Depth detection device suitable for rock burst roadway soft rock mass replacement

Abstract

The invention relates to the technical field of roadway construction, in particular to a depth detection device suitable for rock burst roadway soft rock mass replacement, which comprises a bottom plate, a main box and a controller, and is characterized in that the top end of the bottom plate is fixedly connected with a first hydraulic rod, and the top end of the first hydraulic rod is fixedly connected with the bottom end of the main box; a fixing device is arranged on the rear side of the main box, an offset detection mechanism is further arranged on the main box, the excavation depth of the soft rock mass can be measured through the depth detection device, the measurement precision is high, and good convenience is provided for follow-up construction and construction period arrangement; a deep rod moves forwards under the action of a pushing mechanism, after the deep rod stops moving, a hardness detection mechanism judges the rock hardness at the moment by judging the forward deep distance of a hardness detection rod, and an offset detection mechanism is used for detecting the offset during detection, so that the accuracy is improved; and the arrangement of an expansion part can reduce the resistance of peripheral rocks to the deep rod when the deep rod advances.

Description

technical field [0001] The invention relates to the technical field of roadway construction, in particular to a depth detection device suitable for replacement of soft rock masses in rock burst roadways. Background technique [0002] Roadway is a channel dug for mining lifting, transportation, ventilation, drainage, power supply, etc. during underground mining. In the whole life cycle of the roadway, there will always be the risk of rock burst. In order to reduce the risk of rock burst, some necessary measures need to be taken, and reasonable replacement is one of them. [0003] Reasonable replacement is to take targeted measures. Under the safety guarantee environment of the first support unit, some extremely soft rocks, expansive rocks and rock masses that have become loose and rheological under the action of external forces in the superficial surrounding rocks of the roadway are removed in advance. Outside the design section of the roadway, the method and means of excava...

AI Technical Summary

Problems solved by technology

[0004]In the process of reasonable replacement, it is necessary to measure the depth to be excavated in advance in order to ensure the arrangement of the construction period, because the deeper the rock, the The hardness will increase. The depth to be excavated in the soft rock mass is directly related to the hardness inside the rock mass. When measuring, it is necessary to find the rock mass whose hardness meets the requirements first, and use the depth of the rock mass as the excavation depth. Most of the existing depth detection devices are relatively simple, which makes the detection accuracy not accurate enough, and there are still certain disadvantages

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