The study of the relation model between elastic modulus and porosity in deep coal seam roof sandstone
Rock mass’s elastic modulus is closely related to its compositions,inner structural characteristics and stress-strain state.By assuming the elastic modulus of pore that as a part of rock is zero,a relational model between the elastic modulus of the whole rock and component as well as volume fraction...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Emergency Management Press
2019-06-01
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| Series: | 矿业科学学报 |
| Subjects: | |
| Online Access: | http://kykxxb.cumtb.edu.cn/article/id/215 |
| _version_ | 1828093892524769280 |
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| author | Zhao Yang Zhou Hongwei Liu Di Ren Weiguang Liu Jianfeng |
| author_facet | Zhao Yang Zhou Hongwei Liu Di Ren Weiguang Liu Jianfeng |
| author_sort | Zhao Yang |
| collection | DOAJ |
| description | Rock mass’s elastic modulus is closely related to its compositions,inner structural characteristics and stress-strain state.By assuming the elastic modulus of pore that as a part of rock is zero,a relational model between the elastic modulus of the whole rock and component as well as volume fractions was derived in this paper.The parameters in this model of deep roof sandstone were determined by the experimental measurements of different brittle rocks such as granite,deep coal rock,roof sandstone and high cementation sandstone prepared by artificial proportioning.In addition,the acoustic emission experiment of cyclic loading and unloading on deep roof sandstone was conducted to determine the change rule between elastic modulus in the rock elastic phase and porosity.The experimental results show that the average error between the theoretical calculated value and experimental measurement value of the elasticity modulus was 2.11%,which proved that relation model between elastic modulus and porosity under stress was applicable. |
| first_indexed | 2024-04-11T06:50:51Z |
| format | Article |
| id | doaj.art-0a9b1ef1d2fd4656be1684c06ccdace1 |
| institution | Directory Open Access Journal |
| issn | 2096-2193 |
| language | English |
| last_indexed | 2024-04-11T06:50:51Z |
| publishDate | 2019-06-01 |
| publisher | Emergency Management Press |
| record_format | Article |
| series | 矿业科学学报 |
| spelling | doaj.art-0a9b1ef1d2fd4656be1684c06ccdace12022-12-22T04:39:12ZengEmergency Management Press矿业科学学报2096-21932019-06-014320421210.19606/j.cnki.jmst.2019.03.00220190302The study of the relation model between elastic modulus and porosity in deep coal seam roof sandstoneZhao Yang0Zhou Hongwei1Liu Di2Ren Weiguang3Liu Jianfeng4School of Mechanics and Civil Engineering, China University of Mining and Technology, Beijing 100083, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology, Beijing 100083, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology, Beijing 100083, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology, Beijing 100083, ChinaSchool of Water Resources and Hydropower, Sichuan University, Chengdu Sichuan 610065, ChinaRock mass’s elastic modulus is closely related to its compositions,inner structural characteristics and stress-strain state.By assuming the elastic modulus of pore that as a part of rock is zero,a relational model between the elastic modulus of the whole rock and component as well as volume fractions was derived in this paper.The parameters in this model of deep roof sandstone were determined by the experimental measurements of different brittle rocks such as granite,deep coal rock,roof sandstone and high cementation sandstone prepared by artificial proportioning.In addition,the acoustic emission experiment of cyclic loading and unloading on deep roof sandstone was conducted to determine the change rule between elastic modulus in the rock elastic phase and porosity.The experimental results show that the average error between the theoretical calculated value and experimental measurement value of the elasticity modulus was 2.11%,which proved that relation model between elastic modulus and porosity under stress was applicable.http://kykxxb.cumtb.edu.cn/article/id/215elastic modulusporosityrock componentsdeep rockacoustic emission experiment |
| spellingShingle | Zhao Yang Zhou Hongwei Liu Di Ren Weiguang Liu Jianfeng The study of the relation model between elastic modulus and porosity in deep coal seam roof sandstone 矿业科学学报 elastic modulus porosity rock components deep rock acoustic emission experiment |
| title | The study of the relation model between elastic modulus and porosity in deep coal seam roof sandstone |
| title_full | The study of the relation model between elastic modulus and porosity in deep coal seam roof sandstone |
| title_fullStr | The study of the relation model between elastic modulus and porosity in deep coal seam roof sandstone |
| title_full_unstemmed | The study of the relation model between elastic modulus and porosity in deep coal seam roof sandstone |
| title_short | The study of the relation model between elastic modulus and porosity in deep coal seam roof sandstone |
| title_sort | study of the relation model between elastic modulus and porosity in deep coal seam roof sandstone |
| topic | elastic modulus porosity rock components deep rock acoustic emission experiment |
| url | http://kykxxb.cumtb.edu.cn/article/id/215 |
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