CN103277113A - Measuring device and control method applicable to evacuation platforms in subway tunnels - Google Patents
Measuring device and control method applicable to evacuation platforms in subway tunnels Download PDFInfo
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- CN103277113A CN103277113A CN2013102176348A CN201310217634A CN103277113A CN 103277113 A CN103277113 A CN 103277113A CN 2013102176348 A CN2013102176348 A CN 2013102176348A CN 201310217634 A CN201310217634 A CN 201310217634A CN 103277113 A CN103277113 A CN 103277113A
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Abstract
The invention belongs to the engineering technological science, mainly relates to limit control on construction for evacuation platforms in urban trail transit, and particularly discloses a measuring device and a control method for heights, widths and inner and outer edge lines of evacuation platforms. The measuring device is characterized in that a group of single-sided wheel flanges are arranged at the bottom of the right side of a stereoscopic rectangular cabinet frame, a group of double-sided wheel flanges are arranged at the bottom of the left side of the cabinet frame, three vertical beams are arranged on the cabinet frame, a crossbeam scale which is controlled via a first adjusting bolt and a second adjusting bolt is arranged on a groove of the first vertical beam and a groove of the second vertical beam, an extending block with a strut is erected on a front section of the upper portion of the left surface of the cabinet frame and is positioned on the lower portion of the crossbeam scale, a laser marking instrument platform is arranged in an inner cavity of the left portion of the cabinet frame, vertical adjusting bolts are arranged at four corners of the laser marking instrument platform, a reserved hole is formed in the center of the laser marking instrument platform, and a tool box is arranged on the right surface of the cabinet frame. The measuring device and the control method have the advantages that measurement and control data of the measuring device can be read visually and quickly, the measurement accuracy is high, operation is simple, and requirements on limit and line appearance quality of the evacuation platforms are met.
Description
[technical field]
The invention belongs to the engineering science, relate generally to the gauge control of the construction of evacuation platform in the urban track traffic, specifically comprise height, the width of evacuation platform, measurement mechanism and the control method of interior border line.
[background technology]
Urban track traffic is an important component part of urban public transport, and along with development and the urbanization process of national economy are accelerated, the development of track traffic is also accelerated thereupon.And the universal dynamics of evacuation platform is also strengthening in the track traffic, domestic Guangzhou, Tianjin, Suzhou, the Hangzhou tunnel of awaiting a subway begins at running tunnel evacuation platform to be set, overcome when meeting accident passenger or when keeping in repair at ordinary times the workman on railway roadbed gait of march slowly and cause danger easily drawback.In the Guangzhou Underground construction, between two strands, be provided with the linear electric motors tablet, when maintenance or something unexpected happened, workman and passenger can not walk at railway roadbed, otherwise the linear electric motors tablet of stepping on is provided with evacuation platform for this reason in the tunnel, and the passenger is quick to make things convenient for, safe escape.
Existing evacuation platform relatively more commonly used has two kinds, a kind of girder steel and reinforced concrete cast-in-situ plated construction, another kind of reinforced concrete structure.In construction, because underground environment complexity, tunnel structure exists deviation, and orbit centre does not overlap with the tunnel center line, so the edge of evacuation platform must be consistent from maintenance with the center line distance of track, by track centerline and rail level absolute altitude by designing requirement to the girder steel size of evacuation platform with highly position, the line style of control evacuation platform is attractive in appearance, thereby guarantees that platform is smooth, comfortable.Traditional measuring method operation is more loaded down with trivial details, and can't encrypt and do not have root girder steel place, and particularly in circular tunnel curve location, in order to ensure track clearance, circular tunnel adopts the tunnel center line to the even track clearance of method of the inboard skew of central lines of track.Circular curve location side-play amount design formulas: B=ho * h/1500.Wherein: B is that the tunnel center line is to the horizontal displacement (mm) of central lines of track inboard; Ho is the distance (mm) that center, tunnel to rail is decided face, and value is 1800mm; H is curve location track superelevation value (mm).As utilize measuring apparatus to measure, and namely influence programming, increase workload and equipment, personnel drop into, be difficult to guarantee the precision measured again, and observing and controlling and simulating vehicle travel continuously.
[summary of the invention]
The object of the present invention is to provide a kind of simple to operate, be beneficial to dynamic operation, measurement mechanism and the control method thereof of the control of evacuation platform construction gauge in the relevant subway tunnel.
