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虽然矿山巷道的使用目的、服务期限及安全要求与隧道有很大差异,不能同一对待,但是,对巷道围岩及其支护动态进行测试并利用其结果有可能减少巷道的维护费用和劳力。测试目的1.由于掘进巷道或在附近采矿引起围岩动态变化,需对围岩稳定性、支护设计和效果进行评价,对支护形式、支架尺寸及间距的修正和时间等进行判断。
Although the purpose, service period and safety requirements of mine roadway are very different from those of the tunnel, they can not be treated the same. However, testing the surrounding rock and its supporting dynamic and using the result may reduce roadway maintenance cost and labor. Test Objectives 1. Due to the dynamic changes of surrounding rock caused by roadway excavation or nearby mining, the stability and supporting design and effect of surrounding rock should be evaluated, and the correction and time of support form, bracket size and spacing should be judged.