单一长壁采煤法

采矿学电子教案能源科学与工程学院采矿系 2003 年 3 月

第九章单一长壁采煤法 ,[object Object],[object Object],[object Object],[object Object]

第一节走向长壁采煤法 lonwall mining method on the strike of single seam ,[object Object],[object Object],[object Object],[object Object],[object Object]

（二）巷道布置及特点 layout of roadways as well as feature 1 、巷道名称：

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

（三）巷道掘进顺序 Drivage order ,[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object]

（四）主要生产系统 ,[object Object],[object Object],[object Object],[object Object],[object Object],风帘风窗风桥风墙风门 ] [

（五）构成采区生产系统的巷道类型（或采区巷道布置的基本规律） ,[object Object],[object Object],[object Object],[object Object],[object Object]

二、采煤系统分析 ,[object Object],[object Object],[object Object],[object Object]

区段斜长： ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

区段走向长 ,[object Object],[object Object],[object Object],[object Object],[object Object]

（二）区段平巷的布置 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

1 ）区段回风平巷 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

2 ）区段运输平巷（机巷）（ conveyer subentry ） ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

区段运输平巷（机巷） ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

普采、炮采的轨巷和机巷 ,[object Object],[object Object],[object Object],[object Object],[object Object]

2 、一般综采工作面区段平巷布置 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

2 ）一般综采工作面机巷、风巷布置 ,[object Object],[object Object],[object Object],[object Object],[object Object]

3 、高产高效综采工作面区段平巷布置特点 ,[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object]

（ 3 ）中切眼断面及支护 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

中切眼作用 ,[object Object],[object Object],[object Object],[object Object]

（ 5 ）通过中切眼方法 ,[object Object],[object Object],[object Object],[object Object],[object Object]

（三）区段平巷布置方式： ,[object Object],[object Object],[object Object],[object Object]

区段平巷双巷布置 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

2 、一条半巷布置 ,[object Object],[object Object]

3 、单巷布置 ,[object Object],[object Object]

4 、高沼矿设瓦斯尾巷的双巷布置 ,[object Object]

（四）单工作面与双工作面布置 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],1 — 中间运输平巷 2 — 上轨道平巷 3— 下轨道平巷

对拉工作面 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

（五）工作面回采顺序 ,[object Object],[object Object],[object Object]

[object Object],[object Object],工作面回采顺序问题：少掘巷；采出率高；要求支护技术和手段好；要防漏风；留巷困难。适用：少用。

工作面回采顺序 ,[object Object],[object Object],[object Object],[object Object]

（六）区段间无煤柱开采的回采巷道布置 ,[object Object],[object Object]

沿空留巷 ,[object Object],[object Object],[object Object],[object Object]

2) 沿空掘巷时回采面接替顺序 ,[object Object],[object Object]

单面保持采区产量，区段顺序接替

（ 2 ）沿空掘巷区段顺序接替 ,[object Object],[object Object]

（七）采场通风方式与回采巷道布置 ,[object Object],[object Object],[object Object],[object Object],[object Object],上隅角

2 、通风方式 ,[object Object],[object Object],[object Object],[object Object]

通风方式 ,[object Object],[object Object]

通风方式 ,[object Object],[object Object],[object Object]

（八）地质构造影响时区段平巷布置 ,[object Object]

第二节倾斜长壁采煤法 longwall mining to the dip or to the rise ,[object Object],[object Object],[object Object]

一、单一倾斜长壁采煤法采煤系统 ,[object Object],[object Object],[object Object]

2 、巷道布置特点： ,[object Object],[object Object],[object Object]

（二）掘进顺序： ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

（三）生产系统 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

实例 ,[object Object],[object Object],[object Object],[object Object]

二、倾斜长壁采煤系统分析 ,[object Object],[object Object],[object Object]

仰斜开采与俯斜开采 ,[object Object],[object Object],[object Object]

（二）单工作面与双工作面（ single and double faces ） ,[object Object],[object Object],[object Object],[object Object]

（三）前进式、后退式与混合式 ,[object Object],[object Object],[object Object],[object Object],[object Object]

采面前进式、后退式与混合式回采 ,[object Object],[object Object],Fig.9 — 13 （ a ）示，设分带煤柱；

采面前进式、后退式与混合式回采 ,[object Object],Fig.9 — 13 （ b ），不设分带煤柱

（四）主要巷道类型 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

（五）运输系统问题 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

三、矿压显现及支护特点 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

煤层倾角对顶板稳定性影响

仰采与俯采 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

四、回采工艺特点 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

回采工艺特点 ,[object Object],[object Object],[object Object],[object Object]

五、倾斜长壁采煤法评价及适用条件 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

倾斜长壁采煤法优点 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

倾斜长壁采煤法缺点 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

（二）倾斜长壁采煤法适用条件 ,[object Object],[object Object],[object Object],[object Object],[object Object]

（三）倾斜长壁与走向长壁采煤法的异同 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

第三节大采高一次采全厚采煤法 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

大柳塔矿大采高一次采全厚采煤法 ,[object Object],[object Object],[object Object],[object Object],[object Object]

3 、采煤工艺特点： ,[object Object],[object Object],[object Object],[object Object],[object Object]

4 、适用条件 ,[object Object],[object Object]

第四节、单一走向长壁采煤法的应用 ,[object Object],[object Object],[object Object]

思考题 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

思考题 ,[object Object],[object Object],[object Object],[object Object],[object Object]

单一长壁采煤法

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