Grouting reinforcement device for soil between piles
By designing the soil grouting reinforcement device between piles and using the combined structure of L-shaped upper and lower plates and Z-shaped grouting pipelines, the poor pile formation effect and insufficient reinforcement depth of existing high-pressure rotary spray reinforcement technology in the soil engineering between piles are solved. The problem of this has achieved more efficient soil reinforcement and construction efficiency between piles.
Patent Information
- Application Number
- CN202420637998.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-03-29
AI Technical Summary
In foundation pit engineering, the application of existing high-pressure spin-spray reinforcement technology in inter-pile soil engineering has problems such as poor pile formation effect, insufficient reinforcement depth and difficulty in meeting design requirements, especially for piles under small or complex conditions of pile spacing. The reinforcement of the soil is difficult to ensure.
A soil grouting reinforcement device between piles is designed, including positioning guide structure, grouting structure and fixed plate structure, and adopts an L-shaped upper and lower plate combination design, Z-shaped grouting pipeline and rubber plug to ensure reinforcement stability and construction. Efficiency and improve durability and uniformity through pull-up ring and chute design.
The device provides better stability and support, improves the reinforcement effect and construction efficiency of soil between piles, extends the service life of the equipment, and effectively prevents grouting pipelines from being blocked, ensuring the smoothness and accuracy of construction.
Smart Images
Figure CN222275487U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of engineering construction, in particular to a soil grouting reinforcement device between piles. Background Art
[0002] In foundation pit engineering, when the construction of water-stop curtain and supporting structure is completed, when the foundation pit is excavated, due to the looseness and anisotropy of the soil, it is easy to cause soil loss between piles, resulting in excessive deformation of the foundation pit supporting structure, instability of the foundation pit and other engineering problems. The commonly used reinforcement method is high-pressure rotary spraying reinforcement. Due to the application of existing high-pressure rotary spraying construction technology in soil engineering between piles, the following problems are found: (1) the excavation of test piles and water-stop curtain pile formation is not ideal; (2) the pile formation effect is poor and the pile layer is thick. When the high-pressure rotary spraying construction process is used for soil reinforcement between piles, the soil reinforcement between piles is carried out after the construction and maintenance of the original cast-in-place piles are completed. Because the high-pressure rotary spraying equipment in the relevant technology has poor soil reinforcement effect between piles, and cannot guarantee the coordination between the reinforcement depth and the supporting pile body, it leads to serious soil loss between piles and difficulty in meeting the design and construction requirements. In addition, for piles with small pile spacing or complex conditions, high-pressure rotary spraying construction is difficult to ensure that it can be used. Summary of the invention
[0003] In view of this, the present invention aims to solve one of the related technical problems at least to a certain extent.
[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:
[0005] A soil grouting reinforcement device between piles, comprising two positioning guide structures, two grouting structures and two fixed plate structures for reinforcing soil between piles;
[0006] The two fixed plate structures are arranged symmetrically on the left and right, and a rectangular notch is provided in the middle of the two fixed plate structures after they are combined, and each fixed plate structure is connected to a corresponding grouting structure;
[0007] The two positioning guide structures are symmetrically arranged on the left and right sides of the two fixed plate structures, and each positioning guide structure is correspondingly slidably connected to one fixed plate structure;
[0008] The fixed plate structure includes an upper plate and a lower plate, the cross-sections of the upper plate and the lower plate are both L-shaped, one end of the upper plate is detachably connected to the end of the lower plate through a connecting structure, the other end of the upper plate is provided with a first grouting hole, and the end of the lower plate away from the upper plate is provided with a second grouting hole, the first grouting hole and the second grouting hole are both connected to one of the grouting structures, and the outer walls of the upper plate and the lower plate are both slidably connected to one of the positioning guide structures.
[0009] Furthermore, the grouting structure includes two grouting pipes, the first grouting hole and the second grouting hole are each connected to a corresponding grouting pipe, the grouting pipe is a Z-shaped pipe, one end of the grouting pipe is rotatably connected to the grouting hole, and the other end of the grouting pipe is provided with a flaring structure.
[0010] Furthermore, the connection structure includes a T-shaped connecting plate and a T-shaped slide groove, the T-shaped slide groove is arranged at the end of the upper plate, the T-shaped connecting plate is arranged at the end of the lower plate, and the T-shaped connecting plate and the T-shaped slide groove are detachably connected.
