Automatically-closed and easily-spliced geotextile tube bag for sand blocking guide dike base

Abstract

The utility model relates to an automatically closed and easily spliced geotextile tube bag for a sand-blocking guide embankment base, which comprises a bag body, the bag body comprises two pieces of composite cloth, four edges of the two pieces of composite cloth are sewn, and a filling opening is formed in the center of the composite cloth on one side of the bag body and is in a seam shape; the two sides of the filling opening are each provided with a spring piece metal strip, and the spring piece metal strips are made of memory metal and used for controlling the filling opening to be closed. The filling device has the advantages that the filling opening is controlled through the spring piece metal strip made of memory metal, rapid closing of the filling opening is achieved through the high-elasticity characteristic of the spring piece metal strip, automation of the construction process is achieved, and construction efficiency and safety are improved; the problems of low sealing efficiency and easy loosening are solved, meanwhile, the pull ropes are arranged at the two ends of the filling opening, and the problems of loosening, toppling and sliding of the sealing opening are solved through double fixation of the pull ropes, the spring pieces and the metal strips.

Description

Technical Field

[0001] The utility model relates to the technical field of geotube bags, in particular to an automatically closed and easily spliced ​​geotube bag for the base of a sand-trapping embankment. Background Art

[0002] In the fields of water conservancy projects, coastal protection, river regulation, etc., geotube bags are widely used as an important building material in embankment slope protection, revetment, foundation reinforcement and other projects. Geotube bags are filled with soil, sand and gravel to form a stable structure, which can effectively resist the influence of natural forces such as water scouring and wave erosion. However, with the expansion of project scale and the improvement of construction efficiency requirements, the design and construction methods of traditional geotube bags have gradually exposed some problems.

[0003] As a key pre-structure of port hydraulic structures, the guide dike plays a vital role in the field of port construction. The guide dike has the performance of resisting wave scouring, resisting wave erosion and ensuring the stability of the water body. Therefore, its quality standards are more stringent than those of ordinary hydraulic structures, and foundation treatment measures such as geotube bottom reinforcement must be implemented. In order to improve construction efficiency and speed up construction, the convenience and stability of geotube materials are particularly critical.

[0004] In water conservancy projects, the design of the dike usually needs to comprehensively consider factors such as water level, waves, and silt deposition to ensure its long-term stability. Geotube bags refer to bags formed by filling with soil, sand and other fillers. Geotube bags are also a new building material that can be widely used in river, lake, and sea embankment slope protection, bank protection and other protective projects, as well as for house foundation reinforcement, roadbed reinforcement, retaining wall and embankment construction, etc., which is economical and environmentally friendly.

[0005] The geotube bags in the prior art have the following shortcomings:

[0006] 1) Low sealing efficiency and easy to loosen: Traditional geotextile tube bags rely on sewing to seal, which has low construction efficiency and the seams are easy to loosen, causing material leakage and affecting project stability; although the existing metal fasteners are high in strength, they are expensive and complex to install, making it difficult to meet the needs of large-scale construction.

[0007] 2) Splicing is cumbersome and inefficient: In large-scale projects, the splicing between geotube bags is too cumbersome. The existing metal fasteners have poor size adaptability, resulting in low construction efficiency. The traditional splicing method relies on manual operation and is difficult to adapt to the requirements of rapid construction.

[0008] 3) Loose seal leads to reduced foundation strength: The traditional knot tying method can easily cause the geotube bag to be damaged due to loose seal, thereby reducing the foundation strength and stability, which has a significant adverse impact on the actual project.

[0009] 4) Geotube bags are prone to tipping and sliding: The traditional paving method can easily cause geotube bags to tip over and slide, which can have a serious adverse effect on the stability of the slope.

[0010] 5) Poor adaptability: The design of existing geotube bags is difficult to adapt to the needs of different engineering environments, especially in complex terrain or harsh climatic conditions, which significantly increases the construction difficulty and cost. Utility Model Content

[0011] The utility model aims to overcome the deficiencies in the prior art and provide a geotextile tube bag for the base of a sand-trapping embankment which is automatically closed and easy to splice.

[0012] The automatically closed and easily spliced ​​geotextile tube bag for the base of a sand-trapping embankment comprises: a bag body, the bag body comprising two composite fabrics, the four sides of the two composite fabrics being sewn together, a filling port being in the shape of a seam and opened in the center of the composite fabric on one side of the bag body;

[0013] A spring metal strip is provided on each side of the filling port. The spring metal strip is a memory metal and is used to control the closing of the filling port. A spring strip pin hole is provided at the end of the spring metal strip. The spring strip pin holes at the ends of the two spring metal strips are staggered and penetrated with spring strip pins to form a hinge structure.

