CN104972554A - Automatic spray and maintenance system for T-shaped prefabricated beam - Google Patents
Automatic spray and maintenance system for T-shaped prefabricated beam Download PDFInfo
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- CN104972554A CN104972554A CN201510445762.7A CN201510445762A CN104972554A CN 104972554 A CN104972554 A CN 104972554A CN 201510445762 A CN201510445762 A CN 201510445762A CN 104972554 A CN104972554 A CN 104972554A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
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- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Bridges Or Land Bridges (AREA)
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Abstract
The invention discloses an automatic spray and maintenance system for a T-shaped prefabricated beam. The system comprises a water source, a variable-frequency booster water pump, a water supply control system, a water supply pipeline and rotary telescopic sprayers. The water source, the variable-frequency booster water pump, the water supply control system, the water supply pipeline and the rotary telescopic sprayers are sequentially connected. The water supply pipeline comprises a water supply main pipe, a water supply branch pipe and a maintenance branch pipe which are sequentially communicated. The rotary telescopic sprayers are communicated with the maintenance branch pipe. The maintenance branch pipe is arranged in a prefabricated pedestal. The prefabricated pedestal is provided with side face reserved holes and end face preserved holes. The rotary telescopic sprayers are arranged in the side face reserved holes and the end face preserved holes. When water pressure reaches preset water pressure, the rotary telescopic sprayers extend out of the side face reserved holes and the end face preserved holes and spray water in a rotary mode. The side faces and the end faces of the T-shaped beam, the bottom face of a beam flange and the surface of a transverse partition board adjacent to the sprayers are within the spraying range. The system solves the problems that according to existing manual spray and maintenance, spray is not uniform, time consumed for maintenance is long and the maintenance effect is unstable.
Description
Technical field
The present invention relates to the beam prefabricated maintenance technology field of T, particularly relate to a kind of automatic spray curing system of prefabricated T-shaped beam.
Background technology
Precast beam refers in advance at precasting yard batch making, then is transported to the beam carrying out according to designing requirement installing in job site.The material of precast beam is concrete and steel etc.Precast beam can be divided into multiple according to its shape, and wherein, T-shaped beam is more common one.T-shaped beam widely uses in national science of bridge building.T-shaped beam refers to that cross section is T-shaped beam, T-shaped beam both sides are chosen part and are called the edge of a wing, mid portion is called beam rib, the equally distributed diaphragm plate perpendicular to beam rib surface is provided with along on T-shaped beam length direction in beam rib both sides, therefore the surface area of T-shaped beam is larger, this just causes T-shaped beam can distribute more heat in prefabrication process, but carry out in the prefabricated general precasting yard in the wild of T-shaped beam, because the radiating condition of field precasting yard is not enough, be unfavorable for that T-shaped beam internal heat is distributed, T-shaped beam may be caused to crack or be out of shape, make T-shaped beam compressive property poor.We know, T-shaped beam be used for bridge bearing, compressive property has strict requirement, this just require T-shaped beam prefabricated time intensity must meet certain requirement.Also just for these reasons, generally to carry out maintenance to prefabricated T-shaped beam, such as, take the mode of shower water to carry out maintenance, and heat can be distributed by fast, the quality problems such as avoid causing T beam cracking or intensity is not up to standard.
The method of existing employing shower water maintenance T beam is mostly nourishment is main, nourishment because of its shortcoming such as randomness and poor repeatability, easily cause maintenance not in time, non-uniform spraying, thus the quality problems of T beam may be caused.And, nourishment consuming time longer, labor cost is high, the precision of maintenance also varies with each individual, maintenance effect is very unstable.
In sum, inventing a kind of T-shaped beam maintaining method or the system that can solve the problem of existing nourishment, is those skilled in the art's problem demanding prompt solutions.
Summary of the invention
The invention provides a kind of automatic spray curing system of prefabricated T-shaped beam, to solve the problem of non-uniform spraying, maintenance length consuming time and maintenance effect instability in prior art existing for artificial spray maintenance method.