[0011] Furthermore, the positioning and guiding structure includes two guide plates and two fixed plates. The two guide plates are arranged in parallel, and the top of each guide plate is fixedly connected to one of the fixed plates. A first sliding groove is arranged on the outer side of the short side of the upper plate and the outer side of the long side of the lower plate, and each of the first sliding grooves is slidably connected to one of the guide plates.
[0012] Furthermore, a second sliding groove is provided on the outer side of the long side of the upper plate and the outer side of the short side of the lower plate.
[0013] Furthermore, a pulling ring is correspondingly provided on the inner side and the outer side of the bent edge of the upper plate and the lower plate.
[0014] Furthermore, a rubber plug is correspondingly arranged at the bottom of the first grouting hole and the bottom of the second grouting hole.
[0015] Compared with the prior art, the inter-pile soil grouting reinforcement device described in the utility model has the following advantages:
[0016] 1. Since the fixed plate structure adopts a combination design of an upper plate and a lower plate, the cross-section of which is L-shaped, this structure can provide better stability and support, and effectively reinforce the soil between piles. One end of the upper plate is detachably connected to the end of the lower plate through a connecting structure, making the assembly and disassembly process more convenient, and convenient for maintenance and adjustment. The outer wall of the fixed plate structure is slidably connected to the positioning guide structure, which can ensure better guidance and control during the reinforcement process and improve construction efficiency. The fixed plate structure adopts a pull ring set on the inner and outer sides of the curved edge. This design can enhance its durability, reduce wear in the stress-bearing area, and extend its service life. Rubber plugs are set at the bottom of the first grouting hole and the bottom of the second grouting hole. This design can effectively prevent impurities from entering the grouting pipe, protect the pipe from being easily blocked, and improve the smoothness and efficiency of construction.
[0017] 2. The grouting structure uses two grouting pipes, which can carry out double grouting at the same time, improving the reinforcement effect and construction efficiency. The grouting pipe adopts a Z-shaped design, which is conducive to guiding the flow of grouting materials and ensuring the uniformity and stability during the grouting process. The other end of the grouting pipe is equipped with a flared structure, which can effectively prevent the grouting material from flowing back or overflowing, ensuring the accuracy and integrity of the grouting. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:
[0019] Figure 1 This is a schematic diagram of a soil grouting reinforcement device between piles according to an embodiment of the utility model;
[0020] Figure 2 A top view of a soil grouting reinforcement device between piles according to an embodiment of the utility model;
[0021] Figure 3 This is a schematic diagram of the grouting structure described in an embodiment of the utility model.
[0022] Description of reference numerals:
[0023] 101. upper plate; 102. lower plate; 103. second slide groove; 201. connection structure; 301. grouting structure; 401. guide plate. DETAILED DESCRIPTION
[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0025] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0027] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.
[0028] A soil grouting reinforcement device between piles, such as Figure 1 As shown, it includes two positioning guide structures, two grouting structures 301 and two fixed plate structures for inter-pile soil reinforcement; the two fixed plate structures are symmetrically arranged on the left and right, and a rectangular notch is provided in the middle of the two fixed plate structures after they are combined, and each fixed plate structure is connected to a corresponding grouting structure 301; the two positioning guide structures are symmetrically arranged on the left and right sides of the two fixed plate structures, and each positioning guide structure is slidably connected to a corresponding fixed plate structure;
[0029] The fixed plate structure includes an upper plate 101 and a lower plate 102, the cross sections of the upper plate 101 and the lower plate 102 are both L-shaped, one end of the upper plate 101 is detachably connected to the end of the lower plate 102 through a connecting structure 201, the other end of the upper plate 101 is provided with a first grouting hole, and the end of the lower plate 102 away from the upper plate 101 is provided with a second grouting hole, the first grouting hole and the second grouting hole are both connected to a grouting structure 301, and the outer walls of the upper plate 101 and the lower plate 102 are both slidably connected to a positioning guide structure. In this embodiment, a rubber plug is correspondingly arranged at the bottom of the first grouting hole and the bottom of the second grouting hole. Since the fixed plate structure adopts a combined design of the upper plate 101 and the lower plate 102, the cross sections of which are both L-shaped, this structure can provide better stability and support, and effectively reinforce the soil between the piles. One end of the upper plate 101 is detachably connected to the end of the lower plate 102 through the connecting structure 201, making the assembly and disassembly process more convenient and easy to maintain and adjust. The outer wall of the fixed plate structure is slidably connected to the positioning guide structure, which can ensure better guidance and control during the reinforcement process and improve construction efficiency. The fixed plate structure adopts pull rings on the inner and outer sides of the curved edge. This design can enhance its durability, reduce wear in the stress-bearing area, and extend its service life. Rubber plugs are set at the bottom of the first grouting hole and the bottom of the second grouting hole. This design can effectively prevent impurities from entering the grouting pipe, protect the pipe from being easily blocked, and improve the smoothness and efficiency of construction.
