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J. Cent. South Univ. (2016) 23: 2669-2675 DOI: 10.1007/s11771-016-3328-1 Mass ratio design based on compaction properties of backfill materials LI Meng(李猛), ZHANG Ji-xiong(张吉雄), HUANG Peng(黄鹏), GAO... on the basis of the basic principle of solid backfill mining. In addition, the density-stress relationship of backfill materials under compaction was obtained for five types of materials to derive......
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Influence of Compaction Pressure on the Accelerated Carbonation of Calcium Hydroxide房延凤,常钧,CAO MingliSchool of Civil Engineering,Dalian University of Technology摘 要:Mineral carbonation using waste cement is a promising method to solve the problems caused by CO2 emission and waste cement. Compaction pressure is an important parameter for mineral......
; 文章编号:1672-7207(2017)02-0465-08 Meso-mechanism of compaction grouting in soil based on particle flow method ZHOU Zilong1, ZHAO Yunlong1, CHEN Zhao2, DU Xueming1, WU Zhibo1 (1...: In order to reveal the diffusion law and consolidation effect in high pressure slurry of compaction grouting, the particle flow method was used to analyze the meso-mechanism of grouting in consideration......
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compaction meter value and compactness 从图1可知:压实度随着压实计值(RCMV)增大而增大,通过最小二乘法进行数据拟合后,得到拟合关系式为K=0.073RCMV+92.473,相关系数r=0.71,数据组数n=67,说明压实计值与压实度之间具备一定的正线性相关关系.在目前国外的技术规程当中,除瑞典标准要求相关系数r不低于0.6之外,其他国家普遍要求不低于0.7...应找到相应的区域编号,表5展示了部分压实不均匀区域的位置信息. 表5 纵向条带中部分压实不均匀区域的位置信息 Table 5 Position information of some regions with nonuniform compaction in longitudinal strips 接下来进行条带均匀性评价.首先计算各纵向条带的一致性统计量k,然后在95%置信水平下,查阅F分布表......
Preparation of doping titania antibacterial powder by ultrasonic spray pyrolysis WEI Shun-wen(韦顺文)1, PENG Bing(彭 兵)1, CHAI Li-yuan(柴立元)1, LIU Yun-chao(刘云超)1, LI Zhu-ying(李竹英)2 1. School... of the powder can be controlled by adjusting the concentration of solution. The experimental approach indicates that the size and the value of standard deviation of particle size increase from 210 nm......
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Preparation of AZ91 alloy by powder metallurgy method JIANG Hai(姜 海)1, HE Xin-bo(何新波)1, QU Xuan-hui(曲选辉)1,2, I. S. HUMAIL2 , WANG Xi-tao(王西涛)2 1. School of Materials Science and Engineering... Received 28 July 2006; accepted 15 September 2006 Abstract: Magnesium alloy AZ91 was prepared by powder metallurgy method, and the effect of sintering temperature on the densities and microstructures......