李玉涛, 张彬, 石磊, 彭振华, 李俊彦. 2019: 海岛环境下地下水封油库竖直水幕系统水封可靠性研究. 工程地质学报, 27(2): 267-276. DOI: 10.13544/j.cnki.jeg.2018-069
    引用本文: 李玉涛, 张彬, 石磊, 彭振华, 李俊彦. 2019: 海岛环境下地下水封油库竖直水幕系统水封可靠性研究. 工程地质学报, 27(2): 267-276. DOI: 10.13544/j.cnki.jeg.2018-069
    LI Yutao, ZHANG Bin, SHI Lei, PENG Zhenhua, LI Junyan. 2019: WATER-SEALED RELIABILITY OF VERTICAL WATER CURTAIN SYSTEM IN UNDERGROUND OIL STORAGE CAVERN IN ISLAND ENVIRONMENT. JOURNAL OF ENGINEERING GEOLOGY, 27(2): 267-276. DOI: 10.13544/j.cnki.jeg.2018-069
    Citation: LI Yutao, ZHANG Bin, SHI Lei, PENG Zhenhua, LI Junyan. 2019: WATER-SEALED RELIABILITY OF VERTICAL WATER CURTAIN SYSTEM IN UNDERGROUND OIL STORAGE CAVERN IN ISLAND ENVIRONMENT. JOURNAL OF ENGINEERING GEOLOGY, 27(2): 267-276. DOI: 10.13544/j.cnki.jeg.2018-069

    海岛环境下地下水封油库竖直水幕系统水封可靠性研究

    WATER-SEALED RELIABILITY OF VERTICAL WATER CURTAIN SYSTEM IN UNDERGROUND OIL STORAGE CAVERN IN ISLAND ENVIRONMENT

    • 摘要: 我国地下水封油库多建造在沿海地区陆地岸线以内,在海岛建造地下水封油库尚未有先例。海岛四周为海水包围,地下洞室的开挖会导致海水入侵,影响地下油库的使用寿命。为保证地下洞库的水封可靠性需布置水幕系统,现今已建油库的水幕系统多以水平水幕为主,尚未有专门针对竖直水幕系统水封可靠性的相关研究。竖直水幕系统相比于水平水幕系统具有操作简单、对原岩扰动小等优点,且可以起到对海水的"屏障"作用,因此开展海岛环境下地下水封油库竖直水幕系统的水封可靠性研究具有重要意义。论文采用数值模拟方法,研究竖直水幕孔的布置方式,根据正交试验确定竖直水幕孔的最佳布置参数;以浙江某海岛地下水封油库为依托,通过无水幕、设置水平水幕和设置竖直水幕3种情况的对比分析,研究竖直水幕系统的水封可靠性。研究得出:在只设置竖直水幕系统情况下,可以满足水封条件,且相较于水平水幕系统,竖直水幕系统可以更好地隔绝相邻主洞室间的串油。该研究成果为海岛环境下地下水封油库水幕系统优化设置提供了理论依据。

       

      Abstract: Most of the underground water-sealed oil storage caverns in China are built in coastal areas and within the continental coastline. There are few studies about the construction of underground water-sealed oil storage cavern in island. Seawater surrounds the island, and the excavation of underground caverns can lead to seawater intrusion, affecting the service life of underground water-sealed oil storage cavern. In order to ensure the water-sealed reliability of underground cavern, it is necessary to arrange the water curtain system. Nowadays, underground water-sealed oil storage cavern is mostly equipped with horizontal water curtain system. There are few researches on water-sealed reliability of vertical water curtain system. Compared to horizontal water curtain system, vertical water curtain system has advantages of easy to drill and small disturbance on original rock. In addition, vertical water curtain system can weaken the seawater intrusion. Therefore, the study on water-sealed reliability of vertical water curtain system has great significance. In this paper, we use numerical simulation to research the arrangement methods of vertical water curtain system. According to the orthogonal design, we obtain the best arrangement parameters of the vertical water curtain boreholes. Based on the underground water-sealed oil storage cavern of an island in Zhejiang province, we study the water-sealed reliability of vertical water curtain system by comparing the results of cavern without water curtain system, cavern with horizontal water curtain system and cavern with vertical water curtain system. The results show that in the case of only setting vertical water curtain system, it can satisfy the water-sealed reliability. Moreover, compared with horizontal water curtain system, vertical water curtain system can better prevent the flow of oil from one cavern to another. The results provide theoretical basis for the water-sealed reliability of vertical water curtain system in underground water-sealed oil storage cavern in island environment.

       

    /

    返回文章
    返回