Method and device for detecting arrangement position of highly collection tunnel

Abstract

The invention discloses method and device for detecting an arrangement position of a highly collection tunnel, and relates to the technical field of arrangement position detection of the highly collection tunnels. The device is equipped with a high pressure air supply device, a rear end capsule, a front end capsule and a water filling device; the rear end capsule, the front end capsule and the water filling area are arranged in a drilling hole from outside to inside; the front end capsule and the rear end capsule are connected and communicated through a water filling pipe; an air outlet pipeline is arranged at an outlet of the high pressure air supply device; a pressure reducing and stabilizing valve, a flow meter and a valve are sequentially mounted on the air outlet pipeline; the valve is connected with one end of an air pipe, and while the other end of the air pipe passes through the rear end capsule to be positioned in the drilling hole between the rear end capsule and the front end capsule; the water filling device is communicated with the rear end capsule through a water pipe. According to the method, the breaking condition of deep rock bed is reflected according to the flow rate of the air from different depth in the drilling hole to the periphery of the drilling hole, so as to detect the height range of a fissure zone at a coal bed top plate, and as a result, the arrangement position of the highly collection tunnel can be determined, and the basis is provided for gas production and safety production of a mine.

Description

technical field [0001] The present invention relates to the technical field of measuring the stratum level of the high pumping roadway, in particular to a method for measuring the stratum level of the high pumping roadway and its device, especially suitable for the situation when the reasonable layer of the high pumping roadway cannot be determined by empirical values ​​in underground coal mines . Background technique [0002] After the coal seam is mined, the overlying strata will be deformed and destroyed from the top to the top, which will change the original state of the strata and enter the state of starting to move and stabilizing. When the movement of the overlying strata in the goaf tends to be stable, it can be roughly divided into three zones. That is to say, the goaf is divided into caving zone, fissure zone and curved subsidence zone from bottom to top in the vertical direction. [0003] The high drainage roadway arranged in the fracture zone has the charact...

AI Technical Summary

Problems solved by technology

The main advantage of this method is that the technology is relatively mature, the price of equipment is relatively low, and the analysis of the test results is relatively simple; , because there are large pores and fissures in the pressure relief zone, water will flow out along the fissures, which often makes the water in the borehole unable to fill the borehole, the error of the measurement result will be large, and the operation is also more complicated

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