海洋数字式多功能静力触探探头的开发与应用

Development and application of marine digital multi-function CPT cone

针对我国海洋资源开发利用不断发展的需求,研制了一种最大适水深度达2000m的海洋数字式多功能静力触探探头,从探头的机械结构、防腐、耐压密封、数据校正等方面进行了详细的介绍,在常规三桥探头的基础上扩充了探头倾斜、温度、土体摄像、电阻率等多项功能,并在探头内部集成了数据采集电路,实现了各通道传感器模拟输出的数字化转换,分析了数字式探头的优缺点。近两年来,自行研制的海洋数字式多功能静力触探探头在多个平台上获得成功应用,验证了探头的耐压密封性能、静动载性能以及真实性、可靠性。

In order to meet the demand of the marine resources exploitation,a digital marine multifunction CPT cone is developed,which could work at the depth of 2000 m underwater. The mechanical structure,anti-corrosion,water resist and data correction are introduced detailed in the paper. Based on the conventional three-bridged CPT cone,the multi-function including inclination, temperature, soil photography,electrical resistivity,etc. and data acquisition circuit are integrated; the analog output of every sensor could be converted to digital signal; its advantages and disadvantages are analysed. The cone is applied in several projects and it is proved successful in water resist,static and dynamic conditions,the data authenticity and reliability.