CN111576347A - Cast-in-situ aqueduct maintenance device and construction method - Google Patents
Cast-in-situ aqueduct maintenance device and construction method Download PDFInfo
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- CN111576347A CN111576347A CN202010529713.2A CN202010529713A CN111576347A CN 111576347 A CN111576347 A CN 111576347A CN 202010529713 A CN202010529713 A CN 202010529713A CN 111576347 A CN111576347 A CN 111576347A
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- aqueduct
- water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/02—Making or lining canals
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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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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a cast-in-place aqueduct maintenance construction method, which mainly comprises the following construction steps: (1) construction preparation; (2) installing a slide rail; (3) hoisting the spraying maintenance device; (4) spraying and maintaining the inner wall of the tank; (5) covering a maintenance film; (6) partitioning and blocking water; (7) and welding a steel wire mesh. The spraying maintenance device is arranged to spray water on the inner wall of the aqueduct in a sliding and uniform mode, so that the water spraying maintenance on the inner wall of the aqueduct is uniform, the maintenance film is covered by the forming pressing frame, the influence of wind blowing on the aqueduct covering film is reduced, and the water blocking end plate is arranged to divide the aqueduct to facilitate the maintenance of later-stage aqueduct water leakage.
Description
Technical Field
The invention relates to the field of aqueduct maintenance, in particular to a cast-in-place aqueduct maintenance device and a construction method.
Background
The aqueduct is a common building for water delivery engineering to span valleys, depressions and ditches, the height of a general pier body is 20-33 m, the single span length of the aqueduct body is 20-30 m, the height of the top of the aqueduct body from the ground is large, and the construction difficulty is large. When the size of the aqueduct is larger, the following problems often exist in the maintenance process of the aqueduct wall: (1) the size of the inner wall of the tank is large, and manual water spraying maintenance is not uniform; (2) the whole trough is long, and when quality problems such as water leakage exist in a certain part, the water leakage position is difficult to check and repair; (3) when the maintenance film covers, the maintenance film is often greatly influenced by wind force, scattered bricks, steel pipes and other film pressing are manually adopted, and the construction efficiency is low.
In summary, no effective solution is provided at present for the problems of aqueduct maintenance in the related art.
Disclosure of Invention
Based on this, the application provides a cast-in-place aqueduct curing means and construction method for improve inslot wall water spray maintenance quality and maintenance membrane and cover compaction efficiency, make things convenient for later stage inspection to repair the position that leaks, have better technological economic benefits.
In a first aspect, the application provides a cast-in-place aqueduct maintenance construction method, which comprises the following construction steps:
1) construction preparation: embedding cast iron with holes in advance in the groove cap pouring process;
2) mounting a slide rail: placing the sliding rail on the top of the groove cap, arranging sliding rail fixing ends on two sides of the sliding rail, and fixing the sliding rail fixing ends on the pre-buried cast iron with the holes to connect and fix the sliding rail and the groove cap;
3) the installation of the spray maintenance device: placing a spraying maintenance device on the sliding rail, wherein the spraying maintenance device comprises a bottom plate, the bottom plate is supported on a supporting end, a pulley is installed at the bottom of the supporting end, the outer peripheral surface of the pulley is matched with the sliding rail and can be guided by the sliding rail and slide along the sliding rail, a driving motor is arranged on the upper side of the bottom plate, the pulley is communicatively connected with the driving motor to be controlled, a water storage tank is arranged on one side of the driving motor, and a U-shaped water pipe is installed at the bottom of the;
4) spraying and maintaining the inner wall of the tank: the driving motor drives the spraying maintenance device to run on the sliding rail in a test mode, water is injected into the water storage tank, and sliding water spraying maintenance is carried out on the inner wall of the groove through the U-shaped water pipe;
5) covering a maintenance film: after the water spraying maintenance is finished, the maintenance film is covered on the inner wall of the groove.
In one possible implementation, the method further comprises the following steps: and 5) arranging a shaping pressing frame on the upper surface of the maintenance film along the length direction of the aqueduct, and hoisting the shaping pressing frame and pressing the shaping pressing frame on the maintenance film.
In one possible implementation, the method further comprises partitioning water: after the step 5), inserting at least one water-retaining end plate on the inner wall of the tank, dividing the aqueduct into at least two areas by the water-retaining end plate, injecting water into each area by the spraying maintenance device in sequence, and checking whether the water leaks from the inner wall of the tank in each area.