To achieve these goals, design the measurement mechanism of the evacuation platform construction gauge in a kind of relevant subway tunnel, comprise three-dimensional rectangle tank bracket and simulation girder steel, it is characterized in that bottom, three-dimensional rectangle tank bracket (18) right side is provided with one group of one-sided wheel rim (15), tank bracket (18) left bottom is provided with one group of bilateral wheel rim (12), tank bracket (18) left side leading portion is provided with first vertical beam (2), the tank bracket front center is provided with the 3rd vertical beam (4), the upper left-hand of the 3rd vertical beam (4) is provided with second vertical beam (3), groove at first vertical beam (2) and second vertical beam (3) is provided with the crossbeam chi (1) of regulating bolt (16) control by the first adjusting bolt (10) and second, bottom in crossbeam chi (1), top, tank bracket left side leading portion tank bracket is provided with an extension block, extension block is provided with support bar (11), tank bracket left part inner chamber is provided with Laser Line Marker platform (7), four angles of described Laser Line Marker platform are provided with up-down adjustment bolt (8), described Laser Line Marker platform center arranges a preformed hole (19), the tank bracket right side is provided with tool box (9), is provided with handle (17) in the tank bracket right upper portion.
First vertical beam, second vertical beam adopt the U-shaped steel material of long 900mm, sectional dimension is 30mm * 50mm, the vertical chute of fastening crab-bolt together is set respectively in the middle of the shaped steel, regulate bolt by the first adjusting bolt, second and can adjust the crossbeam chi up and down, the 3rd vertical beam adopts the U-shaped steel material of long 900mm, and sectional dimension is 30mm * 50mm, and the wire center line groove is carved with in the bottom, transverse reinforcement is welded in the bottom corresponding with the wire center line groove, and is carved with the wire center line groove at reinforcing bar.
The crossbeam chi adopts the U-shaped steel material of long 900mm, and U-shaped side is installed a side dorsad, and the centre arranges the horizontal concrete chute of a fastening crab-bolt, by first regulate bolt, second regulate bolt can about adjustment crossbeam chi.According to the length of central lines of track to the evacuation platform end, the 200mm place arranges the wire center line groove one in crossbeam chi upper end.
The Laser Line Marker platform adopts the thick galvanized steel plain sheet of 3mm, and its four angles have been symmetrical arranged four up-down adjustment bolts, and the bottom of four bolts is welded on the framework, and bolt is used for the level of up-down adjustment Laser Line Marker platform; Laser Line Marker platform center overlaps with the laser center, and the measuring point of Laser Line Marker mid point is made as on the central lines of track a bit, at Laser Line Marker platform center one preformed hole is set, and is used for the positioning and fixing Laser Line Marker.
But the bolt of support bar up-down adjustment, lower end are supported on the framework, and nut is stuck in the horizontal concrete chute of crossbeam chi, are used for auxiliary fixing, support to the crossbeam chi.
Two bilateral wheel rims are arranged on the device left bottom, thereby guarantee device bilateral wheel rim is close on the rail of track, can offset track.
Two one-sided wheel rims are arranged on bottom, device right side, and it can be movable among a small circle in orbit, prevents that when the track of non-standard segment is advanced or measured device is blocked by track or falls rail, have guaranteed that device moves and the quality of construction.
The simulation girder steel is divided into upper and lower limit and simulation steel plate, and the simulation steel plate adopts the 14mm steel plate, and simulation girder steel upper and lower limit adopts U-shaped steel material, fixes a steel ruler at the U-shaped steel material of simulation girder steel upper and lower limit, and the steel ruler end flushes with U-shaped steel end; Limit the use of hinge fixed-analog steel plate at the simulation girder steel, but make free adjustment when simulating the girder steel upper limit and simulating the steel plate angle with change different with the position of tunnel contact surface.
When the circuit straightway, the position finding of evacuation platform girder steel, method is as follows:
A. measuring car fixes with skate on the track of finishing laying, the first vertical beam bottom surface and rail level are same plane, be the rail level absolute altitude, regulate bolt by first, second regulates bolt respectively at first vertical beam, vertical chute on second vertical beam moves adjusts the crossbeam chi, make and be fixed on center plumb bob on the 3rd vertical beam by the center line groove on the crossbeam chi, central lines of track recesses coincide with the 3rd vertical beam bottom, on the plumb bob of center, up measure evacuation platform from the 3rd vertical beam bottom amount along the 3rd vertical beam center line with steel ruler and simulate girder steel upper limit height value H, and identify at the 3rd vertical beam.
B. set bolt passes preformed hole on the Laser Line Marker platform with the Laser Line Marker positioning and fixing, by adjusting symmetrically arranged four the up-down adjustment bolts of Laser Line Marker platform, carry out initial adjustment, carry out accurate adjustment with three legs on the Laser Line Marker base, make Laser Line Marker platform level.
C. the horizontal light of Laser Line Marker is adjusted to the evacuation platform height H value position of the 3rd vertical beam sign, by first regulating bolt up and down, second regulates bolt respectively at first vertical beam, vertical chute on second vertical beam moves adjusts the crossbeam chi, crossbeam chi end face is flushed with the horizontal light of Laser Line Marker, this moment Laser Line Marker horizontal light inswept crossbeam chi end face and tunnel tube wall, the horizontal light of Laser Line Marker to the distance of rail level absolute altitude is evacuation platform simulation girder steel upper limit height H on duty, after finishing, adjustment regulates bolt with first, second regulates bolt and support bar is fixed the crossbeam chi, prevents from that the crossbeam chi from moving down because of gravity to cause measure error.