[0014] Preferably, the spring sheet metal strip is initially in a long strip-shaped plane.

[0015] Preferably, a spring strip hole is provided at the end of the spring strip metal strip, and a pull rope is passed through the spring strip holes where two spring strip metal strips are attached.

[0016] Preferably, the two drawstrings at the same end of the two spring sheet metal strips are knotted and fixed.

[0017] Preferably, a composite cloth reinforcement ring is provided on the composite cloth around the filling port.

[0018] Preferably, drawstrings are provided at the four corners of the bag body, and adjacent bag bodies are connected by the drawstrings.

[0019] Preferably, flanges are provided on both sides of the filling port, a through hole is formed between the flange and the composite cloth, and the spring sheet metal strip is passed through the through hole.

[0020] The beneficial effects of the utility model are:

[0021] 1) The utility model controls the filling port through a spring sheet metal strip made of memory metal, and realizes rapid closure of the filling port through its high elasticity, thereby realizing automation of the construction process and improving construction efficiency and safety; it solves the problems of low sealing efficiency and easy loosening. At the same time, pull ropes are arranged at both ends of the filling port, and the problems of loose sealing and tipping and slipping are solved through dual fixation of the pull rope and the spring sheet metal strip. In addition, the spring sheet metal strip and pull rope system has low cost and high strength, which solves the problems of high material cost and complex construction.

[0022] 2) The utility model is provided with a composite cloth reinforcement ring around the filling port to prevent the opening from deforming during filling, and is also beneficial to avoid the problem of stress concentration at the end of the filling port causing the bag to tear. Combined with the spring sheet metal strip and the drawstring system, a triple protection is formed to ensure that there is no leakage of materials.

[0023] 3) The utility model realizes the rapid splicing of geotube bags through the draw rope system. The bottom draw rope is cross-tied with the top draw rope of the adjacent tube bag to form a stable mesh fixing system, which can fix the nodes of each geotube bag arrangement and combination, improves the portability and efficiency of the construction, and solves the problem of cumbersome and inefficient splicing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of a new type of geotube bag;

[0025] Figure 2 This is a structural diagram of a spring sheet metal strip inserted into a flange;

[0026] Figure 3 It is a cross-sectional view of the connection between two spring sheet metal strips;

[0027] Figure 4 A side view of the spring sheet metal strip connection;

[0028] Figure 5 This is a diagram of the pull rope connection at the interface of the spring sheet metal strip;

[0029] Figure 6 This is the connection diagram of the draw ropes between geotube bags.

[0030] Explanation of the reference numerals: bag body 1, through hole 2, filling port 3, composite cloth 4, four-side stitching lines 5, flange 6, spring sheet metal strip 7, drawstring 8, bag corner stitching line 9, spring sheet strip small hole 10, spring sheet strip pin 11, spring sheet strip pin hole 12, composite cloth reinforcement ring 14. DETAILED DESCRIPTION

[0031] The utility model is further described below in conjunction with the embodiments. The description of the following embodiments is only used to help understand the utility model. It should be pointed out that for ordinary people in this technical field, the utility model can also be modified in some ways without departing from the principle of the utility model, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

[0032] As an example, Figure 1 , Figure 3 and Figure 4 As shown, this automatically closed and easily spliced ​​geotube bag for the base of a sand-trapping embankment comprises a bag body 1, wherein the bag body 1 comprises two composite cloths 4, and the four sides of the two composite cloths 4 are fixed by double-layer sewing to form a closed structure.

[0033] A filling port 3 is provided in the center of the composite cloth 4 on one side of the bag body 1. In this embodiment, the filling port 3 is in the shape of a slit, that is, both sides of the filling port 3 are straight lines. A flange 6 is sewn around the filling port 3, and each flange 6 and the corresponding composite cloth 4 form a through hole 2. A spring sheet metal strip 7 is provided in the two through holes 2 on both sides of the filling port 3. After being placed, the flange 6 and the filling port 3 are sewn to fix the position of the spring sheet metal strip 7.

[0034] The length of the seam is consistent with the length of the spring metal strip 7. The spring metal strip 7 is a memory metal, and the initial state of the spring metal strip 7 is a long strip plane, which must be stretched open when in use. When the filling material is finished and no external force is applied, the two spring metal strips 7 automatically fit together to close the filling port 3, greatly reducing the time for soil filling and sewing the filling port 3.

