CN114659495A - Viaduct arc ramp gradient detection device and detection method - Google Patents
Viaduct arc ramp gradient detection device and detection method Download PDFInfo
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- CN114659495A CN114659495A CN202210442519.XA CN202210442519A CN114659495A CN 114659495 A CN114659495 A CN 114659495A CN 202210442519 A CN202210442519 A CN 202210442519A CN 114659495 A CN114659495 A CN 114659495A
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- 238000001514 detection method Methods 0.000 title claims abstract description 30
- 239000007921 spray Substances 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
- 238000005507 spraying Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 7
- 230000035772 mutation Effects 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims 1
- 238000001125 extrusion Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- 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
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- 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
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- 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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Abstract
The invention relates to a device and a method for detecting the gradient of an arc-shaped ramp of an viaduct, which effectively solve the problems of low spine efficiency, poor detection intuitiveness and incomplete detection in the conventional gradient detection of the arc-shaped ramp of the viaduct; this device is through on-vehicle with the fast bridge ramp that waits to detect of invariable speed, find road surface inclination angle change position fast through observing the spray width of coloured liquid, can judge that this position inclination is higher than the setting value or be less than the setting value through the spirit level survey, can get rid of the highway section that inclination is the same fast through the cooperation of this device, very big reduction detects the sample interval, improve detection efficiency, reduce the detection cost, this device is to comparing traditional detection device and method, the detection of full coverage formula has been realized, detect more comprehensively, it is faster.
Description
Technical Field
The invention relates to the field of bridge slope detection, in particular to a device and a method for detecting the slope of an arch ramp of an viaduct.
Background
A viaduct, especially a viaduct includes a plurality of arc ramps, wherein the opposite ramps require the vehicle to rotate 270 degrees on the ramps, the vehicle running on the arc ramps generates a larger centrifugal force, and the centrifugal force is larger when the vehicle speed is faster, therefore, such ramps need to be set to have a certain gradient, and the outer side of the vehicle needs to be higher than the inner side of the vehicle side, the purpose is to use the separation of the supporting force of the road surface to the vehicle to offset part of the centrifugal force of the vehicle when turning, so that the vehicle is more stable in the turning process, the side slip of the tire on the road surface is reduced, the bridge is safer to use, after the construction of the viaduct, the gradient on the ramp needs to be detected to ensure that the gradient meets the driving speed requirement of the ramps, the detection mode at the present stage is generally detected by the difference of two heights at two points, because the length of the ramp surface and the width of the road surface have errors when being paved, the slope of each part of the bridge cannot be comprehensively detected even if multi-point measurement is needed, and the traditional detection mode needs conversion calculation, so that the detection result cannot be displayed in time, and the problem of low detection efficiency is caused.
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 gradient of the arch-shaped ramp of the viaduct, and the device and the method for detecting the gradient of the arch-shaped ramp of the viaduct effectively solve the problems of low spine efficiency, poor detection intuitiveness and incomplete detection in the existing detection of the gradient of the arch-shaped ramp of the viaduct.
A slope detection device for an arch ramp of an viaduct comprises a bottom plate, a sliding block with the lower end fixed on the bottom plate is arranged in the middle of the front end of the bottom plate, a sliding rail capable of sliding left and right is slidably mounted at the upper end of the sliding block, a balancing weight is respectively fixed at the left end and the right end of the sliding rail, a water tank is arranged at the rear side of the bottom plate and contains colored liquid, an L-shaped pipe is arranged at the rear end of the water tank, a water pump capable of supplying water to the L-shaped pipe is arranged in the water tank, the horizontal pipe end of the L-shaped pipe is communicated with the water tank, a horizontal spraying pipe with two ends open is fixedly communicated with the vertical pipe end, the L-shaped pipe is communicated with the middle of the spraying pipe, a plurality of downward spray heads are uniformly distributed at intervals along the length direction of the lower end of the spraying pipe, a piston rod slidably attached to the interior of the spraying pipe is respectively inserted into the left side and the right side of the spraying pipe, a first spring capable of enabling the piston rod to be reset towards the interior of the spraying pipe is sleeved on the part of the piston rod outside the spraying pipe, the left side and the right side of the bottom plate are respectively provided with a press switch, a press switch contact is in direct contact with the balancing weight, the press switches control the opening and closing of the water pump and the power of the water pump, and the higher the extrusion degree of the press switches, the higher the output power of the water pump is.
