Geotextile tube bag curing process for ecological desilting in lake area

Abstract

The invention discloses a geotextile tube bag curing process for lake area ecological desilting and relates to the technical field of lake area desilting, the geotextile tube bag curing process has the advantages of automatically laying geotextile tube bags and reducing manual laying, and the technical scheme is characterized in that S1, early-stage preparation is conducted, specifically, before the geotextile tube bags are laid, a construction site needs to be cleaned, and before the geotextile tube bags are laid, the construction site needs to be cleaned; the ground is ensured to be flat without sharp objects; according to a design drawing and actual conditions, the position and the length of the geotextile tube bag are determined through paying off, and white powder or a marker line is used for marking the position and the length on the ground; s2, geotextile tube bags are laid, specifically, the geotextile tube bags are laid through an automatic laying device, and when the adjacent geotextile tube bags are laid, the adjacent geotextile tube bags need to be stacked by 30 cm; s4, the geotextile tube bags are subjected to hydraulic reclamation; and S5, dewatering the geotextile tube bag: discharging the water flow by utilizing meshes of the geotextile tube bag and filling pressure in the bag, and gradually solidifying after the geotextile tube bag is filled with the sludge intercepted in the geotextile tube bag.

Description

Technical Field

[0001] This invention relates to the field of lake dredging technology, specifically to a geotextile bag solidification process for ecological dredging of lakes. Background Technology

[0002] Geotextile bag solidification technology is a treatment method that involves mixing silt with a solidifying agent (dehydrating aid), filling the mixture into geotextile bags, and then dehydrating and solidifying it. It has advantages such as simple operation, easy relocation, and good solidification effect, making it a new type of ecological dredging and environmentally friendly solidification treatment method for lake areas.

[0003] The geotextile bag curing process requires filling: mud and water are added into the geotextile bag.

[0004] However, geotextile bags need to be laid before filling, and currently, laying geotextile bags requires multiple people to do it, which affects the laying efficiency.

[0005] Therefore, the applicant has developed a new technical solution in the actual production process to solve the above-mentioned technical problems. Summary of the Invention

[0006] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a geotextile bag solidification process for ecological dredging in lake areas, which has the advantages of automatic laying of geotextile bags and reduced manual laying.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This invention provides a geotextile bag solidification process for ecological dredging in lake areas, comprising the following steps: S1. Preliminary preparation: Before laying geotextile bags, the construction site needs to be cleaned to ensure that the ground is flat and free of sharp objects; Laying out lines: According to the design drawings and actual conditions, the position and length of the geotextile bags are determined by laying out lines and marked on the ground with white powder or marker lines. S2, Geotextile bag laying: Geotextile bags are laid using an automatic laying device. When laying adjacent geotextile bags, they need to be overlapped by 30cm. S3, Geotextile bag fixing: After the geotextile bag is laid, anchor rings are set at the four corners of the geotextile bag. U-shaped nails are inserted into the ground through the anchor rings to fix the geotextile bag. S4, geotextile tube filling; S5, geotextile bag dewatering: Water is discharged by utilizing the mesh of the geotextile bag and the filling pressure inside the bag, and the silt trapped inside the geotextile bag gradually solidifies after filling. S6, Post-processing: After solidification, the solidified soil is transported to the spoil disposal area, and acceptance and recording are carried out.

[0008] By adopting the above technical solution, an automatic laying device is used to lay geotextile bags, reducing manual laying and improving laying efficiency. When laying adjacent geotextile bags, they need to be overlapped by 30cm. The purpose is to reduce the through gaps that appear between adjacent geotextile bags when the filling height of the geotextile bags increases later. After laying a geotextile bag, U-shaped nails can be inserted into the ground, and then the geotextile bag can be tightly attached to the ground by anchoring rings to reduce movement. Then, the geotextile bags are blown in and dehydrated and cured. After curing, the geotextile bags are cut open with a knife to facilitate the transportation of cured soil to the spoil disposal area.

