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THE COMPRESSIBILITY OF SOIL MIXED WITH DEFORMABLE PARTICLES 混合了可变形颗粒的土壤的压缩性
Jioshinsetikkusu Rombunshu (geosynthetics Engineering Journal) Pub Date : 1900-01-01 DOI: 10.5030/JCIGSJOURNAL.25.53
T. Kimata, Y. Masaki
{"title":"THE COMPRESSIBILITY OF SOIL MIXED WITH DEFORMABLE PARTICLES","authors":"T. Kimata, Y. Masaki","doi":"10.5030/JCIGSJOURNAL.25.53","DOIUrl":"https://doi.org/10.5030/JCIGSJOURNAL.25.53","url":null,"abstract":"本研究では，ＥＰＳ破砕片混合土の圧縮特性をモデル化するための基礎研究として，破砕片の変形に起因する圧縮成分の定量的な分類・評価を試みた．具体的には，アルミ棒と発泡スチレン棒で模擬した積層体模型を用い，骨格構造の違いも考慮しながら一次元圧縮試験を行った．そして，圧縮過程をデジタル撮影した画像を解析して混合土全体，破砕片自身，間隙部分の体積変化をそれぞれ個別に算出し，幾何学的な観点から各成分を分析した．その結果，ＥＰＳ破砕片の混合によって付加される圧縮成分としては，１）破砕片自身の体積圧縮，２）それに起因する骨格変化による間隙部分の減少，３）変形した粒子の移動に起因する間隙変化，に分類されることがわかった．","PeriodicalId":165094,"journal":{"name":"Jioshinsetikkusu Rombunshu (geosynthetics Engineering Journal)","volume":"19 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":"134112898","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
A REINFORCED SOIL STRUCTURE WITH PILE FOUNDATION 桩基础加筋土结构
Jioshinsetikkusu Rombunshu (geosynthetics Engineering Journal) Pub Date : 1900-01-01 DOI: 10.5030/JCIGSJOURNAL.23.209
T. Hara, S. Tsuji
{"title":"A REINFORCED SOIL STRUCTURE WITH PILE FOUNDATION","authors":"T. Hara, S. Tsuji","doi":"10.5030/JCIGSJOURNAL.23.209","DOIUrl":"https://doi.org/10.5030/JCIGSJOURNAL.23.209","url":null,"abstract":"本論文では，補強土を道路拡幅における腹付け盛土へ適用する特殊な事例として，施工中に確認された設計地盤条件との違いに適合すべく，地すべり抑止杭を支持杭とした細幅補強土の適用について紹介する．これは，当初拡幅盛土として，既設盛土を一部切土し，かつ基礎地盤を改良した一般補強土を計画していたところ，掘削途中で盛土及び基礎地盤が設計で考えていた土質と異なり，巨礫が混入する粘性土系地盤であったため，現時点以上の掘削が困難なこと，狭小地地盤改良が困難で地すべり抑止杭が必要であると考えられたことなどによる．本工法の適用にあたっては，細幅補強土の安定検討に加え，杭と補強土との結合部の解析的検討などを実施し，他工法との再比較から採用の合理性を確認して計画した．","PeriodicalId":165094,"journal":{"name":"Jioshinsetikkusu Rombunshu (geosynthetics Engineering Journal)","volume":"18 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":"132790803","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: 2
INVESTIGATION OF SOME FACTORS ON CROSS-PLANE FLOW PERFORMANCE OF VARIOUS GEOTEXTILES 影响各种土工布平面流动性能的因素研究
Jioshinsetikkusu Rombunshu (geosynthetics Engineering Journal) Pub Date : 1900-01-01 DOI: 10.5030/JCIGSJOURNAL.24.43
Y. Kohata, T. Jin, Jun-ichi Hironaka, T. Hirai
{"title":"INVESTIGATION OF SOME FACTORS ON CROSS-PLANE FLOW PERFORMANCE OF VARIOUS GEOTEXTILES","authors":"Y. Kohata, T. Jin, Jun-ichi Hironaka, T. Hirai","doi":"10.5030/JCIGSJOURNAL.24.43","DOIUrl":"https://doi.org/10.5030/JCIGSJOURNAL.24.43","url":null,"abstract":"不織布（ジオテキスタイル）をフィルター材として土中に敷設した場合，土粒子の侵入・捕捉に伴った目詰まりによる透水性能の低下が予想される．本研究では，不織布の垂直方向透水性能に及ぼす諸要因を検討することを目的として，製造方法や厚さが異なる種々のジオテキスタイルを試料土層（千葉ローム）と礫層の間に挟んだ供試体に，動水勾配i= 1 及び 4 として，定水位透水試験を実施し，種々の不織布の垂直方向透水性能について検討した．実験結果に基づいて，経過時間に対する透水量から算出した透水係数，単位体積目詰まり量，および垂直方向透水性能に及ぼす動水勾配や温度(水温)の影響に着目して考察を加えた．最終的に，本研究において対象とした千葉ロームに対して，目詰まりが生じにくい不織布を評価した．","PeriodicalId":165094,"journal":{"name":"Jioshinsetikkusu Rombunshu (geosynthetics Engineering Journal)","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":"115320532","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
