CN114030394A - Subway contact net full-parameter trackless measurement construction method - Google Patents
Subway contact net full-parameter trackless measurement construction method Download PDFInfo
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- CN114030394A CN114030394A CN202111432009.6A CN202111432009A CN114030394A CN 114030394 A CN114030394 A CN 114030394A CN 202111432009 A CN202111432009 A CN 202111432009A CN 114030394 A CN114030394 A CN 114030394A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/20—Arrangements for supporting or suspending trolley wires, e.g. from buildings
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Abstract
The invention discloses a subway contact net full-parameter trackless measurement construction method, which relates to the technical field of subway construction and comprises the following steps: s1, obtaining coordinates of the suspension point through the mileage of the suspension point and the distance of the suspension point deviating from the center of the pantograph; s2, measuring lofting and rechecking: guiding the coordinates of the suspension points into a total station, utilizing a CPIII control pile to carry out station setting of the total station, lofting and marking the suspension points point by point, recording corresponding suspension point elevation h after lofting, and obtaining a measurement angle alpha; and S3, performing full parameter calculation by adopting the height h of the suspension point and the measurement angle alpha to obtain the length of the suspension post, the installation and correction angle of the suspension post, the production angle of the suspension post and the installation height of the cantilever on the suspension post. The invention meets the high-precision requirement of high-speed subways, and can be widely applied to trackless measurement construction of subway contact networks.
Description
Technical Field
The invention relates to the technical field of subway construction, in particular to a subway overhead contact system full-parameter trackless measurement construction method.
Background
With the continuous development of economic society and cities in China, the requirements of citizens on the comfort level and the rapidity of subways are increasingly improved, and high-speed subways (urban area express lines) are bred, so that higher requirements on the measurement and installation accuracy of contact networks are provided. The hot-slip opening of a contact network is a milestone event of the subway construction entering into comprehensive joint debugging. However, the construction of the contact net is almost affected by construction speed increasing, early-stage sign-off, civil engineering and track construction delay, and the construction period of the contact net is almost zero. Therefore, the trackless measurement and calculation of the suspension point of the contact net is the most critical ring, and the customization of materials, the installation quality, the effective construction period and the like of the contact net are directly influenced. The general subway rigid contact net mainly comprises a chemical anchor bolt, a suspension channel steel, a bus bar, a contact line, an overhead ground wire and the like. The high-speed subway is different from a common subway rigid contact net in composition, mainly comprises a sliding groove, a T-shaped bolt, a hanging column, a spiral arm and the like, and belongs to a novel subway suspension positioning device.
A traditional total station for trackless measurement lofts a line center line on the tunnel ground to form a mark of the line center on the tunnel ground, the position of a suspension point is marked in an interval by a tape measure pulling method, and then a plumb of a line center mark point at the suspension point is projected on the top surface of the tunnel by a line projector and marked. However, the method has the defects of large curve section error, low straight section precision, incapability of determining the length of an anchor bolt and the like, and particularly cannot realize the measurement and calculation work of the length of a suspension post, the angle of a top plate, the installation and correction angle of the suspension post and the installation height of a cantilever on the suspension post on the high-speed subway measurement, and cannot meet the basic requirements of high-speed subway trackless measurement construction.
The traditional construction process comprises the following steps:
coordinate calculation → tunnel ground line center measurement lofting → tunnel ground positioning point projection to tunnel top → tunnel top positioning point offset measurement → trackless construction.
According to the traditional trackless measurement construction, the mileage of each positioning point is calculated according to a contact network plane layout, the coordinate of the line center of each positioning point is calculated according to line information provided by a design institute, line center coordinate lofting and marking are carried out by using a total station, the line center mark on the tunnel ground is vertically projected to the top surface of the tunnel, and for a straight line segment, the vertical projection of the line center mark on the tunnel ground on the top surface of the tunnel is the projection of a pantograph center on the top surface of the tunnel. For the curve segment, an offset exists between the projection of the center of the pantograph on the top surface of the tunnel and the vertical projection of the line center mark on the top surface of the tunnel, and the error of the curve segment is large. And (3) during the construction of the contact network, punching according to the marked positioning points, and installing a chemical anchor bolt and a suspension device. The trackless measuring process is complex, and the measuring time is long. The accumulated error exists in the multiple measurement, and the construction quality can not be ensured.
