某地下水封洞库工程水幕系统设计初步研究

人工水幕系统对地下水封洞库长期稳定运行十分重要。结合某地下水封洞库,采用理论分析和数值计算的方法,对水幕系统的设计进行初步研究。研究表明,施工期水幕孔注水可保证岩体中存在足够的水封压力,运行期采用注水运行方式可有效控制洞库的涌水量和维持必要的储油压力。最后分析了地质构造对水幕的影响,并对水幕巷道和水幕孔进行了布置,对排水和补水进行了设计。

Preliminary study on underground water sealed caverns curtain system design

Manual water curtain is very important for a long-term stable operation of under- ground water sealed caverns.With some underground water sealed caverns, the preliminary research was carried out on design of water-curtain system by theory analysis and numerical calculation. The study showed that sufficient water seal pressure could be maintained by hole of water curtain injected with water during constructing period, and surge water amount of cave depot could be effectively controlled and necessary oil storing pressure be maintained by water flooding during operating period. At last, effects to water curtain by geologic structure were analyzed, roadways and holes of water curtain were arranged, and water drainage and supplement were designed.