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1、15 21m increase rapidly 迅速增长；1.5-5m 支承压力峰值 peak abutment pressuremagnitude of the peak abutment pressure 峰 值大小：1.5-5 overburdern weight后方压力：vertical pressureface area：far below the cover loadgob area：gradually increase at last：the cover load范围：0.3-0.4 the overburden thickness.No abutment pressureSid
2、e abutmentFirst felt: At the same time as the front abutment pressure范围：from the rib to 1/3 or 1/4 h largest at the ribside, decrease exponentially with distance from ribposition of peak pressure：0.015hMagnitude depend on the thickness and length of the immediate roof hanging in the gob.Gob area采空区稳
3、定-图slip, sag, separate-图cave inFace area工作面区Support the immediate roofSolid coal实体煤Chapter 4.3 Roof support systemFace-to-gob distance控顶距，工作面到采空 区的距离。Yield pressure 屈服压力 support resistance 支架阻力 Face-to-tip distance 端面距 Precut预切割Frames节式支架Stroke行程Chock support垛式支架Double-acting ram双作用千斤顶Web cut截深Shiel
4、ds掩护式支架Double link 双键Lemniscate双纽线，四联杆Roof canopy 顶梁Chock-Shield支撑掩护式支架leg, prop 立柱canopy顶梁forward canopy 前梁rear canopy 尾梁caving shield 掩护梁flipper, spauling shield 护帮板slider, jack board 插板ram , cylinder, jack 千斤顶hose油管emulsion乳化液valve 阀support yielding 支架卸载Chapter 4.4 Longwall coal-getting machinemi
5、ner, mining machine 采煤机continuous miner连续采煤机shearer滚筒采煤机motor电动机、马达electric motor 电机haulage gearcase 牵弓|部gearhead传动部cutter drum gearcase 滚筒截割部bedplate底盘、底座control unit控制装置chain链条reducing gear box 减速箱pillboard挡煤板cowl挡煤板bit截齿drum 滚筒ranging-arm 摇臂gear齿轮track轨道gear track 齿轨gearcase n.齿轮箱Rotor转子Chapter 4
6、.5 Conveying systemflexible flight conveyor / face chain conveyor工作面可弯曲刮板输送机main components 主要部件 drive head机头部 electric motor 电动机 Hydraulic coupling 液力联轴器 speed reducer 减速器chain wheel / sprocket 链轮 drive head frame 机头架 middle sections 中间部 line pan 溜槽flight / scraper 刮板link chain 刮板链 endless chain 无极
7、链 机尾部tail end机尾架 Drive end frame 链轮 sprocket附属装置 auxiliary drives/units挡煤板 spillboard / spill plate （cowl 罩，外 壳）铲煤板ramp plate千斤顶jackchain drive 链式传动：classification according to chain arrangement 双边链 double strand outboard chain 三链 triple strand chain单中链 single middle chain 双中链 double middle chain新型刮
8、板输送机侧卸式 side-loading fight conveyor垂直转弯式 roller-curve fight conveyor 转载机 Transfer conveyorA short heavy flexible flight conveyor 桥式转载机（bridge）stage loader 区段皮带输送机Main components皮带 belt托辊 roller 支撑托辊 supporting roller机架frame传动装置drive unit 电动机 electric motor联轴器coupling减速器 speed reducer滚筒drum 卸载滚筒unloa
9、ded drum 机尾导向滚筒tail guide drum 拉紧滚筒take-up drum 机尾导向滚筒guide drum拉紧装置take-up units 制动装置 Braking devices 采区运输系统： 上山rise 下山dipDip angle W15 belt conveyor 1525 ceramic conveyor 水平运输系统水平运输大巷 horizontal haulage entry belt conveyor矿车 trolley wagons机车 locomotive电力机车 trolley locomotive 蓄电池机车 battery locomoti
10、ve 矿车wagon固定箱式矿车 Fixed box wagonTipping bucket wagonFront unloading wagon底卸式矿车 Bottom-dump wagon 立井提升系统矿井提升系统Mine hoist system 提升机 Engine hoist 钢丝绳wire rope 天轮 head sheave （n.滑轮） 箕斗skip辅助运输 auxiliary transportation Transportation of material, equipment, waste and personnel材料、设备、矸石、人员 副井 Auxiliary sh
11、aft Similar to main shaft罐笼 Cagehoist container斜井SlopeIn the slope, material and equipment are usually transported by direct rope hoist and endless rope hoist. While the waste is transported by skip and train according to the dip angle. The personnel are transported by a special man-car in the slope
12、.水平运输大巷 horizontal haulage entry Electric locomotive haul the wagons to transport material, equipment, waste.Electric locomotive haul the special man-cars to transport miners.采区上下山 district rise and dip1) 有极绳提升 Direct rope hoist dip angle： 8-22钢丝绳的一端与矿车相连，通过绞车(winch) 放出和收回。2) 无极绳提升 Endless rope hois
13、t dip angle：W10区段运输Tail entry： wagons + wire rope Overhead monorail 单轨吊 Overhead endless rope hoist Transfer conveyor 转载运输机 Stage loader桥式转载机Roller curve conveyor滚轴转弯运输机Chapter 4.6 Ventilation system风机：Ventilation fan 回风井：Return shaft 进风井：Intake shaft Working face Intake working回风巷道：Return roadway 新
14、鲜风：Fresh airAir flow乏风：Dirty air回风系统：抽出式通风：Exhaust ventilation 负压 negative pressure压入式通风：Forced ventilation 正压 Positive pressure 风机类型：离心式风机：Centrifugal fan； 轴流式风机：Axial flow fan。通风设施：Ventilating structures 风墙：Ventilation wall风门：Air door 风桥：Air bridge Air regulator防尘、灭尘：Dust suppressionwater spray 洒水
15、，mist spray 喷雾固定滚筒双向截割采煤机fixed-drum bi-directional shearer单滚筒可调高采煤机 single-drum ranging-arm shearer双滚筒可调高采煤机 double-dram ranging-arm shearer 矿井瓦斯：mine gas瓦斯：gas, methane, firedampAll hazardous gases in underground coal mines, its major component is CH4.Colorless, odorless, nonpoisonous, Combustible.Its density is less than that of the air, so it often accumulates near the roof.Gas/methane control 瓦斯控制 Gassy mine高瓦斯矿井Chapter 5Pillar systemTwo distinct phases
