Analysis of Necessity and Feasibility for Ground Improvement in Warm and Ice-Rich Permafrost Regions
Characterized by low bearing capacity and high compressibility, warm and ice-rich frozen soil is a kind of problematic soil, which makes the original frozen ground formed by of that unreliable to meet the stability requirements of engineering infrastructures and foundations in permafrost regions. Wi...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/7652371 |
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| _version_ | 1832552264420556800 |
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| author | Honglei Wang Hu Zhang Mingtang Chai Jianming Zhang Zhizhong Sun Guoyu Li |
| author_facet | Honglei Wang Hu Zhang Mingtang Chai Jianming Zhang Zhizhong Sun Guoyu Li |
| author_sort | Honglei Wang |
| collection | DOAJ |
| description | Characterized by low bearing capacity and high compressibility, warm and ice-rich frozen soil is a kind of problematic soil, which makes the original frozen ground formed by of that unreliable to meet the stability requirements of engineering infrastructures and foundations in permafrost regions. With the design and construction of major projects along the Qinghai-Tibet Engineering Corridor (QTEC), such as expressway and airport runway, it is a great challenge to favor the stability of overlying structures by formulating the proper engineering design principles and developing the valid engineering supporting techniques. The investigations carried out in recent years indicated that warm and ice-rich permafrost foundations were widespread, climate warming was significant, and the stability of existing engineering structures was poor, along the QTEC. When the warm and ice-rich frozen ground is used as the foundation soil, the implementation of ground improvement is an alternative measure to enhance the bearing capacity of foundation soil and eliminate the settlement of structures during operation, in order to guarantee the long-term stability of the structures. Based on the key factors determining the physicomechanical properties of frozen soil, an innovative idea of stabilizing the warm and ice-rich frozen soil based on chemical stabilization is proposed in this study, and then, an in situ ground improvement technique is introduced. This study intends to explore the feasibility of ground improvement in warm and ice-rich permafrost regions along the QTEC based on in situ chemical stabilization and provide the technical support and scientific reference to prevent and mitigate the hazards in the construction of major projects in the future. |
| format | Article |
| id | doaj-art-e7d86bf1f93f4f3787e4b5817e42af52 |
| institution | Kabale University |
| issn | 1687-8094 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-e7d86bf1f93f4f3787e4b5817e42af522025-02-03T05:59:11ZengWileyAdvances in Civil Engineering1687-80942022-01-01202210.1155/2022/7652371Analysis of Necessity and Feasibility for Ground Improvement in Warm and Ice-Rich Permafrost RegionsHonglei Wang0Hu Zhang1Mingtang Chai2Jianming Zhang3Zhizhong Sun4Guoyu Li5State Key Laboratory of Frozen Soil EngineeringState Key Laboratory of Frozen Soil EngineeringSchool of Civil and Hydraulic EngineeringState Key Laboratory of Frozen Soil EngineeringState Key Laboratory of Frozen Soil EngineeringState Key Laboratory of Frozen Soil EngineeringCharacterized by low bearing capacity and high compressibility, warm and ice-rich frozen soil is a kind of problematic soil, which makes the original frozen ground formed by of that unreliable to meet the stability requirements of engineering infrastructures and foundations in permafrost regions. With the design and construction of major projects along the Qinghai-Tibet Engineering Corridor (QTEC), such as expressway and airport runway, it is a great challenge to favor the stability of overlying structures by formulating the proper engineering design principles and developing the valid engineering supporting techniques. The investigations carried out in recent years indicated that warm and ice-rich permafrost foundations were widespread, climate warming was significant, and the stability of existing engineering structures was poor, along the QTEC. When the warm and ice-rich frozen ground is used as the foundation soil, the implementation of ground improvement is an alternative measure to enhance the bearing capacity of foundation soil and eliminate the settlement of structures during operation, in order to guarantee the long-term stability of the structures. Based on the key factors determining the physicomechanical properties of frozen soil, an innovative idea of stabilizing the warm and ice-rich frozen soil based on chemical stabilization is proposed in this study, and then, an in situ ground improvement technique is introduced. This study intends to explore the feasibility of ground improvement in warm and ice-rich permafrost regions along the QTEC based on in situ chemical stabilization and provide the technical support and scientific reference to prevent and mitigate the hazards in the construction of major projects in the future.http://dx.doi.org/10.1155/2022/7652371 |
| spellingShingle | Honglei Wang Hu Zhang Mingtang Chai Jianming Zhang Zhizhong Sun Guoyu Li Analysis of Necessity and Feasibility for Ground Improvement in Warm and Ice-Rich Permafrost Regions Advances in Civil Engineering |
| title | Analysis of Necessity and Feasibility for Ground Improvement in Warm and Ice-Rich Permafrost Regions |
| title_full | Analysis of Necessity and Feasibility for Ground Improvement in Warm and Ice-Rich Permafrost Regions |
| title_fullStr | Analysis of Necessity and Feasibility for Ground Improvement in Warm and Ice-Rich Permafrost Regions |
| title_full_unstemmed | Analysis of Necessity and Feasibility for Ground Improvement in Warm and Ice-Rich Permafrost Regions |
| title_short | Analysis of Necessity and Feasibility for Ground Improvement in Warm and Ice-Rich Permafrost Regions |
| title_sort | analysis of necessity and feasibility for ground improvement in warm and ice rich permafrost regions |
| url | http://dx.doi.org/10.1155/2022/7652371 |
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