Air shield dam installation anchoring system and method

The main anchoring system, manufactured using a template system and welding vulcanization process, solved the problems of accuracy of pre-embedded bolts and construction complexity in the installation of air-supported dams, achieving simplified construction and efficient installation, and improving the quality and efficiency of air-supported dams.

CN114045795BActive Publication Date: 2026-01-06LIAONING HEBAN GAS SHIELD DAM EQUIP MFG CO LTD
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Patent Information

Application Number
CN202111352031.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-11-16
Publication Date
2026-01-06
Estimated Expiration
2041-11-16

AI Technical Summary

Technical Problem

In existing air-supported dam installation projects, it is difficult to achieve the precision of the pre-embedded bolts in the main anchoring system. The construction is cumbersome and complex, with high labor intensity. Moreover, the construction of the non-perforated anchoring method for high-head air-supported dams is even more demanding, and human factors have a significant impact.

Method used

The template system, consisting of positioning plates, front baffles, rear baffles, side baffles, and ribs, combined with root and wedge embedded parts, main anchor bolt rows, wedge-shaped pressure plates, and flexible hinge covers, is manufactured through welding and vulcanization processes to achieve precise positioning of the main anchoring system and simplify construction.

Benefits of technology

The system enabled precise installation of the main anchoring system, simplified the construction process, reduced labor intensity, improved construction efficiency and installation quality of the air-supported dam, and saved project costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses an air shield dam installation anchoring system and method, and belongs to the technical field of water retaining water conservancy facilities. The system comprises a main anchoring pouring positioning mold, a root embedded part, a wedge embedded part, a main anchoring bolt row, a wedge-shaped pressing plate and a flexible hinge cover plate. The anchoring system is used for setting the main anchoring positioning mold, the root embedded part, the wedge embedded part and the main anchoring bolt row together with a steel reinforcement cage, and pouring the main anchoring foundation with concrete at one time. After the concrete has strength, the mold is removed, and the air bag (wedge-shaped edge) and the steel shield are installed on the main anchoring screw rod by the wedge-shaped pressing plate, the flexible hinge cover plate, a shield plate shaft and a bolt. The system guarantees the accuracy of the main anchoring system installation, meets the harsh and complex requirements of the main anchoring positioning construction and the air shield dam installation, and solves the human factors and the labor intensity. The application changes the main anchoring system and the construction method, is simple to operate, saves the engineering cost, and has good air shield dam installation quality.
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Description

Technical Field

[0001] This invention relates to an installation and anchoring system and method for air-supported dams, belonging to the field of construction technology for water-retaining and water-conserving facilities. Background Technology

[0002] Dams are crucial modern water conservancy facilities. From earthen dams, concrete dams, steel dams, and sluice gates to rubber dams and today's air-shield dams, air-shield dams have inherited the essence of traditional movable dams while overcoming their bottlenecks. They feature simple structure, easy and quick construction, installation, use, and maintenance; outstanding flood control and flood season management capabilities; safe and reliable operation; continuously controllable water level and operating status; stronger sludge removal and drainage capabilities; higher water blocking and flow capacity; short filling and drainage time; simple operation and management; extremely long service life; high comprehensive benefits; strong earthquake resistance; high adaptability to foundations; good landscape effect; and ecological and environmentally friendly characteristics.

[0003] The main anchor system of the air-supported dam uses main anchor components to fix the rubber airbag and steel shield plate to the riverbed through pressure plates to form a sealed bladder. This is the key factor in whether the air-supported dam can play a stable role in blocking water.

[0004] Generally, the structure of the main anchor system is divided into two types: when the water-blocking height is low, such as below 2.5 meters, the airbag perforated form is used; when the water-blocking height is high, the airbag non-perforated form is used.

[0005] In engineering construction, the pre-embedding and anchoring of main anchor bolts is a very important part of the entire project. The quality of the anchoring system and construction quality control directly affects the success or failure of the air shield dam installation. The selection of the anchoring system and construction method will have a great impact on the project quality and schedule.

