Water-seepage-free, stuffy, humid and permanently-sprayed concrete supporting roadway white spraying coating and construction method

Abstract

The invention discloses a water-seepage-free, stuffy, humid and permanently-sprayed concrete supporting roadway white spraying coating and a construction method thereof. The coating comprises a coating A and a coating B. The construction method of the coating comprises the steps that the wall of a roadway is coated with the coating A, and after drying, the wall of the roadway is coated with a mixture of the coating A and the coating B. The problem of potential safety hazard of the permanent concrete-spraying support water-seepage-free stuffy and humid roadway of an underground mine is solved;a special paint and the process method are prepared through targeted research; a safe, economical and efficient method is adopted to spray a white coating on the roadway; the problems of quickly preventing roof fall and rib spalling potential safety hazards and monitoring ground pressure change of an underground mine are solved by a simple and visual method; the overall illumination brightness canbe increased by 50% or above on the original basis, obvious black burr cracks can be shown on the coating when the potential safety hazard of roof fall and rib spalling occurs, an operator can quickly and visually master the roadway surrounding rock stability condition, prying is conducted in advance, pumice is treated, and safety accidents are prevented.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a non-seepage, sultry, humid permanent spraying concrete support roadway spraying white coating and a construction method. Background technique [0002] Underground mining is a high-risk industry. In the process of underground ore mining, the roadway surrounding rock is affected by factors such as geological structure, ground pressure activity, blasting vibration, corrosion and weathering, and roof fall accidents are prone to occur. According to relevant data, among all safety production accidents in underground mines across the country, roof caving accidents are the most frequent safety accidents, accounting for about 40% of all underground safety production accidents. The frequent accidents of roof caving not only cause economic and property losses of enterprises, but also bring misfortune to many workers' families. There are many types of underground mine roadway...

AI Technical Summary

Problems solved by technology

However, when there is a safety hazard in the side of the roadway roof, even if the concrete sprayed concrete layer cracks and there are signs of a roof collapse accident, it is still difficult for the operators to quickly and effectively identify it (the underground mine roadway environment is bad, The working conditions are poor, the lighting in the roadway is generally dim, and when cracks appear on the sprayed concrete layer, it is easy to mix with the texture of the surrounding sprayed concrete layer, making it difficult to distinguish in time)