Precise repairing method for local damaged area of artificial revetment

Abstract

The invention discloses a precise repairing method for a local damaged area of an artificial revetment, which comprises the following steps of: cleaning the damaged area of the revetment, and removing sludge, sundries and loose broken stones; performing three-dimensional laser scanning to generate a three-dimensional digital model; building a BIM model, and designing a repairing scheme; manufacturing a repairing plane material, and preparing a backfilling material; field repairing is conducted, specifically, the repairing prefabricated part is transported to the field to be repaired and installed; and filling and beautifying edge gaps of the damaged area. According to the method, through measurement modeling, a repair scheme can be designed in detail in a three-dimensional model, a revetment surface layer and a backfill material are designed respectively according to a surface protection material, a damage position and the size, the repair quality and effect are ensured, the precision and efficiency are higher, material waste is avoided, and the work efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of civil engineering technology, and in particular to a method for accurately repairing a partially damaged area of ​​an artificial bank protection. Background Art

[0002] Artificial revetments are frequently damaged due to the combined effects of many factors, such as long-term erosion by water flow, frequent fluctuations in water levels, impact forces generated by ships, and natural aging of materials over time. Currently, the most common repair method for artificial revetments is veneer repair technology. In practical applications, this technology mainly repairs the surface damage of the revetment by pasting corresponding repair materials on the damaged and cracked parts, thereby restoring the appearance and some functions of the revetment to a certain extent.

[0003] However, the veneer repair technology has many obvious shortcomings. First, during the construction process, since this technology belongs to water-related construction, the construction area is often within the scope of the waterway, which inevitably affects the normal navigation safety of the waterway. For example, the occupation of construction equipment may reduce the effective width of the waterway, resulting in obstruction of the passage of passing ships, and may even cause safety accidents such as collisions. Secondly, the construction cost of the veneer repair technology is relatively high. This is because it not only requires the use of special repair materials, but also has relatively strict requirements on construction processes and technologies, requiring professional construction personnel and equipment, thereby increasing labor costs and equipment rental costs. Furthermore, from the perspective of the stability of the repair effect, the repair structure formed by the veneer repair technology has poor stability. Due to the long-term existence of external forces such as water scouring and ship collision, the bonding force between the pasted repair material and the original revetment structure may gradually decrease, causing the repaired part to easily fall off or break again, and it is impossible to effectively guarantee the function and service life of the artificial revetment for a long time. Summary of the invention

[0004] The purpose of the present invention is to provide a method for accurately repairing a partially damaged area of ​​an artificial revetment, so as to calculate the volume of the damaged hole by accurately measuring the three-dimensional shape of the damaged hole and the surrounding terrain and the texture of the surface of the revetment, draw relevant repair components in combination with BIM, give the shape parameters of specific relevant components, and directly install them on site through prefabrication, thereby solving the shortcomings of unclear shape and volume of the damaged hole, waste of materials, time and labor during construction, and coordination with the original interface after repair.

[0005] The technical solution to achieve the above purpose is:

[0006] A method for accurately repairing a partially damaged area of ​​an artificial revetment, comprising:

[0007] Step S1, cleaning the damaged area of ​​the revetment, removing silt, debris and loose gravel;

[0008] Step S2, three-dimensional laser scanning to generate a three-dimensional digital model;

[0009] Step S3, establishing a BIM model and designing a repair plan;

[0010] Step S4, making repair surface material and preparing backfill material;

[0011] Step S5, on-site repair, transporting the repair prefabricated parts to the site for repair and installation;

[0012] Step S6, filling and beautifying the gaps at the edges of the damaged area.

[0013] Preferably, the cleaning of the damaged area of ​​the revetment in step S1 is carried out by hydraulic flushing.

[0014] Preferably, in step S2, the volume of the damaged hole is calculated based on the three-dimensional digital model and the texture of the surrounding terrain and the surface layer of the revetment.

[0015] Preferably, step S3 comprises:

[0016] S31, surface material design, determine the minimum processing thickness and damage size, and design the repair module;

[0017] S32, backfill material design, determine the filling material, and deduct the volume of the surface layer when calculating the amount.

[0018] Preferably, in step S32, vertical revetments and revetments with steeper slopes are repaired by making mold bags with geotextiles and filling them with fillers.