In a possible implementation manner, in the step 1), a U-shaped slot is dug in the inner wall of the slot when the aqueduct in the previous sequence is poured, the water-retaining end plate is inserted into the U-shaped slot in a matched manner, and a rubber ring is arranged on the annular edge of the water-retaining end plate, which is in contact with the U-shaped slot.
In a possible implementation mode, the stereotyped pressing frame comprises at least two mutually parallel pressing frame vertical rods, a pressing frame horizontal rod is fixed between every two adjacent pressing frame vertical rods, and a pressing frame support rod is fixed on each pressing frame horizontal rod.
In a possible implementation manner, the U-shaped water pipe is provided with at least two water holes along the radial direction, and the water spraying direction of the water holes is arranged towards the inner wall of the groove.
In a possible realization mode, a water regulating valve used for controlling the water yield is arranged between the water storage tank and the U-shaped water pipe.
In a possible implementation manner, in step 3), a control device is arranged on the bottom plate, the control device is arranged on the side of the water storage tank far away from the driving motor, and the pulley-wheel communication connection is controlled by the control device.
In a possible implementation mode, a steel wire mesh is arranged at the water inlet end of the aqueduct and welded on the inner wall of the aqueduct.
In a second aspect, the application provides a cast-in-place aqueduct maintenance device, which is obtained by the cast-in-place aqueduct maintenance construction method.
Compared with the prior art, the invention has the following characteristics and beneficial effects:
(1) this application sets up and sprays curing means and slide even water spray to the aqueduct inner wall for aqueduct inner wall water spray maintenance is even.
(2) This application sets up slot-in type manger plate end plate and carries out the subregion to the aqueduct, annotates hydroenergy through the subregion and whether leak aqueduct inner wall is checked high-efficiently to repair the position of leaking.
(3) This application covers the time at the maintenance membrane, adopts the design to press the frame to carry out the press mold, and the press mold is efficient, makes the influence of the wind that receives of maintenance membrane reduce.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in related arts, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a fixed structure view of the top slide rail of the aqueduct of the invention;
FIG. 2 is a structural view of the spray maintenance device of the present invention;
FIG. 3 is a view of a film pressing structure of a aqueduct sizing press frame;
FIG. 4 is a schematic view of the interior wall of the aqueduct;
fig. 5 is a structural view of the water guard end plate.
Wherein: 1-inner wall of the tank; 2-groove cap; 3-a slide rail; 4-slide rail fixing end; 5-bolt; 6-pre-burying cast iron with holes; 7-a water storage tank; 8-driving a motor; 9-a control device; 10-a base plate; 11-an electrical wire; 12-a support end; 13-a pulley; 14-U-shaped water pipes; 15-water hole; 16-a water regulating valve; 17-curing the membrane; 18-pressing frame vertical rods; 19-pressing a horizontal rod of the rack; 20-pressing frame support rods; 21-steel wire mesh; 22-rubber ring; 23-water retaining end plate; 24-U-shaped slot.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. All other examples, which can be obtained by a person skilled in the art without making any inventive step based on the examples in this application, are within the scope of protection of this application.
It is obvious that the drawings in the following description are only examples or embodiments of the application, from which the application can also be applied to other similar scenarios without inventive effort for a person skilled in the art. Moreover, it should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Unless otherwise defined, technical or scientific terms used in the claims and the specification should have the ordinary meaning as understood by those of ordinary skill in the art to which this application belongs. The use of the terms "a" and "an" and "the" and similar referents in the context of describing and claiming the application are not to be construed as limiting in any way, but rather as indicating the singular or plural. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalent, and does not exclude other elements or items. "connected" or "coupled" and similar terms are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in the specification and claims of this application, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
The embedded technical requirements of the embedded part, the preset technical requirements of the U-shaped slot, the technical requirements of bolt installation, the technical requirements of welding steel plates and steel pipes, the technical requirements of assembly of a spraying maintenance device, the working principle of a driving device and a control device, the concrete mixing construction quality standard and the like are not repeated in the application, and the application is mainly explained to the implementation mode of the structure.
Example 1: as shown in fig. 1 to 5, to solve the above problems, an embodiment of the present invention provides a cast-in-place aqueduct maintenance device and a construction method thereof, the device is disposed on a trough cap 2 of an aqueduct and is used for performing water spraying maintenance on a trough inner wall 1 of the aqueduct, the trough cap 2 is provided with a slide rail 3, the slide rail 3 is made of a steel plate, the slide rail 3 is slidably provided with a spraying maintenance device, wherein the spraying maintenance device comprises a bottom plate 10, the bottom plate 10 is supported on a supporting end 12, the bottom of the supporting end 12 is provided with a pulley 13, the outer circumferential surface of the pulley 13 is adapted to the slide rail 3 and can be guided by the slide rail 3 and slide along the slide rail 3, the upper side of the bottom plate 10 is provided with a driving motor 8, the pulley 13 is communicatively connected to the driving motor 8 for control, one side of the driving motor 8 is provided with a water storage tank 7, the bottom of the water storage tank 7, in the sliding process, the U-shaped water pipe 14 uniformly sprays water to the inner wall 1 of the groove for maintenance.
