An emergency repairing device and method for a marine slope protection structure

Abstract

This invention discloses an emergency repair device and method for marine slope protection structures, including an internal structure of a seawall, a riprap layer, a toe support structure, reinforced gabions, and gabion blocks. A crushed stone cushion layer is laid on top of the internal structure of the seawall, and a masonry layer is laid on top of the riprap layer. By setting up the toe support structure, a precast base plate is embedded in the damaged area and inserted into the soil layer of the internal structure of the seawall using insert rods. The insertion mechanism further extends to ensure close contact and positioning with the soil layer. Subsequently, the riprap layer, masonry layer, and polyurethane crushed stone layer are laid. Reinforcing bars increase the stability and seismic resistance of the riprap layer, masonry layer, and polyurethane crushed stone layer. Finally, gabion blocks and reinforced gabions are laid to prevent further damage and reduce economic losses.

Description

Technical Field

[0001] This invention relates to the field of marine engineering slope protection technology, specifically to an emergency repair device and repair method for marine engineering slope protection structures. Background Technology

[0002] Slope protection refers to the various paving and planting methods used on slope surfaces to prevent erosion.

[0003] Slope treatment is an important issue in engineering development, operation and maintenance. my country has adopted a large number of hard revetments such as masonry blocks to resist the hydraulic erosion of waves and tides. Over time, the revetment will wear down, and in severe cases, large gaps will appear in the revetment, exposing the concrete, which seriously affects the service life of the breakwater or seawall internal structure.

[0004] Patent application number CN216379379U discloses a slope protection structure for polyurethane crushed stone repair. By laying a polyurethane crushed stone layer and a polyurethane crushed stone facing, the damaged slope can be quickly repaired, ensuring the stability of the slope. In addition, gabion mesh is set at the toe of the slope to reduce slope instability and enhance erosion resistance.

[0005] However, while direct laying can speed up the repair process, the repair layer is easily damaged again by the impact and erosion of ocean waves, resulting in economic losses. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this invention provides an emergency repair device and method for marine slope protection structures, solving the aforementioned problems.

[0008] (0) Technical solution

[0009] To achieve the above objectives, the present invention is implemented through the following technical solution: an emergency repair device and repair method for marine slope protection structures, including the internal structure of the seawall, a layer of boulders, a slope toe structure, a reinforced gabion, and gabion boulders;

[0010] The top of the internal structure of the seawall is covered with a crushed stone cushion layer, and a masonry layer is laid on the rubble layer. The rubble layer and the masonry layer constitute the internal repair structure of the slope protection. A filter layer is added between the crushed stone cushion layer and the rubble layer.

[0011] Preferably, a damaged area is provided on the crushed stone cushion layer, and a layer of rubble is laid in the damaged area. Medium-coarse sand is used to prepare the mortar, requiring a sand particle size of 0.15~5mm and a fineness modulus of 2.5~3.0. The mortar uses a 0.35m... 3The mortar is mixed on-site using a mortar mixer. During the mortar mixing process, the moisture content of the fine aggregate is kept stable. The amount of water is adjusted at any time according to the changes in the moisture content of the aggregate to ensure the accuracy of the water-cement ratio. The mortar is mixed evenly and has good workability. When mixing mortar with a mixer, the mixing time should not be less than 2 to 3 minutes.

[0012] Preferably, a polyurethane crushed stone layer is laid on the mortar-grouted stone layer to cover the damaged area. The mortar-grouted stone layer is generally constructed using rubble or pebbles. The minimum thickness of the stone should not be less than 2 / 3 of the thickness of the rubble slope protection. Before use, the surface of the stone should be washed to remove mud and rust impurities, and it should be moistened with water. When using the stone, the surface should be wet but not dry to ensure sufficient bonding strength between the mortar and the stone. The first layer of rubble stones in the slope toe tooth groove foundation should be laid with mortar, with the larger surface facing down. The pebbles should be laid in layers, with staggered joints and overlapping inside and outside. The mortar should be laid from bottom to top while the gravel filter pad is laid on the slope surface.

[0013] Preferably, a slope-foot anchor structure is embedded in the damaged area.

