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根据长庆油田的地域特征,结合长庆油田多年地基处理技术的发展历程,综合分析了湿陷性黄土、液化砂土、杂填土等油田建设工程地基处理实例,论述了长庆油田从强夯法、垫层法、灰土挤密桩、DDC法(孔内深层夯扩挤密桩法)到CFG桩(中心压灌混凝土桩)、钢筋混凝土桩等一系列地基处理技术。针对长庆油田地基处理技术方面目前存在的规范如何合理运用、砂土地区水撼法和场地加湿技术亟待研究等问题,指出了长庆油田地基处理技术应解决的问题。
According to the regional characteristics of Changqing Oilfield and the development course of the foundation treatment technology for many years in Changqing Oilfield, this paper comprehensively analyzes the treatment cases of collapsible loess, liquefied sandy soil and miscellaneous fill in oilfield construction projects, Ramming method, cushion method, lime-soil compaction pile, DDC method (deep-hole expansion compaction method in the hole) to CFG pile (CFP pile), reinforced concrete pile and a series of foundation treatment technologies. Aiming at the problems of how to use the existing regulations of foundation treatment technology in Changqing Oilfield, the methods of water shaking method and site humidification in sand and soil areas, the problems to be solved in foundation treatment of Changqing Oilfield are pointed out.