D. the crossbeam chi measure design namely fixed central lines of track and identify at the crossbeam chi to the distance C of evacuation platform end.
E. will simulate girder steel is fixed on the crossbeam chi, and the simulation steel plate that will simulate the girder steel end is close to the section of jurisdiction wall, being stuck in the crossbeam ruler end part with the triangle steel ruler reads on the simulation girder steel, the scale L1=a+b of bottom rule, L2=a, L1, L2 is evacuation platform girder steel top, the length of bottom, wherein: a is that girder steel lower limit end is to the distance of simulating steel plate, b is the length difference of girder steel bound, horizon light line position according to Laser Line Marker on the tube wall identifies with tag line simultaneously, carry out the processing of evacuation platform girder steel according to measured data, carry out the definite location that reaches the girder steel setting height(from bottom) of boring of evacuation platform chemical anchor bolts according to the tag line on the tube wall.
When the circuit straightway, when structure or track construction had error, H was that design is definite value, when the evacuation platform girder steel is measured, central lines of track to the distance of evacuation platform end is C, and only evacuation platform girder steel top, the length L 1 of bottom, the L2 that simulates variation by the simulation girder steel gets final product.
When the circuit freeboard section, the position finding of evacuation platform girder steel, method is as follows:
A. measurement mechanism is fixed with skate on the track of finishing laying, regulate bolt, second bolt by first and about the chute on the crossbeam chi moves, adjust the crossbeam chi respectively, make to be fixed on center plumb bob on the 3rd vertical beam by the center line groove on the crossbeam chi, with the central lines of track recesses coincide of the 3rd vertical beam bottom.
B. the horizontal light of Laser Line Marker is adjusted to the evacuation platform height H value position of the 3rd vertical beam sign, by up and down first regulate bolt, second regulate bolt respectively the vertical chute on first vertical beam, second vertical beam move and adjust the crossbeam chi, crossbeam chi end face is flushed with the horizontal light of Laser Line Marker, this moment Laser Line Marker horizontal light inswept crossbeam chi end face and tunnel tube wall, the horizontal light of Laser Line Marker to the distance of rail level absolute altitude is evacuation platform simulation girder steel upper limit height value H.The adjustment back that finishes is regulated bolt, the second adjusting bolt and support bar with first the crossbeam chi is fixed, and prevents from that the crossbeam chi from moving down because of gravity to cause measure error.
C. will simulate girder steel is fixed on the crossbeam chi, and the simulation steel plate that will simulate the girder steel end is close to the section of jurisdiction wall, being stuck in the crossbeam ruler end part with the triangle steel ruler reads on the simulation girder steel, the scale L1=a+b of bottom rule, L2=a, L1, L2 is evacuation platform girder steel top, the length of bottom, wherein: a is that girder steel lower limit end is to the distance of simulating steel plate, b is the length difference of girder steel bound, horizon light line position according to Laser Line Marker on the tube wall identifies with tag line simultaneously, carry out the processing of evacuation platform girder steel according to measured data, carry out the definite location that reaches the girder steel setting height(from bottom) of boring of evacuation platform chemical anchor bolts according to the tag line on the tube wall.
When freeboard section, structure or track construction may exist error, and the superelevation value is gradual change, and H is the design definite value, and central lines of track to the distance C of evacuation platform end is constant.When the evacuation platform girder steel is measured, at first because the variation of superelevation value causes the variation of rail level absolute altitude, so will constantly readjust the crossbeam chi by top step, make rail level absolute altitude to crossbeam chi distance be H; Next gets final product by evacuation platform girder steel top, the length L 1 of bottom, the L2 that the simulation girder steel simulates variation.
D. be applicable under track circuit straightway and the curve half freeboard section condition and use.
The present invention compares with prior art, utilize evacuation platform measuring and controlling simulating vehicle on the track that lays to advance, one group of one-sided wheel rim by the bottom of device both sides, one group of bilateral wheel rim blocks rail and determines central lines of track, determine the width of evacuation platform girder steel to the vertical distance of evacuation platform girder steel end according to central lines of track, according to the height of track circuit centerline rail level absolute altitude to evacuation platform girder steel end face, determine the end face absolute altitude of evacuation platform girder steel and the position on the wall of section of jurisdiction, determine the bore position of prefabricated girder steel installation site and chemical anchor bolts by the simulation girder steel.
Measurement mechanism observing and controlling reading simple, intuitive, the length that can directly read girder steel; Realize the measurement directly perceived of evacuation platform girder steel prefabricating technique parameter, faster more than 5 times than common survey; The certainty of measurement height is accurate to mm; The simulating vehicle transport condition carry out the length of evacuation platform girder steel, highly, measurement and the control of inside and outside edge technical data, be quality and attractive in appearance the providing safeguard of engineering; Simultaneously simple to operate, convenient dynamic operation.
