|本期目录/Table of Contents|

[1]梁冠军,尤 超.喀斯特地区地层塌陷的离散元法数值模拟[J].绵阳师范学院学报,2018,(05):112-117.[doi:10.16276/j.cnki.cn51-1670/g.2018.05.021]
 LIANG Guanjun,YOU Chao.Numerical simulation of DEM on Collapse of soil layer in Karst region[J].Journal of Mianyang Normal University,2018,(05):112-117.[doi:10.16276/j.cnki.cn51-1670/g.2018.05.021]
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喀斯特地区地层塌陷的离散元法数值模拟(PDF)
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《绵阳师范学院学报》[ISSN:1672-612X/CN:51-1670/G]

卷:
期数:
2018年05期
页码:
112-117
栏目:
地理与资源环境科学
出版日期:
2018-05-15

文章信息/Info

Title:
Numerical simulation of DEM on Collapse of soil layer in Karst region
文章编号:
1672-612X(2018)05-0112-06
作者:
梁冠军尤 超
滁州职业技术学院土木工程系,安徽滁州 2390000
Author(s):
LIANG Guanjun YOU Chao
School of Civil Engineering,Chuzhou Vocational and Technical College,Chuzhou, Anhui 239000
关键词:
喀斯特地区 离散元法 塌陷 数值模拟
Keywords:
Karst region DEM collapse numerical simulation
分类号:
TU433
DOI:
10.16276/j.cnki.cn51-1670/g.2018.05.021
文献标志码:
A
摘要:
运用LS-DYNA 非线性动力学分析软件,采用离散单元法对喀斯特地区地层塌陷现象进行数值模拟,并进一步分析了不同塌孔直径对塌陷效果的影响.结果表明:在实际案例所涵盖的粒径及塌孔尺寸范围内,数值模拟给出了地层塌陷漏斗母线和塌陷效果具有较好的一致性; 岩层开洞尺寸的大小对土粒塌陷速度和塌陷形态有一定的影响.
Abstract:
Based on the discrete element method(DEM), the process of soil layer collapsing in Karst region was simulated by LS-DYNA. Furthermore, the effect of different holediameter on collapse was analyzed.The results show that in the range of soil diameter and collapse size included by actual cases, the numerical simulation shows that the collapse funnel bus of the soil layer and the final collapse effect are in good agreement, and the size of the hole had some influence on the collapse velocity and the shape of the collapse.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-12-20
基金项目:2015年安徽省高度学校自然科学重点项目(KJ2015A362).
第一作者简介:梁冠军(1983-),男,安徽涡阳人,工程师,讲师,硕士,研究方向:土木工程数值仿真.
更新日期/Last Update: 2018-05-15