Scour Protection of Submarine Pipelines Using Ionic Soil Stabilizer Solidified Soil
A novel scour protection approach for pipeline using the Ionic Soil Stabilizer (ISS) solidified soil was proposed in this study. The ISS-solidified slurry can be poured adjacent to the pipeline immediately after it was placed, or in the growing scour holes. In the present study, the first type was u...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/10/1/76 |
| _version_ | 1797492896881967104 |
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| author | Ruigeng Hu Xiuhai Wang Hongjun Liu Hao Leng |
| author_facet | Ruigeng Hu Xiuhai Wang Hongjun Liu Hao Leng |
| author_sort | Ruigeng Hu |
| collection | DOAJ |
| description | A novel scour protection approach for pipeline using the Ionic Soil Stabilizer (ISS) solidified soil was proposed in this study. The ISS-solidified slurry can be poured adjacent to the pipeline immediately after it was placed, or in the growing scour holes. In the present study, the first type was utilized as the scour protection layer around the pipeline. A series of laboratory flume tests were conducted to validate the protective capacity of ISS-solidified slurry for the pipeline in waves and combined waves and current. Then, the scanning electron microscope (SEM) tests and pore size tests were carried out, respectively, to investigate the mechanism of ISS-solidified slurry for scour protection around the pipeline. Finally, the effects of the ISS-solidified layer for liquefaction stability of non-cohesive subsoil were evaluated. The results indicated that the ISS-solidified slurry is a reliable, economic approach for scour protection around pipelines in the ocean environment. It is noteworthy that if a non-cohesive soil layer underlies the ISS-solidified slurry, it is vulnerable to suffer accumulated liquefaction due to the dense crust structure of the ISS-solidified layer, so the adverse effects for accumulated liquefaction should be considered carefully due to the set of the ISS-solidified layer. |
| first_indexed | 2024-03-10T01:11:16Z |
| format | Article |
| id | doaj.art-655f0c3483de4bb4884e353a9cb1d5b7 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T01:11:16Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-655f0c3483de4bb4884e353a9cb1d5b72023-11-23T14:16:36ZengMDPI AGJournal of Marine Science and Engineering2077-13122022-01-011017610.3390/jmse10010076Scour Protection of Submarine Pipelines Using Ionic Soil Stabilizer Solidified SoilRuigeng Hu0Xiuhai Wang1Hongjun Liu2Hao Leng3College of Environmental Science and Engineering, Ocean University of China, Qingdao 266000, ChinaCollege of Environmental Science and Engineering, Ocean University of China, Qingdao 266000, ChinaCollege of Environmental Science and Engineering, Ocean University of China, Qingdao 266000, ChinaCollege of Environmental Science and Engineering, Ocean University of China, Qingdao 266000, ChinaA novel scour protection approach for pipeline using the Ionic Soil Stabilizer (ISS) solidified soil was proposed in this study. The ISS-solidified slurry can be poured adjacent to the pipeline immediately after it was placed, or in the growing scour holes. In the present study, the first type was utilized as the scour protection layer around the pipeline. A series of laboratory flume tests were conducted to validate the protective capacity of ISS-solidified slurry for the pipeline in waves and combined waves and current. Then, the scanning electron microscope (SEM) tests and pore size tests were carried out, respectively, to investigate the mechanism of ISS-solidified slurry for scour protection around the pipeline. Finally, the effects of the ISS-solidified layer for liquefaction stability of non-cohesive subsoil were evaluated. The results indicated that the ISS-solidified slurry is a reliable, economic approach for scour protection around pipelines in the ocean environment. It is noteworthy that if a non-cohesive soil layer underlies the ISS-solidified slurry, it is vulnerable to suffer accumulated liquefaction due to the dense crust structure of the ISS-solidified layer, so the adverse effects for accumulated liquefaction should be considered carefully due to the set of the ISS-solidified layer.https://www.mdpi.com/2077-1312/10/1/76scour protectionpipelineionic soil stabilizer (ISS)scour tests |
| spellingShingle | Ruigeng Hu Xiuhai Wang Hongjun Liu Hao Leng Scour Protection of Submarine Pipelines Using Ionic Soil Stabilizer Solidified Soil Journal of Marine Science and Engineering scour protection pipeline ionic soil stabilizer (ISS) scour tests |
| title | Scour Protection of Submarine Pipelines Using Ionic Soil Stabilizer Solidified Soil |
| title_full | Scour Protection of Submarine Pipelines Using Ionic Soil Stabilizer Solidified Soil |
| title_fullStr | Scour Protection of Submarine Pipelines Using Ionic Soil Stabilizer Solidified Soil |
| title_full_unstemmed | Scour Protection of Submarine Pipelines Using Ionic Soil Stabilizer Solidified Soil |
| title_short | Scour Protection of Submarine Pipelines Using Ionic Soil Stabilizer Solidified Soil |
| title_sort | scour protection of submarine pipelines using ionic soil stabilizer solidified soil |
| topic | scour protection pipeline ionic soil stabilizer (ISS) scour tests |
| url | https://www.mdpi.com/2077-1312/10/1/76 |
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