[0009] Preferably, in step S4, the geotextile bag filling includes constantly monitoring the position of the geotextile bag when filling the first geotextile bag. When a slippage trend occurs, wooden stakes are driven into the slippage side for stabilization. At the same time, the filling sleeve of the geotextile bag is immediately adjusted to fill in the opposite direction of the slippage trend, or the filling of the geotextile bag is stopped, and the adjacent geotextile bags of the slipping geotextile bag are filled to form a sandwich stabilizing situation. After the geotextile bag is filled, the filling sleeve must be tied.

[0010] Preferably, a height-limiting bar is set up on site for filling geotextile tubes. The lower end of the height-limiting bar is fixed to the ground to control the filling height of the geotextile tubes. If the ideal height is not reached in one attempt, the geotextile tubes are filled a second or multiple times after they have slightly solidified until the ideal filling degree is reached.

[0011] Preferably, the anchoring ring is a cloth ring and is located more than 30cm away from the edge of the geotextile bag.

[0012] Preferably, after the geotextile bags are hoisted to the laying site, care should be taken when cutting the straps and outer packaging to avoid cutting the bag with sharp knives. Do not use sharp knives or utility knives to cut or peel off the packaging of the geotextile bags. Do not cut or puncture the surface of the geotextile bags when removing the packaging. After removing the outer packaging of the geotextile bags, the geotextile bags should be laid out by the automatic laying device according to the position line. Geotextile tubes are rolls of material wound around a steel shaft.

[0013] Preferably, one side of the geotextile bag is laid on the ground from the roll layer to form an unfolded part. The automatic laying device includes a horizontal plate located on the upper surface of the unfolded part. The lower end of the horizontal plate is provided with several rollers that roll in contact with the upper surface of the unfolded part. The horizontal plate is distributed parallel to the length direction of the steel shaft. The horizontal plate is provided with a pusher to push the roll layer forward.

[0014] Preferably, the pushing component includes fixed plates slidably connected to both ends of the horizontal plate, and sleeves sleeved on both ends of the steel shaft are rotatably connected to both fixed plates. Pressure plates are coaxially fixed on the outer walls of the ends of the two sleeves away from the fixed plates. The two pressure plates are respectively pressed on both sides of the length direction of the roll layer. The fixed plate is provided with a motor for driving the sleeves to rotate, and the horizontal plate is provided with a power component for driving the fixed plate to move.

[0015] Preferably, the power component includes sliding grooves formed at both ends of the horizontal plate, the groove openings of which are distributed towards the rolled layer, and lead screws rotatably connected to the opposite groove walls of the sliding grooves. Handwheels for driving the corresponding lead screws to rotate are provided on both ends of the horizontal plate. A slider is slidably connected inside the sliding groove, and the lead screw passes through the slider and is threadedly connected to the slider. One end of the fixing plate is fixed to the slider.

[0016] Preferably, each of the pressure plates has a rubber pad on the side facing the roll layer that abuts against the roll layer.

[0017] Preferably, one end of the lead screw extends out of the end of the cross plate and is coaxially fixedly connected to the handwheel, and a locking nut is threaded onto the extended outer wall of the lead screw.

[0018] The beneficial effects of this invention are as follows: The use of an automatic laying device for geotextile bags reduces manual laying and improves laying efficiency. When laying adjacent geotextile bags, a 30cm overlap is required between them. This is to reduce the through gaps that appear between adjacent geotextile bags as the filling height increases. After laying one geotextile bag, U-shaped nails can be inserted into the ground, and then the geotextile bag can be tightly attached to the ground by anchoring rings to reduce movement. Subsequently, the geotextile bags are blown in and dehydrated to solidify. After solidification, the geotextile bags are cut open with a knife to facilitate the transport of solidified soil to the spoil disposal area. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this embodiment; Figure 2 This is a structural schematic diagram illustrating the geotextile bag before it is fully deployed in this embodiment. Figure 3 This is a structural schematic diagram illustrating the automatic laying device in this embodiment; Figure 4 This is a structural schematic diagram illustrating the fixing plate in this embodiment; Figure 5 This is a schematic diagram illustrating the structure of the concealed sleeve and motor in this embodiment; Figure 6 This is a schematic diagram illustrating the structure of the chute in this embodiment; Figure 7 This is a structural schematic diagram illustrating the anchoring ring in this embodiment.

