Theoretical Analysis Of Cavern In Bedded Salt Rock Using Love Function

With the intensification of energy problem, the importance of energy storage is coming to be concerned by all nations in the world. Due to excellent geological conditions and physical mechanical properties, rock salt is hailed as the ideal medium for energy reserve in the USA and some developed countries in Europe. In recent years, the researches in energy storage in bedded rock salt have been carried out in our country. Compared to some foreign countries, the distribution of rock salt in our country embrace the unique characters, such as the rock salt are all layered, the thickness of them is thin, including interface in them and so on. We have no reference example that increases the difficulty in theoretical study. There is no exact theoretical solution at present; it severely limits the development and study of storage in bedded salt rock.Space ax-symmetric model is going to be used as the mechanical calculation model in this paper. At the same time, the gravity will be considered in derivation. It’s necessary to find out a solution on the basis of basic mechanical theory. Then, the main research work as follows(1) Firstly, selecting love displacement function as the basic function. The function including exponential function logarithm function and power function. Then it is able to gain the value of the coefficients in the equation by means of considering additional conditions. The guidance of elastic theory is needed in the whole process. Beside, the additional conditions include the boundary conditions and the continuity conditions in the interlayer. Finally, the precise solution or approximate solution could be got.(2) Selecting appropriate one as constitutive model to get the viscoelastic solution through the Laplace transformation. The result will correspond to rock-salt’s own properties, while it would play more positive role actually.(3) Drawing the space and planar diagrams of stress and displacement to summary the law as well as the characters in the changing process. It could describe the stress and deformation of energy storage cavern in the bedded salt rock.(4) Doing numerical simulation to mechanical calculation model with FLAC3D. On the one hand it can achieve the study’s visualization; on the other hand it may verify the integrity of description to the study through comparing the results...