Pay-off device and method

A technology of a wire-laying device and a protection device, which is applied to measuring devices, active optical measuring devices, reference lines/planes/sectors, etc., can solve the problems of low efficiency and heavy measurement and wire-laying tasks, and achieve high efficiency, simple production, and Guarantee the effect of laying-out accuracy requirements

Active Publication Date: 2018-02-13
STATE GRID CORP OF CHINA +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of heavy measuring and setting-out tasks and low efficiency in the prior art

Method used

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  • Pay-off device and method

Examples

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Embodiment 1

[0030] This embodiment provides a pay-off device, such as figure 1 As shown in the figure, it is used to set out the line during the tunnel construction process, that is, according to the design drawings of the tunnel, the designed tunnel is put into the excavation section according to 1:1, and then the construction is carried out according to the released line. The pay-off device in this embodiment includes:

[0031] The first arch 01 has the same outer contour as the target tunnel, where the target tunnel is the actual size of the tunnel set in the drawing, and the first arch 01 is set on the outside of the excavation section. According to the design parameters such as the slope ratio and length of the target tunnel, determine the installation position of the first arch. It is better to set the first arch 01 within the range of not less than 20m from the excavation section, and the preferred value is 30m. It is guaranteed to meet the lay-out requirements and avoid the dama...

Embodiment 2

[0041] This embodiment provides a pay-off method for using the pay-off device in Embodiment 1 to perform a pay-off operation, such as Figure 10 shown, including the following steps:

[0042] S01: Place the first arch 01 at a first distance from the excavation section 02. The first arch 01 is provided with a number of first laser transmitters 03 and first openings 10. It is better to set the first arch 01 within a range of not less than 20m from the excavation section, which can not only ensure that the requirements for laying out lines are met, but also avoid the damaging effects of blasting flying stones. In this embodiment, the first arch 01 is set at a distance of 30m from the excavation section, and is fixed by locking foot anchors 11. Seven first laser transmitters 03 are arranged on the first arch 01, and three are arranged on the top arch. , one arching point on both sides, one on each side wall 100cm away from the bottom plate, the position of the first laser transmi...

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Abstract

The invention provides a pay-off device and method. The pay-off device comprises a first arching and a plurality of first laser transmitters, wherein the first arching has an outer contour which is the same as that of a target tunnel and is arranged at the outer side of an excavation section; the first laser transmitters are arranged on the first arching at intervals and are used for transmittingfirst laser to the excavation section to form a projection of the contour of the target tunnel. The pay-off device provided by the invention is simple to manufacture and measurement pay-off operationis convenient and has small working amount and high efficiency.

Description

technical field [0001] The invention relates to the field of engineering measurement, in particular to a wire pay-off device and method. Background technique [0002] Tunnel construction has the characteristics of narrow working face, poor working conditions, many procedures, and large interference. In particular, safety accidents are prone to occur. Geological exploration must be done in advance, and the location of the opening, branch tunnel, ballast transportation route and tunnel opening must be reasonably selected. method of digging. Setting out the line is to use professional equipment to place the plane of the building on the construction site at a ratio of 1:1 according to the dimensions marked on the general plan and individual building drawings, and then carry out construction according to the released line. Because tunnel excavation is the main construction task of underground engineering, measuring and setting out line is the key to control design parameters suc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C15/00
CPCG01C15/004
Inventor 王兰普吕风英李晋先贾涛颜志恒史文龙李军
Owner STATE GRID CORP OF CHINA
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