Experimental Study on Mechanical Properties of Gas Storage Sandstone under Water Content
In order to investigate the influence of water content on the damage and degradation characteristics of Hutubi sandstone, different saturation experiments and laboratory mechanical experiments were carried out on Hutubi sandstone. The experimental results show that under uniaxial and triaxial condit...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/5622042 |
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| _version_ | 1850234901669871616 |
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| author | Sinan Zhu Junchang Sun Yingjie Wu Baoyun Zhao Li Zhang Xin Zhang Bingyuan Wang |
| author_facet | Sinan Zhu Junchang Sun Yingjie Wu Baoyun Zhao Li Zhang Xin Zhang Bingyuan Wang |
| author_sort | Sinan Zhu |
| collection | DOAJ |
| description | In order to investigate the influence of water content on the damage and degradation characteristics of Hutubi sandstone, different saturation experiments and laboratory mechanical experiments were carried out on Hutubi sandstone. The experimental results show that under uniaxial and triaxial conditions, with the increase in water content, the axial, lateral, and volume deformations gradually increase, and the deformation shows obvious dilatancy characteristics. The deviator stress and elasticity modulus of the sandstone decreased exponentially with the increasing water content. Confining pressure has a significant effect on the strength improvement of sandstone under the constant water content. Based on lognormal distribution, the damage constitutive model of sandstone which can reflect both uniaxial and triaxial condition with different water contents was proposed. The theoretical curves were compared with the experimental curves, and it was found that the theoretical curves and the experimental curves have similar changing trends. It shows the rationality of the statistical damage constitutive model. |
| format | Article |
| id | doaj-art-17f3dad63a13477698a69ed25feee401 |
| institution | OA Journals |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-17f3dad63a13477698a69ed25feee4012025-08-20T02:02:29ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/56220425622042Experimental Study on Mechanical Properties of Gas Storage Sandstone under Water ContentSinan Zhu0Junchang Sun1Yingjie Wu2Baoyun Zhao3Li Zhang4Xin Zhang5Bingyuan Wang6University of Chinese Academy of Sciences, Beijing, ChinaPetroChina Research Institute of Petroleum Exploration & Development, Beijing, ChinaSchool of Civil Engineering and Architecture, Chongqing University of Science and Technology, Chongqing 401331, ChinaSchool of Civil Engineering and Architecture, Chongqing University of Science and Technology, Chongqing 401331, ChinaSchool of Civil Engineering and Architecture, Chongqing University of Science and Technology, Chongqing 401331, ChinaSchool of Civil Engineering and Architecture, Chongqing University of Science and Technology, Chongqing 401331, ChinaSchool of Civil Engineering and Architecture, Chongqing University of Science and Technology, Chongqing 401331, ChinaIn order to investigate the influence of water content on the damage and degradation characteristics of Hutubi sandstone, different saturation experiments and laboratory mechanical experiments were carried out on Hutubi sandstone. The experimental results show that under uniaxial and triaxial conditions, with the increase in water content, the axial, lateral, and volume deformations gradually increase, and the deformation shows obvious dilatancy characteristics. The deviator stress and elasticity modulus of the sandstone decreased exponentially with the increasing water content. Confining pressure has a significant effect on the strength improvement of sandstone under the constant water content. Based on lognormal distribution, the damage constitutive model of sandstone which can reflect both uniaxial and triaxial condition with different water contents was proposed. The theoretical curves were compared with the experimental curves, and it was found that the theoretical curves and the experimental curves have similar changing trends. It shows the rationality of the statistical damage constitutive model.http://dx.doi.org/10.1155/2021/5622042 |
| spellingShingle | Sinan Zhu Junchang Sun Yingjie Wu Baoyun Zhao Li Zhang Xin Zhang Bingyuan Wang Experimental Study on Mechanical Properties of Gas Storage Sandstone under Water Content Advances in Civil Engineering |
| title | Experimental Study on Mechanical Properties of Gas Storage Sandstone under Water Content |
| title_full | Experimental Study on Mechanical Properties of Gas Storage Sandstone under Water Content |
| title_fullStr | Experimental Study on Mechanical Properties of Gas Storage Sandstone under Water Content |
| title_full_unstemmed | Experimental Study on Mechanical Properties of Gas Storage Sandstone under Water Content |
| title_short | Experimental Study on Mechanical Properties of Gas Storage Sandstone under Water Content |
| title_sort | experimental study on mechanical properties of gas storage sandstone under water content |
| url | http://dx.doi.org/10.1155/2021/5622042 |
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