Membrane and tube connection structure

Abstract

This invention belongs to the field of underground structure construction technology and discloses a membrane-pipe connection structure, including a bag body, a feed pipe assembly, and two sets of clamping assemblies. The feed pipe assembly passes through the bag body along its length, with one end closed and the other end connected to a grouting machine. The grouting machine injects grout into the bag body through the feed pipe assembly, causing it to expand. The two sets of clamping assemblies are respectively located at both ends of the bag body along its length. Each clamping assembly includes an isolation ring and two clamping rings. The two isolation rings are fixed to the outer walls of the feed pipe assembly at both ends along the length of the bag body and are located within the bag body. The two clamping rings corresponding to each isolation ring are located on both sides of the corresponding isolation ring, and the clamping rings can clamp the ends of the bag body tightly to the outer walls of the feed pipe assembly. This invention improves the pressure-bearing capacity and sealing performance of the bag body; the grouting volume is controllable, reducing costs.

Description

Technical Field

[0001] This invention relates to the field of underground structure construction technology, and in particular to a membrane-pipe connection structure. 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 membrane-to-tube connection structure that can effectively seal the bag body. When actively correcting the underground structure, the bag body has strong pressure resistance and sealing performance, and the grouting volume is controllable, which can reduce costs.

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

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

[0007] The pouch itself;

[0008] The feed pipe assembly is inserted into the body of the bag along the length of the bag body, and one end of the feed pipe assembly is closed while the other end can be connected to the grouting machine.

[0009] Two sets of clamping components are respectively disposed at both ends of the bag body along the length direction. Each set of clamping components includes an isolation ring and two clamping rings. The isolation ring is fixed to the outer wall of the feed tube assembly and disposed in the bag body. The two clamping rings corresponding to the isolation ring are respectively disposed on both sides of the isolation ring. The clamping rings clamp the end of the bag body to the outer wall of the feed tube assembly.

[0010] As an optional feature, each of the clamping components also includes at least one reinforcing rib, which is fixedly connected to the feed pipe assembly and to the corresponding two clamping rings.

[0011] As an alternative, the outer wall of the clamping ring is provided with a sleeve corresponding to the reinforcing rib, and the reinforcing rib passes through the sleeve on the two corresponding clamping rings.

[0012] As an optional embodiment, the feed tube assembly includes:

[0013] A feed pipe is inserted into the body of the bag along the length direction. One end of the feed pipe is closed, and the other end can be connected to the grouting machine.

[0014] Two connecting tubes are respectively set at both ends of the bag body and sleeved outside the feed tube, and a part of the connecting tube extends into the bag body. The isolation ring is set on the outer wall of the corresponding connecting tube. The clamping ring holds the end of the bag body tightly to the outer wall of the connecting tube. The feed tube located between the two connecting tubes has a discharge hole on its wall.

[0015] Two caps are respectively connected to another part of the two connecting tubes located outside the bag body, and both caps are also fixedly sleeved on the outer wall of the feed tube.

[0016] As an alternative, the cap is threadedly connected to both the connecting pipe and the feed pipe.

[0017] As an alternative, the feed pipe has a plurality of discharge holes spaced apart along its length.

[0018] As an alternative, both the isolation ring and the connecting pipe are made of metal, and the isolation ring is welded to the outer wall of the connecting pipe.

[0019] As an optional solution, a valve is provided on the feed pipe.

[0020] As an alternative, a foamed sponge is provided between the outer wall of the connecting tube and the bag body. The foamed sponge is wrapped around the isolation ring and bonded to the outer wall of the connecting tube and the bag body with adhesive.

[0021] As an alternative, a ring band is provided between the clamping ring and the pouch body.

