垃圾焚烧底渣的物理力学性质对比试验研究  

Experimental Study on Physical and Mechanical Properties of Waste Incineration Bottom Ashes

作　　者：张宏洲[1] 谭永波[1] 乔艳红[1] ZHANG Hong-zhou;TAN Yong-bo;QIAO Yan-hong(Langfang Normal University,Langfang 065000,China)

机构地区：[1]廊坊师范学院

出　　处：《廊坊师范学院学报（自然科学版）》2019年第3期82-84,92,共4页Journal of Langfang Normal University(Natural Science Edition)

基　　金：河北省高等学校科学研究计划项目“京津冀地区垃圾填埋场人工改性防渗衬垫研究”(ZC2016141);廊坊市科学技术研究与发展计划项目(2016013105);廊坊地区垃圾填埋场边坡土工膜内力研究

摘　　要：底渣为城市生活垃圾焚烧后的产物,具有粗粒土的性质。为研究其物理力学性能,采集京津冀三地底渣样本,进行了颗粒分析、击实及两种压实度直剪试验。试验结果表明,纯底渣为级配不良砂类土,随着压实度的增加,底渣的抗剪性能增加,黏聚力明显增加,内摩擦角有所下降;底渣加入黏土、膨润土调配可作为路基填料及垃圾填埋场防渗层。The bottom ashes is the product of MSW incineration and has the properties of coarse-grained soil. In order to study its physical and mechanical properties, Beijing-Tianjin-Hebei there bottom ashes from Beijing, Tianjin and Hebei Province were collected respectively, and particle analysis, compaction and direct compaction tests of two kinds of compactness were carried out. The test results show that the pure bottom slag is a graded sand soil, with the increase of the degree of compaction, the shear property of the bottom slag increases, the cohesive force increases obviously, and the internal friction angle decreases. The addition of clay and bentonite into the bottom ashe can be used as roadbed filling and landfill impervious layer.

关 键 词：底渣 颗粒粒径分析 压实度 直剪试验 

分 类 号：TU521[建筑科学—建筑技术科学]