垃圾填埋场设计计算中垃圾密度的取值

Data Acquisition of Waste Density in the Calculation of Landfill Site Design

针对我国城市垃圾卫生填埋场设计与建设中的问题,结合垃圾理化特性,提出垃圾填埋场不同工序的工艺设计应选用不同的垃圾密度值,即填埋库容量计算应以沉降密度为设计参数;而填埋单元作业有关设计应以压实密度为设计参数,这样才能保证垃圾填埋场有关技术经济指标的科学性与准确性.真实可靠的垃圾密度值取决于科学合理的取样测算方法,即沉降密度取样测算应考虑取样时间、位置等多因素对密度值的影响;而压实密度取样测算试验则应在与生产运行相似的条件下进行.

Accordance with the problems existed in the physical design and construction of waste landfill site in the cities of our countries, the article put forward that the different process design should adopt different value of waste density combined with Waste 'physical and chemical characteristics, ie. the calculation of waste capacity should take sedimentation density as design parameter, during the cell construction the design should take the compacting density as design parameter. In this case, the correctness of the relevant technical and economic tar- . gets can be guaranteed. The actual and reliable waste density value will depend on the scientific and reasonable sampling measurement methods, ie. sedimentation density sampling calculation should consider the impacts of sampling time, location etc. factors to the density value and the test of compact density sampling calculation should be carried out under the conditions of similarity with the production and operation.