A review on the buried pipeline responses to tunneling-induced ground settlements
The expansion of cities and urban areas has resulted in an increased demand for environmental and economic transport and services infrastructure. Tunneling, as one of mankind's engineering underground constructions, is taking place close to buried and surface structures such as gas, water, and...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Yazd University
2023-12-01
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| Series: | Analytical and Numerical Methods in Mining Engineering |
| Subjects: | |
| Online Access: | https://anm.yazd.ac.ir/article_3272_14e4cdeb287cbcd1a2be44b3d5572c3a.pdf |
| _version_ | 1797347836572991488 |
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| author | Hadi Mahmoudi Ghorban Khandouzi Mohammad Hossein Khosravi |
| author_facet | Hadi Mahmoudi Ghorban Khandouzi Mohammad Hossein Khosravi |
| author_sort | Hadi Mahmoudi |
| collection | DOAJ |
| description | The expansion of cities and urban areas has resulted in an increased demand for environmental and economic transport and services infrastructure. Tunneling, as one of mankind's engineering underground constructions, is taking place close to buried and surface structures such as gas, water, and wastewater pipelines. This paper reviews soil-pipe interaction behavior, tunneling-induced ground settlement, governing equations of soil-pipe settlement, the effects of tunnel depth, size, soil relative density, and volume loss on vertical and horizontal displacement, settlement, shear strain, dilation, pipe bending, and gap formation. A comprehensive literature review, analysis of published papers, and investigations were conducted to study the effect of various parameters on pipeline behavior. The results were obtained by studying the effect of tunneling on ground and pipeline settlement, soil-pipe interaction mechanism, and centrifuge physical modeling. The achieved results of investigations show that the settlement profile follows a Gaussian curve with a wider settlement trough in clay compared to sand. When the tunnel and pipeline are perpendicular to each other, maximum bending strain in the pipeline occurs and the pipeline settlement is symmetrical. The friction effect and formation of contraction and expansion zones lead to the difference between soil volume loss near the surface and tunnel volume loss. When the pipe-soil relative stiffness increases, the pipe bending is less than the maximum soil bending. Also, ground settlement, shear strain, pipeline displacement, and pipeline bending are greater in flexible pipes than in rigid pipelines. This is due to the low resistance of flexible pipelines against bending and settlement caused by tunnel excavation. Positive pipeline bending (downward) occurs near the tunnel axis, which is marked by sagging, but negative bending (upward) occurs at a distance from the tunnel axis, which is known as hogging. In twin tunnels, by increasing the tunnel spacing the pipeline settlement profile changes from a V-shape to a U-shape and finally a W-shape. Understanding soil-pipe interaction behavior, tunneling-induced ground settlement, and the effects of different parameters on displacement, strain field, settlement, pipe bending, and gap formation beneath pipelines is crucial for engineers evaluating pipeline behavior. Additionally, comprehending these issues can help designers make informed decisions during tunnel construction. |
| first_indexed | 2024-03-08T11:54:41Z |
| format | Article |
| id | doaj.art-ac64b0b34af9477ebcfd0d2d2b4468bf |
| institution | Directory Open Access Journal |
| issn | 2251-6565 2676-6795 |
| language | English |
| last_indexed | 2024-03-08T11:54:41Z |
| publishDate | 2023-12-01 |
| publisher | Yazd University |
| record_format | Article |
| series | Analytical and Numerical Methods in Mining Engineering |
| spelling | doaj.art-ac64b0b34af9477ebcfd0d2d2b4468bf2024-01-24T04:54:04ZengYazd UniversityAnalytical and Numerical Methods in Mining Engineering2251-65652676-67952023-12-011337699010.22034/anm.2024.20501.16073272A review on the buried pipeline responses to tunneling-induced ground settlementsHadi Mahmoudi0Ghorban Khandouzi1Mohammad Hossein Khosravi2Dept. of Mining Engineering, Technical College. University of Tehran, Tehran, IranDept. of Mining Engineering, Technical College. University of Tehran, Tehran, IranDept. of Mining Engineering, Faculty of Engineering, University of Birjand, Birjand, IranThe expansion of cities and urban areas has resulted in an increased demand for environmental and economic transport and services infrastructure. Tunneling, as one of mankind's engineering underground constructions, is taking place close to buried and surface structures such as gas, water, and wastewater pipelines. This paper reviews soil-pipe interaction behavior, tunneling-induced ground settlement, governing equations of soil-pipe settlement, the effects of tunnel depth, size, soil relative density, and volume loss on vertical and horizontal displacement, settlement, shear strain, dilation, pipe bending, and gap formation. A comprehensive literature review, analysis of published papers, and investigations were conducted to study the effect of various parameters on pipeline behavior. The results were obtained by studying the effect of tunneling on ground and pipeline settlement, soil-pipe interaction mechanism, and centrifuge physical modeling. The achieved results of investigations show that the settlement profile follows a Gaussian curve with a wider settlement trough in clay compared to sand. When the tunnel and pipeline are perpendicular to each other, maximum bending strain in the pipeline occurs and the pipeline settlement is symmetrical. The friction effect and formation of contraction and expansion zones lead to the difference between soil volume loss near the surface and tunnel volume loss. When the pipe-soil relative stiffness increases, the pipe bending is less than the maximum soil bending. Also, ground settlement, shear strain, pipeline displacement, and pipeline bending are greater in flexible pipes than in rigid pipelines. This is due to the low resistance of flexible pipelines against bending and settlement caused by tunnel excavation. Positive pipeline bending (downward) occurs near the tunnel axis, which is marked by sagging, but negative bending (upward) occurs at a distance from the tunnel axis, which is known as hogging. In twin tunnels, by increasing the tunnel spacing the pipeline settlement profile changes from a V-shape to a U-shape and finally a W-shape. Understanding soil-pipe interaction behavior, tunneling-induced ground settlement, and the effects of different parameters on displacement, strain field, settlement, pipe bending, and gap formation beneath pipelines is crucial for engineers evaluating pipeline behavior. Additionally, comprehending these issues can help designers make informed decisions during tunnel construction.https://anm.yazd.ac.ir/article_3272_14e4cdeb287cbcd1a2be44b3d5572c3a.pdfurban areaservice infrastructurestunnelingpipelinesground settlement |
| spellingShingle | Hadi Mahmoudi Ghorban Khandouzi Mohammad Hossein Khosravi A review on the buried pipeline responses to tunneling-induced ground settlements Analytical and Numerical Methods in Mining Engineering urban area service infrastructures tunneling pipelines ground settlement |
| title | A review on the buried pipeline responses to tunneling-induced ground settlements |
| title_full | A review on the buried pipeline responses to tunneling-induced ground settlements |
| title_fullStr | A review on the buried pipeline responses to tunneling-induced ground settlements |
| title_full_unstemmed | A review on the buried pipeline responses to tunneling-induced ground settlements |
| title_short | A review on the buried pipeline responses to tunneling-induced ground settlements |
| title_sort | review on the buried pipeline responses to tunneling induced ground settlements |
| topic | urban area service infrastructures tunneling pipelines ground settlement |
| url | https://anm.yazd.ac.ir/article_3272_14e4cdeb287cbcd1a2be44b3d5572c3a.pdf |
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