[0006] When pre-embedded bolts are used for main anchorage in general engineering projects, bolt clamps are used to fix the position of the anchor bolts. A theodolite is used to observe and ensure that the center lines of the anchor bolts are on a straight line. The elevation of the anchor bolts is measured with a level and compared with the design requirements to confirm that there are no errors. Wooden supports are used to fix the bolt clamps in the anchoring groove. A long steel bar is used to weld the pre-embedded parts together according to the design spacing. After confirming that the anchor bolts should not move under stress, the concrete for the anchoring groove is poured. To ensure the construction quality of the anchor bolts, the concrete pouring is carried out in two stages. When the first stage of concrete is poured to 100mm from the bottom of the anchoring groove, the center position, elevation, absolute position, spacing, and stability of the anchor bolts should be re-observed. If the anchor bolts are found to be off-center, they should be reset in time. During the pouring process, a theodolite is set up at the anchoring line control point for on-site monitoring. If any displacement is found, it should be corrected immediately. Φ18 steel bars are also welded under the clamps to increase the anchoring pressure. After the second stage of concrete is poured, the observation and correction work is carried out again before the concrete initially sets. When the concrete of the dam base slab meets the specifications, the bolted pressure plate anchoring can be installed according to the following steps: the pressure plates should be aligned end to end, and if uneven, they should be leveled with rubber pads; the nuts should be tightened multiple times when tightening, and the nuts should be tightened again after the dam bag is filled with water; a torque wrench should be used when tightening the nuts, and the bolts should be tightened one by one according to the set torque; the butt joints of the rolled-in pressure core or steel pipe should be staggered from the joints of the pressure plates to avoid soft joints that may cause local leakage.

[0007] Existing anchoring systems and methods have various drawbacks:

[0008] 1) During on-site construction, it is difficult to achieve the required precision for the pre-embedded bolts;

[0009] 2) After the air-supported dam is installed, air leakage or slow air release often occurs in the airbags;

[0010] 3) Concrete pouring needs to be done in two phases, making the construction extremely complicated and time-consuming. It requires a high level of skill and experience from the construction workers and involves a lot of labor intensity.

[0011] 4) The upper pressure plate of the non-perforated anchorage type of the air shield dam with a high water head has a complex shape. The construction of the main anchor bolts and the main anchor fixing position, as well as the installation of the air shield dam, are more demanding and complex, with high requirements, great influence from human factors, and high labor intensity. Summary of the Invention

[0012] This addresses the aforementioned problems with existing methods and technologies for main anchoring and positioning in the installation of air-supported dams.

[0013] The purpose of this invention is to provide an installation and anchoring system and method for air-supported dams, ensuring the accuracy of the main anchoring system installation, meeting the stringent and complex requirements of main anchor positioning and air-supported dam installation, and solving the problems of human factors and labor intensity. This invention changes the main anchor positioning and construction method, simplifies operation, saves engineering costs, and results in high-quality air-supported dam installation.

[0014] The objective of this invention is achieved through the following technical solution:

[0015] An installation and anchoring system for a pneumatic shield dam includes a positioning plate with template positioning holes; a front baffle with two rows of parallel, alternately distributed vent holes and root embedded part positioning holes; a rear baffle with a row of alternately distributed vent holes and wedge positioning holes; side baffles with side baffle connection holes; ribs with lifting holes; root embedded parts including a root embedded part main plate, stiffening plates, shear studs, and positioning bolts; and wedge embedded parts including a wedge embedded part main plate, stiffening plates, and shear studs. Forced nails and positioning bolts; main anchor bolt row, including main anchor bolts, anchor row brackets, upper positioning nuts and lower positioning nuts of the bolt row; wedge-shaped pressure plates, including wedge-shaped feet, dumbbell-head-shaped pressure heads at the top of the feet, several stepped anchor bolt holes, including upper stepped holes for fixing anchor bolt nuts and lower stepped holes for passing anchor bolts, dumbbell-head-shaped pressure feet at the root, flat convex-shaped cavities with ribs and lifting holes, flat semi-convex-shaped cavities, and an upper surface plate. The flat semi-convex-shaped cavities are the flat semi-convex-shaped cavities of two adjacent wedge-shaped pressure plates, which together form a complete convex-shaped cavity; flexible hinge cover plate, including a wedge-shaped part, a hinge part, a circular fixing part, main anchor bolt holes, and a shaped anti-detachment round bar.

[0016] The positioning mold described in this invention is made of Q355B carbon steel or 304 stainless steel and is a one-piece positioning mold manufactured through welding. The Q355B carbon steel undergoes anti-corrosion treatment, namely shot blasting, slag removal surface treatment, galvanizing, and coating for corrosion protection. The surface of the metal integral formwork in contact with concrete does not require surface treatment or anti-corrosion measures.

