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中文摘要：
为解决高地应力破碎软岩巷道长期大变形问题.针对其地质条件复杂和影响因素多变的特点,提出以高预拉力、高强度、高刚度"三高"锚杆为主体的软岩巷道强化支护控制体系,主要包括锚杆支护承载性能强化、巷道破裂围岩体强度强化和围岩承载结构强化等3个方面.该支护体系有机地将超强锚杆、锚喷技术、滞后注浆、U型钢改良及壁后充填技术结合在一起.通过数值计算,模拟了不同注浆深度及不同应力补偿水平下围岩变形情况,对比分析了不同支护形式下的巷道变形破坏,为现场施工和关键部位加强支护提供参考.
英文摘要：
To solve the problem of long-time and large-deformation of soft broken roadway with high ground stress,we put forward an enhanced control system characterized by high presress,high-strength,and high stiffness for soft roadway according to complex geological conditions and varible affecting factors.This system includes three intensifications: the bearing performance of bolt,strength of surrounding rocks,and bearing structure of surrounding rocks.The system organically combines the ultra-intenified bolt with ...
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