Study on Grouted Body Deterioration Mechanism of Sand Layer in Seawater Environment
Water-rich sand is a common stratum in marine underground engineering. Grouting is the most common method for solving geological disasters in water-rich sand. However, the marine environment differs greatly from the land environment. The erosion and seepage of seawater ion cause significant deterior...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/6329257 |
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| author | Hongbo Wang Zhipeng Li Xiaoguo Wang Qingsong Zhang Lianzhen Zhang |
| author_facet | Hongbo Wang Zhipeng Li Xiaoguo Wang Qingsong Zhang Lianzhen Zhang |
| author_sort | Hongbo Wang |
| collection | DOAJ |
| description | Water-rich sand is a common stratum in marine underground engineering. Grouting is the most common method for solving geological disasters in water-rich sand. However, the marine environment differs greatly from the land environment. The erosion and seepage of seawater ion cause significant deterioration of grouted body, which reduces the physical and mechanical properties of grouted body. The maintenance of grouted body performance is the guarantee of long-term safe operation of the tunnel in the marine environment. In order to solve the problem of long-life grouting design for sand layer in seawater environment, an accelerated test of grouted body erosion under seawater erosion environment is designed to study the mesomorphological characteristics of seawater erosion on grouted body erosion and to reveal the mechanism of seawater erosion and solids. The evolution law of grouting plus solid strength under different slurry water-cement ratios and different seawater erosion time conditions is analyzed. The results show that the grouting plus solid effective time for water-cement ratios of 0.8 : 1, 1 : 1, 1.4 : 1, and 2 : 1 is 75a, 60a, 30a, and 15a; the index of strength degradation ratio of seawater environment to grouting plus solids is proposed, and the quantitative relationship between seawater erosion time and grouting plus solids strength is established, which provides theoretical basis for sand layer grouting reinforcement in seawater environment. We hope to provide some reference for the design and construction of sand grouting in seawater environment. |
| format | Article |
| id | doaj-art-2cedde3a0bad4ae68c4c6097e7fb6ce3 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-2cedde3a0bad4ae68c4c6097e7fb6ce32025-02-03T05:47:38ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422021-01-01202110.1155/2021/63292576329257Study on Grouted Body Deterioration Mechanism of Sand Layer in Seawater EnvironmentHongbo Wang0Zhipeng Li1Xiaoguo Wang2Qingsong Zhang3Lianzhen Zhang4College of Civil Engineering and Architecture, Shandong University of Science and Technology, Qingdao, ChinaSchool of Transportation and Civil Engineering, Shandong Jiaotong University, Ji’nan, ChinaCollege of Civil Engineering and Architecture, Shandong University of Science and Technology, Qingdao, ChinaGeotechnical and Structural Engineering Research Center, Shandong University, Ji’nan, ChinaCollege of Pipeline and Civil Engineering, China University of Petroleum, Qingdao, ChinaWater-rich sand is a common stratum in marine underground engineering. Grouting is the most common method for solving geological disasters in water-rich sand. However, the marine environment differs greatly from the land environment. The erosion and seepage of seawater ion cause significant deterioration of grouted body, which reduces the physical and mechanical properties of grouted body. The maintenance of grouted body performance is the guarantee of long-term safe operation of the tunnel in the marine environment. In order to solve the problem of long-life grouting design for sand layer in seawater environment, an accelerated test of grouted body erosion under seawater erosion environment is designed to study the mesomorphological characteristics of seawater erosion on grouted body erosion and to reveal the mechanism of seawater erosion and solids. The evolution law of grouting plus solid strength under different slurry water-cement ratios and different seawater erosion time conditions is analyzed. The results show that the grouting plus solid effective time for water-cement ratios of 0.8 : 1, 1 : 1, 1.4 : 1, and 2 : 1 is 75a, 60a, 30a, and 15a; the index of strength degradation ratio of seawater environment to grouting plus solids is proposed, and the quantitative relationship between seawater erosion time and grouting plus solids strength is established, which provides theoretical basis for sand layer grouting reinforcement in seawater environment. We hope to provide some reference for the design and construction of sand grouting in seawater environment.http://dx.doi.org/10.1155/2021/6329257 |
| spellingShingle | Hongbo Wang Zhipeng Li Xiaoguo Wang Qingsong Zhang Lianzhen Zhang Study on Grouted Body Deterioration Mechanism of Sand Layer in Seawater Environment Advances in Materials Science and Engineering |
| title | Study on Grouted Body Deterioration Mechanism of Sand Layer in Seawater Environment |
| title_full | Study on Grouted Body Deterioration Mechanism of Sand Layer in Seawater Environment |
| title_fullStr | Study on Grouted Body Deterioration Mechanism of Sand Layer in Seawater Environment |
| title_full_unstemmed | Study on Grouted Body Deterioration Mechanism of Sand Layer in Seawater Environment |
| title_short | Study on Grouted Body Deterioration Mechanism of Sand Layer in Seawater Environment |
| title_sort | study on grouted body deterioration mechanism of sand layer in seawater environment |
| url | http://dx.doi.org/10.1155/2021/6329257 |
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