[0017] The root embedded part and wedge embedded part of the present invention are made of 304 stainless steel, and the stiffening plate, shear nail and positioning bolt are made of Q235B carbon steel.

[0018] The main anchor bolt row of the present invention: the main anchor bolt is made of 304 stainless steel, and the main anchor bolt row bracket is made of channel steel.

[0019] The method for manufacturing the main anchor bolt row described in this invention:

[0020] 1) Pass the main anchor bolt through the round holes of the upper beam and bottom beam of the anchoring bracket, and weld the upper beam and bottom beam to the upper and lower contact surfaces of the bolt.

[0021] 2) Then, weld the two vertical ends of the anchor frame to the ends of the upper beam and the bottom beam.

[0022] The wedge-shaped pressure plate of the present invention is made of cast steel or cast iron and undergoes simple machining and zinc spraying.

[0023] The flexible hinged cover plate of this invention is made of fiber-reinforced EPDM rubber sheet, and the shaped anti-detachment round bar is steel wire rope.

[0024] The manufacturing method of the flexible hinge cover plate of the present invention:

[0025] 1) A layer of rubber sheet and a layer of adhesive-coated cord fabric are alternately laid in the mold, with N+1 layers of rubber sheet and N layers of cord fabric. During laying, the fabric is routed around the cylinder inside the mold to form the main anchor bolt holes; at the same time, a shaping and anti-detachment round rod is wrapped around it to prepare the preform of the flexible hinge cover plate. That is, the main anchor bolt holes of the flexible hinge cover plate product are not drilled later, which effectively prevents the drilled holes from being torn open during application and effectively prevents air leakage or slow air release from the air shield dam.

[0026] 2) Place the mold of the preform with the flexible hinge cover into an autoclave for vulcanization.

[0027] 3) After the vulcanization process is completed, the product is cooled, removed from the can, and taken off the mold, thus producing the flexible hinged cover plate.

[0028] Construction method of the air shield dam installation and anchoring system described in this invention:

[0029] 1) Install the wedge-shaped embedded part on the rear baffle of the positioning template through the wedge-shaped embedded part positioning hole using positioning bolts, and install the root embedded part on the front baffle of the positioning template through the root embedded part positioning hole using positioning bolts.

[0030] 2) After the main anchor casting positioning mold is assembled with the wedge embedded part and the root embedded part, the component is installed on the main anchor bolt row through the template positioning hole and fixed with the main anchor positioning nut.

[0031] 3) The positioning mold is fixed to the root embedded part and the wedge embedded part by welding with channel steel through the fixed bracket of the main anchor bolt row.

[0032] 4) Inspect and verify the elevation, levelness, verticality, spacing, and reference point dimensions of the main anchor casting positioning template; after verification, further weld it firmly.

[0033] 5) According to the shape of the main anchorage casting positioning template, weave and tie the steel cage, and pour concrete after inspection and approval.

[0034] 6) When the concrete strength reaches 80% of the design value, remove the upper nuts, root embedded parts and wedge embedded parts of the main anchor bolt row, and tentatively remove the main anchor casting positioning mold. After verifying that the concrete strength meets the demolding conditions, remove the mold.

[0035] 7) Lay airbags on the main anchor bolt row.

[0036] 8) The flexible hinged cover plate is fixed by the hinged cover plate bolts on the steel shield plate and an airbag is laid.

[0037] 9) Lay the assembled flexible hinged cover plate and steel shield plate on the airbag.

[0038] 10) Install the main anchor wedge plate and tighten the main anchor nut.

[0039] In the installation of the air-supported dam, the main anchoring casting and positioning mold, the root embedded parts and wedge embedded parts, the main anchoring bolt row and the anchoring system are set up together with the steel cage, and the main anchoring foundation is cast with concrete in one go. After the concrete has gained strength, the main anchoring casting and positioning mold is removed, and the airbag wedge-shaped edge is laid on the bolts of the main anchoring row.

[0040] Then, using wedge-shaped pressure plates, flexible hinged cover plates, shield plate shafts, and steel shield fixing bolts, the wedge-shaped edges of the airbags and the steel shield are installed, thus realizing the construction of the air-supported shield dam.

[0041] It ensures the accuracy of the main anchor installation, meets the stringent and complex requirements of the main anchor positioning construction and the installation of the air shield dam, and solves the problems of human factors and labor intensity.