[0022] The beneficial effects of this invention are:

[0023] This invention provides a connection structure between a membrane and a pipe. Taking one end of the bladder body as an example, when grouting the bladder body using a grouting machine and actively correcting the underground structure, the grouting pressure exerts a force on the bladder body to detach from the feed pipe assembly. The outer clamping ring moves towards and abuts against the corresponding isolation ring. Conversely, when the bladder body expands during grouting, the inner clamping ring, subjected to the expansion force of the bladder body, also moves towards and abuts against the corresponding isolation ring. Both isolation rings move towards and abut against the isolation ring, ensuring that the clamping ring not only tightly holds the bladder body against the outer wall of the feed pipe assembly but also forms a seal between the clamping ring and the isolation ring, improving the pressure-bearing capacity and sealing performance of the bladder body. Furthermore, the grouting volume is controllable, reducing costs. Additionally, this structural design allows for convenient and quick connection between the grouting machine 100 and the feed pipe assembly 2, simplifying operation and improving work efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the connection structure between the membrane and the tube provided in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the connection between the connecting pipe and the isolation ring according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the connection between the pipe cap and the reinforcing rib in an embodiment of the present invention.

[0027] In the picture:

[0028] 1. The pouch itself;

[0029] 2. Feed pipe assembly; 21. Feed pipe; 211. Discharge hole; 212. Plug; 22. Connecting pipe; 23. Pipe cap; 231. Second threaded hole;

[0030] 3. Clamping assembly; 31. Isolation ring; 32. Clamping ring; 33. Reinforcing rib;

[0031] 100. Grouting machine; 101. Output pipe. Detailed Implementation

[0032] 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.

[0033] 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.

[0034] 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.

[0035] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] like Figures 1-3 As shown, this embodiment of the invention provides a membrane-tube connection structure, which includes a bag body 1, a feed tube assembly 2, and two sets of clamping assemblies 3. The feed tube assembly 2 is inserted into the bag body 1 along its length, with one end closed and the other end connected to a grouting machine 100. The grouting machine 100 can inject grout into the bag body 1 through the feed tube assembly 2 to cause it to expand. The two sets of clamping assemblies 3 are respectively disposed at both ends of the bag body 1 along its length. Each set of clamping assemblies 3 includes an isolation ring 31 and two clamping rings 32. The two isolation rings 31 are respectively fixed to the outer walls of the two ends of the feed tube assembly 2 along the length of the bag body 1 and disposed within the bag body 1. The two clamping rings 32 corresponding to each isolation ring 31 are respectively disposed on both sides of the corresponding isolation ring 31, and the clamping rings 32 can clamp the end of the bag body 1 tightly to the outer wall of the feed tube assembly 2.

[0037] When using the grouting machine 100 to perform grouting and actively correct the underground structure, taking one end of the bag body 1 as an example, the grouting pressure will exert a force on the bag body 1 to detach from the feed pipe assembly 2, and the outer clamping ring 32 will move toward the corresponding isolation ring 31 and abut against the isolation ring 31; while when the bag body 1 expands during grouting, the inner clamping ring 32 will also move toward the corresponding isolation ring 31 and abut against the isolation ring 31 due to the expansion force of the bag body 1. Both clamping rings 32 move toward and abut against the isolation ring 31, so that the clamping rings 32 not only tightly hold the bag body 1 against the outer wall of the feed pipe assembly 2, but also form a seal between the clamping rings 32 and the isolation ring 31, improving the pressure-bearing capacity and sealing performance of the bag body 1; and by injecting grout into the bag body 1, the grouting volume can be controlled, which can effectively save costs; in addition, this structural design makes it convenient and quick to connect the grouting machine 100 to the feed pipe assembly 2, and the operation is simple, which can improve the work efficiency.

[0038] Optionally, the clamp ring 32 can be selected as a hose clamp.

[0039] Optionally, the feed pipe assembly 2 includes a feed pipe 21, two connecting pipes 22, and two pipe caps 23. The feed pipe 21 extends along the length of the bag body 1 inside the bag body 1, with one end sealed by a plug 212 and the other end connected to the grouting machine 100. The two connecting pipes 22 are respectively located at both ends of the bag body 1 and sleeved around the feed pipe 21, with a portion of each connecting pipe 22 extending into the bag body 1. Isolation rings 31 are located on the outer wall of the corresponding connecting pipe 22, and clamping rings 32 tightly hold the end of the bag body 1 against the outer wall of the connecting pipe 22. The feed pipe 21 located between the two connecting pipes 22 has a discharge hole 211 on its wall. The two pipe caps 23 are respectively connected to the other portion of the two connecting pipes 22 located outside the bag body 1, and both pipe caps 23 are also fixedly sleeved on the outer wall of the feed pipe 21. In this structure, two connecting pipes 22 are sealed to the bag body 1, and then the connecting pipes 22 and the feed pipe 21 are connected by the pipe cap 23. The grouting machine 100 injects grout through the feed pipe 21 and discharges it into the bag body 1 through the discharge hole 211, so that a smaller diameter feed pipe 21 can be used for feeding, thereby reducing cost and weight, while also ensuring sealing.