[0019] Preferably, step S4 comprises:

[0020] Mould making: designing a model based on the surface material of the damaged area of ​​the revetment and making a prefabricated part processing mould;

[0021] Rebar processing and installation, installing the connecting reinforcement on the back of the precast mold.

[0022] Preferably, the length of the connecting steel bars is determined based on the hole model.

[0023] Preferably, in step S5, the damaged area of ​​the revetment is flushed again before installation.

[0024] Preferably, step S5 comprises:

[0025] Step S51, prefabricated parts transportation and site preparation, transporting the repair prefabricated parts to the construction site;

[0026] Step S52, prefabricated parts are installed using a crane in the position and direction required by the design;

[0027] Step S53, installing and temporarily fixing the connecting piece, connecting the connecting piece to the prefabricated part and the rear backfill material;

[0028] Step S54, grouting and stabilization, injecting grouting material into the gap between the prefabricated component and the damaged area through grouting equipment.

[0029] Preferably, the step S6 is to fill the gaps with a caulking material having a color and material similar to that of the revetment surface, and then perform grinding and trimming.

[0030] The beneficial effects of the present invention are:

[0031] The repair plan is designed and optimized in advance, which is more accurate and reliable. Through measurement and modeling, the repair plan can be designed in detail in the 3D model. The revetment surface layer and backfill material can be designed separately according to the surface material, damage location and size to ensure the quality and effect of the repair.

[0032] Centralized processing of prefabricated parts with high precision and efficiency. According to the detailed repair plan designed, the prefabricated parts are processed centrally to avoid manual cutting or smashing on site, with higher precision and efficiency, and avoid material waste.

[0033] Accurately calculate and prepare materials to avoid waste or shortage. According to the designed repair plan, relevant materials can be prepared in advance to avoid the situation of bringing too many materials or insufficient materials for on-site construction, thus improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a flow chart of the method for accurate repair of the local damaged area of ​​artificial revetment of the present invention;

[0035] Figure 2 It is a schematic diagram of the damage of the artificial revetment in the present invention;

[0036] Figure 3 It is a specific flow chart of establishing a BIM model design repair plan in step S3 of the present invention;

[0037] Figure 4 It is a specific flow chart of the on-site repair of step S5 in the present invention. DETAILED DESCRIPTION

[0038] The present invention will be further described below in conjunction with the accompanying drawings.

[0039] See also Figure 1 and Figure 2 The method for accurately repairing the damaged area of ​​the artificial revetment of the present invention comprises the following steps:

[0040] Step S1, cleaning the damaged area of ​​the revetment, removing silt, debris and loose gravel.

[0041] Use water flow with a certain pressure to fully flush the damaged area of ​​the revetment. The strong water flow can effectively wash away the silt accumulated in the damaged area. The long-term accumulation of this silt may affect the repair effect, and may carry harmful substances such as bacteria to accelerate the damage of the revetment. At the same time, the water flow can also wash away debris, such as branches, garbage, etc. These debris may hinder the progress of the repair work and retain water in the gaps, causing further corrosion. For loose gravel, hydraulic flushing can completely remove it to avoid the loose gravel affecting the stability of the repair structure during the subsequent repair process;

[0042] Step S2: 3D laser scanning to generate a 3D digital model.

[0043] Using 3D laser scanning technology, the spatial coordinate information of the damaged area of ​​the revetment is accurately measured by emitting laser beams and receiving reflected light. The equipment scans the damaged area from multiple angles and in all directions, quickly acquiring a large amount of point cloud data. These data are processed by professional software and converted into an intuitive 3D digital model, which fully and meticulously presents the actual shape, size, depth and other geometric features of the damaged area, providing an accurate data basis for subsequent analysis and repair plan design;

[0044] Step S3, reference Figure 3 , establish BIM model and design repair plan.

[0045] Step S31, surface material design, determine the minimum processing thickness and damage size, design repair module: import the generated 3D digital model into BIM modeling software, perform necessary format conversion and data optimization on the model, and ensure that the model can run normally in BIM software. In BIM software, according to the design drawings and relevant specifications of the revetment, the original structural model of the revetment is established, and the 3D digital model of the damaged area is integrated with it for comparative analysis.

