采煤工作面过老巷时，主要检查哪些项目?--杨远锋的博客

采煤工作面过老巷时，主要检查哪些项目?

[ 2012-2-8 9:19:00 | By: 杨远锋 ]

答：主要检查如下几项：

1．对年久失修已不通风的老巷，要做到先按《规程》规定徘放瓦斯，然后进行巷道修复。

2，工作面过老巷时，旧巷应提前修复，要避免整个工作面同时通过老巷。

3．老巷的位置与工作面平行时，要提前将工作面调整成伪斜，使工作面与老巷间形成一个三角带，三角带应加强支护。

4．老巷位置与工作面垂直时，通过前应在老巷中加强支护。如老巷支架上方有冒顶，要用木料填实。

5．通过穿层石门时应加强维护。在顶板中的一段石门必须用木垛填实、稳固，并要在底板规定位置制造人工假底。

6．当老巷位于工作面底板时或工作面斜交溜煤井、斜石门等时，同样应用木垛填实。

7．如果老巷在工作面上方，要用大于老巷宽度的长木梁托顶。如果老巷在工作面下方，应填实后加长底梁，支柱打在底梁上。

8．老巷中所有的钢铁材料要清理干净。

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原创

[ 2016-9-6 17:03:49 | By: 原创(游客) ]

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原创

[ 2016-9-28 16:39:01 | By: 原创(游客) ]

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原创

[ 2016-9-30 11:15:40 | By: 原创(游客) ]

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Re:在漫画中识别身边的违章

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