hydro-mechanical process of LUSI mud volcano

LUSI泥火山流体力学过程

• 批准号: 20710138
• 负责人: TANIKAWA Wataru
• 金额: $ 2.75万
• 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 Young Scientists (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20710138/
• 关键词: 液状化; 泥火山; 透水係数; レオロジー; LUSI; 高間隙水圧; 地震動

Hydraulic properties of sedimentary rocks in East Java where the disaster of mud eruption (LUSI) was occurred were measured by laboratory tests. Temporal and Spatial pore pressure distribution was evaluated by numerical model based on laboratory results. The numerical results showed that abnormally high pore pressure would have been generated at a clay rich formation that is the origin of erupted mud, and it is mainly caused by the formation of very low permeable layer and rapid sedimentation rate. Rheology measurement showed that viscosity of mud was decreased with increasing of liquid fraction and strain. Our result indicates that overpressure generation and fluid injection to the clay rich formation, both of which induce the reduction of sediment, is one of reasons for LUSI mud eruption.

通过实验室试验，对发生泥质喷发灾害（LUSI）的东爪哇省沉积岩的水力学性质进行了测定。在室内试验的基础上，利用数值模型计算了孔隙水压力的时空分布。数值结果表明，在泥质喷发源的富粘土地层中会产生异常高的孔隙水压力，其主要原因是形成了极低渗透层和快速沉积速率。流变学测试表明，泥浆粘度随含液率和应变的增加而降低。研究结果表明，超压的产生和流体向富粘土层的注入，导致沉积物的减少，是鲁寺泥质喷发的原因之一。

项目成果

Hydraulic and mechanical properties and dynamic processes in a fault zone from core samples recovered from Hole B of the Taiwan Chelungpu-fault Drilling Project

台湾车笼埔断层钻探项目 B 孔岩心样本断层带的水力和力学特性及动态过程

• 发表时间: 2010
• 作者: Tanikawa;W.;Wataru Tanikawa
• 通讯作者: Wataru Tanikawa

透水係数の測定時間短縮を目的としたトランジェント・パルス法の改良と考察

瞬态脉冲法缩短水力传导率测量时间的改进与思考

• 发表时间: 2008
• 期刊: 応用地質 49
• 作者: Tanikawa;W;谷川亘
• 通讯作者: 谷川亘

Hydraulic and mechanical properties and dynamic processes in a fault zone from core samples recovered from Hole B of the Taiwan Chelungpu-fault Drilling Project.

台湾车笼埔断层钻探项目 B 孔岩心样本中断层带的水力和力学特性及动态过程。

• 发表时间: 2010
• 作者: Tanikawa;W.
• 通讯作者: W.

東ジャワ島ガス田の泥水噴出災害地域における間隙水圧分布の推定

东爪哇气田泥水喷发灾区孔隙水压力分布估算

• 发表时间: 2008
• 作者: Tanikawa;W;谷川亘
• 通讯作者: 谷川亘

Fluid transport pmperties and estimation of overpressure at the Lusi mud volcano, East Java Basin

东爪哇盆地卢西泥火山的流体输送特性和超压估计

• 发表时间: 2009
• 作者: Tanikawa;W
• 通讯作者: W