[0014] Preferably, the top of the slope toe structure is covered with polyurethane crushed stone cladding, and the four sides of the crushed stone cushion layer are covered with gabion blocks. The gabion blocks are wrapped with reinforced gabions, which are generally made of steel bars and fabricated in a steel bar factory or on-site according to design requirements, forming square or rectangular shapes with a length, width, and height of approximately 1.0~3.5m. To enhance the rigidity of the gabion frame, steel profiles are often used as the skeleton to form a steel frame gabion. Each side is fixed to the steel frame with a steel mesh spot welded on. After the top steel mesh is filled with stones, it is welded to the steel frame for sealing. All joints between steel frames are connected and welded together with joint plates. The perimeter ribs of the steel frame (straight bars use large angle steel, and the support bars (diagonal bars) use small angle steel). The steel mesh is generally made of 8mm round steel with a mesh size of 10cm×10cm.

[0015] Preferably, the slope toe structure includes a precast base plate, reinforcing ribs, insert rods, and an embedding mechanism. The precast base plate is embedded and installed inside the damaged area. Reinforcing ribs are evenly distributed on the top of the precast base plate. Insert rods are provided at the bottom of the precast base plate. An embedding mechanism is embedded and installed in the middle of the bottom of the precast base plate.

[0016] Preferably, the embedding mechanism includes a tube body, a rotating cap, a rotating rod, a screw, a movable seat, a swing arm, and a protruding rod. The tube body is embedded in the middle of the bottom of the precast base plate. The tube body is movably connected to the inner bottom of the rotating cap. The rotating cap is connected to the top of the rotating rod and the screw via a transmission connection. The screw is threaded into the middle of the movable seat. The movable seat is movably connected to the bottom of the swing arm. The swing arm is movably connected to the bottom of the protruding rod.

[0017] Preferably, the swing arms are provided in three sets, and each swing arm is provided with a protruding rod, the front end of which is pointed.

[0018] (III) Beneficial Effects

[0019] This invention provides an emergency repair device and method for marine slope protection structures. It offers the following advantages: By incorporating a slope toe support structure, a precast base plate is embedded in the damaged area and further embedded into the internal soil layer of the seawall using insert rods. The embedding mechanism extends further to ensure tight fit and positioning with the soil layer. Subsequently, a layer of rubble, masonry, and polyurethane crushed stone is laid. Reinforcing ribs enhance the stability and seismic resistance of these layers. Finally, a polyurethane crushed stone facing is applied to prevent further damage and minimize economic losses.

[0020] This invention provides an emergency repair device and method for marine slope protection structures. It offers the following advantages: By incorporating an embedding mechanism, the tube is embedded into the soil layer. Rotating the cap clockwise causes the cap to drive a screw through a rotating rod. The screw is threaded into the inner side of the movable seat, causing the movable seat to move upwards. This causes the swing arm copper plate to swing, opening the protruding rod and increasing the contact area with the soil layer, effectively preventing the precast base plate from loosening and further increasing the stability of the repair layer. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the crushed stone cushion layer in this invention;

[0024] Figure 4 This is a schematic diagram of the slope foot structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the second structural form of the slope foot anchor in this invention;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the embedding mechanism of the present invention;

[0027] Figure 7 This is a partial three-dimensional structural diagram of the embedding mechanism of the present invention.

[0028] In the diagram: 1. Internal structure of the seawall; 2. Crushed stone cushion layer; 3. Rockfill layer; 4. Filter layer; 5. Masonry layer; 6. Polyurethane crushed stone layer; 7. Slope toe structure; 8. Polyurethane crushed stone facing; 9. Reinforced gabion; 21. Damaged area; 61. Precast base plate; 62. Reinforcing rib; 63. Insert rod; 64. Embedding mechanism; 641. Pipe body; 642. Rotary cap; 643. Screw rod; 644. Movable seat; 645. Swing arm; 646. Protruding rod; 647. Reinforcing bar; 65. Binding line; 66. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1:

