Shuichi Yamamoto, Shin Sato, Shimura Tomoyuki, E. Morales, T. Nishimura, H. Owada
Bentonite-based engineered barrier materials transfer from unsaturated state as emplaced to saturated state after closure of deep geological disposal facilities for radioactive waste, while decrease in saturation could occur due to heat and gas generation from the wastes. Modelling for mechanical characteristics and water retention properties of unsaturated “bentonite-based engineered barrier materials” are indispensable to predict such important transient behavior. In this study the following characteristics are obtained based on controlled-suction oedometer or triaxial compression tests : i) swelling and shrinking caused by respectively wetting and drying, ii) consolidation under constant matric suctions, iii) shear strength depending on matric suction, iv) hysteresis of water retention. In addition, applicability of existing constitutive models such as Barcelona basic model, Komine’s model, vG model, and suction stress concept are discussed based on these results.
{"title":"MECHANICAL CHARACTERISTICS AND WATER RETENTION PROPERTIES OF UNSATURATED “BENTONITE-BASED ENGINEERED BARRIER MATERIALS” BASED ON CONTROLLED-SUCTION TESTS","authors":"Shuichi Yamamoto, Shin Sato, Shimura Tomoyuki, E. Morales, T. Nishimura, H. Owada","doi":"10.2208/JSCEJGE.75.257","DOIUrl":"https://doi.org/10.2208/JSCEJGE.75.257","url":null,"abstract":"Bentonite-based engineered barrier materials transfer from unsaturated state as emplaced to saturated state after closure of deep geological disposal facilities for radioactive waste, while decrease in saturation could occur due to heat and gas generation from the wastes. Modelling for mechanical characteristics and water retention properties of unsaturated “bentonite-based engineered barrier materials” are indispensable to predict such important transient behavior. In this study the following characteristics are obtained based on controlled-suction oedometer or triaxial compression tests : i) swelling and shrinking caused by respectively wetting and drying, ii) consolidation under constant matric suctions, iii) shear strength depending on matric suction, iv) hysteresis of water retention. In addition, applicability of existing constitutive models such as Barcelona basic model, Komine’s model, vG model, and suction stress concept are discussed based on these results.","PeriodicalId":326143,"journal":{"name":"Journal of Japan Society of Civil Engineers, Ser. C (Geosphere Engineering)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123903472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.2208/jscejge.78.4_261
Yawji Oku, H. Dobashi, Noriyuki Horichi, J. Nagaya, Seungik Chang, A. Koizumi
{"title":"MEASURED DEFORMATIONS AND EXPECTED ANALYSIS CAUSED TO THE EXISTING TUNNEL DURING NEARBY CONSTRUCTION OF UPPER AND LOWER PARALLEL SHIELD TUNNELS","authors":"Yawji Oku, H. Dobashi, Noriyuki Horichi, J. Nagaya, Seungik Chang, A. Koizumi","doi":"10.2208/jscejge.78.4_261","DOIUrl":"https://doi.org/10.2208/jscejge.78.4_261","url":null,"abstract":"","PeriodicalId":326143,"journal":{"name":"Journal of Japan Society of Civil Engineers, Ser. C (Geosphere Engineering)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124982600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"SOME CONSIDERATION ON THE CAUSES OF CLIFF FAILURES OF RYUKYU LIMESTONE FORMATION IN RYUKYU ARCHIPELAGO AND THE ANALYSIS OF A RECENT CLIFF FAILURE","authors":"K. Horiuchi, Ö. Aydan, N. Tokashiki, N. Z. Nasiry","doi":"10.2208/jscejge.75.216","DOIUrl":"https://doi.org/10.2208/jscejge.75.216","url":null,"abstract":"","PeriodicalId":326143,"journal":{"name":"Journal of Japan Society of Civil Engineers, Ser. C (Geosphere Engineering)","volume":"172 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114745946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.2208/jscejge.78.3_225
S. Kawabata, Keita Matsuda, Toru Miura, Ryoji Hatakeyama, Koichi Yamanaka, E. Sekine