分割型壁面のジオテキスタイル補強土壁に関する動的遠心模型実験（その３ 補強土壁の崩壊メカニズム） 关于分割型墙面的地质加固土墙的动态离心模型实验(三、加固土墙的崩塌机制)
Jioshinsetikkusu Rombunshu (geosynthetics Engineering Journal) Pub Date : 1900-01-01 DOI: 10.5030/JCIGSJOURNAL.25.169
哲也 佐々木, 進 中島, 忠夫 榎本
{"title":"分割型壁面のジオテキスタイル補強土壁に関する動的遠心模型実験（その３ 補強土壁の崩壊メカニズム）","authors":"哲也 佐々木, 進 中島, 忠夫 榎本","doi":"10.5030/JCIGSJOURNAL.25.169","DOIUrl":"https://doi.org/10.5030/JCIGSJOURNAL.25.169","url":null,"abstract":"","PeriodicalId":165094,"journal":{"name":"Jioshinsetikkusu Rombunshu (geosynthetics Engineering Journal)","volume":"80 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":"116350680","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
SURFACE MODEL OF STONE WALL AND ADHESION EFFECT OF VINE 石墙的表面模型及藤蔓的附着效果
Jioshinsetikkusu Rombunshu (geosynthetics Engineering Journal) Pub Date : 1900-01-01 DOI: 10.5030/JCIGSJOURNAL.23.177
M. Fukuda, Zyoji Nishiura, T. Yamasaki
{"title":"SURFACE MODEL OF STONE WALL AND ADHESION EFFECT OF VINE","authors":"M. Fukuda, Zyoji Nishiura, T. Yamasaki","doi":"10.5030/JCIGSJOURNAL.23.177","DOIUrl":"https://doi.org/10.5030/JCIGSJOURNAL.23.177","url":null,"abstract":"This paper presents a simple model that is aimed to be utilized as a measurement for predicting a surface stability of stone wall and also to evaluate an adhesion effect of vine developing along the surface of stone wall. The stability model of stone blocks pile is constructed based on Coulomb friction that acts between contacted blocks. Also, in this paper, pulling out test applied for trunk of vein is contained. It is expected that this amount of strength is affected by adhesion of trunks as well as the morphological properties of vine. This study leads to the new model for measuring the stability of geo-synthetic blocks pile. Parametric study based on the presented model indicates that the slope of surface of blocks pile have more effect on the stability comparing with the slant of wall surface itself. Furthermore, although the equivalent cohesion derived from the adhesion of vine remarkably affects the stability of sliding, it is concluded that it doesn’t affect the stability of rotation.","PeriodicalId":165094,"journal":{"name":"Jioshinsetikkusu Rombunshu (geosynthetics Engineering Journal)","volume":"120 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":"127178814","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
Application of reinforced soil wall with double wall system to back-to-back walls 双层加筋土墙在背靠背墙中的应用
Jioshinsetikkusu Rombunshu (geosynthetics Engineering Journal) Pub Date : 1900-01-01 DOI: 10.5030/JCIGSJOURNAL.23.183