The main disadvantages of the prior art include:
when a trackless measurement mark is used for hanging a positioning point, multiple measurements exist, the time consumption is long, the measurement and the positioning cannot be performed at one time, and the accumulated measurement error exists in the multiple measurements.
Secondly, when the curve section is measured, the line center line and the pantograph center line are not coincident, the error is large, the precision is insufficient, and the later reworking risk is large.
The existing trackless measuring technology can only complete the measurement of the position of a suspension positioning point of a common subway, the length of an anchor bolt cannot be measured, the trackless measuring value is too low, and particularly, the measurement and calculation work of the length of a suspension post, the angle of a top plate, the installation correction angle of the suspension post and the installation height of a cantilever on the suspension post cannot be realized on the trackless measurement of the high-speed subway, so that the basic requirement of trackless measurement and construction of the high-speed subway cannot be met.
Disclosure of Invention
The invention aims to provide a construction method for full-parameter trackless measurement of a subway contact network, which aims to solve the problems in the prior art, obtain the length of a suspension post, the angle of a top plate, the installation and correction angle of the suspension post and the installation height of a cantilever on the suspension post, and realize full-parameter trackless measurement and accurate assembly construction.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a subway contact net full-parameter trackless measurement construction method, which comprises the following steps of:
s1, obtaining coordinates of the suspension point through the mileage of the suspension point and the distance of the suspension point deviating from the center of the pantograph;
s2, measuring lofting and rechecking: guiding the coordinates of the suspension points into a total station, utilizing a CPIII control pile to carry out station setting of the total station, lofting and marking the suspension points point by point, recording corresponding suspension point elevation h after lofting, and obtaining a measurement angle alpha;
and S3, performing full parameter calculation by adopting the height h of the suspension point and the measurement angle alpha to obtain the length of the suspension post, the installation and correction angle of the suspension post, the production angle of the suspension post and the installation height of the cantilever on the suspension post.
Preferably, the S2 includes the steps of:
s21, importing the CPIII of the section to be tested and coordinates of a suspension point into a total station;
s22, setting stations according to the station setting requirements of the total station CPIII strictly;
s23, adjusting a total station lofting mode, calling out a suspension point, beginning lofting the suspension point, marking the suspension point according to a total station laser indication point, recording the marking point, writing a suspension point number and a pull-out value according to a contact network measurement requirement, and recording the suspension point elevation h measured by the total station at the moment;
s24, rotating the total station downwards, adjusting the indication laser of the total station to the shield wall right below the mark point, adjusting the measurement parameters to make the coordinate of the measurement point consistent with the coordinate of the suspension point, aligning the center of the electronic level ruler to the laser indication point, measuring the angle, and recording the measurement angle alpha.
Preferably, in S23, the lofting mode of the total station is adjusted to be a tracking measurement, prism-free mode.
Preferably, in S23, the total station is a total station with a servo motor.
Preferably, in said S23, the lofting of the suspension point is in principle only possible in the two pairs of CPIII control stakes used in the total station setting, without having to loft beyond the range.
Preferably, in S23, before setting a new station for lofting, retesting a nearest suspension point of the previous station for lofting, and performing cross check between two stations to ensure accuracy of measurement.
Preferably, in S3, the suspension post length H is:
H＝(h-h0)÷cos[arcsin(hsuper-super÷1435)]±P×hSuper-super÷1435-hRail
Wherein h is the elevation of a suspension point measured by a total station in meters; h is0The height of the rail surface at the suspension point is unit meter; h isSuper-superThe outer rail at the suspension point is ultrahigh in unit millimeter; 1435 is standard gauge, unit mm; p is the distance between the suspension post and the center of the line and is unit meter; h isRailThe distance from the bottom of the suspension post to the rail surface is unit meter.
Preferably, in S3, the suspension post installation adjustment angle θ is:
θ＝arcsin(hsuper-super÷1435)÷π×180°
Wherein h isSuper-superThe outer rail at the suspension point is ultrahigh in unit millimeter; 1435 is the gauge in millimeters.
Preferably, in S3, the suspension post production angle β is:
β＝(90°-α)±θ
wherein alpha is a measurement angle at a suspension point and a unit degree; theta is the installation integral angle of the suspension post and the unit degree.