The invention discloses following technical scheme:
The automatic spray curing system of prefabricated T-shaped beam, prefabricated T-shaped beam is arranged on described precast pedestal on the surface, comprises the water source, frequency-conversionbooster booster water pump, water management system, supply channel and the rotary extension shower nozzle that connect successively.Described supply channel comprise be communicated with successively vibration means for main pipe for supplying water road, water supply bye-pass and maintenance bye-pass, described rotary extension shower nozzle is connected with described maintenance bye-pass.That is, after during maintenance, frequency-conversionbooster booster water pump extracts from water source, finally can spray from rotary extension shower nozzle.Described water management system makes spray-water realize automatically controlling.
In order to solve problems of the prior art, being specifically constructed as follows of the automatic spray curing system of prefabricated T-shaped beam provided by the invention:
Described maintenance bye-pass is arranged in described precast pedestal; Described maintenance bye-pass is arranged along the center line of described pedestal, and described center line is parallel with the length direction of described prefabricated T-shaped beam;
Described precast pedestal comprises the end face of two sides parallel with the length direction of described prefabricated T-shaped beam and two and described lateral vertical; Described side is arranged side preformed hole, described end face arranges end face preformed hole;
Described rotary extension shower nozzle is arranged in described side preformed hole and described end face preformed hole.
Preferably, in the automatic spray curing system of above-mentioned prefabricated T-shaped beam, described rotary extension shower nozzle comprises the telescopic section and swivel nozzle that are connected, and described telescopic section is connected with described maintenance bye-pass.
Preferably, in the automatic spray curing system of above-mentioned prefabricated T-shaped beam, described water management system comprises circulation time switch and magnetic valve; Described magnetic valve is arranged between described vibration means for main pipe for supplying water road and described bye-pass, and described circulation time switch and described magnetic valve are electrically connected and are electrically connected with the motor of described frequency-conversionbooster booster water pump.
Preferably, in the automatic spray curing system of above-mentioned prefabricated T-shaped beam, described maintenance bye-pass comprises the horizontal maintenance bye-pass and vertical maintenance bye-pass and direction adjustment pipeline that are connected, and described vertical maintenance bye-pass is communicated with described horizontal maintenance bye-pass respectively and described direction regulates pipeline;
Described direction regulates the length of pipeline to be less than the width of described pedestal, and described direction regulates the delivery port of pipeline to point to described side preformed hole, and described direction regulates rotary extension shower nozzle described in pipeline connection.
Preferably, in the automatic spray curing system of above-mentioned prefabricated T-shaped beam, the two ends of described horizontal maintenance bye-pass are communicated with end and reserve water receiving pipe, and described end is reserved water receiving pipe and is communicated with described rotary extension shower nozzle, and the delivery port that water receiving pipe is reserved in described end points to described end face preformed hole.
Preferably, in the automatic spray curing system of above-mentioned prefabricated T-shaped beam, few one of the quantity of diaphragm plate described in the number ratio of described side preformed hole.
Preferably, in the automatic spray curing system of above-mentioned prefabricated T-shaped beam, it is 45 ° that the direction of water receiving pipe and the bottom surface of described pedestal are with it reserved in described end, and to upper water-out.
Preferably, in the automatic spray curing system of above-mentioned prefabricated T-shaped beam, the delivery port that water receiving pipe is reserved in described end is quick connector.
Preferably, in the automatic spray curing system of above-mentioned prefabricated T-shaped beam, comprise many water supply bye-passes, the bye-pass that supplies water described in every bar is all connected with described vibration means for main pipe for supplying water road by three-way connection.
Preferably, at the automatic spray curing system of above-mentioned prefabricated T-shaped beam, the hydraulic pressure of described frequency-conversionbooster booster water pump is 0.4MPa.
