煤矸石在绕城高速公路建设领域中的应用  

Application of Coal Gangue in the Construction of Ring Expressway

作　　者：刘欢 LIU Huan(China Railway 17th Bureau Group Third Engineering Co.,Ltd.,Shijiazhuang 050000,China)

机构地区：[1]中铁十七局集团第三工程有限公司,石家庄050000

出　　处：《价值工程》2023年第30期79-81,共3页Value Engineering

摘　　要：随着国家对土地红线管控力度越来越严格,绕城高速公路建设迅猛发展,路基填筑土方需求越来越大,土方质量及数量制约着高速公路的发展;然而河南许昌市属于矿产开发大省,废弃的煤矸石约300万方,每年以100万方数量递增,下雨后煤矸石对周边土壤污染严重,且占用大面积的土地存放,急需要处理。经试验检测发现,煤矸石经存放3年以后性能基本稳定,耐崩解系数达到96%,硫化铁含量为1%,CBR值为25%,基本能满足路基填筑性能要求,变废为宝,解决绕城高速土源问题,节约用地,取得了较好的社会效益。With the increasingly strict control of land red lines by the country,the construction of ring highways is rapidly developing,and the demand for roadbed filling earthwork is increasing.The quality and quantity of earthwork restrict the development of highways;However,Xuchang City in Henan Province is a major province in mineral development,with approximately 3 million cubic meters of abandoned coal gangue increasing annually by 1 million cubic meters.After rain,coal gangue seriously pollutes the surrounding soil and occupies a large area of land for storage,urgently requiring treatment.After testing and detection,it was found that the performance of coal gangue is basically stable after being stored for 3 years,with a resistance to disintegration coefficient of 96%,a content of 1%iron sulfide,and a CBR value of 25%.It can basically meet the performance requirements of roadbed filling,turn waste into treasure,solve the problem of soil source in the surrounding highway,save land,and achieve good social benefits.

关 键 词：绕城高速 煤矸石路基 变废为宝 

分 类 号：U415[交通运输工程—道路与铁道工程]