Preferably, the lower extreme of balancing weight installs the landing leg, and the gliding gyro wheel on the bottom plate is installed to the lower extreme of landing leg.
Preferably, the left sides of the sliding blocks are respectively provided with a second spring, one end of each second spring is fixed on the sliding block, and the other end of each second spring is fixed on the corresponding balancing weight.
Preferably, the left side and the right side of the bottom plate are respectively provided with two locking bolts.
Preferably, the left side and the right side of the bottom plate are respectively provided with a vertical plate, and the press switches are fixed on the vertical plates on the corresponding sides.
A detection method of a device for detecting the gradient of an arc-shaped ramp of an viaduct comprises the following steps:
firstly, selecting a carrier vehicle and installing the device on the carrier vehicle, wherein the carrier vehicle preferably adopts a pickup truck with a constant-speed cruising function, a cargo compartment of the pickup truck is provided with an installation seat for locking, locking and fastening, 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 the compartment, a spray pipe is parallel to the bottom surface of the compartment of the vehicle, the spray pipe extends out of the tail part of the compartment and is close to the ground, and a power supply of a water pump is provided by the pickup truck;
adjusting the speed of the vehicle on a straight line section, adjusting the vehicle to a constant speed cruise mode before entering the arc ramp, entering the arc ramp at a set speed and passing the arc ramp at a constant speed, and running on different lanes of the ramp in the mode;
observing and measuring the width of the colored liquid sprayed out by the spray nozzle of the spray pipe after the vehicle passes through the spray nozzle and marking the area with the width mutation of the colored liquid;
step four, repeating the step two, improving the constant-speed cruising speed of the vehicle entering the ramp, observing and marking whether the width change positions of the sprayed colored liquid are overlapped, if the width change positions are not overlapped, repeating the step four to twice, and stopping if the width change positions are not found;
and step five, according to the marked position in the step four, calculating a specific inclination angle of the position by a level meter through a method of measuring the height difference between two points, and measuring and calculating the inclination angle by taking one or two sample points of the road section with uniform colored liquid spraying width.
The invention has novel concept, ingenious structure and strong practicability, and effectively solves the problems of low spine efficiency, poor detection intuition and incomplete detection in the slope detection of the existing viaduct arc ramp.
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 force analysis diagram of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 3, a device for detecting the gradient of an arch ramp of an viaduct comprises a bottom plate 1, a slide block 2 with a lower end fixed on the bottom plate 1 is arranged in the middle of the front end of the bottom plate 1, a slide rail 3 capable of sliding left and right is slidably mounted at the upper end of the slide block 2, a counterweight 4 is respectively fixed at the left end and the right end of the slide 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 two ends open is fixedly communicated with a vertical pipe end, the L-shaped pipe 6 is communicated with the middle of the spray pipe 7, a plurality of downward spray nozzles 8 are uniformly distributed at intervals along the length direction of the lower end of the spray pipe 7, a piston rod 9 which is slidably fitted with the interior of the spray pipe 7 is respectively inserted in each of the left side and the left side, the part of the piston rod 9 arranged outside the spray pipe 7 is sleeved with a first spring 10 which can enable the piston rod 9 to reset into the spray pipe 7, the left side and the right side of the bottom plate 1 are respectively provided with a press switch 11, the contact of the press switch 11 is directly contacted with the balancing weight 4, the press 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 press switch 11 is, the higher the output power of the water pump is.
In order to support and slide the counterweight 4, the lower end of the counterweight 4 is provided with a support leg 12, and the lower end of the support leg 12 is provided with a roller 13 sliding on the bottom plate 1.
In order to facilitate the limiting of the initial position of the counterweight block 4, the left two sides of the sliding block 2 are respectively provided with a second spring 14, one end of each second spring 14 is fixed on the sliding block 2, and the other end of each second spring is fixed on the corresponding counterweight block 4.
In order to fix the bottom plate 1 on the vehicle, two locking bolts are respectively arranged on 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 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.
