A Method of Correcting the Amplitude and Direction of Blasting Vibration Velocity
A velocity amplitude, blasting vibration technology, applied in seismology, instruments, measuring devices, etc., can solve the problem of not being able to correctly reflect the damage of blasting to surrounding buildings, and achieve the effect of ensuring safety and production, and ensuring normal progress.
Active Publication Date: 2022-05-27
DALIAN NATIONALITIES UNIVERSITY
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Problems solved by technology
At present, sensors arranged at fixed positions are usually used to measure two mutually perpendicular horizontal vibration velocity amplitudes. However, since the arrangement angle and position of the sensors arranged at fixed points The point position also changes. At this time, the amplitude and direction of the measured vibration velocity are only consistent with the axis direction of the installed sensor, rather than the amplitude and angle of the horizontal vibration velocity pointing to the blasting point. The measurement results cannot correctly reflect Hazards of blasting to surrounding buildings
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[0034] The following is combined attached Figure 1-2The amplitude of the blasting vibration velocity and the method of direction correction are further explained.
[0035] The main object of the present invention is to overcome the above defects in the prior art, to propose a prediction method that can achieve a more accurate amplitude of the vibration velocity, the direction of the vibration velocity and the bursting point. The present invention employs the following technical solutions:
[0036] The hardware system comprising: a vibration collector, a single component speed sensor and a time trigger device, preferably, the time trigger device using a trigger line, after the burst occurs, the trigger line breaks the start time trigger, thereby time acquisition.
[0037] The location points involved include: sensor anchor point 1, sensor anchor point 2, burst point.
[0038] The specific technical solution implementation includes the following steps:
[0039] 1, in the blasting ar...
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The invention discloses a method for correcting the amplitude and direction of blasting vibration velocity, which belongs to the technical field of blasting vibration velocity correction in blasting construction. Technical points: Centering on the blasting area, select at least two monitoring points at a suitable position on the ground surface as sensor positioning points, first install two single-component velocity sensors with mutually perpendicular axes on one of the positioning points; At one positioning point, two single-component speed sensors whose axes are perpendicular to each other are installed under the measurement and control of the positioning device, so that the axes of the speed sensors at the two positioning points are consistent. Beneficial effects: the present invention can accurately understand and predict the vibration amplitude and vibration direction, and at the same time determine the plane position of the blasting point, and then control the blasting implementation according to different protected structure characteristics, and guide the blasting design and blasting construction , Effectively guarantee the safety of facilities and personnel around the explosion area and the normal production.
Description
Technical field [0001] The present invention belongs to the field of blasting vibration velocity correction technology in blasting construction, in particular to a method of amplitude and direction correction of blasting vibration velocity. Background [0002] In civil engineering construction, the excavation of rock and soil is a necessary link, the excavation of hard rock or soil layer generally uses blasting construction, and the vibration caused by blasting construction has certain hazards to surrounding buildings, so in blasting construction, the blasting vibration specification or standard requires the amplitude of the blasting vibration speed to be determined. At present, the sensor arranged in a fixed position is usually used to determine the amplitude of the horizontal vibration velocity of two perpendicular to each other, however, because the angle and position of the sensor layout of the fixed point can not be changed, and the explosion point of a site due to the chang...
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IPC IPC(8): G01V1/30
CPCG01V1/303G01V1/307
Inventor 李新乐窦慧娟袁学刚
Owner DALIAN NATIONALITIES UNIVERSITY