• 应用研究 •

### 三类锚杆受拉作用解析解的统一表达式

1. 福建工程学院 土木工程系
• 收稿日期:2009-09-14 修回日期:2009-11-17 出版日期:2010-04-08 发布日期:2010-04-08

### GENERAL ANALYTICAL SOLUTION OF THREE TYPES OF ANCHORS UNDER TENSILE LOAD

CHEN Guo-zhou

• Received:2009-09-14 Revised:2009-11-17 Online:2010-04-08 Published:2010-04-08

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.