A detection method of a device for detecting the gradient of an arc-shaped ramp of an viaduct comprises the following steps:
firstly, selecting a carrier vehicle and installing the device on the carrier vehicle, wherein the carrier vehicle preferably adopts a pickup truck with a constant-speed cruising function, a cargo compartment of the pickup truck is provided with an installation seat for locking, locking and fastening, 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 a compartment, a spray pipe 7 is parallel to the bottom surface of the compartment of the vehicle, the spray pipe 7 extends out of the tail part of the compartment and is close to the ground, and a water pump power supply is provided by the pickup truck;
adjusting the speed of the vehicle on a straight line section, adjusting the vehicle to a constant speed cruise mode before entering the arc ramp, entering the arc ramp at a set speed and passing the arc ramp at a constant speed, and running on different lanes of the ramp in the mode;
observing and measuring the width of the colored liquid sprayed out by the spray head 8 of the spray pipe 7 after the vehicle passes through the spray pipe and marking the area with the width mutation of the colored liquid;
step four, repeating the step two, improving the constant-speed cruising speed of the vehicle entering the ramp, observing and marking whether the width change positions of the sprayed colored liquid are overlapped, if the width change positions are not overlapped, repeating the step four to twice, and stopping if the width change positions are not found;
and step five, according to the marked position in the step four, calculating a specific inclination angle of the position by a level meter through a method of measuring the height difference between two points, and measuring and calculating the inclination angle by taking one or two sample points of the road section with uniform colored liquid spraying width.
The principle of the device can be seen from a stress analysis chart that when a vehicle with the mass m passes through an arc ramp with the radius r at a constant speed V, the centrifugal force applied to the vehicle is V2m/r, wherein the force exerted on the vehicle during driving is the supporting force F of the road surface to the vehicleNThe gravity G borne by the vehicle and the friction force of the road surface to the side of the vehicle are generated, but the sliding rail 3 on the device is slidably arranged on the sliding block 2, the balancing weight 4 is arranged on the roller 13, the friction force borne by the balancing weight is very small and does not influence the variable, so the variation can be ignored, the elastic force of the second spring 14 and the force of the balancing weight 4 extruding the press switch 11 are combined into FSThe force separation experienced may yield:
mechanical equation F in the vertical directionN1=G+FS1
The mechanical equation in the horizontal direction is: v2m/r= FS2+ FN2
Wherein FN1=cosAFN；FN2=sinAFN；FS2=cosAFN；FS1=sinAFN
Can yield FSThe absolute value, therefore, the angle of A is known to be constant FSThe value is constant, so that at constant speed the greater A directly affects FSThe smaller the range.
The device is realized by the arc ramp at constant speed, and if the inclination angle of the arc ramp is kept the same, FSKeep invariable, push the press switch 11 in the outside under invariable power and make water pump output the same, water pressure keeps unanimous this moment, therefore the rivers that water in the water tank 5 exported to spray tube 7 through L venturi tube 6 keep unanimous, water pressure makes the length that two piston rods 9 stretch out the same this moment, coloured liquid spouts the width on the road surface through spray tube 7 and shower nozzle 8 and keeps unanimous, after the slope angle change on the arc ramp, FSChange for press switch 11 loosens or presses the aggravation, and the width that spray tube 7 blowout coloured liquid can be realized to the water pump output increase and reduce homoenergetic this moment, and the road surface inclination of sudden change position has the change this moment, can detect out whether accord with the default of road surface inclination.
Compared with the traditional equipment, the device has the following advantages:
1. this device is through on-vehicle with the fast bridge ramp that waits to detect of invariable speed, finds road surface inclination angle change position fast through observing the spray width of coloured liquid, can judge that this position inclination is higher than the setting value or is less than the setting value through the spirit level survey, can get rid of the highway section that inclination is the same fast through the cooperation of this device, very big reduction detect the sample interval, improve detection efficiency, reduce and detect the cost.
2. This device carries out the spraying of the coloured liquid of full road section on detecting the road surface, and this makes whole road surface all detected, and the detection range is more comprehensive, and the contrast tradition is got some and is measured, even get some intensive detection that also can not realize whole positions again, this device is to having realized the full coverage formula and having detected, detects more comprehensively, faster.
Claims (6)
1. A device for detecting the gradient of an arc ramp of an viaduct is characterized by comprising a bottom plate (1), a sliding block (2) with the lower end fixed on the bottom plate (1) is arranged in the middle of the front end of the bottom plate (1), a sliding rail (3) capable of sliding left and right is slidably mounted 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 spraying pipe (7) with two ends open is fixedly communicated with the vertical pipe end, and the L-shaped pipe (6) is communicated with the middle of the spraying pipe (7), the lower extreme of spray tube (7) is along its length direction interval equipartition have a plurality of shower nozzles (8) down, the left and right sides of spray tube (7) respectively cartridge have one with spray tube (7) inside slip laminating installation piston rod (9), the partial cover that piston rod (9) were placed outside spray tube (7) is equipped with one and can makes piston rod (9) to spray tube (7) first spring (10) that reset in, the left and right sides of bottom plate (1) respectively is equipped with one press switch (11), press switch (11) contact and balancing weight (4) direct contact, press switch (11) control the switching and the water pump power of water pump, press switch (11) are extruded the degree higher the water pump output power is bigger.
