孤东油田围堤问题分析与对策

ANALYSIS AND COUNTERMEASURES OF THE PROBLEMS OF GUDONG OILFIELD COFFERDAM

孤东油田地处黄河入海口，是黄河泥沙填海尚未成陆地围海筑堤开采的一个年产原油500万t的大油田。由于地貌特殊，围堤潜在问题较多。本文叙述了孤东油田围堤建设前后的地域情况，通过计算分析认为黄河洪水、风暴潮对围堤构成的威胁破坏最大，同时指出内涝、软基、坝体质量、植被生态中存在的问题；提出了采取引黄淤临、机械吹填洼地、导沙火海、锥探灌浆等措施，可解决孤东油田围堤问题。

Gudong Oilfield is located in the Yellow River estuary, when the Yellow River sediment had not turned the tideland into land completely, it started to be exploitedby enclosing tideland and building dikes, and it had become a large oilfield which produces 500 tons oil per year. Due to the expecil land forms, there are many latent problems of the cofferdam. This paper re1ates the terrain condition of Gudong Oilfield beforeand after cofferdam built, through caclulation and analysis, we think that the YellowRiver flood, storm surge menave and damange the cofferdam most severely, point outthe problems on internal waterlogging, spongy foundation, dikesxquallty, vegetationand ecology environment, and put forward some measures-silting the Yellow River water up the land facing the river, filling low-land by using dredgers, leading the sediment to the sea, drilling and grouging the dikes, etc. -to solve the problems 0f GudongOilfield cofferdam.