An Experimental Study on the Solidification Treatment of Debris Flow Siltation
In recent years, the resulting siltation from railway debris flow disasters has seriously affected the normal use of railway traffic lines and brought great challenges to rescue work. In view of this, we used an orthogonal test scheme to prepare different types of debris flow accumulation and carrie...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/19/6860 |
| _version_ | 1797478317494894592 |
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| author | Fengyu Gu Linrong Xu Na Su |
| author_facet | Fengyu Gu Linrong Xu Na Su |
| author_sort | Fengyu Gu |
| collection | DOAJ |
| description | In recent years, the resulting siltation from railway debris flow disasters has seriously affected the normal use of railway traffic lines and brought great challenges to rescue work. In view of this, we used an orthogonal test scheme to prepare different types of debris flow accumulation and carried out penetration resistance tests in order to explore the effects of different types of curing agents, the amount of curing agent added, the moisture content of debris flow siltation, and the grain gradation of debris flow sediment on the solidification strength of debris flow siltation. We also utilized scanning electron microscopy (SEM) to observe the microstructure and potential curing mechanism of the samples treated with different curing agents in attempt to discern the reasons for their different levels of strength. Our results show that the each of four curing agents tested can effectively improve the solidification strength of the siltation. Furthermore, we found that the type of curing agent had the largest impact on the curing strength of the siltation, followed by the moisture content of the siltation itself, the amount of curing agent added, and particle size. To achieve the best results, we recommend using 14% sulfoaluminate cement as the curing agent. |
| first_indexed | 2024-03-09T21:30:15Z |
| format | Article |
| id | doaj.art-2c84fde30ac445e5993aa6d2f618de73 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T21:30:15Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-2c84fde30ac445e5993aa6d2f618de732023-11-23T20:58:01ZengMDPI AGMaterials1996-19442022-10-011519686010.3390/ma15196860An Experimental Study on the Solidification Treatment of Debris Flow SiltationFengyu Gu0Linrong Xu1Na Su2School of Civil Engineering, Central South University, Changsha 410075, ChinaSchool of Civil Engineering, Central South University, Changsha 410075, ChinaSchool of Civil Engineering, Central South University, Changsha 410075, ChinaIn recent years, the resulting siltation from railway debris flow disasters has seriously affected the normal use of railway traffic lines and brought great challenges to rescue work. In view of this, we used an orthogonal test scheme to prepare different types of debris flow accumulation and carried out penetration resistance tests in order to explore the effects of different types of curing agents, the amount of curing agent added, the moisture content of debris flow siltation, and the grain gradation of debris flow sediment on the solidification strength of debris flow siltation. We also utilized scanning electron microscopy (SEM) to observe the microstructure and potential curing mechanism of the samples treated with different curing agents in attempt to discern the reasons for their different levels of strength. Our results show that the each of four curing agents tested can effectively improve the solidification strength of the siltation. Furthermore, we found that the type of curing agent had the largest impact on the curing strength of the siltation, followed by the moisture content of the siltation itself, the amount of curing agent added, and particle size. To achieve the best results, we recommend using 14% sulfoaluminate cement as the curing agent.https://www.mdpi.com/1996-1944/15/19/6860debris flowsiltationreinforcement treatmentstrengthmicroscopic mechanism |
| spellingShingle | Fengyu Gu Linrong Xu Na Su An Experimental Study on the Solidification Treatment of Debris Flow Siltation Materials debris flow siltation reinforcement treatment strength microscopic mechanism |
| title | An Experimental Study on the Solidification Treatment of Debris Flow Siltation |
| title_full | An Experimental Study on the Solidification Treatment of Debris Flow Siltation |
| title_fullStr | An Experimental Study on the Solidification Treatment of Debris Flow Siltation |
| title_full_unstemmed | An Experimental Study on the Solidification Treatment of Debris Flow Siltation |
| title_short | An Experimental Study on the Solidification Treatment of Debris Flow Siltation |
| title_sort | experimental study on the solidification treatment of debris flow siltation |
| topic | debris flow siltation reinforcement treatment strength microscopic mechanism |
| url | https://www.mdpi.com/1996-1944/15/19/6860 |
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