Research On The Mechanical Properties Of Inhomogeneous Frozen Wall With Water-abundant Bed Rock

In recent years, with frozen depth and rock layer thickness increasing, the pressure is big,high temperature gradient, the materials is nonlinear problems such as in front. It broughtgreat difficulties to the construction of new Wells. Some scholars have realized the influenceof non homogeneity of freezing wall, the temperature field of frozen wall is uniform, the rockmechanics properties is highly affected by the temperature. Therefore, it is necessary tointensify the non-uniform temperature field of freezing wall evolution regularity and richwater deep bedrock heterogeneity frozen wall mechanical properties research, to realize thedeep rich water in bedrock thickness of frozen wall in freezing method constructioncalculation and have certain guiding significance to the construction safety.Based on Hujiahe main shaft frozen engineering as the background, adopts the integratedresearch methods such as theoretical analysis, numerical simulation, the "rich deep waterfrozen wall rock heterogeneity mechanical characteristics". Based on the viscoelastic theoryof plasticity, analyses the stress field of frozen wall, radial deformation law, bearingperformance and uses the "stratification theory model is applied to the heterogeneouscalculation of frozen wall," temperature "is more reasonable than; Limited is researchedunder the condition of high at the same time, considering the working plane bottom differentconstraint conditions, the analytical solutions of the radial deformation of frozen wall, andapplied to Hujiahe coal mine main shaft, the impact on the various parameters are discussed.Using ANSYS finite element software to simulate the temperature field of frozen wallevolution law, on the basis of the numerical simulation of temperature field, and analyzes theheterogeneous law of stress field and deformation field of frozen wall, and the radialstratification theory was verified.By conducting profound rich water rock heterogeneity frozen wall mechanical propertiesresearch, on the basis of the temperature field obtained stress field and deformation field evolution law, for the deep rich water in bedrock of frozen wall design provides a certainreference value.