Sun Miaojun, Shan Zhigang, Wang Wei, Zhang Shaopeng, Yu Heyu, Cheng Guangwei, Liu Xiaolei
Zhejiang Engineering Research Center of Marine Geotechnical Investigation Technology and Equipment, Zhejiang Huadong Geotechnical Investigation & Design Institute Co., Ltd., Powerchina Huadong Engineering Co., Ltd., Hangzhou 311122, China.
Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering, Ocean University of China, Qingdao 266100, China.
Sensors (Basel). 2024 Aug 28;24(17):5563. doi: 10.3390/s24175563.
In recent years, offshore wind farms have frequently encountered engineering geological disasters such as seabed liquefaction and scouring. Consequently, in situ monitoring has become essential for the safe siting, construction, and operation of these installations. Current technologies are hampered by limitations in single-parameter monitoring and insufficient probe-penetration depth, hindering comprehensive multi-parameter dynamic monitoring of seabed sediments. To address these challenges, we propose a foldable multi-sensor probe and establish an underwater adaptive continuous penetration system capable of concurrently measuring seabed elevation changes and sediment pore water pressure profiles. The reliability of the equipment design is confirmed through static analysis of the frame structure and sealed cabin. Furthermore, laboratory tests validate the stability and accuracy of the electrical and mechanical sensor measurements. Preliminary tests conducted in a harbor environment demonstrate the system's effectiveness.
近年来，海上风电场频繁遭遇海底液化和冲刷等工程地质灾害。因此，现场监测对于这些设施的安全选址、建设和运营变得至关重要。当前技术受到单参数监测的限制以及探头穿透深度不足的阻碍，妨碍了对海底沉积物进行全面的多参数动态监测。为应对这些挑战，我们提出了一种可折叠的多传感器探头，并建立了一个能够同时测量海底高程变化和沉积物孔隙水压力剖面的水下自适应连续穿透系统。通过对框架结构和密封舱的静态分析，证实了设备设计的可靠性。此外，实验室测试验证了电气和机械传感器测量的稳定性和准确性。在港口环境中进行的初步测试证明了该系统的有效性。