[description of drawings]
Fig. 1 is measurement mechanism stereogram of the present invention.
Fig. 2 is the measurement mechanism plan view.
Fig. 3 is the measurement mechanism front view.
Fig. 4 is the measurement mechanism side view.
Fig. 5 (a) is the plan view of first vertical beam on the measurement mechanism.
Fig. 5 (b) is the plan view of first vertical beam on the measurement mechanism.
Fig. 5 (c) is the plan view of the 3rd vertical beam.
Fig. 5 (d) is the profile of measurement mechanism vertical beam.
Fig. 6 is crossbeam chi plan view.
Fig. 7 is Laser Line Marker platform plane figure.
Fig. 8 (a) is simulation girder steel schematic diagram.
Fig. 8 (b) is simulation steel plate schematic diagram.
Fig. 9 is the evacuation platform girder steel end view when the circuit straightway in the embodiment of the invention.
Figure 10 (a) is threaded list road, a left side, the evacuation platform girder steel end when circuit freeboard section schematic diagram in the embodiment of the invention.
Figure 10 (b) is the right threaded list in the evacuation platform girder steel end when circuit freeboard section road schematic diagram in the embodiment of the invention.
As shown in the figure, among the figure: 1 is the crossbeam chi, and 2 is first vertical beam, 3 is second vertical beam, and 4 is the 3rd vertical beam, and 5 is set bolt, 6 is the first center circuit groove, and 7 is the Laser Line Marker platform, and 8 is the up-down adjustment bolt, 9 is the tool box, and 10 is the first adjusting bolt, and 11 is support bar, 12 is the bilateral wheel rim, plumb bob centered by 13, and 14 is the second center line groove, 15 is one-sided wheel rim, 16 is the second adjusting bolt, and 17 is handle, and 18 is framework, 19 is preformed hole, 20 is the ditch, and 21 is rail, and 22 is the girder steel end, 23 is the evacuation platform girder steel, 24 rail level absolute altitudes.
Fig. 1 is Figure of abstract of the present invention.
[specific embodiment]
The invention will be further described below in conjunction with accompanying drawing, and the structure of this device and principle are very clearly concerning this professional people.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
The present invention is measurement mechanism and the control method thereof of the evacuation platform in a kind of relevant subway tunnel, its know-why is to advance by evacuation platform measuring and controlling simulating vehicle on the track that lays, and one group of one-sided wheel rim by the bottom of device both sides, one group of bilateral wheel rim blocks rail and determines central lines of track, determine the width of evacuation platform girder steel to the vertical distance of evacuation platform girder steel end according to central lines of track, according to the height of track circuit centerline rail level absolute altitude to evacuation platform girder steel end face, determine the end face absolute altitude of evacuation platform girder steel and the position on the wall of section of jurisdiction, determine the bore position of prefabricated girder steel installation site and chemical anchor bolts by the simulation girder steel.In evacuation platform measuring and controlling bottom one group of one-sided wheel rim, one group of bilateral wheel rim are set, it is parallel with evacuation platform measurement mechanism framework to guarantee that the wire center line position accurately reaches orbital plane, the horizontal, vertical beam of adjusting device is determined central lines of track and rail level position, simulate the position of evacuation platform girder steel by simulation girder steel support at the crossbeam chi, thereby draw evacuation platform girder steel upper and lower part length; Laser Line Marker is set on the top platform, planar light source is provided, the base plate line of evacuation platform on sign evacuation platform girder steel height and the section of jurisdiction wall.
Device frame master material of the present invention adopts U-shaped steel material, device mainly is made up of framework, crossbeam chi, first vertical beam, second vertical beam, the 3rd vertical beam, set bolt, the first center circuit groove, Laser Line Marker platform, up-down adjustment bolt, tool box, the second adjusting bolt, support bar, bilateral wheel, center plumb bob, the second center line groove, one-sided wheel rim, the second adjusting bolt, handle, preformed hole, and be equipped with the simulation girder steel satisfy application requirements, see Fig. 1, Fig. 2, Fig. 3, Fig. 4.
First vertical beam, second vertical beam adopt the U-shaped steel material of long 900mm, sectional dimension is 30mm * 50mm, the vertical chute of fastening crab-bolt together is set respectively in the middle of the shaped steel, regulate bolt by the first adjusting bolt, second and can adjust the crossbeam chi up and down, the 3rd vertical beam adopts the U-shaped steel material of long 900mm, sectional dimension is 30mm * 50mm, the wire center line groove is carved with in the bottom, the bottom welding transverse reinforcement corresponding with the wire center line groove, and go out the central lines of track groove at the reinforcing bar subscript, see Fig. 1, Fig. 5.
