CN114659495B - Device and method for detecting gradient of arc ramp of overhead bridge - Google Patents
Device and method for detecting gradient of arc ramp of overhead bridge Download PDFInfo
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- CN114659495B CN114659495B CN202210442519.XA CN202210442519A CN114659495B CN 114659495 B CN114659495 B CN 114659495B CN 202210442519 A CN202210442519 A CN 202210442519A CN 114659495 B CN114659495 B CN 114659495B
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- arc ramp
- colored liquid
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 239000007921 spray Substances 0.000 claims description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 238000005070 sampling Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 6
- 230000005484 gravity Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/02—Details
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Road Repair (AREA)
Abstract
The invention relates to an overhead bridge arc ramp gradient detection device and a detection method, which effectively solve the problems of low spike efficiency, poor detection intuitiveness and incomplete detection in the existing overhead bridge arc ramp gradient detection; the device can quickly pass through the bridge ramp to be detected at a constant speed by vehicle-mounted, the change position of the inclination angle of the road surface can be quickly found by observing the injection width of the colored liquid, whether the inclination angle of the position is higher than a set value or lower than the set value can be judged by measuring through the level meter, the road sections with the same inclination angle can be quickly eliminated by matching the device, the detection sampling interval is greatly reduced, the detection efficiency is improved, the detection cost is reduced, and compared with the traditional detection device and method, the device realizes full-coverage detection, and the detection is more comprehensive and quick.
Description
Technical Field
The invention relates to the field of bridge gradient detection, in particular to an overhead bridge arc ramp gradient detection device and method.
Background
The overpass, especially the overpass, comprises a plurality of arc-shaped ramps, wherein the opposite ramps require the vehicles to rotate 270 degrees on the ramps, the vehicles can generate a larger centrifugal force when running on the arc-shaped ramps, and the faster the vehicle speed is, therefore, the ramps need to be provided with a certain gradient, and the outer side of the vehicles is higher than the inner side of the vehicles, the purpose is to offset the centrifugal force of part of the vehicles when turning by the separation of the supporting force of the road surface on the vehicles, so that the vehicles are more stable in the turning process, the sideslip of tires on the road surface is reduced, the bridge is safer to use, the gradient on the ramps needs to be detected after the construction of the overpass is completed, the gradient meets the running speed requirement of the ramps, the detection mode at the present stage is generally detected by a mode of two-point-side two-height difference, and the gradient of each part of the bridge needs to be detected in time due to the fact that the gradient of the road surface of the turns is long and the road surface width is in error when being paved, even if the gradient measurement is not carried out comprehensively, and the traditional detection mode needs to be calculated, the detection result is not to be converted, the detection result can not be displayed in time, and the detection efficiency is low.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the device and the method for detecting the slope of the arc ramp of the viaduct, which effectively solve the problems of low spike efficiency, poor detection intuitiveness and incomplete detection in the prior art of detecting the slope of the arc ramp of the viaduct.
The utility model provides an overhead bridge arc ramp slope detection device, the intermediate position of bottom plate front end is equipped with the slider that the lower extreme was fixed on the bottom plate, but the upper end slidable mounting of slider has a slide rail of side-to-side slidable, the both ends are fixed with a balancing weight about the slide rail respectively, the rear side of bottom plate is equipped with a water tank, contain look liquid in the water tank, the rear end of water tank is equipped with an L pipe, the water tank embeds the water pump that can supply water to L pipe, the violently pipe end and the water tank intercommunication of L pipe, the vertical tube end is fixed and is linked together and has a level and both ends open-ended spray tube, the intermediate position intercommunication of L pipe and spray tube, the lower extreme of spray tube has a plurality of shower nozzles down along its length direction interval equipartition, the piston rod of the inside slidable laminating installation of the left and right sides of spray tube respectively, the part cover that the piston rod was arranged in outside the spray tube has a first spring that can make the piston rod reset to the spray tube, the left and right sides of bottom plate respectively is equipped with a press switch, press switch and balancing weight direct contact, press switch and control water pump's power, press switch and water pump power, press switch is pressed the switch and is pressed the power of water pump to be more high output degree.
Preferably, the lower end of the balancing weight is provided with a supporting leg, and the lower end of the supporting leg is provided with a roller sliding on the bottom plate.
Preferably, a second spring is respectively arranged on the left side and the right side of the sliding block, one end of the second spring is fixed on the sliding block, and the other end of the second spring is fixed on the corresponding balancing weight.
Preferably, two locking bolts are respectively arranged on the left side and the right side of the bottom plate.
Preferably, a vertical plate is respectively arranged at the left side and the right side of the bottom plate, and the pressing switch is fixed on the vertical plate at the corresponding side.
