Curing pile foundation construction structure of deep sludge site

By using a solidified pile foundation structure composed of locking rings and templates in deep silt sites, combined with bolt connections and tie rod supports, the problems of difficult mechanical placement and high cost in pile foundation construction in deep silt sites were solved, achieving stable forming and efficient construction.

CN121629925APending Publication Date: 2026-03-10CHINA CONSTR FIFTH ENG BUREAU HAIXI INVESTMENT & CONSTR CO LTD
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Patent Information

Application Number
CN202610099718.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-26
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing pile foundation construction methods for deep silt sites are difficult to implement mechanically on silt layers, resulting in inconvenient construction, high costs, and limited effectiveness in improving bearing capacity.

Method used

The solidified pile foundation structure consists of a locking ring, locking pull plate, bottom ring, bottom plate, surrounding plate, abutment plate and demolding mechanism. It is connected by bolt structure and combined with the design of cylindrical template and disc template to achieve integral casting and enhance the load-bearing capacity. The stability of mechanical connection and convenient disassembly are ensured by tie rod and support mechanism.

Benefits of technology

It has enabled stable forming and efficient construction of pile foundations in deep silt sites, improving construction efficiency and reliability while reducing construction difficulty and cost.

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Abstract

The invention relates to the technical field of pile foundation construction, and discloses a solidified pile foundation construction structure of a deep sludge site, which comprises at least three vertically arranged locking rings, each locking ring consists of four parts which are mutually connected through a plurality of bolt structures, and a locking pull plate is mounted between the upper and lower parts of the locking rings; a bottom ring is fixedly installed at the bottom of the locking ring on the lowermost side, a bottom plate is installed on the bottom ring through a plurality of bolt structures, a plurality of surrounding plates are installed on the outer side of the edge of the lower side of the bottom plate, the surrounding plates are connected through surrounding connecting mechanisms, and an abutting plate is installed on the outer side of the locking ring on the uppermost side in a hinged mode. The abutting plate is connected to each locking ring through a pull rod mechanism, and the bottom plate is further provided with a supporting mechanism used for supporting the abutting plate. The mold further comprises a demolding mechanism. According to the construction method, the integral pouring forming effect of the whole solidified pile foundation is achieved, under cooperation of the upper steel bars and the lower steel bars, the bearing capacity of the solidified pile foundation in the deep sludge site is further guaranteed, and practicability is high.
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Description

Technical Field

[0001] This invention relates to the field of pile foundation construction technology, specifically a solidified pile foundation construction structure for deep silt sites. Background Technology

[0002] Deep silt sites refer to geological conditions where the silt layer is thick and buried deep. Their engineering characteristics are characterized by high water content, low shear strength, high compressibility and easy rheology, which pose a severe challenge to deep foundation pit construction.

[0003] Currently, there are generally four methods for treating siltation sites: pile foundation method, replacement method, grouting method, and drainage consolidation method. For deep siltation sites, the pile foundation method is required. The bearing capacity of a pile foundation typically consists of two parts: one part is the side friction generated by the contact between the soil and the side of the pile foundation, and the other part is the end resistance generated by the contact between the bottom of the pile foundation and the soil.

[0004] However, the existing pile foundation construction method used in deep silt sites involves driving load-bearing piles through the silt layer to reach the bearing stratum, thereby solving the problem of insufficient bearing capacity of the silt layer. However, this construction method is difficult to place and move mechanically on the silt layer, inconvenient to construct, and costly. Therefore, further improvements are needed. Summary of the Invention

[0005] The purpose of this invention is to provide a solidified pile foundation construction structure for deep silt sites, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A solidification pile foundation construction structure for deep silt sites includes at least three vertically arranged locking rings. Each locking ring consists of four parts and is interconnected by multiple bolts. Locking pull plates are installed between the upper and lower parts of the locking rings. A bottom ring is fixedly installed at the bottom of the lowest locking ring. A bottom plate is installed on the bottom ring by multiple bolts. Multiple surrounding plates are installed on the outer side of the lower edge of the bottom plate. Each surrounding plate is interconnected by a surrounding mechanism. An abutment plate is hinged to the outer side of the uppermost locking ring. The abutment plate is connected to each locking ring by a tie rod mechanism. A support mechanism for supporting the abutment plate is also provided on the bottom plate. It also includes a demolding mechanism.

