钢管混凝土墩柱高效沿空留巷技术研究与应用 - Tapa blanda

Research and application of high-efficiency technology of retaining roadway along goaf with concrete-filled steel tube piers(Chinese Edition)

paperback. Condición: New. Paperback. Pub Date: 2020-11-01 Language: Chinese Publisher: Emergency Management Press Research and Application of High-efficiency Roadway Retaining Technology for Concrete Filled Steel Tubular Pillars along Goafs based on the current status of coal-pillar-free mining technology and the use of concrete-filled steel tubular members in underground coal mines Based on the application research. a new type of high-efficiency technology for retaining roadways along goafs with concrete-filled steel. Nº de ref. del artículo: NS056024

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