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Method for sealing and plugging hole bottom of vertical deep hole through hole

A vertical deep hole and hole plugging technology, which is applied in earthwork drilling, sealing/isolation, wellbore/well components, etc., can solve the problem that blasting charges cannot be carried out according to design parameters, and the surrounding space is large, which affects the blasting effect and other issues, to achieve significant economic effects, good effects, and high success rate

Active Publication Date: 2016-03-09
BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the bottom of the hole is located at the bottom of the stope, and the surrounding space is relatively large, fast and effective sealing of the bottom of the through hole becomes a key link; if the sealing effect of the hole bottom cannot be guaranteed, it will cause the charge of the blast hole to be unable to be implemented according to the design parameters, seriously Affect the blasting effect

Method used

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  • Method for sealing and plugging hole bottom of vertical deep hole through hole
  • Method for sealing and plugging hole bottom of vertical deep hole through hole
  • Method for sealing and plugging hole bottom of vertical deep hole through hole

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and specific embodiment the present invention is further described:

[0019] Such as Figure 1 to Figure 4 As shown, a method for plugging the bottom of a vertical deep hole through hole comprises the following steps:

[0020] Step 1: Bolt the traction wire whose length is greater than the depth of the through hole to the center of the pallet;

[0021] Step 2: Put the supporting plate vertically and pull the steel wire down from the upper space along the through hole;

[0022] Step 3: Continue to lower the steel wire, the pallet slides from its own weight to the bottom of the through hole until it slips out of the through hole and enters the bottom space, the pallet will turn to a horizontal or nearly horizontal state due to its self-weight balance;

[0023] Step 4: Tighten the traction steel wire upward until the supporting plate is clamped to the bottom of the through hole, and fix the traction steel wire in a stable po...

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Abstract

The invention belongs to the technical field of mine blasting, particularly relates to a method for sealing and plugging the hole bottom of a vertical deep hole through hole, and aims at providing a convenient fast and effective method for sealing and plugging the hole bottom of the vertical deep hole through hole so as to ensure the blasting breakdown quality. The method has the advantages that the operation is simple, fast and effective; and the economic effect is obvious. The method is an effective hole bottom sealing and plugging method aiming at the vertical deep hole through hole. The method is applied to the exploitation process of a mine with the ore deposit lithology being biotite granite; the hole bottom sealing and plugging effect is good; and the success rate is high.

Description

technical field [0001] The invention belongs to the technical field of mine blasting, and in particular relates to a method for plugging the bottom of a vertical deep hole through hole. Background technique [0002] At present, in the underground mining of thick ore bodies, the mining method of horizontal layered filling is mostly used, which has low mining efficiency and high cost. In order to solve the problem of mining efficiency, deep hole blasting and falling ore mining has become an effective way. The bottom of the deep hole blasting needs to be opened to form the blasting compensation space and the ore falling space, and the upper part needs to be drilled for construction space, so the upper and lower spaces may be opened up during the vertical deep hole construction to form a through hole. Since the bottom of the hole is located at the bottom of the stope, and the surrounding space is relatively large, fast and effective sealing of the bottom of the through hole beco...

Claims

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Application Information

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IPC IPC(8): E21B33/13
CPCE21B33/13
Inventor 寇子顺李羽张德全
Owner BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
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