[0021] Explanation of reference numerals in the attached figures: In the diagram: 1. Geotextile tube; 11. Anchoring ring; 12. Steel shaft; 13. Rolled layer; 14. Horizontal plate; 141. Roller; 142. Fixing plate; 143. Sleeve; 144. Pressure plate; 145. Electric motor; 15. Slide groove; 151. Lead screw; 152. Handwheel; 153. Sliding block. Detailed Implementation

[0022] 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.

[0023] A geotextile bag solidification process for ecological dredging in lake areas, such as Figure 1 and Figure 7 This includes the following steps: S1. Preliminary preparation: Before laying geotextile tube 1, the construction site needs to be cleaned to ensure that the ground is flat and free of sharp objects; Layout: According to the design drawings and actual conditions, the position and length of geotextile tube 1 are determined by laying out lines and marked on the ground with white powder or marking lines. S2, laying of geotextile tube 1: geotextile tube 1 is laid using an automatic laying device. When laying adjacent geotextile tube 1, they need to overlap each other by 30cm. S3, fixing geotextile tube 1: After the geotextile tube 1 is laid, anchoring rings 11 are set at the four corners of the geotextile tube 1. U-shaped nails are inserted into the ground through the anchoring rings 11 to fix the geotextile tube 1 before blowing. The anchoring rings 11 are made of cloth and are easy to flatten. S4, geotextile tube 1 hydraulic filling; S5, Dewatering of geotextile bag 1: Water is discharged by utilizing the mesh of geotextile bag 1 and the filling pressure inside the bag, and the silt trapped inside geotextile bag 1 gradually solidifies after filling. S6, Post-processing: After solidification, the solidified soil is transported to the spoil disposal area, and acceptance and recording are carried out.

[0024] like Figure 1 An automatic laying device is used to lay the geotextile tubes 1, reducing manual laying and improving laying efficiency. When laying adjacent geotextile tubes 1, they need to be overlapped by 30cm. The purpose is to reduce the through gaps between adjacent geotextile tubes 1 when the filling height of geotextile tubes 1 increases later. After laying a geotextile tube 1, U-shaped nails can be inserted into the ground, and then the geotextile tube 1 can be tightly attached to the ground by anchoring rings 11 to reduce movement. Then, the geotextile tubes 1 are blow-filled and dehydrated and cured. After curing, the geotextile tubes 1 are cut open with a knife to facilitate the transportation of cured soil to the spoil disposal area.

[0025] like Figure 1 In step S4, the filling of geotextile tube 1 includes paying close attention to the position of geotextile tube 1 when filling the first geotextile tube 1. When a slippage trend occurs, wooden stakes are driven into the slippage side for stabilization. At the same time, the filling sleeve of geotextile tube 1 is adjusted immediately. The filling sleeve is the inlet for filling mud and water into geotextile tube 1. Filling is done in the opposite direction of the slippage trend, or the filling of geotextile tube 1 is stopped and the adjacent geotextile tube 1 of the slippage geotextile tube 1 is filled to form a sandwich stabilizing situation. After the geotextile tube 1 is filled, the filling sleeve must be tied.

[0026] After each geotextile bag 1 has been laid in the designated area on the ground, drainage ditches are dug around the area where the geotextile bags 1 are laid. The drainage ditches discharge the water discharged from each geotextile bag 1 into a sedimentation tank for recycling.

