Consolidation grouting reinforcing structure of water intake vertical shaft

Abstract

The utility model relates to a consolidation grouting reinforcing structure of a water taking vertical shaft. The consolidation grouting reinforcing structure of the water taking vertical shaft comprises a sinking cylinder, a grouting structure, a feeding pipe, a driving structure and a pushing structure. A lifting lug is installed at the top of the sinking cylinder, through holes are formed in the wall face of the sinking cylinder in an array penetrating mode, the grouting structure is arranged on the inner side of the sinking cylinder and matched with the through holes, the end of the feeding pipe penetrates to the inner side of the sinking cylinder from the top end of the sinking cylinder and is communicated with the grouting structure, and the driving structure is installed on the inner side of the sinking cylinder. The pushing structure used for pushing the grouting structure to stretch out of the through hole for grouting is in driving connection with the driving structure and matched with the grouting structure. The problem caused by improper matching of the sinking cylinder and the vertical shaft wall face in a traditional method can be solved, slurry waste is avoided, the grouting efficiency is remarkably improved, effective reinforcement of a soft geological layer is ensured, and meanwhile the construction difficulty is reduced.

Description

Technical Field

[0001] This application relates to the field of vertical shaft construction and reinforcement technology, and in particular to a consolidation grouting reinforcement structure for a water intake vertical shaft. Background Technology

[0002] Chinese invention patent CN104005768B discloses a method for reinforcing a weak geological layer in the middle section of a vertical shaft. The method involves sinking a sealed, welded cylinder into the weak geological layer section in the middle of the shaft that requires reinforcement. The cylinder contains a grouting device connected to the ground via a vertical grouting pipe. Grout is injected between the cylinder and the shaft through this grouting device. Once the grouting strength reaches the required level, the cylinder is removed, leaving only the cylinder body, thus achieving reinforcement of the weak geological layer in the middle section of the shaft. This method is characterized by convenient operation, short construction period, and high efficiency, reducing project costs and solving the problem of the difficulty in reinforcing water-rich sand layers or weak rock layers in vertical shafts using existing technologies.

[0003] However, in practical applications, if the wall of the sinker is in close contact with the inner wall of the shaft, it generates significant friction and resistance. During the lowering process, the sinker's weight must overcome this substantial resistance. Due to the excessive friction, the sinker cannot fall smoothly under its own weight and often requires additional external force to push it. This not only increases the construction difficulty but may also damage the sinker and the shaft wall. Moreover, even if the sinker is pushed with sufficient external force, it is difficult to ensure its stability and verticality during descent. If tilting occurs, subsequent grouting operations will not be able to be carried out evenly, severely affecting the reinforcement effect.

[0004] When the size of the sinker is smaller than the shaft, gaps will form between the sinker and the shaft wall. During grouting, the grout flowing from the radial grouting pipe cannot be precisely injected into the target weak geological layer; instead, a significant portion will flow into other areas along the gaps between the sinker and the shaft wall. This portion of grout fails to reinforce the weak geological layer, directly resulting in grout waste. Furthermore, because the grout cannot be effectively concentrated in the areas requiring reinforcement, the grouting process takes longer to achieve the desired reinforcement effect, thus reducing grouting efficiency. Moreover, the presence of gaps can lead to unstable grouting pressure, further affecting grouting quality and failing to ensure sufficient and uniform reinforcement of the weak geological layer, threatening the structural stability of the entire shaft. Utility Model Content

[0005] To address or partially address the problems existing in related technologies, this application provides a consolidation grouting reinforcement structure for water intake shafts. This structure can solve the problem caused by improper fit between the sinker and the shaft wall in traditional methods, avoid grout waste, significantly improve grouting efficiency, ensure effective reinforcement of weak geological layers, and reduce construction difficulty.

[0006] This application provides a consolidation grouting reinforcement structure for a water intake shaft, including a sink cylinder 1, a grouting structure, a feed pipe 4, a drive structure, and a push structure. The top of the sink cylinder 1 is equipped with a lifting lug 2, and through holes 3 are arrayed and perforated on the wall surface of the sink cylinder 1. The grouting structure is located inside the sink cylinder 1 and is configured to cooperate with the through holes 3. The end of the feed pipe 4 extends from the top of the sink cylinder 1 to the inside of the sink cylinder 1 and is connected to the grouting structure. The drive structure is installed inside the sink cylinder 1 and is used to push the grouting structure out of the through holes 3 for grouting. The push structure is connected to the drive structure and is installed in cooperation with the grouting structure.

[0007] Optionally, in some embodiments, the feed pipe 4 includes a main pipe 41 and a flexible hose 42. The bottom surface of the main pipe 41 is sealed and fixedly connected to the top of the sinker 1. The flexible hose 42 is uniformly installed on the circumferential wall at the bottom of the main pipe 41, and the flexible hose 42 is connected to the grouting structure.

