%A %T Numerical Analysis on Pull-out Characteristic of Wholly Grouted Cable %0 Journal Article %D 2011 %J Science & Technology Review %R 10.3981/j.issn.1000-7857.2011.11.008 %P 52-55 %V 29 %N 11-11 %U {http://www.kjdb.org/CN/abstract/article_3377.shtml} %8 2011-04-18 %X In order to study the mechanical deformation characteristic of soil mass and wholly grouted cable under the pull-out condition, a numerical calculation model is founded by FLAC3D, the mechanical characteristic of cable, response of soil mass, and influence factors for pull-out characteristic are analyzed. The analysis results show that: (1) the axial stress of cable reduces along shaft; (2) during the loading procedure, the failure propagates rapidly along cable shaft, and eventually leads to the whole failure of cable; (3) the soil mass tends to be pulled out by cable with the friction force between cable and soil mass; (4) with the increase of surrounding stress, the curve of loading-displacement before failure phase displays even more obviously linear characteristic, meanwhile the failure load of cable becomes larger and larger, and the entire relationship between failure load of cable and surrounding stress can be fitted by the exponential equation with high precision; (5) the increase of surrounding stress can lead to the increase of cohesion between cable and surrounding soil mass, however with a limited magnitude; therefore when surrounding stress increases to some degree, the anchor force of cable can not be increased anymore.