| 化学腐蚀下岩土体力学特性变化的定量描述 |
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| 引用本文： | 崔强,冯夏庭,程昌炳,杨成祥.化学腐蚀下岩土体力学特性变化的定量描述[J].东北大学学报(自然科学版),2008,29(12):1778-1781. |
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| 作者姓名： | 崔强 冯夏庭 程昌炳 杨成祥 |
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| 作者单位： | [1]东北大学资源与土木工程学院,辽宁沈阳110004 [2]中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室,湖北武汉430071 |
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| 基金项目： | 国家自然科学基金国际合作重大项目(40172098); 国家自然科学基金资助项目(10472130) |
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| 摘 要： | 运用化学动力学理论和岩土体微观结构研究相结合的方法定量研究化学腐蚀作用下岩土介质力学特性的劣化行为.通过试验,得出黏土在酸性条件下,其无侧限抗压强度及针铁矿质量分数随腐蚀时间变化的规律.基于量子化学和结构化学理论,通过试验和计算得出红黏土胶结本质及微观结构模型参数,并建立该黏土无侧限抗压强度与针铁矿质量之间的定量关系.对针铁矿在酸性条件下的溶解反应进行化学动力学分析,得出该反应动力学各主要参数.结合红黏土微观研究结果,建立了岩土体无侧限抗压强度随时间变化的数学模型.编制程序,对贵州红黏土在酸液腐蚀作用下,其无侧限抗压强度随时间动态变化过程进行计算.结果表明,与试验规律吻合较好.
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| 关 键 词： | 化学腐蚀 红黏土 针铁矿 化学动力学 氢键 无侧限抗压强度 |
Quantitative Study on Deterioration of Mechanical Properties of Soilmass Under Chemical Corrosion |
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| CUI Qiang,FENG Xia-ting,CHENG Chang-bing,YANG Chengxiang.Quantitative Study on Deterioration of Mechanical Properties of Soilmass Under Chemical Corrosion[J].Journal of Northeastern University(Natural Science),2008,29(12):1778-1781. |
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| Authors: | CUI Qiang FENG Xia-ting CHENG Chang-bing YANG Chengxiang |
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| Institution: | CUI Qiang1,FENG Xia-ting1,2,CHENG Chang-bing2,YANG Chengxiang1(1.School of Resources & Civil Engineering,Northeastern University,Shenyang 110004,China,2.State Key Lab.of Geomechanics , Geotechnical Engineering,Institute of Rock , Soil Mechanics,Chinese Academy of Sciences,Wuhan 430071,China.) |
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| Abstract: | A new quantitative method is presented to describe the deterioration of mechanical properties of soilmass under chemical corrosion.The aim is to analyze the chemical corrosion effect on the environment medium on the basis of chemical kinetics in combination with the microstructrual study on soilmass.Leaching tests were conducted and a conclusion was drawn that the change of unconfined compressive strength of clay taken from Guizhou is relevant to the goethite content of clay.Based on the analyses of electri... |
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| Keywords: | chemical corrosion red clay goethite chemical kinetics hydrogen bond unconfined compressive strength |
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