[0030] like Figure 2-3As shown, the grouting structure 301 includes two grouting pipes, the first grouting hole and the second grouting hole are connected to a corresponding grouting pipe, the grouting pipe is a Z-shaped pipe, one end of the grouting pipe is rotatably connected to the grouting hole, and the other end of the grouting pipe is provided with a flaring structure. The connecting structure 201 includes a T-shaped connecting plate and a T-shaped chute, the T-shaped chute is arranged at the end of the upper plate 101, the T-shaped connecting plate is arranged at the end of the lower plate 102, and the T-shaped connecting plate and the T-shaped chute are detachably connected. The grouting structure 301 adopts two grouting pipes, and double grouting can be performed at the same time, which improves the reinforcement effect and construction efficiency. The grouting pipe adopts a Z-shaped design, which is conducive to guiding the flow of grouting materials and ensuring the uniformity and stability during the grouting process. The other end of the grouting pipe is provided with a flaring structure, which can effectively prevent the grouting material from flowing back or overflowing, and ensure the accuracy and integrity of the grouting.
[0031] like Figure 1 As shown, the positioning and guiding structure includes two guide plates 401 and two fixed plates. The two guide plates 401 are arranged in parallel, and the top of each guide plate 401 is fixedly connected to a fixed plate. A first sliding groove is arranged on the outer side of the short side of the upper plate 101 and the outer side of the long side of the lower plate 102, and each first sliding groove is slidably connected to a guide plate 401.
[0032] In this embodiment, a second chute 103 is provided on the outer side of the long side of the upper plate 101 and the outer side of the short side of the lower plate 102. The provision of the second chute 103 can increase the contact area between the plate and the soil, disperse the load applied to the plate, and effectively reduce single-point or local stress under the same load, thereby improving the overall bearing capacity. The design of the second chute 103 improves the contact between the plate and the soil, helps to reduce the local concentration of stress, and makes the stress more evenly transmitted to the entire plate structure, reducing the risk of damage caused by stress concentration. Through the provision of the second chute 103, the connection between the plate and the soil is tighter and firmer, which increases the stability and deformation resistance of the plate when subjected to external loads, and improves the bearing capacity of the overall structure. A pull ring is provided on the inner and outer sides of the curved edges of the upper plate 101 and the lower plate 102, respectively.
[0033] The height of the fixed plate structure is 5m, and connecting plates of different heights can also be added according to actual needs to meet engineering requirements. The purpose of the connecting structure 201 is to ensure that the upper plate 101 and the lower plate 102 can be firmly connected to form an integral structure, which is convenient for the pile driving equipment to be pressed into the soil; the grouting structure 301 is convenient for the later high-pressure rotary jet grouting. The guiding and positioning structure is convenient for controlling the verticality with the supporting piles during the pile delivery process, which can significantly enhance the effect of the coordinated work. The rubber plug can prevent the soil from filling the reserved grouting position during the pressing process. At the same time, the rubber plug can be washed away by high-pressure water pressure before grouting, which is convenient for the later grouting operation. The pull ring is connected to the pull ring with a crane rope before grouting after it is delivered to the predetermined position. The device is pulled out of the soil.
[0034] This device is a combination of two fixed plate structures, which can be combined into different inter-pile soil reinforcement devices according to different working conditions and requirements. The purpose is to seal the soil between the piles with steel, and it can also ensure that the original supporting piles are not affected by the inter-pile soil reinforcement during the grouting process. The device is pulled out at the same time during the grouting, and the stability of the supporting piles can be ensured while reinforcing.
[0035] How this example works
[0036] 1. During the construction of foundation pit support structure-prefabricated piles, a certain distance between the two piles will be reserved to reinforce the reserved soil between the piles.
[0037] 2. According to the working conditions such as the pile spacing, select devices of appropriate shape and size for connection.
