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Device applicable to TSP (tunnel seismic prediction) blasting hole drilling and method

A blasthole and drilling technology, which is applied to drilling equipment and methods, drill pipes, drill pipes, etc., can solve problems such as normal water injection, blockage of blastholes, and poor quality of shock sources, and achieve convenient parameter measurement and charging. , the effect of suppressing noise interference and improving the quality of the source

Active Publication Date: 2017-01-04
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The data acquisition process of TSP advanced geological prediction is obviously affected by the geological conditions of the tunnel. Due to the falling of rock blocks or the accumulation of silt inside the blasthole, the TSP blasthole often cannot be drilled, the parameters of the TSP blasthole cannot be measured, and the loading of explosives Income is also greatly affected
[0003] At the same time, and because the drill bit withdraws immediately after the blast hole is drilled, and during the drill bit withdrawal process, there will be more particles falling from the blast hole position of the rock mass, which will cause the blockage of the blast hole, so that the normal water injection cannot be performed in the later stage, resulting in The quality of the seismic source is not good, which affects the effect of TSP advanced geological prediction of the entire tunnel, making it impossible to effectively predict many unsafe geological conditions during tunnel excavation

Method used

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  • Device applicable to TSP (tunnel seismic prediction) blasting hole drilling and method
  • Device applicable to TSP (tunnel seismic prediction) blasting hole drilling and method
  • Device applicable to TSP (tunnel seismic prediction) blasting hole drilling and method

Examples

Experimental program
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Effect test

Embodiment 1

[0041] Embodiment 1: a kind of device applicable to TSP blast hole drilling, its structure is as Figure 1-5 shown, including:

[0042] The drilling core rod 1 and the outer sleeve 2, the left side of the drilling core rod 1 is the drilling part 13, the right side is the filling part 14, the drilling part 13 on the left side is detachably connected with the drill bit 4, and the filling part 14 is on the right side. The part 14 is detachably connected with the plug 7, and the plug 7 can be selected as a rubber sleeve. On the outer circumference of the drilled portion 13 , there are external threads including an external thread root 10 and an external thread crest 11 .

[0043] There is a blocking block 12 inside the left end of the outer sleeve 2, and two blocking blocks 12 can be selected. There is a power block 6 outside the right end of the outer sleeve 2 . At the same time, the inside of the outer casing 2 also has an internal thread, specifically, this part of the inter...

Embodiment 2

[0055] Embodiment 2: a kind of device applicable to TSP blast hole drilling, its structure is as Figure 6-7 shown, including:

[0056] The drilling core rod 1 and the outer sleeve 2, the left side of the drilling core rod 1 is the drilling part 13, the right side is the filling part 14, the drilling part 13 on the left side is detachably connected with the drill bit 4, and the filling part 14 is on the right side. The part 14 is detachably connected with the plug 7, and the plug 7 can be selected as a rubber sleeve. On the drilling core rod 1, there is a power clamping block 15.

[0057] There is a blocking block 12 inside the left end of the outer sleeve 2, and two blocking blocks 12 can be selected. There is a power block 6 outside the right end of the outer sleeve 2 . At the same time, the inside of the outer sleeve 2 also has a locking groove 16 , specifically, the locking groove 16 can be divided into a channel portion in the same axis direction as the outer sleeve 2 ...

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Abstract

The invention relates to a device applicable to TSP (tunnel seismic prediction) blasting hole drilling and a method and belongs to the field of technologies related to advanced geological forecast of tunnel earthquakes. The device mainly comprises a drilling core rod and an outer bushing, wherein the drilling core rod comprises a drilling part and a chemical filling part, and the drilling part is detachably connected with a drill bit; the outer bushing is detachably connected with the drilling core rod and located outside the drilling core rod; a stopping block for limiting axial movement of the drilling core rod is arranged at one end of the outer bushing, and a power clamping block for being assembled with a drilling tool is arranged at the other end of the outer bushing. The device can realize an outer support effect on a blasting hole after the TSP blasting hole drilling is finished through a designed brand-novel structure, so that the blasting hole is prevented from being blocked.

Description

technical field [0001] The invention relates to the relevant technical field of tunnel earthquake advance geological prediction, and in particular relates to a device and method suitable for TSP blasthole drilling. Background technique [0002] Today's tunnel geological conditions are complex and diverse, and TSP's advanced geological prediction plays a very important role in the safe excavation of tunnels. The data acquisition process of TSP advanced geological prediction is obviously affected by the geological conditions of the tunnel. Due to the falling of rock blocks or the accumulation of silt inside the blasthole, the TSP blasthole often cannot be drilled, the parameters of the TSP blasthole cannot be measured, and the loading of explosives Income is also greatly affected. [0003] At the same time, and because the drill bit withdraws immediately after the blast hole is drilled, and during the drill bit withdrawal process, there will be more particles falling from the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/00E21B17/00E21B47/04F42D1/08
CPCE21B7/00E21B17/00E21B47/04F42D1/08
Inventor 苏茂鑫夏腾李术才薛翊国邱道宏张开
Owner SHANDONG UNIV
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