海水腐蚀对砂岩物理力学特性与微观结构破坏特征的影响研究OA北大核心CSTPCD
Experimental study on the influence of seawater corrosion on the physical and mechanical properties and microstructural failure behavior of sandstone
针对海底隧道围岩在海水腐蚀下物理力学性能劣化的问题,选取典型砂岩作为研究对象,基于深圳海底隧道所在区域海水的取样数据配制不同浓度的模拟海水溶液,对砂岩试样进行不同浓度、不同时间的腐蚀浸泡处理,再进行单轴压缩试验,并结合声发射与扫描电子显微镜(SEM)技术,对海水腐蚀损伤砂岩的物理力学特性、破坏过程和微观结构演化特征进行分析研究.结果表明:随着腐蚀溶液浓度增加,砂岩试样表面越早发生脱落且面积越大,试样密度小幅度增加;峰值应力和弹性模量均随腐蚀时间增…查看全部>>
In this study,experimental tests were conducted on sandstone specimens to study the influence of seawater corrosion on their physical and mechanical properties as well as failure behav-ior.Different concentrations of simulated seawater solutions were prepared based on seawater sampling data from the vicinity of the Shenzhen cross-harbor tunnel.Sandstone specimens were first treated with corrosion immersion in these solutions for different times before they w…查看全部>>
周韬;陈昌鹏;张旸旸;殷雪菡;陈家嵘
深圳大学深地科学与绿色能源研究院,深圳 518060深圳大学深地科学与绿色能源研究院,深圳 518060深圳大学深地科学与绿色能源研究院,深圳 518060深圳大学深地科学与绿色能源研究院,深圳 518060||Department of Civil Environmental Engineering,University of Alberta,Edmonton Alberta T6G1K7,Canada深圳大学深地科学与绿色能源研究院,深圳 518060
矿山工程
海水腐蚀水岩作用单轴压缩声发射SEM
seawater corrosionwater-rock interactionuniaxial compressionacoustic emissionSEM
《矿业科学学报》 2024 (2)
178-189,12
国家自然科学基金(52274090)广东省自然科学基金(2022A1515010827)深圳市自然科学基金(JCYJ20210324093400001)
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