As shown in Figure 6, crossbeam chi structure in apparatus of the present invention, the design attitude of present domestic thin dish platform, can select the length of crossbeam chi temporarily, its length 〉=circuit heart line line is to the distance+200mm that dredges dish platform girder steel end, it is 1800mm that length is set in the device of present embodiment, satisfies application requirements; The crossbeam chi adopts the U-shaped steel material of long 900mm, and U-shaped side is installed a side dorsad, and the centre arranges the horizontal concrete chute of a fastening crab-bolt, by first regulate bolt, second regulate bolt can about adjustment crossbeam chi.According to the length of central lines of track to the evacuation platform end, the 200mm place arranges the wire center line groove one in crossbeam chi upper end, sees Fig. 6.
The Laser Line Marker platform adopts the thick galvanized steel plain sheet of 3mm, and its four angles have been symmetrical arranged four up-down adjustment bolts, and the bottom of four bolts is welded on the framework, and bolt is used for the level of up-down adjustment Laser Line Marker platform; Laser Line Marker platform center overlaps with the laser center, and the measuring point of Laser Line Marker mid point is made as on the central lines of track a bit, at Laser Line Marker platform center one preformed hole is set, and is used for fixed laser graticule instrument, sees Fig. 7.
Supporting bar structure in apparatus of the present invention comprises: but the bolt of up-down adjustment, the lower end is supported on the framework, and nut is stuck in the horizontal concrete chute of crossbeam chi, is used for auxiliary fixing, support to the crossbeam chi.
Two bilateral wheel rims in apparatus of the present invention are arranged on the scope of operation one side of device bottom, adopting this structure is for device bilateral wheel rim is close on the rail of track on the one hand, can offset track, in the time of on the other hand when using, work plane one side is subjected to interference ratio bigger relatively, the bilateral wheel rim is fixed device well, has guaranteed construction quality.Two one-sided wheel rims are arranged on device bottom opposite side, and it can be movable among a small circle in orbit, prevents that when the track of non-standard segment is advanced or measured device is blocked by track or falls rail, guaranteed the quality of device moving process and construction.Bilateral wheel rim, one-sided wheel rim can the simulating vehicle state of orbiting carry out the length of evacuation platform girder steel, highly, measurement and the control of inside and outside edge technical data.
Handle in apparatus of the present invention can make things convenient for that device is carried out in orbit, the transfer tasks face.
The simulation girder steel is divided into upper and lower limit and simulation steel plate, and the simulation steel plate adopts the 14mm steel plate, and simulation girder steel upper and lower limit adopts U-shaped steel material.Fix a steel ruler at the U-shaped steel material of simulation girder steel upper and lower limit, the steel ruler end namely flushes near simulation steel plate one side with U-shaped steel end.Limit the use of hinge fixed-analog steel plate at the simulation girder steel, but make free adjustment when simulating the girder steel upper limit and simulating the steel plate angle with change different with the position of tunnel contact surface.
Connect by iron plate between the simulation girder steel upper and lower limit, iron plate and the rivet anchoring of upper limit simulation girder steel, with set bolt bolt knot, set bolt is used for fixing and adjusts the crossbeam chi and moves up and down respectively for lower limit girder steel and iron plate.Lower limit simulation girder steel is seen Fig. 8 by two set bolts move left and right and fixing in chute.
As shown in Figure 9, when the circuit straightway, evacuation platform girder steel position measurement method is as follows:
A. measuring car fixes with skate on the track of finishing laying, the first vertical beam bottom surface and rail level are same plane, be the rail level absolute altitude, regulate bolt by first, second regulates bolt respectively at first vertical beam, vertical chute on second vertical beam moves adjusts the crossbeam chi, make and be fixed on center plumb bob on the 3rd vertical beam by the center line groove on the crossbeam chi, central lines of track recesses coincide with the 3rd vertical beam bottom, on the plumb bob of center, up measure evacuation platform from the 3rd vertical beam bottom amount along the 3rd vertical beam center line with steel ruler and simulate girder steel upper limit height value H, and identify at the 3rd vertical beam.
B. by the set bolt on the Laser Line Marker platform Laser Line Marker is fixed, by adjusting symmetrically arranged four the up-down adjustment bolts of Laser Line Marker platform, carry out initial adjustment, carry out accurate adjustment with three legs on the Laser Line Marker base, make Laser Line Marker platform level.
C. the horizontal light of Laser Line Marker is adjusted to the evacuation platform height H value position of the 3rd vertical beam sign, by first regulating bolt up and down, second regulates bolt respectively at first vertical beam, vertical chute on second vertical beam moves adjusts the crossbeam chi, crossbeam chi end face is flushed with the horizontal light of Laser Line Marker, this moment Laser Line Marker horizontal light inswept crossbeam chi end face and tunnel tube wall, the horizontal light of Laser Line Marker to the distance of rail level absolute altitude is evacuation platform simulation girder steel upper limit height H on duty, after finishing, adjustment regulates bolt with first, second regulates bolt and support bar is fixed the crossbeam chi, prevents from that the crossbeam chi from moving down because of gravity to cause measure error.
