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7篇 您的检索式:作者名="Warren RAJ"
    题名 作者 年代 出处 被引量
1Inflatable rock bolt bond strength versus rock mass rating (RMR): A comparative analysis of pull-out testing data from underground mines in Nevada显示文摘The purpose of this paper is to establish confidence in anticipated minimum bond strength for inflatable rock bolts by comparing the bond strength to variable geotechnical conditions using the rock mass rating(RMR) system. To investigate a correlation between these parameters,the minimum bond strength of pull-out tested inflatable rock bolts was compared to the RMR of the rock in which these bolts were placed. Bond strength vs. RMR plots indicate that expected minimum bond strength is positively correlated with RMR; however,the correlation is not strong. Cumulative percent graphs indicate that 97% of pull-out tests result in a minimum bond strength of 3.3 and 1.7 ton/m in RMR P 45 and <45,respectively.Although lower bond strengths are more commonly encountered in low RMR ground,high bond strengths are possible as well,yielding higher variability in bond strengths in low RMR ground. Bond strength of friction bolts relies on contact between the rock bolt and drill hole. Experience in Nevada indicates that RMR is known to affect both the quality and consistency of drill holes which likely affects bond strength. Drilling and bolting in low RMR ground is more sensitive to drilling and bolting practices,and strategies for maximizing bond strength in these conditions are discussed.Barnard Chase Kallu Raj R. Warren Sean Thareja Rahul 2016International Journal of Mining Science and Technology2016,26,1:2
2Unilateral Cleft Lip Repair显示文摘Raj M Vyas Stephen M Warren 2014Clin Plastic Surg2014,41,2:1
3Precise excision of the cellulose binding domains from two Cellulomonas fitni cellulases by a homologous protease and the effect on catalysis显示文摘 Warren RAJ Miller RC 1988J Biol Chem1988,263,10:1
4Glycosynthases: mutant glycosidases for oligosaccharide synthesis 显示文摘Mackenzie LF Wang Q Warren RAJ 1998J Am Chem Soc1998,120,:1
5Thioglycoligases: mutant glycosidases for thioglycoside synthesis显示文摘Jahn M Marles J Warren RAJ 2003Angew Chem Int Ed Engl2003,42,:1
6Glycosynthases: mutant glycosidases for oligosaccharide synthesis显示文摘Mackenzie LF Wang QP Warren RAJ 1998Journal of the American Chemistry Society1998,120,22:1
7A scheme for designating enzymes that hydrolyse the polysaccharides in the cell walls of plants 显示文摘Henrissat B Teeri T T Warren RAJ 1998FEBS Lett1998,425,:1
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