[0038] 3. Position the soil reinforcement device between piles and send it to the predetermined position. Use a pile-driving device to "pile" the two connected fixed plate structures. During the pressing process, it is necessary to ensure that the pressure value of the positioning guide structure does not change by more than 10% to ensure the verticality of the device and send it to the designated position.
[0039] 4. After the fixed plate structure is sent to the designated position, the fixed plate structure is pulled and sent to the depth to ensure that there is an empty area to insert the grouting tube. Insert the grouting tube into the grouting hole. After the grouting tube is inserted, first use high-pressure water to break the lower rubber plug. After breaking it, lower the grouting tube into the lower empty area for grouting.
[0040] 5. Pull and fix the plate structure and inject grout (waste mud) with high pressure jet at the same time. After inserting the grouting flower tube, connect it to the high pressure jet equipment again for high pressure grouting. The material used can be reinforced with waste mud. At the same time, use the crane equipment to connect the pull ring. After 1-2 minutes of grouting, start the crane to pull out the device while injecting grout. The pile pulling rate and grouting rate are controlled and coordinated to complete the reinforcement of the soil between the piles.
[0041] 6. Carry out the next set of soil construction between piles and maintain the soil between piles at the same time. After the first set of grouting is completed, the fixed plate structure is pulled out and sent to the second set of soil reinforcement area between piles. The process is the same. At the same time, the soil between the first set of piles is maintained to ensure that it has a certain strength. After the construction is completed, the device is disassembled, cleaned and maintained.
[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A soil grouting reinforcement device between piles, characterized in that: It comprises two positioning and guiding structures, two grouting structures (301) and two fixed plate structures for reinforcing soil between piles; The two fixed plate structures are symmetrically arranged on the left and right sides, and a rectangular notch is provided in the middle of the two fixed plate structures after they are combined, and each of the fixed plate structures is connected to a corresponding grouting structure (301); the two positioning guide structures are symmetrically arranged on the left and right sides of the two fixed plate structures, and each of the positioning guide structures is slidably connected to a corresponding fixed plate structure; The fixed plate structure comprises an upper plate (101) and a lower plate (102), the cross-sections of the upper plate (101) and the lower plate (102) are both L-shaped, one end of the upper plate (101) is detachably connected to the end of the lower plate (102) via a connecting structure (201), the other end of the upper plate (101) is provided with a first grouting hole, and the end of the lower plate (102) away from the upper plate (101) is provided with a second grouting hole, the first grouting hole and the second grouting hole are both connected to a grouting structure (301), and the outer walls of the upper plate (101) and the lower plate (102) are both slidably connected to a positioning guide structure.
2. The inter-pile soil grouting reinforcement device according to claim 1 is characterized in that: The grouting structure (301) comprises two grouting pipes, wherein the first grouting hole and the second grouting hole are each connected to a corresponding grouting pipe, the grouting pipe is a Z-shaped pipe, one end of the grouting pipe is rotatably connected to the grouting hole, and the other end of the grouting pipe is provided with a flaring structure.
3. The inter-pile soil grouting reinforcement device according to claim 1 is characterized in that: The connection structure (201) comprises a T-shaped connection plate and a T-shaped slide groove, wherein the T-shaped slide groove is arranged at the end of the upper plate (101), and the T-shaped connection plate is arranged at the end of the lower plate (102), and the T-shaped connection plate and the T-shaped slide groove are detachably connected.
4. A soil grouting reinforcement device between piles according to any one of claims 1 to 3, characterized in that: The positioning guide structure comprises two guide plates (401) and two fixed plates, the two guide plates (401) are arranged in parallel, the top of each guide plate (401) is fixedly connected to a corresponding fixed plate, a first sliding groove is arranged on the outer side of the short side of the upper plate (101) and the outer side of the long side of the lower plate (102), and each of the first sliding grooves is slidably connected to a corresponding guide plate (401).
5. The inter-pile soil grouting reinforcement device according to claim 4 is characterized in that: A second sliding groove (103) is provided on the outer side of the long side of the upper plate (101) and the outer side of the short side of the lower plate (102).
6. The inter-pile soil grouting reinforcement device according to claim 4, characterized in that: A pulling ring is correspondingly arranged on the inner side and the outer side of the bent edge of the upper plate (101) and the lower plate (102).
7. The inter-pile soil grouting reinforcement device according to claim 4, characterized in that: A rubber plug is correspondingly arranged at the bottom of the first grouting hole and the bottom of the second grouting hole.