D. the crossbeam chi measure design namely fixed central lines of track and identify at the crossbeam chi to the distance C of evacuation platform end.
E. will simulate girder steel is fixed on the crossbeam chi, and the simulation steel plate that will simulate the girder steel end is close to the section of jurisdiction wall, being stuck in the crossbeam ruler end part with the triangle steel ruler reads on the simulation girder steel, the scale L1=a+b of bottom rule, L2=a, L1, L2 is evacuation platform girder steel top, the length of bottom, wherein: a is that girder steel lower limit end is to the distance of simulating steel plate, b is the length difference of girder steel bound, horizon light line position according to Laser Line Marker on the tube wall identifies with tag line simultaneously, carry out the processing of evacuation platform girder steel according to measured data, carry out the definite location that reaches the girder steel setting height(from bottom) of boring of evacuation platform chemical anchor bolts according to the tag line on the tube wall.
When straightway, when structure or track construction had error, H was that design is definite value, when the evacuation platform girder steel is measured, central lines of track to the distance of evacuation platform end is c, and only evacuation platform girder steel top, the length L 1 of bottom, the L2 that simulates variation by the simulation girder steel gets final product.
As shown in figure 10, when the circuit freeboard section, the position finding of evacuation platform girder steel, method is as follows:
A. measurement mechanism is fixed with skate on the track of finishing laying, regulate bolt, second bolt by first and about the chute on the crossbeam chi moves, adjust the crossbeam chi respectively, make to be fixed on center plumb bob on the 3rd vertical beam by the center line groove on the crossbeam chi, with the central lines of track recesses coincide of the 3rd vertical beam bottom.
B. the horizontal light of Laser Line Marker is adjusted to the evacuation platform height H value position of the 3rd vertical beam sign, by up and down first regulate bolt, second regulate bolt respectively the vertical chute on first vertical beam, second vertical beam move and adjust the crossbeam chi, crossbeam chi end face is flushed with the horizontal light of Laser Line Marker, this moment Laser Line Marker horizontal light inswept crossbeam chi end face and tunnel tube wall, the horizontal light of Laser Line Marker to the distance of rail level absolute altitude is evacuation platform simulation girder steel upper limit height value H.The adjustment back that finishes is regulated bolt, the second adjusting bolt and support bar with first the crossbeam chi is fixed, and prevents from that the crossbeam chi from moving down because of gravity to cause measure error.
C. will simulate girder steel is fixed on the crossbeam chi, and the simulation steel plate that will simulate the girder steel end is close to the section of jurisdiction wall, being stuck in the crossbeam ruler end part with the triangle steel ruler reads on the simulation girder steel, the scale L1=a+b of bottom rule, L2=a, L1, L2 is evacuation platform girder steel top, the length of bottom, wherein: a is that girder steel lower limit end is to the distance of simulating steel plate, b is the length difference of girder steel bound, horizon light line position according to Laser Line Marker on the tube wall identifies with tag line simultaneously, carry out the processing of evacuation platform girder steel according to measured data, carry out the definite location that reaches the girder steel setting height(from bottom) of boring of evacuation platform chemical anchor bolts according to the tag line on the tube wall.
When freeboard section, structure or track construction may exist error, and the superelevation value is gradual change, and H is the design definite value, and central lines of track to the distance C of evacuation platform end is constant.When the evacuation platform girder steel is measured, at first because the variation of superelevation value causes the variation of rail level absolute altitude, so will constantly readjust the crossbeam chi by top step, make rail level absolute altitude to crossbeam chi distance be H; Next gets final product by evacuation platform girder steel top, the length L 1 of bottom, the L2 that the simulation girder steel simulates variation.
The method is applicable under track circuit straightway and the curve half freeboard section condition and uses, under other superelevation condition, as long as the vertical distance of adjusting device.
When construction, should be noted that simulating girder steel should handle with care, prevents bump.In addition, need record and number the data at every measurement one place respectively by interval and left and right sides line, during the girder steel processing and fabricating with number-mark on girder steel, install by numbering in order to process in prefabricated, the installation process.
Claims (10)
1. the measurement mechanism of the evacuation platform in the relevant subway tunnel, comprise three-dimensional rectangle tank bracket and simulation girder steel, it is characterized in that bottom, three-dimensional rectangle tank bracket (18) right side is provided with one group of one-sided wheel rim (15), tank bracket (18) left bottom is provided with one group of bilateral wheel rim (12), tank bracket (18) left side leading portion is provided with first vertical beam (2), the tank bracket front center is provided with the 3rd vertical beam (4), the upper left-hand of the 3rd vertical beam (4) is provided with second vertical beam (3), groove at first vertical beam (2) and second vertical beam (3) is provided with the crossbeam chi (1) of regulating bolt (16) control by the first adjusting bolt (10) and second, bottom in crossbeam chi (1), top, tank bracket left side leading portion tank bracket is provided with an extension block, extension block is provided with support bar (11), tank bracket left part inner chamber is provided with Laser Line Marker platform (7), four angles of described Laser Line Marker platform are provided with up-down adjustment bolt (8), described Laser Line Marker platform center arranges a preformed hole (19), the tank bracket right side is provided with tool box (9), is provided with handle (17) in the tank bracket right upper portion.
