Anisotropy of $ Q_{2} $ loess in the Baijiapo Tunnel on the Lanyu Railway, China
Abstract The predominately, wind-derived deposits forming the Loess Plateau in China are known as Wucheng loess ($ Q_{1} $), Lishi loess ($ Q_{2} $), and Manlan loess ($ Q_{3} $). Only $ Q_{3} $ loess has been intensely studied in densely populated areas, revealing that the structural strength of th...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Liang, Qingguo [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2015 |
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| Schlagwörter: |
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| Anmerkung: |
© Springer-Verlag Berlin Heidelberg 2015 |
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| Übergeordnetes Werk: |
Enthalten in: Bulletin of engineering geology and the environment - Springer Berlin Heidelberg, 1998, 75(2015), 1 vom: 03. Feb., Seite 109-124 |
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| Übergeordnetes Werk: |
volume:75 ; year:2015 ; number:1 ; day:03 ; month:02 ; pages:109-124 |
| Links: |
|---|
| DOI / URN: |
10.1007/s10064-015-0723-z |
|---|
| Katalog-ID: |
OLC2061688071 |
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| 520 | |a Abstract The predominately, wind-derived deposits forming the Loess Plateau in China are known as Wucheng loess ($ Q_{1} $), Lishi loess ($ Q_{2} $), and Manlan loess ($ Q_{3} $). Only $ Q_{3} $ loess has been intensely studied in densely populated areas, revealing that the structural strength of these aeolian sediments is directly related to their variations (anisotropy) in compressibility, water content, and, particularly, vertical jointing. Knowing the stability level of $ Q_{3} $ aeolian sediment is important in tunnel constructions through other types of loess. The research reported here has been mainly centered on obtaining the values of consolidation, unconfined compressive strength (UCS), direct and triaxial shear tests, Poisson’s ratio, and modulus of deformation of the $ Q_{2} $ loess in the Baijiapo Tunnel on the Lanyu Railway, Lanzhou, China. Included among the numerous results of these comprehensive laboratory tests are: the mean index of liquidity is 0.19; and the maximum modulus of compression in the vertical direction is 1.17. Furthermore, vertical and horizontal samples showed brittle fracture; the ratios of UCS and modulus of deformation in the vertical to the horizontal directions are 1.34 and 2.45, respectively. The wide range of various values of Lishi loess properties are closely related to variation in the density of the vertical jointing system. A new method for calculating comprehensive shear parameters is proposed and the related parameters for the Baijiapo Tunnel are recommended. | ||
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10.1007/s10064-015-0723-z doi (DE-627)OLC2061688071 (DE-He213)s10064-015-0723-z-p DE-627 ger DE-627 rakwb eng 550 600 VZ Liang, Qingguo verfasserin aut Anisotropy of $ Q_{2} $ loess in the Baijiapo Tunnel on the Lanyu Railway, China 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag Berlin Heidelberg 2015 Abstract The predominately, wind-derived deposits forming the Loess Plateau in China are known as Wucheng loess ($ Q_{1} $), Lishi loess ($ Q_{2} $), and Manlan loess ($ Q_{3} $). Only $ Q_{3} $ loess has been intensely studied in densely populated areas, revealing that the structural strength of these aeolian sediments is directly related to their variations (anisotropy) in compressibility, water content, and, particularly, vertical jointing. Knowing the stability level of $ Q_{3} $ aeolian sediment is important in tunnel constructions through other types of loess. The research reported here has been mainly centered on obtaining the values of consolidation, unconfined compressive strength (UCS), direct and triaxial shear tests, Poisson’s ratio, and modulus of deformation of the $ Q_{2} $ loess in the Baijiapo Tunnel on the Lanyu Railway, Lanzhou, China. Included among the numerous results of these comprehensive laboratory tests are: the mean index of liquidity is 0.19; and the maximum modulus of compression in the vertical direction is 1.17. Furthermore, vertical