土层性状对挤扩多盘桩破坏状态及承载力影响的初探  

RESEARCH ON THE AFFECT OF COLLAPSE STATE AND BEARING CAPACITY OF THE PUSH-EXTEND MULTI-UNDER-REAMED PILE UNDER DIFFERENT SOIL LAYER PROPERTIES

作　　者：钱永梅[1] 解学文 刘晓龙[1] 

机构地区：[1]吉林建筑大学,长春130118

出　　处：《建筑技术开发》2014年第5期31-33,共3页Building Technology Development

基　　金：国家自然科学基金项目(51278224)

摘　　要：通过对挤扩多盘桩现阶段的理论研究与实际工程对照,初步探讨了当承力盘处于不同性状土层及土层厚度不同时对承载力及土体破坏状态的影响,将进一步完善不同情况下挤扩多盘桩单桩极限抗压、抗拔承载力的计算模式和土体的破坏机理,为进一步保证挤扩多盘桩设计的合理性、可靠性及实际工程的可应用性提供了初步的根据。Contrasted with present theoretical study of the Push-extend Multi-under-reamed pile and practical engineering, preliminary discussed the affect of bearing capacity and collapse state of soil when bearing plate is in soil of different properties and different soil thickness. It will improve the calculation mode of ultimate compressive and uplift bearing capacity of that single pile and the destruction mechanism of soil in different conditions. It will also guaranteed the rationality, reliability and application of practical engineering of the Push-extend Multi-under-reamed pile.

关 键 词：挤扩多盘桩 不同性状土层 土层厚度 抗压承载力 抗拔承载力 

分 类 号：TU313.1[建筑科学—结构工程]