Specifically, the U-shaped water pipe 14 is provided with at least two water holes 15 along the radial direction, the water spraying direction of the water holes 15 is arranged towards the groove inner wall 1, a water regulating valve 16 is arranged between the water storage tank 7 and the U-shaped water pipe 14, and the water quantity during water spraying maintenance is regulated through the water regulating valve 16.
In addition, a control device 9 is further arranged on the bottom plate 10, the control device 9 is arranged on one side, away from the driving motor 8, of the water storage tank 7, the pulley 13 is in communication connection with the control device 9 to be controlled, the control device 9 is connected with the driving motor 8 through an electric wire 11, and the control device 9 controls the rotating speed of the driving motor 8 to adjust the sliding speed of the spraying maintenance device on the sliding rail 3.
Further, before the installation of the spraying maintenance device, the groove cap 2 is provided with the pre-buried cast iron with holes 6, in the embodiment, the slide rail 3 is provided with two, the slide rail 3 is respectively arranged on the groove caps 2 at two sides of the aqueduct, the two ends of the slide rail 3 are respectively provided with the slide rail fixed end 4, the slide rail fixed end 4 is arranged at two sides of the slide rail 3 and tightly propped against the slide rail 3, and the slide rail fixed end 4 and the pre-buried cast iron with holes 6 are connected through the bolt 5 to fix the slide.
The groove inner wall 1 is provided with a maintenance film 17, the maintenance film 17 is collected and placed through a movable rolling shaft and covers the groove inner wall 1, the upper surface of the maintenance film 17 is provided with a sizing pressing frame along the length direction of the aqueduct, the sizing pressing frame is welded in advance by adopting square and round steel pipes to match the size of the aqueduct, the cross section of the sizing pressing frame is U-shaped, and the sizing pressing frame obtained by prefabrication is lifted through a crane and pressed on the maintenance film 17 to prevent the maintenance film from being blown by wind.
In order to further improve the stability of the shaped pressing frame and reduce the influence of wind on the curing film 17, the shaped pressing frame comprises at least two mutually parallel pressing frame vertical rods 18, a pressing frame horizontal rod 19 is fixed between every two adjacent pressing frame vertical rods 18, and a pressing frame support rod 20 is fixed on the pressing frame horizontal rod 19.
In one possible implementation, the aqueduct inner wall 1 is checked more efficiently by partitioning the aqueduct for water leakage: in the process of casting the aqueduct, a mold is adopted to open at least one U-shaped slot 24 on the inner wall 1 of the aqueduct, the water-retaining end plate 23 is inserted into the U-shaped slot 24 in a matching way, the aqueduct is divided into at least two areas by the water-retaining end plate 23, and in the embodiment, the number of the water-retaining end plate 23 can be 3, 4, 5 and the like. Spraying and maintaining device injects water into each region in turn, checks whether the inner wall 1 of the groove of each region leaks water, and adopts mortar to paint and mend leakage in time after the water leakage condition occurs. Furthermore, the rubber ring 22 is arranged on the annular edge of the water-retaining end plate 23, which is in contact with the U-shaped slot 24, and the rubber ring 22 is fully embedded into the U-shaped slot 24, so that the water-retaining sealing effect of each area is improved.
In addition, the aqueduct water inlet end is provided with a steel wire mesh 21, and the steel wire mesh 21 is welded on a steel bar head reserved on the inner wall 1 of the aqueduct to prevent garbage from entering the aqueduct.
The aqueduct maintenance construction process of the invention is as follows:
(1) construction preparation: in the process of casting the preorder aqueduct, a mold is adopted to arrange a U-shaped slot 24 on the inner wall 1 of the tank, embedded cast iron with holes 6 is implanted in the process of casting concrete on the tank cap 2, and bolt holes of the embedded cast iron with holes 6 are protected from being blocked. Presetting a slide rail 3 and a stereotyped pressing frame, wherein the slide rail 3 is made of steel plates, and the stereotyped pressing frame is welded in advance according to the size of an aqueduct by square and round steel pipes.
