煤矿安全2019，Vol.50Issue(4)：50-53,4.DOI:10.13347/j.cnki.mkaq.2019.04.012
让压管材料特性参数敏感度正交试验研究
Orthogonal Experimental Study on Sensitivity of Yielding Tube Material Characteristic parameters
秦忠诚 1付彪 1周杨 2孙伟1
作者信息
- 1. 山东科技大学 矿业与安全工程学院,山东 青岛 266590
- 2. 济宁能源发展集团有限公司 金桥煤矿,山东 济宁 272200
- 折叠
摘要
Abstract
In view of the phenomenon that the material characteristic parameters of the yielding tube have no clear influence on the yielding effect, four factors and three levels, including wall thickness, steel grade, medium drum diameter and straight pipe length of the yielding tube, are selected to carry out the orthogonal numerical simulation tests, the sensitivity of the material property parameter of the yielding tube to the dynamic yielding load factor was studied by orthogonal test. The experimental results show that: the sensitivity degree of the four material property parameters from big to small is wall thickness > medium drum diameter > steel grade > straight pipe length. With the increase of the wall thickness and the medium drum diameter, the dynamic yielding load factor increases and the yielding effect weakens. while the steel grades and the straight pipe length have the opposite effect on the dynamic yielding load factor, and with the increase of the parameters, the influence of the steel grade and the straight pipe length on the dynamic yielding load factor is opposite, and with the increase of the parameters, the coefficient of dynamic yielding load is reduced and the effect of pressure is enhanced.关键词
巷道支护/让压管/材料特性参数/ABAQUS数值模拟/让压动载系数Key words
roadway support/yielding tube/material property parameter/ABAQUS numerical simulation/dynamic yielding load coefficient分类
矿业与冶金引用本文复制引用
秦忠诚,付彪,周杨,孙伟..让压管材料特性参数敏感度正交试验研究[J].煤矿安全,2019,50(4):50-53,4.
