The damage mechanics model of the wellbore surrounding rock based on fractal theory

被引：0
|
作者：
Shi, Ruixiang [1 ]
Ai, Chi [1 ]
Zhao, Wanchun [1 ]
Feng, Xiaohan [1 ]
机构：
[1] Northeast Petr Univ, Educ Minist, Key Lab Enhanced Oil & Gas Recovery, Daqing 163318, Heilongjiang, Peoples R China
来源：
APPLIED MATERIALS AND TECHNOLOGIES FOR MODERN MANUFACTURING, PTS 1-4 | 2013年 / 423-426卷
关键词：
Damage Mechanics; Fractal; CBM; Stress Field;
D O I：
10.4028/www.scientfic.net/AMM.423-426.1623
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In order to describe the mechanical characteristics of CBM wellbore surrounding rock more accurately, the article establishes the CBM wellbore surrounding rock mechanics model based on the fractal theory. According to the pores of CBM surrounding rock and the characteristics of mass fractal, people find the macro fracture and micro fracture damage characteristics and build the relationship of any scale coal strength, damage variable and fractal dimension. According to the numerical calculation method of the surrounding rock stress, people find the surrounding rock stress calculation method and the damage distribution model of the pore fractal model and fracture fractal model.
引用
收藏
页码：1623 / 1626
页数：4
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