|本期目录/Table of Contents|

[1]侯廷凯,周宗红,余洋先,等.岩爆相似材料的最优配比试验研究[J].中国安全生产科学技术,2018,14(11):114-120.[doi:10.11731/j.issn.1673-193x.2018.11.018]
 HOU Tingkai,ZHOU Zonghong,YU Yangxian,et al.Experimental study on optimum proportion of similar material for rock burst[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2018,14(11):114-120.[doi:10.11731/j.issn.1673-193x.2018.11.018]
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岩爆相似材料的最优配比试验研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
14
期数:
2018年11期
页码:
114-120
栏目:
职业安全卫生管理与技术
出版日期:
2018-11-30

文章信息/Info

Title:
Experimental study on optimum proportion of similar material for rock burst
文章编号:
1673-193X(2018)-11-0114-07
作者:
侯廷凯1周宗红1余洋先2王大明1靳西传1
(1.昆明理工大学 西部优势矿产资源高效利用教育部工程研究中心,云南 昆明 650093;2.四川二八二核地质工程有限公司;四川 德阳 618000)
Author(s):
HOU Tingkai1 ZHOU Zonghong1 YU Yangxian2 WANG Daming1 JIN Xichuan1
(1.Ministry of Education Engineering Research Center of the Western Superior Mineral Resource Utilization with High Efficiency, Kunming University of Science and Technology, Kunming Yunnan 650093, China;2. Sichuan 282 Nuclear Geological Engineering Co., Ltd., Deyang Sichuan 618000, China)
关键词:
白云岩相似材料正交试验相似理论敏感性配比研究
Keywords:
similar material of dolomite orthogonal test similarity theory sensitivity proportion study
分类号:
X936;TU458
DOI:
10.11731/j.issn.1673-193x.2018.11.018
文献标志码:
A
摘要:
为了对云南某矿山深部白云岩进行相似材料优选,以细砂、水泥、石膏、硼砂和减水剂为原料,采用正交试验原理确定了以石膏水泥比、掺砂率、掺水率、硼砂含量为影响因素的4因素4水平正交设计方案。对试件模型进行单轴抗压和巴西劈裂试验,得到相似材料抗压及抗拉强度、抗压抗拉比、弹性模量,通过方差和极差分析研究了各影响因素对研究指标影响的显著性。研究结果表明:掺砂率对单轴抗压强度和抗拉强度的影响较显著,单轴抗压强度随石膏水泥比和掺砂率的增大逐渐降低,抗拉强度随掺砂率的增大逐渐降低;抗压抗拉比随着掺水率的增加逐渐增加;弹性模量随着石膏水泥比的增加逐渐下降。通过多元线性回归分析得出白云岩相似材料配比的经验方程,经计算得出该矿山深部白云岩相似材料的最优配比为:石膏水泥比3.1∶1,掺砂率59%,掺水率20%,硼砂含量0.4%,减水剂含量0.3%。
Abstract:
In order to carry out the optimization of similar material for the deep dolomite of a mine in Yunnan, taking the fine sand, cement, gypsum, borax and water reducing agent as the raw materials, an orthogonal design scheme containing four factors and four levels with the ratio of gypsum and cement, sand mixing rate, water mixing rate and borax content as the influencing factors was determined by using the orthogonal test principles. The uniaxial compression and Brazilian splitting tests were carried out on the specimen model, then the compressive strength and tensile strength, the ratio of compressive and tensile, and the elasticity modulus of the similar material were obtained, and the significance of the influence on the research indexes by each influencing factor was studied by the variance and range analysis. The results showed that the influence of sand mixing rate on the uniaxial compressive strength and tensile strength was more significant. The uniaxial compressive strength decreased gradually with the increase of the ratio of gypsum and cement and the sand mixing rate, the tensile strength decreased gradually with the increase of the sand mixing rate, the ratio of compressive and tensile increased gradually with the increase of the water mixing rate, and the elasticity modulus decreased gradually with the increase of the ratio of gypsum and cement. The empirical equation about the proportion for the similar material of dolomite was obtained through the multivariate linear regression analysis, and the optimum proportion for the similar material of the deep dolomite in this mine obtained by the calculation was: the ratio of gypsum and cement as 3.1∶1, the sand mixing rate as 59%, the water mixing rate as 20%, the borax content as 0.4%, and the content of water reducing agent as 0.3%.

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备注/Memo

备注/Memo:
收稿日期: 2018-09-19
基金项目: 国家自然科学基金项目(51864023,51264018, 51064012)
作者简介: 侯廷凯,硕士研究生,主要研究方向为采矿工程与岩石力学。
通信作者: 周宗红,博士,教授,主要研究方向为采矿工程与岩石力学。
更新日期/Last Update: 2018-12-03