The detection method of the device for detecting the gradient of the arc ramp of the viaduct comprises the following steps:
selecting a carrier vehicle and installing the device on the carrier vehicle, wherein the carrier vehicle is preferably a pickup truck with a constant-speed cruising function, an installation seat for locking and fastening is arranged on a pickup truck cargo bed, a bottom plate is fixed on the pickup truck through a locking screw, the bottom plate of the installation requirement device is parallel to the bottom surface of a carriage, a spray pipe is parallel to the bottom surface of the carriage, the spray pipe extends out from the tail part of the carriage and is close to the ground, and a water pump power supply is provided by the pickup truck;
step two, the speed of the carrier vehicle is regulated on a straight line section, the vehicle is regulated into a constant-speed cruising mode before entering an arc ramp, the carrier vehicle enters the arc ramp at a set speed and passes through the arc ramp at a constant speed, and the carrier vehicle runs on different lanes of the ramp in the mode;
step three, observing and measuring the width of the colored liquid sprayed by the spray pipe nozzle after the vehicle passes through and marking the area with abrupt change of the width of the colored liquid at the position;
step four, repeating the step two and improving the constant-speed cruising speed of the vehicle entering ramp, observing and marking whether the width change positions of the sprayed colored liquid are overlapped, and if not, repeating the step four for one to two times, and stopping if not, wherein the width change positions of the sprayed colored liquid are not found yet;
and fifthly, calculating a specific inclination angle of the marked position in the step four through a level meter according to a two-point height difference measuring method, and measuring and calculating the inclination angle of one or two sample points of a road section with uniform colored liquid spraying width.
The invention has novel conception, ingenious structure and strong practicability, and effectively solves the problems of low spike efficiency, poor detection intuitiveness and incomplete detection in the current detection of the arc ramp gradient of the overhead bridge.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a left side view of the present invention.
FIG. 4 is a diagram showing the stress analysis of the present invention.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the drawings.
The utility model provides a from figure 1 to figure 3, an overhead bridge arc ramp slope detection device includes a bottom plate 1, the intermediate position of bottom plate 1 front end is equipped with the slider 2 of a lower extreme fixed on bottom plate 1, slider 2's upper end slidable mounting has a slidable slide rail 3 that can left and right sides, slider 3's both ends respectively are fixed with a balancing weight 4, bottom plate 1's rear side is equipped with a water tank 5, contain the look liquid in water tank 5, water tank 5's rear end is equipped with an L shape pipe 6, water tank 5 embeds a water pump that can supply water to L shape pipe 6, L shape pipe 6's horizontal pipe end and water tank 5 intercommunication, the fixed and intercommunication of vertical pipe end has a level and both ends open-ended spray tube 7, L shape pipe 6 and spray tube 7's intermediate position intercommunication, spray tube 7's lower extreme interval equipartition has a plurality of shower nozzles 8 down along its length direction interval, the inside piston rod 9 of laminating installation of the left and right sides of spray tube 7 respectively cartridge, part cover outside spray tube 7 is equipped with a first spring 10 that can make in spray tube 7 reset to place in the spray tube 7, the top rod 9 is equipped with a left and right side spring switch 11 that presses down to the top switch 11, the power is pressed to the high power control switch 11, the power is pressed down to the power switch 11 is pressed out to the high-pressure switch 11.
In order to support and slide the balancing weight 4, a supporting leg 12 is installed at the lower end of the balancing weight 4, and a roller 13 sliding on the bottom plate 1 is installed at the lower end of the supporting leg 12.
In order to facilitate the limit of the initial position of the balancing weight 4, a second spring 14 is respectively arranged on the left side and the right side of the sliding block 2, one end of the second spring 14 is fixed on the sliding block 2, and the other end is fixed on the corresponding balancing weight 4.
In order to fix the bottom plate 1 on the vehicle, two locking bolts are respectively arranged at the left side and the right side of the bottom plate 1.
In order to fix the push switch 11, a vertical plate is respectively disposed on the left and right sides of the bottom plate 1, and the push switch 11 is fixed on the vertical plate on the corresponding side.
The detection method of the device for detecting the gradient of the arc ramp of the viaduct comprises the following steps:
selecting a carrier vehicle and installing the device on the carrier vehicle, wherein the carrier vehicle is preferably a pickup truck with a constant-speed cruising function, an installation seat for locking, locking and fastening is arranged on a pickup truck cargo compartment, a bottom plate 1 is fixed on the pickup truck through a locking screw, the bottom plate 1 of the installation requirement device is parallel to the bottom surface of the compartment, a spray pipe 7 is parallel to the bottom surface of the compartment, the spray pipe 7 extends out from the tail of the compartment and is close to the ground, and a water pump power supply is provided by the pickup truck;
step two, the speed of the carrier vehicle is regulated on a straight line section, the vehicle is regulated into a constant-speed cruising mode before entering an arc ramp, the carrier vehicle enters the arc ramp at a set speed and passes through the arc ramp at a constant speed, and the carrier vehicle runs on different lanes of the ramp in the mode;
step three, observing and measuring the width of the colored liquid sprayed by the spray nozzle 8 of the spray pipe 7 after the vehicle passes through and marking the area where the width of the colored liquid is suddenly changed;
step four, repeating the step two and improving the constant-speed cruising speed of the vehicle entering ramp, observing and marking whether the width change positions of the sprayed colored liquid are overlapped, and if not, repeating the step four for one to two times, and stopping if not, wherein the width change positions of the sprayed colored liquid are not found yet;
and fifthly, calculating a specific inclination angle of the marked position in the step four through a level meter according to a two-point height difference measuring method, and measuring and calculating the inclination angle of one or two sample points of a road section with uniform colored liquid spraying width.
