重阳节英语怎么说
英文字幕Analysis of the influence of gradation on the strength of a cemented filling body and the
星期日的英文
cementation strength model 期刊名称： Integrated Ferroelectrics
begin的过去式作者： Dengpan Qiao,Weihua Cheng,Jincheng Xie,Jun Wang,Jiashun Peng
长大成人2年份： 2019年
英文名词典
boast期号： 第1期
关键词： Grading;cementation strength;curve fitting;waste filling;cementation strength modelpetrus
摘要：Backfill mining can effectively improve the environment and protect resources. In the filling mining method, the gradation of filling aggregate is the most important aspect. The filling gradation of waste rock + wind sand and waste rock + river sand in the No. 2 mining area of the Jinchuan company was quantitatively described by the fractal equation of filling gradation. The effect of gradation on bonding strength was studied through a laboratory bonding strength test. The results show that the fractal dimension of filling aggregate gradation has a quadratic function relationship with the bonding st闪电侠第一季>imedeen
rength, and there is an optimal extreme value of the bonding strength. The optimal cement strength can be quantitatively calculated by regression analysis, which provides guidance and a basis for the grading design of filling aggregate.
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