基于莱州湾浅层海床土工特性的方形人工鱼礁场址适宜性研究  

Study on Site Suitability of Square Artificial Reef Based on Geotechnical Characteristics of Shallow Seabed in Laizhou Bay

作　　者：李安龙[1,2] 耿天成 徐兴雨 郭席君 王盼盼 徐继尚[1,2] Li Anlong;Geng Tiancheng;Xu Xingyu;Guo Xijun;Wang Panpan;Xu Jishang(The Key Laboratory of Submarine Geosciences and Prospecting Techniques,Ministry of Education,Ocean University of China,Qingdao 266100,China;College of Marine Geosciences,Ocean University of China,Qingdao 266100,China;Shengli Oilfield Technology Inspection Center,SINOPEC,Dongying 257000,China;Southwest Branch of China Construction Second Engineering Bureau,Yueyang 414000,China)

机构地区：[1]中国海洋大学海底科学与探测技术教育部重点实验室,山东青岛266100 [2]中国海洋大学海洋地球科学学院,山东青岛266100 [3]中国石油化工股份有限公司胜利油田分公司技术检测中心,山东东营257000 [4]中国建筑第二工程局西南分公司,湖南岳阳414000

出　　处：《中国海洋大学学报（自然科学版）》2023年第3期52-62,共11页Periodical of Ocean University of China

基　　金：国家自然科学基金项目(41976198);国家重点研究发展计划项目(2017YFE0133500)资助。

摘　　要：浅层海床的土工特性对方形人工鱼礁工程的长期有效使用起着决定作用。本文基于莱州湾36个10 m以浅的工程钻孔物理力学性质指标和原位标贯击数、70个站位表层箱式样品的原位土体含水量、密度、微型十字板强度、贯入阻力和压缩模量试验数据和352个站位样品的粒度数据以及180 km的3.5 kHz浅地层剖面数据,以典型方形混凝土人工鱼礁作基础,计算了各站位的沉降量、地基承载力,判别了地基土的液化可能性,探讨了三种单因素和多因素综合评价的适宜性分区原则,并依据分区原则,将莱州湾分为四个适宜性分区,即适宜区、一般适宜区、一般不适宜区和极不适宜区。水深8 m以浅的西南至南部范围和莱州浅滩投放方形人工鱼礁是适宜的,黄河大嘴外水深10 m以浅的区域和莱州湾中部水深大于8 m的大部分海底不适宜投放方形人工鱼礁。The geotechnical characteristics of shallow seabed play a important role in the long-term effective use of square artificial reef engineering. Based on the physical and mechanical property indexes and in-situ SPT of 36 engineering boreholes with a depth of more than 10 m in Laizhou Bay, the in-situ soil moisture content, density, micro vane strength, penetration resistance and compression modulus test data of surface box samples at 70 stations, the particle size data of 352 station samples and the 3.5 kHz shallow profile data of 180 km, and based on the typical square concrete artificial reef, the settlement of each station is calculated in this paper Based on the foundation bearing capacity, the liquefaction possibility of foundation soil is distinguished, and the suitability zoning principles of three single factor and multi factor comprehensive evaluation are discussed. According to the zoning principles, Laizhou Bay is divided into four suitability zoning, namely, suitable area, general suitable area, general unsuitable area and extremely unsuitable area. Square artificial reefs are suitable for the southwest to south areas with a water depth of less than 8 m and Laizhou shoal. Square artificial reefs are not suitable for the areas with a water depth of less than 10 m outside the mouth of the Yellow River and most of the seabed with a water depth of more than 8 m in the middle of Laizhou Bay.

关 键 词：莱州湾 浅层海床 土工特性 方形人工鱼礁 适宜性分区 

分 类 号：P75[天文地球—海洋科学]