and horizontal samples showed brittle fracture; the ratios of UCS and modulus of deformation in the vertical to the horizontal directions are 1.34 and 2.45, respectively. The wide range of various values of Lishi loess properties are closely related to variation in the density of the vertical jointing system. A new method for calculating comprehensive shear parameters is proposed and the related parameters for the Baijiapo Tunnel are recommended. Q loess Anisotropy Joints in loess Tunnel in loess Li, Jie aut Wu, Xuyang aut Zhou, Annan aut Enthalten in Bulletin of engineering geology and the environment Springer Berlin Heidelberg, 1998 75(2015), 1 vom: 03. Feb., Seite 109-124 (DE-627)24891880X (DE-600)1444574-8 (DE-576)068745818 1435-9529 nnns volume:75 year:2015 number:1 day:03 month:02 pages:109-124 https://doi.org/10.1007/s10064-015-0723-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_65 GBV_ILN_70 GBV_ILN_267 GBV_ILN_2018 GBV_ILN_4277 AR 75 2015 1 03 02 109-124 |
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10.1007/s10064-015-0723-z doi (DE-627)OLC2061688071 (DE-He213)s10064-015-0723-z-p DE-627 ger DE-627 rakwb eng 550 600 VZ Liang, Qingguo verfasserin aut Anisotropy of $ Q_{2} $ loess in the Baijiapo Tunnel on the Lanyu Railway, China 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag Berlin Heidelberg 2015 Abstract The predominately, wind-derived deposits forming the Loess Plateau in China are known as Wucheng loess ($ Q_{1} $), Lishi loess ($ Q_{2} $), and Manlan loess ($ Q_{3} $). Only $ Q_{3} $ loess has been intensely studied in densely populated areas, revealing that the structural strength of these aeolian sediments is directly related to their variations (anisotropy) in compressibility, water content, and, particularly, vertical jointing. Knowing the stability level of $ Q_{3} $ aeolian sediment is important in tunnel constructions through other types of loess. The research reported here has been mainly centered on obtaining the values of consolidation, unconfined compressive strength (UCS), direct and triaxial shear tests, Poisson’s ratio, and modulus of deformation of the $ Q_{2} $ loess in the Baijiapo Tunnel on the Lanyu Railway, Lanzhou, China. Included among the numerous results of these comprehensive laboratory tests are: the mean index of liquidity is 0.19; and the maximum modulus of compression in the vertical direction is 1.17. Furthermore, vertical and horizontal samples showed brittle fracture; the ratios of UCS and modulus of deformation in the vertical to the horizontal directions are 1.34 and 2.45, respectively. The wide range of various values of Lishi loess properties are closely related to variation in the density of the vertical jointing system. A new method for calculating comprehensive shear parameters is proposed and the related parameters for the Baijiapo Tunnel are recommended. Q loess Anisotropy Joints in loess Tunnel in loess Li, Jie aut Wu, Xuyang aut Zhou, Annan aut Enthalten in Bulletin of engineering geology and the environment Springer Berlin Heidelberg, 1998 75(2015), 1 vom: 03. Feb., Seite 109-124 (DE-627)24891880X (DE-600)1444574-8 (DE-576)068745818 1435-9529 nnns volume:75 year:2015 number:1 day:03 month:02 pages:109-124 https://doi.org/10.1007/s10064-015-0723-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_65 GBV_ILN_70 GBV_ILN_267 GBV_ILN_2018 GBV_ILN_4277 AR 75 2015 1 03 02 109-124 |
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10.1007/s10064-015-0723-z doi (DE-627)OLC2061688071 (DE-He213)s10064-015-0723-z-p DE-627 ger DE-627 rakwb eng 550 600 VZ Liang, Qingguo verfasserin aut Anisotropy of $ Q_{2} $ loess in the Baijiapo Tunnel on the Lanyu Railway, China 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag Berlin Heidelberg 2015 Abstract The predominately, wind-derived deposits forming the Loess Plateau in China are known as Wucheng loess ($ Q_{1} $), Lishi loess ($ Q_{2} $), and Manlan loess ($ Q_{3} $). Only $ Q_{3} $ loess has been intensely studied in densely populated areas, revealing that the structural strength of these aeolian sediments is directly related to their variations (anisotropy) in compressibility, water content, and, particularly, vertical