Preferably, in the step S3, the installation height h of the cantilever on the suspension postAnComprises the following steps:
han＝{(h-h0)÷cos[arcsin(hSuper-super÷1435)]±P×hSuper-super÷1435}×1000-hIs connected with-h1
Wherein h is the elevation of a suspension point measured by a total station in meters; h is0The height of the rail surface at the suspension point is unit meter; h isSuper-superThe outer rail at the suspension point is ultrahigh in unit millimeter; 1435 is standard gauge, unit mm; p is in the line of the suspension column distanceHeart distance in meters; h isIs connected withThe height of a contact net is measured in millimeters; h is1The thickness of the sliding groove, the thickness of the top plate of the hanging column and the distance between the contact line and the hoop on the installation base are the sum of unit millimeter.
Compared with the prior art, the invention has the following technical effects:
according to the invention, coordinates of suspension points are theoretically calculated, and a total station is adopted for direct lofting and positioning, so that trackless measurement construction requirements of contact networks with different tunnel sections and different speed grades can be met; compared with the traditional trackless measurement construction, the method adopts geodetic coordinates to directly position, can perform high-precision positioning measurement on straight lines and curves, and can determine and calculate the length of the suspension post, the angle of the top plate, the installation correction angle of the suspension post and the installation height of the cantilever on the suspension post, thereby realizing full-parameter trackless measurement and precise assembly construction. The total-parameter trackless measurement of the high-speed subway contact network uses a total station and an angle ruler as main measurement equipment, and uses high-precision CPIII as a control pile to carry out measurement construction, so that the high-precision requirement of the high-speed subway is met, and the method can be widely applied to trackless measurement construction of the subway contact network.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of a catenary suspension installation;
wherein: 1-T bolt; 2-hanging columns; 3-rotating the base; 4-a twisting seat; 5-rigid suspension post insulators; 6-screw rod; 7-a screw cap; 8-lock washer; 9-positioning the wire clamp connecting plate; 10-positioning a wire clamp; 11-a davit roof; 12-a chute; 13-anchor ear; 14-contact line; 15-pantograph.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The invention aims to provide a construction method for full-parameter trackless measurement of a subway contact network, which aims to solve the problems in the prior art, obtain the length of a suspension post, the angle of a top plate, the installation and correction angle of the suspension post and the installation height of a cantilever on the suspension post, and realize full-parameter trackless measurement and accurate assembly construction.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The embodiment provides a subway contact network full-parameter trackless measurement construction method, which comprises the following steps of:
s1, obtaining coordinates of the suspension point through the mileage of the suspension point and the distance of the suspension point deviating from the center of the pantograph 15 (X, Y); before calculation, a professional and formal line and slope adjusting (comprehensive track laying) diagram or related data of the track is required to be provided. Meanwhile, the mileage and the limit of a suspension point of the contact network need to be carefully checked when the mileage and the limit are counted, and the accuracy of the mileage after the length of the line is short is particularly noticed;
the distance of the suspension point from the center of the pantograph 15 refers to the distance from the center of the suspension point suspension column top plate 11 to the center line of the pantograph 15;
specifically, the coordinate calculation starting point range L is known0Starting point coordinate (X)0，Y0) The azimuth gamma of the starting point and the mileage L of the point to be calculated are calculated in three conditions.
