CN111337107B - Equipment and method for observing flow state of concrete pumping in arch bridge pipe - Google Patents
Equipment and method for observing flow state of concrete pumping in arch bridge pipe Download PDFInfo
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- CN111337107B CN111337107B CN201811559096.XA CN201811559096A CN111337107B CN 111337107 B CN111337107 B CN 111337107B CN 201811559096 A CN201811559096 A CN 201811559096A CN 111337107 B CN111337107 B CN 111337107B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
- G01C11/02—Picture taking arrangements specially adapted for photogrammetry or photographic surveying, e.g. controlling overlapping of pictures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/76—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats characterised by the construction of the float
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
Abstract
The invention discloses an equipment and a method for observing the flowing state of concrete pumping in an arch bridge pipe, wherein the equipment comprises an arch rib, a camera device, a video acquisition instrument, a power supply and an annular waterproof lamp belt, the arch rib is formed by butting a plurality of sections of steel pipes through flange plates, the flange plates are connected through bolts and are provided with lining pipes, the top of the inner side wall of each steel pipe is provided with the camera device, the camera device comprises a camera, the camera is over against the joint of the flange plates of the steel pipes, the waterproof lamp belt is arranged around the lining pipes of the flange plates on the inner side of the arch rib, the video acquisition instrument is arranged outside the arch rib, the camera device and the video acquisition instrument are respectively connected with the power supply through conducting wires, and the camera device is connected with the video acquisition instrument through signal wires. The technical problem that the flow form of concrete in the pipe is difficult to observe, particularly the flow form of the flange position, can be solved.
Description
Technical Field
The invention relates to the technical field of steel pipe concrete pouring equipment, in particular to equipment and a method for observing the flowing state of concrete pumping in an arch bridge pipe.
Background
The bridge of China develops rapidly, and the arch bridge has obvious technical economy under suitable conditions. Meanwhile, when China enters a high-speed rail era, the steel pipe concrete arch bridge has the advantages of good economy, high rigidity and good durability. Along with the construction of the hidden line in the river, the demand of the long-span concrete-filled steel tube arch bridge is increased dramatically.
The concrete-filled steel tube arch bridge has very obvious economic value, and compared with a bridge with the same span, the construction cost of the concrete-filled steel tube arch bridge is reduced by half in an area with proper geology. In recent 20 years, the development of the concrete-filled steel tube arch bridge in China is rapid, and the span is quite rare in the development history of the bridge. At present, China builds more than 400 steel pipe concrete arch bridges, wherein the maximum span is 530 meters, and the steel pipe concrete arch bridges are also already mature to be applied to railway construction.
Concrete pouring in the steel tube is one of key technologies for construction of the steel tube concrete arch bridge and is also a hot point problem of research. The development of high-performance self-compacting concrete and the perfection of a corresponding pumping pouring process basically solve the problem, but the inner flanges and the horizontal sections of the arch tops between the arch rib sections are easy to be empty in the concrete-filled steel tube pouring process, so that the stress performance of the bridge is influenced, and hidden troubles are brought to the durability of the bridge. The search for a method for improving the concrete filled steel tube filling compactness becomes an urgent task for perfecting the concrete filled steel tube construction process.
The vacuum auxiliary grouting process is simple and feasible in the basic principle applied in the concrete pouring in the arch rib pipe, and a large vacuum pump is adopted to vacuumize the arch rib pipe, so that negative pressure is generated in the pipe and the pipe is stable; then pumping high-performance concrete from the arch springing in a grading manner, and pumping the concrete simultaneously in a two-half-span symmetry mode by taking the arch crown as a symmetry line according to the principle of symmetry and balanced loading; and continuously vacuumizing and maintaining the vacuum degree in the whole process until the pumping is finished.
