Theoretical analysis on stress distribution characteristics around a shallow buried spherical Karst cave containing fill materials in limestone strata

The chief objective of the article is to learn spatial characteristics stress distribution around a shallow buried spherical Karst cave containing fill materials in limestone strata. First, considering effect external load, field Earth’s crust, internal filling and geomorphology China, axisymmetrical model was established. Concurrently, combing available work concept elasticity, boundary conditions are determined. Subsequently, Love displacement method introduced, component expressions were obtained. diagram each summarized, which affected by various influencing factors. Finally, prove rationality general solution, numerical simulation carried out based on practical engineering, maximum error less than 5%. Thus, analytical solution could represent karst