jointing. Knowing the stability level of $ Q_{3} $ aeolian sediment is important in tunnel constructions through other types of loess. The research reported here has been mainly centered on obtaining the values of consolidation, unconfined compressive strength (UCS), direct and triaxial shear tests, Poisson’s ratio, and modulus of deformation of the $ Q_{2} $ loess in the Baijiapo Tunnel on the Lanyu Railway, Lanzhou, China. Included among the numerous results of these comprehensive laboratory tests are: the mean index of liquidity is 0.19; and the maximum modulus of compression in the vertical direction is 1.17. Furthermore, vertical and horizontal samples showed brittle fracture; the ratios of UCS and modulus of deformation in the vertical to the horizontal directions are 1.34 and 2.45, respectively. The wide range of various values of Lishi loess properties are closely related to variation in the density of the vertical jointing system. A new method for calculating comprehensive shear parameters is proposed and the related parameters for the Baijiapo Tunnel are recommended. Q loess Anisotropy Joints in loess Tunnel in loess Li, Jie aut Wu, Xuyang aut Zhou, Annan aut Enthalten in Bulletin of engineering geology and the environment Springer Berlin Heidelberg, 1998 75(2015), 1 vom: 03. Feb., Seite 109-124 (DE-627)24891880X (DE-600)1444574-8 (DE-576)068745818 1435-9529 nnns volume:75 year:2015 number:1 day:03 month:02 pages:109-124 https://doi.org/10.1007/s10064-015-0723-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_65 GBV_ILN_70 GBV_ILN_267 GBV_ILN_2018 GBV_ILN_4277 AR 75 2015 1 03 02 109-124 |
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10.1007/s10064-015-0723-z doi (DE-627)OLC2061688071 (DE-He213)s10064-015-0723-z-p DE-627 ger DE-627 rakwb eng 550 600 VZ Liang, Qingguo verfasserin aut Anisotropy of $ Q_{2} $ loess in the Baijiapo Tunnel on the Lanyu Railway, China 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag Berlin Heidelberg 2015 Abstract The predominately, wind-derived deposits forming the Loess Plateau in China are known as Wucheng loess ($ Q_{1} $), Lishi loess ($ Q_{2} $), and Manlan loess ($ Q_{3} $). Only $ Q_{3} $ loess has been intensely studied in densely populated areas, revealing that the structural strength of these aeolian sediments is directly related to their variations (anisotropy) in compressibility, water content, and, particularly, vertical jointing. Knowing the stability level of $ Q_{3} $ aeolian sediment is important in tunnel constructions through other types of loess. The research reported here has been mainly centered on obtaining the values of consolidation, unconfined compressive strength (UCS), direct and triaxial shear tests, Poisson’s ratio, and modulus of deformation of the $ Q_{2} $ loess in the Baijiapo Tunnel on the Lanyu Railway, Lanzhou, China. Included among the numerous results of these comprehensive laboratory tests are: the mean index of liquidity is 0.19; and the maximum modulus of compression in the vertical direction is 1.17. Furthermore, vertical and horizontal samples showed brittle fracture; the ratios of UCS and modulus of deformation in the vertical to the horizontal directions are 1.34 and 2.45, respectively. The wide range of various values of Lishi loess properties are closely related to variation in the density of the vertical jointing system. A new method for calculating comprehensive shear parameters is proposed and the related parameters for the Baijiapo Tunnel are recommended. Q loess Anisotropy Joints in loess Tunnel in loess Li, Jie aut Wu, Xuyang aut Zhou, Annan aut Enthalten in Bulletin of engineering geology and the environment Springer Berlin Heidelberg, 1998 75(2015), 1 vom: 03. Feb., Seite 109-124 (DE-627)24891880X (DE-600)1444574-8 (DE-576)068745818 1435-9529 nnns volume:75 year:2015 number:1 day:03 month:02 pages:109-124 https://doi.org/10.1007/s10064-015-0723-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_65 GBV_ILN_70 GBV_ILN_267 GBV_ILN_2018 GBV_ILN_4277 AR 75 2015 1 03 02 109-124 |
