水文地质条件对地下水封洞库选址的影响研究

Study on the Effect of Hydrogeological Conditions on the Site Selection of Underground Oil Storage in Rock Caverns

地下水封洞库因其安全、环保、建造成本低等优势,已成为石油储备的重要形式,但场地的水文地质条件决定着洞库建设的成败。本文从地下水封洞库建库的适宜性条件分析入手,明确了对洞库选址具有重要影响的水文地质条件,即洞库所处的水文地质单元位置、地下水水位、岩体渗透性、地下水水质,在此基础上建立了地下水封洞库选址适宜性评价指标体系,通过层次分析法确定了各评价指标的权重,并通过黄岛地下水封洞库实例验证了该评价指标体系的可靠性。

Due to the advantages of security,environmental protection,low construction cost and so on,underground oil storage in rock caverns will be an important form of oil storage.The hydrogeological conditions on site are indispensable to the successful construction of underground caverns.This paper analyzes the suitable conditions in the construction of underground caverns and confirms the hydrogeological factors which are important in the site selection of underground caverns： the location of underground caverns in hydrogeological unit,groundwater level,rockmass permeability and groundwater quality.On the basis of the analysis and research of hydrogeological conditions,the paper establishes the equation to evaluate the suitability of the selected site,assigns the weight to each indicator with the method of hierarchy analysis,and verifies the evaluation system by applying the system to the underground oil storage in rock caverns in Huangdao.