Determination of Extent of Excavated Damage Zone Around Mined Tunnels using Pre and Post Construction Pore-Water Pressure Response
利用施工前后孔隙水压力响应确定采矿隧道周围开挖损坏区域的范围
基本信息
- 批准号:RGPIN-2017-05277
- 负责人:
- 金额:$ 1.46万
- 依托单位:
- 依托单位国家:加拿大
- 项目类别:Discovery Grants Program - Individual
- 财政年份:2017
- 资助国家:加拿大
- 起止时间:2017-01-01 至 2018-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The containment of nuclear waste in deep geological repositories (DGR) is the preferred method for long-term disposal of spent nuclear fuel globally. The benefit of a DGR is the presence of both engineered and geological barriers that isolate the repository from the surrounding geological environment. The challenge; however, is that like any underground excavation, the surrounding host rock will be damaged during adit excavation known as the excavated damage zone (EDZ). Damage initiation and fracture propagation occurs with the crack intensity decreasing with distance from the tunnel wall, which has a direct influence on the in situ permeability of the host rock. Currently, assessment of the immediate and temporal changes within the EDZ is carried out through numerical simulation and in full-scale underground laboratories where field tests can be conducted. These underground laboratories rely on physical sampling of the host rock following excavation of test adits as well as non-destructive geophysical methods. Both of these methods have some limitations in their overall efficacy. None of these methods can fully characterize the temporal geomechanical properties of the EDZ on a real-time basis throughout the life of the test facility.
将核废物封闭在深层地质处置库(DGR)中是全球长期处置乏核燃料的首选方法。DGR的好处是存在工程和地质屏障,将处置库与周围地质环境隔离开来。挑战;然而,与任何地下工程开挖一样,在平硐开挖过程中围岩也会受到破坏,即开挖损伤区。损伤起裂和断裂扩展是随着裂纹强度的减小而发生的,它直接影响到围岩的原位渗透性。目前,通过数值模拟和可进行现场测试的全尺寸地下实验室对EDZ内的即时和时间变化进行评估。这些地下实验室依赖于测试平硐开挖后对围岩的物理取样以及非破坏性地球物理方法。这两种方法在其总体功效方面都有一定的局限性。这些方法中没有一种能够在测试设施的整个寿命期间实时地完全表征EDZ的时间地质力学特性。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Elwood, David其他文献
A Novel Approach to Managing a Strangulated De Garengeot's Hernia
- DOI:
10.1177/0003134820943552 - 发表时间:
2021-01-01 - 期刊:
- 影响因子:1
- 作者:
Simpson, Francis J.;Fay, Katherine;Elwood, David - 通讯作者:
Elwood, David
Hepatobiliary surgery: Lessons learned from live donor hepatectomy
- DOI:
10.1016/j.suc.2006.06.012 - 发表时间:
2006-10-01 - 期刊:
- 影响因子:3.1
- 作者:
Elwood, David;Pomposelli, James J. - 通讯作者:
Pomposelli, James J.
Frailty assessment in the acute care surgery population - the agreement and predictive value on length of stay and re-admission of 3 different instruments in a prospective cohort
- DOI:
10.1016/j.amjsurg.2020.03.026 - 发表时间:
2020-10-01 - 期刊:
- 影响因子:3
- 作者:
Mahmooth, Zayan;Carpenter, Elizabeth;Elwood, David - 通讯作者:
Elwood, David
Elwood, David的其他文献
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{{ truncateString('Elwood, David', 18)}}的其他基金
Determination of Extent of Excavated Damage Zone Around Mined Tunnels using Pre and Post Construction Pore-Water Pressure Response
利用施工前后孔隙水压力响应确定采矿隧道周围开挖损坏区域的范围
- 批准号:
RGPIN-2017-05277 - 财政年份:2022
- 资助金额:
$ 1.46万 - 项目类别:
Discovery Grants Program - Individual
In situ characterisation of weak cretaceous clay shales and rich feed oil sands using a self-bore pressuremeter
使用自孔压力计对软质白垩系粘土页岩和富集油砂进行原位表征
- 批准号:
556988-2020 - 财政年份:2021
- 资助金额:
$ 1.46万 - 项目类别:
Alliance Grants
Determination of Extent of Excavated Damage Zone Around Mined Tunnels using Pre and Post Construction Pore-Water Pressure Response
利用施工前后孔隙水压力响应确定采矿隧道周围开挖损坏区域的范围
- 批准号:
RGPIN-2017-05277 - 财政年份:2021
- 资助金额:
$ 1.46万 - 项目类别:
Discovery Grants Program - Individual
In situ characterisation of weak cretaceous clay shales and rich feed oil sands using a self-bore pressuremeter
使用自孔压力计对软质白垩系粘土页岩和富集油砂进行原位表征
- 批准号:
556988-2020 - 财政年份:2020
- 资助金额:
$ 1.46万 - 项目类别:
Alliance Grants
Climatological influences of deep seated translational landslides in residual clay shale bedrock
残留粘土页岩基岩中深层平移滑坡的气候影响
- 批准号:
523207-2018 - 财政年份:2020
- 资助金额:
$ 1.46万 - 项目类别:
Collaborative Research and Development Grants
Determination of Extent of Excavated Damage Zone Around Mined Tunnels using Pre and Post Construction Pore-Water Pressure Response
利用施工前后孔隙水压力响应确定采矿隧道周围开挖损坏区域的范围
- 批准号:
RGPIN-2017-05277 - 财政年份:2020
- 资助金额:
$ 1.46万 - 项目类别:
Discovery Grants Program - Individual
Determination of Extent of Excavated Damage Zone Around Mined Tunnels using Pre and Post Construction Pore-Water Pressure Response
利用施工前后孔隙水压力响应确定采矿隧道周围开挖损坏区域的范围
- 批准号:
RGPIN-2017-05277 - 财政年份:2019
- 资助金额:
$ 1.46万 - 项目类别:
Discovery Grants Program - Individual
Climatological influences of deep seated translational landslides in residual clay shale bedrock
残留粘土页岩基岩中深层平移滑坡的气候影响
- 批准号:
523207-2018 - 财政年份:2019
- 资助金额:
$ 1.46万 - 项目类别:
Collaborative Research and Development Grants
Determination of Extent of Excavated Damage Zone Around Mined Tunnels using Pre and Post Construction Pore-Water Pressure Response
利用施工前后孔隙水压力响应确定采矿隧道周围开挖损坏区域的范围
- 批准号:
RGPIN-2017-05277 - 财政年份:2018
- 资助金额:
$ 1.46万 - 项目类别:
Discovery Grants Program - Individual
Climatological influences of deep seated translational landslides in residual clay shale bedrock
残留粘土页岩基岩中深层平移滑坡的气候影响
- 批准号:
523207-2018 - 财政年份:2018
- 资助金额:
$ 1.46万 - 项目类别:
Collaborative Research and Development Grants
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