Concrete pouring in the steel tube is one of key technologies for construction of the steel tube concrete arch bridge. However, the inner flanges and the horizontal sections of the arch crown between the arch rib sections are easy to be separated during the concrete-filled steel tube pouring process, so that the stress performance of the bridge is influenced, and hidden troubles are brought to the durability of the bridge. The method for pouring the concrete in the pipe by adopting the vacuum auxiliary process can obviously improve the engineering quality, and has simple operation and good economical efficiency. However, the flow pattern of the concrete in the pipe during the construction process has not been confirmed. The research on the flow form of the concrete in the pipe under the vacuum-assisted grouting can provide an important research basis for optimizing the concrete pumping process in the pipe, the strength formation and development rule of the concrete in the pipe, the mechanism and rule of the debonding and debonding formation of the arch rib and the like. Therefore, the observation of the flow form in the pipe, especially the research of the flow form at the position of the flange plate, has important significance for the concrete pumping construction process of the steel pipe and the performance research of the pumped concrete.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the equipment for observing the flowing state of concrete pumped in the arch bridge pipe is provided, so that the technical problem that the flowing state of the concrete in the pipe is difficult to observe, particularly the flowing state of the flange plate position is difficult to observe is solved.
The invention solves another technical problem that: provides an observation method for concrete pumping flow state in a steel pipe concrete arch bridge pipe.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides an intraductal concrete pumping of arched bridge mobile form observation equipment, includes arch rib, camera device, video acquisition instrument, power and annular waterproof lamp area, the arch rib is formed through the ring flange butt joint by a plurality of sections steel pipes, the ring flange passes through bolted connection and is provided with interior bushing pipe, install at the top of steel pipe inside wall camera device, camera device includes the camera, the camera is just right the ring flange junction of steel pipe, waterproof lamp area encircles the bushing pipe setting in the ring flange of arch rib inboard, video acquisition instrument install in the arch rib is outside, camera device and video acquisition instrument respectively with the power passes through the conductor wire and connects, camera device with video acquisition instrument passing signal line connects, waterproof lamp area is from taking the power.
As an improved mode, the side wall of the arch rib steel pipe is provided with an outlet and welded with an outgoing steel pipe, a power line of the camera device penetrates out of the outgoing steel pipe to be connected with the power supply, a signal line of the camera device penetrates out of the outgoing steel pipe to be connected with the video acquisition instrument, and the outgoing steel pipe is filled with high-strength high-pressure iron cement to seal the outgoing steel pipe.
As an improved mode, the waterproof lamp strip is provided with light source lamps which are different in color and arranged at intervals, and the light source lamps on the left side and the right side of the waterproof lamp strip are symmetrical in color.
As an improved mode, the camera device further comprises a camera mounting steel plate and a lamp shade, the camera mounting steel plate is welded on the inner side wall of the arch rib steel pipe, the camera is mounted on the camera mounting steel plate, the lamp shade is detachably mounted on the inner side wall of the steel pipe, the lamp shade is made of transparent materials, and the camera device is located between the lamp shade and the sealing space between the steel pipes.
As an improved mode, the camera device is installed on an inner flange or an arch top horizontal section between middle arch rib sections of the concrete-filled steel tube arch bridge, the camera device is arranged on the front side and the rear side of each arch rib flange, and the camera is a high-definition night vision miniature camera.
As an improved mode, the improved arc-shaped display device further comprises a monitoring device, the monitoring device comprises an annular seat ring and an indicating ball, wherein fluorescent height scales are arranged on two sides of the seat ring, the seat ring is installed on the inner side wall of the inner lining pipe or the inner side wall of the arch rib steel pipe, a left sliding groove and a right sliding groove are formed in the seat ring, the left sliding groove and the right sliding groove are both arc-shaped and bilaterally symmetrical, the indicating ball is an inflatable plastic ball, the density of the indicating ball is smaller than that of concrete, a reflective material is arranged on the surface of the indicating ball, a sliding block is fixedly arranged on the indicating ball, one indicating ball is arranged in the left sliding groove in a sliding mode through the sliding block, one indicating ball is arranged in the right sliding groove in a sliding mode through the sliding block, and the waterproof lamp strip is arranged at the front part of the monitoring device and is positioned between the monitoring device and the camera device.
