Modularized sectional type curtain grouting structure

Abstract

The utility model belongs to the technical field of engineering, and particularly relates to a modular sectional type curtain grouting structure which comprises an anti-seepage curtain, a cavity with an upper opening and a lower opening is formed in the anti-seepage curtain, an embedding groove and a guide hole are formed in the upper end of the anti-seepage curtain, and an anti-seepage ring is arranged at the position, corresponding to the embedding groove, of the lower end of the anti-seepage curtain. A guide hole is formed in the upper end of the anti-seepage curtain, a guide rod is arranged at the position, corresponding to the guide hole, of the lower end of the anti-seepage curtain, a clamping block is arranged at the left end of the anti-seepage curtain, a clamping groove matched with the clamping block is formed in the right end of the anti-seepage curtain, and the anti-seepage curtain is used for being filled in an excavated caulking groove. After the anti-seepage curtain is buried below the soil layer, the anti-seepage enclosing wall with the uniform thickness is formed through splicing, the anti-seepage effect on a building can be achieved, more importantly, the overall thickness of the formed anti-seepage structure is uniform and consistent, the risk of seepage is greatly reduced, the anti-seepage curtain is of a modular sectional type structure, and the construction difficulty can be reduced.

Description

Technical Field

[0001] This utility model belongs to the field of engineering technology, specifically relating to a modular segmented curtain grouting structure. Background Technology

[0002] Curtain grouting is a foundation treatment technology used in water conservancy projects, civil engineering and other fields. It is mainly used to form a continuous seepage barrier (i.e., "curtain") to prevent the infiltration of groundwater or harmful liquids, while enhancing the stability and bearing capacity of the foundation. The existing construction method mainly involves injecting grout (usually cement-based or chemical grout) into the strata (such as rock or soil) under high pressure through drilling. After the grout solidifies, it forms a continuous seepage barrier wall (curtain), which plays a role in blocking water flow and reinforcing the foundation.

[0003] For example, Chinese Patent Publication No. CN216739713U discloses a grouting curtain structure for karst areas, comprising: multiple first grouting pipes spaced apart along the grouting axis within a foundation pipe gallery, with the bottom end of any first grouting pipe extending downwards into the bedrock layer; multiple steel pipe piles continuously arranged along the outer contour line of the upstream side of the dam body, with the bottom of the steel pipe piles extending downwards into the bedrock layer; and multiple second grouting pipes corresponding one-to-one with the multiple steel pipe piles, with any second grouting pipe passing through the corresponding steel pipe pile and extending into the bedrock layer; wherein, grout is injected through the first and second grouting pipes respectively to form adjacent grouting curtains within the bedrock layer. This invention, by setting two rows of adjacent grouting curtains below and upstream of the dam body, forms an integrated seepage-proof structure with the steel pipe piles in the overburden layer and the first grouting curtain in the bedrock layer, effectively reducing leakage and lowering the seepage pressure on a single row of grouting curtains, thus improving the water-stopping effect and overall stability of the grouting curtain.

[0004] As described in the prior art of the aforementioned patent, grout is injected into the formation under high pressure through drilling to fill cracks or voids in the formation. After the grout solidifies, it forms a curtain similar to a wall, which serves to prevent seepage. However, the curtain formed by the grout penetrating into the cracks is relatively thin, making it difficult to control the grouting thickness and prone to leakage. In addition, the grouting construction requires a high degree of integrity, which increases the difficulty of construction. Utility Model Content

[0005] The purpose of this invention is to provide a modular segmented curtain grouting structure. The modular segmented anti-seepage curtain structure ensures that the overall thickness of the formed curtain is consistent, making it less prone to leakage. In addition, the modular splicing construction method can reduce the construction difficulty.

[0006] The specific technical solution adopted in this utility model is as follows:

[0007] A modular segmented curtain grouting structure includes a seepage-proof curtain. The interior of the seepage-proof curtain is a cavity with openings at the top and bottom. The upper end of the seepage-proof curtain is provided with a groove and a guide hole. The lower end of the seepage-proof curtain is provided with a seepage-proof ring corresponding to the groove. The lower end of the seepage-proof curtain is provided with a guide rod corresponding to the guide hole. The left end of the seepage-proof curtain is provided with a locking block. The right end of the seepage-proof curtain is provided with a locking groove that matches the locking block. The seepage-proof curtain is used to fill the excavated groove.

