黄河口裸置管线对海床土影响试验研究  

An In-situ Study of the Influence of the Nakedly Pipeline on the Seabed Soil's Strength in the Estuary of the Yellow River

作　　者：杨秀娟[1,2] 贾永刚[2] 远航 吕杰 

机构地区：[1]烟台大学文经学院建筑工程系,山东烟台264005 [2]中国海洋大学环境科学与工程学院,山东青岛266100 [3]山东即墨经济技术开发区建设管理委员会,山东青岛266200

出　　处：《中国农村水利水电》2010年第3期66-69,72,共5页China Rural Water and Hydropower

基　　金：国家自然科学基金(40472137);中石化重点科技攻关项目(JP05007)

摘　　要：黄河三角洲是胜利油田采油的主要区块,海床上分布有大量的输油管线。2005年8月6日至9日台风"麦莎"经过此地形成风暴潮。2005年8月5日和8月12日在风暴潮前后分别对胜利油田106钻井平台附近一条裸置海底管线铺设地区海床土工程性质进行了原位测量,并在管线拆除后于2006年9月5日对该地区进行了复测,发现:①由于管线的存在导致管线两侧潮滩的水动力条件发生改变,继而使得两侧海床土的性质发生了变化;②管线存在使得其影响区海床土强度增高,管线拆除后海床土强度降低均匀性变差;③风暴潮作用使海床土强度提高,均匀性增强。研究结果为波浪与管线共同作用下海床土变化研究提供典型实例。The Yellow River Delta is a main area to extract oil of the Shengli Oilfield. There are masswe oll plpehnes on me seaoea, and the existence of the pipelines affected the strength of sea-bed soils. The typhoon ＂Matsa＂ passed through this area from August 6% to 9 in 2005, and a stormtide was formed. Between August 5, 2005 and August 12, 2005, before and after the ＂Matsa＂, there were in-situ measurements in the pipeline affected regions, which were near the Shengli Oilfield＇s 106 Drilling Platform in the Yellow River Estuary, and the pipeline is an abandoned nakedly pipeline which was used to transmit oil. And after the pipeline was removed, a repetitive measurement was carried out on September 5, 2006 in this area. Based on the test results, a series of interesting phenomena were found.. （1）Because of the pipeline＇s existence, the two sides of the pipelines hydrodynamic forces changed, and made seabed soils＇ strength changed; （2）the pipeline raised up the sea-bed soils strength and when the pipelines are reduced, the strength and the uniformity are reduced; （3）after the storm tide, the strength of the sea-bed soils and uniformity is increased. The findings serve as simulation tests about the soils＇ changes under the pipeline-wave conditions.

关 键 词：管线 海床土 贯入阻力 “麦莎” 

分 类 号：TV41[水利工程—水工结构工程]