大型垃圾填埋场表面沉降研究

Refuse Surface Settlement in the Shanghai Refuse Landfill

研究了在上海市老港垃圾填埋场17号填埋单元建造的3000m‘小型卫生填埋场垃圾表面沉降规律。结果表明,表面沉降与垃圾的压实程度有关,在填埋过程中,垃圾被充分压实后,沉降就相对较小。在所监测的25年时间内,最大累计沉降大于lin,是垃圾填埋初始高度(4m)的25％。根据垃圾表面沉降的预测结果,讨论了老港垃圾填埋场的利用途径和可能性。

Settlement of refuse surface in the large-scale simulator located in Shanghai Refuse Landfill site has been monitored and its long-term prediction was made. The intial refuse height was 4m and the area of simulator was 3000m2. It was found that the settlement was a function of refuse density. Less settlement was monitored at the points where the refuse was compacted heavily. The maximum cumulative settlement of 1m, 25% of the initial height, was found during the 2.5 years of monitoring from April 1995 to October 1998. The reuse approaches for the Landfill were discussed based on the settlement rules.