浅埋煤层工作面顶板溃水机理及防控体系研究

Study on Prediction Methods of Workface Inflow in Conditions of Different Mine in Shallow Coal Seam

浅埋煤层开采期间,覆岩导水裂缝带极易沟通煤层顶板上部全部含水层,引发工作面溃水灾害的发生。因此,在分析顶板溃水产生机理及形成条件的基础上,根据工作面开采顺序对首采工作面、次采工作面提出了相应的配套涌水量预计方法,可为工作面排水系统能力设计及设防能力确定提供理论依据;同时,针对浅埋煤层顶板发生溃水灾害的特点,提出了针对性的灾害防控体系。

During the period of shallow coal seam mining, overlying water flowing fractured zone of coal seam roof is very easy to communicate all aquifer,induced working face water bursting disaster.Therefore, produced in the analysis of roof water burst basis and conditions of forming mechanism,according to surface mining sequence work puts forward corresponding water inflow forecast method of the first mining face, mining working face, which can provide the theoretical basis for the working surface drainage system design and the ability to determine the ability of fortification; at the same time,according to the characteristics of roof light buried coal seam occurrence of water bursting disaster, puts forward the disaster prevention and control system.