Overview of the Wenchuan Fault Scientific Drilling Project in China

Dohyun Park

doi:10.32390/ksmer.2020.57.5.483

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2020 Vol.57, Issue 5 Preview Page Next Page

Review

Overview of the Wenchuan Fault Scientific Drilling Project in China 중국 원촨단층 과학시추 프로젝트 소개

31 October 2020. pp. 483-494

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Abstract

After the Wenchuan Ms 8.0 earthquake in May 2008, the Wenchuan Fault Scientific Drilling (WFSD) project was conducted in the Longmenshan fault zone, which is located in the eastern margin of the Tibetan Plateau. Six boreholes were drilled along the co-seismic surface ruptures of the Yingxiu–Beichuan and Guanxian–Anxian faults, which are the main faults in the Longmenshan fault zone. The WFSD project aimed to understand the mineral composition, geological structure, and tectonic settings of the fault zone at deep depths, and the rupture processes of the seismogenic faults during the Wenchuan earthquake. To achieve these aims, the WFSD project observed and analyzed the physical and chemical behaviors of the faults and their energy states. This paper introduces the research activities to explore the key scientific problems arising from the Wenchuan earthquake and important research results from the scientific drilling.

Keywords

Wenchuan fault scientific drilling

Wenchuan earthquake

Longmenshan fault zone

Earthquake mechanism

2008년 5월 규모 8.0의 원촨지진이 발생한 이후 티베트 고원 동쪽 끝에 위치하는 룽먼산 단층대를 대상으로 원촨단층 과학시추 프로젝트가 수행되었다. 룽먼산 단층대의 주단층들인 잉슈-베이촨 단층과 관시엔-안시엔 단층의 지표파열대를 따라 총 6개의 시추공이 굴착되었고, 깊은 심도에서 단층대의 광물조성, 지질구조, 지체구조 파악 및 원촨지진이 발생하는 동안 지표파열 과정의 규명을 목적으로 프로젝트가 수행되었다. 이를 위해 단층들의 물리화학적 거동 및 에너지 상태에 대한 다양한 관측과 분석이 수행되었다. 본 고에서는 원촨지진에서 제기된 주요 과학적 문제들과 이를 해결하기 위해 원촨단층 과학시추 프로젝트에서 수행한 연구내용, 과학시추로부터 얻은 중요 연구성과들을 소개하였다.

키워드

원촨단층 과학시추

원촨지진

룽먼산 단층대

지진 메커니즘

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Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society of Mineral and Energy Resources Engineers
Journal Title(Ko) :한국자원공학회지
Volume : 57
No :5
Pages :483-494
Received Date : 2020-07-03
Revised Date : 2020-08-13
Accepted Date : 2020-08-25
DOI :https://doi.org/10.32390/ksmer.2020.57.5.483

Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

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