生活垃圾腐殖土土工特性室内试验研究  

Laboratory study on the geotechnical properties of humus soil from municipal solid waste landfill

作　　者：梁冰[1] 杜月林 张文伟 秦志发 刘磊[2,3,4,7] 陈亿军 LIANG Bing;DU Yuelin;ZHANG Wenwei;QIN Zhifa;LIU Lei;CHEN Yijun(School of Mechanics and Engineering,Liaoning Technical University,Fuxin 123000,China;State Key Laboratory of Geomechanics and Geotechnical Engineering,Institute of Rock and Soil Mechanics,Chinese Academy of Sciences,Wuhan 430071,China;The Hong Kong Polytechnic University Joint Laboratory on Solid Waste Science,Institute of Rock and Soil Mechanics Chinese Academy of Sciences,Wuhan 430071,China;Hubei Province Key Laboratory of Contaminated Sludge and Soil Science and Engineering,Institute of Rock and Soil Mechanics Chinese Academy of Sciences,Wuhan 430071,China;Wuhan Domestic Waste Classification Promotion Center,Wuhan 430012,China;School of Civil Engineering,Liaoning Technical University,Fuxin 123000,China;Wuhan CAS-ITRI Solid Waste Resources Company Limited,Wuhan 430070,China)

机构地区：[1]辽宁工程技术大学力学与工程学院,辽宁阜新123000 [2]中国科学院武汉岩土力学研究所,岩土力学与工程国家重点实验室,湖北武汉430071 [3]中国科学院武汉岩土力学研究所,香港理工大学固体废弃物科学联合实验室,湖北武汉430071 [4]中国科学院武汉岩土力学研究所,污染泥土科学与工程湖北省重点实验室,湖北武汉430071 [5]武汉市生活垃圾分类促进中心,湖北武汉430012 [6]辽宁工程技术大学土木工程学院,辽宁阜新123000 [7]武汉中科固废资源产业技术研究院有限公司,湖北武汉430070

出　　处：《辽宁工程技术大学学报（自然科学版）》2024年第1期1-9,共9页Journal of Liaoning Technical University (Natural Science)

基　　金：国家自然科学基金项目(52074143,51874166);湖北省自然科学基金杰出青年基金项目(2021CFA096);辽宁工程技术大学学科创新团队资助项目(LNTU20TD-11)。

摘　　要：为探究垃圾填埋场内腐殖土的土工特性随填埋深度的变化规律,以陈旧型垃圾填埋场内不同填埋深度的腐殖土为研究对象,采用室内试验和理论分析相结合的方法研究腐殖土的理化性质和力学性质。研究结果表明:随着填埋深度的增加,陈腐垃圾中腐殖土的占比以及颗粒级配、有机质含量、比重和浸出液pH值等理化性质均发生变化,进而影响腐殖土的抗压强度、抗剪强度、饱和渗透性和压缩性等力学性质。研究结果为腐殖土的资源化利用提供了理论参考。In order to explore the variation law of geotechnical properties of landfill humus soil with landfill depth,taking humus soil with different landfill depths in old landfills as the research object,the method of combining laboratory test and theoretical analysis was used to study the physicochemical properties and the mechanical properties of humus soil.The results show that with the increase in landfill depth,the proportion of humus soil in municipal solid waste and the physicochemical properties of humus soil such as particle size distribution,organic matter content,specific gravity and pH value of the leaching solution all change,which further affects the mechanical properties such as compressive strength,shear strength,saturated permeability and compressibility.These conclusions provide theoretical reference for the resource utilization of humus soil.

关 键 词：腐殖土 生活垃圾填埋场 理化性质 力学性质 填埋深度 

分 类 号：X705[环境科学与工程—环境工程]