我矿北矿带－１２０ｍＡ、Ｂ大巷交汇区原来的轨道分布比较简单， 示意图见图１。 图１中，标号４是２４ｋｇ／ｍ单开道岔，Ｉ道为Ａ大巷的 空、重车混合轨道，Ⅱ道是Ｂ大巷的重车道，Ⅲ道是Ｂ大巷的空车道。Ａ、Ｂ大巷交汇区原来矿车的运行方式是：Ａ大巷过来的重车皮经Ｉ道进 Mine mine in northern ore -120mA, B lane intersection of the original orbit distribution is relatively simple, the schematic shown in Figure 1. In FIG. 1, reference numeral 4 is a single-turnout of 24 kg / m. Road I is an empty and heavy-truck mixed track of lane A, lane II is a heavy lane of lane B, and lane 3 is an empty lane of lane B. FIG. A, B lane intersection of the original operation of the car is: A Lane over the heavy car through I Road