干旱区生态环境知识资源中心(Arid): 索连板球基础竖向抗拔承载特性及其影响因素

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	索连板球基础竖向抗拔承载特性及其影响因素
其他题名	Vertical uplift resistance of the foundation of plate and ball connected by anchor cable and its influencing factors
	王雪姣 1; 言志信 2; 龙哲 2
来源期刊	土木与环境工程学报（中英文）
ISSN	2096-6717
出版年	2019
卷号	41 期号:4 页码:36-43
中文摘要	针对沙漠地区砂土地基的工程特性及现有输电塔基础存在的不足,研发出索连板球基础。将室内相似模型上拔试验与数值模拟计算相结合,对不同上拔荷载作用下的基础位移进行分析,并研究了埋深比、球径及柱径对基础极限抗拔承载力系数及土体表面主破裂面半径的影响及其规律。研究结果表明:数值模拟计算结果与模型试验结果吻合较好,与土体变形演化的三阶段相对应,荷载位移曲线呈三段式变化;埋深比对基础极限抗拔力影响最大,且它们之间呈正相关关系;极限抗拔承载力系数随埋深比增大呈先增大后减小的变化趋势,与球体直径呈负相关关系,与水泥土柱直径呈正相关关系;土体表面主破裂面半径与埋深比、球径及柱径均呈负相关关系。
英文摘要	According to the engineering properties of sandy soil foundation in desert area and the shortcomings of the existing transmission tower foundation, a foundation of plate and ball connected by an anchor cable is developed. By combining the similar model uplift tests and numerical simulations, the displacement of the foundation under different uplift loads is analyzed. Besides, the influence and its rule of buried depth ratio, spherical diameter and column diameter on the ultimate uplift bearing capacity coefficient of the foundation and the radius of main rupture surface of soil surface are studied. The results show that the numerical simulation results are in good agreement with the experimental results. The load-displacement curve presents a three-stage form, which corresponds to the three stages of soil deformation evolution. The ratio of buried depth is of the greatest influence on the ultimate uplift resistance of foundation, and there is a positive correlation between them. The ultimate uplift bearing capacity coefficient increases first and then decreases with increase of burial depth ratio. It is negatively correlated with the sphere diameter and positively correlated with the cement-soil column diameter. The radius of the main rupture surface of soil is negatively correlated with the buried depth ratio, spherical diameter and column diameter.
中文关键词	索连板球基础 ; 埋深比 ; 荷载位移曲线 ; 极限抗拔承载力系数
英文关键词	foundation of plate and ball connected by anchor cable buried depth ratio load-displacement curve ultimate uplift bearing capacity coefficient
语种	中文
收录类别	CSCD
WOS类目	CONSTRUCTION BUILDING TECHNOLOGY
WOS研究方向	Construction & Building Technology
CSCD记录号	CSCD:6565359
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/316131
作者单位	1.三峡大学土木与建筑学院;;河南城建学院土木与交通工程学院, ;;, 宜昌;;平顶山, 湖北;;河南 443002;;467036, 中国; 2.河南城建学院土木与交通工程学院, 平顶山, 河南 467036, 中国
推荐引用方式 GB/T 7714	王雪姣,言志信,龙哲. 索连板球基础竖向抗拔承载特性及其影响因素[J],2019,41(4):36-43.
APA	王雪姣,言志信,&龙哲.(2019).索连板球基础竖向抗拔承载特性及其影响因素.土木与环境工程学报（中英文）,41(4),36-43.
MLA	王雪姣,et al."索连板球基础竖向抗拔承载特性及其影响因素".土木与环境工程学报（中英文） 41.4(2019):36-43.