[0046] Use the analysis tools of BIM software to conduct a detailed analysis of the damaged area of ​​the revetment. By measuring the geometric dimensions of the damaged area, such as area, depth, and length, combined with the structural characteristics and design requirements of the revetment, evaluate the degree of damage to the revetment and determine the impact of the damage on the overall stability and function of the revetment. Determine the minimum processing thickness based on the type of surface material. Different surface materials, such as concrete and stone, have different minimum processing thickness standards due to their own physical properties and structural requirements. Combined with the location and size of the damage in the three-dimensional model, accurately calculate and design the repair revetment surface material module. If there are structural seams in the damaged area, in order to ensure the integrity and stability after repair, a block design is required to ensure that the installation of the surface material module meets the structural force and waterproofing requirements, and each module is well connected with the surrounding structure.

[0047] Step S32, backfill material design, determine the caulking material and amount: select the appropriate caulking material according to the specific size and shape of the hole. When the hole is small, fine stone concrete can effectively fill the small hole and closely integrate with the surrounding structure due to its good fluidity and filling properties; if the hole is large, concrete or a combination of block stone and concrete is selected. The block stone provides a certain support strength, and the concrete fills the gap to enhance the integrity of the structure. When calculating the amount of caulking material, the surface layer volume needs to be deducted to avoid material amount calculation errors and ensure construction cost control and repair effect.

[0048] In addition, for vertical revetments and revetments with steep slopes, geotextiles are used to make mold bags and fill them with backfill for repair. Geotextiles have good water permeability and isolation, which can prevent the loss of backfill while allowing water to seep out to ensure structural stability. The backfill is placed in the mold bag made of geotextiles and laid according to the shape and size of the damaged revetment, so that it fits the damaged area tightly, playing a role in repairing and reinforcing. ;

[0049] Step S4, making repair surface material and preparing backfill material.

[0050] According to the design model of the surface material of the damaged area of ​​the revetment, the prefabricated parts processing mold is made of steel, wood or plastic. The size and shape of the mold should be accurately matched with the design model, and the mold surface should be smooth and flat to ensure the molding quality of the prefabricated parts. After the mold is made, the mold is inspected and debugged to ensure the accuracy and reliability of the mold.

[0051] Determine the length of the connecting steel bars according to the hole model, and use steel bar processing equipment to cut, bend and process the steel bars. Install the processed connecting steel bars on the back of the prefabricated mold. The installation position and spacing of the steel bars should meet the design requirements to ensure that the steel bars can effectively penetrate the backfill material at the rear, so that the repair surface material prefabricated parts are firmly connected with the backfill material at the rear, forming a stable overall structure and enhancing the strength of the repaired revetment.

[0052] Step S5, reference Figure 4 , on-site repair, transport the repair prefabricated parts to the site for repair and installation.

[0053] Transport the prepared repair prefabricated parts to the damaged revetment site, and rinse the damaged area again before installation to ensure that the surface is clean and free of impurities, so as to ensure good bonding between the prefabricated parts and the damaged area. Install the surface material connectors together before the backfill material begins to set and harden. For some parts that are difficult to fix or are greatly affected by external forces such as water flow, take temporary fixing measures, such as using supports and clamps, to prevent the prefabricated parts from shifting during installation. After the installation is completed, fill the gaps between the prefabricated parts and the surrounding structures densely by grouting to ensure that the repair components are installed firmly;

[0054] Step S51, prefabricated parts transportation and site preparation: Use transport vehicles to transport the repair prefabricated parts to the construction site. During transportation, the prefabricated parts are properly protected to prevent them from being hit or damaged. Before the prefabricated parts arrive at the site, the damaged area of ​​the revetment is rinsed again to ensure that the damaged area is clean. At the same time, installation equipment such as cranes and grouting equipment are set up at the construction site, and necessary construction scaffolding and safety protection facilities are built.

[0055] Step S52, prefabricated parts installation: Use a crane to lift the repair prefabricated parts to the damaged area of ​​the revetment and install them in the position and direction required by the design. During the installation process, pay attention to the fit between the prefabricated parts and the damaged area to ensure that the prefabricated parts are installed flat and stable. For some larger or heavier prefabricated parts, multiple lifting points or auxiliary supports can be used for installation to ensure a safe and reliable installation process.