[0008] In a preferred embodiment, the inner wall of the cavity is provided with multiple sets of reinforcing ribs in a vertical direction, and a crossbeam is provided in the front-to-back direction of the cavity, with a hoisting hole through the crossbeam.

[0009] In a preferred embodiment, an installation chamber is provided inside the seepage-proof curtain. The installation chamber has openings in the front and rear directions. Pressure sensors are installed inside the installation chamber in the front and rear directions, and a baffle is fixedly installed on the outer end of each pressure sensor.

[0010] In a preferred embodiment, the diameter of the first baffle is the same as the diameter of the first installation chamber, and a sealing ring is provided on the outer edge of the first baffle.

[0011] In a preferred embodiment, an installation chamber two is also provided inside the seepage-proof curtain, a displacement sensor is installed inside the installation chamber two, and a baffle two is fixedly installed at the opening of the installation chamber two.

[0012] In a preferred embodiment, the seepage barrier curtain and the seepage barrier ring, the seepage barrier curtain and the guide rod, and the seepage barrier curtain and the locking block are all integral structures.

[0013] The technical effects achieved by this utility model are as follows:

[0014] This utility model divides the curtain into modular anti-seepage curtains. After the anti-seepage curtains are buried below the soil layer, they are spliced ​​together to form an anti-seepage wall of uniform thickness, which can play a role in preventing the building from seeping. Importantly, the overall thickness of the formed anti-seepage structure is uniform, which greatly reduces the risk of leakage. In addition, the anti-seepage curtain adopts a modular and segmented structure, which can reduce the difficulty of construction.

[0015] This utility model features an internal cavity structure with openings at the top and bottom. On the one hand, this reduces the weight of the seepage barrier itself, facilitating hoisting operations during assembly. On the other hand, the openings at the top and bottom of the cavity allow the cavities of the two seepage barriers to be connected after assembly. This facilitates the flow of grout from top to bottom into the cavity of the bottom seepage barrier for filling when grout needs to be injected into the cavity after assembly. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the structure of this utility model for splicing and installation within a trench;

[0017] Figure 2 This is a schematic diagram showing the disassembled structure of two practical waterproof curtains;

[0018] Figure 3 This is an enlarged isometric view of a practical waterproof curtain structure.

[0019] Figure 4 This is a half-section enlarged structural diagram of this practical waterproof curtain;

[0020] Figure 5 This is an enlarged cross-sectional schematic diagram of a section of the installation compartment of this practical waterproof curtain.

[0021] Figure 6 This is an enlarged cross-sectional schematic diagram of the second part of the installation chamber of this practical waterproof curtain.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Waterproof curtain; 2. Cavity; 3. Groove; 4. Waterproof ring; 5. Guide hole; 6. Guide rod; 7. Locking block; 8. Locking groove; 9. Excavation; 11. Installation compartment one; 12. Pressure sensor; 13. Baffle one; 14. Installation compartment two; 15. Displacement sensor; 21. Reinforcing rib; 22. Crossbeam; 23. Lifting hole; 131. Sealing ring; 141. Baffle two. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of this utility model. However, this utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this utility model. The phrase "in a preferred embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0027] Secondly, this utility model is described in detail with reference to the schematic diagrams. When detailing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0028] Please see the appendix Figures 1 to 3 As shown, this utility model provides a modular segmented curtain grouting structure, including a seepage-proof curtain 1. The interior of the seepage-proof curtain 1 is a cavity 2 with openings at the top and bottom. The upper end of the seepage-proof curtain 1 is provided with a groove 3 and a guide hole 5. The lower end of the seepage-proof curtain 1 is provided with a seepage-proof ring 4 corresponding to the groove 3. The lower end of the seepage-proof curtain 1 is provided with a guide rod 6 corresponding to the guide hole 5. The left end of the seepage-proof curtain 1 is provided with a locking block 7. The right end of the seepage-proof curtain 1 is provided with a locking groove 8 that matches the locking block 7. The seepage-proof curtain 1 is used to fill the excavated groove 3. The seepage-proof curtain 1 and the seepage-proof ring 4, the seepage-proof curtain 1 and the guide rod 6, and the seepage-proof curtain 1 and the locking block 7 are all integral structures.