[0042] The present invention provides a simple, convenient, and precise construction method for the air-supported dam installation and anchoring system. It is installed together with the reinforcing cage, and the main anchoring foundation is cast in one go using concrete. This method saves on project costs, is highly efficient, and ensures high-quality air-supported dam installation.

[0043] The main anchoring system of this invention has a simple manufacturing process, which can be obtained by metal cutting, drilling, welding and surface anti-corrosion treatment. The raw materials are readily available and the cost is low.

[0044] The advantages and effects of this invention are:

[0045] 1) The main anchoring system for the air-supported dam installation project of the present invention has a simple structure, is lightweight and aesthetically pleasing, and is easy to install, disassemble, maintain, transport and store. It is highly practical and the main anchoring pouring and positioning are accurate, meeting the stringent and complex requirements of the main anchoring bolt and main anchoring fixing construction and air-supported dam installation.

[0046] 2) The construction method of the present invention is simple, convenient and precise, with one-time concrete pouring, saving engineering costs, high installation efficiency and good installation quality of air shield dam.

[0047] 3) The manufacturing process of this invention is simple, the raw materials are readily available, and the cost is low. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the installation and anchoring system for the air-supported dam of the present invention.

[0049] Figure 2 This is a cross-sectional view of the air-supported dam installation and anchoring system of the present invention;

[0050] Figure 3 This is a three-dimensional schematic diagram of the positioning mold structure of the present invention;

[0051] Figure 4 This is a cross-sectional view of the root embedded part of the present invention;

[0052] Figure 5 This is a cross-sectional view of the wedge-shaped embedded part of the present invention;

[0053] Figure 6 This is a schematic diagram of the main anchor bolt row of the present invention;

[0054] Figure 7a This is a cross-sectional view of the wedge-shaped pressure plate of the present invention;

[0055] Figure 7b This is a three-dimensional schematic diagram of the wedge-shaped pressure plate of the present invention;

[0056] Figure 7c This is a three-dimensional schematic diagram of the wedge-shaped pressure plate of the present invention;

[0057] Figure 8a This is a schematic diagram of the hinge cover plate of the present invention;

[0058] Figure 8b This is a cross-sectional view of the hinge cover plate of the present invention.

[0059] Figures 1-2 Markings: 1-Main anchoring casting positioning mold, 2-Root embedded part, 3-Wedge embedded part, 4-Main anchoring bolt row, 5-Wedge pressure plate, 6-Flexible hinge cover plate, 7-Airbag wedge edge, 8-Steel shield, 9-Shield plate shaft, 10-Steel shield fixing bolt.

[0060] Figure 3 In the middle, the markings are: 101-positioning plate, 102-mold positioning hole, 103-front baffle, 104-vent hole, 105-root embedded part positioning hole, 106-rear baffle, 107-wedge embedded part positioning hole, 108-side baffle, 109-side baffle connecting hole, 110-rib plate, 111-lifting hole.

[0061] Figure 4 In the middle, the markings are: 201-root embedded main board, 202-stiffening plate, 203-shear nail, 204-positioning bolt.

[0062] Figure 5 In the middle, markings are: 301-wedge embedded main board, 202-stiffening plate, 203-shear nail, 204-positioning bolt.

[0063] Figure 6 Markings: 401-Main anchor bolt, 402-Anchoring row bracket, 403-Upper positioning nut of bolt row, 404-Lower positioning nut of bolt row.

[0064] Figures 7a-7c Markings: 5-Wedge-shaped pressure plate, 51-Wedge-shaped buckle foot, 511-Top pressure head with dumbbell-shaped top of buckle foot, 52-Stepped anchor bolt hole, 521-Upper step hole, 522-Lower step hole, 53-Root mold dumbbell-shaped pressure foot, 54-Flat convex cavity, 55-Flat semi-convex cavity, 56-Rib, 57-Lifting hole, 58-Upper surface plate.

[0065] Figures 8a-8b Markings: 61-Wedge-shaped part, 62-Hinged part, 63-Circular fixing part, 64-Main anchor bolt hole, 65-Shaped anti-detachment round bar. Detailed Implementation

[0066] The following is in conjunction with the appendix Figure 1 -8 and the embodiments provide a further detailed description of the present invention.