[0035] The ends of the two spring sheet metal strips 7 are rotatably connected via a spring sheet strip latch 11 .

[0036] like Figure 3 and Figure 4 As shown, a petal-shaped structure is fixed at the end of the spring sheet metal strip 7, and a spring sheet strip pin hole 12 is provided at the end of the petal-shaped structure. The spring sheet strip pin holes 12 of the two spring sheet metal strips 7 are staggered so that they can be inserted together to form a channel for inserting the spring sheet strip pin 11. The spring sheet strip pin 11 is rod-shaped. After the spring sheet strip pin 11 is inserted into the spring sheet strip pin hole 12, the petal-shaped structures of the two spring sheet metal strips 7 form a hinge structure, which adapts to the relative rotation of the ends of the two spring sheet metal strips 7 when the filling port 3 is opened and closed.

[0037] The fixing method of the spring sheet metal strip 7 is as follows: first, two pieces of the spring sheet metal strip 7 are simultaneously inserted from one side into the through holes 2 on both sides of the filling port 3, and after the spring sheet metal strip 7 is positioned, the iron sheet is clamped with pliers to seal the opening, and the spring sheet metal strip 7 can be installed and fixed; the spring sheet strip pin 11 is inserted into the spring sheet strip pin hole 12 to fix it, and after the spring sheet metal strip 7 is positioned, the iron sheet is clamped with pliers to seal the opening, and the spring sheet metal strip 7 can be installed and fixed, and finally, another spring sheet strip pin 11 is inserted into the spring sheet strip pin hole 12 on the other side of the through port to fix it.

[0038] Embodiment 2

[0039] As another example, in the Anhui region of the Yangtze River to Huaihe River Diversion Project, the shipping system relies on the waterway of the Yangtze River to Chaohu section, the waterway resources of the Chaohu Lake area, and the water transfer channel connecting the Yangtze River and Huaihe River to establish the second main shipping channel from the Huaihe River system to the Yangtze River. The core construction content of the project covers aspects such as channel regulation, sand-blocking guide dike construction, and the construction of ecological fish nests. According to the "Waterway Engineering Design Code" (JTS181-2016) and the calculation and analysis research on the movement of lake flow and silt siltation in the Chaohukou channel regulation provided by scientific research units and the observation data of existing waterways, the average water level of Chaohu Lake area for many years is 7.1m, and the average wave height of the waves in the lake area near the project area is about 0.7m. Considering the effect of the guide dike intercepting silt and diverting water, the elevation of the guide dike top is designed to be 7.8m, and the dike height is about 2 to 3.1m. In similar water conservancy projects, the design of the guide dike usually needs to comprehensively consider factors such as water level, waves, and silt deposition to ensure its long-term stability.

[0040] In response to the above requirements, the second embodiment proposes, on the basis of the first embodiment, a more specific geotextile tube bag for the base of the sand retaining embankment that is automatically closed and easily spliced, such as Figure 2 , Figure 5 and Figure 6 As shown:

[0041] The spring sheet metal strip 7 has a spring sheet strip small hole 10 at the end thereof. Figure 4 As shown, two spring strip holes 10 are formed through the spring strip metal strip 7 at the petal structure, and a drawstring 8 is passed through the corresponding spring strip holes 10 of the two spring strip metal strips 7. When the drawstring 8 is tightened, the two spring strip metal strips 7 fit more closely, which can further fix the filling port 3 to ensure closure. The redundant drawstrings 8 of the bag body 1 are tied to the adjacent geotube bags respectively to ensure that the position between the geotube bags is fixed and not easy to slip.

[0042] like Figure 1 and Figure 2As shown, flanges 6 are provided on both sides of the filling port 3, through holes 2 are formed in the flanges 6, and spring sheet metal strips 7 penetrate through the through holes 2 and are provided on the flanges 6. A composite cloth reinforcement ring 14 is provided on the composite cloth 4 outside the filling port 3 to prevent the opening from deforming during filling, and also to avoid the problem of stress concentration at the end of the filling port 3 causing the bag body 1 to tear.

[0043] like Figure 1 and Figure 6 As shown, the four corners of the bag body 1 are respectively provided with drawstrings 8 for tying and fixing with adjacent tube bags to form a mesh fixing structure to ensure that the positions between the geotextile tube bags are fixed and not easy to slip.