[0027] A height-limiting rod is installed on-site to control the filling height of the geotextile tube 1. The lower end of the height-limiting rod is fixed to the ground to control the filling height of the geotextile tube 1. If the ideal height is not reached in one attempt, the geotextile tube 1 is filled a second or multiple times after it has slightly solidified. Generally, the U-shaped nail can be removed after one filling, and then multiple fillings can be performed until the ideal filling degree is achieved. When filling the geotextile tube 1 near the drainage ditch, the lower end of the height-limiting rod is inserted into the ground near the drainage ditch. When filling the geotextile tube 1 inside the filling area, one end of the height-limiting rod can be placed horizontally on the adjacent already filled geotextile tube 1, and the other end can be placed on the unfilled geotextile tube 1. When the height-limiting rod is horizontal, it indicates that the geotextile tube 1 is filled in place.

[0028] After the geotextile bag 1 is hoisted to the laying site, care should be taken when cutting the straps and outer packaging to avoid cutting the bag with sharp knives. Do not use sharp knives or utility knives to cut or peel off the packaging of the geotextile bag 1. Do not cut or puncture the surface of the geotextile bag 1 when removing the packaging. After removing the outer packaging of the geotextile bag 1, the geotextile bag 1 should be laid out by the automatic laying device according to the position line. like Figure 2 and Figure 3 and Figure 4 The geotextile tube 1 is a roll 13 wound around a steel shaft 12. That is, a geotextile tube 1 is wound around a steel shaft 12 for transportation and placement. When it is necessary to unroll the geotextile tube 1, an automatic laying device is required.

[0029] like Figure 2 and Figure 3 and Figure 4 A roll of geotextile tube 1 is placed on the laying site, so that one side of the geotextile tube 1 is laid on the ground from the roll layer 13 to form an unfolded part. The automatic laying device includes a horizontal plate 14 located on the upper end face of the unfolded part. The lower end of the horizontal plate 14 is provided with several rollers 141 that roll in contact with the upper end face of the unfolded part. Each roller 141 is distributed along the length direction of the horizontal plate 14, and each roller 141 creates a gap between the horizontal plate 14 and the unfolded geotextile tube 1. The horizontal plate 14 is distributed parallel to the length direction of the steel shaft 12, and the horizontal plate 14 is provided with a pusher to push the roll layer 13 forward.

[0030] like Figure 2 and Figure 3 and Figure 4 The pushing component includes fixed plates 142 that are slidably connected to both ends of the horizontal plate 14. The sliding direction of the fixed plates 142 is along the length direction of the horizontal plate 14. Sleeves 143 that are sleeved on both ends of the steel shaft 12 are rotatably connected to both fixed plates 142. Pressure plates 144 are coaxially fixed on the outer wall of the end of the two sleeves 143 away from the fixed plates 142. The two pressure plates 144 press against both sides of the roll layer 13 along the length direction. When the pressure plates 144 abut against the roll layer 13, there is a gap between the two ends of the steel shaft 12 and the bottom of the sleeve 143, so that the steel shaft 12 does not affect the rotation of the sleeve 143. The fixed plates 142 are provided with motors 145 that drive the sleeves 143 to rotate, and the horizontal plate 14 is provided with power components that drive the fixed plates 142 to move.

[0031] like Figure 4 and Figure 5 and Figure 6 The power component includes grooves 15 at both ends of the horizontal plate 14. The longitudinal section of the grooves 15 is a T-shape rotated 90°. The groove openings of the grooves 15 face the rolled layer 13. A lead screw 151 is rotatably connected to the opposite groove wall of the grooves 15. Handwheels 152 that drive the corresponding lead screws 151 to rotate are provided on both ends of the horizontal plate 14. A slider 153 is slidably connected inside the grooves 15. The longitudinal section of the slider 153 is a T-shape rotated 90° to match the grooves 15. The lead screw 151 passes through the slider 153 and is threadedly connected to the slider 153. One end of the fixing plate 142 is fixed to the slider 153. The vertical part of the T-shaped slider 153 is inside the grooves 15, and the horizontal part is connected to the fixing plate 142.

[0032] like Figure 4 and Figure 5 and Figure 6 Each pressure plate 144 has a rubber pad (not shown in the figure) on the side facing the roll layer 13, which abuts against the roll layer 13, increasing the friction between the pressure plate 144 and the roll layer 13, so that the pressure plate 144 presses the roll layer 13 firmly.

