总回风巷风桥设计及应用

The design and application of total return air roadwaywind bridge

为完善陈四楼煤矿通风系统,需在其总回风巷与集中皮带巷交岔口处施工风桥,通过分析研究,决定采用"锚网喷+圆形钢棚+壁后注浆+浇筑混凝土"联合支护技术,对风桥的设计和施工工艺进行了阐述。实践表明,对于大断面风桥的施工,采用"锚网喷+圆形钢棚+壁后注浆+浇筑混凝土"联合支护是一种行之有效的方法,风桥建成以后,未曾出现漏风现象。

To improve the ventilation system in main return airway and concentrated belt Lane cross fork construction wind bridge,decided to adopt the ＂anchor net spray ＋ circular steel shed ＋ wall post grouting ＋ pouring concrete＂ combined support technology and overcomes the large section, large dip angle and the upper（ lower） mountain construction of many unfavorable factors, to ensure the total return air lane wind bridge construction safety.