A STUDY ON APPLICATION OF INDUSTRIAL SUB-PRODUCTS TO THE LIGHT WEGHT GEOTECHNICAL METERIAL

工业副产品在轻质土工材料中的应用研究

• 批准号: 04555118
• 负责人: YASUHARA Kazuya
• 金额: $ 2.62万
• 依托单位: DEPARTMENT OF URBAN AND CIVIL ENG., SCHOOL OF ENG., IBARAKI UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04555118/
• 关键词: Light-weighted material; Coal fly ash; Enviroumental geotechnology; Industrial sub-product; Utilization; Embankment; Foundation; Back-fill; 軽量地盤材料; 変形係数; 浸透; 破壊; 止水性; 熱赤外線リモートセンシング; 水浸; 強度低下; 一軸圧縮強度; モール・クーロン破壊基準

An attempt was made at laboratory and field on application of such industrical sub-products as coal fly ash to geotechnical engineering purposes by mixing with bubble creating material and cement.The works both at laboratory and field indicate the following :1)Undrained strength of the light-weight meterial using the coal fly ash is developed immediately after mixing and increases linealy with time very rapidly.2)The Mohr-coulomb's failure criteria is applicable to explanation of behavior of the light-weighted meterial made from coal fly ash.3)The consolidation yield stress of this material is very large and has a closed conection with unconfised strength. However, once the applied vertical stress exceeds the yield stress, the compressibility dramatecally increases, probable due to the collapse of structures including the voids in the meterial.4)Small amplitude of cyclic loading increases the Young's modulus of the light-weighted material while large amplitude of cyclic loading decreases it. The critical value of cyclic loading between these opposite tendencies, therefore, should be found out.5)It was proved from the field test that the light-weight material can be utilized for fomdation of the bridge. It is also suggested in the present study that this material will be able to be used for construction of the floating island.6)It is only a shortcoming that strength and stiffness of this material is weaken due to induration during rainfall. This must be improved by further investigation.

对粉煤灰等工业副产品与造泡材料、水泥混合应用于岩土工程进行了实验室和现场的尝试，实验室和现场工作表明：1）粉煤灰轻质材料的不排水强度在掺加后立即开始发展，并随时间线性增长很快; 2）摩尔-库仑破坏准则适用于粉煤灰轻质材料的破坏行为;该材料的固结屈服应力很大，与未确定强度密切相关。然而，一旦施加的垂直应力超过屈服应力，压缩性急剧增加，可能是由于结构的崩溃，包括在米的空隙。4）小幅度的循环加载增加的杨氏模量的轻质材料，而大幅度的循环加载降低它。5）现场试验证明，轻质材料可以用于桥梁的基础。该材料可用于浮岛的建造。6）该材料的缺点是在降雨过程中由于硬化而使强度和刚度减弱。这一点必须通过进一步调查加以改进。

项目成果

Horiuchi,S.Tamaoki,K.and K.Yasuhara: "Coal ash slurry for effective Underwater disposal" Sols and Foundations(土質工学会論文集). 35-1(未定). (1995)

Horiuchi, S. Tamaoki, K. 和 K. Yasuhara：“用于有效地下水处理的煤灰浆”Sols and Foundations（日本土壤工程学会论文集）35-1（待定）。

安原一哉・堀内澄夫: "石炭灰の地盤材料としての有効利用と環境への影響" 第2回地球環境シンポジウム論文集(土木学会). VI-5- (1994)

Kazuya Yasuhara 和 Sumio Horiuchi：“煤灰作为地面材料的有效利用及其对环境的影响”第二届全球环境研讨会论文集（日本土木工程师学会）VI-5-（1994 年）。

Horiuchi, S. , K. Tamaoki and K. Yasuhara: "Coal ash slurry for effective underwater disposar" Soils and Founlations (土質工学会論文集)22GD06:35-1. (1995)

Horiuchi, S.、K. Tamaoki 和 K. Yasuhara：“用于有效水下处置器的煤灰浆”土壤和地基（日本土壤工程学会会议记录）22GD06：35-1（1995 年）。

Horiuchi, S.et al.: "Effect of surfactant addition on properties of coal ash reclaimed" Proc.1st Conf.Environmental Geotechnology. (in Japanese). 177-182 (1994)

Horiuchi, S.et al.：“添加表面活性剂对回收粉煤灰性能的影响”Proc.1st Conf.Environmental Geotechnology。

Horiuchi, S., K.Tamaoki and K.Yasuhara: "Coal ash slurry for effective underwater disposal, Soils and Foundations" JSSMFE. (to be appeared in Vol.35, No.1 of 1995).

Horiuchi, S.、K.Tamaoki 和 K.Yasuhara：“用于有效水下处置的煤灰浆、土壤和地基”JSSMFE。