CN203869661U - Hanging pillar central position locating device used for overhead contact line equipment construction in tunnel - Google Patents

Hanging pillar central position locating device used for overhead contact line equipment construction in tunnel Download PDF

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Publication number
CN203869661U
CN203869661U CN201420289302.0U CN201420289302U CN203869661U CN 203869661 U CN203869661 U CN 203869661U CN 201420289302 U CN201420289302 U CN 201420289302U CN 203869661 U CN203869661 U CN 203869661U
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China
Prior art keywords
davit
tunnel
locating device
center
construction
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CN201420289302.0U
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Chinese (zh)
Inventor
谢琪峰
王志义
李鲁杰
刘志富
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Electrification Engineering Co Ltd Of Cr 20 G
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Electrification Engineering Co Ltd Of Cr 20 G
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Abstract

The utility model discloses a hanging pillar central position locating device used for overhead contact line equipment construction in a tunnel. The device comprises a laser plumb aligner which is used for locating the central position of a hanging pillar in a tunnel hole and a total station instrument which is used for measuring the central position of the hanging pillar. The laser plumb aligner is horizontally installed on a bracket which is erected on the foundation of the tunnel hole. Upper pointing light beams emitted by the laser plumb aligner are aligned with the central position of the hanging pillar. Prisms of the total station instrument are distributed on projection points of lower pointing light beams which are emitted by the laser plumb aligner and projected on the foundation. The upper pointing light beams and the lower pointing light beams are coaxially distributed. The prisms are horizontally distributed. The hanging pillar central position locating device is simple in structure, reasonable in design, simple in use and operation and great in use effect so that problems of a conventional construction measurement method for the central position of the hanging pillar of being inconvenient in use and operation, large in workload, relatively high in measurement difficulty and relatively large in measurement error are solved.

