CN110220496A - A kind of biprism head device and measurement method measuring cable elevation and mileage - Google Patents
A kind of biprism head device and measurement method measuring cable elevation and mileage Download PDFInfo
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- CN110220496A CN110220496A CN201910483961.5A CN201910483961A CN110220496A CN 110220496 A CN110220496 A CN 110220496A CN 201910483961 A CN201910483961 A CN 201910483961A CN 110220496 A CN110220496 A CN 110220496A
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- 238000000691 measurement method Methods 0.000 title claims abstract description 11
- 238000005259 measurement Methods 0.000 claims description 32
- 238000013461 design Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 abstract description 16
- 238000009434 installation Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 9
- 230000008901 benefit Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C3/00—Measuring distances in line of sight; Optical rangefinders
- G01C3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C3/00—Measuring distances in line of sight; Optical rangefinders
- G01C3/26—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with fixed angles and a base of variable length, at, near, or formed by the object
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The present invention provides a kind of biprism head device and measurement method for measuring cable elevation and mileage, it is characterized by comprising cable clamps and prism head, cable clamp is equipped with cable trough, cable is placed in cable trough, cable clamp passes through attachment device clamping line cable, cable clamp upper surface is equipped with the first prism head, and cable clamp lower surface is equipped with the second prism head, and the first prism head and the second prism head are in the same plane.The beneficial effects of the present invention are: structure is simple, it is easy to operate, can bridge cable to different height, different-diameter and other building line cables carry out the later period elevation, mileage monitoring, the correct degree of Installation Elevation, mileage can be checked simultaneously, have a wide range of application, it is practical, it is suitble to promote and apply.
Description
Technical field
The invention belongs to technical field of building construction, more particularly, to a kind of biprism head for measuring cable elevation and mileage
Device and measurement method.
Background technique
With China's rapid development of economy, improved day by day, the traffic row developed for adaptation Modern High-Speed of building facility
Industry, bridge be also extended to across mountain stream, unfavorable geology or meet other traffic need and set up make passage more easily build
Build object.The construction of bridge not only facilitates and improves Regional Road Network, promotes regional economy social development, and large bridge can be one
Determine lifting region image in degree, facilitates two sides resident trip.
Cable is the general designation of optical cable, cable, pipeline and other items.There are many uses of the cable, is mainly used for control installation, connects
The multiple actions such as connect equipment, transmit electric power.During bridge construction, the measurement of cable elevation and mileage is a crucial school
Core and inspection process.
In bridge construction, the suspension cable cable faced is after sunpender applies counterweight, and field monitoring data precision is not high, by outer
The influence of portion's environment and human factor is heavier, more in conjunction with in-site measurement multifactor impact, causes real time monitoring excessively rough.It passes
The measurement of the cable elevation and mileage of system is cooperated using small prism and total station control, and traditional measurement method is unable to reach specification
Defined accuracy and accuracy.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of device and methods for measuring cable elevation and mileage；Solve catenary line
For cable after sunpender applies counterweight, field monitoring data precision is not high, and heavier situation is influenced by external environment, human factor,
Working efficiency is not only increased, while improving accuracy, has saved double ribs of a kind of the measurement cable elevation and mileage of time
Lens assembly and measurement method.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of pair of measurement cable elevation and mileage
Rib lens assembly, including cable clamp, the cable clamp include the first fixture and the second fixture, first fixture and described
Second fixture is in the form of a column body, and first fixture lower surface is equipped with the first cable trough, and second fixture upper surface is equipped with the
The equal semicircular in shape in section of two cable troughs, the section of first cable trough and second cable trough, cable are placed in described
In one cable trough and second cable trough, first fixture and second fixture are flexibly connected and clamp the cable, institute
The first fixture upper surface is stated equipped with the first prism head, second fixture lower surface is equipped with the second prism head, first prism
Head and the second prism head are in the same plane.
Further, first fixture and the first prism head, second fixture and the second prism head are equal
It is connected by connecting rod.
Further, first fixture is connected with second fixture one end by attachment device, and the other end passes through lock
Tight device connection.
