岩石冻融循环试验建议性方案探讨

申艳军; 杨更社; 荣腾龙; 刘慧; 吕伍杨

doi:10.11779/CJGE201610005

岩石冻融循环试验建议性方案探讨 English Version

1. 西安科技大学建筑与土木工程学院,陕西西安 710054；
2. 中国矿业大学（北京）力学与建筑工程学院,北京 100083；
3. 中国地质大学（武汉）工程学院,湖北武汉 430074

基金项目: 国家自然科学基金项目（41302228）; 中国博士后科学基金项目（2013M532070,2014T70931）; 陕西省重点科技创新团队项目（2014KCT-30）; 陕西省博士后科学基金项目（2014051）

详细信息

作者简介:
申艳军(1984- ),男,博士,2007年毕业于中国地质大学(武汉)土木工程专业,现为副教授,主要从事裂隙岩体冻融损伤及断裂特征研究。E-mail: shenyanjun993@126.com。

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出版历程
- 收稿日期: 2015-09-24
- 发布日期: 2016-10-24

Proposed scheme for freeze-thaw cycle tests on rock

1. School of Architecture and Civil Engineering, Xi’an University of Science and Technology, Xi'an 710054, China;
2. School of Mechanics and Civil Engineering, China University of Mining & Technology, Beijing 100083, China;
3. Faculty of Engineering, China University of Geosciences, Wuhan 430074, China

摘要

摘要: 岩石冻融循环试验是低温岩石力学基础性试验,其主要涉及冻融循环温度、冻融时长、循环次数等3个指标。但目前关于指标的选取,国内外的试验规程或相关学者研究成果,均未给出明确参考依据,对岩石冻融循环试验方案的确定造成较大困扰。本研究旨在明确各指标的确定办法,提出建议性岩石冻融循环试验方案。首先,展开国内外冻融循环试验方案的全面综述,指出目前冻融循环试验方案确定时所存在问题,并藉此明确冻融循环试验方案思路;接着,针对以上三大影响指标,通过设计室内岩石冻融循环试验,详细探讨冻融循环温度、冻融时长、循环次数对岩石物理、力学参数的影响,最终根据试验结果,明确出针对不同岩性、孔隙率所对应的建议性试验方案。本研究将为后期冻融循环指标选取及标准化试验方案建立提供技术借鉴。
- 岩石力学 /
- 冻融循环试验 /
- 温度 /
- 时长 /
- 循环次数
Abstract: The freeze-thaw cycle test on rock is a fundamental test in low-temperature rock mechanics field,which mainly involves three indexes: freeze-thaw cycle temperature, time period of the cycle and cycle number. At present, there isn’t a clear reference about the selection of these indexes from the worldwide experimental procedures or scholars, which brings any huge obstacle to the enactment of the scheme for freeze-thaw cycle tests on rock. The methods to confirm the indexes of this kind of experiment are determined, and a test scheme for freeze-thaw cycle of rock is proposed. Firstly, a comprehensive review of the worldwide freeze-thaw cycle test schemes is summarized and the problems to enact this test scheme are pointed out, and the ideas about the proposed test scheme is clarified. Then, by designing the indoor rock freeze-thaw cycle tests, the influence of these three indexes on the physical and mechanical parameters of rock is discussed. According to the results, the proposed test method with different lithologies and porosities is clearly defined. This study will provide a reference for the selection of freeze-thaw cycle indexes and standard freeze-thaw test methods.
- rock mechanics /
- freeze-thaw cycle test /
- temperature /
- time period /
- cycle number

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参考文献(30)

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