高庙子膨润土高压实成型样品形变研究
详细信息 查看官网全文
- 英文论文题名：The deformation study of high compacted GMZ bentonite
- 论文作者：刘伟 ; 赵帅维 ; 梁栋 ; 李洪辉 ; 刘建琴 ; 贾梅兰 ; 杨卫兵 ; 杨仲田
- 英文论文作者：LIU Wei ; ZHAO Shuai-wei ; LIANG Dong ; LI Hong-hui ; LIU Jian-qin ; JIA Mei-lan ; YANG Wei-bing ; YANG Zhong-tian ; CNNC Key Laboratory on Geological Disposal of High-level Radioactive Waste ; China Institute for Radiation Protection
- 年：2015
- 作者机构：中核高放废物地质处置评价技术重点实验室中国辐射防护研究院;
- 论文关键词：高压实膨润土 ; 吸湿/失水 ; 形变 ; 地质处置
- 英文论文关键词：high compacted bentonite ; water uptake/loss ; deformation ; geological disposal
- 会议召开时间：2015-09-21
- 会议录名称：中国核科学技术进展报告（第四卷）——中国核学会2015年学术年会论文集第5册（核材料分卷、辐射防护分卷）
- 语种：中文
- 分类号：TL942
- 学会代码：EGVD
- 会议名称：中国核学会2015年学术年会
- 会议地点：中国四川绵阳
- 主办单位：中国核学会
- 学会名称：中国核学会
- 页数：6
- 文件大小：392k
- 原文格式：O
- 会议级别：全国
摘要
为了研究压实成型膨润土在吸湿/失水过程中的形变问题,本文以高庙子天然膨润土为研究对象,对不同初始含水率不同初始干密度样品在恒温恒湿箱中进行了养护试验。实验结果表明,对于高初始含水率(23.12%)的样品会失水而收缩,体积缩小了7%~12%;低初始含水率(11.08%)的样品会吸湿而膨胀,体积增加了5%~10%;初始含水率为17.04%样品,体积减小量<4%。在本试验条件下,不同初始含水率不同初始干密度样品均发生了形变。在真实的深地质处置过程中,由于成型样品中水分与环境水分的差异,其保存过程中也会发生形变,为了保证废物体的顺利置放,需要考虑这种形变问题。初始含水率为17%,初始干密度1.7 g/cm~3时,形变相对最小,这两个参数对缓冲材料成型工艺具有重要的参考价值。
In order to study deformation of high compacted bentonite during the water uptake/loss processes,taking the nature GMZ bentonite as studying object,the conserving experiment is done for different original water content and dry density samples.The results show that:the high original water content(23.12%) samples will loss water and shrink,the volume reduce 7%~12%;the low original water content(11.08%) samples will absorb water and swell,the volume increase 5%~10%;And the volume reduces less than 4% for the original wt 17.04% sample.All samples appear deformation under this study experiment.For the real geological disposal,due to the water content difference between samples and environment,it will generate deformation,in order to guarantee the successful disposal of waste,it should consider this deformation.The deformation is relatively minimum for original wt 17% and dry density 1.7 g/cm~3 sample,those tow parameters have significant reference value for the forming process of buffer material.
In order to study deformation of high compacted bentonite during the water uptake/loss processes,taking the nature GMZ bentonite as studying object,the conserving experiment is done for different original water content and dry density samples.The results show that:the high original water content(23.12%) samples will loss water and shrink,the volume reduce 7%~12%;the low original water content(11.08%) samples will absorb water and swell,the volume increase 5%~10%;And the volume reduces less than 4% for the original wt 17.04% sample.All samples appear deformation under this study experiment.For the real geological disposal,due to the water content difference between samples and environment,it will generate deformation,in order to guarantee the successful disposal of waste,it should consider this deformation.The deformation is relatively minimum for original wt 17% and dry density 1.7 g/cm~3 sample,those tow parameters have significant reference value for the forming process of buffer material.
引文
[1]JNC,H12;project to establish the scientific and technical basis for HLW disposal in Japan,supporting report 2repository design and engineering technology[R].Tokaimural:Japan Nuclear Cycle Development Institute,2000.
[2]SKB.SR97 waste,repository design and sites,technical report TR9908,background report to SR-97[R].Stockholm Sweden;Swedish Nuclear Fuel and Waste Management Company,1999.