In the curing system of said structure, described shower nozzle is rotary extension shower nozzle.When maintenance, when hydraulic pressure reaches setting hydraulic pressure, rotary extension shower nozzle stretches out water spray under hydraulic pressure from the side preformed hole of pedestal and end face preformed hole, and be rotary water jet, spray scope be T-shaped beam on precast pedestal side and, the surface of beam wing plate surface and the diaphragm plate adjacent with this shower nozzle.Because maintenance bye-pass is arranged on the center line of pedestal, so the spray of T-shaped beam both sides is more even.From above technical scheme, the automatic spray curing system of prefabricated T-shaped beam provided by the invention, compared with artificial spray, spray evenly, maintenance is consuming time short, and belongs to concealed installation.Supply channel, all in ground or in pedestal, can not have influence on the operation of other instrument and equipment, simplify Ground arrangement in beam prefabricated process.Can't see in place when not having maintenance and maintenance relevant devices, only when maintenance, nozzle is stretched work and is carried out maintenance to beam, can not because of other implement impact effect.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required for embodiment is briefly described, apparently, for those of ordinary skills, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the automatic spray curing system of prefabricated T-shaped beam provided by the invention;
Fig. 2 is the working state schematic representation of the automatic spray curing system of prefabricated T-shaped beam provided by the invention;
Fig. 3 is the pedestal structure schematic diagram of the automatic spray curing system of prefabricated T-shaped beam provided by the invention;
Fig. 4 is the working state schematic representation of the automatic spray curing system of the prefabricated T-shaped beam in the I-I direction of Fig. 3.
Wherein:
1-precast pedestal; 101-side preformed hole, 102-end face preformed hole, 2-diaphragm plate, 3-reserves water receiving pipe in end, the quick connector of 301-, 4-rotary extension shower nozzle, 401-swivel nozzle, 402-telescopic section, 5 pendent sprinkler, 6-external pipeline, the vertical maintenance bye-pass of 7-, the horizontal maintenance bye-pass of 8-, 9-direction regulates pipeline, 10 prefabricated T-shaped beams, 11-water supply bye-pass, 12-magnetic valve, 13-circulation time switch, 14-frequency-conversionbooster booster water pump, 15-water source, 16-vibration means for main pipe for supplying water road.
Detailed description of the invention
The invention provides a kind of automatic spray curing system of prefabricated T-shaped beam, to solve the problem of non-uniform spraying, maintenance length consuming time and maintenance effect instability in prior art existing for artificial spray maintenance method.
Technical scheme in this explanation is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in this explanation embodiment, technical scheme in this explanation embodiment is clearly and completely described, obviously, described embodiment is only that this illustrates a part of embodiment, instead of whole embodiments.Based on the embodiment in this explanation, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of this explanation protection.
The automatic spray curing system of prefabricated T-shaped beam provided by the invention, prefabricated T-shaped beam 10 is arranged on precast pedestal 1, carries out prefabricated and process that is maintenance.This system comprises the water source 15, frequency-conversionbooster booster water pump 14, water management system, supply channel and the rotary extension shower nozzle 4 that connect successively.Please refer to Fig. 1, the figure shows the structural representation of the automatic spray curing system of prefabricated T-shaped beam provided by the invention.As shown in Figure 1, described supply channel comprise be communicated with successively vibration means for main pipe for supplying water road 16, water supply bye-pass 11 and maintenance bye-pass.Described rotary extension shower nozzle 4 is connected with described maintenance bye-pass.
Please refer to Fig. 2, the figure shows the working state schematic representation of the automatic spray curing system of prefabricated T-shaped beam provided by the invention.Composition graphs 1 and Fig. 2, described maintenance bye-pass is arranged in described precast pedestal 1, and the center line along described precast pedestal 1 is arranged, and described center line is parallel with the length direction of described prefabricated T-shaped beam 10.
As shown in Figure 2, two sides of the described precast pedestal 1 parallel with described prefabricated T-shaped beam 10 length direction are provided with side preformed hole 101, are provided with end face preformed hole 102 with on two end faces of the described precast pedestal 1 of described lateral vertical; Described rotary extension shower nozzle 4 is arranged in described side preformed hole 101.When maintenance, when hydraulic pressure reaches setting hydraulic pressure, rotary extension sprays, 4 stretch out water spray under hydraulic pressure from the side preformed hole 101 of pedestal and end face preformed hole 102, and be rotary water jet, spray scope is the surface of the side of prefabricated T-shaped beam 10 on precast pedestal 1, beam wing plate surface and the diaphragm plate 2 adjacent with this shower nozzle.Because maintenance bye-pass is arranged on the center line of precast pedestal 1, so the spray of prefabricated T-shaped beam 10 both sides is more even.Therefore, the automatic spray curing system of prefabricated T-shaped beam provided by the invention, compared with artificial spray, spray evenly, maintenance is consuming time short, and belongs to concealed installation.Supply channel, all in ground or in pedestal, can not have influence on the operation of other instrument and equipment, simplify Ground arrangement in beam prefabricated process.Can't see in place when not having maintenance and maintenance relevant devices, only when maintenance, nozzle is stretched work and is carried out maintenance to beam, can not because of other implement impact effect.
