摘要
老港综合填埋场污泥填埋库区采用挡墙进行竖向扩容堆高,本研究在污泥竖向堆体边坡上布置表面位移、沉降、滞水位、主水位等监测设施,对挡墙、污泥竖向堆高边坡分别进行稳定安全系数计算,判断其在各种工况下的稳定性。结果表明:污泥库区周边挡墙在基本工况、满水位状况下均满足规范要求,但库区周边运输车辆荷载对抗滑移稳定性影响较大。经计算,污泥堆体边坡的稳定安全系数远大于规范要求,不会发生滑移,但局部污泥由于临时覆盖膜破损、雨污分流失效,会发生局部流滑。为保证污泥竖向堆体的长期安全稳定性,结合日常污泥填埋作业运营,提出污泥堆体稳定控制措施。
The Laogang comprehensive landfill site uses retaining walls for vertical expansion and heightening of the sludge disposal area.Surface displacement,subsidence,stagnant water level,and main water level on the vertical sludge pile slope were monitored in this study.The stability safety coefficient for the retaining wall and the sludge vertical pile slope were calculated separately to determine their stability under working conditions.The results showed that the retaining wall around the sludge reservoir area met the requirements of the regulations under basic working conditions and full water level conditions,but the load of transport vehicles around the reservoir area had a significant impact on the anti-slip stability.The stability safety coefficient of the sludge slope was much greater than the regulation requirements,and no sliding would occur.However,due to the damage of temporary covering film and the failure of rainwater and sewage separation,local sludge may slide.To ensure the long-term safety and stability of the vertical sludge pile,combined with daily sludge landfill operations,stability control measures for the sludge pile were proposed.
作者
董辉
毛忠荣
毛永军
储建
秦胜男
DONG Hui;MAO Zhongrong;MAO Yongjun;CHU Jian;QIN Shengnan(Shanghai Laogang Waste Disposal Co.Ltd.,Shanghai 201302)
出处
《环境卫生工程》
2024年第S01期111-116,F0002,共7页
Environmental Sanitation Engineering
基金
上海城投环境(集团)有限公司科研项目(2020-LGCZ-KX009-F274)。
关键词
污泥填埋场
填埋堆高
稳定监测
稳定安全分析
控制措施
sludge landfill
landfill stacking
stability monitoring
stability safety analysis
control measures
