Vertical blast hole geological exploration device

Abstract

The invention discloses a vertical blast hole geological exploration device. The device is characterized in that the device comprises a shell, a camera, a radial slide component and a hollow bar; thehollow bar is arranged in the shell; the camera is arranged on a top of the hollow bar; the radial slide component includes a slide rail, a pulley and a radial telescoping apparatus which are successively connected; the slide rail is vertically arranged; the radial telescoping apparatus is arranged horizontally; the other end of the radial telescoping apparatus is connected to the shell; the pulley is provided with a capacitive gate sensor; and the capacitive gate sensor and the camera output data through a transmission line. The device has advantages that geological conditions of lithology, fracture development, a karst cave and the like of different positions in a blast hole can be tested; for different geological conditions, different charge quantities are adopted so as to control a blasting effect; and too many explosive materials at fractures and defects, large blasting shake and generated flying stones can be prevented from damaging surrounding buildings and hurting life safety.

Description

technical field [0001] The invention relates to a geological detection device for a vertical blast hole, which belongs to the technical field of blasting engineering. Background technique [0002] At present, with the improvement of blasting accuracy requirements in geotechnical engineering, under the condition of ensuring that the rock mass can be excavated, it is necessary to carry out fine blasting on the rock mass to generate a small blasting vibration, so as to reduce the impact on the surrounding structures and reserved rock mass. body destruction. [0003] However, during the blasting and excavation of rock mass, in some places with complex geological conditions, the lithology is different at different excavation depths, and fissures are often developed, and some rock masses may even have some geological condition defects such as karst caves. [0004] Under such conditions, if there are different lithologies and geological defects in the same blast hole, the ideal bl...

AI Technical Summary

Problems solved by technology

If the blasting charge is designed according to the soft rock, it may lead to a large block of rock in the hard rock section, and even the excavation and blasting cannot be realized. If the hard rock is at the bottom of the hole, it may lead to under-excavation; Design blasting may lead to excessive charge, causing over-excavation at the bottom of the hole, which will also cause waste of explosives

[0005] For rock masses with cracks and caves, the explosives will be leaked in the cracks and caves during the charging process, resulting in the concentration of explosives in these defective rock masses, which will cause a large amount of charge. When the engineering blasting is carried out When the explosion occurs, excessive blasting vibration will be generated, and the blasting flying rocks will cause harm to the surrounding structures and personal life safety.

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