Sandaogou Coal Mine Surface Water Flooding Well Disaster Prevention Model Research

Mountain coal mine complex hydrogeological conditions, disaster occurred many timesin the history of surface water flooded well, is our country mountainous area type coal surfacewater flooding Wells multiple regions. With the development of the mining enterprises in ourcountry economy, the surface water flooding Wells disasters direct and indirect economiclosses caused by more and more big. Study on the model of mountain coal mine, therefore,prevention and control of surface water has theoretical and practical significance.Changed the original rock stress distribution in the process of coal mining, mine channelcaused by disasters destroyed the natural surface drainage system, provides an importantchannel for surface water flooded Wells, a serious threat to the safety production in coal mine.Made a research on the full thesis is based on the analysis of the geographical and geologicalconditions, the river in the studied area disaster has carried on the statistical analysis,summarized the surface water flooding Wells disaster development pattern. First proposed theconcept of "mine channel disaster"(coal mining activities by the overburden stressdistribution in the process of change, deformation of rock mass damage, formation is affectedby river valley landforms, and provided an important channel for mine water fillingcharacteristics of disaster, called "mine channel disaster"). And mine disasters channeldevelopment evolution process can be divided into rock mass stress changes-mountaincracks three main stages-rock mass deformation and destruction. Sums up the distributionrule of mine channel disaster:(1) cracks throughout the slopes and the top of the mountain;(2)the fracture strike and drift towards almost vertical;(3) collapse is located in the river on theright bank. Through analysis, these mines channel disasters are become the important factor of surface water flooding Wells disasters, find out its law of development and distributioncharacteristics, is the basis of surface water flooding Wells disaster mechanism research, andthe engineering design of the surface water prevention and control of important basis.Through summing up predecessors’ experience from the surface water in combinationwith characteristics of mountain surface water, the mine surface water control project is putforward, according to the actual condition and objective condition, according to the principleof the right, select "biological measures, engineering measures and management measures" ofthe comprehensive treatment plan. Taking a mine as an example, the surface water preventionand control of engineering design, which is divided into three parts: temporary protectiveengineering, temporary protective engineering, permanent damage after rehabilitationengineering. In this topic, in order to better serve the mining, combined with the mining areaalong the channel surface water prevention and control of long, complicated geologicalconditions, structure and basic characteristics, and the need to meet the demands of thechannel having design, this paper tentatively developed a "mine channel surface waterseepage control structure".