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Support cleaning device and application method for preventing blast hole collapse in tunnel advance prediction

A technology of advanced forecasting and supporting devices, which is applied in measuring devices, geophysical surveying, seismology, etc., can solve problems such as explosives cannot be placed, increased workload, and impact on results, so as to avoid pollution and non-recyclable problems, and avoid manpower and material resources Consumption, the effect of increasing work efficiency

Active Publication Date: 2019-11-19
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the difference in the nature of the surrounding rock and the disturbance of the rock formation during the drilling process, the drilled blastholes often collapse, which will cause the explosives to be placed in the required depth range, and the excitation point during blasting is too shallow to reach the required depth. The required frequency and energy will affect the results of the experiment
In actual operation, after the blasthole collapses, the blasthole can be protected by re-drilling or using plastic pipes, but re-drilling will increase the workload, and after re-drilling, new collapsed holes may occur, and using The plastic pipe protects the blast hole, and it is inconvenient to pull out when the rock formation is unstable, and it can only be left in it to cause pollution
[0005] To sum up, in the prior art, there is still no effective solution to the problem that the collapse of the blast hole brings inconvenience to the project

Method used

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  • Support cleaning device and application method for preventing blast hole collapse in tunnel advance prediction
  • Support cleaning device and application method for preventing blast hole collapse in tunnel advance prediction
  • Support cleaning device and application method for preventing blast hole collapse in tunnel advance prediction

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Embodiment Construction

[0041] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0042] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0043] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations...

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Abstract

The invention discloses a support cleaning device for preventing collapse of a blasthole in advance tunnel prediction and a use method thereof. The support cleaning device comprises a support device portion for supporting the pressure generated by gravel soil above a blasthole, a rail connection portion and a rock soil cleaning portion. The rock soil cleaning portion arranged between the support device portion and the rail connection portion can slide back and forth between the support device portion and the rail connection portion. The gravel soil in the blasthole is removed by pulling and slipping the rock soil cleaning portion. Therefore, a phenomenon that the depth of the explosive is too shallow due to the collapse of the blasthole when the explosive is placed is avoided; and thus theexperiment is down successfully and conveniently.

Description

technical field [0001] The invention relates to tunnel engineering, in particular to a support cleaning device and a use method used for preventing blast hole collapse in the tunnel's advanced geological prediction. Background technique [0002] As a relatively advanced detection method, TSP (Tunnel Seismic Prediction) advanced prediction technology has been applied in various tunnels or underground caverns in my country's water conservancy, hydropower, railway, highway, coal and other systems. Long, high precision, timely submission of data, economical, etc., especially for planar weak zones intersecting the tunnel axis or at a large angle, such as faults, broken zones, weak interlayers, underground caves (including karst caves) and the interface of strata, etc. The effect is better. [0003] The TSP advanced prediction system uses the characteristics of reflection waves generated by seismic waves in heterogeneous geological bodies to predict the geological conditions in fro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/104G01V1/04
CPCG01V1/04G01V1/104
Inventor 薛翊国柏成浩李术才李广坤苏茂鑫邱道宏李欣屈聪
Owner SHANDONG UNIV
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