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Doboku Gakkai Ronbunshuu C最新文献

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DEVELOPMENT OF EXPERIMENTAL APPARATUS TO GRASP COUPLING BEHAVIOR OF WATER FLOW AND DEFORMATION OF ROCK MASS AND STUDY ON ELUCIDATION OF THE COUPLING BEHAVIOR 岩体水流与变形耦合特性试验装置的研制及耦合特性解析研究
Doboku Gakkai Ronbunshuu C Pub Date : 1900-01-01 DOI: 10.2208/JSCEJC.64.843
H. Yoshida, Takuya Yamasaki, J. Inoue
{"title":"DEVELOPMENT OF EXPERIMENTAL APPARATUS TO GRASP COUPLING BEHAVIOR OF WATER FLOW AND DEFORMATION OF ROCK MASS AND STUDY ON ELUCIDATION OF THE COUPLING BEHAVIOR","authors":"H. Yoshida, Takuya Yamasaki, J. Inoue","doi":"10.2208/JSCEJC.64.843","DOIUrl":"https://doi.org/10.2208/JSCEJC.64.843","url":null,"abstract":"わが国の岩盤は，一般に，多かれ少なかれ亀裂群を含むことが知られているが，こうした亀裂性岩盤においては，その変形および透水特性は包含される亀裂に支配される．したがって，亀裂性岩盤に対する数値解析手法を構築するためには，亀裂の変形挙動や透水挙動に関するメカニズムを抽出する必要がある．しかしながら，岩盤の変形にともなう透水性能の変化を捉えた事例はほとんどなく，また，こうした挙動を捉えようにも的確な試験機器が存在しないのが現実である．そこで本研究では，亀裂性岩盤の水－応力連成試験を行うために新たに専用の試験装置を開発し，試験を通して連成挙動を捉え，そのメカニズムについて考察を加えた．その結果，材料中に発生あるいは存在する亀裂の変形が，透水性に影響を与えることが判明した．","PeriodicalId":131805,"journal":{"name":"Doboku Gakkai Ronbunshuu C","volume":"54 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":"121248256","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}
引用次数: 0
ECONOMIC EVALUATION OF REINFORCED EARTH SLOPES USING LIFE CYCLE COST UNDER SEISMIC CONDITION 地震条件下加筋土边坡寿命周期成本经济评价
Doboku Gakkai Ronbunshuu C Pub Date : 1900-01-01 DOI: 10.2208/JSCEJC.65.506
M. Shinoda, T. Yonezawa, O. Maruyama, K. Kojima
{"title":"ECONOMIC EVALUATION OF REINFORCED EARTH SLOPES USING LIFE CYCLE COST UNDER SEISMIC CONDITION","authors":"M. Shinoda, T. Yonezawa, O. Maruyama, K. Kojima","doi":"10.2208/JSCEJC.65.506","DOIUrl":"https://doi.org/10.2208/JSCEJC.65.506","url":null,"abstract":"従来，工法の選定を行う際には，初期建設費に重点がおかれ，所用安全率を満たしていれば安価な工法が採用されてきた．しかしながら，最近，構造物の性能を経済性と壊れにくさの両面から評価する手法が注目されている．本研究では，補強材により補強していない盛土（無補強盛土）と補強材により補強した盛土（補強盛土）の性能を定量的に評価するために，地震時の被災時損失費を地震時変形量の関数で定義した後，ライフサイクルコストの算定を実施した．ライフサイクルコストの算定に用いる初期建設費は実際の工事資料から算定した．無補強盛土と補強盛土のライフサイクルコストを算定した結果，耐用期間における補強盛土の優位性を明らかにした．","PeriodicalId":131805,"journal":{"name":"Doboku Gakkai Ronbunshuu C","volume":"23 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":"116693741","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}
引用次数: 0
PROBLEMS ON GEOTECHNICAL INVESTIGATION FOR SEISMIC PERFORMANCE EVALUATION 抗震性能评价中的岩土工程勘察问题
Doboku Gakkai Ronbunshuu C Pub Date : 1900-01-01 DOI: 10.2208/JSCEJC.65.456
K. Ichii, Y. Hata