In order to solve the second technical problem, the invention adopts the following technical scheme: a method for observing the pumping flow form of concrete in a steel tube concrete arch bridge pipe comprises the following steps:
1) butting steel pipes into arch ribs, wherein adjacent steel pipes are connected through a flange plate, and a lining pipe is arranged in the flange plate;
2) arranging a wire outlet on the side wall of the steel pipe and welding a wire outlet steel pipe, welding a camera mounting steel plate on the inner top wall of the arch rib steel pipe, mounting a camera device on the camera mounting steel plate and enabling the camera of the camera device to be opposite to the flange plate joint of the steel pipe, mounting a monitoring device in the lining pipe, wherein the monitoring device comprises an annular seat ring and indicating balls, the seat ring is mounted on the inner side wall of the lining pipe, 2 indicating balls are respectively mounted on the left side and the right side 2 of the seat ring in a sliding manner, a waterproof lamp belt is mounted at the front part of the monitoring device, power wires of the waterproof lamp belt and the camera device penetrate through the wire outlet steel pipe to be connected with a power supply, and a signal wire of the camera device penetrates through the wire outlet steel pipe to be connected with a video acquisition instrument;
3) and (5) pouring concrete into the arch rib, and observing the concrete pumping flow form through a video acquisition instrument.
The technical effect obtained by adopting the technical scheme is as follows:
according to the method, the cameras are arranged inside the arch ribs of the concrete-filled steel tube arch bridge, light sources such as underwater lamp bands are supplemented at key observation positions such as the flange plates, the video receiving instrument is connected outside the arch ribs, the observation of the concrete flow form in the steel tube of the arch bridge, particularly the observation of the flow form at the flange plate position, can be carried out at any time, and the observation results can provide an important research foundation for optimizing the problems of the concrete pumping process in the tube, the formation and development rule of the concrete strength in the tube, the formation mechanism and rule of the debonding and debonding of the arch ribs and the like. The observation equipment can realize observation of the flowing form of the concrete in the tube only by slightly improving the original arch rib structure, does not need special instruments and equipment, and has simple and convenient installation and strong universality.
The side wall of the arch rib steel pipe is provided with the wire outlet and welded with the wire outlet steel pipe, the waterproof lamp belt and the power line of the camera device penetrate out of the wire outlet steel pipe and are connected with the power supply, the signal line of the camera device penetrates out of the wire outlet steel pipe and is connected with the video acquisition instrument, the wire outlet welding steel pipe is filled with high-strength high-pressure iron cement for sealing, the wire and the signal line in the arch rib steel pipe penetrate out of the wire outlet steel pipe and are connected with the power supply or the video acquisition instrument, and the wire outlet steel pipe is filled with the high-strength high-pressure iron cement for realizing high-strength sealing of the arch rib steel pipe after threading.
Because waterproof lamp area is provided with the light source lamp that the colour is different and the interval sets up, the waterproof lamp area left and right sides the colour of light source lamp is symmetrical mutually, and at the in-process of pouring concrete into the arch rib steel pipe, the concrete can be followed up the light source lamp that covers the different colours in waterproof lamp area gradually down, and the concrete that can be obvious sensing and waterproof lamp area send out light the position of partly juncture on the video acquisition appearance, and the position that can observe the concrete top surface and then observe its mobile form through the colour of observing juncture lamp area or the quantity of the light source lamp that the surplus does not cover.
Because camera device still includes fixed camera installation steel sheet and lamp shade, fixed camera installation steel sheet welding is in on the arch rib steel pipe inside wall, the camera is installed on the fixed camera installation steel sheet, lamp shade demountable installation be in on the inside wall of steel pipe, the lamp shade is transparent material, camera device is located the lamp shade with in the confined space between the steel pipe, the lamp shade can avoid the concrete to contact camera device, and after finishing observing, the lamp shade can carry out used repeatedly to camera device down.
The camera device is arranged on an inner flange or a vault horizontal section between middle arch rib sections of the concrete-filled steel tube arch bridge, the camera device is arranged on the front side and the rear side of the flange plate, and the camera is a high-definition night vision miniature camera, so that the observation definition is improved.
