土木工程与管理学报2016，Vol.33Issue(6)：26-32,7.
劲性复合桩抗拔承载机理分析与改进对策
Uplift Bearing Mechanism Analysis and Improvement Countermeasures of Strength Composite Pile
易兴中 1刘鑫烨1
作者信息
- 1. 南通建工集团股份有限公司，江苏南通 226006
- 折叠
摘要
Abstract
Strength composite pile composed of concrete soil pile and pre-stressed pull-out bearing pile is used as anti-floating components of large-scale commercial complex building,which is the first time in our country. The paper points out strength composite pile ’s shortcomings of insufficient bearing capacity and duration through bearing mechanism analysis,check and comparison of strength composite pile,as well as problem of missing leading regulation basis;gets the conclusion that strength composite pile ’s characteristic value of uplift bearing capacity is less than static load test result according to comparative analysis of stress condition of static test pile and practical strength composite pile. According to analysis it make some improvements of strength composite pile in order that independent bearing pile caps under pile have overall damage,while rigid pipe pile,filling and core composite structures,rigid pile and bearing joint will not be damaged,at this point,regardless of calculation characteristic value of single-pile bearing strength of cement soil pile composite effect,it will satisfy requirements of anti-floating bearing capacity.关键词
劲性复合桩/水泥土桩/预应力管桩/抗拔承载力/静荷载拉拔试验/桩体结构改进Key words
strength composite pile/cement soil pile/prestress pipe pile/uplift bearing capacity/static pull-out load test/pile structure improvement分类
建筑与水利引用本文复制引用
易兴中,刘鑫烨..劲性复合桩抗拔承载机理分析与改进对策[J].土木工程与管理学报,2016,33(6):26-32,7.
