Full-section laser tunneling process method adopting laser curvilinear motion
A technology of curved movement and process method, which is applied in the direction of earth drilling, mining equipment, mining equipment, etc., and can solve problems such as lack of drilling technology
Inactive Publication Date: 2020-12-18
CHINA UNIV OF GEOSCIENCES (WUHAN)
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Problems solved by technology
[0002] Due to its high efficiency, low pollution, and ease of automation, laser drilling has become a research hotspot in the field of drilling. However, due to the development of high-power lasers, it will take time to apply it to actual adit or tunnel excavation. Therefore, the corresponding drilling process is more advanced. is lacking
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[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0028] Please refer to figure 1 , the embodiment of the present invention provides a full-face laser excavation process method with laser curvilinear motion, including high-power laser beam cutting out arched trajectory 1 along the wall of the tunnel, laser drill bit spiral motion melting and gasification rock trajectory 2 and straight trajectory 3Remove the rock to realize the excavation or tunneling.
[0029] When the laser drilling machine is carrying out full-face excavation of adit or tunnel, the laser drill emits high-power laser, which can instantly melt the gasified rock, so that the spiral movement of the laser drill can fully melt the gasified rock to form an arc surface, and then under the arc surface The linear motion removes the rock and co...
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The invention provides a concentric circle type laser drilling and reaming process method which is applied to laser drilling machine equipment. The method comprises the steps that after a laser hole is formed through laser fixed-point melting and gasification, a laser drill bit is made to do concentric circle motion around the laser hole by means of the motion flexibility of the laser drill bit, the concentric circle distance and the laser scanning speed are reasonably determined according to the rock stratum characteristics, the laser spot size, the laser power density and the like, and the laser hole is gradually expanded. A laser drilling machine comprises a laser device, a laser head motion control device, a gas circulation system and related auxiliary devices. The laser drill bit is installed on the motion control device and can freely move in the spatial position and posture. A mechanical arm or a sliding table is installed on a movable base with the adjustable height. Accordingto the concentric circle type reaming method, the problem that the diameter of a drilled hole is too small due to the fact that a rock stratum is irradiated by laser at a fixed point is solved, and the diameter of the drilled hole is expanded through the method so that the diameter of the drilled hole can reach the borehole diameter needed by well drilling.
Description
technical field [0001] The invention relates to the technical field of laser excavation technology, in particular to a full-section laser excavation process method in which laser curves move. Background technique [0002] Due to its high efficiency, low pollution, and ease of automation, laser drilling has become a research hotspot in the field of drilling. However, due to the development of high-power lasers, it will take time to apply it to actual adit or tunnel excavation. Therefore, the corresponding drilling process is more advanced. is lacking. Here we provide a full-face laser excavation process method with laser curvilinear motion, which can make full use of the flexibility and rapidity of the complex trajectory of the laser drilling machine, without over-excavation and under-excavation, and the excavation outline is clear, which can greatly improve the Improve the rock and soil removal rate of the excavation face. Contents of the invention [0003] The present i...
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IPC IPC(8): E21D9/11E21D9/10E21F17/00
CPCE21D9/1073E21D9/11E21F17/00
Inventor 文国军吴玲玲王玉丹官东林罗耀坤
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)