The monitoring device comprises an annular seat ring and an indicating ball, wherein fluorescent height scales are arranged on the seat ring, the seat ring is arranged on the inner side wall of the lining pipe, a left chute and a right chute are arranged on the seat ring, the left chute and the right chute are both arc-shaped and bilaterally symmetrical, the indicating ball is an inflatable plastic ball, the density of the indicating ball is less than that of concrete, a reflecting material is arranged on the surface of the indicating ball, a sliding block is fixedly arranged on the indicating ball, the indicating ball is arranged in the left chute in a sliding manner through the sliding block, the indicating ball is arranged in the right chute in a sliding manner through the sliding block, the waterproof lamp belt is arranged between the monitoring device and the camera device, the indicating ball gradually floats upwards along with the rising of the concrete in the concrete pouring process, and the indicating ball with the reflecting material arranged on the surface reflects light of the waterproof lamp belt to the camera, the position of the indicating ball can be clearly seen through the video receiver, and the height of the concrete can be distinguished by observing the indicating ball and the fluorescent scale corresponding to the indicating ball.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a structural sectional view of a first embodiment of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a sectional view of a second embodiment of the present invention;
FIG. 5 is a cross-sectional view taken along line C-C of FIG. 4;
in the figure, 1-camera, 2-camera installation steel plate, 3-outlet steel pipe, 4-lining pipe, 5-video acquisition instrument, 6-power supply, 7-waterproof lamp belt, 8-conductive wire, 9-arch rib steel pipe, 10-flange plate, 11-seat ring and 12-indicating ball.
Detailed Description
As shown in fig. 1 to 3, an observation device for observing the flow form of concrete pumping in an arch bridge pipe is mainly used for observing the flow form of concrete pumping in a steel pipe concrete arch bridge pipe in an experiment, and mainly comprises an arch rib, a camera device, a video acquisition instrument 5, a power supply 6 and an annular waterproof lamp strip 7, wherein the arch rib is formed by butting a plurality of sections of steel pipes 9 through flanges 10, the flanges 10 are connected through bolts and are provided with lining pipes 4, the top of the inner side wall of each steel pipe 9 is provided with the camera device, the camera device comprises a camera 1, the camera 1 is a high-definition night vision miniature camera 1 to improve the observation definition, the camera device further comprises a fixed camera mounting steel plate 2 and a lamp shade (not shown in the figure), the camera mounting steel plate 2 is welded on the inner side wall of the steel pipe 9 of the arch rib, and the camera 1 is mounted on the camera mounting steel plate 2, lampshade demountable installation is on the inside wall of steel pipe, and the lamp shade is transparent material, and camera device is located the confined space between lamp shade and the steel pipe, and the lamp shade can avoid the concrete to contact camera device, and after finishing surveing, removable lamp shade carries out used repeatedly to camera device. The camera 1 is opposite to the joint of the flange plate 10 of the steel pipe,
the waterproof lamp area 7 encircles the bushing pipe setting in the ring flange 10 of rib inboard, and waterproof lamp area 7 is provided with the different and light source lamp that the interval set up of colour, and the colour of the light source lamp of the waterproof lamp area 7 left and right sides is symmetrical mutually, and waterproof lamp area 7 is from taking power supply. In the concrete pouring process into the arch rib steel pipe 9, the concrete can be from up covering the light source lamp of the different colours in waterproof lamp area 7 gradually down, the position that the concrete that can be obvious sensing and the luminous portion of waterproof lamp area are bordered on video acquisition instrument 5, the position that can observe the concrete top surface and then observe its mobile form through the colour of observing juncture lamp area or the quantity of the light source lamp that the surplus does not cover.
Example two
As shown in fig. 4 and 5, the present embodiment has the same structure as the first embodiment, except that the monitoring device further includes a monitoring device, the monitoring device includes an annular seat ring 11 and an indicating ball 12, both sides of the seat ring 11 are provided with fluorescent height scales, the seat ring 11 is mounted on the inner side wall of the lining pipe, the seat ring 11 is provided with a left chute and a right chute, both the left chute and the right chute are arc-shaped and bilaterally symmetrical, the indicating ball 12 is an inflatable plastic ball, the density of the indicating ball 12 is smaller than that of concrete, the surface of the indicating ball 12 is provided with a reflective material, the indicating ball 12 is fixedly provided with a sliding block, the indicating ball 12 is slidably provided in the left chute through the sliding block, the indicating ball 12 is slidably provided in the right chute through the sliding block, the waterproof light strip 7 is disposed between the monitoring device and the camera device, the indicating ball 12 gradually floats upwards along with the rising of the concrete during the concrete pouring process, the surface is equipped with the light of waterproof lamp area 7 of instruction ball 12 reflection to camera 1 of reflective material, and the position of seeing instruction ball 12 that can be clear through the video receiver, can discern the height of concrete through observing the fluorescence scale that instruction ball 12 and instruction ball 12 correspond. The seat 11 can also be mounted on the inner side wall of the ribbed steel tube 9 for a greater detection range.