[0008] Optionally, in some embodiments, the grouting structure includes a limiting cylinder 7 and a grouting pipe 8. The limiting cylinder 7 is installed inside the sinker 1 and corresponds to the through hole 3. One end of the grouting pipe 8 is slidably connected to the limiting cylinder 7, and the other end is connected to the hose 42.

[0009] Optionally, in some embodiments, the drive structure includes a drive motor 9, a threaded rod 10, and an internal threaded assembly 11. The drive motor 9 is installed at the bottom of the inner side of the sinker 1. The bottom end of the threaded rod 10 is fixedly connected to the drive end of the drive motor 9 and is coaxially arranged with the sinker 1. The internal threaded assembly 11 is screwed onto the outer side of the outer wall of the threaded rod 10. A limiting guide rod 13 is installed at the bottom of the sinker 1. The top end of the limiting guide rod 13 is inserted into the internal threaded assembly 11 and is movably connected to the internal threaded assembly 11. The pushing structure is installed on the outer side of the internal threaded assembly 11.

[0010] Optionally, in some embodiments, the pushing structure includes a pushing block 12, a mounting seat 6, and a roller 5. The pushing block 12 is arranged in an array on the outer side of the outer wall of the internal threaded assembly 11. An inclined surface is provided on the pushing block 12. The mounting seat 6 is fixedly mounted on the end of the grouting pipe 8. The roller 5 is rotatably mounted on the mounting seat 6 and overlaps with the internal threaded assembly 11 and the pushing block 12.

[0011] The technical solution provided in this application may include the following beneficial effects:

[0012] During grouting, the drive motor in this application rotates the threaded rod, causing the internal threaded assembly to move stably along the limiting guide rod. This, in turn, causes the pushing block in the pushing structure to rise. Its inclined surface causes the roller to drive the grouting pipe outward along the limiting cylinder and precisely insert it into the grouting hole of the shaft, achieving efficient and precise grout injection. This effectively solves the problem of improper fit between the sinker and the shaft wall in traditional methods, avoids grout waste, significantly improves grouting efficiency, ensures effective reinforcement of weak geological layers, reduces construction difficulty, and enhances the overall safety and stability of the construction. It has broad application prospects and promotional value in the field of weak geological layer reinforcement for water intake shafts and similar projects.

[0013] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0014] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0015] Figure 1 This is a schematic diagram of the consolidation grouting reinforcement structure of the water intake shaft shown in the embodiments of this application;

[0016] Figure 2 This is a schematic diagram of the main structure of the consolidation grouting reinforcement structure of the water intake shaft shown in the embodiments of this application;

[0017] Figure 3 This is a schematic diagram of the grouting structure, feed pipe, and push structure in accordance with the embodiments of this application;

[0018] Figure 4 This is a schematic diagram of the internal structure of the consolidation grouting reinforcement structure of the water intake shaft shown in the embodiments of this application.

[0019] Figure label:

[0020] 1. Sinking cylinder, 2. Lifting lug, 3. Through hole, 4. Feed pipe, 5. Roller, 6. Mounting seat, 7. Limiting cylinder, 8. Grouting pipe, 9. Drive motor, 10. Threaded rod, 11. Internal threaded fitting, 12. Push block, 13. Limiting guide rod, 41. Main pipe, 42. Hose. Detailed Implementation

[0021] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0022] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0023] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0024] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to 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 application according to the specific circumstances.

[0025] To address the aforementioned issues, this application provides a consolidation grouting reinforcement structure for water intake shafts. This structure solves the problems caused by improper fit between the sinker and the shaft wall in traditional methods, avoids grout waste, significantly improves grouting efficiency, ensures effective reinforcement of weak geological layers, and reduces construction difficulty.

[0026] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0027] See Figure 1-4The consolidation and grouting reinforcement structure of the water intake shaft includes a sinker 1, a grouting structure, a feed pipe 4, a drive structure, and a push structure. The top of the sinker 1 is equipped with a lifting lug 2, and through holes 3 are arrayed and perforated on the wall surface of the sinker 1. The grouting structure is set inside the sinker 1 and is configured to cooperate with the through holes 3. The end of the feed pipe 4 passes through from the top of the sinker 1 to the inside of the sinker 1 and is connected to the grouting structure. The drive structure is installed inside the sinker 1 and is used to push the grouting structure out of the through holes 3 for grouting. The push structure is connected to the drive structure and is installed in cooperation with the grouting structure.

