Visualization and sequence photo of tertiary creep under confining pressure
围压下三次蠕变的可视化和序列照片
基本信息
- 批准号:15360473
- 负责人:
- 金额:$ 4.42万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B)
- 财政年份:2003
- 资助国家:日本
- 起止时间:2003 至 2004
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
It is essential for underground development to understand the failure process of rock subjected to tri-axial compression. Therefore, we developed a transparent tri-axial vessel made of an acrylic acid resin, and succeeded in observing the failure process of rock specimens in tri-axial compression test. In this study, tri-axial creep tests of Tage tuff were also conducted within the transparent vessel.A creep test usually requires longer time than a compression test and it is not feasible to take a photograph continuously at every predetermined time interval. Therefore, in this study, the photographing system was developed which cooperated with the existing loading and measuring apparatuses. This system made it possible to take a series of photographs of a specimen in the tertiary creep region. Photographs taken in a tri-axial test were processed to obtain axial and lateral deformations by the computer program developed in this study.After careful examination of axial and lateral deformations, it was found that the creep strain (axial strain) just before failure was nearly equal to the cross sectional width of the stress-strain curve at the creep stress level, and that not only axial but also lateral strain-rates in the tertiary creep region were inversely proportional to the residual time up to the failure. And it was also found that ratio of the lateral and axial strain increases in the tertiary creep region were similar to those of the tri-axial compression test just after the strength failure point.
了解岩石在三轴压缩作用下的破坏过程对地下开发具有重要意义。因此,我们研制了一种丙烯酸树脂制成的透明三轴容器,并成功地观察了岩石试件在三轴压缩试验中的破坏过程。本研究还在透明容器内进行了Tage凝灰岩的三轴蠕变试验。蠕变试验通常需要比压缩试验更长的时间,并且在每个预定的时间间隔连续拍摄照片是不可行的。因此,在本研究中,开发了与现有加载和测量设备相配合的拍摄系统。该系统使在第三系蠕变区拍摄标本的一系列照片成为可能。在三轴试验中拍摄的照片通过本研究中开发的计算机程序进行处理以获得轴向和横向变形。通过对轴向和侧向变形的仔细检查,发现破坏前的蠕变应变(轴向应变)几乎等于蠕变应力水平下应力-应变曲线的横截面宽度,并且三级蠕变区域的轴向应变率和侧向应变率与破坏前的残余时间成反比。三级蠕变区侧向应变与轴向应变的增量比与三轴压缩试验的强度破坏点后的增量比相似。
项目成果
期刊论文数量(19)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
羽柴 公博: "三軸圧縮試験用可視化ベッセルの改良と岩石試験片の体積測定"第33回岩盤力学に関するシンポジウム講演論文集. Vol.33rd. 247-252 (2004)
Kimihiro Hashiba:“岩石试样三轴压缩试验和体积测量可视化容器的改进”第33届岩石力学研讨会论文集第33卷(2004年)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
羽柴 公博: "泥岩の多段階三軸圧縮クリープ試験"資源・素材学会 平成15年度秋季大会講演集. 岩盤工学. 59-60 (2003)
Kimihiro Hashiba:“泥岩的多级三轴压缩蠕变试验”日本岩石工程学会 2003 年秋季会议记录 59-60 (2003)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
改良した可視化ベッセルによる小型試験片の三軸圧縮試験
使用改进的可视化容器对小样本进行三轴压缩测试
- DOI:
- 发表时间:2004
- 期刊:
- 影响因子:0
- 作者:T.Hinotsu;B.Jeyadevan;C.N.Chinnasamy;K.Shinoda;K.Tohji;羽柴 公博
- 通讯作者:羽柴 公博
The improvement of a transparent tri-axial vessel and the measurement of the volume of rock specimens.
透明三轴容器的改进及岩石标本体积的测量。
- DOI:
- 发表时间:2004
- 期刊:
- 影响因子:0
- 作者:HASHIBA;Kimihiro
- 通讯作者:Kimihiro
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{{ truncateString('OKUBO Seisuke', 18)}}的其他基金
Observation of in and out flow from rock specimens and estimation ofthe permeability under the triaxial compression
三轴压缩下岩石样本进出流观测及渗透率估算
- 批准号:
20360404 - 财政年份:2008
- 资助金额:
$ 4.42万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Study on Strength Recovery of Loosen Zone
松动区强度恢复研究
- 批准号:
13450415 - 财政年份:2001
- 资助金额:
$ 4.42万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Failure Criterion and Long-Term Strength of Rock
岩石的破坏准则和长期强度
- 批准号:
11450395 - 财政年份:1999
- 资助金额:
$ 4.42万 - 项目类别:
Grant-in-Aid for Scientific Research (B).
A study on piezoelectric effect of Rock
岩石压电效应的研究
- 批准号:
09450383 - 财政年份:1997
- 资助金额:
$ 4.42万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Improvement on efficiency and reliability of Full-Face Tunneling Boring Machine
全断面掘进机效率和可靠性的提高
- 批准号:
09555319 - 财政年份:1997
- 资助金额:
$ 4.42万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Developmet of Joint Element Considering Time-dependency
考虑时间依赖性的联合元件的开发
- 批准号:
07455408 - 财政年份:1995
- 资助金额:
$ 4.42万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Development of Impact Tensile Testing of Rock to Obtain Complete Stress-Strain Curves
开发岩石冲击拉伸试验以获得完整的应力-应变曲线
- 批准号:
07555327 - 财政年份:1995
- 资助金额:
$ 4.42万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Visco-Elastic Behavior of Fractured Rock
裂隙岩石的粘弹性行为
- 批准号:
03452238 - 财政年份:1991
- 资助金额:
$ 4.42万 - 项目类别:
Grant-in-Aid for General Scientific Research (B)
Study on Automation of Excavation Machineries
挖掘机械自动化研究
- 批准号:
03555133 - 财政年份:1991
- 资助金额:
$ 4.42万 - 项目类别:
Grant-in-Aid for Developmental Scientific Research (B)
Mechanical properties of rocks under dynamic loading
动载下岩石的力学特性
- 批准号:
62460184 - 财政年份:1987
- 资助金额:
$ 4.42万 - 项目类别:
Grant-in-Aid for General Scientific Research (B)