南京工业大学学报（自然科学版）2017，Vol.39Issue(2)：97-101,5.DOI:10.3969/j.issn.1671-7627.2017.02.016
基于离散元地震作用下块状危岩群体崩塌前兆特征研究
Seismic group collapse precursory characteristics of the blocky perilous rocks based on discrete element
摘要
Abstract
This paper establish some models of the blocky perilous rocks by using the discrete element software UDEC.By testing the vertical and horizontal displacements of a block which is located on the angle of the model, the studied on the influence to the failure time of the main four elements that are the lumpiness,height,joint angle and external vibration strength are conducted.The influence of the four big elements on the collapse were summarized.For the individual flip angle, we take the ratio of vertical displacement and horizontal displacement as the displacement angle, and make a decision if it happened the collapse by the change rate of the displacement angle, in the meantime, observe the displacement angle's value when the collapse happened and got the displacement angle's critical value of the blocky perilous rocks which are between 10° and 15°.关键词
UDEC/块状危岩群体/块度/位移角Key words
UDEC/blocky perilous rocks/lumpiness/displacement angle分类
建筑与水利引用本文复制引用
纳曼·麦麦提,张鹏,李俊才..基于离散元地震作用下块状危岩群体崩塌前兆特征研究[J].南京工业大学学报（自然科学版）,2017,39(2):97-101,5.基金项目
喀什大学科研课题(16)2856 （16）