[0007] As an improvement of the present invention: the demolding mechanism includes a cylindrical template disposed inside the locking ring and a disc template disposed inside the enclosure plate, the disc template and the cylindrical template being internally interconnected, and the demolding mechanism further includes a positioning component.

[0008] As an improvement of the present invention: the positioning component includes a plurality of upper positioning holes through the upper edge of the cylindrical template and a plurality of lower positioning holes through the disc template. A plurality of upper reinforcing bars are inserted into the upper positioning holes and a plurality of lower reinforcing bars are inserted into the lower positioning holes.

[0009] As an improvement of the present invention, a pouring port is also provided at the center of the upper end of the cylindrical template.

[0010] As an improvement of the present invention: a bottom hole is provided through the bottom plate to cooperate with the lower positioning hole.

[0011] As an improvement of the present invention: the enclosure mechanism includes a fixing plate disposed on the edge of the enclosure panel, and a plurality of fixing bolts are installed between the fixing plates.

[0012] As an improvement of the present invention: the pull rod mechanism includes a limiting plate hinged to the inner side of the abutment plate, the upper and lower positions of the limiting plate are respectively hinged to the locking rings at the upper and lower positions by two limiting rods, and the limiting plate is also hinged to the locking ring at the middle position by an abutment rod.

[0013] As an improvement of the present invention: the support mechanism includes a guide rail plate mounted on a base plate by a plurality of bolts, a guide rail groove is provided on the guide rail plate, a support block is slidably installed inside the guide rail groove, a support rod is hingedly installed on the support block, and the upper end of the support rod is hingedly installed on the abutment plate. The support mechanism also includes a support assembly.

[0014] As an improvement of the present invention: the support assembly includes a support hole disposed inside the guide rail groove, a support column inserted into the corresponding support hole is vertically slidably installed inside the support block, and a support spring is sleeved between the support column and the support block.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting a disc template inside the locking ring and a disc template inside the enclosure, and connecting the two, the integral casting and molding of the entire solidified pile foundation is achieved. Furthermore, with the cooperation of the upper and lower reinforcing bars, the bearing capacity of the solidified pile foundation in the deep silt site is further guaranteed, which is highly practical. 2. By setting up a tie rod mechanism and a support mechanism, the overall mechanical connection strength between the locking ring and the base plate is further guaranteed, thereby ensuring the stable molding effect of the entire demolding mechanism during casting. At the same time, the above-mentioned parts are all connected by bolt structure, which makes disassembly quick and convenient, and the entire curing device is also very convenient to move during construction, further ensuring construction efficiency and high reliability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall front view of the present invention; Figure 2 This is a schematic diagram of the overall bottom view of the present invention; Figure 3 This is a partial front view schematic diagram of the structure of the present invention; Figure 4 This is a schematic diagram of the demolding mechanism in this invention; Figure 5 This is a schematic diagram of the enclosure mechanism in this invention; Figure 6 This is a schematic diagram of the tie rod mechanism in this invention; Figure 7 This is a schematic diagram of the support mechanism in this invention.

[0017] In the diagram: 1. Base plate; 2. Enclosure plate; 3. Column formwork; 4. Locking ring; 5. Bottom ring; 6. Abutment plate; 7. Locking pull plate; 8. Upper positioning hole; 9. Pouring port; 10. Disc formwork; 11. Guide rail plate; 12. Lower positioning hole; 13. Support rod; 14. Lower reinforcing bar; 15. Upper reinforcing bar; 16. Fixing bolt; 17. Fixing plate; 18. Limiting plate; 19. Abutment rod; 20. Limiting rod; 21. Guide rail groove; 22. Support hole; 23. Support block; 24. Support column; 25. Support spring; 26. Bottom hole. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0019] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention. In addition, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection", and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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 connection of two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood through the specific circumstances.

[0021] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] Example 1: See Figures 1 to 7 In this embodiment of the invention, a solidified pile foundation construction structure for deep silt sites includes at least three vertically arranged locking rings 4. Each locking ring 4 consists of four parts and is interconnected by multiple bolts, thereby ensuring the rapid assembly and disassembly of each locking ring 4. A locking pull plate 7 is installed between the upper and lower parts of the locking ring 4. A bottom ring 5 is fixedly installed at the bottom of the lowest locking ring 4. A bottom plate 1 is installed on the bottom ring 5 by multiple bolts. Multiple surrounding plates 2 are installed on the outer side of the lower edge of the bottom plate 1. Each surrounding plate 2 is interconnected by a surrounding mechanism. An abutment plate 6 is hinged to the outer side of the uppermost locking ring 4. The abutment plate 6 is connected to each locking ring 4 by a tie rod mechanism. A support mechanism for supporting the abutment plate 6 is also provided on the bottom plate 1.