{"title":"PROBLEMS ON GEOTECHNICAL INVESTIGATION FOR SEISMIC PERFORMANCE EVALUATION","authors":"K. Ichii, Y. Hata","doi":"10.2208/JSCEJC.65.456","DOIUrl":"https://doi.org/10.2208/JSCEJC.65.456","url":null,"abstract":"道路盛土などの耐震性を診断する際，解析に用いる地盤定数を正確に設定することが必要不可欠である．しかしながら実際の設計実務などでは，予算や時間の制約から地盤調査や土質試験が必ずしも十分に実施されている訳ではない．そのため，技術者は限られた条件下で地盤調査の内容を決め，限られた調査結果から地盤定数を設定することになるが，技術者の判断や力量によって設定値は異なってくるものと考えられる．そこで本稿では，委員会活動の一環として，道路盛土の耐震性検討を例にアンケート調査を実施した結果について報告する．","PeriodicalId":131805,"journal":{"name":"Doboku Gakkai Ronbunshuu C","volume":"49S1 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":"116746571","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}
引用次数: 0
INFLUENCE OF GRADING AND WATER CONTENT ON STRENGTH OF CEMENT-MIXED MUDDY SOIL 级配及含水量对水泥土强度的影响
Doboku Gakkai Ronbunshuu C Pub Date : 1900-01-01 DOI: 10.2208/JSCEJC.63.376
S. Fukushima, S. Tani, Akira Kitajima, Kouji Nishimoto
{"title":"INFLUENCE OF GRADING AND WATER CONTENT ON STRENGTH OF CEMENT-MIXED MUDDY SOIL","authors":"S. Fukushima, S. Tani, Akira Kitajima, Kouji Nishimoto","doi":"10.2208/JSCEJC.63.376","DOIUrl":"https://doi.org/10.2208/JSCEJC.63.376","url":null,"abstract":"","PeriodicalId":131805,"journal":{"name":"Doboku Gakkai Ronbunshuu C","volume":"28 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":"125200203","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}
引用次数: 1
INFLUENCE OF FREEZE-THAW ACTION ON MECHANICAL BEHAVIOR OF CRUSHABLE VOLCANIC COARSE-GRAINED SOILS 冻融作用对可破碎火山粗粒土力学特性的影响
Doboku Gakkai Ronbunshuu C Pub Date : 1900-01-01 DOI: 10.2208/JSCEJC.64.712
T. Ishikawa, Yuta Ozaki, S. Miura
{"title":"INFLUENCE OF FREEZE-THAW ACTION ON MECHANICAL BEHAVIOR OF CRUSHABLE VOLCANIC COARSE-GRAINED SOILS","authors":"T. Ishikawa, Yuta Ozaki, S. Miura","doi":"10.2208/JSCEJC.64.712","DOIUrl":"https://doi.org/10.2208/JSCEJC.64.712","url":null,"abstract":"本研究では，低応力下においても顕著な破砕性を示す火山灰質粗粒土の力学特性に及ぼす凍結融解作用の影響を検討するために，実地盤で生じる凍結融解現象を三軸室内で再現可能な試験機を新たに開発し，火山灰質粗粒土の三軸圧縮試験と保水性試験を行った．その結果，非凍上性の火山灰質粗粒土でも破砕性を有する場合には，凍結融解作用により粒子破砕が生じ，融解時に体積収縮する結果，密度が増加するにも関わらずピーク強度は低下し，保水性は高まった．したがって，積雪寒冷地にある火山灰質粗粒土の力学特性の検討には，粒子破砕特性に及ぼす凍結融解作用の影響を評価する必要があることを示した．","PeriodicalId":131805,"journal":{"name":"Doboku Gakkai Ronbunshuu C","volume":"357 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":"122718619","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}
引用次数: 6
MEASUREMENT AND NUMERICAL ANALYSIS FOR INFILTRATION AND EVAPORATION BEHAVIOUR IN UNSATURATED SOIL 非饱和土壤入渗蒸发特性的测量与数值分析
Doboku Gakkai Ronbunshuu C Pub Date : 1900-01-01 DOI: 10.2208/JSCEJC.66.58
