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利用关退煤矿既有井巷地下空间改造为压缩空气储能电站地下储气库，可充分盘活废弃矿山资源；但软岩岩硐在高内压作用下易出现拉裂失稳与密封性失效，因此有必要研究内衬式储气岩硐的荷载传递机制及稳定性。基于山东某煤矿工程及水文地质条件，采用ABAQUS软件建立三维数值模型，对钢衬-钢筋-衬砌-锚杆联合支护体系在不同储气压力、不同断面形式、断层影响及大直径竖井储气库工况下的力学响应进行了分析。结果表明：钢衬-钢筋-衬砌-锚杆支护体系对高压储气库稳定运行具有重要作用；在6～10 MPa储气压力下，圆形衬砌拉应力由19 MPa递增至27 MPa，钢衬拉应力由161 MPa递增至235 MPa，钢筋拉应力由132 MPa递增至196 MPa；马蹄形断面及断层影响均会使关键支护结构承受更大的拉应力；大直径竖井方案中靠近地表部位受拉更为明显。研究结果揭示了关退煤矿内衬式岩硐压缩空气储能系统的荷载传递与稳定性特征，可为软岩地下储气库设计理论及安全控制提供参考，对关退煤矿地下空间资源可持续开发利用具有工程意义。
Abstract：Utilizing the existing underground roadways and chambers of decommissioned coal mines for the construction of underground gas storage caverns in compressed air energy storage(CAES) power stations can effectively revitalize abandoned mining resources. However, under high internal pressure, soft-rock caverns are prone to tensile cracking instability and sealing failure. Therefore, it is necessary to investigate the load transfer mechanism and stability of lined gas storage caverns. Based on the engineering and hydrogeological conditions of a coal mine in Shandong Province, a three-dimensional numerical model was established in ABAQUS to analyze the mechanical responses of a combined support system consisting of a steel liner, reinforcement bars, lining, and rock bolts under different gas storage pressures, cross-sectional shapes, fault influences, and largediameter shaft storage conditions. The results show that the steel liner – reinforcement – lining – rock bolt support system plays a vital role in maintaining the stable operation of high-pressure gas storage caverns. As the storage pressure increases from 6 to 10 MPa, the tensile stress in the circular lining rises from 19 MPa to 27 MPa, the tensile stress in the steel liner increases from 161 MPa to 235 MPa, and the tensile stress in the reinforcement bars increases from 132 MPa to 196 MPa. Both the horseshoe-shaped cross-section and fault effects cause greater tensile stresses in key supporting structures. In the large-diameter shaft scheme, tensile effects are more pronounced in the sections closer to the ground surface. The findings reveal the load transfer and stability characteristics of lined rock-cavern CAES systems in decommissioned coal mines, and can provide a reference for the design theory and safety control of soft-rock underground gas storage caverns, with engineering significance for the sustainable development and utilization of underground space resources in abandoned coal mines.
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基本信息:
DOI：10.13578/j.cnki.issn.1671-1556.20241069
中图分类号:TD98;TH41;TK02
引用信息:
[1]李福清,季雨坤,李福锋,等.关退煤矿压缩空气储能内衬式岩硐荷载传递机制及稳定性研究[J].安全与环境工程,2026,33(02):88-98.DOI:10.13578/j.cnki.issn.1671-1556.20241069.
基金信息:
国家自然科学基金项目（42307202）; 江苏省基础研究计划项目（BK20221135）; 中国博士后科学基金项目（2022M723400）; 中央高校基本科研业务费专项资金项目（2022QN1038）; 深地工程智能建造与健康运维全国重点实验室开放基金项目（SDGZ2541）
2026-02-12
2026-02-12
2026-02-12