Description

Contact network in tunnel is davit center locating device for construction
Technical field
The utility model belongs to contact network in tunnel technical field of construction, especially relates to a kind of contact network in tunnel construction davit center locating device.
Background technology
Electrified railway tunnels construction comprises that construction survey, punching, anchor are planted and the key link such as installation.Affected by landform in tunnel, environment, crossed construction, light etc., in tunnel the more difficult accurate location of construction survey, add in tunnel overlap many, thereby in tunnel, the workload of measurement and positioning is very large.And construction survey is key and the foundation of constructing tunnel, if can not accurately settle at one go, will seriously restrict subsequent handling punching, anchor is planted and installs, most important to constructing tunnel quality, once go wrong, will cause anchor plant wrong and install difficult.The various bars of imbedding in tunnel can not be transferred to again, cause the serious waste of material and do over again more greatly.Therefore, construction survey work in tunnel has been proposed to strict requirement, can not occur a bit mistake.It is to be all manually main that traditional constructing tunnel is measured, the survey instrument adopting comprises steel tape 1-5, surveyor's staff, bamboo pole, line pendant, marking pen etc., there is no special-purpose construction survey instrument, practical operation inconvenience, and construction survey is affected by human factors larger, measurement accuracy cannot be held, thereby control survey error well.
Contact net is in electric railway, along rail overhead "the" shape, sets up, and gets the high voltage transmission line of stream for pantograph.Contact net is the main truss of railway electrification project, is the transmission line of electricity of the downline overhead special shape to electric locomotive power supply of setting up, and it is comprised of contact suspension, supportive device, locating device, pillar and basis.Contact net is suspended in tunnel by davit, need measure according to line in tunnel position of center line the position of contact network in tunnel suspender, the i.e. center of davit.As shown in Figure 1, while adopting traditional construction survey method to determine the center of davit, first with the line pendant 1-2 having tied up on bamboo pole 1-1, hang out the center of davit, with the marking pen on bamboo pole 1-1, draw again the center of the upper davit in top, tunnel, afterwards according to the center of davit, make davit chassis template, and carry out the drilling operation of davit chassis bolt 1-3, davit chassis is fixed on the top board of Tunnel 1-4 by a plurality of bolt 1-3.When the center of hung out davit is measured, adopt steel tape 1-5 to measure.Determine after the spiro keyhole position on davit chassis, because davit chassis itself and cylinder exist angle, therefore punching requires vertical perforating, guarantee the accurate spacing of pitch-row.Because of measured deviation, anchor, plant the reasons such as deviation, alignment error and material, all may cause davit center deviation excessive, hang and post center deviation excessive be easy to cause do over again and block of bow collector of electric locomotive and the situation such as adjacent line insulation distance is inadequate, thereby accurately determine that the center of davit is a crucial step.While adopting above-mentioned traditional construction survey method to determine the center of davit, measuring error is mainly due to operating personnel's fatiguability in measuring process, the varnish stain inaccurate (occurring deviation thereby can not get to assigned address) of buying oil of marking, bamboo pole is long easily to bend afterwards, in tunnel, light is bad, excessive because painting point, paint causes cannot see the factors such as monumented point too much or very little, as there is the situation that monumented point can not find, survey crew should be mended survey in time, and the air that in tunnel, crossed construction brings is muddy, machinery exhaust emissions and various dust and noise very easily bring many difficulties to survey crew, survey crew can be felt anoxic in air, people's thinking slows down, induce reaction blunt, directly have influence on accuracy and the reliability of measurement data, easily cause the illusion of survey crew, add the muddy collimation error that secretly causes of glazed thread, survey crew is difficult to find a fixing object of reference, has increased the difficulty of measuring, and the tunnel of particularly growing up is even more serious.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of contact network in tunnel construction davit center locating device is provided, its simple in structure, reasonable in design and use easy and simple to handle, result of use good, can solve use operation inconvenience, workload that the traditional construction survey method of davit center exists large, measure the problems such as difficulty is higher, measuring error is larger.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of contact network in tunnel davit center locating device for construction, it is characterized in that: comprise the laser plummet that the center of davit in Tunnel is positioned and the total powerstation that the center of described davit is measured, described laser plummet level is installed on support, and described support is set up on the ground in Tunnel; The upper center to davit in a beam alignment Tunnel that described laser plummet sends, the prism of described total powerstation is laid on reference point, described reference point be laser plummet send lower to a light beam incident point on described ground, describedly upper a light beam is to coaxial laying to a light beam down with described, described prism is level and lays.
Above-mentioned contact network in tunnel davit center locating device for construction, is characterized in that: described laser plummet is DJZ2 laser plummet.
Above-mentioned contact network in tunnel davit center locating device for construction, is characterized in that: described support is tripod.
Above-mentioned contact network in tunnel davit center locating device for construction, it is characterized in that: also comprise the tower wagon that can move forward and backward in Tunnel and supply the center of described davit to carry out the construction survey librarian use of mark, described tower wagon is positioned at left side or the right side of described support.
Above-mentioned contact network in tunnel davit center locating device for construction, is characterized in that: described prism is positioned at described support below.
