Auxiliary explosion vibration tester and explosion vibration test method

Abstract

The invention provides an auxiliary explosion vibration tester which comprises a foundation pile and a vibration meter installation position, the lower end of the foundation pile includes a cone, the vibration meter installation position includes a hollow cube with three adjusting screws, the three adjusting screws are positioned in three vertical side surfaces of the hollow cube respectively, and the hollow cube is fixed in the upper end of the foundation pile via the three adjusting screws; and two steel bars bent to an arc shape or a groove type are arranged in the middle portion of the foundation pile, and are welded and fixed to the side surface of the foundation pile along the vertical direction, and the bent steel bars and the side surface of the foundation pile form an enclosed fixing ring. The invention provides a explosion vibration test method correspondingly. A sensor of an explosion vibration meter is bound and fixed to the auxiliary explosion vibration tester via gypsum and water; the auxiliary explosion vibration tester can be rapidly nailed into the ground of soil and broken stones, the surface is flattened rapidly, and the sensor of the explosion vibration meter can be installed stably and conveniently; and the auxiliary explosion vibration tester is simple in structure and low in cost and can be pulled out conveniently in a labor-saving way.

Description

technical field [0001] The invention relates to a device for fixing a sensor of a blasting vibration measuring instrument and a blasting vibration measuring method, belonging to the technical field of blasting engineering. Background technique [0002] When blasting is to be carried out, it is necessary to measure the harmful effect of blasting - "blasting vibration". The blasting test site is mostly land and covered with gravel, so that the sensor of the blasting vibration measuring instrument cannot be placed. [0003] The Chinese invention patent "A Simple Stationary Device for Fixing Vibration Sensors in Soft Rock and Soil" (Application No. 201520455008.7) discloses a device for fixing vibration sensors. It uses the column teeth to increase the z-direction sliding resistance. The column teeth are hidden in the inner cylinder of the steel tube, and the end is flush with the surface of the steel tube. When the sensor is fixed, the teeth are rotated to make the column teeth...

AI Technical Summary

Problems solved by technology

[0002] When the blasting operation is to be carried out, it is necessary to measure the harmful effect of the blasting - "blasting vibration". Most of the blasting test sites are land and full of gravel, which makes it impossible to place the sensor of the blasting vibration measuring instrument.

[0003] The Chinese invention patent "A Simple Standing Device for Fixing Vibration Sensors in Weak Rock and Soil" (application number 201520455008.7) discloses a device for fixing vibration sensors. The device consists of steel pipes, cylindrical gums, column teeth, and cone heads Composition, use the column teeth to increase the z-direction sliding resistance, the column teeth are hidden in the inner cylinder of the steel pipe, and the end is flush with the surface of the steel pipe. When the sensor is fixed, the tooth bed is rotated so that the column teeth protrude from the steel pipe outlet hole and wedge into the surrounding rock and soil In this method, the vibration sensor is fixed by a steel pipe with a cone head, and the column teeth are wedged into the surrounding rock and soil, and the steel pipe and the measuring point are firmly coupled in the three directions of x, y, and z through the column teeth. Although the device itself is fixed and stable, However, it is difficult to rotate the gums to make the column teeth protrude from the steel pipe hole and wedge into the surrounding rocks, and the level of the sensor cannot be guaranteed. The connection between the sensor and the device is not strong enough, and the device is not easy to pull out of the ground after vibration measurement.

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