Uncertainty Analysis of Rock Strength Based on Mohr-Coulomb Criterion

2020 ◽  
pp. 1423-1430
Author(s):  
Yongfeng Ma ◽  
Rangang Yu
Keyword(s):  
Uncertainty Analysis ◽  
Rock Strength ◽  
Strength Based ◽  
Coulomb Criterion

Investigation on jointed rock strength based on fractal theory

2017 ◽  
Vol 24 (7) ◽  
pp. 1619-1626 ◽  
Author(s):  
Lan-lan Yang ◽  
Wei-ya Xu ◽  
Qing-xiang Meng ◽  
Ru-bin Wang
Keyword(s):  
Rock Strength ◽  
Fractal Theory ◽  
Jointed Rock ◽  
Strength Based

On the Applicability of Gas Drilling Technology in Carboniferous System of Dzungaria Basin

2012 ◽  
Vol 524-527 ◽  
pp. 1490-1495
Author(s):  
Guang Tong Feng ◽  
Rui He Wang ◽  
Hong Shan Zhao ◽  
Zong Gang Wang
Keyword(s):  
Failure Criterion ◽  
Rock Strength ◽  
Confining Pressure ◽  
Horizontal Stress ◽  
Gas Drilling ◽  
Drilling Technology ◽  
Drilling Conditions ◽  
Coulomb Criterion ◽  
Drilling Velocity ◽  
Selection Of

In carboniferous system of Dzungaria basin, the hard igneous rock greatly decreases the drilling velocity. Gas drilling is probably the only technology to overcome this problem. However, the applicability of gas drilling technology should be investigated first. It was studied by analyzing the rock strength both experimentally and theoretically. Stress status of many rock elements near well face was tested which showed a 2D compression status rather than 3D in conventional slurry drilling technology conditions. Therefore there was a horizontal stress for underground rocks, in a similar magnitude with upper burden pressure. The domination of the confining pressure, different with normal conditions, may mislead the selection of the failure criterion. We proved the correction of the Mohr-coulomb criterion as the most suitable failure criterion in gas drilling conditions. As a result, the applicability of gas drilling technology in Carboniferous system of Dzungaria basin was concluded.

scholarly journals Estimation of Size Effects in Rock Strength Based on Specific Energy

2004 ◽  
Vol 120 (10,11) ◽  
pp. 555-559 ◽  
Author(s):  
Katsunori FUKUI ◽  
Seisuke OKUBO
Keyword(s):  
Specific Energy ◽  
Size Effects ◽  
Rock Strength ◽  
Strength Based

Strength-Based Attachment Model of Latina/o College Students' Psychological Adjustment

2008 ◽  
Author(s):  
Patton O. Garriott ◽  
Keisha M. Love ◽  
Kenneth M. Tyler ◽  
Deneia M. Thomas ◽  
Carrie L. Brown
Keyword(s):  
College Students ◽  
Psychological Adjustment ◽  
Strength Based ◽  
Attachment Model

Development of Strength-Based Youth Mentoring: Historical And Theoretical Perspectives, Empirical Results, and Policy Implications

2011 ◽  
Author(s):  
R. Bruce Thompson ◽  
Maryann Corsello ◽  
Samuel McReynolds ◽  
Bernice Conklin-Powers ◽  
Brittany Morley
Keyword(s):  
Policy Implications ◽  
Youth Mentoring ◽  
Empirical Results ◽  
Theoretical Perspectives ◽  
Strength Based
Sign in / Sign up

Export Citation Format

Share Document