海洋冲击伸缩绳索取样器的研制与应用

Development and Application of Marine Impact Telescopic Sampler

摘要:

海洋沉积物地层主要由淤泥、软土、半固结泥岩、砂岩等组成，沉积物地层钻探取样是海洋工程和地质调查的重要组成部分。常规回转取样器取样，极易破坏样品的原状而且取样率较低；静压取样器取样，在砂岩、半固结泥岩等较硬地层取样率较低。针对上述问题，研制了一种冲击伸缩绳索取样器，该取样器结合了静压取样器和锤击取样器的特点，实现对海底以沉积物为主地层的高保真取样。

Abstract:

Marine sediment stratum is mainly composed of silt, soft soil, semi-concreted mudstone and sandstone, the sediment stratum sampling is an important part of marine engineering and geological survey. The original state of sample is easy to be disturbed by the use of conventional rotary sampler with low sampling rate; while by static pressure sampler, the sampling rate is not ideal in sandstone and semi-concreted mudstone. According to the above situation, combining the characteristics of static pressure sampler and hammering sampler, an impact telescopic wire-line coring sampler was developed to realize truly-preserving sampling in submarine sedimentary bed mainly consisting of sediments.