[0023] The solidified pile foundation construction structure also includes a demolding mechanism, which includes a cylindrical template 3 set inside the locking ring 4 and a disc template 10 set inside the enclosure 2. The disc template 10 and the cylindrical template 3 are interconnected. The demolding mechanism also includes a positioning component.

[0024] In addition, in order to increase the bearing capacity of the solidified pile foundation in the deep silt site, this positioning component includes multiple upper positioning holes 8 that penetrate the upper edge of the cylindrical template 3 and multiple lower positioning holes 12 that penetrate the disc template 10. Multiple upper reinforcing bars 15 are inserted into the upper positioning holes 8, and multiple lower reinforcing bars 14 are inserted into the lower positioning holes 12.

[0025] In order to ensure effective concrete pouring, a pouring port 9 is also provided at the center of the upper end of the cylindrical formwork 3.

[0026] During construction, the upper steel bar 15 and the lower steel bar 14 at the corresponding positions are first inserted into the soil through the cylindrical formwork 3 and the disc formwork 10 to increase the stability of the formwork in the deep silt site. Then, concrete is poured into the cylindrical formwork 3 and the disc formwork 10 through the pouring port 9 to finally form the entire solidified pile foundation.

[0027] In addition, in order to effectively insert the lower reinforcing bar 14 into the disc template 10 through the bottom plate 1, a bottom hole 26 is provided through the bottom plate 1 to cooperate with the lower positioning hole 12.

[0028] The tie rod mechanism in this solidified pile foundation construction structure includes a limiting plate 18 hinged to the inner side of the abutment plate 6. The limiting plate 18 is hinged to the upper and lower locking rings 4 at the upper and lower positions respectively by two limiting rods 20. The limiting plate 18 is also hinged to the locking ring 4 at the middle position by an abutment rod 19. By utilizing the cooperation between the limiting rods 20 and the abutment rods 19, the tension and positioning of the three locking rings 4 are achieved, thereby effectively ensuring the supporting and limiting function of the locking rings 4 on the cylindrical template 3, and thus better enabling the subsequent pouring of the corresponding shaped solidified pile foundation.

[0029] The support mechanism in this solidified pile foundation construction structure includes a guide rail plate 11 installed on the base plate 1 by multiple bolts. The guide rail plate 11 is provided with a guide rail groove 21. A support block 23 is slidably installed inside the guide rail groove 21. A support rod 13 is hingedly installed on the support block 23. The upper end of the support rod 13 is hingedly installed on the abutment plate 6. The support mechanism also includes a support component.

[0030] The support assembly includes a support hole 22 disposed inside the guide rail groove 21, a support column 24 vertically slidably installed inside the support block 23 and inserted into the corresponding support hole 22, and a support spring 25 sleeved between the support column 24 and the support block 23.

[0031] Through the above configuration, the elastic force of the support spring 25 allows the support column 24 to insert the support block 23 into the support holes 22 at different positions, thereby limiting the position of the support block 23 inside the guide rail groove 21. Then, under the action of the support rod 13, effective support is achieved for the position of the abutment plate 6, ultimately enhancing the support performance of the pull rod mechanism. At the same time, to ensure the stable adjustment of the support block 23 inside the guide rail plate 11, the bottom of the support block 23 is designed as a trapezoidal block structure, while the guide rail groove 21 is designed as a dovetail groove structure.

[0032] Example 2: In another embodiment of the present invention, the difference between this embodiment and the above embodiment is that the enclosure mechanism includes a fixing plate 17 disposed on the edge of the enclosure plate 2, and a plurality of fixing bolts 16 are installed between the fixing plates 17.

[0033] Through the above-mentioned detachable installation connection method, the surrounding plate 2 is effectively installed around the bottom edge of the base plate 1, thereby forming a supporting effect on the disc template 10, and ultimately ensuring the purpose of concrete pouring and forming inside the disc template 10.

