Full-automatic measuring instrument and measuring method for spraying water quantity of underground engineering roadway top plate

Abstract

The invention discloses a full-automatic measuring instrument and a measuring method for the spraying water quantity of an underground engineering roadway top plate. The measuring instrument comprises a spraying water collecting container, wherein the upper end of the spraying water collecting container is connected with a receiving device; a water discharge port is arranged at the lower end of the spraying water collecting container; a pressure sensor is arranged at the bottom inside the spraying water collecting container; at least one liquid level switch is arranged at the side inside the spraying water collecting container; the measuring instrument also comprises a timing and automatic flow display device; the timing and automatic flow display device comprises a single chip microcomputer, a control panel and a display screen; and the single chip microcomputer is connected with the display screen, the control panel, the pressure sensor and the liquid level switch respectively. The measuring method comprises the steps of: collecting the spraying water of the top plate, and calculating the flow according to the volume and the time of the spraying water. With the adoption of the measuring instrument and method, the precise measurement of the spraying water of the roadway top plate is realized; the situation of large errors caused by the fact that the spraying water quantity is generally measured through estimation depending on the experience because of the lack of advanced effective instruments in the spraying water quantity measurement in mines or tunnels is changed; and the measuring instrument and method are applicable for underground engineering such as mines, tunnels and the like and are wide in applicable range.

Description

technical field [0001] The invention relates to an automatic measuring instrument and a measuring method for the amount of sprayed water on the roof of an underground engineering roadway. Background technique [0002] At present, the construction of underground projects such as large and long tunnels, subways, hydropower stations, iron mines, and coal mines is booming in my country, but water inrush accidents often occur, causing a large number of casualties and economic losses. Part of the reason for this is that the monitoring of water inflow in mines or tunnels is not in place, and it is impossible to accurately measure the water inflow in cracks. [0003] Water spraying on the roof of the roadway is an important part of the water gushing from the cracks in the roadway. The water outlet area is large and the water flow is relatively scattered. At present, in the measurement of the amount of water sprayed on the roof of the mine or tunnel roadway, there is no effective an...

AI Technical Summary

Problems solved by technology

At present, in the measurement of the amount of water sprayed on the roof of the mine or tunnel roadway, there is no effective and accurate measuring instrument in China. The surveyors mostly use empirical methods or non-professional instruments to estimate and measure, and the measurement results obtained have large errors. There is still a big gap in the development of measuring instruments

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