[0040] Optionally, the end of the cap 23 connected to the connecting pipe 22 is provided with a first threaded hole, and the other end of the cap 23 connected to the feed pipe 21 is provided with a second threaded hole 231 that passes through the cap 23. The outer wall of the other part of the connecting pipe 22 located outside the bag body 1 is provided with a first external thread, and the outer wall of the feed pipe 21 is provided with a second external thread. The connecting pipe 22 is screwed into the first threaded hole through the first external thread, and the feed pipe 21 is screwed into the outer wall of the feed pipe 21 through the second external thread, so that the cap 23 and the connecting pipe 22, as well as the cap 23 and the feed pipe 21, are all threadedly connected, which is convenient for installation.

[0041] Optionally, in order to improve the grouting speed, multiple discharge holes 211 are provided, and the multiple discharge holes 211 are spaced apart along the length direction.

[0042] Optionally, such as Figure 2 As shown, both the isolation ring 31 and the connecting pipe 22 are metal components. The isolation ring 31 can be made of ribbed steel bars, and the connecting pipe 22 can be made of galvanized steel pipe. By welding the isolation ring 31 to the outer wall of the connecting pipe 22, the connection strength of the isolation ring 31 can be improved. During welding, full welding can be selected between the isolation ring 31 and the connecting pipe 22, which can effectively prevent slurry from seeping out through the gap between the isolation ring 31 and the connecting pipe 22, making the design more reasonable.

[0043] In this embodiment, the output end of the grouting machine 100 is provided with an output pipe 101, which is connected to the feed pipe 21 so that the feed pipe 21 can be connected to the grouting machine 100 conveniently and quickly.

[0044] Optionally, a pressure gauge is installed on the feed pipe 21, and the grouting machine 100 feeds through the feed pipe 21. The pressure gauge can display the grouting pressure in real time.

[0045] Optionally, a valve is also provided on the feed pipe 21 to control the opening and closing of the feed pipe 21. When grouting is performed by the grouting machine 100, the valve can be opened to facilitate grouting. After grouting is completed, the valve is closed to prevent grout from flowing out.

[0046] To further improve the sealing between the connecting tube 22 and the bag body 1, a foamed sponge is provided between the outer wall of the connecting tube 22 and the bag body 1. The foamed sponge is wrapped around the isolation ring 31 and bonded to the outer wall of the connecting tube 22 and the bag body 1 with glue. After absorbing the glue, the foamed sponge is bonded to the outer wall of the connecting tube 22 and the bag body 1 to further improve the sealing.

[0047] To prevent the clamping ring 32 from scratching the pouch body 1, a ring band is provided between the clamping ring 32 and the pouch body 1. After the ring band is wrapped around the outer end of the pouch body 1, the clamping ring 32 is tightened. The structure is reasonably designed. Optionally, the ring band can be a rubber band or a silicone band.

[0048] Refer to Figure 1 To improve the strength of the clamping ring 32, each clamping assembly 3 also includes at least one reinforcing rib 33. The reinforcing rib 33 is fixedly connected to the cap 23 of the feed pipe assembly 2 and connected to the corresponding two clamping rings 32. By setting a reinforcing rib 33 in each clamping assembly 3 and connecting it to the corresponding cap 23 and the corresponding two clamping rings 32, the reinforcing rib 33, the cap 23, and the two clamping rings 32 can form a whole, improving the overall stress performance of the clamping ring 32.

[0049] Optionally, the reinforcing rib 33 and the pipe cap 23 can be fixed by welding; the sleeve and the clamping ring 32 can be connected by welding.

[0050] Furthermore, the outer wall of the clamping ring 32 is provided with sleeves corresponding to the reinforcing ribs 33. The reinforcing ribs 33 are inserted into the sleeves on the two corresponding clamping rings 32. This structure not only enables the reinforcing ribs 33 to press against the clamping ring 32 to improve the force-bearing performance of the clamping ring 32, but also does not affect the clamping ring 32 from moving toward the isolation ring 31 when under force. The structural design is reasonable.

