土工基础

土工基础 ›› 2026, Vol. 40 ›› Issue (4): 692-696.

• 专题论述 • 上一篇    下一篇

环胶州湾海相软土工程地质特性与空间分布

李 鹏1,2,3，王 彬1,3，孙 良1,3，杨俊杰2,4，吴 刚1,3   

  1. (1.青岛市勘察测绘研究院，山东青岛 266032；2.中国海洋大学 环境科学与工程学院，山东青岛 266100；
    3.青岛市智慧（绿色）岩土技术创新中心，山东青岛 266032；4.中国海洋大学 海洋环境与生态教育部重点实验室，山东青岛 266100）
  • 收稿日期:2024-06-03 修回日期:2024-08-01 出版日期:2026-08-30 发布日期:2026-08-26
  • 通讯作者: 杨俊杰（1962-），男，博士，教授，研究方向为环境岩土工程。
  • 作者简介:李鹏（1977-），男，博士研究生，正高级工程师，研究方向为岩土工程。
  • 基金资助:
    国家自然科学基金面上项目(52078474、51779235)

Engineering Geological Properties and Spatial Distribution of Soft Marine Soil around Jiaozhou Bay

LI Peng1,2,3, WANG Bin1,3, SUN Liang1,3, YANG Junjie2,4， WU Gang1,3   

  1. (1.Qingdao Surveying & Mapping Institute, Qingdao 266032;
    2.College of Environmental Science and engineering, Ocean University of China, Qingdao 266100;
    3.Qingdao Innovation Center of Smart (Green) Geotechnical Technology, Qingdao 266032;
    4.Key Laboratory of Marine Environment and Ecology of the Ministry of Education, Ocean University of China, Qingdao 266100)
  • Received:2024-06-03 Revised:2024-08-01 Online:2026-08-30 Published:2026-08-26

摘要： 胶州湾由构造断陷及全新世海侵形成，以淤泥质粉质黏土为主的海相软土在环胶州湾地区广泛分布。基于环胶州湾陆域工程地质数据资料，对标志性软土层的物理力学性质指标进行了统计分析，对环胶州湾地区及上合示范核心区、红岛经济区的软土空间分布规律进行了总结。结果表明，软土主要分布于黄岛区的安子码头、前湾港、保税区、红石崖北部，胶州市的九龙东南部，城阳区的河套及上马南部、棘洪滩南部，李沧区的白泥地公园，市北区的欢乐滨海城、大港等。软土厚度一般自远海端向近海端逐渐增大，最大厚度约14.5 m。环胶州湾软土的含水率20.0~99.5%、土粒比重2.68~2.77、天然密度1.44~2.04 g·cm-3、饱和度72.7~100%、孔隙比0.650~2.591、塑限10.0~42.2%、液限18.0~72.5%、塑性指数4.0~44.8、液性指数0.75~3.72，压缩系数0.20~2.52 MPa-1、压缩模量0.90~6.50 MPa、黏聚力1.0~19.9 kPa、内摩擦角1.0~19.0°。

关键词: 胶州湾, 海相软土, 工程地质特性, 空间分布

Abstract: Jiaozhou Bay was formed through tectonic subsidence and Holocene marine transgression, resulting in the widespread distribution of soft marine clay—dominated by silty clayey mud—around the bay. Based on a comprehensive regional engineering-geological database, this study statistically analyzes the physical and mechanical properties of the representative soft-soil layers and summarizes their spatial distribution across the Jiaozhou Bay region, including the SCO Demonstration Zone and the Hongdao Economic Zone. The results indicate that soft soils are mainly distributed in Anzi Wharf, Qianwan Port, the Bonded Zone, and northern Hongshiya in Huangdao District; southeastern Jiulong in Jiaozhou City; Hetao, southern Shangma, and southern Jihongtan in Chengyang District; Bainidi Park in Licang District; and Huanle Binhaicheng and Dagang in Shibei District. Soft-soil thickness generally increases landward from the offshore margin, reaching a maximum of approximately 14.5 m. The soft soils exhibit water content of 20.0~99.5%, specific gravity of 2.68~2.77, natural density of 1.44~2.04 g/cm3, degree of saturation of 72.7~109.7%, void ratio of 0.650~2.591, plastic limit of 10.0~42.2%, liquid limit of 18.0~72.5%, plasticity index of 4.0~44.8, and liquidity index of 0.75~3.72. The compression index, compression modulus, cohesion, and internal friction angle range from 0.20~2.52 MPa-1, 0.90~6.50 MPa, 1.0~19.9 kPa, and 1.0~19.0°, respectively.

Key words: Jiaozhou Bay, Soft Marine Soil, Engineering Geological Property, Spatial Distribution

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