风化岩体中压力型锚索锚固机理的研究

摘要

Studying on the anchor mechanism of cable in weathered rock mass more precisely, the stress state of the pressure-type cable was analyzed based on theoretical analysis by studying stress changes with the elastic modulus of weathered rock, the radius of the anchor holes and priestesses load, which obtained the compressive stress of anchor cable hole grout, the rule of shear stress distribution around the contact surface. The result enriches the anchor mechanism of cable and provides a theoretical basis for practical engineering applications.%为了更加精确地研究风化岩体中压力型锚索的锚固机理,在理论分析的基础上对压力型锚索锚固段的应力状态进行了研究.分别在风化岩体中锚索锚固段随岩体弹性模量变化、锚栓孔半径变化及预应力荷载变化时的应力变化情况,得到了锚索孔内注浆体受到的压应力及锚索孔与围岩接触面上受到剪应力的分布规律.研究结果进一步丰富了锚索的锚固机理,为实际工程应用提供了理论依据.