Please refer to Fig. 1, in above-mentioned technical scheme, described water management system comprises circulation time switch 13 and magnetic valve 12, because the existence of electric power supply control system, the overall process of spray maintenance can realize automatically.In conjunction with above-mentioned technical scheme, the automatic maintenance spray system of prefabricated T-shaped beam provided by the invention can reach " three is complete " maintenance criteria, namely entirely moistening, round-the-clock, full-automatic.Described magnetic valve 12 is arranged between described vibration means for main pipe for supplying water road 16 and described water supply bye-pass 11, and described circulation time switch 13 and described magnetic valve 12 are electrically connected and are electrically connected with the motor of described frequency-conversionbooster booster water pump 14.In the spray maintenance processes of reality, maintenance spray time and maintenance interval time can be set according to the size of prefabricated T-shaped beam and temperature at that time.Utilize circulation time switch to carry out Controlling solenoid valve and whether frequency-conversionbooster booster water pump draws water from water source, thus indirectly control the maintenance bye-pass whether maintenance water entered in pedestal by water supply bye-pass, whether final control opens maintenance.We know in precasting yard, there is a lot of precast pedestals 1, the making of many prefabricated T-shaped beams 10 need be carried out simultaneously, therefore 10 pages, the prefabricated T-shaped beam of maintenance is simultaneously needed may to have a lot of root, therefore curing system provided by the invention comprises many water supply bye-passes 11, the bye-pass 11 that supplies water described in every bar is all connected with described vibration means for main pipe for supplying water road 16 by three-way connection, every bar water supply bye-pass is all provided with magnetic valve, controls the maintenance water of this water supply bye-pass.
In order to ensure that rotary extension shower nozzle 4 successfully can pass side preformed hole 101 on precast pedestal 1 and end face preformed hole 102, maintenance is carried out to prefabricated T-shaped beam in the position reaching setting.The hydraulic pressure of described frequency-conversionbooster booster water pump 14 is 0.4MPa.According to the experience of reality, rotary extension shower nozzle can adopt U.S.'s bird rain series shower nozzle.What this shower nozzle sprayed is fan-shaped vaporific.The process passed is: described rotary extension shower nozzle 4 comprises the telescopic section 402 and swivel nozzle 401 that are connected, described telescopic section 402 is connected with described maintenance bye-pass, telescopic section 402 is extended under the impact of hydraulic pressure, driven rotary nozzle 401 passes above-mentioned preformed hole and sprays, after spray terminates, this telescopic section 402 is shunk, driven rotary nozzle 401 is got back in precast pedestal 1 through above-mentioned spray apertures, make during non-maintenance spray, maintenance of equipment does not produce interference to other operations of precasting yard.Swivel nozzle constantly rotates, spray fan-shaped vaporific, spray to diaphragm plate 2, the side of prefabricated T-shaped beam and the surface of beam wing plate from left to right, even in order to ensure fan-shaped water mist sprinkling, when prefabricated T-shaped beam makes, preferably ensure that side preformed hole can between adjacent diaphragm plate 2, few one of the quantity of the number ratio diaphragm plate 2 of side preformed hole 101.
Incorporated by reference to reference to figure 1, Fig. 3 and Fig. 4, which respectively illustrate the working state schematic representation that Fig. 3 is the automatic spray curing system of the prefabricated T-shaped beam in the pedestal structure schematic diagram of the automatic spray curing system of prefabricated T-shaped beam provided by the invention and the I-I direction of Fig. 3.As shown in Figure 4, described maintenance bye-pass comprises the horizontal maintenance bye-pass 8, vertically maintenance bye-pass 7 and the direction that are connected and regulates pipeline 9, and vertical maintenance bye-pass 7 is communicated with horizontal maintenance bye-pass 8 respectively and direction regulates pipeline 9.Direction regulates the length of pipeline 9 to be less than the width of precast pedestal 1, and direction regulates the delivery port of pipeline 9 to point to described side preformed hole 101, and direction regulates pipeline 9 to be communicated with described rotary extension shower nozzle 4.If, after upper maintenance spray once terminates, impact due to hydraulic pressure causes the direction of swivel nozzle 401 not to be face above-mentioned preformed hole, its flexible and withdrawal may be had influence on, or when may affect its spray coverage, regulate pipeline 9 again to proofread the spray direction of swivel nozzle 401 by regulating above-mentioned direction up and down.
