An explosion vibration sensor installation clamp applicable to soil mediums

A blasting vibration and fixture installation technology, applied in the direction of seismic signal receivers, etc., can solve the problems of increasing the workload of testers, unable to obtain valid data, and insufficient strength of bonding materials, and achieves simple structure, fast installation speed, and reduced work. amount of effect

Inactive Publication Date: 2014-02-26
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the currently widely used blasting vibration sensor installation technology has the following shortcomings: (1) Due to the insufficient strength of the bonding material, different measuring points are bonded successively, and the bonding strength is different between each other. , especially in sand medium, the bonding material and the medium will not be bonded, and the sensor is prone to loosening to varying degrees, and valid data cannot be obtained; (2) No matter what kind of adhesive is used, the sensor will be stained, and it must be cleaned Very troublesome; (3) The adhesive needs a certain curing time, which increases the workload of testers

Method used

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  • An explosion vibration sensor installation clamp applicable to soil mediums
  • An explosion vibration sensor installation clamp applicable to soil mediums
  • An explosion vibration sensor installation clamp applicable to soil mediums

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The first step: select the location of the measuring point and remove the surface covering soil. A large amount of covering soil will seriously affect the stability of the entire sensor installation;

[0022] The second step: determine the installation direction, determine the relative direction of the sensor and the explosion source according to the actual test requirements, usually point the X direction of the lower splint 2 to the direction of the explosion source;

[0023] The third step: pass the steel nail through the fixing hole 7, knock it into the soil with a hammer, and fix the lower splint 2;

[0024] Step 4: align the X direction of the blasting vibration sensor a with the X direction of the bottom clamping block, and clamp and fix the blasting vibration sensor a between the upper splint 1 and the lower splint 2 through the screw 5 and the fixed nut 6;

[0025] Step 5: Connect the lead wire of the blasting vibration sensor a to the data recorder, and the vib...

Embodiment 2

[0027] The blasting seismic wave curve tested in the typical field soil medium in this embodiment is as follows: Figure 4~6 shown. This time is a typical expressway pile hole excavation blasting. The nonel nonel micro-differential detonation method is used for detonation. The cut hole is connected by 1 section of nonel detonator, and the peripheral holes are connected by 9 sections of nonel detonator. The total amount is 7.6kg, and the maximum single-stage charge is 4.8kg. The measuring point is arranged at a distance of 5m from the edge of the pile hole, and the pile hole has been excavated to a depth of 10.2m.

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Abstract

The invention discloses an explosion vibration sensor installation clamp applicable to soil mediums. The explosion vibration sensor installation clamp applicable to the soil mediums comprises an upper clamping plate (1) and a lower clamping plate (2). The both ends of the upper clamping plate (1) and the both ends of the lower clamping plate (2) are respectively provided with upper screw holes (3) and lower screw holes (4). The upper screw holes (3) are corresponding to the lower screw holes (4). The upper clamping plate (1) and the lower clamping plate (2) are provided with screw bolts (5). The upper ends of the screw bolts (5) pass through the upper screw holes (3) and the lower ends of the screw bolts pass through the corresponding lower screw holes (4). The both ends of the screw bolts (5) are connected to fixing screw nuts (6) in a screwed mode. The two sides of the lower clamping plate (2) are provided with fixing holes (7). The explosion vibration sensor installation clamp applicable to soil mediums of the invention is simple in structure and convenient to install. A sensor will not easily fall off in an explosion process, and effective data can be obtained. The explosion vibration sensor installation clamp applicable to the soil mediums has a relatively good adaptability, and fouling of the sensor will not occur; the cleaning is convenient; the installation speed is relatively fast and workloads of test personnel are reduced.

Description

technical field [0001] The invention relates to the field of blasting test equipment processing and manufacturing, in particular to a blasting vibration sensor installation fixture. Background technique [0002] In geotechnical engineering, blasting is a common cheap and quick way of excavation, but when rock mass is excavated by blasting, it will produce a lot of harmful effects, among which blasting seismic wave is one of them. The seismic waves produced by blasting will have an adverse effect on the stability of buildings (structures) around the explosion source. In order to solve this phenomenon, vibration testing methods are usually used to monitor the blasting seismic effects on the engineering site to determine the impact range of blasting seismic waves. and change blasting parameters. At present, the method of blasting vibration testing in the engineering field is as follows: select a certain number of measuring points at the test site, usually clean the surface cov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/20
Inventor 肖定军蒲传金苏华友杨宁廖涛管少华
Owner SOUTHWEAT UNIV OF SCI & TECH
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