基于手提钻的深海沉积物长芯取心系统的研制

Xin Zhang, Z. Luan, Jun Yan, Chang’an Chen
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引用次数: 12

摘要

中国科学院海洋研究所研制了一套用于深海沉积物岩心的长芯取心系统。这种新型装置是风钻和重力取样器的混合体。最初设计的采出长度可达30米,水深为3500米。混合覆盖有可变重量约2吨,由核心的长度决定。因此,它可以作为重力采样器部署在第一个0-10米的粘土样品。在被泥浆堵塞后,一个自制的深海“手提钻”将开始推动系统越钻越深。这台自制的深海“手提钻”可以通过2.5kw/100V 1500rpm深水电机,以1循环/min的速度,以0-28kN的力驱动内锤上下。它已经在地面上进行了测试。这种混合式井盖是为R/V Kexue设计的,这是一艘新设计的4000吨科考船,将于2012年9月交付给IOCAS。这种混合覆盖层是这艘新船的主要沉积物岩心系统。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Development of a deep-sea sediment long coring system based on a Jackhammer for R/V Kexue
A long coring system for deep-sea sediment cores has been developed by the Institute of Oceanology, Chinese Academy of Sciences (IOCAS). This novel device is a hybrid of Jackhammer (pneumatic drill) and gravity sampler. The originally designed recovered length is up to 30 m in water depths of 3500 m. The hybrid corer has variable weight around 2 tons, determined by the core length. So it can be deployed as a gravity sampler for the first 0-10 m clays sample. After it been plugged by the mud, a homemade deep-sea “Jackhammer” will start to drive the system go deeper and deeper. This homemade deep-sea “Jackhammer” can drive an internal hammer up and down with 0-28kN force at 1 cycle/min by a 2.5kw/100V 1500rpm deep-water motor. It has been tested on the ground. This hybrid corer is designed for the R/V Kexue, which is a new designed 4000 tons research vessel and will be delivered to IOCAS at September, 2012. This hybrid corer is the main sediment core system for this new ship.
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