深部煤层底板灰岩水防治体系的构建——以平煤东部三矿为例

Construction of prevention and control system for limestone water in deep coal seam:With three mines in eastern Pingdingshan coalfield as an example

在对断层复杂程度和突水危险性分区评价的基础上,提出了平煤东部三矿二组煤底板灰岩水的防治体系。研究区断层构造整体上较为简单,二组煤开采寒武灰岩水突水危险性较小。灰岩水治理基本以疏放为主,由此提出二组煤水害防治体系,由防治技术、防治工程、技术保障系统和矿井水资源化与矿区水资源优化配置4个子系统组成;技术保障系统是基础和保障,防治技术是手段,防治工程是核心,矿井水资源化与矿区水资源优化配置是发展方向。本防治体系的实施可以解放受承压水威胁煤炭资源476万t,底板水压下降0.3 MPa(到2020年底),完全实现二组煤的安全生产和矿井水的资源化利用。

Based on the evaluation of fault complexity and water inrush risk,the prevention and control system of 2 coal floor limestone water in the floor of second group of coal seams in eastern three mines in Pingdingshan mine field was proposed.The complexity of the fault structure in the study area is relatively simple as a whole,and the risk of water inrush from Cambrain limestone is small for second group of seams.The limestone water treatment is based on the method of drainage.Water hazard prevention and control system of the second group of seams consists of four subsystems:prevention and control technology,prevention and control engineering,technical support system,mine water resources and optimal allocation of water resources in the mining area.The prevention and control technology is the means,the prevention and control engineering is the core,and the mine water resources and the optimal allocation of water resources in the mining area are the development direction.By the end of 2020,the implementation of this control system will liberate 4.76 million tons of coal resources under the pressure of pressurized water,and the water pressure of the floor will drop by 0.3 MPa.And the study area will fully realize the safe production of the second group of seams and the resource utilization of the mine water.