[0067] Obviously, the described embodiments are merely representative embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0068] In the description of this invention, the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown in Figures 8-8 are merely for the purpose of simplifying the description of the present invention and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, all dimensions are measured from the centerline.

[0069] Example 1

[0070] This inland river in a certain province, historically the largest tributary in the region, is now an independent river flowing into the sea and also the inland river with the richest water resources. Its basin lies in the central-eastern part of the province, flowing through several cities and counties before emptying south into the sea, with a total length of 415 kilometers. To fully realize its significant impact and benefits in water security, water resources, water environment, water ecology, water landscape, water culture, water management, and water economy, a 3.8-meter-high, 410-meter-long air-shield dam is to be constructed. For this project to function effectively and achieve high quality, the anchoring system and its installation must be properly addressed.

[0071] The air shield dam installation and anchoring system and method of the present invention were adopted.

[0072] like Figures 1-2 As shown, an air-supported dam installation and anchoring system includes: a main anchoring casting and positioning mold 1, with a positioning plate 101 having mold positioning holes 102; a front baffle 103 having two rows of parallel and alternately distributed vent holes 104 and root embedded part positioning holes 105; a rear baffle 106 having a row of alternately distributed vent holes 104 and wedge embedded part positioning holes 107; a side baffle 108 having side baffle connection holes 109; a rib plate 110 having lifting holes 111; a root embedded part 2 including a root embedded part main plate 201, a stiffening plate 202, a shear nail 203, and a positioning bolt 204; and a wedge embedded part 3 including a wedge. Embedded main body 301, stiffening plate 202, shear nail 203, positioning bolt 204; main anchor bolt row 4, including main anchor bolt 401, anchor row bracket 402, upper positioning nut 403 and lower positioning nut 404 of bolt row; wedge-shaped pressure plate 5, including wedge-shaped buckle 51, top pressure head 511 with dumbbell head at the top of buckle, several stepped anchor bolt holes 52, including upper stepped hole 521 for fixing the nut of anchor bolt, lower stepped hole 522 for passing anchor bolt, dumbbell head pressure foot 53 of root mold, flat convex cavity 54, cavity with ribs 56 and lifting hole 57, flat semi-convex cavity 55, and upper surface plate 58. The flat semi-convex cavity 55 is formed by two adjacent wedge-shaped pressure plates 5, which together constitute a complete convex cavity 54; the flexible hinge cover plate 6 includes a wedge-shaped part 61, a hinge part 62, a circular fixing part 63, a main anchor bolt hole 64, and a shaped anti-detachment round bar 65.

[0073] In this embodiment, the main anchoring casting positioning mold 1 is made of 304 stainless steel and has a total length of 2998mm. Each positioning plate has 11 Φ52 mold positioning holes 102 with a spacing of 250mm. The positioning holes at both ends of two adjacent main anchoring casting positioning molds are also equidistant, that is, the positioning holes at both ends of the mold are 124mm away from the side baffle 108. The side baffle is 4mm thick.

[0074] The front baffle 103 has two rows of parallel (99.3mm apart) alternately distributed vent holes 104 and root embedded part positioning holes 105. The root embedded part positioning holes at both ends of the front baffles of the two adjacent main anchoring casting positioning templates are also equidistant at 375mm intervals. The upper row of holes is Φ13.5mm, and the lower row is a strip hole Φ13.5mm with a hole spacing of 14.65mm.

[0075] The rear baffle 6 has a row of alternately distributed exhaust holes of Φ13.5mm104 and wedge positioning holes of Φ13.5mm107. The wedge embedded positioning holes at both ends of the rear baffles of the two adjacent main anchor casting positioning molds are also equidistant at 375mm.

[0076] The side baffle 108 has two connecting holes of Φ16mm109 for connecting adjacent molds.

[0077] Rib 110: Each template has three 4mm thick ribs. The first and third ribs each have two Φ50mm 111 lifting holes, which are symmetrically arranged on both sides of the center of gravity of the mold.

[0078] In this embodiment, the main anchor bolt 401 of the main anchor bolt row 4 is made of 304 stainless steel.

[0079] In this embodiment, the main anchor bolt row 4 is 2998mm long, the bolts are M48, the main anchor bolt 401 is 1000mm long, protrudes 20mm from the bottom beam of the anchor row, the distance between bolts is 250mm, and the distance between bolts at the end of the anchor row is 115mm.

[0080] In this embodiment, the wedge-shaped pressure plate 5 is made of cast iron.

