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根据空间壳体力学原理,通过模型试验研究了聚丙烯纤维混凝土钢筋网壳的力学性能及复合衬砌的变形、破坏形态与发展规律。该支护体系的应用,实现了三维钢筋支架与混凝土力学特性在深井破碎性软岩巷道支护中的复杂应力的转化效应,从而达到对深部巷道围岩稳定的控制目标,能有效地支护高地压大变形巷道、跨采动压巷道、冲击地压巷道以及大断面硐室等。
According to the principle of space shell mechanics, the mechanical properties of polypropylene fiber reinforced concrete reticulated shells and the deformation, failure modes and development rules of the composite lining were studied through model tests. The application of the support system realizes the transformation effect of the complex stress between the three-dimensional steel support and the mechanical properties of the soft rock roadway in deep-well fractured soft rock roadway so as to achieve the control target of the stability of the surrounding rock in the deep laneway and effectively support the high ground Large deformation of the roadway pressure, pressure mining roadway across the mining, rock burst roadway and the large section chamber.