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
CN112483109BActive Publication Date: 2022-02-15INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
Publication Date
2022-02-15

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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.
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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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