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10.1007/s10064-015-0723-z doi (DE-627)OLC2061688071 (DE-He213)s10064-015-0723-z-p DE-627 ger DE-627 rakwb eng 550 600 VZ Liang, Qingguo verfasserin aut Anisotropy of $ Q_{2} $ loess in the Baijiapo Tunnel on the Lanyu Railway, China 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag Berlin Heidelberg 2015 Abstract The predominately, wind-derived deposits forming the Loess Plateau in China are known as Wucheng loess ($ Q_{1} $), Lishi loess ($ Q_{2} $), and Manlan loess ($ Q_{3} $). Only $ Q_{3} $ loess has been intensely studied in densely populated areas, revealing that the structural strength of these aeolian sediments is directly related to their variations (anisotropy) in compressibility, water content, and, particularly, vertical jointing. Knowing the stability level of $ Q_{3} $ aeolian sediment is important in tunnel constructions through other types of loess. The research reported here has been mainly centered on obtaining the values of consolidation, unconfined compressive strength (UCS), direct and triaxial shear tests, Poisson’s ratio, and modulus of deformation of the $ Q_{2} $ loess in the Baijiapo Tunnel on the Lanyu Railway, Lanzhou, China. Included among the numerous results of these comprehensive laboratory tests are: the mean index of liquidity is 0.19; and the maximum modulus of compression in the vertical direction is 1.17. Furthermore, vertical and horizontal samples showed brittle fracture; the ratios of UCS and modulus of deformation in the vertical to the horizontal directions are 1.34 and 2.45, respectively. The wide range of various values of Lishi loess properties are closely related to variation in the density of the vertical jointing system. A new method for calculating comprehensive shear parameters is proposed and the related parameters for the Baijiapo Tunnel are recommended. Q loess Anisotropy Joints in loess Tunnel in loess Li, Jie aut Wu, Xuyang aut Zhou, Annan aut Enthalten in Bulletin of engineering geology and the environment Springer Berlin Heidelberg, 1998 75(2015), 1 vom: 03. Feb., Seite 109-124 (DE-627)24891880X (DE-600)1444574-8 (DE-576)068745818 1435-9529 nnns volume:75 year:2015 number:1 day:03 month:02 pages:109-124 https://doi.org/10.1007/s10064-015-0723-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_65 GBV_ILN_70 GBV_ILN_267 GBV_ILN_2018 GBV_ILN_4277 AR 75 2015 1 03 02 109-124 |
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| author |
Liang, Qingguo |
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550 600 VZ Anisotropy of $ Q_{2} $ loess in the Baijiapo Tunnel on the Lanyu Railway, China Q loess Anisotropy Joints in loess Tunnel in loess |
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Anisotropy of $ Q_{2} $ loess in the Baijiapo Tunnel on the Lanyu Railway, China |
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Anisotropy of $ Q_{2} $ loess in the Baijiapo Tunnel on the Lanyu Railway, China |
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Liang, Qingguo |
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Bulletin of engineering geology and the environment |
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2015 |
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Liang, Qingguo Li, Jie Wu, Xuyang Zhou, Annan |
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anisotropy of $ q_{2} $ loess in the baijiapo tunnel on the lanyu railway, china |
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Anisotropy of $ Q_{2} $ loess in the Baijiapo Tunnel on the Lanyu Railway, China |
| abstract |
Abstract The predominately, wind-derived deposits forming the Loess Plateau in China are known as Wucheng loess ($ Q_{1} $), Lishi loess ($ Q_{2} $), and Manlan loess ($ Q_{3} $). Only $ Q_{3} $ loess has been intensely studied in densely populated areas, revealing that the structural strength of these aeolian sediments is directly related to their variations (anisotropy) in compressibility, water content, and, particularly, vertical jointing. Knowing the stability level of $ Q_{3} $ aeolian sediment is important in tunnel constructions through other types of loess. The research reported here has been mainly centered on obtaining the values of consolidation, unconfined compressive strength (UCS), direct and triaxial shear tests, Poisson’s