[0081] The construction method of the air-supported dam installation and anchoring system in this embodiment:

[0082] 1) Install the wedge-shaped embedded part 3 on the rear baffle of the positioning template through the wedge-shaped embedded part positioning hole using positioning bolts 204, and install the root embedded part 2 on the front baffle of the positioning mold through the root embedded part positioning hole using positioning bolts 204.

[0083] 2) After the main anchoring casting positioning mold 1 is assembled with the wedge embedded part 3 and the root embedded part 2, the component is installed on the main anchoring bolt row 4 through the template positioning hole and fixed with the positioning nut 403 on the bolt row.

[0084] 3) The main anchoring casting positioning mold 1 is fixed to the root embedded part 2 and the wedge embedded part 3 by welding with channel steel through the fixing bracket 402 of the main anchoring bolt row 4.

[0085] 4) Inspect and verify the elevation, levelness, verticality, spacing, and reference point dimensions of the main anchor casting positioning template; after verification, further weld it firmly.

[0086] 5) According to the shape of the main anchoring casting positioning mold, weave and tie the steel cage, and pour concrete after inspection and approval.

[0087] 6) When the concrete strength reaches 80% of the design value, remove the positioning nuts 403 on the bolt row of the main anchor bolt row 4, the positioning bolts 204 of the root embedded part 2 and the wedge embedded part 3, and tentatively remove the main anchor casting positioning mold 1. After verifying that the concrete strength meets the demolding conditions, remove the mold.

[0088] 7) Lay airbags on the main anchor bolts 401 of the main anchor bolt row 4.

[0089] 8) The flexible hinge cover plate 6 is fixed by the hinge cover plate bolts 10 on the steel shield 8 and laid on the airbag.

[0090] 9) Lay the assembled flexible hinged cover plate 6 and steel shield 8 on the airbag.

[0091] 10) Install wedge plate 5 and tighten main anchor nut.

[0092] In the construction method of the main anchoring casting and positioning mold of the air shield dam installation project in this embodiment, the shear nails 203 are used to position and fix the root embedded part 2 and the wedge embedded part 3 respectively.

[0093] Example 2

[0094] A tributary in a mountainous province in China has poor water quality. A 2.5-meter-high and 40-meter-long air-supported dam was constructed to impound water. The air-supported dam installation and anchoring system and method of this invention were adopted.

[0095] In this embodiment, the main anchoring casting positioning mold 1 is made of Q355B carbon steel, with a total length of 2998mm. Each positioning plate has 11 Φ48 mold positioning holes 102 spaced 250mm apart.

[0096] In this embodiment, the main anchor bolt row 4 is 2998mm long, the bolts are M42, the main anchor bolt 401 is 840mm long, protrudes 20mm from the bottom beam of the anchor row, the distance between bolts is 250mm, and the distance between bolts at the end of the anchor row is 115mm.

[0097] In this embodiment, the main anchor bolt 401 is made of 316L stainless steel.

[0098] In this embodiment, the wedge-shaped pressure plate 5 is made of cast steel.

[0099] In addition, the manufacturing and installation methods in this embodiment are the same as in Embodiment 1.

[0100] This invention revolutionizes the positioning and construction methods of the air-supported dam installation and anchoring system. Positioning is improved, made lighter, and more precise; construction is simplified; the mold, root embeddings, wedge embeddings, and reinforcing cage are installed together, and concrete is poured in a single process. The mold is recyclable, saving project costs, increasing efficiency, and resulting in high-quality air-supported dam installation.

[0101] The anchoring system of this invention has a simple manufacturing process and good production stability; it can meet the requirements for simple and accurate positioning of anchors. It is particularly suitable for dam construction.

[0102] This invention creates a new economic growth point and provides a reference for the development of related theories and materials of anchoring systems and air shield dams, thus having significant social and economic benefits.

[0103] The above embodiments are preferred representative implementations of the present invention, but the present invention is not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the essence and principle of the present invention are equivalent substitution schemes and should be included within the protection scope of the present invention.

