Study of high-order numerical manifold method in viscoelastic creep of rock mass

LIU Jian; CHEN Quan

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Study of high-order numerical manifold method in viscoelastic creep of rock mass

更新时间：2026-06-25

- Study of high-order numerical manifold method in viscoelastic creep of rock mass
- Vol. 33, Issue 7, (2012)
- 作者机构：
  
  中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室,武汉,430071
- 作者简介：
- 基金信息：
- DOI：
  CLC： O241
- Online First：13 July 2012，
  
  Published：2012
- 稿件说明：
移动端阅览
LIU Jian, CHEN Quan. Study of high-order numerical manifold method in viscoelastic creep of rock mass[J]. 2012, 33(7).
DOI：

LIU Jian, CHEN Quan. Study of high-order numerical manifold method in viscoelastic creep of rock mass[J]. 2012, 33(7). DOI：

摘要

数值流形法（numerical manifold method）是一种新型的数值计算方法，已成功应用于岩土工程的诸多领域，但该方法尚未应用于岩土工程蠕变分析。近年来对高阶流形法的研究表明，对复杂的岩土工程问题，使用高阶覆盖函数可明显提高流形法的计算精度。为此，开展了用高阶流形法模拟蠕变的研究，在高阶流形法中引入“时步-初应变”法计算蠕变，以广义开尔文体为基础，推导了相关的计算公式，并编制了相应的计算程序，同时还通过算例，验证了方法的可行性和合理性。结果表明，高阶流形可以方便地与“时步-初应变”法结合用于蠕变计算，可较好地模拟蠕变变形。算例分析表明，在不改变网格密度情况下，仅通过采用高阶覆盖函数，高阶流形法可大幅提高传统流形法的计算精度。

Abstract

The numerical manifold method is a new developed numerical method and has been used in many fields of geotechnical engineering. But there is no research on numerical manifold method in creep. In recent years

the study of high-order manifold method shows that using high-order cover function could improve accuracy of manifold method in complex geotechnical engineering. The research on high-order numerical manifold method in creep is presented. The “time step-initial strain” method is combined with high-order numerical manifold method to simulate the creep of rock. Based on generalized Kelvin model

some relation equations are given; and a new code is developed. Some examples are used to check the feasibility and rationality of the method. The result shows that the high-order numerical manifold method could simulate the creep of viscoelastic rock very well combining with “time step-initial strain”. It can improve accuracy of the solution only by using high-order cover function but without changing the mesh density.

关键词

Keywords

references

Views

1810

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Nonlinear viscoelastic creep property of rock with time-temperature equivalence effect

A numerical manifold method for simulating creep of rocks

Analysis of soft soil with viscoelastic fractional derivative Kelvin model

Lagrangian-discrete element method considering creep shear cracking and its application

Experimental study on accelerated destabilisation of creeping coal body under medium impact dynamic loading

Related Author

ZHU Yuan-guang

LIU Quan-sheng

ZHANG Cheng-yuan

SHI Kai

LIU Jian

CHEN Quan

SUN Hai-zhong

ZHANG Wei

Related Institution

Department of Geotechnical Engineering, Tongji University

Department of Mechanics and Civil Engineering, Jinan University

Institute of Computational Mechanics, Liaoning Technical University

College of Mechanics and Engineering, Liaoning Technical University

College of Energy and Mining Engineering, Shandong University of Science and Technology

AI问答

⁰