[0028] During construction, when encountering weak geological layers in the shaft, several lifting lugs 2 fixedly installed at the top of the sinker 1 are first used to connect to a hoisting device. Since the sinker 1 is smaller than the inner wall of the shaft, the hoisting device slowly lowers the sinker 1 to the designated position within the shaft. Next, the end of the feed pipe 4 is connected to an external delivery pump, which is then started to allow grout to enter the grouting structure inside the sinker 1 through the feed pipe 4. Simultaneously, the drive structure installed inside the sinker 1 is activated. This drive structure, through a pushing mechanism located on its side and the grouting structure, applies force to the grouting structure, causing it to move and insert into the grouting hole in the shaft. With the continuous operation of the delivery pump, grout is continuously injected into the grouting hole, thereby reinforcing the weak geological layer and improving construction efficiency.

[0029] In some embodiments, the feed pipe 4 includes a main pipe 41 and a flexible hose 42. The bottom surface of the main pipe 41 is sealed and fixedly connected to the top of the sinker 1. The flexible hose 42 is uniformly installed on the circumferential wall at the bottom of the main pipe 41 and is connected to the grouting structure.

[0030] During operation, when the consolidation grouting reinforcement work of the water intake shaft is carried out, firstly, the external grout is transported to the main pipe 41 in the feed pipe 4. The main pipe 41 is kept stable because its bottom end is fixedly connected to the top of the sink cylinder 1. Then, several hoses 42 connected to the wall of the main pipe 41 will disperse the grout flowing from the main pipe 41. Each hose 42 is responsible for the task of evenly distributing the grout, ensuring that the grout can enter the subsequent grouting process in a more reasonable way, thereby providing a stable and uniform grout supply for the entire water intake shaft consolidation grouting reinforcement work, ensuring the smooth progress and quality of the grouting reinforcement work.

[0031] In some embodiments, the grouting structure includes a limiting cylinder 7 and a grouting pipe 8. The limiting cylinder 7 is installed inside the sinker 1 and corresponds to the through hole 3. One end of the grouting pipe 8 is slidably connected to the limiting cylinder 7, and the other end is connected to the hose 42.

[0032] During the grouting reinforcement operation of the water intake shaft, the grout delivered by the feed pipe 4 first enters the grouting pipe 8 through the hose 42. At this time, the limiting cylinder 7, which is installed inside the sink cylinder 1 and coaxial with the through hole 3, plays a role. Since the grouting pipe 8 is inserted into the limiting cylinder 7 in a horizontal direction, it can move horizontally along the axis of the limiting cylinder 7 when subjected to external driving force, thereby accurately aligning with the position of the through hole 3. Under the push of the driving structure and the pushing mechanism, the grouting pipe 8 moves further and its end is inserted into the grouting hole of the shaft through the through hole 3. Then, the grout flowing from the hose 42 is injected into the grouting hole of the shaft through the grouting pipe 8, completing the grouting reinforcement operation of the water intake shaft. The number and specific layout of the through hole 3 and the grouting pipe 8 can be set according to the actual situation.

[0033] In some embodiments, the drive structure includes a drive motor 9, a threaded rod 10, and an internal threaded assembly 11. The drive motor 9 is installed at the bottom end of the inner side of the sinker 1. The bottom end of the threaded rod 10 is fixedly connected to the drive end of the drive motor 9 and is coaxially arranged with the sinker 1. The internal threaded assembly 11 is screwed onto the outer side of the outer wall of the threaded rod 10. A limiting guide rod 13 is installed at the bottom end of the sinker 1. The top end of the limiting guide rod 13 is inserted into the internal threaded assembly 11 and is movably connected to the internal threaded assembly 11. The push structure is installed on the outer side of the internal threaded assembly 11.

[0034] During operation, in the grouting process, the drive motor 9, installed at the bottom inner side of the sinker 1, is first started. After the drive motor 9 starts running, its drive end drives the threaded rod 10, which is fixedly connected to it and coaxially arranged with the sinker 1, to start rotating. As the threaded rod 10 rotates, the internal threaded fitting 11, screwed to the outer wall of its outer side, moves along the axial direction of the threaded rod 10 due to the action of the threads. The movement process provides power to the subsequent push structure connected to it, enabling the entire grouting reinforcement process to proceed in an orderly manner according to the predetermined steps, thereby ensuring the effective reinforcement of the weak geological layer of the water intake shaft and improving the stability and safety of the shaft. When the drive motor 9 starts and drives the threaded rod 10 to rotate, the internal threaded fitting 11, screwed to the outer wall of the threaded rod 10, begins to move along the axial direction of the threaded rod 10. At the same time, several limiting guide rods 13 installed at the bottom of the sinker 1 function, with their top ends inserted into the internal threaded fitting 11 and movably connected to it. When the internal threaded assembly 11 moves under the drive of the threaded rod 10, the limiting guide rod 13 can limit and guide the internal threaded assembly 11, ensuring that the internal threaded assembly 11 can only move stably in the direction defined by the limiting guide rod 13, avoiding deviation or shaking during the movement, thereby ensuring that the internal threaded assembly 11 can accurately transmit power to other connected structures, thus ensuring the accuracy and stability of the entire water intake shaft consolidation grouting reinforcement operation, and enabling the grouting reinforcement work to be carried out smoothly and efficiently.

