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ハノイ市における繊維質材料混合流動化処理土の埋戻し地盤への適用に関する研究
https://doi.org/10.15118/00005132
https://doi.org/10.15118/000051324a13adb8-9e24-4613-acca-40d3fdf280f8
Item type | 学位論文 / Thesis or Dissertation(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2015-12-22 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Study on Application to Backfilling Ground by Liquefied Stabilized Soil Mixed with Fibered Material in Hanoi City | |||||
タイトル | ||||||
言語 | ja | |||||
タイトル | ハノイ市における繊維質材料混合流動化処理土の埋戻し地盤への適用に関する研究 | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||
資源タイプ | doctoral thesis | |||||
ID登録 | ||||||
ID登録 | 10.15118/00005132 | |||||
ID登録タイプ | JaLC | |||||
アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
著者 |
ズゥオン, クヮン フン
× ズゥオン, クヮン フン |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | In this study, the applicability to back fill ground by Liquefied Stabilized Soil (LSS) mixed with fibered material in Hanoi city of Vietnam has been investigated. Research works including experiment and analysis have been conducted simultaneously aiming to promote the application of LSS in Vietnam in the coming time. (1) Effect of time-dependency on strength and deformation characteristics of LSS mixed with fibered material was evaluated. A series of Consolidated–Undrained triaxial compression tests with measured pore water (CUB tests) under the various conditions at constant strain rates, constant deviator stress, and strain rates changed during monotonic loading have been carried out for LSS mixed with fibered material content of 0 and 20 kg/m3 at curing time of 28 and 56 days, respectively. Based on the test results, it was found that the effect of time-dependency is not seen in stress-strain curve independently of curing time. (2) The difference in triaxial shear property of LSS mixed with fibered material cured in laboratory and at field was investigated to be carried out a series of CUB tests for both specimens of LSS mixed with fibered material amount of 0 and 20 kg/m3 prepared by trimming LSS retrieved from a model ground by block sampling and cured in laboratory at curing time of 28 and 56 days, respectively. Based on the test results, it was found that the maximum deviator stress in q~ε_a relations of LSS mixed with fiber material cured at field tend to be larger than that cured in laboratory, and the brittle property of LSS after the peak in q~ε_a relations has been improved to ductile property by the addition of fiber material even in field. (3) In-situ stiffness of backfilling ground reinforced with fiber was investigated by using of portable Falling Weight Deflectometer at curing time of 28, 56 and 84 days, respectively. The stiffness was estimated by Young’s modulus EP.FWD calculated from KP.FWD-value. In parallel, in order to comparing with the tangent Young’s modulus Etan obtained from q~ε_a relations, a series of CUB tests have been carried out for specimens prepared by trimming LSS retrieved by block sampling from the model ground. It is considered that the KP.FWD-value is able to be estimated the stiffness of backfilling ground by LSS reinforced with fibered material. (4) A procedure for prediction of train-induced vibration from railway tunnels in conformity with criteria of Vietnam has been established as an example for Hanoi metro line No.3. The vibration propagation from the tunnel into the ground surface was analyzed by the 2-D FEM. The numerical results in terms of vibration velocity allow estimating the vibration velocity level, and then it is applicable to the prediction of train-induced vibration. (5) Using the established procedure, it is found that the train-induced vibration decreases when LSS for backfill ground of cut and cover tunnel is used. This will be a new advantage. Then, it is considered that the application to backfilling ground by LSS become one of effective measure for mitigation of the train-induced vibration. | |||||
言語 | ja | |||||
学位授与機関 | ||||||
学位授与機関識別子Scheme | kakenhi | |||||
学位授与機関識別子 | 10103 | |||||
言語 | ja | |||||
学位授与機関名 | 室蘭工業大学 | |||||
言語 | en | |||||
学位授与機関名 | Muroran Institute of Technology | |||||
学位名 | ||||||
言語 | ja | |||||
学位名 | 博士(工学) | |||||
学位の種別 | ||||||
ja | ||||||
課程博士 | ||||||
学位授与番号 | ||||||
学位授与番号 | 甲第376号 | |||||
報告番号 | ||||||
ja | ||||||
甲第376号 | ||||||
学位記番号 | ||||||
ja | ||||||
博甲第376号 | ||||||
学位授与年月日 | ||||||
学位授与年月日 | 2015-09-25 | |||||
日本十進分類法 | ||||||
主題Scheme | NDC | |||||
主題 | 511 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf |