Laboratory and numerical study of post-peak constitutive behaviour of hard rock
硬岩峰后本构行为室内及数值研究
基本信息
- 批准号:41646-2006
- 负责人:
- 金额:$ 1.82万
- 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:2007
- 资助国家:加拿大
- 起止时间:2007-01-01 至 2008-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Excvations in rock result in local redistribution of loads [stresses]. In deep excavations or in weak rockmasses this can result in local failure in the rock walls and roof of the excavation. Ground support is used to control this process. Ground behaviour in the failing and failed state dictates how well the support elements function. While the current state of knowledge on the initiation of failure and peak strength is probably adequate for the solution of most rock engineering problems the same cannot be said for post-failure rock characteristics. The proposed research will use a new state-of-the-art rock testing system to load and image samples into the post failue zone. Finite element computer modelling will be done to evaluate appropriate post-failure parameters. This work will be directly applicable to borehole stability studies and is expected to provide guidance toward this same problem at larger field scales [e.g. tunnels, mines, etc].
岩石中的激发导致荷载[应力]的局部重新分布.在深开挖或软弱岩体中,这可能导致开挖的岩壁和顶板局部破坏。地面支持用于控制这一过程。在破坏和失效状态下的地面行为决定了支撑元件的功能如何。虽然目前关于断裂起始和峰值强度的知识状态可能足以解决大多数岩石工程问题,但对于断裂后的岩石特性却不能这么说。拟议的研究将使用一个新的国家的最先进的岩石测试系统加载和图像样本到后故障区。将进行有限元计算机建模,以评价适当的失效后参数。这项工作将直接适用于井眼稳定性研究,并有望为更大规模的现场(如隧道、矿井等)解决同样的问题提供指导。
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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{{ truncateString('Bawden, William', 18)}}的其他基金
Laboratory and numerical study of post-peak constitutive behaviour of hard rock
硬岩峰后本构行为室内及数值研究
- 批准号:
41646-2006 - 财政年份:2010
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
Laboratory and numerical study of post-peak constitutive behaviour of hard rock
硬岩峰后本构行为室内及数值研究
- 批准号:
41646-2006 - 财政年份:2009
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
Laboratory and numerical study of post-peak constitutive behaviour of hard rock
硬岩峰后本构行为室内及数值研究
- 批准号:
41646-2006 - 财政年份:2008
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
Laboratory and numerical study of post-peak constitutive behaviour of hard rock
硬岩峰后本构行为室内及数值研究
- 批准号:
41646-2006 - 财政年份:2006
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
Evaluation of continuum numerical tools for cable bolt design and long term evaluation of paste backfill behaviour
电缆锚杆设计连续数值工具的评估和膏体回填行为的长期评估
- 批准号:
41646-2001 - 财政年份:2005
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
Evaluation of continuum numerical tools for cable bolt design and long term evaluation of paste backfill behaviour
电缆锚杆设计连续数值工具的评估和膏体回填行为的长期评估
- 批准号:
41646-2001 - 财政年份:2003
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
Evaluation of continuum numerical tools for cable bolt design and long term evaluation of paste backfill behaviour
电缆锚杆设计连续数值工具的评估和膏体回填行为的长期评估
- 批准号:
41646-2001 - 财政年份:2002
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
Evaluation of continuum numerical tools for cable bolt design and long term evaluation of paste backfill behaviour
电缆锚杆设计连续数值工具的评估和膏体回填行为的长期评估
- 批准号:
41646-2001 - 财政年份:2001
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
Determining the mechanical properties of as-placed cemented paste backfill for underground mining
确定地下采矿现浇胶结糊状充填材料的力学性能
- 批准号:
229093-1999 - 财政年份:2001
- 资助金额:
$ 1.82万 - 项目类别:
Collaborative Research and Development Grants
Development of a constitutive law describing the behaviour of modified geometry cable bolt support
开发描述修改几何形状的缆索锚杆支撑行为的本构定律
- 批准号:
41646-1995 - 财政年份:2000
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
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Laboratory and numerical study of post-peak constitutive behaviour of hard rock
硬岩峰后本构行为室内及数值研究
- 批准号:
41646-2006 - 财政年份:2010
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
Laboratory and numerical study of post-peak constitutive behaviour of hard rock
硬岩峰后本构行为室内及数值研究
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41646-2006 - 财政年份:2009
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
Laboratory and numerical study of post-peak constitutive behaviour of hard rock
硬岩峰后本构行为室内及数值研究
- 批准号:
41646-2006 - 财政年份:2008
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
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环境和实验室中重力驱动流体流动的理论和数值研究
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$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
Laboratory and numerical study of post-peak constitutive behaviour of hard rock
硬岩峰后本构行为室内及数值研究
- 批准号:
41646-2006 - 财政年份:2006
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
The theoretical and numerical study of gravity driven fluid flows in the environment and the laboratory
环境和实验室中重力驱动流体流动的理论和数值研究
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4039-2005 - 财政年份:2005
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual