摘要
为研究不同含水率的条件下异位发酵床垫料:抗剪强度、黏聚力、内摩擦系数、压缩载荷的变化规律。本研究采用土壤力学试验方法,测定垫料五种不同含水率的相关参数。结果表明:当垫料含水率为29.22%~36.13%时,抗剪强度、内摩擦角系数会随着含水率的增大而增大;当含水率为45.55%~61.11%时,抗剪强度、内摩擦角系数会随着含水率的增大而减小。黏聚力不会因含水率的改变而出现明显变化;垫料的压缩载荷随加载时间增大而增大,递增幅度逐渐增大。
To study the change law of shear strength,cohesiveness,internal friction coefficient and compression load of ectopic fermentation mattress under different moisture content,the soil mechanics test method was used to determine the relevant parameters of five different water content of cushion.The results show that the shear strength and the angle coefficient of internal friction increase with the rise of the water content when the water content of the cushion is 29.22%~36.13%.When the moisture content is 45.55%~61.11%,the shear strength and the angle coefficient of internal friction decrease with the increase of moisture content.The cohesiveness does not change obviously with the change of water content.The compression load of cushion increases with the increase of loading time,and the increasing amplitude rises gradually.
作者
叶鼎承
陶志影
黄娥慧
何金成
Ye Dingcheng;Tao Zhiying;Huang Ehui;He Jincheng(Institute of Animal Husbandry and Veterinary Science,Fujian Academy of Agricultural Sciences,Fuzhou 350013;College of Mechanical and Electrical Engineering,Fujian Agriculture and Forestry University,Fuzhou 350002)
出处
《中国农学通报》
2021年第5期130-136,共7页
Chinese Agricultural Science Bulletin
基金
福建省属公益类科研院所基本科研专项“异位微生物发酵床关键技术研究与应用”(2018R1023-10)
福建省农业科学院一般项目“猪场污水多级分离及UASB运行参数优化验证”(A2018-13)。
关键词
异位发酵床
垫料
抗剪强度
黏聚力
内摩擦系数
压缩载荷
ectopic fermentation bed
bedding
shear strength
cohesiveness
coefficient of internal friction
the compression load