S. Widiastuti, Yosuke Matsuzaki, Y. Miyamoto, R. Kitamura
{"title":"MEASUREMENT AND NUMERICAL ANALYSIS FOR INFILTRATION AND EVAPORATION BEHAVIOUR IN UNSATURATED SOIL","authors":"S. Widiastuti, Yosuke Matsuzaki, Y. Miyamoto, R. Kitamura","doi":"10.2208/JSCEJC.66.58","DOIUrl":"https://doi.org/10.2208/JSCEJC.66.58","url":null,"abstract":"It is known that infiltration and evaporation are the essential part of the hydrological cycle. The study of infiltration and evaporation behaviour in unsaturated soil can be conducted using several methods. This paper presents the analysis of a study on infiltration and evaporation behaviour in unsaturated soil from field measurement results.  A numerical simulation for the phase change of the pore water due to the change in temperature and pressure was carried out to obtain the infiltration and evaporation behaviour in unsaturated soil during rainy and no-rainy days. The numerical simulation results were then compared to the field measurement results.","PeriodicalId":131805,"journal":{"name":"Doboku Gakkai Ronbunshuu C","volume":"103 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":"122868124","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}
引用次数: 0
DISCUSSION ON CRUSHABILITY OF EXPANDED GLASS AGGREGATE 膨胀玻璃骨料破碎性的探讨
Doboku Gakkai Ronbunshuu C Pub Date : 1900-01-01 DOI: 10.2208/jscejge.71.418
H. Shigematsu, Masachika Nozawa, Y. Fujiwara
{"title":"DISCUSSION ON CRUSHABILITY OF EXPANDED GLASS AGGREGATE","authors":"H. Shigematsu, Masachika Nozawa, Y. Fujiwara","doi":"10.2208/jscejge.71.418","DOIUrl":"https://doi.org/10.2208/jscejge.71.418","url":null,"abstract":"","PeriodicalId":131805,"journal":{"name":"Doboku Gakkai Ronbunshuu C","volume":"124 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":"122894954","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}
引用次数: 0
DAMAGE MECHANISMS OF MOUNTAIN TUNNELS IN THE 2007 NIIGATA CHUETSU-OKI EARTHQUAKE: INSIGHT FROM SAR INTERFEROMETRY 2007年新泻泻树地震中山地隧道的破坏机制:来自SAR干涉测量的洞察
Doboku Gakkai Ronbunshuu C Pub Date : 1900-01-01 DOI: 10.2208/JSCEJC.65.989
T. Tsuji, Katsuya Yamamoto, Yasuhiro Yamada, T. Matsuoka, T. Asakura
{"title":"DAMAGE MECHANISMS OF MOUNTAIN TUNNELS IN THE 2007 NIIGATA CHUETSU-OKI EARTHQUAKE: INSIGHT FROM SAR INTERFEROMETRY","authors":"T. Tsuji, Katsuya Yamamoto, Yasuhiro Yamada, T. Matsuoka, T. Asakura","doi":"10.2208/JSCEJC.65.989","DOIUrl":"https://doi.org/10.2208/JSCEJC.65.989","url":null,"abstract":"新潟県中越沖地震では，震央に近い柏崎平野部のトンネルでは被害が少なかったにも関わらず，震央から約30km離れた柿崎地域において山岳トンネルの被害が集中した．本研究では干渉SAR解析を行って柿崎地域の地表変動分布を推定し，トンネル被害のメカニズムの解明を試みた．