Tunneling embrasure positioning and guiding device and using method thereof

Abstract

The invention discloses a tunneling embrasure positioning and guiding device and a using method thereof. The tunneling embrasure positioning and guiding device comprises a base frame component, a positioning component and an explorator component; the base frame component comprises a portal frame and an arc-shaped frame; the positioning component comprises a horizontal positioning arm and a rocker arm; the explorator component comprises an explorator and an explorator base; the explorator base is fixedly arranged at the horizontal positioning arm or / and the rocker arm in a way that the longitudinal position is adjustable; and the explorator is fixedly arranged on the explorator base in a way that included angles in directions parallel to and vertical to the horizontal positioning arm or / and the rocker arm are adjustable. According to the tunneling embrasure positioning and guiding device and the using method thereof, an embrasure can be positioned, and further, guided drilling on embrasures of different angles can be carried out, an accurate position and drilling direction are provided for operators, and embrasure-drilling accuracy is ensured, so that an expected blasting effect can be obtained, the service efficiency of explosive is ensured to be high when the blasting is carried out, the tunnel forming degree is high after blasting, and the tunneling efficiency is high, further, better security protection can be obtained, and the cost is lowered.

Description

technical field [0001] The invention relates to a blast hole positioning and guiding device for blasting roadway excavation, in particular to a positioning and guiding device for precise cutting and a use method thereof. Background technique [0002] When the drilling and blasting method is used to excavate the underground roadway, whether it is smooth blasting or combined blasting, there are certain requirements for the accuracy of cutting and drilling. Especially for hard rock blasting, conical cutting is generally adopted, and this cutting method is also more suitable for hard rock blasting. For the drilling method of conical cutting, there is no general guiding method in the prior art. There are special drilling machines for large-scale roadways with high accuracy and high efficiency (the forming cutting machine does not need blasting drilling), but the equipment cost and maintenance cost are also very high. It is suitable for nugget blasting of small and medium-sized r...

AI Technical Summary

Problems solved by technology

For the drilling method of conical cutting, there is no general guiding method in the prior art. There are special drilling machines for large-scale roadways with high accuracy and high efficiency (the forming cutting machine does not need blasting drilling), but the equipment cost and maintenance cost are also very high. It is suitable for nugget blasting of small and medium-sized roadways; in the existing technology, for small and medium-sized roadways, especially for roadways that are manually drilled and blasted, the drilling accuracy is achieved through human subjective operations, which will vary according to the operator's proficiency. Therefore, often the blastholes drilled are very different, especially for the drilling construction of tapered cuts, the drilling deviation is normal, which will lead to low explosive application efficiency during blasting, low roadway formation after explosion, low tunneling efficiency, and safety. Problems such as low security (roof blown loose), high support cost, etc.

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