Straight line segment: by linear function X ═ X0+(L-L0)*cosγ；Y＝Y0+(L-L0)*sinγ；
Circle curve segment: x ═ X0+cos[γ±(180°/π×L/R1)/2]×C1；Y＝Y0+sin[γ±(180°/π×L/R1)/2]×C1(ii) a Wherein, C1Is the chord length of a circular curve segment, R1Is a circleThe radius of the curve segment;
a relaxation curve segment: x ═ X0+cos(γ±δ/3)×C2；Y＝Y0+sin(γ±δ/3)×C2；
δ＝(L-L0)2/2R2LS×180°/π；C2＝(L-L0)-(L-L0)5/90R2 2LS 2；
Wherein L isSRepresents the total length of the relaxation curve, C2To moderate the chord length of the curved section, R2A radius of a circle of a gentle curve section;
s2, measuring lofting and rechecking: and (3) guiding the coordinates of the suspension points into a total station, setting the total station by using the CPIII control pile, lofting and marking the suspension points point by point, wherein the X and Y coordinates are only available, so that the upper point and the lower point of the tunnel wall are bound to exist during the measurement of the shield tunnel. And the upper side point is a suspension point, the corresponding suspension point elevation h is recorded after lofting, the instrument is rotated downwards to find a lower measurement point, and the angle value alpha of the position is measured by using an angle ruler according to the position of the laser indication point. Because the included angles between the tangent lines of the upper and lower symmetrical points and the horizontal direction of the circular shield tunnel are equal and are alpha, the measurement angle alpha is obtained;
the CPIII is a track construction measurement control pile, is a measurement control point extended through a civil engineering Control Pile (CPII), is more accurate than the civil engineering control pile after the CPIII control pile is subjected to operations such as checking, adjustment and the like, is also composed of (X, Y, Z) coordinates, and is set to be general operation before the total station is measured.
Specifically, S2 includes the steps of:
s21, importing the CPIII of the section to be tested and coordinates of a suspension point into a total station;
s22, setting stations according to the station setting requirements of the total station CPIII strictly;
s23, adjusting a total station lofting mode to be a tracking measurement and prism-free mode, calling out a suspension point, beginning lofting the suspension point, automatically finding the approximate position of the suspension point by adopting the total station with a servo motor, marking the suspension point according to a total station laser indication point after manual fine adjustment, marking the suspension point as a marking point, writing a suspension point number and a pull-out value according to a contact network measurement requirement, and recording the suspension point elevation h measured by the total station by a recording person;
s24, manually rotating the total station downwards (horizontal non-rotation), adjusting the indicating laser of the total station to the shield wall right below the marking point, finely adjusting the measuring parameters to make the coordinate of the measuring point consistent with the coordinate of the suspension point, aligning the center of the 200-type electronic level ruler to the laser indicating point by the marking personnel, measuring the angle, and recording the measuring angle alpha by the recording personnel.
In this embodiment, in S23, lofting of a suspension point can only be performed in two pairs of CPIII control piles used in a total station setting station in principle, and lofting beyond a range cannot be performed; before setting a new station for lofting, retesting a nearest suspension point of the lofting of the previous station, and performing cross check between two stations to ensure the accuracy of measurement; recording personnel need to measure a guardian and observe and supervise the correct operation and lofting work of marking personnel;
s3, performing full parameter calculation by adopting the height h of the suspension point and the measurement angle alpha to obtain the length of the suspension post 2, the installation and correction angle of the suspension post 2, the production angle of the suspension post 2 and the installation height of the cantilever on the suspension post 2; and data support is provided for ordering the hanging columns 2, field installation and correction and cantilever installation. After the calculation is completed, each parameter is checked by a technician.
Specifically, the length H of the suspension post 2 is:
H＝(h-h0)÷cos[arcsin(hsuper-super÷1435)]±P×hSuper-super÷1435-hRail
Wherein h is the elevation of a suspension point measured by a total station in meters; h is0The height of the rail surface at the suspension point is unit meter; h isSuper-superThe outer rail at the suspension point is ultrahigh in unit millimeter; 1435 is standard gauge, unit mm; p is the distance between the suspension post 2 and the center of the line, and is unit meter; h isRailThe distance from the bottom of the hanging column 2 to the rail surface is unit meter;
the installation and correction angle theta of the suspension post 2 is as follows:
θ ═ arcsin (h over/1435) ÷ π × 180 °
Wherein h isSuper-superThe outer rail at the suspension point is ultrahigh in unit millimeter; reference numeral 1435 is a standard gauge,the unit is millimeter.
The production angle beta of the suspension post 2 is as follows:
β＝(90°-α)±θ
wherein alpha is a measurement angle at a suspension point and a unit degree; theta is the installation integral angle of the suspension post 2, namely the included angle between the post body and the top plate and unit degree;
the mounting height h of the cantilever on the suspension mast 2AnComprises the following steps:
han＝{(h-h0)÷cos[arcsin(hSuper-super÷1435)]±P×hSuper-super÷1435}×1000-hIs connected with-692
Wherein h is the elevation of a suspension point measured by a total station in meters; h is0The height of the rail surface at the suspension point is unit meter; h isSuper-superThe outer rail at the suspension point is ultrahigh in unit millimeter; 1435 is standard gauge, unit mm; p is the distance between the suspension post 2 and the center of the line, and is unit meter; h isIs connected withThe contact net guide height is 5300 mm in the embodiment, which is unit mm; h is1The thickness of the sliding groove 12, the thickness of the top plate 11 of the suspension post and the distance between the contact line 14 and the hoop 12 on the installation base are the sum of unit millimeter, in this embodiment h1692 mm.
