Abstract:Sampling in rivers and lakes is an essential work in environmental science research and resources exploration. This study provides a new drilling tool for water sampling—hydraulic piston corer. Compared with the traditional piston corer, it has the characteristics of high sampling efficiency and stratum adaptability. This article mainly introduces the design guideline and working principle of the corer.

Abstract:Compared to the vibrating sampling on the ground, there are problems of seawater damping and seawater vibrating during seabed vibrating drilling. Simplified mechanical model and modified coefficients were taken into account of the specific conditions in the seabed, the effects on vibrating penetration by various vibrating parameters of seabed vibrating sampler had been discussed in this paper. A seabed vibrating sampler suitable for seabed soil at 500 m depth had been designed according to the design theory discussed in this paper.

Abstract:Being dead against the specific conditions concerning seabed vibro sampling, a self developed coring tool suitable for seabed vibro sampling, SSZ-1 vibrating double coring barrel with double spring, is introduced. Its structural principles and adaptability to seabed sampling are analyzed.

Abstract:分析了海底取样过程的"桩效应”问题,阐述了振动取样器贯入沉积物的原理,归纳了取样器的选用原则,并就完善海底取样技术提出了建议.

Abstract:YHZ-1 remote controlled vibro seabed sampling drill is made up of the onboard equipment and the undersea drill with the computer technology and modern electronic measuring and control technology. The description is made of the structural principle, features, technical specifications and the electrical system.

Abstract:Seabed sampling has important station in ocean exploration and exploitation, and it also is an important aspect of exploration engineerings application. As the first part of the subject on seabed sampling, the paper discusses foreign seabed samplers developing state and operating mechanism, starting with describing the importance of seabed sampling and the classification of sampler.