ratio, and modulus of deformation of the $ Q_{2} $ loess in the Baijiapo Tunnel on the Lanyu Railway, Lanzhou, China. Included among the numerous results of these comprehensive laboratory tests are: the mean index of liquidity is 0.19; and the maximum modulus of compression in the vertical direction is 1.17. Furthermore, vertical and horizontal samples showed brittle fracture; the ratios of UCS and modulus of deformation in the vertical to the horizontal directions are 1.34 and 2.45, respectively. The wide range of various values of Lishi loess properties are closely related to variation in the density of the vertical jointing system. A new method for calculating comprehensive shear parameters is proposed and the related parameters for the Baijiapo Tunnel are recommended. © Springer-Verlag Berlin Heidelberg 2015 |
| abstractGer |
Abstract The predominately, wind-derived deposits forming the Loess Plateau in China are known as Wucheng loess ($ Q_{1} $), Lishi loess ($ Q_{2} $), and Manlan loess ($ Q_{3} $). Only $ Q_{3} $ loess has been intensely studied in densely populated areas, revealing that the structural strength of these aeolian sediments is directly related to their variations (anisotropy) in compressibility, water content, and, particularly, vertical jointing. Knowing the stability level of $ Q_{3} $ aeolian sediment is important in tunnel constructions through other types of loess. The research reported here has been mainly centered on obtaining the values of consolidation, unconfined compressive strength (UCS), direct and triaxial shear tests, Poisson’s ratio, and modulus of deformation of the $ Q_{2} $ loess in the Baijiapo Tunnel on the Lanyu Railway, Lanzhou, China. Included among the numerous results of these comprehensive laboratory tests are: the mean index of liquidity is 0.19; and the maximum modulus of compression in the vertical direction is 1.17. Furthermore, vertical and horizontal samples showed brittle fracture; the ratios of UCS and modulus of deformation in the vertical to the horizontal directions are 1.34 and 2.45, respectively. The wide range of various values of Lishi loess properties are closely related to variation in the density of the vertical jointing system. A new method for calculating comprehensive shear parameters is proposed and the related parameters for the Baijiapo Tunnel are recommended. © Springer-Verlag Berlin Heidelberg 2015 |
| abstract_unstemmed |
Abstract The predominately, wind-derived deposits forming the Loess Plateau in China are known as Wucheng loess ($ Q_{1} $), Lishi loess ($ Q_{2} $), and Manlan loess ($ Q_{3} $). Only $ Q_{3} $ loess has been intensely studied in densely populated areas, revealing that the structural strength of these aeolian sediments is directly related to their variations (anisotropy) in compressibility, water content, and, particularly, vertical jointing. Knowing the stability level of $ Q_{3} $ aeolian sediment is important in tunnel constructions through other types of loess. The research reported here has been mainly centered on obtaining the values of consolidation, unconfined compressive strength (UCS), direct and triaxial shear tests, Poisson’s ratio, and modulus of deformation of the $ Q_{2} $ loess in the Baijiapo Tunnel on the Lanyu Railway, Lanzhou, China. Included among the numerous results of these comprehensive laboratory tests are: the mean index of liquidity is 0.19; and the maximum modulus of compression in the vertical direction is 1.17. Furthermore, vertical and horizontal samples showed brittle fracture; the ratios of UCS and modulus of deformation in the vertical to the horizontal directions are 1.34 and 2.45, respectively. The wide range of various values of Lishi loess properties are closely related to variation in the density of the vertical jointing system. A new method for calculating comprehensive shear parameters is proposed and the related parameters for the Baijiapo Tunnel are recommended. © Springer-Verlag Berlin Heidelberg 2015 |
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Anisotropy of $ Q_{2} $ loess in the Baijiapo Tunnel on the Lanyu Railway, China |
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