EFFECTIVE COUNTERMEASURES TO PREVENT SOFT GROUND DEFORMATION CAUSED BY CONSTRUCTING WIDENING EMBANKMENT
The deformation properties of soft ground caused by the embankment construction for widening the existing single railway embankment have not been understood in detail. In this study, therefore, a centrifuge model test was performed to grasp deformation properties of soft ground for such construction...
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| Veröffentlicht in: | Doboku Gakkai Ronbunshu. C, Chiken Kougaku = Journal of Japan Society of Civil Engineers, Ser. C, Geosphere Engineering Ser. C (Geosphere Engineering), 2018, Vol.74(4), pp.408-423 |
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| container_title | Doboku Gakkai Ronbunshu. C, Chiken Kougaku = Journal of Japan Society of Civil Engineers, Ser. C, Geosphere Engineering |
| container_volume | 74 |
| creator | WATANABE, Kenji KUDO, Atsuhiro KOJIMA, Kenichi MORIKAWA, Yoshiyuki TAKAHASHI, Hidenori SHIMADA, Takafumi SATO, Taketo |
| description | The deformation properties of soft ground caused by the embankment construction for widening the existing single railway embankment have not been understood in detail. In this study, therefore, a centrifuge model test was performed to grasp deformation properties of soft ground for such construction mentioned above. We established suitable model preparation techniques for centrifuge tests to realize real condition at site, such as stress path of soft ground below embankment and construction procedure of the widening embankment and so on. The experiments revealed that large horizontal and vertical deformation occurred around bottom edge of the existing embankment, which induced the uplift of ground surface in front of the widening embankment and subsidence of existing embankment at the crest. Furthermore, shaking table model tests were also performed after the complete consolidation of the soft ground. Large deformation of the soft ground around bottom edge and in front of the widening embankment was observed. Based on these tests results, new countermeasure using wall type improvement method in combination with cement-mixed gravely soil slab is proposed. |
| doi_str_mv | 10.2208/jscejge.74.408 |
| format | Article |
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In this study, therefore, a centrifuge model test was performed to grasp deformation properties of soft ground for such construction mentioned above. We established suitable model preparation techniques for centrifuge tests to realize real condition at site, such as stress path of soft ground below embankment and construction procedure of the widening embankment and so on. The experiments revealed that large horizontal and vertical deformation occurred around bottom edge of the existing embankment, which induced the uplift of ground surface in front of the widening embankment and subsidence of existing embankment at the crest. Furthermore, shaking table model tests were also performed after the complete consolidation of the soft ground. Large deformation of the soft ground around bottom edge and in front of the widening embankment was observed. Based on these tests results, new countermeasure using wall type improvement method in combination with cement-mixed gravely soil slab is proposed.</description><identifier>EISSN: 2185-6516</identifier><identifier>DOI: 10.2208/jscejge.74.408</identifier><language>jpn</language><publisher>Tokyo: Japan Society of Civil Engineers</publisher><subject>Centrifuge model ; centrifuge model test ; Deformation effects ; Deformation mechanisms ; eccentric load ; Model testing ; Railway construction ; Railway engineering ; Shake table tests ; soft clayey ground ; Soft ground ; Uplift ; wall type improvement ; Widening ; widening embankment</subject><ispartof>Journal of Japan Society of Civil Engineers, Ser. 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Furthermore, shaking table model tests were also performed after the complete consolidation of the soft ground. Large deformation of the soft ground around bottom edge and in front of the widening embankment was observed. Based on these tests results, new countermeasure using wall type improvement method in combination with cement-mixed gravely soil slab is proposed.