风桥在谢桥矿井下的应用与研究

Application and Research of Airbridge in Xieqiao Coal Mine

摘要: 煤矿井下设计过程中会遇到在一个平面上相互交叉的巷道，形成四岔门结构。为使两条交叉巷道彼此之间的通风系统相互独立，常规的方法是设计施工一条岩巷绕道，但施工绕道增加了岩巷工程量的投入，也一定程度上延缓了采煤工作面的投产工期。在保证巷道围岩稳定的情况下，通过对原有交叉巷道进行巷修改造，施工风桥，实现了交叉巷道处通风系统及运输系统的相互独立。谢桥矿首次在1312(3)工作面施工了风桥，回采成功后，又陆续在13516及2111(3)工作面施工了风桥，目前上述几个工作面均已安全回采。通过介绍风桥的设计及施工方法，以及与新掘一条岩巷绕道之间的经济比较，最终阐述了风桥在煤矿井下的推广应用。

Abstract: In the design process of coal mine, it will meet intersecting roadways on a plane and form the structure of the four-branch door. To make the ventilation systems independent of each other, the conventional method is to design a detour, but the detour increases the investment of the engineering quantity, and also delays the production of the coal mining face to a certain extent. In the stable condition of roadway surrounding rock, the ventilation system and transportation system of the cross roadway are separated by repairing original intersecting roadways and the construction of airbridge. The airbridge was built on the working face of 1312(3) in Xieqiao coal miner for the first time. After the successful recovery, the airbridge was built on the working face of 13516 and 2111(3), and the above mentioned working surfaces are all safe. By introducing the design and construction method of the airbridge, and the economic comparison between the airbridge and a detour, the application of airbridge is finally expounded.