[0031] Please see Figure 1-3 This invention provides a technical solution for an emergency repair device and method for marine slope protection structures: The device and method include an internal structure 1 of a seawall, a riprap layer 3, a toe structure 6, a reinforced gabion 8, and gabion riprap 9. A crushed stone cushion layer 2 is laid on top of the internal structure 1, and a masonry layer 4 is laid on top of the riprap layer 3. A damaged area 21 is set on the crushed stone cushion layer 2, and the riprap layer 3 is laid within the damaged area 21. Medium-coarse sand is used to prepare the mortar, requiring a sand particle size of 0.15~5mm and a fineness modulus of 2.5~3.0. The mortar uses 0.35m... 3The mortar is mixed on-site using a mixer. During the mixing process, the moisture content of the fine aggregate is kept stable. The water content is adjusted according to changes in aggregate moisture content to ensure an accurate water-cement ratio. The mortar is mixed evenly and has good workability. When mixing mortar with a mixer, the mixing time should be no less than 2-3 minutes. A polyurethane crushed stone layer 5 is laid on top of the masonry layer 4 to cover the damaged area 21. The masonry layer 4 is generally constructed using rubble or pebbles. The minimum thickness of the stones should not be less than 2 / 3 of the thickness of the riprap slope protection. Before use, the stones should be washed to remove surface mud and rust impurities and moistened with water. The surface of the stones should be moist but not dry during use to ensure proper bonding between the mortar and the masonry. Sufficient bonding strength between stones. The first layer of rubble stones in the slope toe tooth groove foundation should be grouted with the larger surface facing down. The stones should be laid in layers, with staggered joints and overlapping inside and outside. The gravel filter layer is laid on the slope surface from bottom to top while the stones are being laid. The slope toe support structure 6 is embedded in the damaged area 21. The top of the slope toe support structure 6 is covered with polyurethane crushed stone facing 7. The four walls of the side ends of the crushed stone cushion layer 2 are covered with gabion stones 9. The outside of the gabion stones 9 is wrapped with a steel gabion 8. The steel gabion 8 is generally made of steel bars and is processed in the steel bar factory or on site according to the design requirements to be square or rectangular, with a length, width and height of about 1.0~3.5m. In order to strengthen the rigidity of the gabion frame, steel sections are often used as the skeleton to form a steel frame gabion. Each side is fixed to the steel frame by spot welding with steel mesh. After the top steel mesh is filled with stones, it is welded to the steel frame to seal it. All joints of the steel frame are connected by joint plates and welded into a whole. The steel frame perimeter ribs (straight bars use large angle steel, and the additional support bars (diagonal bars) use small angle steel; the steel mesh is generally made of 8mm round steel with a mesh size of 10cm×10cm.

[0032] Please see Figure 4 This invention provides a technical solution for an emergency repair device and repair method for marine slope protection structures: An emergency repair device and repair method for marine slope protection structures, wherein the slope toe structure 6 includes a precast base plate 61, reinforcing ribs 62, insert rods 63, and an embedding mechanism 64. The precast base plate 61 is embedded and installed inside the damaged area 21. Reinforcing ribs 62 are evenly distributed on the top of the precast base plate 61. Insert rods 63 are provided at the bottom of the precast base plate 61. An embedding mechanism 64 is embedded and installed in the middle of the bottom of the precast base plate 61.

[0033] Please see Figure 6-7This invention provides a technical solution for an emergency repair device and repair method for marine slope protection structures: An emergency repair device and repair method for marine slope protection structures, wherein the embedded mechanism 64 includes a tube body 641, a rotating cap 642, a rotating rod 643, a screw 644, a movable seat 645, a swing arm 646, and a protruding rod 647. The tube body 641 is embedded and installed in the middle of the bottom of the precast base plate 61. The tube body 641 is movably connected to the inner bottom of the rotating cap 642. The rotating cap 642 is connected to the top of the screw 644 via the rotating rod 643. The screw 644 is threadedly engaged with the middle of the movable seat 645. The movable seat 645 is movably connected to the bottom of the swing arm 646. The swing arm 646 is movably connected to the bottom of the protruding rod 647. There are three sets of swing arms 646, and each swing arm 646 is provided with a protruding rod 647. The front end of the protruding rod 647 is pointed.

[0034] Example 2:

[0035] Please see Figure 5 This invention provides a technical solution for an emergency repair device and repair method for marine slope protection structures: An emergency repair device and repair method for marine slope protection structures, wherein a precast base plate 61 is provided with a steel bar 65 on the top, and multiple sets of steel bar 65 are provided, and the steel bar 65 are arranged in a ring, and are tied with binding wire 66 to form a column-shaped steel bar column, which facilitates the increase of the strength of the filling material support and increases the filling stability of the rubble layer 3, the masonry layer 4, and the polyurethane crushed stone layer 5.

