Research on a cusp catastrophic model of water bursting in pit floors;

Simulation study on effect of inclined strata coal mine on floor water invasion

In order to analyze the influence and damage of the top and bottom of rock mass in floor water-resisting layers due to water pressure in water bearing layer and mining pressure, this paper applies the methods of similar material simulation test and mechanical analysis of floor water invasion in the near of faultage to further comprehend the mechanism of floor water invasion.

Stratification analysis and prediction system of floor invasion conducted by experts is set up with the aids of experience and knowledge of well known experts in the field of water precaution by using stratification analysis and considering all the factors influencing floor water invasion.

Introduced the circumstance in 13071 working face floor water bursting,Analysis and Judgment the Headwaters and passage of 13071 working faces floor water bursting,through studying have established right project,to manage floor water bursting.

14101 working face floor water bursting process in Jiulishan Coalmine,Jiaozuo Coal Industrial Group,figured out that the water bursting source is Carboniferous L8 limestone water,direct recharging source is Carboniferous L2 limestone water,indirect recharging source is Ordovician O2 limestone water,water conducting channel is coal floor mining-induced fissure zone.

15 coal seam floor water bursting situation carried out.