摘要
Abstract
In order to effectively solve the problem of anti-floating in urban underground space,the bearing capacity of anti-floating anchor in rock mass with medium weathered sand is studied in this paper.The results show that when the length of the bolt is less than 15 m,the load-displacement curve shows an arc shape and there are two significant turning points.The failure stage of the bolt is roughly divided into three stages:linear elasticity,elastic-plastic and failure.When the length of the bolt is more than 15 m,the load-displacement curve of the bolt after loading only has a turning point,and the mechanical behavior of the bolt shows two stages:elasticity and failure.The increase of the length of the bolt can effectively reduce the displacement of the anchor head under the same load and extend the elastic stage of the bolt.However,the limit value of the length of the bolt exists,and the limit value of the length of the bolt in this project is 16 m.关键词
层状岩体/抗浮锚杆/极限承载力/位移Key words
Stratified rock mass/Anti-floating anchor/Ultimate bearing capacity/Displacement分类
建筑与水利