[0036] When repairs are needed:

[0037] Damaged area 21 is a depression on the slope of the crushed stone cushion layer 2. Before repair, the ground of damaged area 21 is widened to form a hexagonal opening, which facilitates the placement of the precast base plate 61 and further ensures the stability of the repair surface.

[0038] Then, the precast base plate 61 is embedded into the interior of the damaged area 21, so that the insertion rod 63 and the embedding mechanism 64 are embedded into the soil slope of the internal structure 1 of the seawall, so that the new and old slopes are in close contact, further ensuring the stability of the repair surface. After the pipe body 641 is embedded in the soil layer, the rotating cap 642 is rotated clockwise, so that the rotating cap 642 drives the screw 644 to rotate through the rotating rod 643. The screw 644 is threaded with the inner side of the movable seat 645, so that the movable seat 645 moves upward, driving the copper plate of the swing arm 646 to swing, opening the protruding rod 647, increasing the contact area with the soil layer, effectively preventing the precast base plate 61 from loosening, and further increasing the stability of the repair layer.

[0039] Next, lay the third layer of riprap, using medium-coarse sand mixed with mortar. The sand particle size should be 0.15~5mm, the fineness modulus should be 2.5~3.0, and the mortar should be 0.35m thick. 3The mortar is mixed on-site using a mortar mixer. During the mortar mixing process, the moisture content of the fine aggregate is kept stable. The amount of water is adjusted at any time according to the changes in the moisture content of the aggregate to ensure the accuracy of the water-cement ratio. The mortar is mixed evenly and has good workability. When mixing mortar with a mixer, the mixing time is not less than 2 to 3 minutes.

[0040] Next, the mortar-grouted masonry layer 4 is laid. The mortar-grouted masonry is constructed using rubble or pebbles. The minimum thickness of the stones should not be less than 2 / 3 of the thickness of the rubble slope protection. Before use, the surface of the stones should be washed to remove mud and rust, and then moistened with water. The surface of the stones should be wet but not dry during use to ensure sufficient bonding strength between the mortar and the stones. The first layer of rubble stones in the slope toe tooth groove foundation should be laid with mortar, with the larger surface facing down. The pebbles should be laid in layers, with staggered joints and overlapping inside and outside. The gravel filter pad layer is laid on the slope surface from bottom to top while the masonry is being constructed. The reinforcing bars 62 can increase the stability and seismic resistance of the rubble layer 3, the mortar-grouted masonry layer 4, and the polyurethane crushed stone layer 5.

[0041] Then, a polyurethane crushed stone layer 5 is laid. The polyurethane crushed stone is a polymer, which is a mixture of crushed stone and polyurethane in a certain proportion. After the polyurethane solidifies and hardens, it connects the loose crushed stone into a whole. The compressive strength is greater than 3.0 MPa, the tensile strength is greater than 0.5 MPa, and the flexural strength is greater than 3.0 MPa. The ratio of polyurethane to crushed stone is not less than 4% and not more than 9%.

[0042] Finally, the polyurethane crushed stone surface 7 is laid. Before laying the subbase, the polyurethane crushed stone layer 5 should be leveled and compacted. The thickness of the polyurethane crushed stone layer 5 should be uniform, and its density should be greater than 90%.

[0043] To ensure solid support for the damaged area 21 and the gravel cushion layer 2, all visible joints at the front and back should be tightly filled with small pieces of stone.