解析結果からトンネル被害の集中した柿崎地域の栃窪背斜において隆起運動が卓越していることが明らかとなった．栃窪背斜が震源断層の南西端に位置すること，破壊の伝播方向に位置していたことが，局所的に震動が増幅した原因に考えられる．また隆起運動によって，褶曲内部の岩相境界において層間滑りが発生した可能性も考えられる．つまり栃窪背斜における震動の増幅や層間滑りが，トンネル被害を引き起こしたと解釈することができた．","PeriodicalId":131805,"journal":{"name":"Doboku Gakkai Ronbunshuu C","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":"127564844","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}
引用次数: 0
CREEP PROPERTIES OF SODIUM SILICATE-GROUTED SAND AND A SIMPLE MEASURING METHOD OF UPPER YIELD VALUE 硅酸钠灌浆砂的蠕变特性及上屈服值的简单测定方法
Doboku Gakkai Ronbunshuu C Pub Date : 1900-01-01 DOI: 10.2208/JSCEJC.65.617
M. Kaga, Ryouzo Yonekura, Shunsuke Simada
{"title":"CREEP PROPERTIES OF SODIUM SILICATE-GROUTED SAND AND A SIMPLE MEASURING METHOD OF UPPER YIELD VALUE","authors":"M. Kaga, Ryouzo Yonekura, Shunsuke Simada","doi":"10.2208/JSCEJC.65.617","DOIUrl":"https://doi.org/10.2208/JSCEJC.65.617","url":null,"abstract":"この論文は水ガラス系溶液型注入材による改良固結砂のクリープ特性と簡易試験法による上限降伏値の予測法に関する研究をまとめたものである．注入材はゲル化領域およびシリカ粒径を重合によって大きくした形状の異なる3種類の注入材を使用した．クリープ特性は注入材のゲル構造によって上限降伏値やクリープ破壊時間に相違があるかどうかを検討した．結果として上限降伏値は，注入材の種類に関係なくほぼ同じであった．これに対し，クリープ破壊時間はゲル構造の違いによる影響がみられた．クリープ破壊時間は，クリープ最小ひずみ速度から推定が可能であった．段階載荷試験法は，上限降伏値を短時間に予測することが可能であった．上限降伏値を予測する簡易試験法として適用できることが示唆された．","PeriodicalId":131805,"journal":{"name":"Doboku Gakkai Ronbunshuu C","volume":"89 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":"133152762","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}
引用次数: 0
ELASTOPLASTIC FINITE ELEMENT ANALYSIS FOR THE DEFORMATION BEHAVIOR OF GROUND DUE TO BRACED EXCAVATION 基坑支护地基变形特性的弹塑性有限元分析
Doboku Gakkai Ronbunshuu C Pub Date : 1900-01-01 DOI: 10.2208/JSCEJC.65.213
T. Konda, H. Shahin, T. Nakai
{"title":"ELASTOPLASTIC FINITE ELEMENT ANALYSIS FOR THE DEFORMATION BEHAVIOR OF GROUND DUE TO BRACED EXCAVATION","authors":"T. Konda, H. Shahin, T. Nakai","doi":"10.2208/JSCEJC.65.213","DOIUrl":"https://doi.org/10.2208/JSCEJC.65.213","url":null,"abstract":"土留め設計は，土留め壁を梁に，周辺地盤や切梁をばねに置換してモデル化したフレーム解析によって設計される場合が多い．しかし，軟弱粘土が厚く堆積した開削現場において，実測された土留め壁変位量が設計値を上回るケースが多く報告されている．ここでは，地盤材料の力学特性を適切に表現できる構成モデルを用い，実現場の施工過程を忠実に再現した弾塑性有限要素解析を実施し，土留め壁や周辺地盤の変形に関する解析結果を実測値やフレーム解析による設計値と比較・検討した．その結果，弾塑性有限要素解析は，土留め壁および背面地盤の変形挙動や切梁軸力の変動など，土留め掘削時の地盤の応力・変形挙動を同一観点から適切に再現できることを示し，実現場への弾塑性有限要素解析の適用が有効であることがわかった．","PeriodicalId":131805,"journal":{"name":"Doboku Gakkai Ronbunshuu C","volume":"4 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":"133966426","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}
引用次数: 1
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