The embodiment further comprises S4, and the goods and materials ordering and construction specifically comprises the following steps:
s41, before the suspension post 2 is installed, the serial number needs to be checked to ensure that the serial number corresponds to the suspension point one by one;
s42, due to errors of measurement, calculation, manufacture and the like, after the suspension post 2 is installed, a gasket is needed to be used for alignment, so that accumulated errors of a front procedure are eliminated, and the installation quality and precision are improved;
s43, the electronic level ruler adopted for correction needs to be simply corrected every day, and the correction construction of the suspension post 2 is carried out strictly according to the mounting correction angle of the suspension post 2 in the construction table;
s44, determining the installation height of the cantilever according to a construction table, wherein the installation height is influenced by the weight of the busbar and the cantilever, the whole cantilever generates deflection, and in order to improve the installation precision and facilitate later-stage adjustment, the installation experience of technical exploration is as follows: the cantilever was mounted 20mm upwards.
The implementation flow of this embodiment is as follows: coordinate calculation → measurement lofting and rechecking → full parameter calculation → ordering and construction of goods and materials.
In the embodiment, corresponding coordinates are calculated according to mileage (pull-out value) of a suspension point in a contact network plane layout diagram, lofting is carried out through a total station, the elevation of the corresponding point is recorded, the elevation of the corresponding rail surface is subtracted, the net height of the suspension point is calculated according to the height of the rail surface, the length of an anchor bolt (suspension column 2) is obtained, and the production angle of the suspension column 2 of the suspension point is measured by using an angle ruler.
In the embodiment, the total station and the angle ruler are used as main measuring equipment, the high-precision CPIII is used as a control pile, the method is adopted for measurement construction, the high-precision requirement of high-speed subways is met, and the method can be widely applied to trackless measurement construction of subway overhead contact networks.
According to the embodiment, coordinates of a suspension point are theoretically calculated, and the total station is adopted for direct lofting and positioning, so that the trackless measurement construction requirements of contact networks with different tunnel sections and different speed grades can be met. This embodiment adopts geodetic coordinate direct positioning, can carry out sharp and curved high accuracy positioning measurement, still can survey simultaneously and calculate 2 length of davit, roof angle, the whole positive angle of davit 2 installation and the mounting height of cantilever on davit 2, has realized that full parameter trackless is measured and accurate assembly construction. The subway contact network full-parameter trackless measurement construction method greatly reduces the risk of the project period. By applying the embodiment, the blank of domestic trackless full-parameter measurement is filled, and particularly the problem of inaccurate curve section measurement is fundamentally solved. And the CPIII is adopted as a measurement control network, so that the measurement precision is greatly improved. The embodiment is used for measuring and constructing the non-rail-mounted area, the construction safety coefficient is greatly improved, non-cross operation is realized, and the construction operation environment is optimized. Through the application of this embodiment, can "break away from" track construction restriction completely, realize balanced construction, can optimize material inventory, reasonable labour deploys, does not nest worker, does not robbe worker, has improved economic benefits. The position of the suspension point is positioned in the trackless measurement lofting mode, the workload of measuring personnel is reduced, and measurement accumulated errors are avoided. This embodiment is 2 orders for davit, and the field installation is neat, the cantilever installation provides data support, reduces technical staff data processing work load, guarantees the data accuracy, guarantees the installation accuracy, reduces later stage adjustment, improves the construction efficiency. The embodiment is full-parameter trackless measurement, can ensure the accuracy of each size of the order hanging column 2, does not perform secondary cutting processing on the spot and does not waste materials. The embodiment can satisfy the trackless construction demand of measuring of different tunnel sections, different speed grades contact net, can satisfy 2 mounting means of high-speed subway contact net davit and hang, also can satisfy general subway contact net crab-bolt mounting means and hang, when general subway contact net crab-bolt mounting means hung, 2 replacement for the davit in this embodiment are the crab-bolt.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. A subway contact network full-parameter trackless measurement construction method is characterized by comprising the following steps: the method comprises the following steps:
s1, obtaining coordinates of the suspension point through the mileage of the suspension point and the distance of the suspension point deviating from the center of the pantograph;
s2, measuring lofting and rechecking: guiding the coordinates of the suspension points into a total station, utilizing a CPIII control pile to carry out station setting of the total station, lofting and marking the suspension points point by point, recording corresponding suspension point elevation h after lofting, and obtaining a measurement angle alpha;
and S3, performing full parameter calculation by adopting the height h of the suspension point and the measurement angle alpha to obtain the length of the suspension post, the installation and correction angle of the suspension post, the production angle of the suspension post and the installation height of the cantilever on the suspension post.