The principle of the device can be seen from a stress analysis chart that the centrifugal force born by a vehicle with mass m when passing through an arc ramp with radius r at a constant speed V is V 2 m/r, wherein the force exerted on the vehicle during running is a supporting force F of the road surface on the vehicle N The gravity G, the friction force of the road surface to the vehicle side, but the slide rail 3 on the device is slidingly arranged on the slide block 2, the balancing weight 4 is arranged on the roller 13, the friction force is very small and does not affect the variable, therefore, the gravity G is negligible, the elasticity of the second spring 14 and the force of the balancing weight 4 for pressing the switch 11 are combined into F in the same direction S The force separation can be obtained by:
mechanical equation F in vertical direction N1 =G+F S1
The mechanical equation in the horizontal direction is: v (V) 2 m/r= F S2 + F N2
Wherein F is N1 =cosAF N ；F N2 =sinAF N ；F S2 =cosAF N ；F S1 =sinAF N
Can be given F S Absolute value, therefore, the angle of A is known to be F S The value is constant, so that at constant speed A is greater the effect of F is direct S The smaller the range.
The device is realized through the arc ramp at a constant speed, and if the inclination angle of the arc ramp is kept the same, F S Kept constant, the pressing switch 11 on the outside is pressed under a constant force to make waterThe output power of the pump is the same, the water pressure is kept consistent at the moment, so that the water flow output from the water tank 5 to the spray pipe 7 through the L-shaped pipe 6 is kept consistent, the water pressure at the moment enables the extending lengths of the two piston rods 9 to be the same, the width of colored liquid sprayed on the road surface through the spray pipe 7 and the spray head 8 is kept consistent, and when the inclination angle on the arc ramp is changed, F S The change makes push switch 11 loosen or press aggravate, and the water pump output increases and reduces at this moment and all can realize the width change of spray tube 7 blowout coloured liquid, and the road surface inclination of abrupt position has the change this moment, can detect whether road surface inclination accords with the default.
The device has the following advantages compared with the traditional equipment:
1. the device can quickly pass through the bridge ramp to be detected at a constant speed in a vehicle-mounted manner, the change position of the inclination angle of the road surface can be quickly found by observing the injection width of the colored liquid, whether the inclination angle of the position is higher than a set value or lower than the set value can be judged by measuring through the level meter, and the road sections with the same inclination angle can be quickly eliminated by matching the device, so that the detection sampling interval is greatly reduced, the detection efficiency is improved, and the detection cost is reduced.
2. The device carries out the spraying of the colored liquid of full highway section on detecting the road surface, and this makes whole road surface all detected, and detection scope is more comprehensive, compares traditional get the some measure, gets the some even again intensive also can not realize the detection of all positions, and this device has realized full coverage formula detection, detects more comprehensively, more quick compared with traditional detection device and method.