[0035] In some embodiments, the pushing structure includes a pushing block 12, a mounting seat 6, and a roller 5. The pushing blocks 12 are arranged in an array on the outer side of the outer wall of the internal threaded assembly 11. An inclined surface is provided on the pushing blocks 12. The mounting seat 6 is fixedly mounted on the end of the grouting pipe 8. The roller 5 is rotatably mounted on the mounting seat 6 and overlaps with the internal threaded assembly 11 and the pushing blocks 12.

[0036] During operation, when the drive motor 9 rotates and drives the threaded rod 10 to rotate, the internal threaded assembly 11 moves upward along the threaded rod 10. Simultaneously, the array of push blocks 12 distributed on the outer side of the outer wall of the internal threaded assembly 11 also moves upward. Since the push blocks 12 have inclined surfaces, as they move upward, the rollers 5 roll along these inclined surfaces. During this process, the rollers 5 are subjected to lateral thrust from the inclined surfaces, which is transmitted to the grouting pipe 8. This causes the grouting pipe 8 to move horizontally towards the through hole 3 under the constraint of the limiting cylinder 7. This allows the end of the grouting pipe 8 to be accurately inserted into the grouting hole of the shaft, preparing for subsequent grouting operations. This ensures the stable and efficient operation of the entire water intake shaft's consolidation grouting reinforcement structure, effectively reinforcing the weak geological layer of the shaft.

[0037] Finally, it should be noted that in this document, relationships such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "include," "contain," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0038] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0039] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A consolidation grouting reinforcement structure for a water intake shaft, characterized in that: The consolidation grouting reinforcement structure of the water intake shaft includes a sinker (1), a grouting structure, a feed pipe (4), a drive structure, and a push structure. The sinker (1) is equipped with a lifting lug (2) at the top. Through holes (3) are arrayed and opened on the wall surface of the sinker (1). The grouting structure is set inside the sinker (1) and is configured to cooperate with the through holes (3). The end of the feed pipe (4) extends from the top of the sinker (1) to the inside of the sinker (1) and is connected to the grouting structure. The drive structure is installed inside the sinker (1) and is used to push the grouting structure out of the through holes (3) for grouting. The push structure is connected to the drive structure and is installed in cooperation with the grouting structure.

2. The consolidation grouting reinforcement structure for water intake shafts according to claim 1, characterized in that: The feed pipe (4) includes a main pipe (41) and a hose (42). The bottom surface of the main pipe (41) is sealed and fixedly connected to the top of the sinker (1). The hose (42) is uniformly installed on the circumferential wall at the bottom of the main pipe (41). The hose (42) is connected to the grouting structure.

3. The consolidation grouting reinforcement structure for water intake shafts according to claim 2, characterized in that: The grouting structure includes a limiting cylinder (7) and a grouting pipe (8). The limiting cylinder (7) is installed inside the sinker (1) and corresponds to the through hole (3). One end of the grouting pipe (8) is slidably connected to the limiting cylinder (7), and the other end is connected to the hose (42).

4. The consolidation grouting reinforcement structure for water intake shafts according to claim 3, characterized in that: The drive structure includes a drive motor (9), a threaded rod (10), and an internal threaded assembly (11). The drive motor (9) is installed at the bottom of the inner side of the sinker (1). The bottom end of the threaded rod (10) is fixedly connected to the drive end of the drive motor (9) and is coaxially arranged with the sinker (1). The internal threaded assembly (11) is screwed onto the outer side of the outer wall of the threaded rod (10). A limit guide rod (13) is installed at the bottom of the sinker (1). The top end of the limit guide rod (13) is inserted into the internal threaded assembly (11) and is movably connected to the internal threaded assembly (11). The push structure is installed on the outer side of the internal threaded assembly (11).

5. The consolidation grouting reinforcement structure for water intake shafts according to claim 4, characterized in that: The pushing structure includes a pushing block (12), a mounting seat (6), and a roller (5). The pushing blocks (12) are arranged in an array on the outer side of the outer wall of the internal threaded kit (11). An inclined surface is provided on the pushing block (12). The mounting seat (6) is fixedly installed at the end of the grouting pipe (8). The roller (5) is rotatably installed on the mounting seat (6) and overlaps with the internal threaded kit (11) and the pushing block (12).

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