海洋物探方法在海上风电场勘察中的应用  

Application of marine geophysical exploration method in offshore wind farm survey

作　　者：刘彦华 杨晓军 袁超 陈辉[2] Liu Yanhua;Yang Xiaojun;Yuan Chao;Chen Hui(Institute of Hydrogeological and Marine Geological Exploration,Jiangsu Province,Huai'an 223400,Jiangsu,China;National Defense Key Research Laboratory of Radioactive Geology and Exploration Technology East China University of Technology,Nanchang 330013,Jiangxi,China)

机构地区：[1]江苏省水文地质海洋地质勘查院,江苏淮安223400 [2]东华理工大学放射性地质与勘探技术国防重点学科实验室,江西南昌330013

出　　处：《地质学刊》2019年第4期619-626,共8页Journal of Geology

基　　金：国家自然科学基金项目“近地表三维复杂介质中瑞雷波传播特性研究”(41274123);国家自然科学青年基金项目“基于区域分解的大地电磁三维快速正反演研究”(41404057)联合资助

摘　　要：海洋物探方法是海洋调查的主要方法,在海上风电地质勘察中得到了广泛的应用。在广东阳江沙扒海上风电场勘察中,通过浅地层剖面结合单道地震,查明了场区覆盖层厚度,绘制了基岩埋深图;采用多波束测深和侧扫声呐,并结合浅地层剖面探测和钻探取样成果查明了海底障碍物分布;通过浅地层剖面,初步查明了研究区浅层气分布范围;将海洋磁法成果绘制成研究区磁场等值线图。根据多波束测深、侧扫声呐、海洋磁法、浅地层剖面和单道地震等海洋物探方法特点,通过广东阳江沙扒海上风电项目,展示了应用海洋物探技术在海上风电勘察领域取得的成果。As the main method of marine investigation,marine geophysical prospecting has been widely used in the geological survey of offshore wind power.When exploring the sea wind farm of Shaba,Yangjiang,Guangdong Province,sub-bottom profile and singlechannel seismic method were combined to reveal the thickness of the field cover and present the bedrock depth map.Multibeam echo sounding,side-scan sonar,sub-bottom profile exploration and drilling sampling results were combined to reveal the submarine obstacle distribution.Sub-bottom profile helped to primarily delineate the distribution range of shallow gas.Marine magnetic result was transformed into the contour map of the magnetic field of the study area.Based on exploring the characteristics of the multibeam echo sounding,side-scan sonar,marine magnetic,sub-bottom profile and single-channel seismic method,and taking the sea wind farm of Shaba,Guangdong Province as an example,this paper presents the achievement of applying marine geophysical exploration method in offshore wind farm survey.

关 键 词：海上风电场 工程勘察 多波束测深 侧扫声呐 海洋磁法 浅地层剖面 单道地震 广东阳江沙扒 

分 类 号：P714.8[天文地球—海洋科学]