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[1]芦涌峰,侯克鹏,孙华芬,等.不同种类片岩耐崩解特性试验研究*[J].中国安全生产科学技术,2022,18(8):114-120.[doi:10.11731/j.issn.1673-193x.2022.08.017]
　LU Yongfeng,HOU Kepeng,SUN Huafen,et al.Experimental study on disintegration resistance characteristics of different kinds of schist[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2022,18(8):114-120.[doi:10.11731/j.issn.1673-193x.2022.08.017]
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不同种类片岩耐崩解特性试验研究*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
18
期数:
2022年8期
页码:
114-120
栏目:
职业安全卫生管理与技术
出版日期:
2022-08-31

文章信息/Info

Title:
Experimental study on disintegration resistance characteristics of different kinds of schist
文章编号:
1673-193X(2022)-08-0114-07
作者:
芦涌峰; 侯克鹏; 孙华芬; 孙伟; 蒋军
(1.昆明理工大学 国土资源工程学院，云南 昆明 650093；
2.云南省中-德蓝色矿山与特殊地下空间开发利用重点实验室，云南 昆明 650093）
Author(s):
LU Yongfeng;  HOU Kepeng;  SUN Huafen;  SUN Wei;  JIANG Jun
(1.Faculty of Land Resources Engineering,Kunming University of Science and Technology,Kunming Yunnan 650093,China;
2.Yunnan Key Laboratory of Sino-German Blue Mining and Utilization of Special Underground Space,Kunming Yunnan 650093,China)
关键词:
边坡; 片岩; 耐崩解性指数; 孔隙
Keywords:
slope;  schist;  disintegration resistance index;  pore
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2022.08.017
文献标志码:
A
摘要:
为研究不同种类片岩耐崩解特性，以曼家寨东帮边坡3种片岩为研究对象，通过室内耐崩解性试验和薄片鉴定分析，研究3种片岩崩解物形态特征、破坏模式和耐崩解性指数的变化规律，同时探讨3种片岩崩解差异产生的机理。研究结果表明：3种片岩的崩解差异特性与其物质组成成分密切相关；在相同循环次数下，3种片岩的耐崩解性指数有如下关系，绿泥石化片岩＞云母石英片岩＞石英云母片岩；片岩的崩解模式分为表层剥落、顺节理面劈裂、次生劈裂3个类型；从崩解微观机制上分析，岩石内部孔隙度这一微观结构的损伤是引起片岩崩解的内在因素，孔隙度的高低影响着损伤因子的大小，从而导致3种片岩崩解特性呈现差异性。
Abstract:
In order to study the disintegration resistance characteristics of different kinds of schist,three kinds of schist in the east slope of Manjiazhai were taken as the research object.Through the indoor disintegration resistance tests and thin section identification analysis,the morphological characteristics,failure mode and change in disintegration resistance index of three kinds of schist disintegration were studied.At the same time,the mechanism of disintegration difference of three kinds of schist was discussed.The results showed that the disintegration difference characteristics of the three kinds of schist were closely related to their material composition.Under the same number of cycles,the disintegration resistance index of the three kinds of schist had the following relationship: chlorite schist > mica quartz schist > quartz mica schist.The disintegration modes of schist were divided into three types of surface spalling,splitting along joint plane and secondary splitting.From the analysis of disintegration microscopic mechanism,the damage in the microstructure of rock internal porosity was the internal factor of schist disintegration.The level of porosity affected the size of damage factor,which led to the difference in the disintegration characteristics of three kinds of schist.

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备注/Memo

备注/Memo:
收稿日期： 2021-11-23
* 基金项目： 云南省重点研发计划项目（202003AC100002）
作者简介： 芦涌峰，博士研究生，主要研究方向为边坡工程。
通信作者： 侯克鹏，博士，教授，主要研究方向为岩土工程、采矿工程。
更新日期/Last Update: 2022-09-19