Closure film and tube connection structure

Abstract

The application belongs to the technical field of underground structure construction, and discloses a connecting structure of a closed membrane and a pipe, which comprises a bag body, a feeding sealing assembly and a closing assembly. The bag body comprises a middle expansion part, a feeding end part and a closing end part. The feeding sealing assembly comprises a feeding pipe and a first pressing part. One end of the feeding pipe is used for communicating with a grouting machine, and the other end of the feeding pipe penetrates through the feeding end part and extends into the middle expansion part. The grouting machine can inject slurry into the middle expansion part. The first pressing part can press the feeding end part against the outer wall of the feeding pipe, so that the feeding end part can be connected with the feeding pipe and sealed. The closing assembly comprises at least one group of second pressing parts and at least one sewing line. The second pressing part comprises a plurality of pressing pieces, and the plurality of pressing pieces press the closing end part. The sewing line is sewn on the closing end part along the width direction of the bag body. The application realizes that the feeding end part and the closing end part have no leakage during grouting, and the pressure bearing capacity is high.

Description

Technical Field

[0001] This invention relates to the field of underground structure construction technology, and in particular to a connection structure between a closed membrane and a pipe. Background Technology

[0002] During underground structure construction, such as foundation pit excavation, the unloading effect of the surrounding soil can cause deformation of the pit, which in turn causes adjacent buildings (such as tunnels) to deform along with the soil, thus endangering safety. Therefore, in order to reduce the impact of underground construction on surrounding buildings and protect the overall stability and safety of underground structures, it is necessary to control the deformation of underground structures.

[0003] In existing technologies, the deformation of underground structures is generally controlled by passive control methods. The passive control method mainly uses grouting to increase the strength of the soil and reduce the deformation of the underground structure. However, this method lacks purpose and the grout cannot be controlled, which leads to serious waste and the control effect is not ideal. Summary of the Invention

[0004] The purpose of this invention is to provide a connection structure between a sealing membrane and a pipe, which can effectively seal the bag body, making the grouting volume controllable when using the bag body to actively correct the underground structure, and effectively reducing costs.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] The connection structure between the sealed membrane and the tube includes:

[0007] The bag body includes a central expansion section and a feeding end and a closing end disposed at both ends of the central expansion section along the length direction of the bag body;

[0008] The feed sealing assembly includes a feed pipe and a first pressing component. One end of the feed pipe is used to communicate with a grouting machine, and the other end extends through the feed end into the intermediate expansion section. The first pressing component presses the feed end against the outer wall of the feed pipe.

[0009] The closure assembly includes at least one set of second pressing members and at least one sewing thread. The second pressing members and the sewing thread are spaced apart along the length direction of the pouch body at the closure end, and the second pressing members are located between the sewing thread and the intermediate expansion portion. The second pressing members include a plurality of pressing elements, which are spaced apart along the width direction of the pouch body and press against the closure end. The sewing thread is sewn to the closure end along the width direction of the pouch body.

[0010] As an alternative, the clamping element includes a bolt, a nut, and two washers. The bolt passes through the closed end, the nut is screwed onto the bolt, one washer is located between the nut of the bolt and the closed end, and the other washer is located between the nut and the closed end.

[0011] As an alternative, the distance between the edges of any two adjacent clamping members along the width direction of the bag body is 0.3cm-0.7cm.

[0012] As an alternative, the distance between the edge of the clamping member and the adjacent sewing line along the length of the bag body is 1cm-1.5cm.

[0013] As an alternative, multiple sewing threads are provided, and the multiple sewing threads are spaced apart along the length direction of the bag body.

[0014] As an alternative, the spacing between any two adjacent sewing threads is 0.5cm-1cm.

[0015] As an alternative, the distance between the outermost sewing thread and the edge of the closed end is 2cm-2.5cm.

[0016] As an alternative, the closed end is filled with adhesive.

[0017] As an alternative, the first clamping component includes an isolation ring and two clamping rings. The isolation ring is sleeved and fixed to the outer wall of the feed pipe and is located inside the feed end. The two clamping rings are located on both sides of the isolation ring and clamp the feed end to the outer wall of the feed pipe.

[0018] As an alternative, both the isolation ring and the feed pipe are made of metal, and the outer walls of the isolation ring and the feed pipe are welded together.

