Estimating in Situ Stress Magnitudes at Great Depths From Borehole Breakouts-A Laboratory Study

从钻孔破裂处估算大深度原位应力大小——一项实验室研究

• 批准号: 9004688
• 负责人: Bezalel Haimson
• 金额: $ 15.31万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-12-15 至 1993-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9004688&HistoricalAwards=false
• 关键词: Estimating; Situ; Stress; Magnitudes; Great

The PI will establish experimentally in both crystalline and clastic rocks quantitative relations between in situ stress magnitudes and breakout characteristics (such as location, span, depth, persistence) under realistic simulation of field conditions. He will also study the mechanism of breakout formation and growth in common crystalline rock such as granite and basalt, and compare it to the failure process observed in clastic sedimentary rock, and produce analytical model(s) of the breakout-stress relations, calibrated by experimental results.

PI将通过实验在晶体和碎屑岩中建立原位应力大小与破裂特征（如位置、跨度、深度、持续时间）之间的定量关系。他还将研究花岗岩和玄武岩等常见结晶岩的破洞形成和生长机理，并将其与碎屑沉积岩中观察到的破坏过程进行比较，并根据实验结果建立破洞-应力关系的分析模型。