A device and method for unwinding

A technology of a wire-laying device and a protection device, which is applied in the directions of 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 manufacture, Simple operation effect

Active Publication Date: 2020-06-26
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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  • A device and method for unwinding
  • A device and method for unwinding
  • A device and method for unwinding

Examples

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Comparison scheme
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Embodiment 1

[0030] This embodiment provides a kind of pay-off device, such as figure 1 As shown, 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 placed on the excavation section at a ratio of 1:1, and then the construction is carried out according to the released line. The pay-off device in the present embodiment comprises:

[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 drawings, and the first arch 01 is set outside the excavation section. According to the design parameters requirements such as slope ratio and length of the target tunnel, the installation position of the first arch frame is determined. It is better to set the first arch frame 01 within a range of not less than 20m from the excavation section, and the preferred value is 30m, so that both Guaranteed to meet the requirements o...

Embodiment 2

[0041] This embodiment provides a kind of pay-off method, is used for using the pay-off device in embodiment 1 to carry out the 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, and the first arch 01 is provided with several first laser emitters 03 and first openings 10. It is better to arrange the first arch 01 not less than 20m away from the excavation section, so as to not only meet the requirements for setting out wires, but also avoid the destructive influence of blasting flying rocks. In this embodiment, the first arch 01 is set at a distance of 30m from the excavation section, and is fixed by locking foot bolts 11. Seven first laser emitters 03 are arranged on the first arch 01, and three are arranged on the top arch. , one arching point is arranged on both sides, one side wall is arranged 100cm away from the bottom plate, and the position of the first la...

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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 surveying, in particular to a wire releasing device and method. Background technique [0002] Tunnel construction has the characteristics of narrow working face, poor working conditions, many procedures, and large interference. method of digging. Laying out is to use professional instruments 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 lines. Because tunnel excavation is the main construction task of underground engineering, and measuring and setting out is the key to control design parameters such as tunnel excavation section size, slope ratio and direction, and is an important link in tunnel excavation quality control. [0003] At present, total stations are mainly used for tunnel excavation measurement and setting out. T...

Claims

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Application Information

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Patent Type & Authority Patents(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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