{"title":"EFFECT OF AUTOMATIC COMPACTORS ON DRY DENSITY AND STIFFNESS IN SOIL COMPACTION TESTS","authors":"S. Kawabata, Keita Matsuda, Toru Miura, Ryoji Hatakeyama, Koichi Yamanaka, E. Sekine","doi":"10.2208/jscejge.78.3_225","DOIUrl":"https://doi.org/10.2208/jscejge.78.3_225","url":null,"abstract":"","PeriodicalId":326143,"journal":{"name":"Journal of Japan Society of Civil Engineers, Ser. C (Geosphere Engineering)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123494974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Osamu Takahata, Takuya Harada, S. Miyaguchi, Mitsuru Kuwabara, Mariko Monma, T. Yasutaka, H. Komine
{"title":"EVALUATION OF RETARDING ACIDIFICATION FUNCTION IN ROAD EMBANKMENT STRUCTURES","authors":"Osamu Takahata, Takuya Harada, S. Miyaguchi, Mitsuru Kuwabara, Mariko Monma, T. Yasutaka, H. Komine","doi":"10.2208/jscejge.78.2_83","DOIUrl":"https://doi.org/10.2208/jscejge.78.2_83","url":null,"abstract":"","PeriodicalId":326143,"journal":{"name":"Journal of Japan Society of Civil Engineers, Ser. C (Geosphere Engineering)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128519633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.2208/jscejge.77.3_283
Hiromasa Iwai, Shumpei Yasui
{"title":"A LINEAR STABILITY ANALYSIS OF BIFURCATION PHENOMENA OF SUBMARINE LANDSLIDE","authors":"Hiromasa Iwai, Shumpei Yasui","doi":"10.2208/jscejge.77.3_283","DOIUrl":"https://doi.org/10.2208/jscejge.77.3_283","url":null,"abstract":"","PeriodicalId":326143,"journal":{"name":"Journal of Japan Society of Civil Engineers, Ser. C (Geosphere Engineering)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126862542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.2208/jscejge.78.4_306
N. Nakajima, Hisayuki Nakane, T. Hara
{"title":"A STUDY ON THE NATURE OF SEDIMENT RUNOFF IN ZERO-ORDER BASINS AT STEEP SLOPE AND EXTRACTING METHOD OF DANGEROUS BASINS","authors":"N. Nakajima, Hisayuki Nakane, T. Hara","doi":"10.2208/jscejge.78.4_306","DOIUrl":"https://doi.org/10.2208/jscejge.78.4_306","url":null,"abstract":"","PeriodicalId":326143,"journal":{"name":"Journal of Japan Society of Civil Engineers, Ser. C (Geosphere Engineering)","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123060282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.2208/jscejge.77.4_392
Daiki Watanabe, Shuji Moriguchi, K. Terada
{"title":"EFFECT OF PARTICLE SIZE DISTRIBUTIONS ON GRANULAR FLOW SIMULATIONS USING DISCRETE ELEMENT METHOD","authors":"Daiki Watanabe, Shuji Moriguchi, K. Terada","doi":"10.2208/jscejge.77.4_392","DOIUrl":"https://doi.org/10.2208/jscejge.77.4_392","url":null,"abstract":"","PeriodicalId":326143,"journal":{"name":"Journal of Japan Society of Civil Engineers, Ser. C (Geosphere Engineering)","volume":"4 3-4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114122122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.2208/jscejge.78.4_341
Shuta Kanazawa, S. Yamada, T. Kyoya
{"title":"NUMERICAL ANALYSIS OF SINGULAR GROUND DEFORMATION FOCUSING ON RATE DEPENDENT PROPERTY AND VELOCITY OF FORCED DISPLACEMENT","authors":"Shuta Kanazawa, S. Yamada, T. Kyoya","doi":"10.2208/jscejge.78.4_341","DOIUrl":"https://doi.org/10.2208/jscejge.78.4_341","url":null,"abstract":"","PeriodicalId":326143,"journal":{"name":"Journal of Japan Society of Civil Engineers, Ser. C (Geosphere Engineering)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131256930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.2208/jscejge.78.3_235
K. Kasama, Tatsuya Nagayama, Nobuhiko Hamaguchi, Y. Sugimura, T. Fujii, T. Kaneko, Koki Zen
{"title":"PERFORMANCE-BASED POST-EARTHQUAKE DEFORMATION VERIFACATION FOR GROUND IMPROVED BY PERMEATION GROUTING METHOD","authors":"K. Kasama, Tatsuya Nagayama, Nobuhiko Hamaguchi, Y. Sugimura, T. Fujii, T. Kaneko, Koki Zen","doi":"10.2208/jscejge.78.3_235","DOIUrl":"https://doi.org/10.2208/jscejge.78.3_235","url":null,"abstract":"","PeriodicalId":326143,"journal":{"name":"Journal of Japan Society of Civil Engineers, Ser. C (Geosphere Engineering)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131261553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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