强度折减法在某核电站泵房边坡分析中的应用
摘要:对边坡稳定性分别采用按极限平衡法、有限元强度折减法进行二维分析,通过对比计算结果来验证强度折减法分析的准确性与可行性。针对边坡开挖与加固及隧洞开挖的三维效应,采用三维弹塑性有限元强度折减法分析计算边坡的稳定性,计算分析了开挖完成、支护完成条件下边坡安全系数、位移分布、主应力分布、等效塑性应变区和潜在滑动面。结果表明,支护加固可较大提高边坡的稳定安全系数,三维强度折减法分析在岩土工程领域具有明显优势。
Abstract:Firstly adopt limit equilibrium method and strength reduction method to carry through two-dimensional analysis of slope stability, and contrast analysis result to validate veracity and feasibility of strength reduction method. Secondly contraposing the three-dimensional influence of slope excavation, reinforcement and tunnel excavation, adopt three-dimensional elastoplastic FEM strength reduction method to analyse slope stability, analyse the safety factor, E-equivalent strain, displacement distribution and major stress distribution. The result indicates that reinforcement measure may obviously improve safety factor of slope stability, and three-dimensional strength reduction method is obviously preponderant in rock and soil engineering domain.
中文标题：
强度折减法在某核电站泵房边坡分析中的应用
Application of Strength Reduction Method in Pump Room Slope Analysis of Certain Nuclear Power Plant
作者：
马波,顾生泉,葛鸿辉
Ma Bo,Gu Shengquan,Ge Honghui
作者简介:马波,男,1978年生,工程硕士,高级工程师,一级注册结构工程师。E-mail:marble1993@sohu.com
通讯地址：
上海核工程研究设计院, 上海 200233
ShanghaiNuclearEngineeringR&DInstitute,Shanghai200233,China
中图分类号:TU457
doi:10.3969/j.issn.1007-2993.2016.04.008
出版物：岩土工程技术
收稿日期:2015-09-11
关键词:强度折减法,稳定性分析,安全系数
Key words:strength reduction method,stability analysis,safety factor
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基金项目：
基金项目: 上海市科学技术委员会资助,资助课题编号为13DZ2250200
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