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Inverted triangle cutting process for rapid excavation of well lane

An inverted triangle and inverted triangle technology, which is applied in ground mining, earthwork drilling, slitting machinery, etc., can solve the problems of low utilization rate of blastholes, difficulty in forming roadways, and small cutting footage, etc., to improve the utilization rate of blastholes , The effect of improving the excavation platform efficiency and increasing the excavation speed

Inactive Publication Date: 2012-01-04
JCHX MINING MANAGEMENT
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  • Claims
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Problems solved by technology

[0003] In order to solve the problems of the traditional cutting method such as small cutting footage, difficult formation of tunnels with broken surrounding rocks, and low utilization rate of blastholes, the present invention provides a rapid tunneling inverted triangle cutting process

Method used

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  • Inverted triangle cutting process for rapid excavation of well lane
  • Inverted triangle cutting process for rapid excavation of well lane
  • Inverted triangle cutting process for rapid excavation of well lane

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Embodiment 1

[0030] A kind of inverted triangular cutting process for rapid excavation of shafts, comprising the following steps:

[0031] Step a, such as Figure 4 As shown, three empty holes No. 1, No. 2, and No. 3 are arranged on the working surface, of which, two of the three empty holes No. 1 and No. 2 are arranged horizontally, and the other empty hole No. 3 is arranged horizontally The two empty holes No. 1 and No. 2 are arranged below, so that the three empty holes No. 1, 2, and No. 3 are distributed in an inverted triangle shape as shown by the dotted line h, and the hole distance between No. 1 empty hole and No. 2 empty hole, 1 The hole distance between No. 3 empty hole and No. 3 empty hole, and the hole distance between No. 3 empty hole and No. 2 empty hole are both 245mm, and the diameter of the empty hole is 90mm;

[0032] Step b, the diameter of the hollow hole in the level roadway excavation of the rock drilling jumbo is 90mm, and the diameter of the cut hole is 48mm. fig...

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Abstract

The invention relates to an inverted triangle cutting process for rapid excavation of a well lane. The process comprises the following steps of: a, arranging three empty holes in an operation face, wherein two of the three empty holes are horizontally arranged and the other empty hole is arranged below the two empty holes to ensure that the three empty holes are distributed like an inverted triangle and the hole pitches between two adjacent empty holes in the three empty holes are equal; b, selecting a hole pitch between a one-section cutting hole and the empty holes according to a relation curve of the hole pitches and the diameters of the empty holes; c, arranging the one-section cutting hole according to the hole pitch between the one-section cutting hole and the empty holes, provided in the step b; d, arranging three two-section cutting holes, wherein two of the three two-section cutting holes are horizontally arranged and the other two-section cutting hole is arranged above the two two-section cutting holes to ensure that the three two-section cutting holes are distributed like a regular triangle which is in opposition to the inverted triangle formed by the three empty holes, provided by the step a, and the hole pitches between the three two-section cutting holes and the one-section cutting hole are equal.

Description

technical field [0001] The invention relates to a non-coal mine rock drilling jumbo, an inverted triangular cutting process for rapid excavation of shaft lanes, which is suitable for using the rock drilling jumbo in the construction and production process of non-coal mines to carry out development, mining, cutting and other level roadway excavation. construction. Background technique [0002] The cutting hole determines the excavation footage of the tunnel. The traditional tunneling methods include the two-hole barrel-shaped cutting method and the four-hole barrel-shaped cutting method. These cutting methods have small cutting footage in the surrounding rock. 1. It is difficult to form the roadway with broken surrounding rock, and the utilization rate of blastholes is 75-80%, and the utilization rate is low. The monthly footage of traditional single-head excavation is 120-150m, and the monthly footage of single-unit multi-face excavation is 250-300m, and the drilling effici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C41/16E21C27/02
Inventor 王先成刘文成谭金胜赵守昌韩永全贾计
Owner JCHX MINING MANAGEMENT
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