Fixing method of explosion vibration testing geophone

Abstract

The invention discloses a fixing method of an explosion vibration testing geophone. An employed fixing pedestal is a T-shaped conical pedestal formed by combining an iron plate (2) with an iron cone (1). Before a three-dimensional geophone (4) is installed and fixed at a field, first of all, the iron cone (1) of the T-shaped conical pedestal is hammered into the ground deep into a soil layer or a weathering layer by use of a hammer, and the iron plate (2) is adjusted to be flush with the ground; and slurry-form gypsum blended by adding water is poured to the iron plate (2) to form a gypsum layer (3), then the lower-portion pedestal of the three-dimensional geophone (4) is placed on the gypsum layer (3), a horizontal bubble at the top of the three-dimensional geophone (4) is adjusted to be at a center position, the X direction of the three-dimensional geophone (4) is oriented towards the center of an explosion area, and after the gypsum layer (3) is solidified, a special-purpose connecting line is used for connecting a monitor with the three-dimensional geophone (4). According to the invention, the employed iron cone (1) at the lower portion of the T-shaped conical pedestal can be deep into the ground according to the thickness of the weathering layer or the soil layer to be connected integrally with the ground, and explosion vibration detected on the pedestal can reflect real vibration intensity of a building at a certain place.

Description

technical field [0001] The invention relates to a method for fixing a vibration testing instrument, in particular to a method for fixing a vibration pickup in an engineering blasting vibration test, and is particularly suitable for fixing the vibration pickup under engineering geological conditions with thick regolith. Background technique [0002] In the engineering blasting vibration test, more than 4 monitoring points need to be arranged along the line between the blasting area and the protection object, and the propagation law of blasting vibration is determined according to the vibration data detected by the vibration pickup at each monitoring point. The vibration pickup is placed on the base of the monitoring point. Whether the base is closely combined with the ground surface is very important, which is related to whether the detected data can truly reflect the vibration intensity of the particle at this position. There are two kinds of fixing methods for the existing ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the fixed base of the shock picker is difficult to be tightly combined with the weathered layer or soft soil layer in the engineering blasting vibration test, resulting in inaccurate detection data, and to provide a reliable The fixing method of the blasting vibration test pickup that is tightly combined in the layer or weathered layer, thereby effectively solving the problem that the base of the blasting vibration test shock pickup is not tightly combined with the weathered layer or soil layer

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