Koichi Yoshida, Koji Tazawa, Syuji Ito
{"title":"Application of reinforced soil wall with double wall system to back-to-back walls","authors":"Koichi Yoshida, Koji Tazawa, Syuji Ito","doi":"10.5030/JCIGSJOURNAL.23.183","DOIUrl":"https://doi.org/10.5030/JCIGSJOURNAL.23.183","url":null,"abstract":"高速道路JCT工事おいて，二重壁構造を有するジオテキスタイル補強土壁が採用された．本補強土壁の施工箇所は高速道路のOFFランプの路体部にあたり，最大壁高10.2m,幅6.5mの幅員の狭い両面盛土形状であった．そこで，補強盛土体の一体性と施工性の向上を目的に，各段のジオテキスタイルを全層敷設とし両面の内壁まで敷設した．本工事では，補強土壁の安定性を評価するために，盛土施工中および供用後において「光ファイバーセンサー機能付ジオテキスタイル」1)を盛土に敷設し，ジオテキスタイルに生じるひずみの計測を行うこととした．本論文では，動態観測結果の報告とその評価を行う．","PeriodicalId":165094,"journal":{"name":"Jioshinsetikkusu Rombunshu (geosynthetics Engineering Journal)","volume":"85 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":"127431951","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
EFFECTS OF INSTALLATION-DAMAGE LEVEL ON TENSILE STRENGTH PROPERTIES OF HDPE GEOGRID 安装损伤等级对hdpe土工格栅抗拉强度性能的影响
Jioshinsetikkusu Rombunshu (geosynthetics Engineering Journal) Pub Date : 1900-01-01 DOI: 10.5030/JCIGSJOURNAL.25.47
Takeshi Matsuno, Y. Miyata, D. Hirakawa
{"title":"EFFECTS OF INSTALLATION-DAMAGE LEVEL ON TENSILE STRENGTH PROPERTIES OF HDPE GEOGRID","authors":"Takeshi Matsuno, Y. Miyata, D. Hirakawa","doi":"10.5030/JCIGSJOURNAL.25.47","DOIUrl":"https://doi.org/10.5030/JCIGSJOURNAL.25.47","url":null,"abstract":"粒状土中にHDPEジオグリッドを配置し締固め荷重を与えることで準備した損傷供試体の引張り強度特性を調べた．損傷レベルをレーザ変位計で測定した供試体の表面粗度をもとに評価した．引張り試験における供試体のひずみ解析には画像解析技術を用いた．損傷レベルがHDPEジオグリッドの引張強度特性の及ぼす影響を統計的に考察した．本研究の成果はジオグリッドの設計引張強さの評価法の合理化に貢献する．","PeriodicalId":165094,"journal":{"name":"Jioshinsetikkusu Rombunshu (geosynthetics Engineering Journal)","volume":"446 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":"125768982","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
HEAVY METALS RETENTION IN GEOSYNTHETIC CLAY LINERS AND ITS POTENTIAL ROLE IN ACID ROCK DRAINAGE TREATMENT 土工合成粘土衬里的重金属截留及其在酸性岩石排水处理中的潜在作用
Jioshinsetikkusu Rombunshu (geosynthetics Engineering Journal) Pub Date : 1900-01-01 DOI: 10.5030/JCIGSJOURNAL.25.233
Angelica Naka, Zhenze Li, T. Inui, T. Katsumi, Hiroki Mogami
{"title":"HEAVY METALS RETENTION IN GEOSYNTHETIC CLAY LINERS AND ITS POTENTIAL ROLE IN ACID ROCK DRAINAGE TREATMENT","authors":"Angelica Naka, Zhenze Li, T. Inui, T. Katsumi, Hiroki Mogami","doi":"10.5030/JCIGSJOURNAL.25.233","DOIUrl":"https://doi.org/10.5030/JCIGSJOURNAL.25.233","url":null,"abstract":"The capacity of geosynthetic clay liners (GCLs) to attenuate metals and metalloids such as Al, Fe, Cu, Zn, As, and Pb was evaluated in this study. For this purpose, free swell, sorption, and hydraulic conductivity tests on a needle-punched geosynthetic clay liner against a pH 3 artificial acid rock drainage (ARD) were conducted. Free swelling tests showed that at high metal concentration, the