圆形浅基础承载力计算新模型及验证
摘要:通过假定地基发生整体剪切破坏,给出滑动破坏面,考虑地基土的塑性平衡区随着基础埋置深度的不同而扩展到最大可能的程度,并目计及基础两侧土的抗剪强度对承载力的影响,采用极限平衡法,理论上推导出了圆形浅基础承载力。结合工程实例,并利用有限元程序(ADINA)进行数值模拟,进一步验证了浅基础破坏模式的正确性,以及理论推导的可靠性。
Abstract:This article assumes that the overall foundation shear damage happened, the sliding surtace damage is given, the greatest possible expansion extent of the soil plasticity balance area with the variety of foundation embedment is considered, and both sides of the foundation soil shear strength are taken into account. Circular shallow foundation bearing capacity is theoretically derived with Limit equilibrium method. Using practical engineering examples and numerical simulation with finite element program (ADINA), the correctness of shallow foundation damage model and theoretical derivation are further validated.
中文标题:
圆形浅基础承载力计算新模型及验证
A New Bearing Capacity Calculation Model and Validation of Circular Shallow Foundation
作者:
任志善1,张慧乐2,李从昀1
Ren Zhishan1,Zhang Huile2,Li Congyun1
作者简介:任志善,1971年生,男,汉族,髙级工程师,主要从事岩土工程勘察工作。E-mail:tidirzs@126.com
通讯地址:
1. 北京电力设计院, 北京 100055; 2. 中国京冶工程技术有限公司, 北京 100088
1BeijingElectricPowerDesignInstitute,Beijing100055,P.RChina; 2ChinaJingyeEngineeringCorporationLimited,Beijing100088,P.RChina
中图分类号:TU432
doi:10.3969/j.issn.1007-2993.2009.04.002
出版物:岩土工程技术
收稿日期:2009-05-07
关键词:极限平衡,圆形浅基础,承载力,有限元
Key words:limit equilibrium,circular shallow foundation,bearing capacity,finite element
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