[0044] The gabion blocks 9 should be laid in layers on the four side walls of the crushed stone cushion layer 2. The gabion blocks 9 should be laid in a staggered manner and connected to each other using flexible connection measures. The steel gabions 8 on the left, right and up and down can be strung together and tied tightly with steel wire ropes inside and out. Each steel wire rope joint should use no less than 2 clips. The bottom layer of steel gabions 8 should be anchored with steel piles on the side of the crushed stone cushion layer 2 to reduce slope instability and enhance erosion resistance.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An emergency repair device for marine slope protection structures, characterized in that: Including the internal structure of the seawall (1), the boulders layer (3), the slope toe structure (6), the reinforced gabion (8), and the gabion boulders (9); The top of the internal structure (1) of the seawall is covered with a crushed stone cushion layer (2), and a masonry layer (4) is laid on the boulders layer (3). The boulders layer (3) and the masonry layer (4) constitute the internal repair structure of the slope protection. A filter layer (31) is added between the crushed stone cushion layer (2) and the boulders layer (3). The top of the slope toe structure (6) is covered with a polyurethane crushed stone facing (7). The four walls of the side ends of the crushed stone cushion layer (2) are covered with gabion blocks (9). The gabion blocks (9) are wrapped with reinforced gabions (8). The crushed stone cushion layer (2) is provided with a damaged area (21), and a layer of boulders (3) is laid in the damaged area (21). The damaged area (21) is a notch on the upper slope of the crushed stone cushion layer (2). Before repair, the ground of the damaged area (21) is widened so that the damaged area (21) forms a hexagonal opening. A polyurethane crushed stone layer (5) is laid on the masonry layer (4) to cover the damaged area (21); a slope toe structure (6) is embedded in the damaged area (21). The slope toe structure (6) includes a precast base plate (61), reinforcing ribs (62), insert rods (63), and an embedding mechanism (64). The precast base plate (61) is embedded and installed inside the damaged area (21). The top of the precast base plate (61) is equidistantly distributed with reinforcing ribs (62). The bottom of the precast base plate (61) is provided with insert rods (63). The embedding mechanism (64) is embedded and installed in the middle of the bottom of the precast base plate (61). The embedding mechanism (64) includes a tube body (641), a rotating cap (642), a rotating rod (643), a screw (644), a movable seat (645), a swing arm (646), and a protruding rod (647). The tube body (641) is embedded in the middle of the bottom of the precast base plate (61). The tube body (641) is movably connected to the inner bottom of the rotating cap (642). The rotating cap (642) is connected to the top of the screw (644) by the rotating rod (643). The screw (644) is threaded to the middle of the movable seat (645). The movable seat (645) is movably connected to the bottom of the swing arm (646). The swing arm (646) is movably connected to the bottom of the protruding rod (647).

2. The emergency repair device for marine slope protection structures according to claim 1, characterized in that: The swing arm (646) is provided in three sets, and each swing arm (646) is provided with a protruding rod (647), the front end of which is pointed.

3. A repair method for an emergency repair device for marine slope protection structures, using the emergency repair device for marine slope protection structures as described in any one of claims 1-2, the repair method being as follows: Step S1: The damaged area (21) is a notch on the slope of the crushed stone cushion layer (2). Before repair, the ground of the damaged area (21) is widened so that the damaged area (21) forms a hexagonal opening, which facilitates the placement of the precast base plate (61) and further ensures the stability of the repair surface. Step S2: Embed the precast base plate (61) into the interior of the damaged area (21), so that the insert rod (63) and the embedding mechanism (64) are embedded in the soil slope of the internal structure (1) of the seawall, so that the new and old slopes are in close contact, further ensuring the stability of the repair surface; Step S3: Then lay the upper layer of rubble (3), and use medium-coarse sand to mix the mortar. The sand particle size should be 0.15~5mm, the fineness modulus should be 2.5~3.0, and the mortar should be 0.35m 3 Mortar is mixed on-site using a mortar mixer; Step S4: Next, lay the upper mortar masonry layer (4). The mortar masonry is constructed using rubble or pebbles. The minimum thickness of the stone should not be less than 2 / 3 of the thickness of the rubble slope protection. Before using the stone, the surface soil and water rust impurities should be washed off and the stone should be moistened with water. When using the stone, the surface should be wet but not dry to ensure that there is sufficient bonding strength between the mortar and the stone. Step: S5: Then lay the polyurethane crushed stone layer (5). Polyurethane crushed stone is a polymer, which is a mixture of crushed stone and polyurethane in a certain proportion. After the polyurethane is solidified and hardened, it will connect the loose crushed stone into a whole. Step S6: Finally, for the polyurethane crushed stone surface (7), before laying the subbase, the polyurethane crushed stone layer (5) should be flat and compacted. The thickness of the polyurethane crushed stone layer (5) should be uniform, and its density should be greater than 90%. To provide solid support for the damaged area (21) and the gravel cushion layer (2), all front and rear exposed joints are filled tightly with small pieces of stone.

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