2. the measurement mechanism of the evacuation platform in a kind of relevant subway tunnel as claimed in claim 1, it is characterized in that first vertical beam, second vertical beam adopts the U-shaped steel material of long 900mm, sectional dimension is 30mm * 50mm, the vertical chute of fastening crab-bolt together is set respectively in the middle of the shaped steel, regulate bolt by first, second regulates bolt can adjust the crossbeam chi up and down, the 3rd vertical beam adopts the U-shaped steel material of long 900mm, sectional dimension is 30mm * 50mm, the wire center line groove is carved with in the bottom, transverse reinforcement is welded in the bottom corresponding with the wire center line groove, and is carved with the wire center line groove at reinforcing bar.
3. the measurement mechanism of the evacuation platform in a kind of relevant subway tunnel as claimed in claim 1, it is characterized in that the crossbeam chi adopts the U-shaped steel material of long 900mm, U-shaped side is installed a side dorsad, the centre arranges the horizontal concrete chute of a fastening crab-bolt, by first regulate bolt, second regulate bolt can about adjust the crossbeam chi; According to the length of central lines of track to the evacuation platform end, the 200mm place arranges the wire center line groove one in crossbeam chi upper end.
4. the measurement mechanism of the evacuation platform in a kind of relevant subway tunnel as claimed in claim 1, it is characterized in that the Laser Line Marker platform adopts the thick galvanized steel plain sheet of 3mm, its four angles have been symmetrical arranged four up-down adjustment bolts, the bottom of four bolts is welded on the framework, and bolt is used for the level of up-down adjustment Laser Line Marker platform; Laser Line Marker platform center overlaps with the laser center, and the measuring point of Laser Line Marker mid point is made as on the central lines of track a bit, at Laser Line Marker platform center one preformed hole is set, and is used for the positioning and fixing Laser Line Marker.
5. the measurement mechanism of the evacuation platform in a kind of relevant subway tunnel as claimed in claim 1, but the bolt that it is characterized in that the support bar up-down adjustment, the lower end is supported on the framework, and nut is stuck in the horizontal concrete chute of crossbeam chi, is used for auxiliary fixing, support to the crossbeam chi.
6. the measurement mechanism of the evacuation platform in a kind of relevant subway tunnel as claimed in claim 1, it is characterized in that two bilateral wheel rims are arranged on the device left bottom, thereby guarantee device bilateral wheel rim is close on the rail of track, can offset track.
7. the measurement mechanism of the evacuation platform in a kind of relevant subway tunnel as claimed in claim 1, it is characterized in that two one-sided wheel rims are arranged on bottom, device right side, it can be movable among a small circle in orbit, prevent when the track of non-standard segment is advanced or measured, device is blocked by track or falls rail, has guaranteed the quality of device moving process and construction.
8. the measurement mechanism of the evacuation platform in a kind of relevant subway tunnel as claimed in claim 1, it is characterized in that simulating girder steel and be divided into upper and lower limit and simulation steel plate, the simulation steel plate adopts the 14mm steel plate, simulation girder steel upper and lower limit adopts U-shaped steel material, fix a steel ruler at the U-shaped steel material of simulation girder steel upper and lower limit, the steel ruler end flushes with U-shaped steel end; Limit the use of hinge fixed-analog steel plate at the simulation girder steel, but make free adjustment when simulating the girder steel upper limit and simulating the steel plate angle with change different with the position of tunnel contact surface.
9. the measurement mechanism of the evacuation platform in the relevant subway tunnel is characterized in that when the circuit straightway, the position finding of evacuation platform girder steel, and method is as follows:
A. measuring car fixes with skate on the track of finishing laying, the first vertical beam bottom surface and rail level are same plane, be the rail level absolute altitude, regulate bolt by first, second regulates bolt respectively at first vertical beam, vertical chute on second vertical beam moves adjusts the crossbeam chi, make and be fixed on center plumb bob on the 3rd vertical beam by the center line groove on the crossbeam chi, central lines of track recesses coincide with the 3rd vertical beam bottom, on the plumb bob of center, up measure evacuation platform from the 3rd vertical beam bottom amount along the 3rd vertical beam center line with steel ruler and simulate girder steel upper limit height value H, and identify at the 3rd vertical beam.
B. set bolt passes preformed hole on the Laser Line Marker platform with the Laser Line Marker positioning and fixing, by adjusting symmetrically arranged four the up-down adjustment bolts of Laser Line Marker platform, carry out initial adjustment, carry out accurate adjustment with three legs on the Laser Line Marker base, make Laser Line Marker platform level.
