Calculation method of thrust force of the embedded stabilizing piles under the overtop-sliding failure mode
Embedded piles act as an optimization structure compared with the traditional stabilizing pile. The determination of the thrust on the loading section is based mainly on the model test and numerical simulation, and there is a lack of in-depth theoretical analysis. For the bedrock-talus landslide rei...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Hydrogeology & Engineering Geology
2023-05-01
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| Series: | Shuiwen dizhi gongcheng dizhi |
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| Online Access: | https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202211007 |
| _version_ | 1827946763803164672 |
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| author | Yuping YAN |
| author_facet | Yuping YAN |
| author_sort | Yuping YAN |
| collection | DOAJ |
| description | Embedded piles act as an optimization structure compared with the traditional stabilizing pile. The determination of the thrust on the loading section is based mainly on the model test and numerical simulation, and there is a lack of in-depth theoretical analysis. For the bedrock-talus landslide reinforced by embedded piles, according to the potential overtop-sliding failure mode, the slide surface can be divided into top and bottom sections by the position of pile top, and the horizontal resultant force of the top section can be obtained by integration, which is the so-called thrust of the embedded section. Similarly, the force on the bottom section of the overtop-sliding surface can also be obtained. Based on the limit equilibrium theory, the force analysis of the sliding mass enclosed by the bottom sliding surface and the load section of the pile can be carried out, and the thrust on the loaded section can also be obtained. Example analyses show that the thrust of the embedded section and the loaded section obtained by the theoretical method are very consistent with the results of FLAC3D, the resultant force of the loading section decreases nonlinearly with the increase of the ratio, while the resultant force of the embedded section presents an opposite trend. With the increase of the embedded ratio from 0 to 0.67, the thrust ratio of embedded section and loading section increases slowly from 0 to 0.3−0.5. With the increase of embedded ratio from 0.67 to 0.8, the ratio increases sharply to 1.47−2.12. Generally, the thrust of embedded section is less than that of loaded section. The theoretical research of the thrust of the embedded pile is of great practical significance for the optimization of the pile internal force and the determination of the pile embedded depth, which will promote the further application of this structure. |
| first_indexed | 2024-03-13T11:06:40Z |
| format | Article |
| id | doaj.art-934ed7710af84dacb92c69b6b9daa737 |
| institution | Directory Open Access Journal |
| issn | 1000-3665 |
| language | zho |
| last_indexed | 2024-03-13T11:06:40Z |
| publishDate | 2023-05-01 |
| publisher | Editorial Office of Hydrogeology & Engineering Geology |
| record_format | Article |
| series | Shuiwen dizhi gongcheng dizhi |
| spelling | doaj.art-934ed7710af84dacb92c69b6b9daa7372023-05-16T06:25:43ZzhoEditorial Office of Hydrogeology & Engineering GeologyShuiwen dizhi gongcheng dizhi1000-36652023-05-01503768410.16030/j.cnki.issn.1000-3665.202211007202211007Calculation method of thrust force of the embedded stabilizing piles under the overtop-sliding failure modeYuping YAN0China Railway First Survey and Design Institute Group Co. Ltd., Xi’an, Shaanxi 710043, ChinaEmbedded piles act as an optimization structure compared with the traditional stabilizing pile. The determination of the thrust on the loading section is based mainly on the model test and numerical simulation, and there is a lack of in-depth theoretical analysis. For the bedrock-talus landslide reinforced by embedded piles, according to the potential overtop-sliding failure mode, the slide surface can be divided into top and bottom sections by the position of pile top, and the horizontal resultant force of the top section can be obtained by integration, which is the so-called thrust of the embedded section. Similarly, the force on the bottom section of the overtop-sliding surface can also be obtained. Based on the limit equilibrium theory, the force analysis of the sliding mass enclosed by the bottom sliding surface and the load section of the pile can be carried out, and the thrust on the loaded section can also be obtained. Example analyses show that the thrust of the embedded section and the loaded section obtained by the theoretical method are very consistent with the results of FLAC3D, the resultant force of the loading section decreases nonlinearly with the increase of the ratio, while the resultant force of the embedded section presents an opposite trend. With the increase of the embedded ratio from 0 to 0.67, the thrust ratio of embedded section and loading section increases slowly from 0 to 0.3−0.5. With the increase of embedded ratio from 0.67 to 0.8, the ratio increases sharply to 1.47−2.12. Generally, the thrust of embedded section is less than that of loaded section. The theoretical research of the thrust of the embedded pile is of great practical significance for the optimization of the pile internal force and the determination of the pile embedded depth, which will promote the further application of this structure.https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202211007embedded stabilizing pilesovertop-sliding failurethrust of the embedded sectionthrust of the loaded sectionthe limit equilibrium theory |
| spellingShingle | Yuping YAN Calculation method of thrust force of the embedded stabilizing piles under the overtop-sliding failure mode Shuiwen dizhi gongcheng dizhi embedded stabilizing piles overtop-sliding failure thrust of the embedded section thrust of the loaded section the limit equilibrium theory |
| title | Calculation method of thrust force of the embedded stabilizing piles under the overtop-sliding failure mode |
| title_full | Calculation method of thrust force of the embedded stabilizing piles under the overtop-sliding failure mode |
| title_fullStr | Calculation method of thrust force of the embedded stabilizing piles under the overtop-sliding failure mode |
| title_full_unstemmed | Calculation method of thrust force of the embedded stabilizing piles under the overtop-sliding failure mode |
| title_short | Calculation method of thrust force of the embedded stabilizing piles under the overtop-sliding failure mode |
| title_sort | calculation method of thrust force of the embedded stabilizing piles under the overtop sliding failure mode |
| topic | embedded stabilizing piles overtop-sliding failure thrust of the embedded section thrust of the loaded section the limit equilibrium theory |
| url | https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202211007 |
| work_keys_str_mv | AT yupingyan calculationmethodofthrustforceoftheembeddedstabilizingpilesundertheovertopslidingfailuremode |