废弃矿井抽水蓄能地下水库的构建既可有效利用废弃煤矿地下空间，又可实现风能、光能等可再生能源的大规模利用，还可防止废弃矿井地质灾害的发生。全面阐述了废弃矿井抽水蓄能地下水库的概念与构建技术，根据地下水库所处的工程与应力环境，指出了构建废弃矿井抽水蓄能地下水库至少有2个科学问题需要解决:一是水文地质、水化学特征与地下水循环过程对选址的影响;二是围岩体-支护结构的稳定性和密闭性对建设和运行的影响，并全面综述了废弃矿井抽水蓄能地下水库技术框架及研究现状。针对上述问题，结合废弃矿井抽水蓄能地下水库建设的矿井地下空间利用途径、岩体稳定性及地下水库库容、巷道围岩长期变形及支护的时效性与水循环对水源及水质的保障等方面的研究现状，分别从地下水库库容、地下水循环、围岩稳定性与水质因素等4个方面进行研究，揭示了废弃矿井抽水蓄能地下水库构建的关键因素，即准确计算地下水库特征库容，掌握地下空间有效库容的变化规律;良好的水循环既可保证地下水库合理的库容，又能保证水动力过程不影响工程的安全;明确矿井水文地质特征及水库密闭性、地下空间围岩稳定性及应对措施，保证地下水库合理库容及工程安全;实时全空间矿井水品监测、水污染预测与防治，保障地下水水质安全及抽水蓄能设备安全使用的需要。最后以江苏权台煤矿为例，指出在原有矿井基础上改建为矿井抽水蓄能电站需要采取的措施，论证了废弃矿井地下空间作为抽水蓄能的地下水库利用的可行性，为废弃矿井地下水库构建基础问题进行了有益的探索。

Underground pumped storage reservoir using abandoned coal mine could achieve not only high efficiency underground space utilization, but also realize a large scale renewable energy storage, such as wind and PV energy. This method also prevents abandoned mine from geological disasters. According to the mechanical strata environment of abandoned coal mine reservoir, this paper comprehensively introduces the concept, principle and technology of pumped storage underground reservoirin abandoned coal mine. This research explains that there are generally two scientific problems required to be solved in technical implementation: one is the influence of hydrogeology, hydro chemical characteristics and ground water circulation process on site selection; the other one is the influence of the stability and tightness of surrounding strata support structure during water circulation processes. The paper has also reviewed the technical framework of the pumped storage underground reservoir in abandoned mine.In view of the problems, the paper has analyzed the researches on the construction of underground pumped storage reservoir in abandoned coal mines, such as mine underground space utilization, rock mass stability and underground reservoir capacity, long term deformation of roadway surrounding rock and timeliness of support and the protection of water sources and water quality by water circulation. Furthermorethe paper has analyzed the four aspects of underground reservoir capacity, groundwater circulation, surrounding rock stability and water quality factors, which reveals the key factors for the construction of pumped storage underground reservoir in abandoned mine, and then providesthe accurate calculation of storage capacity of underground reservoir with the grasping of effective storage capacity of underground space. Appropriate water circulation couldfirstly ensure the reasonable storage capacity of underground reservoir, secondly ensure that the hydrodynamic process does not affect the safety of project,thirdly clarify the hydrogeological characteristics of the mine and the tightness of the reservoir, and fourthly keep the stability of underground space surrounding rock and the safety of reasonable storage capacity. Real time full space mine water monitoring is also required for water pollution prediction and prevention, which ensures the safety of groundwater quality and the safe manipulation of pumped storage equipment.Finally, the Quantai coal mine was introduced as an example,which could be taken as a pilot implementation for converting into a coal mine pumped storage power station. The feasibility of underground space in abandoned mines as pumped storage underground reservoir is demonstrated. The paper has made a useful discussion for the construction of underground reservoir in abandoned coal mines.

1 废弃矿井抽水蓄能机理及其结构

2 废弃矿井地下水库构建科学问题

   2.1 废弃矿井地下水库面临的难题

   2.2 废弃矿井抽水蓄能地下水库构建技术框架

3 废弃矿井抽水蓄能地下水库建设研究现状

   3.1 矿井地下空间利用途径研究

   3.2 岩体稳定性及地下水库库容研究

   3.3 巷道围岩长期变形及支护的时效性研究

   3.4 水循环对水源及水质的保障分析

4 废弃矿井抽水蓄能地下水库构建的关键因素

   4.1 水库库容

   4.2 地下水循环

   4.3 地下水库围岩稳定性

   4.4 水质因素

5 工程设计示例分析

   5.1 废弃矿井抽水蓄能设计概况

   5.2 电站地下水库建设

   5.3 经济性分析

6 结论