About the maintenance of prefabricated T-shaped beam two end faces, detailed process is as follows: as shown in Figure 2, and the two ends of described horizontal maintenance bye-pass 8 are communicated with end and reserve water receiving pipe 3, and the delivery port that water receiving pipe 3 is reserved in described end points to described end face preformed hole 102.It is 45 ° that the direction of water receiving pipe 3 and the bottom surface of described pedestal are with it reserved in described end, and to upper water-out.The delivery port that water receiving pipe 3 is reserved in described end is quick connector 301.After maintenance starts, can connect external pipeline 6 at quick connector 301 place, external pipeline 6 is communicated with pendent sprinkler 5, and maintenance current pass to pendent sprinkler 5 place, spray two end faces of prefabricated T-shaped beam 10 and Liang Yi end face.
The above is only the specific embodiment of the present invention, those skilled in the art is understood or realizes the present invention.To be apparent to one skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
The above is only the specific embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. the automatic spray curing system of prefabricated T-shaped beam, prefabricated T-shaped beam (10) is arranged on precast pedestal (1), it is characterized in that, comprise the water source (15), frequency-conversionbooster booster water pump (14), water management system, supply channel and the rotary extension shower nozzle (4) that connect successively; Described supply channel comprise be communicated with successively vibration means for main pipe for supplying water road (16), water supply bye-pass (11) and maintenance bye-pass, described rotary extension shower nozzle (4) is connected with described maintenance bye-pass;
Described maintenance bye-pass is arranged in described precast pedestal (1), and the center line along described precast pedestal (1) is arranged, and described center line is parallel with the length direction of described prefabricated T-shaped beam (10);
Two sides of the described precast pedestal (1) parallel with described prefabricated T-shaped beam (10) length direction are provided with side preformed hole (101), are provided with end face preformed hole (102) with on two end faces of the described precast pedestal (1) of described lateral vertical;
Described rotary extension shower nozzle (4) is arranged in described side preformed hole (101).
2. the automatic spray curing system of prefabricated T-shaped beam according to claim 1, it is characterized in that, described rotary extension shower nozzle (4) comprises the telescopic section (402) and swivel nozzle (401) that are connected, and described telescopic section (402) is connected with described maintenance bye-pass.
3. the automatic spray curing system of prefabricated T-shaped beam according to claim 1, is characterized in that, described water management system comprises circulation time switch (13) and magnetic valve (12); Described magnetic valve (12) is arranged between described vibration means for main pipe for supplying water road (16) and described water supply bye-pass (11), and described circulation time switch (13) and described magnetic valve (12) are electrically connected and are electrically connected with the motor of described frequency-conversionbooster booster water pump (14).
4. the automatic spray curing system of prefabricated T-shaped beam according to claim 1, it is characterized in that, described maintenance bye-pass comprises the horizontal maintenance bye-pass (8), vertically maintenance bye-pass (7) and the direction that are connected and regulates pipeline (9), and described vertical maintenance bye-pass (7) is communicated with described horizontal maintenance bye-pass (8) respectively and described direction regulates pipeline (9);
Described direction regulates the length of pipeline (9) to be less than the width of described pedestal, described direction regulates the delivery port of pipeline (9) to point to described side preformed hole (101), and described direction regulates pipeline (9) to be communicated with described rotary extension shower nozzle (4).
5. the automatic spray curing system of prefabricated T-shaped beam according to claim 4, it is characterized in that, the two ends of described horizontal maintenance bye-pass (8) are communicated with end and reserve water receiving pipe (3), and the delivery port that water receiving pipe (3) is reserved in described end points to described end face preformed hole (102).
6. the automatic spray curing system of prefabricated T-shaped beam according to claim 1, is characterized in that, few one of the quantity of the number ratio diaphragm plate (2) of described side preformed hole (101).
