【摘要】 预应力锚索的破坏机理及锚固力传递模式随锚索形式及结构的不同而不同。对锚固体的一种破坏模式及锚固力渐进破坏时的传递规律进行了研究,总结出了该模式块体稳定性判据及渐进破坏时的锚固力传递递推公式,对预应力锚索的施工设计及机理研究有一定的参考价值。更多还原

【Abstract】 Prestressed cable has been widely used in geotechnical engineering;and much attention has been paid to its reinforcing and failure mechanism. Failure mechanism of prestressed cable varies with its type and structure. One of the failure mechanisms is discussed in this paper. It is thought that separated mortar blocks surrounded by steel wire fail in shear one by one. Based on limit equilibrium method,stability judgement of blocks and recursion formula for the transmission of anchoring force after block failure one by one are obtained. The results obtained are of some significance to design and mechanism study of prestressed cable.更多还原