[0033] like Figure 4 and Figure 5 and Figure 6 One end of the lead screw 151 extends out of the end of the horizontal plate 14 and is coaxially fixedly connected to the handwheel 152. This facilitates the handwheel 152 to drive the lead screw 151 to rotate. A locking nut (not shown in the figure) is threaded onto the extended outer wall of the lead screw 151. When the handwheel 152 rotates the lead screw 151, there is a gap between the locking nut and the end face of the horizontal plate 14. After the handwheel 152 rotates the lead screw 151 to the position, the locking nut is rotated, causing the locking nut to slide on the lead screw 151, thereby causing one side of the locking nut to abut against the end face of the horizontal plate 14, thus restricting the rotation of the lead screw 151.

[0034] The working process of the automatic laying device: The first step is to place a roll of geotextile bag 1 on the laying site, so that one side of the geotextile bag 1 is wrapped down from the roll layer 13 and laid on the ground to form an unfolded part. The second step is to push the horizontal plate 14 onto the unfolded part, so that the roller 141 moves on the unfolded part. Rotate the handwheel 152 to make the slider 153 slide in the slide groove 15, thereby making the two sleeves 143 move towards the two ends of the steel shaft 12 respectively, until the two ends of the steel shaft 12 enter the two sleeves 143 respectively, and the pressure plates 144 on the two sleeves 143 press tightly against the two ends of the roll layer 13 respectively. The third step is to rotate the locking nut so that one side of the locking nut abuts against the end face of the horizontal plate 14, further restricting the rotation of the screw 151. Then, turn on the two motors 145 so that the two motors 145 start driving the two sleeves 143 to rotate at the same speed. This causes the two pressure plates 144 to drive the roll layer 13 to rotate away from the unfolded part, so that the geotextile bags 1 on the roll layer 13 unfold onto the ground in sequence. At this time, the rollers 141 move on the unfolded part as the roll layer 13 rotates, limiting the unfolded part. In the fourth step, after the diameter of the roll-shaped layer 13 is smaller than the diameter of the pressure plate 144, the motor 145 continues to drive the pressure plate 144 to rotate, so that the pressure plate 144 contacts the ground. As a new wheel, the pressure plate 144 drives the roll-shaped layer 13 to continue to unwind, thereby realizing the automatic laying of the geotextile bag 1.

[0035] Even when the roll layer 13 is elliptical, this automatic laying device can still be used.

[0036] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A geotextile bag solidification process for ecological dredging in lake areas, characterized in that, Includes the following steps: S1, Preliminary preparation: Before laying the geotextile bags (1), the construction site needs to be cleaned to ensure that the ground is flat and free of sharp objects; Layout: Based on the design drawings and actual conditions, determine the position and length of the geotextile bag (1) by laying out the lines, and mark it on the ground with white powder or marker lines; S2, Geotextile tube (1) laying: The geotextile tube (1) is laid using an automatic laying device. When laying adjacent geotextile tubes (1), they need to overlap each other by 30cm. S3, Geotextile tube bag (1) fixing: After the laying is completed, anchor rings (11) are set at the four corners of the geotextile tube bag (1). U-shaped nails are inserted into the ground through the anchor rings (11) to fix the geotextile tube bag (1); S4, geotextile tube (1) hydraulic filling; S5, Dewatering of geotextile tube (1): Water is discharged by utilizing the mesh of geotextile tube (1) and the filling pressure inside the bag, and the silt trapped inside the geotextile tube (1) gradually solidifies after filling. S6, Post-processing: After solidification, the solidified soil is transported to the spoil disposal area, and acceptance and recording are carried out.

