Mine safety in coal mines, which in turn can initiate more extensive coal dust explosions. For this reason, rock dusts such as limestone dust are spread throughout coal mines to diminish the chances of coal dust explosions as well as to limit the extent of potential explosions, in a process known as rock dusting. Coal dust explosions can also begin independently of methane gas explosions. Frictional heat and sparks generated by mining equipment can ignite both methane gas and coal dust. For this reason, water is often used to cool rock-cutting sites. Miners utilize equipment strong enough to break through extremely hard
1995 Daegu gas explosions At the ceremony, about 500 people including family members and citizens attended the ceremony and prayed for the victims' souls. 1995 Daegu gas explosions The 1995 Daegu gas explosions was a gas explosion that occurred at Daegu Metro Line 1, a construction site located in Sangin-dong, Daegu, South Korea, on 28 April 1995. At least 101 people, including 42 Yeoungnam Middle School students were killed with as many as 202 people injured. The event occurred on April 28th, 1995 at 7:52 am in the underground construction site of the 2nd Section of the Sagley Subway Line 2 at Nam High