</description><subject>Centrifuge model</subject><subject>centrifuge model test</subject><subject>Deformation effects</subject><subject>Deformation mechanisms</subject><subject>eccentric load</subject><subject>Model testing</subject><subject>Railway construction</subject><subject>Railway engineering</subject><subject>Shake table tests</subject><subject>soft clayey ground</subject><subject>Soft ground</subject><subject>Uplift</subject><subject>wall type improvement</subject><subject>Widening</subject><subject>widening embankment</subject><issn>2185-6516</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNo9kE1Pg0AQhjcmJja1V8-beKayH8BypLBUYgEDS42nzcIutaS2FdqD_160jZeZSd5nnkkGgAdkzzG22VM3NKbbmLlH59RmN2CCEXMs10HuHZgNw7a2bRe7CBE0ARsexzwUyZrDMK8ywYuUB2VV8BKKHL4WfM0zAcs8FnBZjEAEIx7nRRqIJM9gGFQlj-DifVzOSlFUoylbwrck4tnvwNNFkL2ko-Ie3LZqN5jZtU-BiLkIn61VvkzCYGV1zEUWM3Vbs0ajltSeZrrGDdPMR4oorYxjU6dmDlHG9X2GNPVZS11NW6U95BnWUDIFjxftsT98nc1wkt3h3O_HixJjgpFDfAeNVHChuuGkNkYe--2n6r-l6k_bZmfk9YHSo5L-FZv9Z82H6qXZkx9W1Ghg</recordid><startdate>2018</startdate><enddate>2018</enddate><creator>WATANABE, Kenji</creator><creator>KUDO, Atsuhiro</creator><creator>KOJIMA, Kenichi</creator><creator>MORIKAWA, Yoshiyuki</creator><creator>TAKAHASHI, Hidenori</creator><creator>SHIMADA, Takafumi</creator><creator>SATO, Taketo</creator><general>Japan Society of Civil Engineers</general><general>Japan Science and Technology Agency</general><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>2018</creationdate><title>EFFECTIVE COUNTERMEASURES TO PREVENT SOFT GROUND DEFORMATION CAUSED BY CONSTRUCTING WIDENING EMBANKMENT</title><author>WATANABE, Kenji ; KUDO, Atsuhiro ; KOJIMA, Kenichi ; MORIKAWA, Yoshiyuki ; TAKAHASHI, Hidenori ; SHIMADA, Takafumi ; SATO, Taketo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-j861-8ebfb8cd1f3b7d8db2c8d891a3adae5045b853ae69981d498f46d4fad717e8c43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>jpn</language><creationdate>2018</creationdate><topic>Centrifuge model</topic><topic>centrifuge model test</topic><topic>Deformation effects</topic><topic>Deformation mechanisms</topic><topic>eccentric load</topic><topic>Model testing</topic><topic>Railway construction</topic><topic>Railway engineering</topic><topic>Shake table tests</topic><topic>soft clayey ground</topic><topic>Soft ground</topic><topic>Uplift</topic><topic>wall type improvement</topic><topic>Widening</topic><topic>widening embankment</topic><toplevel>online_resources</toplevel><creatorcontrib>WATANABE, Kenji</creatorcontrib><creatorcontrib>KUDO, Atsuhiro</creatorcontrib><creatorcontrib>KOJIMA, Kenichi</creatorcontrib><creatorcontrib>MORIKAWA, Yoshiyuki</creatorcontrib><creatorcontrib>TAKAHASHI, Hidenori</creatorcontrib><creatorcontrib>SHIMADA, Takafumi</creatorcontrib><creatorcontrib>SATO, Taketo</creatorcontrib><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Doboku Gakkai Ronbunshu. C, Chiken Kougaku = Journal of Japan Society of Civil Engineers, Ser. C, Geosphere Engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>WATANABE, Kenji</au><au>KUDO, Atsuhiro</au><au>KOJIMA, Kenichi</au><au>MORIKAWA, Yoshiyuki</au><au>TAKAHASHI, Hidenori</au><au>SHIMADA, Takafumi</au><au>SATO, Taketo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>EFFECTIVE COUNTERMEASURES TO PREVENT SOFT GROUND DEFORMATION CAUSED BY CONSTRUCTING WIDENING EMBANKMENT</atitle><jtitle>Doboku Gakkai Ronbunshu. C, Chiken Kougaku = Journal of Japan Society of Civil Engineers, Ser. C, Geosphere Engineering</jtitle><addtitle>J. JSCE, Ser. C</addtitle><date>2018</date><risdate>2018</risdate><volume>74</volume><issue>4</issue><spage>408</spage><epage>423</epage><pages>408-423</pages><eissn>2185-6516</eissn><abstract>The deformation properties of soft ground caused by the embankment construction for widening the existing single railway embankment have not been understood in detail. In this study, therefore, a centrifuge model test was performed to grasp deformation properties of soft ground for such construction mentioned above. We established suitable model preparation techniques for centrifuge tests to realize real condition at site, such as stress path of soft ground below embankment and construction procedure of the widening embankment and so on. The experiments revealed that large horizontal and vertical deformation occurred around bottom edge of the existing embankment, which induced the uplift of ground surface in front of the widening embankment and subsidence of existing embankment at the crest. Furthermore, shaking table model tests were also performed after the complete consolidation of the soft ground. Large deformation of the soft ground around bottom edge and in front of the widening embankment was observed. Based on these tests results, new countermeasure using wall type improvement method in combination with cement-mixed gravely soil slab is proposed.</abstract><cop>Tokyo</cop><pub>Japan Society of Civil Engineers</pub><doi>10.2208/jscejge.74.408</doi><tpages>16</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Journal of Japan Society of Civil Engineers, Ser. C (Geosphere Engineering), 2018, Vol.74(4), pp.408-423 |
| issn | 2185-6516 |
| language | jpn |
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| source | Alma/SFX Local Collection |
| subjects | Centrifuge model centrifuge model test Deformation effects Deformation mechanisms eccentric load Model testing Railway construction Railway engineering Shake table tests soft clayey ground Soft ground Uplift wall type improvement Widening widening embankment |
| title | EFFECTIVE COUNTERMEASURES TO PREVENT SOFT GROUND DEFORMATION CAUSED BY CONSTRUCTING WIDENING EMBANKMENT |
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