Further, the attachment device include the first hinge, the second hinge and connecting shaft, first hinge with it is described
Second hinge junction is equipped with axle sleeve, the axle sleeve be it is multiple, the axle sleeve is disposed alternately at first hinge and described the
In two hinges, first hinge and the second page piece consistency from top to bottom, the axle sleeve intersect alignment, and the connecting shaft is placed in institute
It states in axle sleeve, first hinge and second hinge are rotated along the connecting shaft.
Further, the locking device includes lock sheet and tight locking button, and the lock sheet is placed on first fixture,
The locking is buckled on second fixture, and the tight locking button is equipped with retaining ring, and the lock sheet is placed in the retaining ring
It is interior.
Further, anti-skid device is equipped in first cable trough and second cable trough.
Further, the connecting rod is equipped with telescopic device, and the telescopic device includes outer sleeve and telescopic rod, described
Telescopic rod bottom is equipped with snak link, and the outer sleeve is equipped with open-work, and the telescopic rod bottom is placed in inside the outer sleeve, institute
State open-work be it is multiple, the open-work is evenly distributed on the outer sleeve, the snak link penetrate the open-work.
Further, the present invention provides a kind of measurement side using measurement cable elevation and the biprism head device of mileage
Method includes the following steps,
S1: being placed in measured position for biprism head device, passes through the first prism head described in total station observation and described
Two prism heads calculate practical mileage numerical value；
S2: the biprism head device is adjusted to repeatedly at design mileage according to the practical mileage numerical value；
S3: the first prism head and the second prism head are adjusted to the design mileage, observation described first
Prism head and the second prism head, respectively read position the first prism head height number of passes value and second prism
Head height number of passes value；
S4: the practical elevation numerical value of the cable centerline is calculated by formula；
S5: the cable is adjusted at design altitude repeatedly according to the cable centerline practical elevation numerical value.
Further, further include setting station before step S1, the total station is set up in survey station point, adjust described complete
It stands the parameters of instrument.
Further, formula is H=(H in the step S41+H2)/2, wherein H1For the first prism head height number of passes
Value；H2For the second prism head height number of passes value, H is the practical elevation numerical value of the cable centerline.
The advantages and positive effects of the present invention are:
1, biprism head apparatus structure of the invention is simple, easy to operate, can be to the bridge of different height, different-diameter
Cable and other building line cables carry out the monitoring of the elevation, mileage in later period, at the same can correct degree to Installation Elevation, mileage into
Row is checked, and is had a wide range of application, practical, is suitble to promote and apply.
2, the present invention is precisely accomplished elevation and mileage at the every place's sunpender extension counterweight of cable by biprism head device, to height
Cheng Jinhang is averaged evaluation, carries out substitution ratio pair to mileage, finds the deviation data that position to be measured is directed to center accurately, carries out asking flat
Mean value obtains data, and accuracy is high, time saving and energy saving.Compared with traditional monitoring, save manually in each point measurement and repetition measurement flower
The time that the time taken and mileage monitoring measuring tape calculate, avoid factors elevation caused by same measurement point such as environment, artificial
The larger situation of error, mileage error, environmental error, personal error, while solving traditional monitoring data not in very big level
Accurate problem, while the subsequent artefacts' loss for needing to carry out when also eliminating measuring tape, round-trip repetition measurement, not only save manpower also
The duration is shortened, fund has been saved, and construction quality has obtained the affirmative of management of engineering construction each side, has achieved good economy
Benefit and social benefit.
3, cable clamp is designed to locking type by the present invention, by the cooperation of attachment device and locking device, realizes first
The folding and fixation of fixture and the second fixture, the cable measurement of applicable plurality of specifications, by the way that anti-skidding dress is arranged in cable trough
It sets, it is possible to increase the frictional force of cable and cable trough is conducive to fixed cable, is conducive to the measurement essence for improving cable elevation and mileage
Degree, is provided with telescopic device in connecting rod, and usable and a variety of situations, use is more flexible, applied widely, utilization rate
Height, it is practical.Using measurement method of the invention, measurement error is small, securely and reliably, improves work efficiency.
