板铸好后，要经大型龙门刨刨平。浇注小钢锭的底板，不再进行机加工，但要求铸造工艺保证表面平整。车铸时，底板安放在铸锭车上;坑铸时，底板相对固定在铸坑内或车间地平面上。新底板使用前必须烘烤至100一200℃。周转的底板首先要清除前次铸钢留下的残砖、汤道、填充砂等，然后仔细镶砌新的中心分钢砖、流钢砖以及安放中注管砖和中注管、钢锭模等。上注底板要喷涂一层防止钢锭与底板粘连的底板涂料，并放置注流缓冲料(如钢板切边、钢屑等)以及防溅筒等。姗{巫自 a6困颤猛 cd 底板沟槽布置类型示意图 。一直角形汤一H形;c一放射形、d一树枝形 (粼怎明杨建华)
