城市道路建筑渣土三级分类体系试验研究

Experimental study of three-level classification system of urban road construction muck

当前城市道路的翻新扩建工程产生了大量混杂固体废物的路基杂填土,此类建筑渣土成分组成复杂且构成比例极不均匀,对其进行适当处理后再用作路基填土可以大大降低工程建设成本且减少其对城市环境的污染。文章依据相关道路建设规范,通过现场调查取样和实验室测试分析,建立了一套城市道路建筑渣土三级分类体系,并提出了相关分类指标,进而为道路建筑渣土分类、土体工程利用价值评估提供了较为简便、直观、有效的判据。

Urban road renovation and extension have yielded a large amount of subgrade miscellaneous fill mixed with various municipal solid wastes every year. The construction costs and urban environmental pollution will be remarkably reduced by recycling this kind of soil body, which usually has complex components and heterogeneous composition, as subgrade fillings through a series of proper treatment. Based on the related road construction codes, a three-level classification system of urban road construction muck is proposed in this paper by field investigation, sampling, laboratory testing and analysis. The corresponding category indicators are also recommended. The study provides simple, intuitive and effective criteria for sorting materials and evaluating engineering application potentials of such particular soil body.