CONSOLIDATION CHARACTERISTIC AND STRENGTH ESTIMATION OF MEDIUM HIGH-PRESSURE DEHYDRATION DREDGED SOIL BLOCK
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- UENO Kazutaka
- 九州大学大学院 工学府 建設システム工学専攻
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- SUGIMURA Yoshihisa
- 九州大学大学院 工学研究院 海域港湾環境防災共同研究部門
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- KASAMA Kiyonobu
- 東京工業大学 環境・社会理工学院 土木・環境工学系
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- KASUGAI Yasuo
- 一般財団法人沿岸技術研究センター
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- KATAGIRI Masaaki
- 株式会社日建設計シビル
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- SEGA Yasuhiro
- 国土交通省 九州地方整備局 北九州港湾・空港整備事務所
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- NISHINO Tomoyuki
- 国土交通省 九州地方整備局 北九州港湾・空港整備事務所
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- TAKASHIMA Noriko
- 国土交通省 九州地方整備局 北九州港湾・空港整備事務所
Bibliographic Information
- Other Title
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- 浚渫土砂を用いた中型高圧脱水固化処理ブロックの圧密特性と強度推定
- シュンセツドシャ オ モチイタ チュウガタ コウアツ ダッスイコカ ショリ ブロック ノ アツミツトクセイ ト キョウド スイテイ
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Description
<p> Authors have developed a technique called the cement-mixing and mechanical dehydration method. This technique enables to manufacture high strength soil block bycement-mixing and mechanical dehydration.The purposeof this study is to evaluate the effect of a radial drainage to accelerate consolidation and investigate the consolidation and strength characteristics of soil block. Furthermore, the consolidation behavior and unconfined compressive strength were estimated by the radial drainage theory. The results obtained from this study are summarized below.</p><p> (1) It took about 45 hours to complete the consolidation for soil block without a radial drainage. The consolidation time was shortened to about 370 minutes byusing a radial drainage.The radial drainage mechanism was extremely effective in shortening the consolidation of soil block.</p><p> (2) The water content of the soil block for the cement content of 40 % was reduced by about 40 % by using a radial drainage.The unconfined compressive strength ofthe soil block with cement content of40 % was 10.56 MPa at28 curing days. By using a radial drainage, the water content of the block decreased, and the strength increased.</p><p> (3) The consolidation coefficient obtained fromthe constant strain rate consolidation test, it was the most effective for consolidation prediction using the radial drainage theory. The prediction result considering the well resistance was 130 minutes faster than the actual consolidation behavior. Furthermore, the strength estimation using the radial drainage theory indicated high accuracy with an error of 1.5 MPa (14%) or less.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 77 (2), I_487-I_492, 2021
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390289553401151360
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- NII Article ID
- 130008094205
- 40022653718
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- ISSN
- 21854688
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- HANDLE
- 2324/7217555
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- NDL BIB ID
- 031624635
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL Search
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed