Water damage is one of the five natural disasters in coal mines，Seriously affecting the safety production of coal mines。To prevent mine water damage accidents，Sunjiacha Longhua Coal Mine fully considers the impact of various water hazard factors on mining activities，From Management、Equipment、Start with technology，Pay close attention to the prevention and control of water damage。
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“How about the mine hydrology online system installed underground，Is the system running stably、Is the monitoring accurate？"The production and mine director asked the geological survey and water prevention and control technician。
"Drainage water drilling hole that used to have water on the underground roof，Need to arrange special evacuation of people regularly，Time-consuming and laborious；The water level in the goaf sealing wall cannot be accurately observed，Sometimes water cannot be drained in time。Since installedKJ-402Type mine hydrological monitoring system，No one is required to keep an eye on the scene，Can carry out real-time monitoring and control of mine water conditions in an all-round way，When the water level is high, the automatic monitoring and alarm system will be activated，The ground will arrange personnel according to the signal to solve the problem，Effortless and safe。" said the geological survey technician of the mine。
It is reported，Establishment of this system，Abnormal water volume at underground monitoring points can be detected in time，Dynamic changes in mine water inflow，With mining area、Relationship between mining levels。Easy to grasp mine hydrogeological information，Understand the hydraulic connections between various water systems in the mining area and the dynamic changes in hydrology，Early detection of water damage hazards，Eliminate danger as soon as possible，Preventing major water damage，Plays a significant role in reducing casualties and property losses。
Regular physical examination in mines"CT”
Multiple coal seams are mined in the mine, and the mine field exists8A closed old kiln，There are many mines around it，Frequent mining activities，Laokong water poses a certain water hazard threat to mine safety。For this，A special investigation team for hidden disaster-causing factors was established with the mine manager as the team leader，With mining scope、Water accumulation in the goaf、Focus on surface subsidence areas and other contents，Visit and investigate surrounding mines one by one and exchange drawings，Know the mining trends of surrounding mines in real time，Do a solid job in preventing water damage。At the same time，The company cooperates with Xi'an Research Institute of China Coal Science and Industry Group，Carry out ground geophysical exploration，The water richness of underground aquifer、"Delineate" the distribution range of water accumulation in the goaf，Photography for mine water-containing bodies"CT”片。At the same time，The company introduced a thousand-meter directional drilling rig，Combined geophysical exploration "target area"，Really "hit wherever you point"，Water hazard management shifts from local to regional management。
Innovation increases mine water diversion
During trench mining at the working face，There are fish ponds and water storage pits in Cheergai ditch on the surface，In the process of evacuation，Due to the instability of the gravel layer，Borehole collapse often occurs，Technicians innovatively proposed to install screen tubes，Easily solved the problem of borehole collapse，Achieved by0m3/hTo15m3/hwater release volume，This ensures that mining at the working face is not threatened by surface water。
The underground raw coal bunker passes through the aquifer，Water seeps through the inner wall of the coal bunker all year round，As a result, coal-carrying water sometimes appears at the bottom of the coal bunker，By constructing "diversion" boreholes around the coal bunker，Successfully diverted aquifer water into the tunnel through boreholes，A small innovation solved the "headache" of Zhao Pengjin, the captain of the belt transportation team for many years。
Sunjiacha Longhua Coal Mine has always adhered to the principle of "mine drainage、Water supply、The trinity management concept of “ecological and environmental protection”，In order to improve the comprehensive utilization rate of mine water，Use the rock pores in the goaf to filter，Realizing natural purification m88 casinoof mine sewage。The purified water can be directly used for mine production、Choose water for washing，Simple treatment can be used for factory greening、dusting and watering，It not only reduces the cost of sewage treatment，Another solution to the problem of water replenishment in mines。（Yuan Wei）