凝结水对碳酸盐岩溶蚀实验及数值模拟分析

doi:10.13722/j.cnki.jrme.2014.s2.032

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Abstract In order to protect stone relics from the infraction of condensation water，it is necessary to study the mechanism of condensation water. Based on dissolution experimental methods，the dissolution of condensation water on carbonate rocks was stimulated with the self-made static and dynamic experimental system. Considering CO2 concentration，temperature and humidity，the effect of different factors on the dissolution process was analyzed and the mass loss，microstructure，water change，and etc. were tested during the experiment process. Finally，the process of dissolution was stimulated by the numerical software Phreeqc to verify the accuracy of simulation experiment. Static and dynamic simulation experiments show that condensation water dissolves carbonate rocks increasing with CO2 concentration and the dissolution of limestone is greater than dolomite. In the dynamic simulation experiment of vapor condensation，dolomite dissolution and rock porosity are significantly increased because the microscopic vapor is strong intrusive. Dissolution process and calculated dissolution depth are consistent with numerical simulation results. Dissolution curve shows quadratic indicating that preliminary dissolution is faster and post-dissolution is gentler. Calculated dissolution depth of limestone is 0.027 6 mm and the dissolution depth of dolomite is 0.013 6 mm in a year.

Key words： rock mechanics dissolution experiment software Phreeqc condensation water carbonate rocks numerical simulation

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	Articles by authors
	ZHANG Ao1
	FANG Yun2
	CHEN Jianping3
	FAN Zilong3

Cite this article:

ZHANG Ao1,FANG Yun2,CHEN Jianping3, et al. DISSOLUTION EXPERIMENT AND NUMERICAL SIMULATION ANALYSIS FOR CONDENSATION WATER ON CARBONATE ROCKS[J]. , 2014, 33(S2): 3648-3656.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.s2.032 OR https://rockmech.whrsm.ac.cn/EN/Y2014/V33/IS2/3648

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