2. The device for detecting the gradient of the arc-shaped ramp of the viaduct according to claim 1, wherein a support leg (12) is installed at the lower end of the counterweight block (4), and a roller (13) sliding on the bottom plate (1) is installed at the lower end of the support leg (12).
3. The viaduct arc-shaped ramp gradient detection device according to claim 1, wherein a second spring (14) is respectively arranged on each of the left two sides of the sliding block (2), one end of each second spring (14) is fixed on the sliding block (2), and the other end of each second spring is fixed on the corresponding counterweight (4).
4. The viaduct arc-shaped ramp gradient detection device 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 device for detecting the gradient of the arch-shaped ramp of the viaduct according to claim 1, wherein a vertical plate is arranged on each of the left side and the right side of the bottom plate (1), and the push switches (11) are fixed on the vertical plates on the corresponding sides.
6. An apparatus and a method for detecting a gradient of an arc-shaped ramp of an viaduct, wherein the method comprises using the apparatus for detecting a gradient of an arc-shaped ramp of an viaduct according to any one of claims 1- (5), and the method comprises the following steps:
firstly, selecting a carrier vehicle and installing the device on the carrier vehicle, wherein the carrier vehicle preferably adopts a pickup truck with a constant-speed cruising function, a cargo compartment of the pickup truck is provided with an installation seat for locking, locking and fastening, 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 a carriage, a spray pipe (7) is parallel to the bottom surface of the carriage of the pickup truck, the spray pipe (7) extends out of the tail part of the carriage and is close to the ground, and a water pump power supply is provided by the pickup truck;
adjusting the speed of the vehicle on a straight line section, adjusting the vehicle to a constant speed cruise mode before entering the arc ramp, entering the arc ramp at a set speed and passing the arc ramp at a constant speed, and running on different lanes of the ramp in the mode;
observing and measuring the width of the colored liquid sprayed out by a spray head (8) of a spray pipe (7) after the vehicle passes through the spray pipe and marking the area with the width mutation of the colored liquid;
step four, repeating the step two, improving the constant-speed cruising speed of the vehicle entering the ramp, observing and marking whether the width change positions of the sprayed colored liquid are overlapped, if the width change positions are not overlapped, repeating the step four to twice, and stopping if the width change positions are not found;
and step five, according to the marked position in the step four, calculating a specific inclination angle of the position through a level meter by a two-point height difference measuring method, and measuring and calculating the inclination angle of the road section with uniform colored liquid spraying width by taking one to two sample points.
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 |
Publications (2)
| Publication Number | Publication Date |
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| CN114659495A true CN114659495A (en) | 2022-06-24 |
| CN114659495B 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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Citations (8)
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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 |
| EP2826366A1 (en) * | 2013-07-18 | 2015-01-21 | Herbert Dammann GmbH | Liquid surface application method for mobile liquid distribution devices |
| CN107560599A (en) * | 2017-09-04 | 2018-01-09 | 清华大学 | A kind of road grade data processing method of feature based point sampling and curve matching |
| US20190161095A1 (en) * | 2017-11-29 | 2019-05-30 | Sperry Rail Holdings, Inc. | System and method for inspecting a rail |
| CN111307113A (en) * | 2019-02-21 | 2020-06-19 | 中国第一汽车股份有限公司 | Vehicle-mounted real-time road transverse gradient measuring device and measuring method thereof |
| 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 |
-
2022
- 2022-04-26 CN CN202210442519.XA patent/CN114659495B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107560599A (en) * | 2017-09-04 | 2018-01-09 | 清华大学 | A kind of road grade data processing method of feature based point sampling and curve matching |
| US20190161095A1 (en) * | 2017-11-29 | 2019-05-30 | Sperry Rail Holdings, Inc. | System and method for inspecting a rail |
| CN111307113A (en) * | 2019-02-21 | 2020-06-19 | 中国第一汽车股份有限公司 | Vehicle-mounted real-time road transverse gradient measuring device and measuring method thereof |
| 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 |
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