(2) Installing a slide rail: after the strength of the groove cap 2 reaches the standard, the sliding rail 3 is horizontally placed at the top of the groove cap 2, the sliding rail fixed ends 4 are placed on two sides of the sliding rail 3 and tightly propped against the sliding rail 3, and the sliding rail fixed ends 4 are fixed on the embedded cast iron with holes 6 through bolts 5, so that the sliding rail 3 is tightly clamped by the sliding rail fixed ends 4.
(3) Hoisting and spraying the maintenance device: the spraying maintenance device is assembled on the ground, the spraying maintenance device is lifted by a crane and placed at the top of the tank cap 2, the pulley 13 is placed in the slide rail 3, after the spraying maintenance device is lifted, the driving motor 8 is started to drive the spraying maintenance device to test on the slide rail 3, and when the test is good, water is injected into the water storage tank 7 through the water injection pipe.
(4) Spraying and maintaining the inner wall of the tank: when the water quantity in the water storage tank 7 meets the spraying requirement, the driving motor 8 is started, the sliding speed of the spraying maintenance device on the sliding rail 3 is controlled through the control device 9, the water regulating valve 16 is opened, and the sliding water spraying maintenance is carried out on the inner wall 1 of the groove through the U-shaped water pipe 14.
(5) Covering a maintenance film: after the water spraying maintenance is finished, the maintenance film 17 covers the inner wall 1 of the groove, the maintenance film 17 is covered by a movable roller, and the formed pressing frame welded in advance is lifted and pressed on the maintenance film 17 by a crane while covering the maintenance film 17, so that the maintenance film is prevented from being blown by wind.
(6) Partitioning and water blocking: after aqueduct concrete maintenance is finished, residues in the U-shaped slots 24 are cleaned, the water-retaining end plates 23 are inserted into the U-shaped slots 24, the rubber rings 22 are fully embedded into the U-shaped slots 24, a region is arranged between every two adjacent water-retaining end plates 23, water is injected into each region in sequence, whether water leaks from the inner wall 1 of each region is checked, and if water leaks, mortar is timely adopted to paint and repair the water leakage.
(7) Welding a steel wire mesh: after the quality problems such as water leakage and the like do not exist at each position of the aqueduct, a steel wire mesh 21 is arranged at the water inlet end of the aqueduct, and the steel wire mesh 21 is welded with a steel bar head reserved on the inner wall 1 of the aqueduct, so that garbage is prevented from entering the aqueduct to be blocked.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A cast-in-place aqueduct maintenance construction method is characterized in that the method is applied to water spraying maintenance of an inner wall (1) of an aqueduct and construction on a trough cap (2) of the aqueduct, and comprises the following construction steps:
1) construction preparation: embedding a pre-buried cast iron (6) with holes in the pouring process of the groove cap (2);
2) mounting a slide rail: the sliding rail (3) is horizontally placed at the top of the groove cap (2), sliding rail fixing ends (4) are arranged on two sides of the sliding rail (3), and the sliding rail fixing ends (4) are fixed on the pre-buried cast iron (6) with the holes, so that the sliding rail (3) is fixedly connected with the groove cap (2);
3) the installation of the spray maintenance device: placing a spraying maintenance device on a sliding rail (3), wherein the spraying maintenance device comprises a bottom plate (10), the bottom plate (10) is supported on a supporting end (12), a pulley (13) is installed at the bottom of the supporting end (12), the outer peripheral surface of the pulley (13) is matched with the sliding rail (3) and can be guided by the sliding rail (3) and slide along the sliding rail (3), a driving motor (8) is arranged on the upper side of the bottom plate (10), the pulley (13) is controlled to slide by the driving motor (8), a water storage tank (7) is arranged on one side of the driving motor (8), and the bottom of the water storage tank (7) is connected with a U-shaped water pipe (14);
4) spraying and maintaining the inner wall of the tank: the driving motor (8) drives the spraying maintenance device to run on the sliding rail (3) in a trial mode, water is injected into the water storage tank (7), and sliding water spraying maintenance is carried out on the inner wall (1) of the groove through the U-shaped water pipe (14);
5) covering a maintenance film: after the water-spraying curing is completed, the curing film (17) is covered on the inner wall (1) of the tank.
2. The cast-in-place aqueduct maintenance construction method as claimed in claim 1, further comprising the following steps of: and 5), installing a shaping pressing frame on the upper surface of the maintenance film (17) along the length direction of the aqueduct, and hoisting the shaping pressing frame to press and cover the maintenance film (17).
