土钉支护突变稳定分析中能量方程的建立  

The establishment of power functions in stability analysis of soil nailing support system based on the catastrophe theory

作　　者：童华炜[1] 周龙翔[1] 钟声[1] 

机构地区：[1]广州大学土木工程学院,广东广州510006

出　　处：《广州大学学报（自然科学版）》2007年第3期68-71,共4页Journal of Guangzhou University:Natural Science Edition

摘　　要：突变理论是系统科学中研究系统变化的一种方法,能够阐述系统中某些变量如何从连续逐渐变化导致系统的突然变化的问题,对于研究系统临界状态有着独特的作用.突变理论的核心问题在于是否能够找到一个能够描述系统状态变化的力学方程.针对在基坑开挖中的土钉支护体系,以岩土塑性力学原理对单根土钉及其周围维护土体进行能量变化分析,分别得出了土体能量方程和土体与土钉之间的粘结摩擦能量方程.Catastrophe theory is a method toward the solve critical state in system science. It can explain how the gradual change of some variable quantity result in the abrupt change of the system. The primal problem in catastrophe theory is how we can find a mechanics function that describes the change of the system. We research the power change of the single soil nailing and the soil maintained by the soil nailing utilizing the principles of geotechnical plastics mechanics aim at the soil nailing support in excavating of foundation pit. We also deduce the power function of the soil and the friction between soil and soil nailing.

关 键 词：土钉支护 岩土塑性力学 突变理论 能量方程 

分 类 号：O344.1[理学—固体力学]