Construction method of coral mortar-based bank protection structure

Abstract

This invention discloses a construction method for a coral sand mortar revetment structure. An embedded grid-type manhole cover is laid on the bank slope, and the inside of the manhole cover is filled with coral sand mortar. The manhole cover has embedded plastic grids and is reinforced with transverse, longitudinal, and vertical reinforcing ribs, ensuring the filled coral sand remains stably within the manhole cover, forming a stable revetment structure. Furthermore, the construction of this coral sand mortar revetment structure is very convenient: the embedded grid-type manhole cover can be easily rolled up before filling with mortar, allowing for prefabrication in the factory. While rolled up, the manhole cover is transported to the bank slope construction site, then unrolled and laid at the site, and finally, mortar is poured into the manhole cover.

Description

Technical Field

[0001] This invention belongs to the field of bank protection technology, and in particular to a construction method based on coral mortar bank protection structure. Background Technology

[0002] Bank protection is an engineering measure that artificially reinforces existing coastal slopes to protect them from wave and current erosion, as well as groundwater action, thus maintaining shoreline stability. Traditional bank protection structures involve laying concrete mortar bags and stones on the slope to achieve this purpose. This traditional method requires large quantities of concrete and natural stone, resulting in high costs and long construction periods. Furthermore, it is unsuitable for coastal areas and island / reef regions lacking concrete and stone resources. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a construction method based on coral mortar revetment structure.

[0004] This invention is achieved through the following technical solution:

[0005] A construction method based on coral mortar revetment structure includes the following steps:

[0006] Step 1: Level and smooth the slope surface of the bank.

[0007] Step 2: Lay geotextile on the bank slope, construct a wave-breaking wall at the top of the bank slope, and excavate a groove area at the bottom of the bank slope.

[0008] Step 3: The prefabricated built-in grid-type formwork bag is transported to the slope construction site in a rolled-up state. The built-in grid-type formwork bag includes a formwork bag body, horizontal reinforcing bars, vertical reinforcing bars, and a grid. Horizontal and vertical reinforcing bars are arranged at equal intervals on the top surface of the formwork bag body to form a grid array; horizontal and vertical reinforcing bars are also arranged at equal intervals on the bottom surface of the formwork bag body to form a grid array; the vertical reinforcing bars are connected between the intersections of the grid arrays on the top surface and the bottom surface of the formwork bag body; the grid is set inside the formwork bag body and is connected to the middle of the vertical reinforcing bars.

[0009] Then, the built-in grid-type formwork bags are laid out at the construction site of the bank slope, so that the top of the built-in grid-type formwork bags extends to the front edge of the wave-breaking wall and the bottom of the built-in grid-type formwork bags extends to the groove area at the bottom of the bank slope.

[0010] Step 4: Fill the built-in grid-type mold bag with coral sand. As the body of the built-in grid-type mold bag is supported, the grid inside is pulled up by the vertical reinforcing ribs. After the body of the mold bag is filled with coral sand, the grid is located at the middle height of the body of the mold bag, which plays the role of reinforcing the coral sand inside the body of the mold bag.

[0011] Step 5: After filling is completed, lay boulders in the grooved area at the bottom of the bank slope so that the bottom of the built-in grid-type mold bag is stably pressed into the boulders.

[0012] In the above technical solution, geotextile is also laid between the bank slope and the built-in grid-type formwork bag.

[0013] In the above technical solution, the built-in grid-type mold bag can be easily shrunk into a roll before being filled with mortar, thus facilitating transportation.

[0014] In the above technical solution, the number of grids inside the molded bag body is one or more layers.

[0015] In the above technical solution, the top surface of the built-in grid-type mold bag body is provided with an filling port for filling the built-in grid-type mold bag with coral mortar.

[0016] In the above technical solution, each 4*4 square of the grille corresponds to one square formed by the transverse reinforcing ribs and the longitudinal reinforcing ribs.

[0017] In the above technical solution, the wave-breaking wall is made of plain concrete or coral sand concrete.

[0018] In the above technical solution, the stone blocks are made of plain concrete or coral sand concrete.

[0019] The advantages and beneficial effects of this invention are as follows:

[0020] 1. This invention features a unique built-in grid-type geotextile bag structure. These geotextile bags are laid on the bank slope and filled with coral sand. This method eliminates the need for large amounts of concrete and stone materials, while fully utilizing the abundant local coral sand resources, resulting in lower costs. Because the built-in grid-type geotextile bag incorporates a plastic grid, and the bag itself is reinforced with transverse, longitudinal, and vertical reinforcing ribs, the filled coral sand remains stably within the geotextile bag, forming a stable bank protection structure.

