【作者】 李志萍；

【导师】 赵阳升；

【作者基本信息】 太原理工大学 ， 工程力学， 2003， 硕士

【摘要】 首先，作者对芒硝样品进行了溶解特性实验，在实验过程中不断改变溶解环境，并对不同环境下芒硝溶解特性进行了测试，得出溶液温度、浓度与芒硝溶解速度的关系。它为致裂水溶开采数值模拟提供溶解参数。 另外，作者通过现场盐类矿床致裂水溶开采试验资料，对致裂水溶开采过程机理作了深入研究。建立了盐类矿床致裂水溶开采的固流扩散耦合数学模型，使用Fortran语言编制了有限元计算程序。 在此基础上，作者对盐类矿床致裂水溶开采致裂过程进行了数值模拟，得出水溶致裂不同阶段开裂裂缝宽度、裂缝内盐溶液水压场变化规律。并对水溶开采过程进行了数值模拟，得出水溶开采不同阶段溶腔高度、溶腔内盐溶液水压场、速度场以及浓度场变化规律。 盐类矿床致裂水溶开采的数值模拟和实验有助于我们提出合理的盐矿水溶开采参数并实现控制开采，在开采中延长卤井的使用寿命并且提高生产效率。更多还原

【Abstract】 At first, the author made a experiment with Glauber’s salt to get its dissolution characteristic. During the experiment, the author changed dissolution environment, and did a test of dissolution characteristic in different dissolution environment, and got the relation of temperature, salinity and dissolution rate of Glauber’s salt, so as to supply dissolution characteristic parameter for the numeral simulation of multi-well cracking solution mining of salt deposit.Otherwise, the author lucubrated mechanism of cracking solution mining through data measured in the scene of multi-well cracking solution mining of salt deposit. The author also established solid-fluid-diffusion combined mathematic model for multi-well cracking solution mining of salt deposit, and made finite-unit calculation program with "Fortran".On the base of study above, the author made numerical simulation for the cracking process in multi-well cracking solution mining of salt deposit, and got the rule of the movement of crack width, hydraulic pressure field in different phases. Then, the author made numerical simulation for the solution mining process incracking solution mining of salt deposit, and got the rule of the movement of cavity height, hydraulic pressure field, velocity field and salinity field in different phases.Numerical simulation and experiment for multi-well cracking solution mining of salt deposit is advantageous for us to offer rational parameters of multi-well cracking solution mining of salt deposit, to make controlling mining into truth, to prolong using life of salt wells and to improve their productive efficiency.更多还原