文档介绍：
碱化学溶液腐蚀下岩石力学特性试验研究#
刘桃根,王伟,吕军,李雪浩**
(河海大学岩土工程科学研究所,岩土力学与堤坝工程教育部重点实验室,南京
210098)
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摘要:利用岩石三轴测试系统对三种碱化学溶液浸泡后的花岗岩进行了三轴压缩试验,探讨
了不同 pH 值碱化学溶液对花岗岩力学特性的腐蚀效应,获得了不同化学溶液对花岗岩强度
和变形特性的影响规律。并通过测量三种溶液浸泡过程中各溶液的 pH 值变化以及浸泡岩样
的质量变化分析化学溶液对岩石的腐蚀程度。结果表明,不同的碱化学溶液对花岗岩力学性
质的影响不同,并进一步分析了化学溶液对花岗岩强度的腐蚀机理。室内试验结果可为构建
花岗岩化学腐蚀条件下的本构模型提供重要的试验资料。
关键词:花岗岩;化学腐蚀;三轴压缩试验;应力应变曲线;腐蚀机理
中图分类号:TU 443
Experimental study on the mechanical behaviour of rock
under alkaline chemical corrosion
LIU Taogen, WANG Wei, LV Jun, LI Xuehao
(Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering,
Institute of Geotechnical Engineering, Hohai University, Nanjing 210098)
Abstract: A rock triaxial testing was used to conduct pression tests on the granites samples
which were soaked in three alkaline solutions. The effect of alkaline solutions with different pH values
on the mechanical properties of granites is studied. The influence of chemical solutions on strength and
deformation properties of granites is investigated. The corrosion degree is evaluated by measuring the
variation of pHs for three solutions and the variation of mass of soaked samples. The results show that
the effects of three alkaline solutions on the mechanical properties of granite are different. Furthermore,
the chemical erosion mechanism on the strength of granite is analyzed. Resu