[0029] In this embodiment, when constructing the waterproof curtain for the project, a trench 9 is first excavated on the side of the project that needs waterproofing. Then, the waterproof curtain 1 pieces are hoisted into the trench 9 and spliced ​​together to form a wall, thereby achieving the purpose of waterproofing. The splicing between the left and right waterproof curtain 1 is carried out by inserting the locking block 7 of one waterproof curtain 1 into the locking groove 8 of the other waterproof curtain 1. The splicing between the upper and lower waterproof curtain 1 is mainly carried out by aligning the waterproof ring 4 at the bottom of the upper waterproof curtain 1 with the groove 3 at the top of the lower waterproof curtain 1, so that the two waterproof curtain 1 pieces are spliced ​​together to form a whole, improving the waterproofing effect.

[0030] It should be noted that the trench 9 is opened on the side that needs to be waterproofed. The waterproofing effect is achieved by burying the anti-seepage curtain 1 in the trench 9. The trench 9 is generally excavated to the impermeable layer. Then, the anti-seepage curtain 1 is hoisted from the ground into the trench 9 piece by piece and spliced ​​from the bottom right of the trench 9 to the top to form a waterproof retaining wall.

[0031] The seepage barrier curtain 1 can be prefabricated and is typically constructed using reinforced concrete. The cavity 2, groove 3, seepage barrier ring 4, guide hole 5, guide rod 6, locking block 7, and locking groove 8 on the seepage barrier curtain 1 are all integrally cast. When joining the upper and lower seepage barrier curtains 1, first lower one is sunk into the trench 9 and installed in place. Then, upper one is lowered into the trench 9 from top to bottom, aligning with lower one. As the two seepage barrier curtains 1 are about to be joined, the guide rod 6 of upper seepage barrier curtain 1 is aligned with the guide rod 6 of lower seepage barrier curtain 1. Hole 5 is inserted to position the two waterproof curtains 1, making it easier for the waterproof ring 4 of the upper waterproof curtain 1 to be inserted into the groove 3 of the lower waterproof curtain 1. By embedding the waterproof ring 4 into the groove 3, the contact area at the upper and lower ends of the two waterproof curtains 1 is increased, thereby increasing the waterproof effect and preventing the two waterproof curtains 1 from being misaligned. When splicing the left and right waterproof curtains 1, the locking block 7 on one waterproof curtain 1 is inserted into the locking groove 8 of the other waterproof curtain 1 from top to bottom for splicing, so that the locking groove 8 on one waterproof curtain 1 is locked into the locking block 7 of the other waterproof curtain 1, and the left and right splicing forms a sufficient waterproof width.

[0032] like Figure 2 and Figure 3 As shown, the inner wall of the cavity 2 is provided with multiple sets of reinforcing ribs 21 in the vertical direction, and a crossbeam 22 is provided in the front and back direction of the cavity 2. A hoisting hole 23 is provided through the crossbeam 22.

[0033] In this embodiment, the setting of the reinforcing rib 21 can increase the overall strength of the seepage barrier 1. Most importantly, when the cavity 2 is filled with material, it can increase the contact area with the filled material, preventing cracks from occurring between the filled material and the inner wall of the seepage barrier 1. The filled material can be concrete or a suitable waterproof material.

[0034] A crossbeam 22 is provided inside the cavity 2, and a lifting hole 23 is opened on the crossbeam 22 to facilitate the insertion of ropes through the lifting hole 23 for easy lifting.

[0035] Please see Figure 4 and Figure 5 As shown, an installation chamber 11 is provided inside the seepage-proof curtain 1. The installation chamber 11 has openings in the front and back directions respectively. Pressure sensors 12 are installed in the installation chamber 11 in the front and back directions respectively. A baffle 13 is fixedly installed on the outer end of the pressure sensor 12. The diameter of the baffle 13 is the same as the diameter of the installation chamber 11. A sealing ring 131 is provided on the outer edge of the baffle 13.

[0036] In this embodiment, an installation chamber 11 is opened on the front and rear sides of the seepage barrier curtain 1, and a pressure sensor 12 is installed in the installation chamber 11 to detect the change of the squeezing force of the soil in the trench 9 on the seepage barrier curtain 1 in the front and rear direction, so as to reflect whether the soil around the seepage barrier curtain 1 has shifted.

