A water-permeable cup-shaped nut block and a prefabrication method thereof

Abstract

A permeable cup-shaped nut block and a prefabrication method thereof, comprising: a nut block and a three-impeller permeable plate, wherein the three-impeller permeable plate is embedded and connected with the nut block. The three-impeller permeable plate comprises: a disc, a first impeller, a second impeller and a third impeller. Compared with the conventional technology, the present invention reduces the amount of stone materials and simplifies the manufacturing process by adding three slots at intervals at the bottom of the nut block and adding the three-impeller permeable plate through the slots, thereby achieving the purpose of free air permeability and water permeability and improving the wave-breaking ability and stability; the cavity of the nut block can be filled with soil for greening, which has a good ecological landscape effect.

Description

Technical Field

[0001] The invention relates to a face protection block for seawall, revetment and breakwater engineering, and in particular to a water-permeable cup-shaped nut block and a prefabrication method thereof. Background Art

[0002] Most of the protective projects such as embankments, breakwaters and revetments in coastal areas use artificial block face protection to weaken the impact of waves, reduce wave height and reduce the damage of waves to building structures. Among them, the nut block face protection introduced from abroad in the 1980s is widely used in seawall projects in Shanghai and Jiangsu due to its neat and beautiful appearance, simple and uniform installation, and relatively mature research results and design methods.

[0003] Since the nut block is provided with wave-breaking holes that pass through from top to bottom, in order to protect the internal soil, a stone cushion layer, crushed stone and geotextile filter layer are generally provided under the nut block. In the past ten years, in order to simplify the construction process and reduce the project investment, there have been bottom-sealed nut blocks or cup-shaped nut blocks that cancel the stone cushion layer and cast the bottom of the wave-breaking hole and the nut block as a whole, and drainage holes of different shapes are provided on the bottom plate. For example, patent CN200820157155.6 is provided with a number of narrow strip holes, patent CN201820996465.0 is provided with a number of round holes, and patent CN200820058711.4 is provided with a slot and a convex foot in addition to the drainage holes. The slots and convex feet of the adjacent nut blocks are matched to increase the integrity of the protective surface. These nut block bottom plates are all cast as a whole with concrete and the block. Due to the presence of multiple small drainage holes, prefabrication demoulding is difficult and the quality is difficult to guarantee; and the water permeability of the nut block is poor after the bottom is sealed, and the block is easily sucked out and damaged.

[0004] To solve the above problems, we made a series of improvements. Summary of the invention

[0005] The object of the present invention is to provide a water-permeable cup-shaped nut block and a prefabrication method thereof, so as to overcome the above-mentioned shortcomings and deficiencies existing in the prior art.

[0006] A water-permeable cup-shaped nut block, comprising: a nut block, a three-impeller water-permeable plate, wherein the three-impeller water-permeable plate is embedded and connected with the nut block;

[0007] Wherein, the three-impeller water-permeable plate comprises: a disc, a first impeller, a second impeller and a third impeller, and the first impeller, the second impeller and the third impeller are connected to the disc.

[0008] Furthermore, the nut block includes: a nut block body, a circular wave-eliminating hole, a first slot, a second slot, and a third slot. The circular wave-eliminating hole is arranged at the center of the nut block body, the first slot, the second slot and the third slot are arranged on the nut block body, the first slot is connected to the first impeller, the second slot is connected to the second impeller, and the third slot is connected to the third impeller.

[0009] Furthermore, planting soil is provided in the circular wave-breaking hole.

[0010] A method for prefabricating a water-permeable cup-shaped nut block comprises the following steps:

[0011] Step 1: Level the site, install the slot bottom mold, level the prefabricated site, and place the slot bottom mold on the leveled site;

[0012] Step 2: Process and install the inner and outer templates. Process and make the inner and outer templates according to the size. The inner template is a cylindrical shape with a bottom, and the outer template is a regular hexagonal cylinder. Install and position the processed inner and outer templates on the bottom template.