The observation method of the observation equipment comprises the following steps: the method comprises the following steps:
1) the steel pipes 9 are butted to form arch ribs, the adjacent steel pipes 9 are connected through a flange plate 10, and a lining pipe 4 is arranged in the flange plate 10.
2) The method comprises the steps that a wire outlet is formed in the side wall of a steel pipe 9, a wire outlet steel pipe 3 is welded, a camera mounting steel plate 2 is welded on the inner side top wall of an arch rib steel pipe 9, a camera device is mounted on the camera mounting steel plate 2, the camera 1 of the camera device is opposite to the joint of a flange plate 10 of the steel pipe 9, a monitoring device is mounted in a lining pipe 4 and comprises an annular seat ring 11 and indicating balls 12, the seat ring 11 is mounted on the inner side wall of the lining pipe 4, the 2 indicating balls 12 are respectively mounted on the left side and the right side 2 of the seat ring 11 in a sliding mode, a waterproof lamp belt 7 is mounted at the front portion of the monitoring device, a power wire 8 of the waterproof lamp belt 7 and a power wire 8 of the camera device penetrate through the wire outlet steel pipe 3 to be connected with a power source 6, and a signal wire of the camera device penetrates through the wire outlet steel pipe 3 to be connected with a video acquisition instrument 5.
3) Concrete is poured into the arch rib, and the concrete pumping flow form is observed through the video acquisition instrument 5.
The camera device of the observation equipment is arranged on an inner flange or a vault horizontal section between middle arch rib sections of the concrete-filled steel tube arch bridge, and the observation equipment can be arranged on the front side and the rear side of the flange plate 10, so that the motion forms of concrete on the two sides of the flange plate 10 can be observed.
It should be apparent that the foregoing description and illustrations are by way of example only and are not intended to limit the present disclosure, application or uses. While embodiments have been described in the embodiments and depicted in the drawings, the present invention is not limited to the particular examples illustrated by the drawings and described in the embodiments as the best mode presently contemplated for carrying out the teachings of the present invention, and the scope of the present invention will include any embodiments falling within the foregoing description and the appended claims.
Claims (6)
1. The equipment for observing the flowing state of concrete pumping in the arch bridge pipe is characterized by comprising an arch rib, a camera device, a video acquisition instrument, a power supply and an annular waterproof lamp belt, wherein the arch rib is formed by butting a plurality of sections of steel pipes through flange plates, the flange plates are connected through bolts and are provided with lining pipes, the camera device is installed at the top of the inner side wall of each steel pipe and comprises a camera, the camera is right opposite to the joint of the flange plates of the steel pipes, the waterproof lamp belt is arranged around the lining pipes of the flange plates on the inner side of the arch rib, the video acquisition instrument is installed outside the arch rib, the camera device and the video acquisition instrument are respectively connected with the power supply through conducting wires, the camera device is connected with the video acquisition instrument through signal wires, and the waterproof lamp belt is provided with the power supply,
still include monitoring devices, monitoring devices includes annular seat circle and instruction ball, the seat circle both sides all are equipped with fluorescent height scale, the seat circle install in the inside wall of interior bushing pipe or on the arch rib steel pipe inside wall, establish left spout and right spout on the seat circle, left side spout with right spout is arc and bilateral symmetry, the instruction ball is for aerifing the plastic ball, the density of instruction ball is less than the density of concrete, it is equipped with reflecting material to instruct the ball surface, it is equipped with a slider to fix on the instruction ball, it is equipped with one to slide through the slider in the spout of a left side the instruction ball, it is equipped with one to slide through the slider in the spout of a right side the instruction ball, waterproof lamp area set up in monitoring devices is anterior and be located monitoring devices with between the camera device.