[0034] In summary, during construction, multiple reinforcing bars are first used to position and install the disc formwork 10 and cylindrical formwork 3 inside the deep silt site. Then, locking rings 4 and locking pull plates 7 are fitted onto the outside of the cylindrical formwork 3. Simultaneously, a bottom ring 5 is welded to the bottom locking ring 4, and a base plate 1 is bolted to the bottom of the bottom ring 5. With the assistance of the enclosure mechanism, a surrounding plate 2 is installed around the bottom of the base plate 1. Then, with the help of the tie rod mechanism and the support mechanism, the entire solidified pile foundation construction structure is effectively installed and positioned. Concrete is then poured into the formwork through the pouring port 9. After casting, the reinforcing bars remain inside the concrete, and then the remaining components can be removed. The entire operation is quick and convenient, and is worth promoting.

[0035] The above are merely 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 within the protection scope of the present invention.

Claims

1. A construction structure for a solidification pile foundation of a deep silt site, comprising at least three vertically arranged locking rings (4), characterized in that, Each locking ring (4) is composed of four parts and connected by bolts, a locking pull plate (7) is installed between the upper and lower locking rings (4), the bottom of the lowermost locking ring (4) is fixedly installed with a bottom ring (5), the bottom ring (5) is installed with a bottom plate (1) by bolts, a plurality of surrounding plates (2) are installed on the outer side of the lower edge of the bottom plate (1), each surrounding plate (2) is connected by a surrounding mechanism, the outer side of the uppermost locking ring (4) is hingedly installed with an abutting plate (6), the abutting plate (6) is connected to each locking ring (4) by a pull rod mechanism, and a supporting mechanism for supporting the abutting plate (6) is arranged on the bottom plate (1). It also comprises a demolding mechanism.

2. The construction structure for a solidified pile foundation of a deep-muddy site according to Claim 1, wherein The demolding mechanism comprises a cylindrical mold plate (3) arranged inside the locking ring (4) and a disc mold plate (10) arranged inside the surrounding plate (2), the disc mold plate (10) and the cylindrical mold plate (3) are in communication with each other, and the demolding mechanism further comprises a positioning assembly.

3. A construction structure for a solidified pile foundation of a deep mucky site according to claim 2, characterized by, The positioning assembly comprises a plurality of upper positioning holes (8) arranged through the upper end edge of the cylindrical mold plate (3) and a plurality of lower positioning holes (12) arranged through the disc mold plate (10), a plurality of upper steel bars (15) are inserted into the upper positioning holes (8), and a plurality of lower steel bars (14) are inserted into the lower positioning holes (12).

4. The construction structure for a solidified pile foundation of a deep-muddy site according to claim 3, characterized by, A pouring port (9) is further arranged at the center of the upper end of the cylindrical mold plate (3).

5. The construction structure for a solidified pile foundation of a deep-muddy site according to claim 3, characterized by, A bottom hole (26) matched with the lower positioning hole (12) is arranged through the bottom plate (1).

6. The construction structure for a solidified pile foundation of a deep-muddy site according to Claim 1, wherein The surrounding mechanism comprises a fixed plate (17) arranged at the edge of the surrounding plate (2), and a plurality of fixed bolts (16) are arranged between the fixed plates (17).

7. The construction structure for a solidified pile foundation of a deep-muddy site according to Claim 1, wherein The pull rod mechanism comprises a limiting plate (18) hingedly arranged at the inner side of the abutting plate (6), the limiting plate (18) is hingedly arranged on the upper and lower locking rings (4) by two limiting rods (20) arranged at the upper and lower positions, and the limiting plate (18) is hingedly arranged on the middle locking ring (4) by an abutting rod (19).

8. The construction structure for a solidified pile foundation of a deep-muddy site according to Claim 1, wherein The supporting mechanism comprises a guide rail plate (11) arranged on the bottom plate (1) by bolts, a guide rail groove (21) is arranged on the guide rail plate (11), a supporting block (23) is slidingly arranged in the guide rail groove (21), a supporting rod (13) is hingedly arranged on the supporting block (23), the upper end of the supporting rod (13) is hingedly arranged on the abutting plate (6), and the supporting mechanism further comprises a supporting assembly.

9. A construction structure for a solidified pile foundation of a deep mucky site according to claim 8, characterized by, The supporting assembly comprises a supporting hole (22) arranged in the guide rail groove (21), a supporting column (24) is vertically slidingly arranged in the supporting hole (22) in the supporting block (23), and a supporting spring (25) is sleeved and arranged between the supporting column (24) and the supporting block (23).