[0021] 2. The coral mortar revetment structure of the present invention is very convenient to construct: the built-in grid-type mold bag can be easily rolled up before being filled with mortar, so that the built-in grid-type mold bag can be prefabricated in the factory in advance, transported to the bank slope construction site in the rolled-up state, and then the built-in grid-type mold bag is unrolled and laid at the bank slope construction site, and then mortar is injected into the mold bag body. Attached Figure Description

[0022] Figure 1 This is a construction flowchart of the construction method of the coral mortar revetment structure of the present invention.

[0023] Figure 2 This is a schematic diagram of the construction status of construction step 2 of the present invention.

[0024] Figure 3 This is a schematic diagram of the construction status of construction step 3 of the present invention.

[0025] Figure 4 This is a schematic diagram of the construction status of step 4 of the present invention.

[0026] Figure 5 This is a schematic diagram of the construction status of step 5 of the present invention.

[0027] Figure 6 This is a schematic diagram of the internal cross-sectional structure of the built-in grid-type mold bag used in this invention.

[0028] Figure 7 This is a schematic diagram of the structure of the mold bag body of the built-in grid-type mold bag used in this invention.

[0029] Figure 8 This is a schematic diagram of the grille structure.

[0030] Figure 9 This is a schematic diagram of the connection structure between a single-layer grid and the main body of the molded bag (only a single compartment of the molded bag is shown).

[0031] Figure 10 This is a schematic diagram of the connection structure between the two-layer grid and the main body of the molded bag (only a single compartment of the molded bag is shown).

[0032] For those skilled in the art, other related figures can be obtained from the above figures without any creative effort. Detailed Implementation

[0033] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below with reference to specific embodiments.

[0034] This invention designs a construction method based on coral mortar revetment structure, see appendix. Figure 1 The specific construction steps are as follows:

[0035] Step 1: Level and smooth the slope surface of the bank slope. The slope ratio must not be steeper than the designed slope. If the flatness does not meet the requirements, gravel or small sandbags can be laid to level it.

[0036] Step 2, see appendix Figure 2 One to three layers of geotextile 1 are laid on the bank slope, and a wave-breaking wall 2 is constructed at the top of the bank slope, while a groove area 3 is excavated at the bottom of the bank slope. Preferably, the wave-breaking wall 2 is made of plain concrete or coral sand concrete.

[0037] Step 3, see appendix Figure 3 The pre-made built-in grid-type molded bags 4 are transported to the bank slope construction site in a rolled-up state. Then, the built-in grid-type molded bags are unrolled and laid at the bank slope construction site, so that the top of the built-in grid-type molded bags 4 extends to the front edge of the wave-breaking wall 2 and the bottom of the built-in grid-type molded bags 4 extends to the groove area at the bottom of the bank slope.

[0038] See Appendix below. Figure 6 -Attached Figure 10 The specific structure of the built-in grid-type molded bag 4 will be described in detail.

[0039] The built-in grid-type molded bag 4 includes a bag body 401, transverse reinforcing ribs (or "reinforcing warp") 402, longitudinal reinforcing ribs (or "reinforcing weft") 403, vertical reinforcing ribs (or "hanging ribs") 404, and a grid 405. The bag body 401 is bag-shaped, including a top surface, a bottom surface, and four side covers. Transverse reinforcing ribs 402 and longitudinal reinforcing ribs 403 are arranged at equal intervals on the top surface of the bag body 401 to form a grid array; transverse reinforcing ribs 402 and 403 are also arranged at equal intervals on the bottom surface of the bag body 401. 02 and longitudinal reinforcing ribs 403 form a grid array; the vertical reinforcing ribs 404 are connected between the intersection of the grid array on the top surface of the molded bag body 401 and the intersection of the grid array on the bottom surface of the molded bag body 401 (that is, one end of the vertical reinforcing rib 404 is connected to the intersection of the transverse reinforcing ribs 402 and the longitudinal reinforcing ribs 403 on the top surface of the molded bag body 401, and the other end of the vertical reinforcing rib 404 is connected to the intersection of the transverse reinforcing ribs 402 and the longitudinal reinforcing ribs 403 on the bottom surface of the molded bag body 401); the structure of the grid 405 is shown in the appendix. Figure 8 For existing conventional products, the grille 405 is installed inside the molded bag body 401, and the grille 405 is connected to the middle of the vertical reinforcing rib 404 by a connecting ring 406 (attached). Figure 6In this way, when mortar is filled into the formwork bag body 401, as the formwork bag body 401 is supported, the grid 405 is pulled up by the vertical reinforcing ribs 404. Finally, when the formwork bag body 401 is filled with mortar, the grid 405 is located at the middle height position inside the formwork bag body 401, thereby playing the role of reinforcing the mortar inside the formwork bag body 401.

[0040] It should be noted that the built-in grid-type formwork bag can be easily rolled up before being filled with mortar (the grid is made of plastic and can be rolled up, thus not affecting the overall rolling of the built-in grid-type formwork bag), which facilitates transportation. The built-in grid-type formwork bags are prefabricated in the factory and transported to the bank slope construction site in the rolled-up state. Then, the built-in grid-type formwork bags are unrolled and laid at the bank slope construction site.

