Temperature Field Variation Law of Low Exothermic Polymer Grouting Material in Repairing Void Damage of Frozen Soil Subgrade
In this study, the self-developed grouting mold was used to study the heat release characteristics of different density polymer grouting material under different temperature conditions. The spatial distribution characteristics of the frozen soil subgrade temperature field under the effect of polymer...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/6670515 |
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| author | Bei Zhang Baolin Wang Yanhui Zhong Shuangjie Wang Xiaolong Li Shilun Wang |
| author_facet | Bei Zhang Baolin Wang Yanhui Zhong Shuangjie Wang Xiaolong Li Shilun Wang |
| author_sort | Bei Zhang |
| collection | DOAJ |
| description | In this study, the self-developed grouting mold was used to study the heat release characteristics of different density polymer grouting material under different temperature conditions. The spatial distribution characteristics of the frozen soil subgrade temperature field under the effect of polymer grouting repair were analyzed. Further, the rules governing the temperature change of a frozen soil subgrade monitoring point under the effect of polymer grouting repair were studied. The heat transfer mechanism of polymer grouting material in frozen soil subgrade was revealed. The results showed that in the void region of the frozen soil subgrade, a discontinuity zone appeared in the temperature field distribution isotherm due to the effect of voids; this zone exhibited a layered radioactive distribution along the two sides of the void area. Furthermore, during the exothermic stage of the curing reaction, the temperature distribution isotherms changed from a layered radioactive distribution to a ring distribution that decreased from the inside to outside. During the natural cooling process, the peripheral temperature of the ring isotherm first decreased and a negative temperature ring-shaped isotherm gradually formed. Finally, the upper boundary of the influence of the heat energy released by the curing reaction on the frozen soil subgrade temperature field was determined to be 30 cm, and the lower boundary was 20 cm. |
| format | Article |
| id | doaj-art-365ca82c491c4ead8f1ccff89a0fd990 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-365ca82c491c4ead8f1ccff89a0fd9902025-02-03T05:49:17ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422021-01-01202110.1155/2021/66705156670515Temperature Field Variation Law of Low Exothermic Polymer Grouting Material in Repairing Void Damage of Frozen Soil SubgradeBei Zhang0Baolin Wang1Yanhui Zhong2Shuangjie Wang3Xiaolong Li4Shilun Wang5School of Water Conservancy Engnieering, Zhengzhou University, Zhengzhou 450001, ChinaSchool of Water Conservancy Engnieering, Zhengzhou University, Zhengzhou 450001, ChinaSchool of Water Conservancy Engnieering, Zhengzhou University, Zhengzhou 450001, ChinaCCCC First Highway Consultants Co.,Ltd., Xi'an, ChinaSchool of Water Conservancy Engnieering, Zhengzhou University, Zhengzhou 450001, ChinaSchool of Water Conservancy Engnieering, Zhengzhou University, Zhengzhou 450001, ChinaIn this study, the self-developed grouting mold was used to study the heat release characteristics of different density polymer grouting material under different temperature conditions. The spatial distribution characteristics of the frozen soil subgrade temperature field under the effect of polymer grouting repair were analyzed. Further, the rules governing the temperature change of a frozen soil subgrade monitoring point under the effect of polymer grouting repair were studied. The heat transfer mechanism of polymer grouting material in frozen soil subgrade was revealed. The results showed that in the void region of the frozen soil subgrade, a discontinuity zone appeared in the temperature field distribution isotherm due to the effect of voids; this zone exhibited a layered radioactive distribution along the two sides of the void area. Furthermore, during the exothermic stage of the curing reaction, the temperature distribution isotherms changed from a layered radioactive distribution to a ring distribution that decreased from the inside to outside. During the natural cooling process, the peripheral temperature of the ring isotherm first decreased and a negative temperature ring-shaped isotherm gradually formed. Finally, the upper boundary of the influence of the heat energy released by the curing reaction on the frozen soil subgrade temperature field was determined to be 30 cm, and the lower boundary was 20 cm.http://dx.doi.org/10.1155/2021/6670515 |
| spellingShingle | Bei Zhang Baolin Wang Yanhui Zhong Shuangjie Wang Xiaolong Li Shilun Wang Temperature Field Variation Law of Low Exothermic Polymer Grouting Material in Repairing Void Damage of Frozen Soil Subgrade Advances in Materials Science and Engineering |
| title | Temperature Field Variation Law of Low Exothermic Polymer Grouting Material in Repairing Void Damage of Frozen Soil Subgrade |
| title_full | Temperature Field Variation Law of Low Exothermic Polymer Grouting Material in Repairing Void Damage of Frozen Soil Subgrade |
| title_fullStr | Temperature Field Variation Law of Low Exothermic Polymer Grouting Material in Repairing Void Damage of Frozen Soil Subgrade |
| title_full_unstemmed | Temperature Field Variation Law of Low Exothermic Polymer Grouting Material in Repairing Void Damage of Frozen Soil Subgrade |
| title_short | Temperature Field Variation Law of Low Exothermic Polymer Grouting Material in Repairing Void Damage of Frozen Soil Subgrade |
| title_sort | temperature field variation law of low exothermic polymer grouting material in repairing void damage of frozen soil subgrade |
| url | http://dx.doi.org/10.1155/2021/6670515 |
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