A similar test model and method capable of simulating tunnel blasting dust production

By designing a similar test model that includes a monitoring area and a dust-generating area, and using a mortise and tenon structure and a dust spraying device, the problems of similarity and insufficient monitoring in tunnel blasting dust simulation tests were solved, achieving test results with high precision, safety and wide applicability.

CN120160952BActive Publication Date: 2026-01-06SHANDONG UNIV OF SCI & TECH
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Patent Information

Application Number
CN202510377065.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-01-06
Estimated Expiration
2045-03-28

AI Technical Summary

Technical Problem

Existing tunnel blasting dust simulation tests have poor similarity to actual tunnels, limited functionality, and limited monitoring methods, resulting in large test errors.

Method used

A similar test model to simulate tunnel blasting dust was designed, including a monitoring area model and a dust-generating area model. The model is connected by mortise and tenon joints and uses a dust injection device and a spray device. Multiple particulate matter sensors are equipped for accurate monitoring and dust suppressant verification.

Benefits of technology

It improved the similarity and monitoring accuracy of tunnel blasting dust simulation tests, enhanced the safety and applicability of the tests, provided preliminary application basis for dust suppressants, and reduced the workload and error of the tests.

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Abstract

A kind of similarity test model that can simulate tunnel blasting dust production, comprising front and rear monitoring area model and dust production area model.The monitoring area model includes first cylinder transversely arranged and dust monitoring module arranged in the first cylinder, the dust monitoring module includes at least four particulate matter sensors arranged on the top, bottom and two side walls of the first cylinder.The dust production area model includes second cylinder transversely arranged and connected with the rear end of the first cylinder at the front end, the dust production mechanism is arranged in the second cylinder, and the second cylinder is also provided with a spraying device capable of spraying dust suppressant near the end of the first cylinder.The monitoring area model can monitor the dust concentration at different sections and different positions, and the dust is produced by dust spraying device instead of blasting, which has high safety, controllable dust production and good operability.Not only can simulate the dust production law and diffusion law of dust in tunnel, but also can carry out simulation test of dust suppressant, has multiple functions and wide applicability.
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