[0044] In actual use, this automatically closed and easily spliced ​​geotextile tube bag for the base of the sand-trapping embankment is first opened with a mold to open the filling port 3, and the material is filled into the bag body 1. The size of the mold should match the width of the filling port 3 to avoid deformation of the filling port 3 caused by excessive opening. Soil, sand and other materials are poured into the bag body 1 through the filling port 3. During the filling process, the materials should be evenly distributed to avoid local overload. Stop filling when the bag capacity is 80% to 90%, leaving enough space for the filling port 3 to close.

[0045] Then remove the bag body 1, and the filling port 3 will close automatically. The spring sheet metal strip 7 has a mature process, and its size can be customized arbitrarily. The length of the spring sheet metal strip 7 can be customized according to the actual width of the filling port 3 to be used. At the same time, it has the advantages of simple structure and low cost. After the geotube bag is filled with materials, the spring sheet metal strip 7 has high elasticity and will deform when subjected to external force. When the external force is removed, it will return to its original shape. This characteristic enables the spring sheet metal strip 7 to close tightly and maintain its shape. Therefore, after removing the mold, the filling port 3 will be tightly closed together.

[0046] The small holes 10 on both sides of the spring sheet metal strip can be used to pass the draw rope 8. After the draw rope 8 is passed through, it is knotted and fixed, which can further ensure that the filling port 3 is tightly closed and not easy to open, and ensure that the draw rope is tied firmly to prevent the filling port 3 from loosening during subsequent construction.

[0047] According to the design requirements, arrange the filled geotube bags in the designated positions to ensure that the spacing between the bag bodies 1 is uniform. Check the arrangement direction of the bag bodies 1 to ensure that it is consistent with the design requirements of the dike or protective project. The drawstring 8 tied at the filling port 3 can be tied and fixed together with the drawstring 8 at the filling port 3 of the adjacent geotube bag and the drawstring 8 connected to the bottom of the bag, which not only ensures the stability of the position of the geotube bag, but also ensures the mobility of the arrangement of the geotube bag. Tie and fix the four adjacent geotube bags. When tying, pay attention to the tension of the drawstring 8 to ensure that the bag bodies 1 are tightly connected to avoid looseness.

[0048] After tying, check the stability of the bag body 1 to ensure that it is not easy to slip or tip over. After all the geotubes are spliced, check the stability of the overall structure. Adjust the unstable areas and add additional drawstrings 8 to fix them if necessary.

[0049] It should be noted that the parts in this embodiment that are the same or similar to those in the first embodiment can be referenced to each other and will not be described in detail in this application.

[0050] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

Claims

1. An automatically closed and easily spliced ​​geotube bag for the base of a sand-retaining embankment, characterized in that: include: The bag body comprises two pieces of composite cloth, the four sides of the two pieces of composite cloth are sewn together, and a filling port is opened in the center of the composite cloth on one side of the bag body, and the filling port is in the shape of a seam; A spring metal strip is provided on each side of the filling port. The spring metal strip is a memory metal and is used to control the closing of the filling port. A spring strip pin hole is provided at the end of the spring metal strip. The spring strip pin holes at the ends of the two spring metal strips are staggered and penetrated with spring strip pins to form a hinge structure.

2. The automatically closed and easily spliced ​​geotube bag for the base of the sand-trapping embankment according to claim 1 is characterized in that: The initial state of the spring sheet metal strip is a long strip-shaped plane.

3. The automatically closed and easily spliced ​​geotube bag for the base of the sand retaining embankment according to claim 1 is characterized in that: A spring strip hole is provided at the end of the spring strip metal strip, and a draw rope is passed through the spring strip holes where two spring strip metal strips are attached.

4. The automatically closed and easily spliced ​​geotube bag for the base of the sand retaining embankment according to claim 3 is characterized in that: The two draw cords at the same end of the two spring sheet metal strips are knotted and fixed.

5. The automatically closed and easily spliced ​​geotube bag for the base of the sand-trapping embankment according to claim 1 is characterized in that: A composite cloth reinforcing ring is arranged on the composite cloth around the filling opening.

6. The automatically closed and easily spliced ​​geotube bag for the base of the sand retaining embankment according to claim 1 is characterized in that: Drawstrings are respectively arranged at the four corners of the bag body, and adjacent bag bodies are connected by the drawstrings.

7. The automatically closed and easily spliced ​​geotube bag for the base of the sand retaining embankment according to claim 1 is characterized in that: Flanged edges are respectively arranged on both sides of the filling port, a through hole is formed between the flange and the composite cloth, and the spring sheet metal strip is passed through the through hole.

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