【摘要】 用壳体理论分析了喷射混凝土支护的柔性特征,得到了支护的"柔度"Δ与硐室半径r0、喷层厚度s的确定关系;给出了支护结构径向位移的计算公式。论证了支护柔度与围岩形变压力的关系,从控制围岩变形方面,探讨了支护结构对保持围岩稳定性的机理。更多还原

【Abstract】 The paper analyses the flexible character of shotcreting by means of folium theory with the suggestion of the relationship among flexible characterΔand chamber radius r0 and shotcreting thickness S and the radius deformation formula. The relationship of supporting flexibility and deformation pressure is put forward with the probing into the role of supporting structure in keeping the stability of surrounding rock更多还原