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掩护式液压支架已经被证明是目前深层采煤最有效和最安全的井下支撑技术。这一方法在世界各地的煤矿中得到了广泛的应用。同其他类型的液压支架比较,掩护式液压支架有断裂处的密封较
Sheltered hydraulic supports have proven to be the most effective and safest downhole support technology currently in deep mining. This method has been widely used in coal mines around the world. Compared with other types of hydraulic support, the protective hydraulic support has a seal at the fracture