[0019] The beneficial effects of this invention are:

[0020] This invention provides a sealing structure for a membrane and a tube, which can seal the bag body. By providing a feed tube at the feed end, and having a first clamping component press the feed end against the outer wall of the feed tube, the grouting machine can prevent grout from flowing out through the outer wall of the feed tube during grouting. A second clamping component and a sewing thread are provided at the sealed end. The second clamping component includes multiple clamping parts that press the sealed end. The second clamping component is located between the sewing thread and the intermediate expansion part, allowing it to withstand grouting pressure. The sewing thread prevents grout leakage. The combined use of the second clamping component and the sewing thread ensures that the sealed end is leak-free during grouting and has strong pressure resistance. Furthermore, grouting is performed within the bag body, making the grouting volume controllable, avoiding waste, and saving costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the connection structure between the sealing membrane and the tube provided in an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the assembly structure of the feed pipe and the isolation ring involved in the embodiment of the present invention.

[0023] In the picture:

[0024] 1. Bag body; 11. Intermediate expansion section; 12. Feed inlet end; 13. Sealing end;

[0025] 2. Feed sealing assembly; 21. Feed pipe; 22. Isolation ring; 23. Clamping ring;

[0026] 3. Enclosure components; 31. Sewing thread; 32. Clamping components; 321. Bolts; 322. Washers;

[0027] 100. Grouting machine; 101. Rubber hose. Detailed Implementation

[0028] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] like Figures 1-2 As shown, this embodiment of the invention provides a connection structure between a sealing membrane and a tube, which enables the bag body 1 to be effectively sealed and used for active correction of underground structures.

[0033] The connection structure between the sealed membrane and the tube includes a bag body 1, a feeding sealing assembly 2, and a sealing assembly 3. The bag body 1 includes a central expansion section 11, a feeding end 12, and a sealing end 13. The feeding end 12 and the sealing end 13 are respectively located at both ends of the central expansion section 11 along its length, allowing slurry to be injected into the central expansion section 11 to expand it. The feeding sealing assembly 2 includes a feeding pipe 21 and a first pressing component. One end of the feeding pipe 21 is connected to a grouting machine 100. A rubber tube 101 is provided at the output end of the grouting machine 100. One end of the feeding pipe 21 is connected to the rubber tube 101, and the other end of the feeding pipe 21 passes through the feeding end 12 and extends into the central expansion section 11. The grouting machine 100 can inject slurry into the central expansion section 11 through the feeding pipe 21. The first pressing component can press the feeding end 12 against the outer wall of the feeding pipe 21, allowing the feeding end 12 to connect and seal with the feeding pipe 21. The closure component 3 includes at least one set of second pressing members and at least one sewing thread 31. The second pressing members and the sewing thread 31 are spaced apart along the length direction of the pouch body 1 at the closure end 13, and the second pressing members are located between the sewing thread 31 and the intermediate expansion portion 11. The second pressing members include a plurality of pressing elements 32. The plurality of pressing elements 32 are spaced apart along the width direction of the pouch body 1 at the closure end 13 and press the closure end 13. The sewing thread 31 is sewn to the closure end 13 along the width direction of the pouch body 1.

[0034] The connection structure between the sealing membrane and the tube effectively seals the bag body 1. By setting a feed pipe 21 at the feed end 12 and pressing the feed end 12 against the outer wall of the feed pipe 21 with a first clamping component, the grouting machine 100 can prevent the grout from flowing out through the outer wall of the feed pipe 21 when grouting through the feed pipe 21. A second clamping component and a sewing thread 31 are set at the closed end 13. The second clamping component includes multiple clamping parts 32, which clamp the closed end 13. The second clamping component is located between the sewing thread 31 and the intermediate expansion part 11, so that the second clamping component can withstand the grouting pressure. The sewing thread 31 can prevent grout leakage. The cooperation of the second clamping component and the sewing thread 31 ensures that there is no leakage at the closed end 13 during grouting and that it has strong pressure resistance. In addition, by grouting inside the bag body 1, the underground structure is actively corrected, making the grouting volume controllable, avoiding waste, and saving costs.

[0035] When actively correcting the underground structure, a hole can be drilled at the location where soil deformation occurs, and the bag body 1 can be placed into the hole. Grouting is then performed using a grouting machine 100 to expand the intermediate expansion part 11. After grouting is completed, the grouting machine 100 and rubber hose 101 are removed and the feed pipe 21 is sealed to correct the deformation of the underground structure. This method is convenient to use and the grouting volume can be precisely controlled.

[0036] Optionally, a valve is provided on the feed pipe 21. The valve can control the opening and closing of the feed pipe 21. When the grouting machine 100 is grouting, the valve can be opened to facilitate grouting. After grouting is completed, the valve is closed to prevent grout from flowing out.

[0037] To facilitate observation of the grouting pressure, a pressure gauge is also installed on the feed pipe 21.

[0038] Optionally, before installing the second clamping component and sewing thread 31 at the closed end 13, glue (such as epoxy resin AB glue) can be used to fill the closed end 13 to further improve the sealing performance of the closed end 13.