[0051] Optionally, multiple reinforcing ribs 33 are provided, and sleeves corresponding to the reinforcing ribs 33 are provided on the outer wall of the clamping ring 32. The multiple sleeves are evenly distributed around the circumference, and the multiple reinforcing ribs 33 are inserted into the corresponding sleeves, so that multiple reinforcing ribs 33 can simultaneously reinforce two clamping rings 32, improving the load-bearing performance. In this embodiment, as... Figure 3 As shown, four reinforcing ribs 33 are provided.

[0052] 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.

[0053] 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 connecting pipe 22 based on the borehole dimensions; in this embodiment, the diameter of the connecting pipe 22 is generally 4 inches or more. Third, seal the bag body 1 to the feed pipe assembly 2. Fourth, place the prepared bag body 1 into the borehole and connect the feed pipe 21 to the output pipe 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 output pipe 101 and the feed pipe 21.

[0054] The membrane-to-pipe connection structure enables the bag body 1 to be sealed to the feed pipe assembly 2, allowing the bag body 1 to actively correct the underground structure in a targeted manner. It can withstand grouting pressures exceeding 1 MPa 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.

[0055] 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 membrane-tube connection structure, characterized in that, include: The pouch body (1); The feed pipe assembly (2) is inserted into the bag body (1) along the length direction of the bag body (1), and one end of the feed pipe assembly (2) is closed, while the other end can be connected to the grouting machine (100). Two sets of clamping components (3) are respectively disposed at both ends of the bag body (1) along the length direction. Each set of clamping components (3) includes an isolation ring (31) and two clamping rings (32). The isolation ring (31) is fixed to the outer wall of the feed tube assembly (2) and disposed inside the bag body (1). The two clamping rings (32) corresponding to the isolation ring (31) are respectively disposed on both sides of the isolation ring (31). The clamping rings (32) clamp the end of the bag body (1) to the outer wall of the feed tube assembly (2). Each of the clamping components (3) also includes at least one reinforcing rib (33), which is fixedly connected to the feed pipe assembly (2) and connected to the corresponding two clamping rings (32); The outer wall of the clamp ring (32) is provided with a sleeve corresponding to the reinforcing rib (33), and the reinforcing rib (33) passes through the sleeve on the two corresponding clamp rings (32); The feed tube assembly (2) includes: The feed pipe (21) is inserted into the bag body (1) along the length direction. One end of the feed pipe (21) is closed, and the other end can be connected to the grouting machine (100). Two connecting tubes (22) are respectively set at both ends of the bag body (1) and sleeved on the outside of the feed tube (21), and a part of the connecting tube (22) extends into the bag body (1). The isolation ring (31) is set on the outer wall of the corresponding connecting tube (22). The clamping ring (32) clamps the end of the bag body (1) to the outer wall of the connecting tube (22). The feed tube (21) located between the two connecting tubes (22) has a discharge hole (211) on its tube wall. Two caps (23) are respectively connected to the other part of the two connecting tubes (22) located outside the bag body (1), and the two caps (23) are also fixedly sleeved on the outer wall of the feed tube (21); Both the isolation ring (31) and the connecting pipe (22) are metal parts, and the isolation ring (31) is welded to the outer wall of the connecting pipe (22).

2. The membrane-tube connection structure according to claim 1, characterized in that, The cap (23) is threadedly connected to the connecting pipe (22) and the cap (23) is threadedly connected to the feed pipe (21).

3. The membrane-tube connection structure according to claim 1, characterized in that, The feed pipe (21) has a plurality of discharge holes (211) spaced apart along the length direction.

4. The membrane-tube connection structure according to claim 1, characterized in that, A valve is installed on the feed pipe (21).

5. The membrane-tube connection structure according to claim 1, characterized in that, A foamed sponge is provided between the outer wall of the connecting tube (22) and the bag body (1). The foamed sponge is wrapped around the isolation ring (31) and bonded to the outer wall of the connecting tube (22) and the bag body (1) with glue.

6. The membrane-tube connection structure according to claim 1, characterized in that, A ring band is provided between the clamp ring (32) and the bag body (1).

Images