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Test method of blasting vibration attenuation effect

A blasting vibration and attenuation effect technology, applied in measuring devices, measuring ultrasonic/sonic/infrasonic waves, instruments, etc., can solve problems such as irregular vibration testing, lack of large-scale networking functions, and inability to analyze vibration attenuation effects, etc. The effect of avoiding network congestion

Inactive Publication Date: 2017-06-13
INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

This method does not have the function of large-scale networking, and the vibration test is not standardized, especially the vibration attenuation effect cannot be analyzed. The method of formula derivation has low data reliability.

Method used

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  • Test method of blasting vibration attenuation effect
  • Test method of blasting vibration attenuation effect
  • Test method of blasting vibration attenuation effect

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Embodiment Construction

[0022] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0023] Such as figure 1 , figure 2 As shown, in the present embodiment, the method for testing the blasting vibration attenuation effect proposed by the present invention includes the following steps:

[0024] Step 1. Set up monitoring points on three radial lines with the blasting point as the center point in a close-in and far-sparse manner, and set six monitoring points on each radial line. The detection points and the blasting points are located on the same elevation;

[0025] Step 2. Install the three-vector velocity sensor on the monitoring point. The distance between each sensor and the blasting point can be set to 10, 15, 25, 35, 50, and 70m, where the Z direction is vertical and the X direction points to the explosion source. is the horizontal radial direction, and the Y direction is the horizontal tangential direction. Number the mo...

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Abstract

The invention relates to a test method of a blasting vibration attenuation effect. The method comprises the following steps of setting monitoring points; installing a three-vector speed sensor; measuring and recording the position and the elevation of a seismic source center and the three-vector speed sensor; recording the number of the three-vector speed sensor and a connected signal collecting instrument; setting a door opening threshold value; performing blasting point blasting; collecting a blasting vibration signal by the signal collecting instrument, and transmitting the signal to a computer system and a server; analyzing the triggering demonstration and vibration amplitude and frequency change rules; automatically analyzing an attenuation effect model; selecting a vibration control standard; performing evaluation by combining the practically measured vibration amplitude. The test method has the advantages that the remote measurement and monitoring on blasting vibration are realized; data of each time blasting vibration is uploaded to the server at the first time; the blasting vibration characteristics are analyzed so as to provide data foundation for blasting vibration study; the practical engineering significance is realized in the aspects of strictly controlling the blasting seismic effect, realizing scientific monitoring, objectively analyzing the blasting vibration influence and the like.

Description

technical field [0001] The invention relates to the technical field of blasting construction, in particular to a method for testing the attenuation effect of blasting vibration. Background technique [0002] Due to the complexity of the blasting vibration process and the diversity of propagation media, the impact of blasting vibration on the surrounding environment and buildings cannot be accurately predicted; the propagation mode and attenuation law of seismic waves excited by blasting vibration are currently unknown. Unable to give a unified formula theoretically. Usually, small-scale blasting tests and on-site engineering measurements are mainly used to obtain vibration data, and then analyzed and studied through empirical formulas. Therefore, it is very important to obtain first-hand, true, accurate and rich blasting vibration data in each blasting construction. Traditional testing methods are increasingly unable to meet the needs of modern blasting vibration testing. ...

Claims

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Application Information

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IPC IPC(8): G01H17/00
CPCG01H17/00
Inventor 刘博刘亚
Owner INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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