Deep underground hydrogen storage structure and its construction method

Abstract

Disclosed is a deep underground hydrogen storage structure and its construction method. The structure comprises a concrete lining layer, a hydrogen barrier layer, a connecting framework, and multiple supporting arms; multiple supporting arms are spaced apart around the perimeter of the chamber, with each supporting arm having a connection end and a geotechnical end, and a grouting channel that connects the connection end and the geotechnical end. The grouting channel has a grout inlet at the connection end and a grouting port at the geotechnical end. This disclosure enables grouting reinforcement of the rock and soil layers around the geotechnical end through the grouting port of the grouting channel, achieving coordinated stress sharing between the deep underground hydrogen storage structure and the surrounding rock and soil layers, and significantly improving the safety performance of the deep underground hydrogen storage structure.

Dependencies are inferred from the claim text.