城市垃圾深地封存区域泄漏危险性监测预警研究

Monitoring and Early Warning of Leakage Risk in the Gob Area Filled by Municipal Solid Waste

将城市垃圾及其衍生物无害化处理后,深埋至矿山采空区并进行封闭处理,不仅能将其与生物圈隔离,还能减少矿山采空区塌陷带来的灾害。为了保证无害化处理后的采空区充填物不对相邻作业区域及地下水系统造成污染,需要对封闭区域进行实时监测,直到其状态完全稳定。首先,通过分析城市垃圾深地封存技术,针对封闭区域围岩应力场状态、破裂微震事件、位移情况以及污染物状态,建立了一套用于防范污染物泄漏的多参数监测系统;其次,结合类似地下工程监测预警经验,提出了同时考虑围岩稳定性与污染物泄漏危险性的预警方法,以及实施应急措施的条件。该研究可以对城市生活垃圾及其他固体废弃物无害化深地封存区域的监测预警提供参考。

After harmless treatment,the municipal solid waste(MSW)and MSW by-product were filled to the goaf,and closing treatment was carried out.So,the goaf was isolated from the biosphere,and the disaster caused by the collapse of the mine goaf was reduced.In order to ensure that the goaf filling material after harmless treatment do not cause pollution to adjacent working areas and groundwater system,it is necessary to carry out real-time monitoring on the closed area until its status is completely stable.Firstly,by analyzing the deep storage technology of MSW,and aiming at the stress state,micro seismic event,displacement as well as pollutant status of the surrounding area,a multi-parameters monitoring system was established to prevent pollutant leakage.Secondly,combined with the experience of monitoring and early warning of similar underground engineering,an early warning method considering both the stability of surrounding rock and the risk of pollutant leakage was put forward,as well as the conditions for implementing emergency measures.This research can provide a reference for the monitoring and warning of MSW and other solid waste in the deep storage area.