3. The cast-in-place aqueduct maintenance construction method according to claim 1, characterized in that the method further comprises the following steps of partitioning water: and 5) inserting at least one water-retaining end plate on the inner wall of the aqueduct, dividing the aqueduct into at least two areas by the water-retaining end plate, and sequentially injecting water into each area by the spraying maintenance device.
4. The cast-in-place aqueduct maintenance construction method according to claim 3, wherein in the step 1), a U-shaped slot (24) is dug on the inner wall (1) of the aqueduct during the casting of the previous aqueduct, the water-blocking end plate (23) is inserted on the U-shaped slot (24) in a matching way, and a rubber ring (22) is arranged on the annular edge of the water-blocking end plate (23) contacting with the U-shaped slot (24).
5. The cast-in-place aqueduct maintenance construction method as claimed in claim 2, wherein the shaped pressure frame comprises at least two pressure frame vertical rods (18) which are parallel to each other, a pressure frame horizontal rod (19) is fixed between every two adjacent pressure frame vertical rods (18), and a pressure frame support rod (20) is fixed on each pressure frame horizontal rod (19).
6. The cast-in-place aqueduct maintenance construction method as claimed in claim 1, wherein the U-shaped water pipe (14) is provided with at least two water holes (15) along the radial direction, and the water spraying direction of the water holes (15) is arranged towards the inner wall (1) of the aqueduct.
7. The cast-in-place aqueduct maintenance construction method as claimed in claim 1, wherein a water regulating valve (16) for controlling the water yield is arranged between the water storage tank (7) and the U-shaped water pipe (14).
8. The cast-in-place aqueduct maintenance construction method as claimed in claim 1, wherein in the step 3), the control device (9) is arranged on the bottom plate (10), the control device (9) is arranged on one side of the water storage tank (7) far away from the driving motor (8), and the pulley (13) is connected with the control device (9) in a communication way to be controlled.
9. The cast-in-place aqueduct maintenance construction method as claimed in claim 1, wherein a steel wire mesh (21) is arranged at the water inlet end of the aqueduct, and the steel wire mesh (21) is welded on the inner wall (1) of the aqueduct.
10. A cast-in-situ aqueduct maintenance device is characterized by being obtained by the construction of the cast-in-situ aqueduct maintenance construction method.
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| CN202010529713.2A CN111576347B (en) | 2020-06-11 | 2020-06-11 | Cast-in-situ aqueduct maintenance device and construction method |
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| JP5410113B2 (en) * | 2009-02-19 | 2014-02-05 | シーアイ化成株式会社 | Waterway joint construction method and joint structure |
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| CN108252187A (en) * | 2016-12-28 | 2018-07-06 | 中国二十冶集团有限公司 | Concrete curing membrane laying system and laying method |
| CN208039175U (en) * | 2017-11-22 | 2018-11-02 | 吕泽南 | A kind of hydraulic engineering shock resistance chute |
| CN110485377A (en) * | 2019-07-16 | 2019-11-22 | 中电建十一局工程有限公司 | A kind of light section canal lining construction method |
| CN110779661A (en) * | 2019-12-05 | 2020-02-11 | 南华大学 | Drainage pipeline seepage-proofing performance test system |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5410113B2 (en) * | 2009-02-19 | 2014-02-05 | シーアイ化成株式会社 | Waterway joint construction method and joint structure |
| CN203937012U (en) * | 2014-07-21 | 2014-11-12 | 中铁十一局集团有限公司 | A kind of concrete wet curing device |
| CN204920254U (en) * | 2015-08-14 | 2015-12-30 | 浙江新中源建设有限公司 | Maintenance of equipment of large tracts of land concrete regularization automatic spray |
| CN108252187A (en) * | 2016-12-28 | 2018-07-06 | 中国二十冶集团有限公司 | Concrete curing membrane laying system and laying method |
| CN107322775A (en) * | 2017-08-08 | 2017-11-07 | 西安墙体材料研究设计院 | A kind of reciprocating circulating maintenance device and maintaining process |
| CN208039175U (en) * | 2017-11-22 | 2018-11-02 | 吕泽南 | A kind of hydraulic engineering shock resistance chute |
| CN110485377A (en) * | 2019-07-16 | 2019-11-22 | 中电建十一局工程有限公司 | A kind of light section canal lining construction method |
| CN110779661A (en) * | 2019-12-05 | 2020-02-11 | 南华大学 | Drainage pipeline seepage-proofing performance test system |
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| CN111576347B (en) | 2022-02-15 |
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