Claims

1. An air shield dam installation anchoring system characterized by: The main anchoring pouring positioning mold (1) includes a root embedded part (2), a wedge embedded part (3), a main anchoring bolt row (4), a wedge-shaped pressing plate (5) and a flexible hinge cover plate (6). The main anchoring pouring positioning mold (1) includes a positioning plate (101) provided with a mold positioning hole (102), a front baffle (103) provided with two rows of parallel and alternately distributed exhaust holes (104) and root embedded part positioning holes (105), a rear baffle (106) provided with one row of alternately distributed exhaust holes (104) and wedge embedded part positioning holes (107), a side baffle (108) provided with a side baffle connecting hole (109), a rib plate (110) provided with a lifting hole (111), the root embedded part (2) includes a root embedded part main plate (201) provided with a welded rib plate (202), a welded shear pin (203) and a welded positioning bolt (204), the rib plate (202), the shear pin (203) and the positioning bolt (204) are arranged on the root embedded part main plate (201) at intervals, the wedge embedded part (3) includes a wedge embedded part main plate (301) provided with a welded rib plate (202), a welded shear pin (203) and a welded positioning bolt (204), the rib plate (202), the shear pin (203) and the positioning bolt (204) are arranged on the wedge embedded part main plate (301) at intervals, the main anchoring bolt row (4) includes a main anchoring bolt (401), an anchoring row support (402), an upper positioning nut (403) and a lower positioning nut (404), the anchoring system is that the main anchoring pouring positioning mold (1), the root embedded part (2), the wedge embedded part (3) and the main anchoring bolt row (4) are arranged together with the steel reinforcement cage, the wedge embedded part (3) is installed on the rear baffle of the positioning mold through the wedge embedded part positioning hole and the positioning bolt (204), the root embedded part (2) is installed on the front baffle of the main anchoring pouring positioning mold (1) through the root embedded part positioning hole and the positioning bolt (204), after the main anchoring pouring positioning mold (1), the wedge embedded part (3) and the root embedded part (2) are assembled, the main anchoring pouring positioning mold (1) is installed on the main anchoring bolt row (4) through the mold positioning hole and is fixed by the upper positioning nut (403) of the main anchoring bolt row (4), the main anchoring pouring positioning mold (1) is fixed by the anchoring row support (402) of the main anchoring bolt row (4) and the root embedded part (2) and the wedge embedded part (3) through the channel steel, the main anchoring foundation is poured by the concrete once, after the concrete has the strength, the main anchoring pouring positioning mold (1) is removed, the air bag wedge-shaped edge (7) and the steel shield (8) are installed on the main anchoring bolt through the wedge-shaped pressing plate (5), the flexible hinge cover plate (6), the shield shaft (9) and the steel shield fixing bolt (10).

2. An air shield dam anchoring system as claimed in claim 1, wherein: The material of the main anchoring pouring positioning mold (1) includes Q355B carbon steel or 304 stainless steel, which is made into the main anchoring pouring positioning mold (1) through a welding process.

3. An air shield dam installation anchoring system as claimed in claim 2, wherein: Q355B carbon steel for corrosion treatment, namely the main anchor pouring positioning mold (1) is finished, need shot blasting, slag removal surface treatment, zinc plating and coating corrosion protection; the main anchor pouring positioning mold (1) with the concrete contact surface is not surface treatment and corrosion protection.

4. An air dam anchor system as claimed in claim 1, wherein: The root embedded part main plate (201) and the wedge embedded part main plate (301) are made of 304 stainless steel.

5. An air dam anchor system as claimed in claim 1, wherein: The rib plate (202), the shear pin (203) and the positioning bolt (204) are made of Q355B carbon steel.

6. An air shield dam installation anchoring system according to claim 1, wherein: The main anchor screw rod (401) is made of 304 or 316L stainless steel.

7. An air shield dam installation anchoring system as claimed in claim 1, wherein: The anchor row support (402) is made of channel steel and has the shape of a rectangle frame, and the direction of the channel is inward.

8. An air shield dam installation anchoring system according to claim 1, wherein: The main anchor bolt row (4) is made by the following steps: Step one: the main anchor screw rod (401) is passed through the round hole of the anchor row support (402) and is connected to the upper and lower contact surfaces of the main anchor screw rod (401) by full welding; Step two: the two vertical edge ends of the anchor row support (402) are fixed to the ends of the channel steel by full welding.

9. An air shield dam installation anchoring system according to claim 1, wherein: The wedge-shaped pressing plate (5) comprises a wedge-shaped buckle foot (51), a dumbbell-shaped top pressing head (511) at the top of the buckle foot, a plurality of stepped anchor bolt holes (52) including upper stepped holes (521) for installing anchor bolt nuts and lower stepped holes (522) for passing anchor screw rods, a root mold dumbbell-shaped pressing foot (53), a flat convex cavity (54), a cavity with a rib (56) and a lifting hole (57), a flat half-convex cavity (55), and an upper surface plate (58).