2. The subway overhead line system full-parameter trackless measurement construction method according to claim 1, characterized in that: the S2 includes the steps of:
s21, importing the CPIII of the section to be tested and coordinates of a suspension point into a total station;
s22, setting stations according to the station setting requirements of the total station CPIII strictly;
s23, adjusting a total station lofting mode, calling out a suspension point, beginning lofting the suspension point, marking the suspension point according to a total station laser indication point, recording the marking point, writing a suspension point number and a pull-out value according to a contact network measurement requirement, and recording the suspension point elevation h measured by the total station at the moment;
s24, rotating the total station downwards, adjusting the indication laser of the total station to the shield wall right below the mark point, adjusting the measurement parameters to make the coordinate of the measurement point consistent with the coordinate of the suspension point, aligning the center of the electronic level ruler to the laser indication point, measuring the angle, and recording the measurement angle alpha.
3. The subway overhead line system full-parameter trackless measurement construction method according to claim 2, characterized in that: and in the step S23, adjusting the lofting mode of the total station to be a tracking measurement and prism-free mode.
4. The subway overhead line system full-parameter trackless measurement construction method according to claim 2, characterized in that: in S23, the total station is a total station with a servo motor.
5. The subway overhead line system full-parameter trackless measurement construction method according to claim 2, characterized in that: in S23, the lofting of the suspension point can only be performed in two pairs of CPIII control piles used in the total station setting station in principle, and the lofting cannot be performed beyond the range.
6. The subway overhead line system full-parameter trackless measurement construction method according to claim 5, characterized in that: in the step S23, before setting a new station for lofting, retesting a nearest suspension point of the previous station for lofting, and performing cross check between two stations to ensure accuracy of measurement.
7. The subway overhead line system full-parameter trackless measurement construction method according to claim 1, characterized in that: in S3, the suspension post length H is:
H＝(h-h0)÷cos[arcsin(hsuper-super÷1435)]±P×hSuper-super÷1435-hRail
Wherein h is the elevation of a suspension point measured by a total station in meters; h is0The height of the rail surface at the suspension point is unit meter; h isSuper-superThe outer rail at the suspension point is ultrahigh in unit millimeter; 1435 is standard gauge, unit mm; p is the distance between the suspension post and the center of the line and is unit meter; h isRailThe distance from the bottom of the suspension post to the rail surface is unit meter.
8. The subway overhead line system full-parameter trackless measurement construction method according to claim 1, characterized in that: in S3, the mounting adjustment angle θ of the suspension post is:
θ＝arcsin(hsuper-super÷1435)÷π×180°
Wherein h isSuper-superThe outer rail at the suspension point is ultrahigh in unit millimeter; 1435 is the gauge in millimeters.
9. The subway overhead line system full-parameter trackless measurement construction method according to claim 8, characterized in that: in the step S3, the production angle beta of the suspension column is as follows:
β＝(90°-α)±θ
wherein alpha is a measurement angle at a suspension point and a unit degree; theta is the installation integral angle of the suspension post and the unit degree.
