粘性土地基墩基础水平承载力试验研究  

Research on horizontal bearing capacity of widen-bottom non-reinforced concrete pier foundation on cohesive soil

作　　者：刘忠昌[1,2] 朱浮声[1] 舒昭然[2] 何文[3] 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110004 [2]辽宁省建筑设计研究院,辽宁沈阳110005 [3]中国航空工业第一集团公司沈阳发动机设计研究所,辽宁沈阳110015

出　　处：《辽宁工程技术大学学报（自然科学版）》2008年第6期850-852,共3页Journal of Liaoning Technical University (Natural Science)

基　　金：辽宁省自然科学基金资助项目(20021008);教育部留学回国人员科学研究基金资助项目(SRF for ROCS，SEM：2003821178);辽宁省科技攻关资助项目(2008-0-1-24)

摘　　要：根据墩基础的受力机理,采用单向多循环加卸荷法,通过对粘性土地基墩基础水平承载力现场试验与研究,分析了影响单墩水平承载力的因素,目的是对单墩水平承载力经验公式进行修正。结合大量的现场试验和观测数据进行统计、回归分析,得出了在水平载荷下的粘性土地基新的单墩承载力经验公式。通过新旧经验公式计算结果与实测值的比较,结果表明:新经验公式是比较可靠、可行的,可供设计参考使用。According to the force mechanism of pier foundation and with the multi-cycle load-unload experimental method, effect factors on the horizontal hearing capacity of non-reinforced concrete pier foundation are analyzed in this paper, and the traditional formula are modified for single concrete pier. Based on lots of the in-site experimental results, the observed data are calculated and analyzed at the same time, and the new calculating formula on horizontal load are proposed and some conclusions are drawn, which will be useful to practical engineering. The calculating result shows approximately coherence with the observed data and is beneficial reference for design.

关 键 词：粘性土地基 墩基础 水平载荷 承载力 

分 类 号：TU442[建筑科学—岩土工程]