风化岩体中压力型锚索锚固机理的数值模拟分析

Numerical simulation study on the anchoring mechanism of pre-stressed anchor cable in weathered rock mass

为了更加精确地研究风化岩体中压力型锚索的锚固机理,采用FLAC3D软件对风化岩体中压力型锚索锚固段的应力状态进行了数值模拟。在岩体风化程度、预应力荷载以及围岩变化的情况下,对注浆体受到的压应力、锚索孔壁与注浆体之间接触面上的剪应力进行了研究,得到了注浆体受到的压应力、锚索孔壁与注浆体之间接触面上的剪应力的分布规律,研究成果丰富了压力型锚索锚固机理数值分析的研究内容,具有一定的参考价值,可供工程界参考。

The stress of the pressure-type cable was analyzed by the FLAC3D Software to more precisely study the anchor mecha- nism of cable in weathered rock mass. When the degree of weath- ering of rock mass,the load and the types of rocks were changed, the rule of the compressive stress in anchor cable hole grout and the shear stress around the contact surface were studied. The re- sults enriched the research on analysis of the anchor mechanism of cable with some reference values and provided a theoretical ba- sis for practical engineering applications.