[0056] Step S53, installation and temporary fixation of connectors: Before the backfill material is initially set and hardened, the surface material connectors are installed together. According to the design requirements, the connectors are connected to the prefabricated parts and the backfill material at the rear by bolts, welding, etc. For some prefabricated parts that are prone to displacement or shaking, temporary fixing measures are taken, such as using supports, pull rods and other tools to ensure the stability of the prefabricated parts during installation.

[0057] Step S54, grouting and stabilization: After the prefabricated parts are installed, grouting equipment is used to inject grouting materials into the gaps between the prefabricated parts and the damaged areas to ensure that the gaps are densely filled. During the grouting process, the grouting pressure and grouting volume are controlled to prevent the grouting materials from overflowing or causing voids. After the grouting materials are initially set, the repair components are inspected. If there is any looseness or instability, they are promptly handled to ensure that the repair components are firmly installed.

[0058] Step S6, fill and beautify the gaps at the edges of the damaged area, use a caulking material with a color and material similar to the surface of the revetment to fill the gaps, and after filling, grind and trim the gap surface to make it smooth and consistent with the revetment surface to achieve a beautiful effect.

[0059] The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Those skilled in the relevant technical field may make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also belong to the scope of the present invention and should be defined by the claims.

Claims

1. A method for accurately repairing a partially damaged area of ​​an artificial revetment, characterized in that: include: Step S1, cleaning the damaged area of ​​the revetment, removing silt, debris and loose gravel; Step S2, three-dimensional laser scanning to generate a three-dimensional digital model; Step S3, establishing a BIM model and designing a repair plan; Step S4, making repair surface material and preparing backfill material; Step S5, on-site repair, transporting the repair prefabricated parts to the site for repair and installation; Step S6, filling and beautifying the gaps at the edges of the damaged area.

2. According to claim 1, a method for accurately repairing a partially damaged area of ​​an artificial revetment is characterized in that: In step S1, the damaged area of ​​the revetment is cleaned by hydraulic flushing.

3. The method for accurately repairing a partially damaged area of ​​an artificial revetment according to claim 1 is characterized in that: In the step S2, the volume of the damaged hole is calculated based on the three-dimensional digital model and the texture of the surrounding terrain and the surface layer of the revetment.

4. The method for accurately repairing a partially damaged area of ​​an artificial revetment according to claim 1 is characterized in that: The step S3 comprises: S31, surface material design, determine the minimum processing thickness and damage size, and design the repair module; S32, backfill material design, determine the filling material, and deduct the volume of the surface layer when calculating the amount.

5. The method for accurately repairing a partially damaged area of ​​an artificial revetment according to claim 4 is characterized in that: In step S32, vertical revetments and revetments with steeper slopes are repaired by making mold bags with geotextiles and filling them with fillers.

6. The method for accurately repairing a partially damaged area of ​​an artificial revetment according to claim 1 is characterized in that: The step S4 comprises: Mould making: designing a model based on the surface material of the damaged area of ​​the revetment and making a prefabricated part processing mould; Rebar processing and installation, installing the connecting reinforcement on the back of the precast mold.

7. The method for accurately repairing a partially damaged area of ​​an artificial revetment according to claim 6 is characterized in that: The length of the connecting steel bar is determined according to the hole model.

8. The method for accurately repairing a partially damaged area of ​​an artificial revetment according to claim 1 is characterized in that: In the step S5, the damaged area of ​​the revetment is flushed again before installation.

9. The method for accurately repairing a partially damaged area of ​​an artificial revetment according to claim 1 is characterized in that: The step S5 comprises: Step S51, prefabricated component transportation and site preparation, transporting the repair prefabricated component to the construction site; Step S52, prefabricated parts are installed using a crane in the position and direction required by the design; Step S53, installing and temporarily fixing the connecting piece, connecting the connecting piece to the prefabricated part and the rear backfill material; Step S54, grouting and stabilization, injecting grouting material into the gap between the prefabricated component and the damaged area through grouting equipment.

10. The method for accurately repairing a partially damaged area of ​​an artificial revetment according to claim 1, characterized in that: The step S6 is to fill the gaps with a caulking material that is similar in color and material to the surface of the revetment, and then perform grinding and trimming.

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