Above-mentioned contact network in tunnel is davit center locating device for construction, it is characterized in that: described total powerstation props up to be located on described ground and it is positioned at prism front side.
Above-mentioned contact network in tunnel davit center locating device for construction, is characterized in that: also comprise the hand-held holding rod by described construction survey personnel, the top of described holding rod is provided with marker pen.
Above-mentioned contact network in tunnel davit center locating device for construction, is characterized in that: described holding rod is that straight-bar and its length are less than 1m.
Above-mentioned contact network in tunnel davit center locating device for construction, is characterized in that: described holding rod is metal tube or plastic conduit.
The utility model compared with prior art has the following advantages:
1, simple in structure, reasonable in design and input cost is lower.
2, use easy and simple to handle and install and lay conveniently.
3, stable work in work, anti-dust performance is good.
4, total powerstation, without frequent movement, can be realized the range finding demand of a plurality of positions.
5, result of use is good and measuring error is little, measurement result is accurate, can effectively solve use operation inconvenience, workload that traditional construction survey method exists large, measure the problems such as difficulty is higher, measuring error is larger.
In sum, the utility model simple in structure, reasonable in design and use easy and simple to handle, result of use good, can effectively solve use operation inconvenience, workload that the traditional construction survey method of davit center exists large, measure the problems such as difficulty is higher, measuring error is larger.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Use state reference map when Fig. 1 determines davit center for the traditional construction survey method of employing.
Fig. 2 is use state reference map of the present utility model.
Description of reference numerals:
1-1-bamboo pole; 1-2-line pendant; 1-3-bolt;
1-4-Tunnel; 1-5-steel tape; 2-laser plummet;
3-tripod; 4-prism; 5-railroad track;
6-tower wagon; 7-holding rod.
Embodiment
As shown in Figure 2, the utility model comprises the laser plummet 2 that the center of davit in Tunnel 1-4 is positioned and the total powerstation that the center of described davit is measured, described laser plummet 2 levels are installed on support, and described support is set up on the ground in Tunnel 1-4.The upper center to davit in a beam alignment Tunnel 1-4 that described laser plummet 2 sends, the prism 4 of described total powerstation is laid on reference point, described reference point be laser plummet 2 send lower to a light beam incident point on described ground, describedly upper a light beam is to coaxial laying to a light beam down with described, described prism 4 is level and lays.
During actual use, described upper to a light beam, be the laser beam that laser plummet 2 sends from the bottom to top, described lower to a light beam, be the laser beam that laser plummet 2 from top to bottom sends.
In the present embodiment, described laser plummet 2 is DJZ2 laser plummet.
Described upper to a light beam laser beam for emitting by the upper accurate telescope that hangs down, its point that aims at the mark (being the center of described davit).Described lower to a light beam for by the lower laser beam that dot system is emitted of laser plummet 2, and utilize this laser beam alignment fiducials point.In the present embodiment, prism 4 is laid on described reference point, that is to say, described reference point is the installation position point of prism 4, be also laser plummet 2 send lower to a light beam incident point on described ground.On described ground, be equipped with railroad track 5.
In the present embodiment, described support is tripod 3.
During actual use, described support also can adopt the bracing frame of other type.
Meanwhile, the utility model also comprises the tower wagon 6 that can move forward and backward in Tunnel 1-4 and supply the center of described davit to carry out the construction survey librarian use of mark, and described tower wagon 6 is positioned at left side or the right side of described support.In the present embodiment, described tower wagon 6 is positioned at described support left side.
In the present embodiment, described prism 4 is positioned at described support below.
In the present embodiment, described total powerstation props up to be located on described ground and it is positioned at prism 4 front sides.
In the present embodiment, the utility model also comprises the hand-held holding rod 7 by described construction survey personnel, and the top of described holding rod 7 is provided with marker pen.
Actually add man-hour, described holding rod 7 is less than 1m for straight-bar and its length.
In the present embodiment, described holding rod 7 is metal tube or plastic conduit.
During actual use, first laser plummet 2 is set up, during actual setting up, need adjust by adjusting the level of 3 pairs of laser plummets 2 of tripod, make laser plummet 2 in horizontality, and the upper center to davit described in a beam alignment that laser plummet 2 is sent, meanwhile, set up described total powerstation, and the prism of described total powerstation 4 is laid in to tripod 3 belows, and the lower installation position point to a beam alignment prism 4 that laser plummet 2 is sent; Afterwards, by described total powerstation, directly measure the center of described davit.The center of described davit be described upper to a light beam in Bi Shang incident point, Tunnel 1-4 hole.That is to say, the utility model utilizes laser plummet 2 and described total powerstation just can directly measure the center of described davit, and measurement result is accurate, and deviation is less.After the center of described davit is determined, according to described upper to a light beam incident point on Tunnel 1-4 top board, the described marker pen that the construction survey personnel on tower wagon 6 of standing on just can utilize holding rod 7 and be loaded on holding rod 7 tops directly draws the center of described davit.And the center of described davit can directly calculate the central lines of track of railroad track 5 and the spacing between described davit center after determining.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every any simple modification of above embodiment being done according to the utility model technical spirit, change and equivalent structure change, and all still belong in the protection domain of technical solutions of the utility model.

