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Rock-breaking method of cutter head based on space-time arrangement of oblique high-pressure water jet

A technology of high-pressure water jet and oblique cutting angle, which is applied in the direction of earth drilling, mining equipment, tunnels, etc., to achieve the effects of low energy consumption, improved crushing efficiency, and reduced mechanical wear

Active Publication Date: 2022-02-15
INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

At present, most of the existing high-pressure water jet assisted rock breaking methods are vertical jet grooving, and there is still room for improvement in rock breaking ability and rock ridge removal

Method used

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  • Rock-breaking method of cutter head based on space-time arrangement of oblique high-pressure water jet
  • Rock-breaking method of cutter head based on space-time arrangement of oblique high-pressure water jet
  • Rock-breaking method of cutter head based on space-time arrangement of oblique high-pressure water jet

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Embodiment Construction

[0048] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings, but they do not constitute a limitation to the present invention, and are only examples. At the same time, the advantages of the present invention are clearer and easier to understand through the description.

[0049] Referring to the accompanying drawings, it can be seen that the proposed rock-breaking method based on the cutter head arranged in time and space with the oblique angle high-pressure water jet is as follows: Figure 9 shown, including the following steps,

[0050] Step 1: high-pressure water jet beveling angle; use the high-pressure water jet sprayed by the No. 1 high-pressure water nozzle 1 in the cutterhead 9 based on the beveling angle high-pressure water jet spatio-temporal arrangement to cut grooves along a certain inclination angle on the rock mass material, Form the first inclined water cutting groove 6, make the local rock b...

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Abstract

The invention discloses a rock-breaking method based on a cutter head arranged in time and space with an oblique angle high-pressure water jet. It includes the following steps: step 1: high-pressure water jet oblique cutting; step 2: mechanical hob rolling to divide the rock mass; step 3: high-pressure water jet to divide the trapezoidal boss area; step 4: scraper cutting to remove the residual rock mass. The invention has the advantages of reducing the application ratio of mechanical energy, improving the crushing efficiency of rocks, effectively reducing the mechanical wear of cutters, and reducing the operating temperature of the working face.

Description

technical field [0001] The invention relates to the field of tunnels and underground engineering, in particular to the application of high-pressure water jet rock-breaking technology in the field of TBM tunnel construction, and more specifically, it is a rock-breaking method based on a cutter head arranged in time and space with oblique high-pressure water jets. Background technique [0002] Tunnel boring machine (TBM) has excellent features such as safety, environmental protection, and high efficiency, and is widely used in many tunnel construction projects such as hydraulic tunnels, mine roadways, traffic tunnels, and pipeline defense. However, since the development of TBM, it has changed from the traditional hand-held, mechanical, closed-chest and the current intelligent control integrated TBM equipment. The rock-breaking method of its mechanical hob rolling and crushing rock has not undergone fundamental changes. The original TBM mechanical cutter breaks the rock, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/087E21D9/06
CPCE21D9/087E21D9/0642
Inventor 徐福通周辉卢景景张传庆胡大伟马东东马啸
Owner INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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