Limit Analysis of Uplift Stability of CAES Rock Cavern Considering Crack Initiation and Groundwater
摘要
Accurate characterization of the joint influence of crack initiation position and groundwater is pivotal for the assessment and prediction of uplift stability in compressed air energy storage (CAES) caverns. Existing analytical models for cavern uplift failure generally do not incorporate these two factors concurrently, thereby leaving a theoretical gap. This study presents a rigorous limit analysis framework for evaluating uplift failure in circular rock caverns for CAES, with explicit consideration of crack initiation positions and the influence of groundwater. By integrating the Hoek–Brown (H–B) criterion and the upper-bound limit analysis, analytical solutions for the crack initiation angles