[0037] Specifically, when the soil flows towards the seepage barrier curtain 1, it will compress the baffle 13 on the seepage barrier curtain 1. When the baffle 13 is compressed, it will move towards the pressure sensor 12, thereby compressing the pressure sensor 12. As a result, the pressure sensor 12 is compressed and obtains detection data. The sealing ring 131 on the outer ring of the baffle 13 makes the baffle 13 fit more tightly with the inner wall of the installation chamber 11, preventing soil from seeping into the installation chamber 11 through the gaps and damaging the pressure sensor 12, thus causing the detection to fail.

[0038] Please see Figure 6 As shown, an installation chamber 2 14 is also provided inside the seepage prevention curtain 1. A displacement sensor 15 is installed inside the installation chamber 2 14, and a baffle 2 141 is fixedly installed at the opening of the installation chamber 2 14.

[0039] In this embodiment, the displacement sensor 15 inside the second installation chamber 14 can detect whether the seepage prevention curtain 1 has shifted after being buried in the trench 9, thereby preventing the seepage prevention curtain 1 from being misaligned. The baffle 141 seals the opening of the second installation chamber 14, preventing soil from entering the second installation chamber 14 and damaging the displacement sensor 15. The displacement sensor 15 is preferably an accelerometer sensor. The accelerometer measures the change in acceleration of an object. When the object moves or vibrates, the accelerometer can detect the change in acceleration, thereby reflecting whether the object has moved.

[0040] It is worth noting that neither installation chamber 11 nor installation chamber 2 is connected to cavity 2. Installation chamber 11 and installation chamber 2 are independent installation spaces. After installation, displacement sensor 15 and pressure sensor 12 are equipped with pre-installed connection lines to make wired electrical connections to the control room and transmit the detection information.

[0041] The working principle of this utility model is as follows: When constructing a waterproof curtain for a project, a trench 9 is first excavated on the side of the project that requires waterproofing. Then, the waterproof curtain 1 pieces are hoisted into the trench 9 and spliced ​​together to form a wall, thereby achieving the purpose of waterproofing. The splicing between the left and right waterproof curtain 1 is achieved by inserting the locking block 7 of one waterproof curtain 1 into the locking groove 8 of the other waterproof curtain 1. The splicing between the upper and lower waterproof curtain 1 is mainly achieved by aligning the waterproof ring 4 at the bottom of the upper waterproof curtain 1 with the groove 3 at the top of the lower waterproof curtain 1. This allows the two waterproof curtain 1 pieces to be spliced ​​together to form a whole, improving the waterproofing effect.

[0042] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. A modular segmented curtain grouting structure, characterized in that: The system includes a seepage barrier (1), the interior of which is a cavity (2) with openings at the top and bottom. The upper end of the seepage barrier (1) is provided with a groove (3) and a guide hole (5). The lower end of the seepage barrier (1) is provided with a seepage barrier ring (4) corresponding to the groove (3). The lower end of the seepage barrier (1) is provided with a guide rod (6) corresponding to the guide hole (5). The left end of the seepage barrier (1) is provided with a locking block (7). The right end of the seepage barrier (1) is provided with a locking groove (8) matching the locking block (7). The seepage barrier (1) is used to fill the excavated groove (3).

2. The modular segmented curtain grouting structure according to claim 1, characterized in that: The inner wall of the cavity (2) is vertically provided with multiple sets of reinforcing ribs (21), and a crossbeam (22) is provided in the front and back direction inside the cavity (2). A hoisting hole (23) is provided through the crossbeam (22).

3. The modular segmented curtain grouting structure according to claim 1, characterized in that: The seepage-proof curtain (1) is provided with an installation chamber (11), which has openings in the front and back directions. Pressure sensors (12) are installed in the installation chamber (11) in the front and back directions, and a baffle (13) is fixedly installed on the outer end of the pressure sensor (12).

4. The modular segmented curtain grouting structure according to claim 3, characterized in that: The diameter of the baffle (13) is the same as the diameter of the installation chamber (11), and a sealing ring (131) is provided on the outer edge of the baffle (13).

5. A modular segmented curtain grouting structure according to claim 1, characterized in that: The seepage-proof curtain (1) is also provided with an installation chamber two (14), a displacement sensor (15) is installed in the installation chamber two (14), and a baffle two (141) is fixedly installed at the opening of the installation chamber two (14).

6. The modular segmented curtain grouting structure according to claim 1, characterized in that: The seepage-proof curtain (1) and seepage-proof ring (4), the seepage-proof curtain (1) and guide rod (6), and the seepage-proof curtain (1) and clamping block (7) are all integral structures.

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