Analysis on Difference Between Rock Salt Dissolving Model with and Without Mechanical Effect
Analysis on Difference Between Rock Salt Dissolving Model with and Without Mechanical Effect
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有机械效应与无机械效应岩盐溶解模型的差异分析
DOI：
10.11648/j.ajce.20160406.20
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发表时间：
2016-12
期刊：
影响因子：
--
通讯作者：
周辉
中科院分区：
文献类型：
--
作者：
汤艳春;刘瑞龙;周辉
为了保证岩盐洞室在冲刷过程中的稳定性，有必要对岩盐的溶解机理与力学效应之间的关系进行研究。通过对岩盐溶解机理的分析，以及有力学作用和没有力学作用的岩盐溶解效果，研究了有力学作用和没有力学作用的岩盐溶解模型的区别。结果表明：有力学作用和无力学作用的岩盐溶解机理相同，但有力学作用的岩盐，特别是在产生塑性应变和裂纹后，有力学作用和无力学作用的岩盐溶解效果存在差异；与无力学效应溶化模型上的“扩散系数”D参数相比，在溶化过程中假定溶化作用面不变的情况下，提出了“等效扩散系数”D*的新概念来描述具有力学效应的岩盐宏观溶化速度。D*是等效塑性应变和溶解时间的变量；基于无力学效应岩盐溶解模型和D*新概念，建立了具有力学效应的岩盐溶解模型；通过对力学-溶解耦合作用下单轴压缩细观力学试验数据的分析，提出了D*的计算方法，得到了轴向塑性应变、溶解时间与D*之间的关系。研究结果可为进一步分析岩盐的力学-溶解耦合机理提供研究基础。
For the stability of rock salt cavern during the washing process, the research on the relationship between the dissolving mechanism and mechanical effect of rock salt is necessary. Through analyses on rock salt dissolving mechanism, and rock salt dissolving effect with and without mechanical effect, difference between rock salt dissolving model with and without mechanical effect has been studied. It can be concluded that rock salt dissolving mechanism with and without mechanical effect is same, but with mechanical effect, especially after the plastic strain and cracks have been produced, difference between the dissolving effect with and without mechanical effect has been existed; compared with the parameter “diffusion coefficient” D on the dissolving model without mechanical effect, the new conception “equivalent diffusion coefficient” D* has been proposed to describe the macro-dissolving speed of rock salt with mechanical effect under the assumption that dissolving action face has not been changed during the dissolving process. D* is a variable of the equivalent plastic strain and dissolving time; based on rock salt dissolving model without mechanical effect and the new concept D*, rock salt dissolving model with mechanical effect has been built; through analyzing the datum of uniaxial compression meso-mechanical test under the coupled mechanical-dissolving effect, the method to calculate D* has been proposed, and the relationship between axial plastic strain, dissolving time and D* has been obtained. The achieved results can provide a research foundation for the further analyses on coupled mechanical-dissolving mechanism of rock salt.
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影响因子：
--
作者：
Bangjin Fan
通讯作者：
Bangjin Fan
DOI：
--
发表时间：
2003
期刊：
Journal of Chongqing University
影响因子：
--
作者：
L. Xin
通讯作者：
L. Xin
DOI：
10.1016/j.ijrmms.2010.11.004
发表时间：
2011-01-01
影响因子：
7.2
作者：
Zhou, H. W.;Wang, C. P.;Duan, Z. Q.
通讯作者：
Duan, Z. Q.
DOI：
--
发表时间：
2005
期刊：
--
影响因子：
--
作者：
Li Wei-guo
通讯作者：
Li Wei-guo
影响因子：
0.8
作者：
V. Zhigalkin;O. Usol’tseva;V. Semenov;P. Tsoi;V. Asanov;A. Baryakh;I. L. Pan’kov;V. Toksarov
通讯作者：
V. Zhigalkin;O. Usol’tseva;V. Semenov;P. Tsoi;V. Asanov;A. Baryakh;I. L. Pan’kov;V. Toksarov