摘要
利用ABAQUS有限元软件二次开发平台,将场变量视为折减系数,通过修改UFIELD子程序建立了其与计算分析步、强度参数的关系,更加简便快捷地分析了边坡的稳定性;通过探讨广州市某高速路段边坡的稳定性,对比分析了传统有限元强度折减法、二次开发和通过计算得到的边坡安全系数;模拟了边坡从局部到整体的失稳过程,确定了合理可靠的边坡安全系数,并验证了ABAQUS有限元强度折减法和边坡稳定性分析理论与方法的正确性及有效性。
In this paper,the field variable is regarded as the reduction factor by the secondary development platform of ABAQUS software.The relationship between the calculation analysis steps and strength parameters is established by modified UFIELD subroutine so that the slope stability can be analyzed more easily and quickly;Then,the safety factors obtained by the traditional finite element strength reduction method,secondary development and calculation are compared and analyzed by discussing the slope stability of a highway section in Guangzhou;The process of slope instability from local to overall is simulated to determine a reasonable and reliable slope safety factor,which verifies the correctness and effectiveness of ABAQUS finite element strength reduction method and the ideas in this paper in slope stability analysis.
作者
巨宏伟
Ju Hongwei(China Railway 18th Bureau Group Tunnel Engineering Co.,Ltd.,Chongqing 400707,China)
出处
《市政技术》
2023年第3期122-128,共7页
Journal of Municipal Technology
