安全与环境工程2025，Vol.32Issue(4)：24-33,10.DOI:10.13578/j.cnki.issn.1671-1556.20241072
压缩空气储能地下内衬硐库密封堵头力学模型与优化设计
Mechanical modeling and optimization of sealing plugs for underground lined rock caverns in compressed air energy storage
摘要
Abstract
The underground lined cavern is a crucial component of the compressed air energy storage.Due to the requirements for passage during construction and sealing during operation,every underground lined rock cavern requires one or more sealing plugs.The complex stress characteristics of these sealing plugs pose challenges for selection and design.This study conducts an in-depth analysis of four typical sealing plugs and utilizes theoretical analysis and numerical simulation to investigate the interface mechanical properties between the plugs and the surrounding rock.The results indicate that the wedge-shaped plug exhibits the best resistance characteristics and facilitates coordinated deformation between the plug and the surrounding rock interface.Based on these findings,the study conducts an optimization design study.The results suggest that the front inclination angle of the wedge-shaped plug should fall within the range of 25°—40°,while the potential rupture angle formula for the surrounding rock determines the rear inclination angle.Furthermore,the study proposes a length calculation formula for the plug based on the limit equilibrium analysis method,indicating that the required length of the wedge-shaped plug is calculated based on the plug's diameter,the applied pneumatic load,and the inclination angles of its front and rear ends.This research provides theoretical support and practical guidance for the design of sealing plugs in underground lining caverns.关键词
压缩空气储能/地下内衬硐库/密封堵头/优化设计Key words
compressed air energy storage/underground lined rock caverns/sealing plug/optimization design分类
资源环境引用本文复制引用
屈杰,刘形林,孙冠华,杨生彬,饶虎,于显杨,王娇..压缩空气储能地下内衬硐库密封堵头力学模型与优化设计[J].安全与环境工程,2025,32(4):24-33,10.基金项目
国家自然科学基金项目(12302507) （12302507）
湖北省自然科学基金重点项目(2022CFD031、2024AFD361) （2022CFD031、2024AFD361）