2. The apparatus for observing the flowing state of concrete pumping in an arch bridge pipe according to claim 1, wherein an outlet is arranged on the side wall of the arch rib steel pipe and welded with an outlet steel pipe, a power line of the camera device penetrates out of the outlet steel pipe and is connected with a power supply, a signal line of the camera device penetrates out of the outlet steel pipe and is connected with the video acquisition instrument, and the outlet steel pipe is filled with high-strength high-pressure iron cement for sealing.
3. The apparatus for observing the flowing state of concrete pumped in an arch bridge pipe according to claim 1, wherein said waterproof lamp strip is provided with light source lamps having different colors and arranged at intervals, and the colors of said light source lamps on the left and right sides of said waterproof lamp strip are symmetrical to each other.
4. The apparatus for observing concrete pumping flow pattern in arch bridge pipe according to claim 1, wherein said camera device further comprises a camera mounting steel plate and a lampshade, said camera mounting steel plate is welded on the inner side wall of said arch rib steel pipe, said camera is mounted on said camera mounting steel plate, said lampshade is detachably mounted on the inner side wall of said arch rib steel pipe, said lampshade is made of transparent material, said camera device is located in the sealed space between said lampshade and said steel pipe.
5. The apparatus for observing the flowing state of concrete pumped in an arch bridge pipe according to claim 1, wherein the cameras are installed on an inner flange or a horizontal arch crown section between arch rib sections of the concrete-filled steel pipe arch bridge, the cameras are arranged on the front side and the rear side of the arch rib flange, and the cameras are high-definition night-vision miniature cameras.
6. A method for observing the flow form of concrete pumping in an arch bridge pipe is characterized by comprising the following steps:
1) butting steel pipes into arch ribs, wherein adjacent steel pipes are connected through a flange plate, and a lining pipe is arranged in the flange plate;
2) arranging a wire outlet on the side wall of the steel pipe and welding a wire outlet steel pipe, welding a camera mounting steel plate on the inner top wall of the arch rib steel pipe, mounting a camera device on the camera mounting steel plate and enabling the camera of the camera device to be opposite to the flange plate joint of the steel pipe, mounting a monitoring device in the lining pipe, wherein the monitoring device comprises an annular seat ring and indicating balls, the seat ring is mounted on the inner side wall of the lining pipe, 2 indicating balls are respectively mounted on the left side and the right side 2 of the seat ring in a sliding manner, a waterproof lamp belt is mounted at the front part of the monitoring device, power wires of the waterproof lamp belt and the camera device penetrate through the wire outlet steel pipe to be connected with a power supply, and a signal wire of the camera device penetrates through the wire outlet steel pipe to be connected with a video acquisition instrument;
3) and (5) pouring concrete into the arch rib, and observing the concrete pumping flow form through a video acquisition instrument.
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| CN201811559096.XA CN111337107B (en) | 2018-12-19 | 2018-12-19 | Equipment and method for observing flow state of concrete pumping in arch bridge pipe |
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| CN201811559096.XA CN111337107B (en) | 2018-12-19 | 2018-12-19 | Equipment and method for observing flow state of concrete pumping in arch bridge pipe |
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| CN105353111B (en) * | 2015-12-16 | 2016-08-17 | 山东科技大学 | A kind of concrete filled steel tube bow member perfusion analog systems and effect assessment method |
| CN106501496B (en) * | 2016-10-28 | 2019-04-02 | 重庆交通大学 | A kind of visual CFST Arch Bridge pipe inner concrete perfusion experimental rig |
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Effective date of registration: 20211217 Address after: 530004 100 East University Road, XiXiangTang District, Nanning, the Guangxi Zhuang Autonomous Region Patentee after: GUANGXI University Patentee after: China National Railway Group Co.,Ltd. Patentee after: CHINA RAILWAY QINGHAI-TIBET GROUP Co.,Ltd. Patentee after: CHINA RAILWAY ERYUAN ENGINEERING GROUP Co.,Ltd. Patentee after: Tibet Railway Construction Co.,Ltd. Address before: 530004 No. 100, University East Road, XiXiangTang District, Nanning City, Guangxi Zhuang Autonomous Region Patentee before: GUANGXI University Patentee before: CHINA RAILWAY QINGHAI-TIBET GROUP Co.,Ltd. Patentee before: CHINA RAILWAY ERYUAN ENGINEERING GROUP Co.,Ltd. |