[0039] Optionally, each clamping element 32 includes a bolt 321, a nut, and two washers 322. The bolt 321 passes through the closed end 13, and the nut is screwed onto the bolt 321. Each bolt 321 has two washers 322. One washer 322 is located between the nut of the bolt 321 and the closed end 13, and the other washer 322 is located between the nut and the closed end 13. When the nut on each bolt 321 is tightened, the nut and the nut of the bolt 321 can press against the two washers 322 respectively, so that the two washers 322 press against the closed end 13. The structural design is more reasonable and the clamping force is higher.

[0040] Optionally, the bolts 321 and nuts are made of high-strength materials, and the washers 322 are made of metal to improve the pressure resistance of the closed end 13 so that the bag body 1 can withstand higher grouting pressure.

[0041] Optionally, along the width direction of the bag body 1, the distance between the edges of any two adjacent clamping members 32 (i.e., the distance between the edges of the gaskets 322 on two adjacent bolts 321) is 0.3cm-0.7cm. By setting the gap between the two gaskets 322 to 0.3cm-0.7cm, the pressure-bearing capacity of the closed end 13 can be improved, while also ensuring a sealing effect. In this embodiment, the gap between the gaskets 322 on two adjacent bolts 321 is 0.5cm.

[0042] Optionally, along the length of the pouch body 1, the distance between the edge of the pressing member 32 and the sewing thread 31 (i.e., the distance between the edge of the gasket 322 and the sewing thread 31) is 1cm-1.5cm to improve the pressure-bearing capacity and sealing capacity of the closed end 13 of the pouch body 1. In this embodiment, the distance between the edge of the gasket 322 and the sewing thread 31 is 1cm.

[0043] To further improve the sealing capability of the closed end 13, multiple sewing threads 31 are provided, and the multiple sewing threads 31 are spaced apart along the length direction of the bag body 1.

[0044] To further improve the pressure-bearing capacity of the closed end 13, multiple sets of second clamping components can be provided at intervals along the length of the bag body 1.

[0045] In this embodiment, two sewing threads 31 are provided, and one set of second pressing components is provided.

[0046] Optionally, the spacing between any two adjacent sewing threads 31 is 0.5cm-1cm, resulting in better sealing performance of the closed end 13. In this embodiment, the spacing between any two adjacent sewing threads 31 is 1cm.

[0047] Furthermore, the distance between the outermost sewing thread 31 and the edge of the closed end 13 is 2cm-2.5cm, making the structural design more reasonable. In this embodiment, the distance between the outermost sewing thread 31 and the edge of the closed end 13 is 2cm.

[0048] Optionally, the bag body 1 is made of polyester fiber (i.e., polyester), giving it high strength and elastic recovery, as well as durability. To prevent moisture from seeping out of the slurry, a waterproof inner membrane with tensile strength is provided inside the bag body 1, which can be made of polyurethane material.

[0049] Optionally, the sewing thread 31 is made of high-strength nylon thread twisted together, which has high tensile strength, good gloss and high temperature resistance.

[0050] Specifically, the first clamping component includes an isolation ring 22 and two clamping rings 23. The isolation ring 22 is sleeved and fixed to the outer wall of the feed pipe 21, and the isolation ring 22 is located inside the feed end 12. The two clamping rings 23 clamp the feed end 12 and are located on both sides of the isolation ring 22. When the grouting machine 100 performs grouting, the grouting pressure will exert a force on the bag body 1 to disengage from the feed pipe 21. At this time, the clamping ring 23 away from the intermediate expansion part 11 will move toward the isolation ring 22 and abut against the isolation ring 22. When the intermediate expansion part 11 expands, the clamping ring 23 near the intermediate expansion part 11 is subjected to the force of the expansion of the intermediate expansion part 11. At this time, the clamping ring 23 near the intermediate expansion part 11 will also move toward the isolation ring 22 and abut against the isolation ring 22. Both clamping rings 23 move toward the isolation ring 22 and simultaneously abut against the isolation ring 22, which can effectively prevent the bag body 1 from separating from the feed pipe 21, and at the same time improve the sealing performance between the feed end 12 and the feed pipe 21.

[0051] Optionally, the clamp ring 23 can be a hose clamp.

[0052] Furthermore, after the isolation ring 22 is fixed to the outer wall of the feed pipe 21, foam sponge can be used to cover the isolation ring 22 and the outer wall of the feed pipe 21 with glue (epoxy resin AB glue). The length of the foam sponge along the axial direction of the feed pipe 21 is greater than or equal to the distance between the two clamping rings 23. The feed end 12 is wrapped around the foam sponge, and the outside of the feed end 12 is wrapped with silicone tape or rubber tape. The clamping ring 23 is wrapped around the silicone tape to prevent the feed end 12 of the bag body 1 from being damaged by the clamping ring 23, and can also further improve the sealing performance.

