Development on long term borehole monitoring system for earthquake and geodetic research

Author

Kyo, Masanori ; Namba, Yuto ; Saruhashi, Tomokazu ; Araki, Eiichiro ; Kitada, Kazuya ; Kimura, Tomohiro ; Fuluton, Patrick

Author_Institution

Center for Deep Earth Exploration, Japan Agency for Marine Earth Sci. & Technol., Yokohama, Japan

fYear

2014

fDate

7-10 April 2014

Firstpage

1

Lastpage

6

Abstract

The deep sea scientific riser drilling vessel capable of riser drilling at 2,500 meter water depth, CHIKYU started its scientific operation from 2007, as the first riser drilling platform of the Integrated Ocean Drilling Program, to contribute such important scientific program as the Nankai Trough Seismogenic Zone Experiment and the Japan Trench Fast Drilling. Any of these expeditions involve technological and operational difficulties related to strong current, high wave, strong wind, deep water, and deep penetration. This paper describes the development of long term borehole monitoring system from view points of technical difficulties on deploying it at deep water, deep hole, and strong current.

Keywords

drilling (geotechnical); earthquakes; geodesy; geophysical techniques; ocean waves; seismology; wind; AD 2007; CHIKYU; Integrated Ocean Drilling Program; Japan Trench Fast Drilling; Nankai Trough Seismogenic Zone Experiment; deep hole; deep penetration; deep sea scientific riser drilling vessel; deep water; earthquake research; expedition operational difficulty; expedition technological difficulty; geodetic research; high wave; long term borehole monitoring system development; riser drilling; riser drilling platform; scientific operation; scientific program; strong current; strong wind; water depth; Earth; Earthquakes; Observatories; Oceans; Sensors; Temperature measurement; Tsunami; borehole observatory; deep water; seismogenic zone; strong current;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS 2014 - TAIPEI

Conference_Location

Taipei

Print_ISBN

978-1-4799-3645-8

Type

conf

DOI

10.1109/OCEANS-TAIPEI.2014.6964405

Filename

6964405