关键词: 锚固工程, 锚杆剪应力, 解析解

Abstract: In order to obtain a general analytical solution of three types of anchors, an analytical solution of inner-bonded anchor under tensile load is obtained by assuming displacement consistency between anchor and soil, based on Mindlin solution of force at a point in the interior of a semi-infinite solid. Then the analytical solution is extended to the full-bonded anchor and compression anchor. Further, a general analytical solution of the three types of anchors under tensile load is obtained. The effect of anchor type, soil elastic modulus and anchor diameters on shear distribution between anchor and soil is evaluated by using the general analytical solution. The results show that (1) there is only one stress peak along the shear distribution curve of the three types of anchors; (2) as the elastic modulus of soil increases, the magnitude of shear increases while the distribution length of shear decreases; (3) as the anchor diameter increases, the magnitude of shear decreases while the distribution length of shear is almost not changed.

Key words: anchorage engineering, anchor shear, analytical solution