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明潭(Mingtan)地下厂房洞室是台湾最大的地下厂房之一.洞室的最佳方位及形状是根据地质、应力分析和施工条件确定的.洞顶出露的平行粘土夹层采用高压水射流冲洗软弱夹层井用不收缩的砂浆回填的方法,在总体开挖前从一些小的平洞中进行处理的.同时,为了加固洞顶,在开挖前从平洞中安装了具有防腐波形护套的高强度预应力锚索.岩石锚杆、预应力锚索及钢纤维喷混凝土组成的柔性支护系统在整个洞室周围形成自支撑岩体,大型地下洞室开挖中采用这种支护系统在台湾尚属首次.
The underground cave house of Mingtan is one of the largest underground factories in Taiwan. The best orientation and shape of the cave are determined by geology, stress analysis and construction conditions. The parallel clay intercalations exposed at the top of the cave are made of high-pressure water jets Flush weak intercalation wells with non-shrinkage mortar backfill method, before the overall excavation from a number of small flat hole for processing.At the same time, in order to reinforce the roof, before the excavation from the flat hole installed with anti-corrosion wave protection Set of high-strength prestressed anchor. Rock bolt, prestressed anchor cable and steel fiber reinforced concrete flexible support system formed around the entire cavern self-supporting rock mass, large underground caverns used in the excavation Nursing system is the first time in Taiwan.