Study on the Mix of Slurry Membrane for Soil Conditioning of EPB Shield and Its Application Effect in Water-Rich Gravel Strata
The water inrush and large surface settlement encountered by EPB shield crossing water-rich gravel layer have attracted much attention. Based on the section tunnel engineering of the Inner Mongolia University South Campus Station-Xilin Park Station of line 2 of Hohhot Rail Transit, the optimum mix p...
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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/10.1155/2022/7751053 |
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| author | Jinpeng Zhao Zhongsheng Tan Rongsen Yu Aidong Jia Chao Qu |
| author_facet | Jinpeng Zhao Zhongsheng Tan Rongsen Yu Aidong Jia Chao Qu |
| author_sort | Jinpeng Zhao |
| collection | DOAJ |
| description | The water inrush and large surface settlement encountered by EPB shield crossing water-rich gravel layer have attracted much attention. Based on the section tunnel engineering of the Inner Mongolia University South Campus Station-Xilin Park Station of line 2 of Hohhot Rail Transit, the optimum mix proportion of bentonite slurry and foam diluent for forming slurry membrane in water-rich gravel stratum was studied in this study at first. The characteristics of conditioned soil were analyzed in combination with slag soil. The water plugging effect and surface settlement with or without slurry membrane were investigated with numerical simulation. The numerical model has been effectively verified by comparing the field monitoring and numerical simulation of surface settlement value. Further, the water shutoff mechanism of the slurry membrane is revealed. The setting of the slurry membrane exhibited a good water plugging effect and effectively decreased the surface settlement. The construction method of “water plugging with a slurry membrane” proposed in this study could powerfully combine the respective advantages of EPB shield and slurry balance shield, ensuring the safety, high quality, and high efficiency of tunnel construction. |
| format | Article |
| id | doaj-art-e78af76c5841494aab979495d8f09e77 |
| 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-e78af76c5841494aab979495d8f09e772025-02-03T01:09:52ZengWileyAdvances in Civil Engineering1687-80942022-01-01202210.1155/2022/7751053Study on the Mix of Slurry Membrane for Soil Conditioning of EPB Shield and Its Application Effect in Water-Rich Gravel StrataJinpeng Zhao0Zhongsheng Tan1Rongsen Yu2Aidong Jia3Chao Qu4Key Laboratory for Urban Underground Engineering of Ministry of EducationKey Laboratory for Urban Underground Engineering of Ministry of EducationKey Laboratory for Urban Underground Engineering of Ministry of EducationHohhot Urban Rail Transit Construction Management Co, Ltd.China Railway 16th Bureau Group Beijing Rail Transit Engineering Construction Co., Ltd.The water inrush and large surface settlement encountered by EPB shield crossing water-rich gravel layer have attracted much attention. Based on the section tunnel engineering of the Inner Mongolia University South Campus Station-Xilin Park Station of line 2 of Hohhot Rail Transit, the optimum mix proportion of bentonite slurry and foam diluent for forming slurry membrane in water-rich gravel stratum was studied in this study at first. The characteristics of conditioned soil were analyzed in combination with slag soil. The water plugging effect and surface settlement with or without slurry membrane were investigated with numerical simulation. The numerical model has been effectively verified by comparing the field monitoring and numerical simulation of surface settlement value. Further, the water shutoff mechanism of the slurry membrane is revealed. The setting of the slurry membrane exhibited a good water plugging effect and effectively decreased the surface settlement. The construction method of “water plugging with a slurry membrane” proposed in this study could powerfully combine the respective advantages of EPB shield and slurry balance shield, ensuring the safety, high quality, and high efficiency of tunnel construction.http://dx.doi.org/10.1155/2022/7751053 |
| spellingShingle | Jinpeng Zhao Zhongsheng Tan Rongsen Yu Aidong Jia Chao Qu Study on the Mix of Slurry Membrane for Soil Conditioning of EPB Shield and Its Application Effect in Water-Rich Gravel Strata Advances in Civil Engineering |
| title | Study on the Mix of Slurry Membrane for Soil Conditioning of EPB Shield and Its Application Effect in Water-Rich Gravel Strata |
| title_full | Study on the Mix of Slurry Membrane for Soil Conditioning of EPB Shield and Its Application Effect in Water-Rich Gravel Strata |
| title_fullStr | Study on the Mix of Slurry Membrane for Soil Conditioning of EPB Shield and Its Application Effect in Water-Rich Gravel Strata |
| title_full_unstemmed | Study on the Mix of Slurry Membrane for Soil Conditioning of EPB Shield and Its Application Effect in Water-Rich Gravel Strata |
| title_short | Study on the Mix of Slurry Membrane for Soil Conditioning of EPB Shield and Its Application Effect in Water-Rich Gravel Strata |
| title_sort | study on the mix of slurry membrane for soil conditioning of epb shield and its application effect in water rich gravel strata |
| url | http://dx.doi.org/10.1155/2022/7751053 |
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