Effect Of EPS Protection On The Buried Pipe Under Stratum Settlement
Expanded polystyrene (EPS) geofoam is a light and deformable geosynthetic that can reduce the pressure on the pipe by surrounding soil. The protective effect of geofoam bocks protection on the buried pipe under stratum settlement was investigated. The effect of settlement displacement, diameter-thic...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Tamkang University Press
2023-04-01
|
| Series: | Journal of Applied Science and Engineering |
| Subjects: | |
| Online Access: | http://jase.tku.edu.tw/articles/jase-202311-26-11-0003 |
| _version_ | 1797836814292090880 |
|---|---|
| author | Yun Zeng Jie Zhang Rui Xie Ting Zheng Hui Dong Xiaobo Liu Xiaohua Chen |
| author_facet | Yun Zeng Jie Zhang Rui Xie Ting Zheng Hui Dong Xiaobo Liu Xiaohua Chen |
| author_sort | Yun Zeng |
| collection | DOAJ |
| description | Expanded polystyrene (EPS) geofoam is a light and deformable geosynthetic that can reduce the pressure on the pipe by surrounding soil. The protective effect of geofoam bocks protection on the buried pipe under stratum settlement was investigated. The effect of settlement displacement, diameter-thickness ratio, internal pressure, surrounding soil, and EPS thickness on the axial strain and ovalisation of pipe were analyzed. The results show that the axial strain and ovalisation of pipe protected with EPS are smaller than that in soil. With the increase of the pipe diameter-thickness ratio, the axial strain and ovalisation of pipe with or without protection increase. With the increase of internal pressure, the buckling mode of pipe buried in soil changes from collapse to wrinkle gradually, but the ovalisation changes of pipe protected with EPS is small. When the surrounding soil is rock, buckling occurred in the without protection is more obvious. The safety of the pipeline is better with thicker EPS. |
| first_indexed | 2024-04-09T15:16:02Z |
| format | Article |
| id | doaj.art-5e1cf64f1e444094a1fdcd09cfb376c9 |
| institution | Directory Open Access Journal |
| issn | 2708-9967 2708-9975 |
| language | English |
| last_indexed | 2024-04-09T15:16:02Z |
| publishDate | 2023-04-01 |
| publisher | Tamkang University Press |
| record_format | Article |
| series | Journal of Applied Science and Engineering |
| spelling | doaj.art-5e1cf64f1e444094a1fdcd09cfb376c92023-04-29T19:45:24ZengTamkang University PressJournal of Applied Science and Engineering2708-99672708-99752023-04-0126101537154410.6180/jase.202311_26(11).0003Effect Of EPS Protection On The Buried Pipe Under Stratum SettlementYun Zeng0Jie Zhang1Rui Xie2Ting Zheng3Hui Dong4Xiaobo Liu5Xiaohua Chen6School of Mechatronic Engineering, Oil and Gas Equipment Technology Sharing and Service Platform of Sichuan Province, Southwest Petroleum University, Chengdu 610500, ChinaSchool of Mechatronic Engineering, Oil and Gas Equipment Technology Sharing and Service Platform of Sichuan Province, Southwest Petroleum University, Chengdu 610500, ChinaDazhou Industrial Technology Institute of Intelligent Manufacturing, Dazhou 635000, ChinaSchool of Mechatronic Engineering, Oil and Gas Equipment Technology Sharing and Service Platform of Sichuan Province, Southwest Petroleum University, Chengdu 610500, ChinaSichuan Vocational College of Information Technology, Intelligent Control Academy, guangyuan 628040, ChinaKunming Oil and Gas Transmission Branch of Southwest Pipeline Company, National Pipe Network Group, Kunming 650000, ChinaNational Pipe Network Group Southwest Pipeline Co., Ltd., Chenqdu 610094, ChinaExpanded polystyrene (EPS) geofoam is a light and deformable geosynthetic that can reduce the pressure on the pipe by surrounding soil. The protective effect of geofoam bocks protection on the buried pipe under stratum settlement was investigated. The effect of settlement displacement, diameter-thickness ratio, internal pressure, surrounding soil, and EPS thickness on the axial strain and ovalisation of pipe were analyzed. The results show that the axial strain and ovalisation of pipe protected with EPS are smaller than that in soil. With the increase of the pipe diameter-thickness ratio, the axial strain and ovalisation of pipe with or without protection increase. With the increase of internal pressure, the buckling mode of pipe buried in soil changes from collapse to wrinkle gradually, but the ovalisation changes of pipe protected with EPS is small. When the surrounding soil is rock, buckling occurred in the without protection is more obvious. The safety of the pipeline is better with thicker EPS.http://jase.tku.edu.tw/articles/jase-202311-26-11-0003geofoamburied pipesettlement areanumerical methodbuckling |
| spellingShingle | Yun Zeng Jie Zhang Rui Xie Ting Zheng Hui Dong Xiaobo Liu Xiaohua Chen Effect Of EPS Protection On The Buried Pipe Under Stratum Settlement Journal of Applied Science and Engineering geofoam buried pipe settlement area numerical method buckling |
| title | Effect Of EPS Protection On The Buried Pipe Under Stratum Settlement |
| title_full | Effect Of EPS Protection On The Buried Pipe Under Stratum Settlement |
| title_fullStr | Effect Of EPS Protection On The Buried Pipe Under Stratum Settlement |
| title_full_unstemmed | Effect Of EPS Protection On The Buried Pipe Under Stratum Settlement |
| title_short | Effect Of EPS Protection On The Buried Pipe Under Stratum Settlement |
| title_sort | effect of eps protection on the buried pipe under stratum settlement |
| topic | geofoam buried pipe settlement area numerical method buckling |
| url | http://jase.tku.edu.tw/articles/jase-202311-26-11-0003 |
| work_keys_str_mv | AT yunzeng effectofepsprotectionontheburiedpipeunderstratumsettlement AT jiezhang effectofepsprotectionontheburiedpipeunderstratumsettlement AT ruixie effectofepsprotectionontheburiedpipeunderstratumsettlement AT tingzheng effectofepsprotectionontheburiedpipeunderstratumsettlement AT huidong effectofepsprotectionontheburiedpipeunderstratumsettlement AT xiaoboliu effectofepsprotectionontheburiedpipeunderstratumsettlement AT xiaohuachen effectofepsprotectionontheburiedpipeunderstratumsettlement |