摘要
压缩空气储能技术因其经济性、安全性和高效性在储能领域具有广泛应用前景。本文基于有限差分法(FDM),采用FLAC3D软件对压缩空气储能硐库的三种截面形状(圆形、马蹄形和城门洞形)进行了三维数值模拟分析。研究了不同截面形状对硐库应力分布、位移变形及围岩塑性区的影响。结果表明,圆形截面在开挖和运营阶段均表现出较好的稳定性,顶板和底板沉降量及水平位移最小,竖直方向和水平方向的应力集中程度最低,塑性破坏区域最小且分布均匀。相比之下,马蹄形和城门洞形截面存在显著的应力集中和塑性区分布不均,易发生局部破坏。本文为压缩空气储能硐库的截面形状优化设计提供了参考。
Compressed air energy storage technology has a wide application prospect in the field of energy storage because of its economy,safety and high efficiency.Based on the finite difference method(FDM),this paper uses FLAC3D software to simulate three kinds of cross section shapes(circle,horseshoe shape and gate cavity shape)of compressed air storage warehouse.The influence of different section shapes on the stress distribution,displacement deformation and plastic zone of surrounding rock is studied.The results show that the circular section exhibits good stability in both excavation and operation phases,the settlement and horizontal displacement of roof and floor are minimal,the stress concentration in vertical and horizontal directions is minimal,and the plastic failure area is minimal and evenly distributed.In contrast,there are significant stress concentration and uneven distribution of plastic zone in the section of horseshoe shape and city gate cave,and local failure is easy to occur.This paper provides a reference for the section shape optimization design of compressed air storage warehouse.
作者
郑斌
姚院峰
赵亚龙
ZHENG Bin;YAO Yuanfeng;ZHAO Yalong(Central Southern China Electric Power Design Institute Co.,Ltd.of China Power Engineering Consulting Group,Wuhan 430071,China)
出处
《电力勘测设计》
2025年第8期9-13,91,共6页
Electric Power Survey & Design
关键词
压缩空气储能
地下硐库
有限差分法
FLAC3D
compressed air energy storage
underground storage
finite difference method
FLAC3D