10. An air shield bank anchoring system as claimed in claim 9, wherein: The flat half-convex cavities (55) of two adjacent wedge-shaped pressing plates (5) form a complete flat convex cavity (54) when in use.

11. An air shield bank anchoring system as claimed in claim 9, wherein: The wedge-shaped pressing plate (5) is made of cast steel or cast iron and is subjected to simple mechanical processing and zinc spraying.

12. An air shield dam installation anchoring system according to claim 1, wherein: The flexible hinge cover plate (6) comprises a wedge-shaped part (61), a hinge part (62), a circular fixing part (63), a main anchor bolt hole (64), and a shaped anti-falling round rod (65).

13. An air shield bank anchoring system as claimed in claim 12, wherein: The flexible hinge cover plate (6) is made of fiber-reinforced ethylene-propylene-diene rubber sheets, and the shaped anti-falling round rod (65) is a steel wire rope.

14. An air shield dam installation anchoring system according to claim 12, wherein: The flexible hinge cover plate (6) is made by the following steps: Step one: a layer of rubber sheets and a layer of rubberized cord fabric are alternately laid in a mold, the rubber sheets are N+1 layers, and one layer of cord fabric is N layers; when laying, the rubber sheets are wound around the cylinder in the mold to form the main anchor bolt hole (64); at the same time, the shaped anti-falling round rod (65) is wrapped to prepare a preformed body of the flexible hinge cover plate (6); that is, the main anchor bolt hole (64) of the flexible hinge cover plate (6) product is not a post-punched hole, which effectively prevents the post-punched hole from being torn in application and effectively prevents the air shield dam from leaking or slow gas; Step two: the mold with the preformed body of the flexible hinge cover plate (6) is placed in a hot press tank for vulcanization; Step three: after the vulcanization process is completed, the mold is removed after cooling, and the flexible hinge cover plate (6) is prepared.

15. An air shield dam installation anchoring system according to claim 1, wherein: The shield plate shaft (9) is a metal cylindrical rod, which has self-lubricating effect, and is beneficial to the lifting movement of the steel shield plate and the air bag of the air shield dam.

16. A method of installing an air shield dam anchoring system according to any one of claims 1 to 15, wherein: The method comprises the following steps: Step one: install the wedge embedded part (3) on the backstop of the positioning template through the positioning bolt (204) in the wedge embedded part positioning hole, and install the root embedded part (2) on the front stop of the main anchoring pouring positioning mold (1) through the positioning bolt (204) in the root embedded part positioning hole; Step two: after the main anchoring pouring positioning mold (1) is assembled with the wedge embedded part (3) and the root embedded part (2), the main anchoring pouring positioning mold (1) is installed on the main anchoring bolt row (4) through the mold positioning hole, and is fixed by the positioning nut (403) on the main anchoring bolt row and the positioning nut (404) under the bolt row; Step three: the main anchoring pouring positioning mold (1) is fixed by the anchoring row support (402) of the main anchoring bolt row (4) and the root embedded part (2) and the wedge embedded part (3) through the channel steel; Step four: check the elevation, levelness, perpendicularity, spacing and reference point size of the main anchoring pouring positioning mold (1), and further weld firmly after the check is passed; Step five: according to the shape of the main anchoring pouring positioning mold (1), weave and bind the steel cage, and pour concrete after the check is passed; Step six: when the concrete strength reaches 80% of the design value, remove the positioning nut (403) on the bolt row of the main anchoring bolt row (4), the positioning bolt (204) of the root embedded part (2) and the wedge embedded part (3), and tentatively remove the main anchoring pouring positioning mold (1), and remove the mold after verifying that the concrete strength meets the demolding condition; Step seven: lay the air bag; Step eight: fix the flexible hinge cover plate (6) through the hinge cover plate bolt (10) on the steel shield (8); Step nine: lay the assembled flexible hinge cover plate (6) and the steel shield (8) on the air bag; Step ten: install the wedge-shaped pressing plate (5), and tighten the nut on the main anchoring screw rod (401).

Citation Information

Patent Citations

  • Air shield dam installation engineering anchoring system

    CN217150098U