swell index decreased dramatically. Sorption test results showed that Na-bentonite had high capacity to sorb metals and metalloids. Hydraulic conductivity tests showed that k was 10 times lower when GCL was prehydrated with water, before permeating with ARD. Effluents were also evaluated in each case and results showed that the GCL tested has strong attenuation capacity toward metals and metalloids present in ARD, although desorption was observed in some cases.","PeriodicalId":165094,"journal":{"name":"Jioshinsetikkusu Rombunshu (geosynthetics Engineering Journal)","volume":"162 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":"130688296","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: 4
Effects of Boundary Condition of Geotextile on Bearing Mechanism of Very Soft Ground Covered with Geotextile 土工布边界条件对极软地基覆土工布承载机理的影响
Jioshinsetikkusu Rombunshu (geosynthetics Engineering Journal) Pub Date : 1900-01-01 DOI: 10.5030/JCIGSJOURNAL.25.1
D. Ahn, K. Oda, K. Tokida, S. You
{"title":"Effects of Boundary Condition of Geotextile on Bearing Mechanism of Very Soft Ground Covered with Geotextile","authors":"D. Ahn, K. Oda, K. Tokida, S. You","doi":"10.5030/JCIGSJOURNAL.25.1","DOIUrl":"https://doi.org/10.5030/JCIGSJOURNAL.25.1","url":null,"abstract":"一般的に超軟弱粘土地盤においては，施工重機のトラフィカビリティを確保するための表層処理工法としてジオテキスタイルが敷設されることが多い．ジオテキスタイルが覆われた超軟弱地盤の挙動に関する様々な研究がされているが，これらの研究はジオテキスタイルが完全拘束された条件におけるものが多い．本研究では，超軟弱地盤の支持力に及ぼすジオテキスタイルの拘束条件の影響を評価するために，数値解析を行った．数値解析では，ジオテキスタイルと地盤の摩擦を考慮するために，ジョイント要素を導入した．解析結果は，ジオテキスタイルの端部拘束を変化させた模型実験の結果と比較した．その結果，超軟弱地盤の支持メカニズムに及ぼすジオテキスタイルの拘束条件の影響が明らかになった．","PeriodicalId":165094,"journal":{"name":"Jioshinsetikkusu Rombunshu (geosynthetics Engineering Journal)","volume":"50 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":"126820956","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
D・BOX 工法による超軟弱地盤対策および環境振動対策 基于D·BOX工艺的超软弱地基对策及环境振动对策
Jioshinsetikkusu Rombunshu (geosynthetics Engineering Journal) Pub Date : 1900-01-01 DOI: 10.5030/JCIGSJOURNAL.24.143
元 松岡, 太 野本
{"title":"D・BOX 工法による超軟弱地盤対策および環境振動対策","authors":"元 松岡, 太 野本","doi":"10.5030/JCIGSJOURNAL.24.143","DOIUrl":"https://doi.org/10.5030/JCIGSJOURNAL.24.143","url":null,"abstract":"D・BOX 工法とは、「土のう」を現代の地盤対策施工技術として活用出来るように開発された工法であり、もはや「土のう」と呼べないほど進化しているためD・BOX（Divided Box）と名付けた。ここでは、本工法を使って超軟弱地盤（沼地）上に国道の建設を行なった事例と、その道路脇の沼地でD・BOX 上の載荷試験を行なった結果を報告する。砕石入りのD・BOX が透水層としても働き、最も強度を必要とする直下の周辺軟弱地盤を局所的に圧密・強化して、支持力を短期間に増大させる。さらに、D・BOX が振動エネルギーを袋に包まれた土粒子間の摩擦熱エネルギーとして消散させる高減衰の防振（免震）装置としての機能を果し交通振動や地震動を低減させる効果について、振動実験結果と道路施工の計測事例を示す。","PeriodicalId":165094,"journal":{"name":"Jioshinsetikkusu Rombunshu (geosynthetics Engineering Journal)","volume":"57 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":"127654582","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
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