Detailed description of the invention
Fig. 1 is the overall structure main view of the embodiment of the present invention
Fig. 2 is the overall structure right view of the embodiment of the present invention
Fig. 3 is the overall structure top view of the embodiment of the present invention
Fig. 4 is the attachment device structural schematic diagram of the embodiment of the present invention
Fig. 5 is the telescopic device structural schematic diagram of the connecting rod of the embodiment of the present invention
Fig. 6 is the attachment device structural schematic diagram with locking device cooperation of the embodiment of the present invention
Fig. 7 is the locking device structure schematic diagram with attachment device cooperation of the embodiment of the present invention
Fig. 8 is the measuring method flow chart of the embodiment of the present invention
Fig. 9 is the measurement operation sectional view of the embodiment of the present invention
Figure 10 is the survey calculation schematic diagram of the embodiment of the present invention
In figure:
1, the first prism head 2, connecting rod 3, the first fixture
4, attachment device 5, the second fixture 6, the second prism head
7, the second cable trough 8, anti-skid device 9, locking device
10, the first cable trough 11, prism head 12, cable clamp
13, cable trough 14, engaging lug 15, connecting hole
16, cable 17, telescopic device 18, telescopic rod
19, snak link 20, open-work 21, outer sleeve
22, the first hinge 23, connecting shaft 24, the second hinge
25, axle sleeve 26, lock sheet 27, retaining ring
28, tight locking button 29, total station 30, biprism head device
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The embodiment of the present invention is described further with reference to the accompanying drawing:
As shown in Figure 1-3, a kind of biprism head device for measuring cable elevation and mileage, including cable clamp 12 and prism
First 11.Cable clamp 12 is equipped with cable trough 13, and cable clamp 12 includes the first fixture 3 and the second fixture 5,3 He of the first fixture
Second fixture 5 is in the form of a column body, and 3 lower surface of the first fixture is equipped with the first cable trough 10, and 5 upper surface of the second fixture is equipped with the second line
The equal semicircular in shape in section of cable slot 7, the section of the first cable trough 10 and the second cable trough 7, cable 16 are placed in cable trough 13.The
One fixture 3 and the second fixture 5, which are flexibly connected, clamps cable 16, and 3 upper surface of the first fixture is equipped with the first prism head 1, the second fixture 5
Lower surface is equipped with the second prism head 6, and the first prism head 1 and the second prism head 6 are in the same plane.
Cable clamp 12 is connect with prism head 11 by connecting rod 2.Connecting rod 2 is equipped with telescopic device 17, telescopic device
17 can be various structures, and telescopic device 17 is any device realizing 2 length of connecting rod and freely changing, provided in this embodiment
Telescopic device 17 is as shown in Figure 5.Telescopic device 17 includes outer sleeve 21 and telescopic rod 18, and 18 bottom of telescopic rod is equipped with snak link
19, outer sleeve 21 is equipped with open-work 20, and 18 bottom of telescopic rod is placed in inside outer sleeve 21, open-work 20 be it is multiple, open-work 20 is uniform
It is distributed on outer sleeve 21, snak link 19 penetrates open-work 20.
First fixture 3 and the second fixture 5 are connected by attachment device 4, and attachment device 4 can be various structures, as long as real
Existing 5 free-open-close of first fixture 3 and the second fixture.As shown in figure 4, being a kind of attachment device 4 provided in this embodiment.Even
Connection device 4 is bolt and nut, and 12 both ends of cable clamp are respectively equipped with engaging lug 14, and engaging lug 14 is equipped with connecting hole 15, spiral shell
Bolt is placed in connecting hole 15, nut fixing bolt.The quantity of connecting hole 15 and bolt and nut can according to the length of engaging lug 14 from
By selecting.