7. the automatic spray curing system of prefabricated T-shaped beam according to claim 5, is characterized in that, it is 45 ° that the direction of water receiving pipe (3) and the bottom surface of described precast pedestal (1) are reserved in described end, and to upper water-out.
8. the automatic spray curing system of prefabricated T-shaped beam according to claim 5, is characterized in that, the delivery port that water receiving pipe (3) is reserved in described end is quick connector (301).
9. the automatic spray curing system of prefabricated T-shaped beam according to claim 1, it is characterized in that, comprise many described water supply bye-passes (11), the bye-pass (11) that supplies water described in every bar is all connected with described vibration means for main pipe for supplying water road (16) by three-way connection.
10. the automatic spray curing system of prefabricated T-shaped beam according to claim 1, is characterized in that, the hydraulic pressure of described frequency-conversionbooster booster water pump (14) is 0.4MPa.
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Cited By (13)
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| CN105583946A (en) * | 2016-02-19 | 2016-05-18 | 中国水利水电第十四工程局有限公司 | Prefabricated T-beam spraying water curing system |
| CN105965678A (en) * | 2016-06-24 | 2016-09-28 | 中铁十四局集团第五工程有限公司 | Integrated spraying maintenance system and method for U-beam body |
| CN106042161A (en) * | 2016-06-30 | 2016-10-26 | 中交航局第四工程有限公司 | Movable automatic spray maintaining device for prefabricated T-shaped beams |
| CN106903785A (en) * | 2017-03-15 | 2017-06-30 | 中交第三公路工程局有限公司 | Automatic spray control system |
| CN107471417A (en) * | 2017-08-21 | 2017-12-15 | 利越集团有限公司 | Fixed hidden precast beam fully-automatic sprinkling maintenance construction engineering method |
| CN108058267A (en) * | 2017-12-14 | 2018-05-22 | 山西路桥第二工程有限公司 | Precast T-Beam channel steel base construction method |
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| CN105965678B (en) * | 2016-06-24 | 2019-05-17 | 中铁十四局集团第五工程有限公司 | U-shaped beam body integral type sprinkling curing system and method |
| CN105965678A (en) * | 2016-06-24 | 2016-09-28 | 中铁十四局集团第五工程有限公司 | Integrated spraying maintenance system and method for U-beam body |
| CN106042161A (en) * | 2016-06-30 | 2016-10-26 | 中交航局第四工程有限公司 | Movable automatic spray maintaining device for prefabricated T-shaped beams |
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| CN107471417A (en) * | 2017-08-21 | 2017-12-15 | 利越集团有限公司 | Fixed hidden precast beam fully-automatic sprinkling maintenance construction engineering method |
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| CN108312318A (en) * | 2018-02-28 | 2018-07-24 | 贵州工程应用技术学院 | A kind of high ferro precast bridge multi-angle spraying method |
| CN108481536A (en) * | 2018-05-03 | 2018-09-04 | 湖南聚创建筑科技有限公司 | A kind of intelligent control storage concrete curing system |
| CN110666945A (en) * | 2019-08-30 | 2020-01-10 | 中国十七冶集团有限公司 | Automatic curing means of retractable precast beam board |
| CN110653918A (en) * | 2019-09-26 | 2020-01-07 | 中交一公局第六工程有限公司 | Construction method for synchronously pouring large-span corrugated steel inclined web precast beam with toothed block on top and bottom plates by post-tensioning method |
| CN110712279A (en) * | 2019-10-23 | 2020-01-21 | 北京力拓铭达机电安装工程有限公司 | Maintenance processing technology of reinforced concrete airtight door leaf and maintenance frame thereof |
| CN110712279B (en) * | 2019-10-23 | 2021-07-27 | 北京力拓铭达机电安装工程有限公司 | Maintenance processing technology of reinforced concrete airtight door leaf and maintenance frame thereof |
| CN111203965A (en) * | 2020-01-13 | 2020-05-29 | 中铁八局集团桥梁工程有限责任公司 | Automatic spraying control system |
| CN111805718A (en) * | 2020-07-31 | 2020-10-23 | 湖北省清江路桥建筑有限公司 | Spraying maintenance system and maintenance method |
| CN111805718B (en) * | 2020-07-31 | 2021-09-24 | 湖北省清江路桥建筑有限公司 | Spraying maintenance system and maintenance method |
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