【摘要】 为了解决建筑垃圾占用土地资源及带来的一系列环境问题，同时验证建筑垃圾混合料的路用性能及其推广示范性，结合福州地铁二号线橘园洲站作为试验路段，进行了建筑垃圾混合料基础性能试验、基本路用性能试验、现场工艺试验、路基强度测试及路面沉降监测。研究结果表明:建筑垃圾的基本路用性能满足规范要求，在实际施工中可根据细集料的类型有选择性地采用粗集料未级配或级配后的建筑垃圾进行回填;使用建筑垃圾混合料作为回填料可在保证路基强度和刚度的前提下减少碾压次数;相比传统回填料，建筑垃圾混合料作为路基填料回填地铁车站基坑既可以减少路基碾压施工对车站结构及预埋市政管线的影响，又可以使回填路基具有更大的回弹模量和更好的长期路用性能。更多还原

【Abstract】 In order to solve the problems of land resources occupied by construction waste and a series of environmental problems faterwards,as well as to verify the road performance of the construction waste mixture and its demonstration of its promotion,combined with the Juyuanzhou Station of Fuzhou Metro Line 2 as the test section,the basic performance test,basic road performance test,field process test,subgrade strength test and pavement settlement monitoring of construction waste mixture were carried out. The research results show that the basic road performance of construction waste could meet the specification requirements,and in the actual construction,the construction waste without or after coarse aggregate gradation can be selectively used for backfill according to the type of fine aggregate. Using construction waste mixture as backfill can reduce the number of rolling under the premise of ensuring the strength and stiffness of subgrade. Compared with the traditional backfill,the backfill of subway station foundation pit with construction waste mixture as subgrade filler can not only reduce the influence of subgrade rolling construction on station structure and pre-buried municipal pipelines,but also make the backfill subgrade have greater resilient modulus and better longterm road performance.更多还原