Preferably, the first fixture 3 and 5 one end of the second fixture are connected by attachment device 4, and the other end passes through locking device 9
Connection.As shown in Figure 6.Attachment device 4 includes the first hinge 22, the second hinge 24 and connecting shaft 23, the first hinge 22 and second
24 junction of hinge be equipped with axle sleeve 25, axle sleeve 25 be it is multiple, axle sleeve 25 is disposed alternately in the first hinge 22 and the second hinge 24,
24 consistency from top to bottom of first hinge 22 and the second hinge, axle sleeve 25 intersect alignment, and connecting shaft 23 is placed in axle sleeve 25, the first hinge 22
It is rotated with the second hinge 24 along connecting shaft 23.
As shown in fig. 7, locking device 9 includes lock sheet 26 and tight locking button 28, lock sheet 26 is placed on the first fixture 3, is locked
It links closely and 28 is placed on the second fixture 5, tight locking button 28 is equipped with retaining ring 27, and lock sheet 26 is placed in retaining ring 27.Pass through connection
The cooperation of device 4 and locking device 9 can make the first fixture 3 and the second fixture 5 realize free-open-close, and when assembling is not necessarily to multiple school
It is right, it is time saving and energy saving.
Preferably, anti-skid device 8 is equipped in cable trough 13.Anti-skid device 8 can be various structures, it is possible to increase cable 16 with
The frictional force of cable trough 13 is conducive to fixed cable 16, is conducive to the measurement accuracy for improving 16 elevation of cable and mileage.This reality
The anti-skid device 8 for applying example offer is horse tooth trough, and height and quantity can be controlled freely according to actual needs.
Using device provided in an embodiment of the present invention, specific measurement method as shown in figure 8, include the following steps,
S1: preparation of construction measures the check at control point: rearscope is placed on another datum mark before measuring
It observes, is then continued to use in the permission of survey station error of coordinate range, then backsight is adjusted again outside error range after leveling.
S2: setting station, i.e., total station 29, leveling is set up in observation point, and modify the items such as the atmosphere of total station 29, backsight
Parameter.
S3: biprism head device 30 is placed in measured position, observes the first prism by total station 29 by mileage observation
First 1 and second prism head 6 calculate practical mileage numerical value.Specifically, " crosshair " in eyepiece is sighted the first prism head 1 respectively
It is the floor projection range measurement in measurement pattern to the pattern switching inside instrument with " crosshair " on the second prism head 6,
On the basis of gained reading twice, the mileage deviation of cable 16 to be asked is acquired with the mathematical principle in Fig. 9, Figure 10.
S4: biprism head device 30 is adjusted at design mileage by position adjustment repeatedly according to practical mileage numerical value.
S5: elevation observation observes 1 He of the first prism head as shown in figure 9, adjusting prism head 11 to design mileage
Second prism head 6 reads the 6 elevation numerical value of 1 elevation numerical value of the first prism head and the second prism head of position respectively.Specifically
" crosshair " that " crosshair " in eyepiece is sighted to the first prism head 1 and the second prism head 6 respectively, to the mode inside instrument
The elevation measurement mode being switched in measurement pattern reads the 1 elevation H of the first prism head in biprism head device 30 respectively1, and
Second prism head, 6 elevation H2。
S6: calculating elevation, i.e., calculates the practical elevation numerical value of cable centerline by formula.Formula is H=(H1+H2)/2 are such as schemed
Shown in 10, wherein H1For 1 elevation numerical value of the first prism head, i.e.,；H2For 6 elevation numerical value of the second prism head, H is that cable centerline is practical
Elevation numerical value.
S7: 16 height of cable is adjusted, i.e., cable 16 is adjusted to by design according to the practical elevation numerical value in 16 center of cable repeatedly
At elevation.It is compared specifically, observation is calculated gained elevation result with monitoring data, is given an order according to result by monitoring side
Cable end in the tension slot groove at 16 both ends of cable is adjusted, realizes the adjustment of 16 height of cable.
S8: checking, i.e., after the completion of the adjustment of all cables 16, observes three days according to scheme, gone out data give monitoring number
According to consistent, then enter next construction link.