Claims (9)

1. a contact network in tunnel is constructed with davit center locating device, it is characterized in that: comprise the laser plummet (2) that the center of the interior davit of Tunnel (1-4) is positioned and the total powerstation that the center of described davit is measured, described laser plummet (2) level is installed on support, and described support is set up on the ground in Tunnel (1-4); What described laser plummet (2) sent is upper to a center for the interior davit of beam alignment Tunnel (1-4), the prism of described total powerstation (4) is laid on reference point, described reference point be laser plummet (2) send lower to a light beam incident point on described ground, describedly upper a light beam is to coaxial laying to a light beam down with described, described prism (4) is level and lays.
2. according to contact network in tunnel construction davit center locating device claimed in claim 1, it is characterized in that: described laser plummet (2) is DJZ2 laser plummet.
3. according to the contact network in tunnel construction davit center locating device described in claim 1 or 2, it is characterized in that: described support is tripod (3).
4. according to the contact network in tunnel construction davit center locating device described in claim 1 or 2, it is characterized in that: also comprise the tower wagon (6) that can move forward and backward in Tunnel (1-4) and supply the center of described davit to carry out the construction survey librarian use of mark, described tower wagon (6) is positioned at left side or the right side of described support.
5. according to the contact network in tunnel construction davit center locating device described in claim 1 or 2, it is characterized in that: described prism (4) is positioned at described support below.
6. according to davit center locating device for the contact network in tunnel construction described in claim 1 or 2, it is characterized in that: described total powerstation props up to be located on described ground and it is positioned at prism (4) front side.
7. according to contact network in tunnel construction davit center locating device claimed in claim 4, it is characterized in that: also comprise the hand-held holding rod (7) by described construction survey personnel, the top of described holding rod (7) is provided with marker pen.
8. according to contact network in tunnel claimed in claim 7 davit center locating device for construction, it is characterized in that: described holding rod (7) is less than 1m for straight-bar and its length.
9. according to contact network in tunnel construction davit center locating device claimed in claim 7, it is characterized in that: described holding rod (7) is metal tube or plastic conduit.
CN201420289302.0U 2014-05-31 2014-05-31 Hanging pillar central position locating device used for overhead contact line equipment construction in tunnel Active CN203869661U (en)

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Application Number Priority Date Filing Date Title
CN201420289302.0U CN203869661U (en) 2014-05-31 2014-05-31 Hanging pillar central position locating device used for overhead contact line equipment construction in tunnel

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112013818A (en) * 2020-09-02 2020-12-01 中国铁建电气化局集团第五工程有限公司 Method for measuring and calculating inclination angle of Y-shaped suspension post of contact net in single-line tunnel
CN113276896A (en) * 2021-06-08 2021-08-20 中国铁建电气化局集团有限公司 Intelligent installation equipment for overhead contact system upper structure
CN116379926A (en) * 2023-05-31 2023-07-04 中国铁建电气化局集团第五工程有限公司 Trackless measurement method and system for contact net of circular shield tunnel and electronic equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112013818A (en) * 2020-09-02 2020-12-01 中国铁建电气化局集团第五工程有限公司 Method for measuring and calculating inclination angle of Y-shaped suspension post of contact net in single-line tunnel
CN113276896A (en) * 2021-06-08 2021-08-20 中国铁建电气化局集团有限公司 Intelligent installation equipment for overhead contact system upper structure
CN116379926A (en) * 2023-05-31 2023-07-04 中国铁建电气化局集团第五工程有限公司 Trackless measurement method and system for contact net of circular shield tunnel and electronic equipment
CN116379926B (en) * 2023-05-31 2023-08-25 中国铁建电气化局集团第五工程有限公司 Trackless measurement method and system for contact net of circular shield tunnel and electronic equipment

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