10. The subway overhead line system full-parameter trackless measurement construction method according to claim 1, characterized in that: in the step S3, the installation height h of the cantilever on the suspension postAnComprises the following steps:
han＝{(h-h0)÷cos[arcsin(hSuper-super÷1435)]±P×hSuper-super÷1435}×1000-hIs connected with-h1
Wherein h is the elevation of a suspension point measured by a total station in meters; h is0The height of the rail surface at the suspension point is unit meter; h isSuper-superThe outer rail at the suspension point is ultrahigh in unit millimeter; 1435 is standard gauge, unit mm; p is the line of distance between suspension postsDistance of road center in meters; h isIs connected withThe height of a contact net is measured in millimeters; h is1The thickness of the sliding groove, the thickness of the top plate of the hanging column and the distance between the contact line and the hoop on the installation base are the sum of unit millimeter.
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|---|---|---|---|---|
| CN114386207A (en) * | 2022-03-25 | 2022-04-22 | 中铁电气化勘测设计研究院有限公司 | Suspension point-based contact network three-dimensional model construction method |
| CN118362104A (en) * | 2024-06-20 | 2024-07-19 | 中铁四局集团有限公司 | Urban rail transit field section contact net foundation trackless measurement method, system and application |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB299540A (en) * | 1927-08-06 | 1928-11-01 | Fritz Berg | Improvements relating to the suspension of the live wire of electric railways |
| FR691365A (en) * | 1930-01-27 | 1930-10-21 | Construction process for electric lines with constant mechanical tension | |
| GB821264A (en) * | 1956-12-05 | 1959-10-07 | British Insulated Callenders | Improvements in or relating to overhead electrification systems for railways |
| DE3213913A1 (en) * | 1982-04-15 | 1983-11-17 | Vsesojuznyj naučno-issledovatel'skij institut železnodorožnogo transporta, Moskva | Chain suspension of the aerial contact line network for electrified railways |
| CN2853543Y (en) * | 2005-11-21 | 2007-01-03 | 绵阳市铁人电气设备有限责任公司 | Instrument for measuring contact net static whole parameter |
| CN102145662A (en) * | 2010-12-30 | 2011-08-10 | 中铁三局集团电务工程有限公司 | Arched wrist arm of tunnel and measuring and determining method thereof |
| RU2014106435A (en) * | 2014-02-20 | 2015-08-27 | Анна Сергеевна Муратова-Милехина | METHOD FOR DETERMINING THE SHORT-TERMINAL PLACES OF THE ELECTRIFIED TRANSPORT CONTACT NETWORK |
| EP2942230A1 (en) * | 2014-05-09 | 2015-11-11 | DB Systemtechnik GmbH | Method for measuring the uplift of electrical contact lines on rail lines |
| CN106585427A (en) * | 2016-11-11 | 2017-04-26 | 中铁十二局集团有限公司 | Trackless construction method for subway rigid catenary system |
| RU2660195C1 (en) * | 2017-05-12 | 2018-07-05 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Уральский государственный университет путей сообщения" (УрГУПС) | Railways catenary system supports inclination angle control method |
| CN108457143A (en) * | 2018-03-27 | 2018-08-28 | 株洲时代电子技术有限公司 | A kind of track circuit coordinate measuring system |
| CN208515413U (en) * | 2018-06-15 | 2019-02-19 | 中铁四局集团电气化工程有限公司 | Subway assembled rigid overhead contact line device |
| CN109373988A (en) * | 2018-12-05 | 2019-02-22 | 中铁十二局集团有限公司 | Contact network in tunnel trackless construction survey instrument and method |
| CN210426438U (en) * | 2019-11-04 | 2020-04-28 | 四川信达轨道交通设备有限责任公司 | Single-rail laser full-parameter intelligent measuring instrument |
| CN111719364A (en) * | 2020-06-09 | 2020-09-29 | 中铁上海工程局集团有限公司 | Double-block ballastless track measurement and rechecking detection ruler and measurement and rechecking detection method |
| CN112393684A (en) * | 2020-11-24 | 2021-02-23 | 中铁十一局集团电务工程有限公司 | Contact net parameter measuring equipment and measuring method |