The embodiment of the present invention is specific to make for measuring first of diameter of suspension bridge as the elevation and mileage of the main push-towing rope of 70mm
It is as follows to make process:
The first fixture 3 and the second fixture 5 for selecting cast steel constitute cable clamp 12, the first fixture 3 and the second fixture 5
Both ends are respectively equipped with engaging lug 14, and the width of engaging lug 14 is 50mm, are respectively equipped with two connecting holes on the engaging lug 14 of every side
15, the diameter of connecting hole 15 is 12.5mm, cooperates with the bolt and nut of M12*50 and fixes.First fixture 3 and the second fixture 5 close
The outer dimension of cable clamp 12 after and is 230mm*65mm*100mm, and the center of cable clamp 12 is equipped with cable trough 13, line
The diameter of cable slot 13 is 75mm, and the horse tooth trough for being improved frictional force is reserved in cable trough 13, and the height of horse tooth trough is 2mm, cable
12 upper and lower ends of fixture are welded with connecting rod 2, and the material of connecting rod 2 is stainless steel tube.2 other end of connecting rod and 29 rib of total station
Camera lens 11 is connected by bolt and nut.Cable clamp 12 and 11 connecting rod 2 of prism head ensure two ribs when factory is welded and fixed
11 connecting rod of camera lens 2 is coaxial and is each perpendicular to cable clamp 12.When surveyed cable diameter changes, cable clamp 12 with
4 sets of bolt and nuts adapt to 16 diameter of cable or caliber of variation by adjusting the degree for tightening nut.
In application, checking the accurate of producing device by simply measuring the coordinate of known point within the scope of closely 10 meters
Property.Cable clamp 12 is locked in advance in advance with cable 16 to be measured, and fixture size is properly advisable, can also be by adding cotton pad
Piece makes clamp.During total station 29 measures, the data for acquiring two camera lenses up and down carry out average evaluation, obtain final
Monitoring result.
The advantages and positive effects of the present invention are:
1, biprism head apparatus structure of the invention is simple, easy to operate, can be to the bridge of different height, different-diameter
Cable and other building line cables carry out the monitoring of the elevation, mileage in later period, at the same can correct degree to Installation Elevation, mileage into
Row is checked, and is had a wide range of application, practical, is suitble to promote and apply.
2, the present invention is precisely accomplished elevation and mileage at the every place's sunpender extension counterweight of cable by biprism head device, to height
Cheng Jinhang is averaged evaluation, carries out substitution ratio pair to mileage, finds the deviation data that position to be measured is directed to center accurately, carries out asking flat
Mean value obtains data, and accuracy is high, time saving and energy saving.Compared with traditional monitoring, save manually in each point measurement and repetition measurement flower
The time that the time taken and mileage monitoring measuring tape calculate, avoid factors elevation caused by same measurement point such as environment, artificial
The larger situation of error, mileage error, environmental error, personal error, while solving traditional monitoring data not in very big level
Accurate problem, while the subsequent artefacts' loss for needing to carry out when also eliminating measuring tape, round-trip repetition measurement, not only save manpower also
The duration is shortened, fund has been saved, and construction quality has obtained the affirmative of management of engineering construction each side, has achieved good economy
Benefit and social benefit.
3, cable clamp is designed to locking type by the present invention, by the cooperation of attachment device and locking device, realizes first
The folding and fixation of fixture and the second fixture, the cable measurement of applicable plurality of specifications, by the way that anti-skidding dress is arranged in cable trough
It sets, it is possible to increase the frictional force of cable and cable trough is conducive to fixed cable, is conducive to the measurement essence for improving cable elevation and mileage
Degree, is provided with telescopic device in connecting rod, and usable and a variety of situations, use is more flexible, applied widely, utilization rate
Height, it is practical.Using measurement method of the invention, measurement error is small, securely and reliably, improves work efficiency.
One embodiment of the present invention has been described in detail above, but the content is only preferable implementation of the invention
Example, should not be considered as limiting the scope of the invention.It is all according to all the changes and improvements made by the present patent application range
Deng should still be within the scope of the patent of the present invention.