[3]Li Xiangling,Bernier Frederic,Bel Johan.The Belgian HLW repository design and associated R&D on the THM behaviour of host rock and EBS[.T].Chinese Journal of Rock Mechanics and Engineering,2006,25(4):681-692
[4]Liu Xiaodong,Richard Prikryl,Roland Pusch.THMC-testing of three expandable clays of potential use in HLW repositories[J].Applied Clay Science,2011,52:419-427.
[5]Olivier Cuisinier,Dimitri Deneele,Farimah Masrouri,et al.Impact of high-pH fluid circulation on long term hydromechanical behaviour and microstructure of compacted clay from the laboratory of Meuse-Haute Marne(France)[J].Applied Clay Science 2014,88-89:1-9.
[6]Qiong Wang,Yu-JunCui,Anh Minh Tang,et al.Long-term effect of water chemistry on the swelling pressure of a bentonite-based material[J].Applied Clay Science,2014,87:157-162.
[7]Raul Fernandez,Ana Isabel Ruiz,Jaime Cuevas.The role of smectite composition on the hyperalkaline alteration of bentonite[J].Applied Clay Science,2014,95:83-94.
[8]S.Kaufhold,R.Dohrmann.Stability of bentonites in salt solutions|sodium chloride[J].Applied Clay Science,2009,45:171-177.
[9]G.Lujaniene,S.Motiej njnas,J.Sapolaite.Sorption of Cs,Pu and Am on clay minerals[J].Journal of Radioanalytical and Nuclear Chemistry,2007,274(2):345-353.
[10]Chie Oda,Colin Walker,Daisuke Chino,et al.Na-montmorillonite dissolution rate determined by varying the Gibbs free energy of reaction in a dispersed system and its application to a coagulated system in 0.3 M NaOH solution at 70℃[J].Applied Clay Science,2014,93-94:62-71.
[11]Min-Hoon Baik,Won-Jin Cho,Pil-Soo Hahn.Erosion of bentonite particles at the interface of a compacted bentonite and a fractured granite[J].Engineering Geology,2007,91:229-239.
[12]Chris De Bock,Jean-Michel Bosgiraud,Brendan Breen,et al.Buffer construction technology,Final technical report.Modl-WP6-D6,2009.
[2]SKB.SR97 waste,repository design and sites,technical report TR9908,background report to SR-97[R].Stockholm Sweden;Swedish Nuclear Fuel and Waste Management Company,1999.
[3]Li Xiangling,Bernier Frederic,Bel Johan.The Belgian HLW repository design and associated R&D on the THM behaviour of host rock and EBS[.T].Chinese Journal of Rock Mechanics and Engineering,2006,25(4):681-692
[4]Liu Xiaodong,Richard Prikryl,Roland Pusch.THMC-testing of three expandable clays of potential use in HLW repositories[J].Applied Clay Science,2011,52:419-427.
[5]Olivier Cuisinier,Dimitri Deneele,Farimah Masrouri,et al.Impact of high-pH fluid circulation on long term hydromechanical behaviour and microstructure of compacted clay from the laboratory of Meuse-Haute Marne(France)[J].Applied Clay Science 2014,88-89:1-9.
[6]Qiong Wang,Yu-JunCui,Anh Minh Tang,et al.Long-term effect of water chemistry on the swelling pressure of a bentonite-based material[J].Applied Clay Science,2014,87:157-162.
[7]Raul Fernandez,Ana Isabel Ruiz,Jaime Cuevas.The role of smectite composition on the hyperalkaline alteration of bentonite[J].Applied Clay Science,2014,95:83-94.
[8]S.Kaufhold,R.Dohrmann.Stability of bentonites in salt solutions|sodium chloride[J].Applied Clay Science,2009,45:171-177.
[9]G.Lujaniene,S.Motiej njnas,J.Sapolaite.Sorption of Cs,Pu and Am on clay minerals[J].Journal of Radioanalytical and Nuclear Chemistry,2007,274(2):345-353.
[10]Chie Oda,Colin Walker,Daisuke Chino,et al.Na-montmorillonite dissolution rate determined by varying the Gibbs free energy of reaction in a dispersed system and its application to a coagulated system in 0.3 M NaOH solution at 70℃[J].Applied Clay Science,2014,93-94:62-71.
[11]Min-Hoon Baik,Won-Jin Cho,Pil-Soo Hahn.Erosion of bentonite particles at the interface of a compacted bentonite and a fractured granite[J].Engineering Geology,2007,91:229-239.
[12]Chris De Bock,Jean-Michel Bosgiraud,Brendan Breen,et al.Buffer construction technology,Final technical report.Modl-WP6-D6,2009.