Intelligent grouting support method for wall over-excavated tunnel
A technology for tunnels and walls, applied in tunnels, tunnel linings, and earth-moving drilling, etc., can solve the problems of low surface flatness and long process time.
Active Publication Date: 2020-10-27
HARBIN INST OF TECH
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[0005] The purpose of this invention is to propose an intelligent shotcrete support method for an over-excavated tunnel on the wall surface to solve the surface flatness existing in the existing tunnel shotcrete support technology Technical problems of low cost and long process time
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[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0032] An intelligent shotcrete support method for an over-excavated tunnel on the wall, the method comprising the following steps:
[0033] Step 1. Use the total station to locate the wet spray trolley, obtain the spatial relationship between the wet spray trolley and the tunnel, and complete the intelligent positioning of the wet spray trolley;
[0034] Step 2: Carry out the original scanning of the contour of the tunnel annulus to obtain the scanning contour,...
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The invention provides an intelligent grouting support method for a wall over-excavated tunnel, and belongs to the technical field of tunnel construction. The method comprises the following steps thatS1, a total station is used for positioning a wet spraying trolley, the spatial relationship between the wet spraying trolley and the tunnel is acquired, and intelligent positioning work of the wet spraying trolley is completed; S2, a pit generated by over-excavation is identified, motion planning is carried out on a wet spraying manipulator, and an original layer pit repairing operation is performed; S3, a plurality of rows of arc steel arch frames arranged in parallel are installed on a rock surface; S4, contour scanning is carried out on the wall on which the steel arch frames are mounted,spraying blocks are divided and spraying points are determined, and the coordinate information of the spraying points and the volume information of the spraying blocks are extracted; and S5, the wetspraying manipulator is subjected to motion planning, and base layer supporting, steel arch frame layer supporting and surface layer supporting are sequentially carried out. According to the method, the problem of low wall flatness caused by over-excavation of the wall for the grouting support operation is solved, and the automatic operation of the tunnel grouting support is realized.
Description
technical field [0001] The invention relates to an intelligent grouting support method based on an over-excavation tunnel on the wall, and belongs to the technical field of tunnel construction. Background technique [0002] At present, most of the tunnel shotcrete support operations are manually controlled by the shotcrete robot arm. The working environment is extremely harsh, the working conditions are poor, and the process takes a long time, which seriously endangers the health of the workers. The poor completion quality cannot meet the high efficiency of tunnel support, High flatness requirements. [0003] Due to the existence of over-excavated pits of different depths in the over-excavated tunnel on the wall, it is difficult for workers to accurately predict with the naked eye, causing great difficulties for shotcrete support and making it even more difficult to meet the flatness requirements. [0004] Patent 201910567117.0 provides a spraying support method for an inte...
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IPC IPC(8): E21D11/10E21D11/18E21F17/18G01B11/24
CPCE21D11/102E21D11/105E21D11/18E21F17/18G01B11/24
Inventor 刘刚峰孙宪超李长乐张学贺刘玉斌樊继壮赵杰
Owner HARBIN INST OF TECH