Claims (10)
1. a kind of biprism head device for measuring cable elevation and mileage, it is characterised in that: including cable clamp, the cable clamp
Tool includes the first fixture and the second fixture, and first fixture and second fixture are in the form of a column body, under first fixture
Surface is equipped with the first cable trough, and second fixture upper surface is equipped with the second cable trough, the section of first cable trough and institute
The equal semicircular in shape in section of the second cable trough is stated, cable is placed in first cable trough and second cable trough, and described
One fixture and second fixture, which are flexibly connected, clamps the cable, and first fixture upper surface is equipped with the first prism head, institute
The second fixture lower surface is stated equipped with the second prism head, the first prism head and the second prism head are in the same plane.
2. a kind of biprism head device for measuring cable elevation and mileage according to claim 1, it is characterised in that: described
First fixture and the first prism head, second fixture pass through connecting rod with the second prism head and connect.
3. a kind of biprism head device for measuring cable elevation and mileage according to claim 1 or 2, it is characterised in that:
First fixture is connected with second fixture one end by attachment device, and the other end is connected by locking device.
4. a kind of biprism head device for measuring cable elevation and mileage according to claim 3, it is characterised in that: described
Attachment device includes the first hinge, the second hinge and connecting shaft, and first hinge and second hinge junction are equipped with axis
Set, the axle sleeve be it is multiple, the axle sleeve is disposed alternately at first hinge and the second page on piece, first hinge
With the second page piece consistency from top to bottom, the axle sleeve intersects alignment, and the connecting shaft is placed in the axle sleeve, first hinge
It is rotated with second hinge along the connecting shaft.
5. a kind of biprism head device for measuring cable elevation and mileage according to claim 3, it is characterised in that: described
Locking device includes lock sheet and tight locking button, and the lock sheet is placed on first fixture, and the locking is buckled on described the
On two fixtures, the tight locking button is equipped with retaining ring, and the lock sheet is placed in the retaining ring.
6. a kind of biprism head device of measurement cable elevation and mileage, feature described according to claim 1 or 2 or 4 or 5
It is: is equipped with anti-skid device in first cable trough and second cable trough.
7. a kind of biprism head device of measurement cable elevation and mileage, feature according to claim 2 or 4 or 5 exist
In: the connecting rod is equipped with telescopic device, and the telescopic device includes outer sleeve and telescopic rod, and the telescopic rod bottom is equipped with
Snak link, the outer sleeve are equipped with open-work, and the telescopic rod bottom is placed in inside the outer sleeve, the open-work be it is multiple,
The open-work is evenly distributed on the outer sleeve, and the snak link penetrates the open-work.
8. using the measurement side of a kind of any described measurement cable elevation of claim 1 to 7 and the biprism head device of mileage
Method, it is characterised in that: include the following steps,
S1: being placed in measured position for biprism head device, passes through the first prism head described in total station observation and second rib
Camera lens calculates practical mileage numerical value；
S2: the biprism head device is adjusted to repeatedly at design mileage according to the practical mileage numerical value；
S3: the first prism head and the second prism head are adjusted to the design mileage, observe first prism
Head and the second prism head, respectively read position the first prism head height number of passes value and the second prism head height
Number of passes value；
S4: the practical elevation numerical value of the cable centerline is calculated by formula；
S5: the cable is adjusted at design altitude repeatedly according to the cable centerline practical elevation numerical value.
9. a kind of measurement method for measuring cable elevation and mileage according to claim 8, it is characterised in that: in step S1
Before, further include setting station, the total station is set up in survey station point, adjusts the parameters of the total station.
10. the measurement method of a kind of measurement cable elevation and mileage according to claim 8 or claim 9, it is characterised in that: described
Formula is in step S4, H=(H1+H2)/2, wherein H1For the first prism head height number of passes value；H2For the second prism head
Elevation numerical value, H are the practical elevation numerical value of the cable centerline.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754697A (en) * | 2022-03-28 | 2022-07-15 | 中铁大桥局集团第五工程有限公司 | Spatial linear positioning and measuring device and measuring method for main cable reference strand of suspension bridge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5087125A (en) * | 1987-04-08 | 1992-02-11 | Optec Co., Ltd. | Equipment for measuring a difference in elevation |
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