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Equipment and method for precise positioning drilling at wall of subway tunnel via automatic benchmark leveling

A technology for aligning benchmarks and precise positioning, applied in the field of rail transit, it can solve the problems of low precision, high labor intensity, and dangerous work, and achieve the effect of achieving efficiency.

Pending Publication Date: 2018-11-30
山西伟捷瑞铁路工程有限公司
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AI Technical Summary

Problems solved by technology

[0002] In the later stage of tunnel construction of rail transit, due to the need to install a large number of equipment in the tunnel, such as cables, walkways, water pipes, air pipes, etc., it is necessary to carry out batch drilling operations on the tunnel wall, while the existing drilling methods only use manual planning. Line and manual positioning are drilled sequentially with electric tools
Low efficiency, low precision, poor construction environment, high labor intensity, and dangerous work

Method used

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  • Equipment and method for precise positioning drilling at wall of subway tunnel via automatic benchmark leveling
  • Equipment and method for precise positioning drilling at wall of subway tunnel via automatic benchmark leveling
  • Equipment and method for precise positioning drilling at wall of subway tunnel via automatic benchmark leveling

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Embodiment Construction

[0022] The embodiments will be further described below in conjunction with the accompanying drawings.

[0023] figure 1 As shown, it is the angle change between the horizontal and vertical datum of the tunnel section and the limit of the track, track bed, and running vehicles when the subway tunnel has different curvatures.

[0024] And 4 cable supports, 5 water pipe supports and 6 electrical box supports all need to carry out drilling and fixing on the tunnel wall, the positions of these holes are associated with the horizontal and vertical datums of the tunnel section, therefore, need an automatic alignment datum in A method for precisely positioning and drilling holes in a subway tunnel wall.

[0025] As shown in the figure, the present application provides a device and method for automatically aligning the datum and accurately positioning the borehole on the subway tunnel wall. The device structure includes a rail frame 19 with a gauge of 1435, and a brake device is insta...

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Abstract

The invention provides equipment and a method for precise positioning drilling at the wall of a subway tunnel via automatic benchmark leveling. The equipment is characterized in that an electric PLC (programmable logic controller) control system is used for collecting an inputted displacement sensor signal and an inputted inclination sensor signal, then a hydraulic pump station is controlled to supply oil for different support oil cylinders, and a whole track frame is arranged at the horizontal position of the cross section of the subway tunnel; by inputting the data of a height laser distancemeasuring instrument and a horizontal direction laser distance measuring instrument, the height of the whole track frame can be adjusted; by establishing a horizontal benchmark, a height benchmark and a center benchmark, the working benchmark is provided for a machine frame at the upper part of the track frame and preselected porous formworks which are manufactured according to positioning of tunnel holes; the multiple groups of porous formworks can be moved along slide rails, so that the multiple times of drilling can be continuously performed after one-time positioning of the vehicle frame;because the positioning is automatically completed, the multiple batches of drilling can be continuously performed along the whole length of the track frame after positioning, and the multiple groupsof machine frames are arranged to simultaneously work according to the workload and project progress, the efficiency is doubled after multiple batches of operation.

Description

technical field [0001] The invention is applicable to the technical field of rail transit, and in particular relates to a method for drilling a large number of holes on the inner wall of a subway tunnel. Background technique [0002] In the later stage of tunnel construction of rail transit, due to the need to install a large number of equipment in the tunnel, such as cables, walkways, water pipes, air pipes, etc., it is necessary to carry out batch drilling operations on the tunnel wall, while the existing drilling methods only use manual planning. Lines and manual positioning are drilled sequentially using electric tools. Low efficiency, low precision, poor construction environment, high labor intensity, and dangerous work. [0003] Because the tunnel is limited by certain conditions such as transfer station and urban terrain, the slope inside the tunnel is relatively high and the turning radius is small. Therefore, the base surface of the track in the tunnel and the cent...

Claims

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Application Information

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IPC IPC(8): E21B7/02E21B15/00E21B19/08E21B19/086E21B19/24E21B44/00E21B44/02
CPCE21B7/02E21B7/022E21B15/003E21B19/08E21B19/086E21B19/24E21B44/00E21B44/02
Inventor 王继忠杨卫东
Owner 山西伟捷瑞铁路工程有限公司
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