UTILIZATION OF CEMENT-TREATED SOILS BY PLASTIC WASTE

塑料废物对水泥处理土壤的利用

• 批准号: 09555152
• 负责人: OCHIAI Hidetoshi
• 金额: $ 8.32万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09555152/
• 关键词: PLASTIC WASTE; CEMET-TRESATED SOIL; DEFORMATION MODULUS; NONDESTRUCTIVE TESTING; SOFT GROUND; BEARING CAPACITY

A method for utilization of plastic waste in a geotechnical point of view, it is considered that trafficability and stability of soft ground are improved by mixing plastic waste pieces into surface of the ground. The purpose of this study is to evaluate improvement effect of the ground with plastic waste pieces and to make use it in a practice. The main conclusions obtained from this study are as follows,(1) The nondestructive testing apparatus for measuring the deformation modulus of the cement-treated soils with plastic pieces was developed and the influence of confinging pressure on the deformation modulus was clarified.(2) The undrained strength of the cement-treated soils increases as the content of plastic pieces increases.(3) The improvement effect in bending strength was investigated based on the bending test results.(4) From the model loading test results of surface stabilized ground, it is found that the bearing capacity of the improved ground increases in increase with the content of plastic pieces.(5) The improvement effect by plastic pieces can be evaluated by FEM analysis in consideration of brittle failure.(6) It is confirmed that the plastic waste is useful for improving the mechanical properties of the cement-treated soils.

一种塑料垃圾的利用方法从岩土工程的观点来看，认为将塑料垃圾掺入地面可以改善软土地基的通过性和稳定性。本研究的目的是评价废塑料地基的加固效果，并在实践中加以应用。本研究的主要结论如下：(1)研制了塑片水泥土变形模数无损检测装置，明确了搅拌压力对变形模数的影响。(2)水泥土的不排水强度随塑片含量的增加而增加。(3)根据抗弯试验结果，探讨了水泥土抗弯强度的改善效果。(4)从地面加固地基的模型加载试验结果看，水泥土的不排水强度随塑片含量的增加而增加。研究发现，加固后地基的承载能力随塑料片含量的增加而增加。(5)考虑脆性破坏的有限元分析可以评价塑料片的加固效果。(6)证实了塑料废弃物对改善水泥土的力学性能是有益的。

项目成果

K.Omine.H.Ochiai.N.Yoshida: "Estimation of In-Situ Strength of Cement-Treated Soils based on a Two-Phase Mixture Model" Soils & Foundations. Vol.38 No.4. 17-29 (1998)

K.Omine.H.Ochiai.N.Yoshida：“基于两相混合模型的水泥处理土的原位强度估算”

H.Sakka,H.Ochiai,N.Yasufuku,K.Omine,M.Nakashima: "A Nondestructive Testing for Evaluating the Improvement Effect of Cement-Stabilized Soils" Proc.of International Symposium on Lowland Technology. 167-174 (1998)

H.Sakka，H.Ochiai，N.Yasufuku，K.Omine，M.Nakashima：“评估水泥稳定土改良效果的无损检测”低地技术国际研讨会论文集。

築地他: "浚渫粘土を活用したプラスチック片混合処理土の強度特性" 平成9年度土木学会西部支部研究発表会. (印刷中). (1998)

Tsukiji 等人：“使用疏浚粘土与塑料片混合处理的土壤的强度特性”1997 年日本土木工程师学会西部分会研究报告（1998 年）。

K.Omine,H.Ochiai,N.Yasufuku,N.Hayashi: "Evaluation of the Size Effect on the Strength of Cement-treated soils" Proc.of 2nd Int.Sympo.on Geotechnical Engineering of Hard Soils-Soft Rocks. Vol.2. 751-760 (1998)

K.Omine，H.Ochiai，N.Yasufuku，N.Hayashi：“水泥处理土强度的尺寸效应评估”Proc.of 2nd Int.Sympo.on Geotechnical Engineering of Hard Soils-Soft Rocks。

H.Sakka, H.Ochiai, N.Yasufuku, K.Omine, M.Nakashima: "A Nondestructive Testing for Evaluating the Improvement Effect of Cement-Stabilized Soils" Proc.of International Symposium on Lowland Technology. 167-174 (1998)

H.Sakka、H.Ochiai、N.Yasufuku、K.Omine、M.Nakashima：“评估水泥稳定土改良效果的无损检测”低地技术国际研讨会论文集。