[0013] Step 3: pouring and curing, pouring concrete between the inner and outer molds, vibrating and plastering, and then sprinkling water for curing. The concrete strength grade shall not be less than C25;

[0014] Step 4: Turn over and remove the bottom mold. After the concrete has reached strength, turn the nut block over and place it, remove the slot bottom mold, and keep the outer mold and inner mold;

[0015] Step 5: pouring permeable materials to form a three-impeller permeable board. The permeable materials are formed by mixing a solidifying adhesive and aggregate. The volume ratio of the solidifying adhesive to the aggregate is 3:100, and the aggregate particle size is 1 to 5 cm.

[0016] Step 6: Remove the outer mold, flip it over again, remove the inner mold, and complete the prefabrication.

[0017] Furthermore, the curing adhesive in step 5 is polyurethane.

[0018] Beneficial effects of the present invention:

[0019] Compared with the traditional technology, the present invention adds three slots at intervals at the bottom of the nut block, eliminates the stone cushion layer, and installs a three-impeller permeable plate through the slot, thereby reducing the amount of stone used and simplifying the production process, thereby achieving the purpose of free air permeability and water permeability, and improving wave-breaking ability and stability; the cavity of the nut block can be filled with soil and greened, which has a better ecological landscape effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a top view of the present invention.

[0021] Figure 2 It is a bottom view of the present invention.

[0022] Figure 3 It is a bottom view of the nut block of the present invention.

[0023] Figure 4 It is a top view of the three-impeller water-permeable plate of the present invention.

[0024] Figure 5 It is a schematic diagram of the cross section of the present invention.

[0025] Figure 6 It is the overall arrangement effect diagram of the present invention.

[0026] Reference numerals:

[0027] The nut block 100 , the nut block body 110 , the circular wave-eliminating hole 120 , the first clamping groove 130 , the second clamping groove 140 and the third clamping groove 150 .

[0028] The three-impeller water-permeable plate 200 , the disc 210 , the first impeller 220 , the second impeller 230 , the third impeller 240 and the planting soil 300 . DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with specific embodiments. It should be understood that the following embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0030] Example 1

[0031] Figure 1 It is a top view of the present invention. Figure 2 It is a bottom view of the present invention. Figure 3 It is a bottom view of the nut block of the present invention. Figure 4 It is a top view of the three-impeller water-permeable plate of the present invention. Figure 5 It is a schematic diagram of the cross section of the present invention. Figure 6 It is the overall arrangement effect diagram of the present invention.

[0032] like Figure 1-6 As shown, a water-permeable cup-shaped nut block comprises: a nut block 100 and a three-impeller water-permeable plate 200, wherein the three-impeller water-permeable plate 200 is embedded and connected with the nut block 100;

[0033] The three-impeller water-permeable plate 200 includes a disk 210 , a first impeller 220 , a second impeller 230 and a third impeller 240 , and the first impeller 220 , the second impeller 230 and the third impeller 240 are connected to the disk 210 .

[0034] The nut block 100 includes: a nut block body 110, a circular wave-eliminating hole 120, a first slot 130, a second slot 140, and a third slot 150. The circular wave-eliminating hole 120 is arranged at the center of the nut block body 110. The first slot 130, the second slot 140, and the third slot 150 are arranged on the nut block body 110. The first slot 130 is connected to the first impeller 220, the second slot 140 is connected to the second impeller 230, and the third slot 150 is connected to the third impeller 240. The circular wave-eliminating hole 120 can be backfilled with planting soil 300 as needed.

[0035] A method for prefabricating a water-permeable cup-shaped nut block comprises the following steps:

[0036] Step 1: Level the site, install the slot bottom mold, level the prefabricated site, and place the slot bottom mold on the leveled site;

[0037] Step 2: Process and install the inner and outer templates. Process and make the inner and outer templates according to the size. The inner template is a cylindrical shape with a bottom, and the outer template is a regular hexagonal cylinder. Install and position the processed inner and outer templates on the bottom template.

[0038] Step 3: pouring and curing, pouring concrete between the inner and outer molds, vibrating and plastering, and then sprinkling water for curing. The concrete strength grade shall not be less than C25;

[0039] Step 4: Turn over and remove the bottom mold. After the concrete has reached strength, turn the nut block over and place it, remove the slot bottom mold, and keep the outer mold and inner mold;

[0040] Step 5: pouring permeable materials to form a three-impeller permeable board. The permeable materials are formed by mixing a solidifying adhesive and aggregate. The volume ratio of the solidifying adhesive to the aggregate is 3:100, and the aggregate particle size is 1 to 5 cm.

