Compression and Consolidation on Compressed Dehydarated Sludge

压缩脱水污泥的压缩固结

• 批准号: 08456119
• 负责人: FUJII Hiroaki
• 金额: $ 5.12万
• 依托单位: OKAYAMA University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08456119/
• 关键词: Dehydrated sludge; compression; consolidation; sludge; model test; centrifuge test; 浚藻ヘドロ; ヘドロ; 脱水ケーキ; 遠心載荷; 模型実験; 逆解析; 体積圧縮係数; 透水係数; ヘドロ処理土; 遠心力載荷試験; 数値解析; 模型土壌実験

Compressive properties on compressed sledged sludge called 'Dehydrated Cake was intended to clarify.Dehydrated Cake which made in Kojima Artificial Lake in Okayama prefecture is used as embankment materials by Ministry Agriculture, Forest and Fishery. Since the geotechnical property of Dehydrated Cake are not known, the model test such as centrifuge test, model soil bin test and large scale ouedmeter test. Miniature dehydrated cake were made by sieving and by compressed several pressure by large scale onedmeter . The following conclusions are made : (1) Settlement of Compressed sample is the larger with its diameter larger. (2)The larger water content of sample is the settlement the less.(3)Settlement of dehydrated cake become a certain value within 20 days in any test.(4)Settlement of dehydrated cake in water were lager than one in air. (5)The deference of water content of dehydrated cake were not significant in water contrary to in air.(6)The settlement of the sample compressed the high pressure were smaller than one with low pressure. (7) Size of dehydrated cake is the lager the settlement and the compressive coefficient were lager. (8)Numerical analysis show fairy to predict the future behavior using the data experimented.

压缩特性的压缩雪橇污泥称为“脱水饼”的目的是澄清。脱水饼是在小岛人工湖在冈山县被用作堤坝材料的农业，森林和渔业部。由于脱水饼的土工性质尚不清楚，因此，模型试验主要有离心试验、模型土槽试验和大型土工试验。通过筛分和大型单螺杆压缩机的多次加压，制成微型脱水饼。得出以下结论：（1）试件直径越大，压缩后的沉降量越大。（2）试样含水量越大，沉降量越小。（3）在任何试验中，脱水饼的沉降在20天内成为一定值。（4）脱水饼在水中的沉降量大于在空气中的沉降量。（5）脱水饼的含水量在水中与空气中差异不显著。（6）高压压缩试样的沉降量小于低压压缩试样。(7)脱水饼粒径越大，沉降量越大，压缩系数越大.（8）数值分析表明，利用实验数据可以很好地预测未来行为。

项目成果

藤井弘章: "児島湾浚渫ヘドロ脱水ケーキの力学的性質(3)" (1998)

藤井弘明：《儿岛湾疏浚污泥脱水饼的机械特性（3）》（1998）

Fujii,H,Shimada.S,Nishimura,S and Ofori,E.: "Identification of properties of fill dams during construction and resevoir filling by back analysis." 農業土木学会中国四国支部講演会要旨集. 175-177 (1996)

富士）

藤井弘章: "児島湾浚渫ヘドロ脱水ケーキの力学的性質(2)" (1997)

藤井弘明：《儿岛湾疏浚污泥脱水饼的机械特性（2）》（1997）

藤井弘章: "児島湾浚渫ヘドロ脱水ケーキの工学的性質(2)" 平成10年度農業土木学会大会講演会講演要旨集. 562-563 (1998)

藤井弘明：《儿岛湾疏浚污泥脱水饼的工程特性（2）》1998年日本农业土木工程学会会议摘要562-563（1998）。

藤井弘章・島田清・西村伸一・橋本和典: "カードボードドレーン改良地盤のの圧密解析" 農業土木学会中国四国支部講演会要旨集. 173-174 (1996)

Hiroaki Fujii、Kiyoshi Shimada、Shinichi Nishimura、Kazunori Hashimoto：“纸板排水沟改良地面的固结分析”日本农业和土木工程师学会中国-四国分会讲座摘要集 173-174（1996）。