This paper introduced a combined supporting technology, including first supporting, high-strength bolt-net-cable supporting, second supporting, long ring support and grouting behind support.

介绍了该矿采用的高强锚网索一次支护、长环形支架二次支护以及壁后注浆的联合支护技术。

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Original bolt-supporting technology of rail roadway 4302 played little role in supporting, so it led to severe deformation, bad maintaining conditions and high maintaining cost of roadway.

某矿4302轨道平巷原有的锚杆支护技术不能有效的发挥作用，导致部分巷道变形严重，维护条件差，维护费用高。

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