Uplift Behavior of Cone-Shape Anchors in Taipei Silty Sand

• Main Authors: Wen-Liang Tseng, 曾文良
• Other Authors: Hong-Jun Liao
• Format: Others
• Language: zh-TW
• Published: 2000
• Online Access: http://ndltd.ncl.edu.tw/handle/90873854156799897419

碩士 === 國立臺灣科技大學 === 營建工程系 === 88 === This research is aimed to study the anchorage behavior of cone-shape anchor in Taipei silty sand. Three methods namely triaxial test, full-scale anchors test and numerical study are used to investigate the behaviors of silty sand and cone-shape anchor. The behavior of cone-shape anchor is studied by the SHSE numerical model. The parameters used by this model are obtained from the triaxial test. FLAC program is adopted here to numerically analyze the behavior of anchor in Taipei silty sand. Generally, the numerical results are in good agreement with the full-scale anchor tests. The influence of cone dimension and soil properties on the anchorage capacity and the load-displacement behavior of anchor are investigated. For anchors with the same length, the cone-shape anchor has a higher ultimate anchorage capacity than shaft anchor. If the fixed length reaches 30m, no progressive failure is observed in cone-shape anchor when anchor reaches its peak pull-out resistance. Therefore, increasing fixed end length in cone-shape anchor could effectively increase the anchorage capacity.