[0041] Step 6: Remove the outer mold, flip it over again, remove the inner mold, and complete the prefabrication.

[0042] The curing adhesive in step 5 is polyurethane.

[0043] The working principle of the present invention is to cast prefabricated permeable cup-shaped nut blocks in the prefabrication plant, and transport the blocks to the site after reaching the designed strength; level the slope surface, lay a layer of non-woven fabric, lay a layer of 20-30cm gravel or bagged gravel on the non-woven fabric, and finally place the permeable cup-shaped nut blocks one by one from bottom to top; arrange the entire slope surface in the above manner, and after the overall arrangement, cast concrete side beams at the foot of the slope, the top of the slope and the structural joints. Among them, the three-impeller permeable board uses polyurethane to bond the gravel. Through the bonding effect of polyurethane, the scattered gravel is formed into a relatively stable whole, and the porous water seepage structure between the natural gravel is retained.

[0044] The present invention adds three slots at intervals at the bottom of the nut block, eliminates the stone cushion layer, and installs a three-impeller water-permeable plate through the slots, thereby reducing the amount of stone used and simplifying the production process, thereby achieving the purpose of free air and water permeability and improving wave-breaking ability and stability; the cavity of the nut block can be filled with soil for greening, which has a good ecological landscape effect.

[0045] The specific implementation modes of the present invention are described above, but the present invention is not limited thereto. The present invention can also have various changes without departing from the purpose of the present invention.

Claims

1. A method for prefabricating a permeable cup-shaped nut block, characterized in that: The following steps are involved: Step 1: Level the site, install the slot bottom mold, level the prefabricated site, and place the slot bottom mold on the leveled site; Step 2: Process and install the inner and outer templates. Process and make the inner and outer templates according to the size. The inner template is a cylindrical shape with a bottom, and the outer template is a regular hexagonal cylinder. Install and position the processed inner and outer templates on the bottom template. Step 3: pouring and curing, pouring concrete between the inner and outer molds, vibrating and plastering, and then sprinkling water for curing. The concrete strength grade should not be less than C25; Step 4: Turn over and remove the bottom formwork. After the concrete has reached strength, turn the nut block over and place it, remove the slot bottom formwork, and retain the outer and inner forms. Step 5: pouring permeable material to form a three-impeller permeable board. The permeable material is made by mixing a curing adhesive and aggregate. The volume ratio of the curing adhesive to the aggregate is 3:100, and the aggregate particle size is 1 to 5 cm. Step 6: Remove the outer mold, flip it over again, remove the inner mold, and complete the prefabrication.

2. The method for prefabricating a water-permeable cup-shaped nut block according to claim 1, characterized in that: The curing adhesive in step 5 is polyurethane.

3. The method for prefabricating a water-permeable cup-shaped nut block according to claim 1, characterized in that: include: A nut block (100) and a three-impeller water-permeable plate (200), wherein the three-impeller water-permeable plate (200) is embedded and connected to the nut block (100); The three-impeller water-permeable plate (200) comprises a circular disc (210), a first impeller (220), a second impeller (230) and a third impeller (240), wherein the first impeller (220), the second impeller (230) and the third impeller (240) are connected to the circular disc (210).

4. The method for prefabricating a water-permeable cup-shaped nut block according to claim 3, characterized in that: The nut block (100) comprises: a nut block body (110), a circular wave-eliminating hole (120), a first clamping groove (130), a second clamping groove (140), and a third clamping groove (150); the circular wave-eliminating hole (120) is arranged at the center of the nut block body (110); the first clamping groove (130), the second clamping groove (140), and the third clamping groove (150) are arranged on the nut block body (110); the first clamping groove (130) is connected to the first impeller (220); the second clamping groove (140) is connected to the second impeller (230); and the third clamping groove (150) is connected to the third impeller (240).

5. The method for prefabricating a water-permeable cup-shaped nut block according to claim 4, characterized in that: Planting soil (300) is provided in the circular wave-dissipating hole (120).

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