[0041] Furthermore, the number of grids 405 within the molded bag body 401 is not limited to one layer; it can also be multiple layers, for example, see Appendix Figure 10 It can be two layers. The top surface of the inner grid-type molded bag 4 is provided with an inlet for filling the inner grid-type molded bag 4 with coral mortar. Preferably, see the attached diagram. Figure 9 Each 4*4 square of the grid 405 corresponds to one square formed by the transverse reinforcing rib 402 and the longitudinal reinforcing rib 403.

[0042] Step 4, see appendix Figure 4 Coral mortar is filled into the built-in grid-type mold bag 4. As the mold bag body 401 of the built-in grid-type mold bag is supported, the grid 405 inside is pulled up by the vertical reinforcing ribs 404. Finally, when the mold bag body 401 is filled with coral mortar, the grid 405 is located at the middle height position inside the mold bag body 401, thereby playing the role of reinforcing the coral sand inside the mold bag body 401.

[0043] Furthermore, the formwork bags should be kept moist before filling. Filling should proceed sequentially from bottom to top, compartment by compartment. The pump pipe should be securely fastened to the filling port of the formwork bag. When the pump pipe is inserted into the filling port, a pressure-reducing baffle should be installed at the pump pipe inlet. The stress on the formwork bag should be observed during filling. The filling flow rate should be (10-15) m³ / s. 3 The filling pressure should be (0.2~0.3) MPa per hour.

[0044] Step 5, after filling is complete, see appendix. Figure 5 Stone blocks 5 are laid in the grooved area at the bottom of the bank slope, so that the bottom of the built-in grid-type mold bag 4 is stably pressed into the stone blocks 5. Preferably, the stone blocks 5 are made of plain concrete or coral sand concrete.

[0045] The present invention has been described above by way of example. It should be noted that any simple modifications, alterations or other equivalent substitutions that can be made by those skilled in the art without creative effort without departing from the core of the present invention fall within the protection scope of the present invention.

Claims

1. A construction method based on coral mortar revetment structure, characterized in that, Includes the following steps: Step 1: Level and smooth the slope surface of the bank. Step 2: Lay geotextile on the bank slope, construct a wave-breaking wall at the top of the bank slope, and excavate a groove area at the bottom of the bank slope. Step 3: The prefabricated built-in grid-type formwork bag is transported to the slope construction site in a rolled-up state. The built-in grid-type formwork bag includes a formwork bag body, horizontal reinforcing bars, vertical reinforcing bars, and a grid. Horizontal and vertical reinforcing bars are arranged at equal intervals on the top surface of the formwork bag body to form a grid array; horizontal and vertical reinforcing bars are also arranged at equal intervals on the bottom surface of the formwork bag body to form a grid array; the vertical reinforcing bars are connected between the intersections of the grid arrays on the top surface and the bottom surface of the formwork bag body; the grid is set inside the formwork bag body and is connected to the middle of the vertical reinforcing bars. Then, the built-in grid-type formwork bags are laid out at the construction site of the bank slope, so that the top of the built-in grid-type formwork bags extends to the front edge of the wave-breaking wall and the bottom of the built-in grid-type formwork bags extends to the groove area at the bottom of the bank slope. Step 4: Fill the built-in grid-type mold bag with coral sand. As the body of the built-in grid-type mold bag is supported, the grid inside is pulled up by the vertical reinforcing ribs. After the body of the mold bag is filled with coral sand, the grid is located at the middle height of the body of the mold bag, which plays the role of reinforcing the coral sand inside the body of the mold bag. Step 5: After filling is completed, lay boulders in the grooved area at the bottom of the bank slope so that the bottom of the built-in grid-type mold bag is stably pressed into the boulders.

2. The construction method based on coral mortar revetment structure according to claim 1, characterized in that: Geotextile was also laid between the bank slope and the built-in grid-type geotextile bag.

3. The construction method based on coral mortar revetment structure according to claim 1, characterized in that: The built-in grid-type molded bag shrinks into a roll before being filled with mortar, making it convenient for transportation.

4. The construction method based on coral mortar revetment structure according to claim 1, characterized in that: The number of grids inside the molded bag body can be one or more.

5. The construction method based on coral mortar revetment structure according to claim 1, characterized in that: The top surface of the built-in grid-type molded bag is provided with an inlet for filling the built-in grid-type molded bag with coral mortar.

6. The construction method based on coral mortar revetment structure according to claim 1, characterized in that: Each 4x4 grid corresponds to one grid formed by the transverse and longitudinal reinforcing bars.

7. The construction method based on coral mortar revetment structure according to claim 1, characterized in that: The wave-breaking wall is made of plain concrete or coral sand concrete.

8. The construction method based on coral mortar revetment structure according to claim 1, characterized in that: The boulders are made of plain concrete or coral sand concrete.

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