1) side cutting and roof cutting
刷帮挑顶
1.
The original ingate was enlarged by side cutting and roof cutting under the condition of filling behind wall by grouting, and then be supported and reinforced by the secondary support technology.
原马头门断面不能满足矿井安全需要,需对原马头门进行断面刷大,采用刷帮挑顶技术。
2) enlarging roof by reverse
反向挑顶刷大
1.
Take-720 central pump house construction of Renlou Coal Mine for example introduces the main step construction,enlarging roof by reverse,bolting and shotcreting temporary support and second times conerete surpport ect.
以任楼煤矿-720中央泵房施工实践为例,介绍了通过正台阶施工、反向挑顶刷大、锚梁喷临时支护、钢筋混凝土二次支护等施工工艺,确保了巷道的安全、顺利施工。
6) Slab blasting
刷帮爆破
补充资料：挑么挑六
1.挑剔，找差错。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条