Claims (5)
1. The method is used for an overhead bridge arc ramp gradient detection device, the device comprises a bottom plate (1), a sliding block (2) with the lower end fixed on the bottom plate (1) is arranged at the middle position of the front end of the bottom plate (1), a sliding rail (3) capable of sliding left and right is slidably arranged at the upper end of the sliding block (2), a balancing weight (4) is respectively fixed at the left end and the right end of the sliding rail (3), a water tank (5) is arranged at the rear side of the bottom plate (1), colored liquid is contained in the water tank (5), an L-shaped pipe (6) is arranged at the rear end of the water tank (5), a water pump capable of supplying water to the L-shaped pipe (6) is arranged in the water tank (5), the transverse pipe end of the L-shaped pipe (6) is communicated with the water tank (5), a horizontal spray pipe (7) with the two ends open is fixedly communicated with the middle position of the spray pipe (7), a plurality of downward spray heads (8) are respectively fixed at the lower ends of the sliding rail (3) along the length direction of the sliding rail, a plurality of downward spray heads (7) are respectively arranged at the lower ends of the spray pipe (7), a plurality of springs (9) are respectively inserted into the spray pipe (7) and a piston rod (9) are respectively arranged at the two sides of the spray pipe (7) and a piston rod (9) which can be inserted into a piston rod (9), the left side and the right side of the bottom plate (1) are respectively provided with a push switch (11), the contact of the push switch (11) is in direct contact with the balancing weight (4), the push switch (11) controls the opening and closing of the water pump and the power of the water pump, and the higher the extrusion degree of the push switch (11), the higher the output power of the water pump;
the method comprises the following steps:
selecting a carrier vehicle and installing the device on the carrier vehicle, wherein the carrier vehicle is a pickup truck with a constant-speed cruising function, a loading seat for locking and fastening is arranged on a pickup truck cargo bed, a bottom plate (1) is fixed on the pickup truck through a locking screw, the bottom plate (1) is parallel to the bottom surface of a carriage, a spray pipe (7) is parallel to the bottom surface of the carriage, the spray pipe (7) extends out from the tail part of the carriage and is close to the ground, and a water pump power supply is provided by the pickup truck;
step two, the speed of the carrier vehicle is regulated on a straight line section, the vehicle is regulated into a constant-speed cruising mode before entering an arc ramp, the carrier vehicle enters the arc ramp at a set speed and passes through the arc ramp at a constant speed, and the carrier vehicle runs on different lanes of the ramp in the mode;
step three, observing and measuring the width of the colored liquid sprayed by a spray nozzle (8) of a spray pipe (7) after the vehicle passes through and marking a region with abrupt width change of the colored liquid;
step four, repeating the step two and improving the constant-speed cruising speed of the vehicle entering ramp, observing and marking whether the width change positions of the sprayed colored liquid are overlapped, and if not, repeating the step four for one to two times, and stopping if not, wherein the width change positions of the sprayed colored liquid are not found yet;
and fifthly, calculating the inclination angle of the marked position in the step four through a level meter by a method of measuring the height difference at two points, and measuring and calculating the inclination angle of one to two sample points on a road section with uniform colored liquid spraying width.
2. The method for detecting the slope of the arc ramp of the viaduct according to claim 1, wherein the lower end of the balancing weight (4) is provided with a supporting leg (12), and the lower end of the supporting leg (12) is provided with a roller (13) sliding on the bottom plate (1).
3. The method for detecting the slope of the arc ramp of the viaduct according to claim 1, wherein a second spring (14) is respectively arranged on the left side and the right side of the sliding block (2), one end of the second spring (14) is fixed on the sliding block (2), and the other end of the second spring is fixed on the corresponding balancing weight (4).
4. The method for detecting the gradient of the arc ramp of the viaduct according to claim 1, wherein two locking bolts are respectively arranged on the left side and the right side of the bottom plate (1).
5. The method for detecting the slope of an arc ramp of an elevated bridge according to claim 1, wherein a vertical plate is respectively arranged on the left side and the right side of the bottom plate (1), and the push switch (11) is fixed on the vertical plate on the corresponding side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210442519.XA CN114659495B (en) | 2022-04-26 | 2022-04-26 | Device and method for detecting gradient of arc ramp of overhead bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210442519.XA CN114659495B (en) | 2022-04-26 | 2022-04-26 | Device and method for detecting gradient of arc ramp of overhead bridge |
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| Publication Number | Publication Date |
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| CN114659495A CN114659495A (en) | 2022-06-24 |
| CN114659495B true CN114659495B (en) | 2024-02-23 |
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| CN202210442519.XA Active CN114659495B (en) | 2022-04-26 | 2022-04-26 | Device and method for detecting gradient of arc ramp of overhead bridge |
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| US10753722B1 (en) * | 2011-09-06 | 2020-08-25 | SeeScan, Inc. | Systems and methods for locating buried or hidden objects using sheet current flow models |
| CN216206282U (en) * | 2021-08-03 | 2022-04-05 | 安徽省交科检测研究院有限责任公司 | Road surface slope detection device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10836407B2 (en) * | 2017-11-29 | 2020-11-17 | Sperry Rail Holdings, Inc. | System and method for inspecting a rail |
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2022
- 2022-04-26 CN CN202210442519.XA patent/CN114659495B/en active Active
Patent Citations (7)
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| JP2004028807A (en) * | 2002-06-26 | 2004-01-29 | Sumitomo Rubber Ind Ltd | Method and apparatus for calculating road surface grade applicable to four-wheel drive vehicle, and program for calculating road surface grade |
| CN101619970A (en) * | 2009-08-21 | 2010-01-06 | 潘玉利 | Method for measuring vertical section of road surface |
| US10753722B1 (en) * | 2011-09-06 | 2020-08-25 | SeeScan, Inc. | Systems and methods for locating buried or hidden objects using sheet current flow models |
| EP2826366A1 (en) * | 2013-07-18 | 2015-01-21 | Herbert Dammann GmbH | Liquid surface application method for mobile liquid distribution devices |
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