2. The geotextile bag solidification process for ecological dredging of lake areas as described in claim 1, characterized in that, In step S4, the filling of geotextile tubes (1) includes paying close attention to the position of geotextile tubes (1) when filling the first geotextile tube (1). When a slippage trend occurs, wooden piles are driven on the slippage side for stabilization. At the same time, the filling sleeve of the geotextile tube (1) is adjusted immediately, and filling is carried out in the opposite direction of the slippage trend, or the filling of the geotextile tube (1) is stopped. The adjacent geotextile tubes (1) of the slippage geotextile tube (1) are filled to form a sandwich stabilization. After the geotextile tubes (1) are filled, the filling sleeves must be tied.

3. The geotextile bag solidification process for ecological dredging of lake areas as described in claim 2, characterized in that, A height limit bar is set up on site for filling geotextile tubes (1). The lower end of the height limit bar is fixed on the ground to control the filling height of geotextile tubes (1). If the ideal height is not reached in one go, the geotextile tubes (1) are filled a second or multiple times after they have been slightly consolidated until the ideal filling degree is reached.

4. The geotextile bag solidification process for ecological dredging of lake areas as described in claim 1, characterized in that, The anchoring ring (11) is a cloth ring and is located more than 30cm away from the edge of the geotextile bag (1).

5. The geotextile bag solidification process for ecological dredging of lake areas as described in claim 1, characterized in that, After the geotextile tube bag (1) is hoisted to the laying site, care should be taken when cutting the straps and outer packaging to avoid cutting the bag with sharp knives. Do not use sharp knives or paper cutters to cut and peel off the packaging of the geotextile tube bag (1). Do not cut or puncture the surface of the geotextile tube bag (1) when removing the packaging. After removing the outer packaging of the geotextile tube bag (1), the geotextile tube bag (1) should be laid by the automatic laying device according to the position line. The geotextile tube (1) is a roll (13) wound around a steel shaft (12).

6. The geotextile bag solidification process for ecological dredging of lake areas as described in claim 5, characterized in that, One side of the geotextile tube (1) is laid on the ground from the roll layer (13) to form an unfolded part. The automatic laying device includes a horizontal plate (14) located on the upper end of the unfolded part. The lower end of the horizontal plate (14) is provided with several rollers (141) that roll in contact with the upper end of the unfolded part. The horizontal plate (14) is distributed parallel to the length direction of the steel shaft (12). The horizontal plate (14) is provided with a pusher to push the roll layer (13) forward.

7. The geotextile bag solidification process for ecological dredging of lake areas as described in claim 6, characterized in that, The pushing component includes a fixed plate (142) slidably connected to both ends of the horizontal plate (14). Each of the two fixed plates (142) is rotatably connected to a sleeve (143) sleeved on both ends of the steel shaft (12). Each of the two sleeves (143) has a pressure plate (144) coaxially fixed on the outer wall of the end away from the fixed plate (142). The two pressure plates (144) are respectively pressed on both sides of the length direction of the roll layer (13). The fixed plate (142) is provided with a motor (145) for driving the sleeve (143) to rotate. The horizontal plate (14) is provided with a power component for driving the fixed plate (142) to move.

8. The geotextile bag solidification process for ecological dredging of lake areas as described in claim 7, characterized in that, The power component includes grooves (15) formed at both ends of the horizontal plate (14), with the groove openings of the grooves (15) facing the rolled layer (13). A lead screw (151) is rotatably connected to the opposite groove wall of the groove (15). A handwheel (152) is provided on both ends of the horizontal plate (14) to drive the corresponding lead screw (151) to rotate. A slider (153) is slidably connected in the groove (15). The lead screw (151) passes through the slider (153) and is threadedly connected to the slider (153). One end of the fixing plate (142) is fixed on the slider (153).

9. The geotextile bag solidification process for ecological dredging of lake areas as described in claim 8, characterized in that, Each of the pressure plates (144) has a rubber pad on the side facing the roll layer (13) that abuts against the roll layer (13).

10. The geotextile bag solidification process for ecological dredging of lake areas as described in claim 8, characterized in that, One end of the lead screw (151) extends out of the end of the cross plate (14) and is coaxially fixedly connected to the handwheel (152). A locking nut is threaded onto the extended outer wall of the lead screw (151).

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