基于ABAQUS现场变量的双折减因子法边坡稳定性分析

IF 0.8 Q4 ENGINEERING, CIVIL

Electronic Journal of Structural Engineering Pub Date : 2020-06-01 DOI:10.56748/ejse.20248

Mingqing Du, Xuchun Wang

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引用次数: 0

摘要

强度折减有限元法（SRFEM）需要根据各种折减因子手动修改输入的抗剪强度材料参数，这是微不足道的。为了简化计算过程，可以使用ABAQUS提供的场变量来实现SRFEM；因此，它可以在软件中自动完成。通过推导场变量与折减因子之间的关系，得到计算无法收敛时对应的步长t1，从而可以定量计算边坡的稳定系数。根据抗剪强度参数c和φ在边坡破坏过程中衰减程度和速度的不同，本文采用基于场变量的双折减因子有限元方法对边坡进行稳定性分析，并结合经典实例验证了该方法在稳定性分析中的可行性，发现该方法不仅提高了计算效率，而且提高了计算精度。

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Slope Stability Analysis with Dual Reduction Factors Method Based on Field Variables Provided by ABAQUS

The strength reduction finite element method (SRFEM) needs to modify the input shear strength material parameters manually based on various reduction factors, which is trivial. In order to simplify the computation process, the SRFEM can be achieved by using field variables provided by ABAQUS; there-fore, it can be done automatically in software. By deriving the relationship between field variables and reduc-tion factor and getting the corresponding step time t1 when the calculation cannot converge, then it can quan-titatively calculate the stability coefficient of the slope. According to the different decay extent and speed of shear strength parameters c and φ in the process of slope failure, this paper adopted the dual reduction factors finite element method based on field variables for stability analysis of slope, and verified the feasibility of this method in the stability analysis by combining with classic examples, and found that this method not only im-proves computational efficiency but also the calculation accuracy.

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来源期刊

Electronic Journal of Structural Engineering Engineering-Civil and Structural Engineering

CiteScore

1.10

自引率

16.70%

发文量

期刊介绍： The Electronic Journal of Structural Engineering (EJSE) is an international forum for the dissemination and discussion of leading edge research and practical applications in Structural Engineering. It comprises peer-reviewed technical papers, discussions and comments, and also news about conferences, workshops etc. in Structural Engineering. Original papers are invited from individuals involved in the field of structural engineering and construction. The areas of special interests include the following, but are not limited to: Analytical and design methods Bridges and High-rise Buildings Case studies and failure investigation Innovations in design and new technology New Construction Materials Performance of Structures Prefabrication Technology Repairs, Strengthening, and Maintenance Stability and Scaffolding Engineering Soil-structure interaction Standards and Codes of Practice Structural and solid mechanics Structural Safety and Reliability Testing Technologies Vibration, impact and structural dynamics Wind and earthquake engineering. EJSE is seeking original papers (research or state-of the art reviews) of the highest quality for consideration for publication. The papers will be published within 3 to 6 months. The papers are expected to make a significant contribution to the research and development activities of the academic and professional engineering community.