摘要
日本南极穹隆富士观测站,继1993年钻进深度112m的导孔和下套管之后,从1995年起用2年时间实施正式深层取心钻进,于1996年12月钻进深度达到2503.52m,超过了2500m的设计深度。正式钻进中的取心钻进总次数1369次,冰屑回收作业837次,平均一次取心深度1.75m,平均一日取心钻进深度8.21m。本文介绍了现场使用的钻进系统概要、钻进方法以及各种事故对策,同时还提出了今后研究课题。
In 1995, Deep hole core drilling was begin to carry out at an observing station of Japan in the South Pole and reached to a depth of 2503. 51 m at the end of 1996 which exceeds the design depth of 2500 m. In this paper, the author describes in detail the drilling system and drilling method used, as well as the ways to deal with various accidents happened. Some problems to be studied and solved are also posed.
出处
《地质装备》
2001年第2期19-25,共7页
Equipment for Geotechnical Engineering