C. the horizontal light of Laser Line Marker is adjusted to the evacuation platform height H value position of the 3rd vertical beam sign, by first regulating bolt up and down, second regulates bolt respectively at first vertical beam, vertical chute on second vertical beam moves adjusts the crossbeam chi, crossbeam chi end face is flushed with the horizontal light of Laser Line Marker, this moment Laser Line Marker horizontal light inswept crossbeam chi end face and tunnel tube wall, the horizontal light of Laser Line Marker to the distance of rail level absolute altitude is evacuation platform simulation girder steel upper limit height H on duty, after finishing, adjustment regulates bolt with first, second regulates bolt and support bar is fixed the crossbeam chi, prevents from that the crossbeam chi from moving down because of gravity to cause measure error.
D. the crossbeam chi measure design namely fixed central lines of track and identify at the crossbeam chi to the distance C of evacuation platform end.
E. will simulate girder steel is fixed on the crossbeam chi, and the simulation steel plate that will simulate the girder steel end is close to the section of jurisdiction wall, being stuck in the crossbeam ruler end part with the triangle steel ruler reads on the simulation girder steel, the scale L1=a+b of bottom rule, L2=a, L1, L2 is evacuation platform girder steel top, the length of bottom, wherein: a is that girder steel lower limit end is to the distance of simulating steel plate, b is the length difference of girder steel bound, horizon light line position according to Laser Line Marker on the tube wall identifies with tag line simultaneously, carry out the processing of evacuation platform girder steel according to measured data, carry out the definite location that reaches the girder steel setting height(from bottom) of boring of evacuation platform chemical anchor bolts according to the tag line on the tube wall.
When the circuit straightway, when structure or track construction had error, H was that design is definite value, when the evacuation platform girder steel is measured, central lines of track to the distance of evacuation platform end is C, and only evacuation platform girder steel top, the length L 1 of bottom, the L2 that simulates variation by the simulation girder steel gets final product.
10. the measurement mechanism of the evacuation platform in the relevant subway tunnel is characterized in that when the circuit freeboard section, the position finding of evacuation platform girder steel, and method is as follows:
A. measurement mechanism is fixed with skate on the track of finishing laying, regulate bolt, second bolt by first and about the chute on the crossbeam chi moves, adjust the crossbeam chi respectively, make to be fixed on center plumb bob on the 3rd vertical beam by the center line cutting on the crossbeam chi, overlap with the central lines of track cutting of the 3rd vertical beam bottom.
B. the horizontal light of Laser Line Marker is adjusted to the evacuation platform height H value position of the 3rd vertical beam sign, by up and down first regulate bolt, second regulate bolt respectively the vertical chute on first vertical beam, second vertical beam move and adjust the crossbeam chi, crossbeam chi end face is flushed with the horizontal light of Laser Line Marker, this moment Laser Line Marker horizontal light inswept crossbeam chi end face and tunnel tube wall, the horizontal light of Laser Line Marker to the distance of rail level absolute altitude is evacuation platform simulation girder steel upper limit height value H.The adjustment back that finishes is regulated bolt, the second adjusting bolt and support bar with first the crossbeam chi is fixed, and prevents from that the crossbeam chi from moving down because of gravity to cause measure error.
C. will simulate girder steel is fixed on the crossbeam chi, and the simulation steel plate that will simulate the girder steel end is close to the section of jurisdiction wall, being stuck in the crossbeam ruler end part with the triangle steel ruler reads on the simulation girder steel, the scale L1=a+b of bottom rule, L2=a, L1, L2 is evacuation platform girder steel top, the length of bottom, wherein: a is that girder steel lower limit end is to the distance of simulating steel plate, b is the length difference of girder steel bound, horizon light line position according to Laser Line Marker on the tube wall identifies with tag line simultaneously, carry out the processing of evacuation platform girder steel according to measured data, carry out the definite location that reaches the girder steel setting height(from bottom) of boring of evacuation platform chemical anchor bolts according to the tag line on the tube wall.
When freeboard section, structure or track construction may exist error, and the superelevation value is gradual change, and H is the design definite value, and central lines of track to the distance C of evacuation platform end is constant.When the evacuation platform girder steel is measured, at first because the variation of superelevation value causes the variation of rail level absolute altitude, so will constantly readjust the crossbeam chi by top step, make rail level absolute altitude to crossbeam chi distance be H; Next gets final product by evacuation platform girder steel top, the length L 1 of bottom, the L2 that the simulation girder steel simulates variation.
D. be applicable under track circuit straightway and the curve half freeboard section condition and use.
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| CN113550785A (en) * | 2021-08-09 | 2021-10-26 | 中铁十一局集团电务工程有限公司 | Trackless measurement construction method for subway evacuation platform |
| WO2022236892A1 (en) * | 2021-05-13 | 2022-11-17 | 方大智创科技有限公司 | Rail platform door system limit measurement rail trolley |
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