A fundamental study on in-situ stress determination by using core samples in ocean deep drillings

大洋深钻岩心样品地应力测定的基础研究

• 批准号: 19540453
• 负责人: LIN Weiren
• 金额: $ 2.83万
• 依托单位: Japan Agency for Marine-Earth Science and Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19540453/
• 关键词: 応力計測; 科学掘削; 断層掘削; コア試料; 非弾性ひずみ回復; 孔内検層; ブレークアウト; 非弾性ひずみ回復法

To determine in-situ stress states in scientific active-fault deep drilling projects and to develop stress measurement techniques in deep ocean drillings, we determined the stress orientation distribution in the southwest Japan subduction zone in an ocean drilling project "Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE)" and found a stress anomaly cased by fault rupturing during the 1999 Taiwan Chi-Chi earthquake in "Taiwan Chelungpu-fault Drilling Project (TCDP)". At the same time, we successfully applied a core-based method called anelastic strain recovery (ASR) method to deep ocean drillings.

To determine in-situ stress states in scientific active-fault deep drilling projects and to develop stress measurement techniques in deep ocean drillings, we determined the stress orientation distribution in the southwest Japan subduction zone in an ocean drilling project "Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE)" and found a stress anomaly cased by fault rupturing during the 1999 Taiwan Chi-Chi earthquake in "Taiwan Chelungpu过失钻井项目（TCDP）”。同时，我们成功地将一种基于核心的方法应用于深海钻孔中。

项目成果

Current stress measurement in scientific drilling, Rapid Response Drilling of Faults: Past

当前科学钻井中的应力测量，断层快速响应钻井：过去

• 发表时间: 2008
• 作者: Lin;Weiren
• 通讯作者: Weiren

Localized rotations of principal stress around faults and fractures from borehole breakouts in the hole B of Taiwan Chelungpu-fault Drilling Project (TCDP)

台湾车笼埔断层钻探工程（TCDP）B孔钻孔破裂引起的断层和裂缝周围主应力的局部旋转

• 发表时间: 2008
• 作者: Lin;Weiren;En-Chao Yeh;Jih-Hao Hung;Bezalel Haimson;Tetsuro Hirono
• 通讯作者: Tetsuro Hirono

Anisotropy of strength and deformability of Inada granite under uniaxial tension

单轴拉伸下稻田花岗岩强度和变形能力的各向异性

• 发表时间: 2008
• 期刊: Chinese Journal of Rock Mechanics and Engineering Vol.27,No.12
• 作者: LIN;Weiren;TAKAHASHI Manabu
• 通讯作者: TAKAHASHI Manabu

A preliminary result of stress orientation obtained from drilling induced tensile fractures and borehole breakouts at Site C0009, Expedition 319

从第 319 次勘探 C0009 场地钻井引起的拉伸裂缝和井眼破裂获得的应力方向的初步结果

• 发表时间: 2009
• 作者: Lin Weiren;et al;林為人
• 通讯作者: 林為人

非弾性ひずみ測定とブレークアウト解析による応力計測の一例

使用非弹性应变测量和突破分析进行应力测量的示例

• 发表时间: 2007
• 作者: 谷川亘;林為人;YEH En-Chao
• 通讯作者: YEH En-Chao