[0053] Optionally, both the isolation ring 22 and the feed pipe 21 are made of metal. The isolation ring 22 is welded to the outer wall of the feed pipe 21, making the structure more robust. During welding, the isolation ring 22 and the feed pipe 21 can be fully welded, which can effectively prevent the slurry from seeping out through the isolation ring 22, making the design more reasonable.

[0054] In this embodiment, the isolation ring 22 is made of ribbed steel bars; the feed pipe 21 is made of galvanized steel pipe.

[0055] The process of actively controlling the deformation of underground structures is as follows: First, determine the location, depth, and diameter of the borehole based on the location, deformation value, and deformation trend of the underground structure deformation. Second, determine the dimensions of the bag body 1 and the feed pipe 21 based on the borehole dimensions; in this embodiment, the diameter of the feed pipe 21 is generally 1 inch to 4 inches. Third, seal the bag body 1. Fourth, place the prepared bag body 1 into the borehole and connect the feed pipe 21 to the rubber hose 101 of the grouting machine 100. Fifth, start the grouting machine 100 to perform grouting, control the grouting volume, and monitor the grouting pressure in real time. Sixth, after grouting is completed, close the valve and disconnect the rubber hose 101 and the feed pipe 21.

[0056] The connection structure between the sealed membrane and the pipe enables the bag body 1 to actively correct the underground structure in a targeted manner, and it can withstand grouting pressure of more than 1MPa without leakage. In addition, it has little impact on the surrounding environment, is low in cost, easy to construct, and is economical, energy-saving and environmentally friendly.

[0057] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A connection structure of a closure film and a tube, characterized by, The application relates to a bag body (1) comprising a middle inflation part (11) and a feeding end part (12) and a closed end part (13) arranged at both ends of the middle inflation part (11) along the length direction of the bag body (1). The feeding sealing assembly (2) comprises a feeding pipe (21) and a first pressing part, one end of the feeding pipe (21) is used for being communicated with a grouting machine (100), the other end of the feeding pipe (21) penetrates through the feeding end part (12) and extends into the middle inflation part (11), and the first pressing part presses the feeding end part (12) to the outer wall of the feeding pipe (21). The closed assembly (3) comprises at least one set of second pressing parts and at least one sewing line (31), the second pressing parts and the sewing line (31) are arranged at the closed end part (13) along the length direction of the bag body (1), the second pressing parts are located between the sewing line (31) and the middle inflation part (11), the second pressing parts comprise a plurality of pressing pieces (32), the pressing pieces (32) are arranged at the closed end part (13) along the width direction of the bag body (1) and press the closed end part (13), and the sewing line (31) is sewn to the closed end part (13) along the width direction of the bag body (1). The interval between the edges of any two adjacent pressing pieces (32) along the width direction of the bag body (1) is 0.3cm-0.7cm. The interval between the edge of the pressing piece (32) and the adjacent sewing line (31) along the length direction of the bag body (1) is 1cm-1.5cm. The first pressing part comprises an isolation ring (22) and two clamp rings (23), the isolation ring (22) is sleeved and fixed to the outer wall of the feeding pipe (21), the isolation ring (22) is arranged in the feeding end part (12), the two clamp rings (23) are located on the two sides of the isolation ring (22), and the clamp rings (23) tightly clamp the feeding end part (12) to the outer wall of the feeding pipe (21). The isolation ring (22) and the feeding pipe (21) are metal parts, and the isolation ring (22) and the outer wall of the feeding pipe (21) are welded. The pressing piece (32) comprises a bolt (321), a nut and two gaskets (322), the bolt (321) penetrates through the closed end part (13), the nut is screwed on the bolt (321), one gasket (322) is located between the nut cap of the bolt (321) and the closed end part (13), and the other gasket (322) is located between the nut and the closed end part (13).

2. The closure film and tube connection structure according to claim 1, wherein The sewing line (31) is provided with a plurality of sewing lines (31) arranged along the length direction of the bag body (1).

3. The closure film and tube connection structure according to claim 1, wherein The interval between any two adjacent sewing lines (31) is 0.5cm-1cm.

4. The closure film and tube connection structure according to claim 3, wherein The interval between the outermost sewing line (31) and the edge of the closed end part (13) is 2cm-2.5cm.

5. The closure membrane and tube connection structure according to claim 3, wherein The closed end part (13) is filled with glue.

6. The closure membrane and tube connection structure according to claim 1, wherein ​

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