| CN112528386A (en) * | 2020-12-31 | 2021-03-19 | 中铁建电气化局集团第三工程有限公司 | Trackless accurate measurement method for suspension point position of contact network in subway tunnel |
| CN112697093A (en) * | 2020-12-22 | 2021-04-23 | 中铁十二局集团电气化工程有限公司 | Method for calculating length and angle of trackless measuring suspension post in shield tunnel |
-
2021
- 2021-11-29 CN CN202111432009.6A patent/CN114030394B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB299540A (en) * | 1927-08-06 | 1928-11-01 | Fritz Berg | Improvements relating to the suspension of the live wire of electric railways |
| FR691365A (en) * | 1930-01-27 | 1930-10-21 | Construction process for electric lines with constant mechanical tension | |
| GB821264A (en) * | 1956-12-05 | 1959-10-07 | British Insulated Callenders | Improvements in or relating to overhead electrification systems for railways |
| DE3213913A1 (en) * | 1982-04-15 | 1983-11-17 | Vsesojuznyj naučno-issledovatel'skij institut železnodorožnogo transporta, Moskva | Chain suspension of the aerial contact line network for electrified railways |
| CN2853543Y (en) * | 2005-11-21 | 2007-01-03 | 绵阳市铁人电气设备有限责任公司 | Instrument for measuring contact net static whole parameter |
| CN102145662A (en) * | 2010-12-30 | 2011-08-10 | 中铁三局集团电务工程有限公司 | Arched wrist arm of tunnel and measuring and determining method thereof |
| RU2014106435A (en) * | 2014-02-20 | 2015-08-27 | Анна Сергеевна Муратова-Милехина | METHOD FOR DETERMINING THE SHORT-TERMINAL PLACES OF THE ELECTRIFIED TRANSPORT CONTACT NETWORK |
| EP2942230A1 (en) * | 2014-05-09 | 2015-11-11 | DB Systemtechnik GmbH | Method for measuring the uplift of electrical contact lines on rail lines |
| CN106585427A (en) * | 2016-11-11 | 2017-04-26 | 中铁十二局集团有限公司 | Trackless construction method for subway rigid catenary system |
| RU2660195C1 (en) * | 2017-05-12 | 2018-07-05 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Уральский государственный университет путей сообщения" (УрГУПС) | Railways catenary system supports inclination angle control method |
| CN108457143A (en) * | 2018-03-27 | 2018-08-28 | 株洲时代电子技术有限公司 | A kind of track circuit coordinate measuring system |
| CN208515413U (en) * | 2018-06-15 | 2019-02-19 | 中铁四局集团电气化工程有限公司 | Subway assembled rigid overhead contact line device |
| CN109373988A (en) * | 2018-12-05 | 2019-02-22 | 中铁十二局集团有限公司 | Contact network in tunnel trackless construction survey instrument and method |
| CN210426438U (en) * | 2019-11-04 | 2020-04-28 | 四川信达轨道交通设备有限责任公司 | Single-rail laser full-parameter intelligent measuring instrument |
| CN111719364A (en) * | 2020-06-09 | 2020-09-29 | 中铁上海工程局集团有限公司 | Double-block ballastless track measurement and rechecking detection ruler and measurement and rechecking detection method |
| CN112393684A (en) * | 2020-11-24 | 2021-02-23 | 中铁十一局集团电务工程有限公司 | Contact net parameter measuring equipment and measuring method |
| CN112697093A (en) * | 2020-12-22 | 2021-04-23 | 中铁十二局集团电气化工程有限公司 | Method for calculating length and angle of trackless measuring suspension post in shield tunnel |
| CN112528386A (en) * | 2020-12-31 | 2021-03-19 | 中铁建电气化局集团第三工程有限公司 | Trackless accurate measurement method for suspension point position of contact network in subway tunnel |
Non-Patent Citations (2)
| Title |
|---|
| 东兴: "地铁刚性接触网施工关键技术分析", 《电子技术》 * |
| 王哲浩: "高速铁路接触网精确测量技术标准的研究", 《高速铁路接触网精确测量技术标准的研究》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114386207A (en) * | 2022-03-25 | 2022-04-22 | 中铁电气化勘测设计研究院有限公司 | Suspension point-based contact network three-dimensional model construction method |
| CN114386207B (en) * | 2022-03-25 | 2022-06-24 | 中铁电气化勘测设计研究院有限公司 | Suspension point-based contact network three-dimensional model construction method |
| CN118362104A (en) * | 2024-06-20 | 2024-07-19 | 中铁四局集团有限公司 | Urban rail transit field section contact net foundation trackless measurement method, system and application |
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