An in-well operation platform for heightening a circular caisson

Abstract

The utility model provides a kind of well operating platform for circular caisson height connection, including caisson, and the inner layer column and the outer layer column of same azimuth are arranged in circumferential array in caisson, and the inner layer column is fixedly connected by inner layer connecting beam between, and the outer layer column is fixedly connected by outer layer connecting beam between, and the inner layer column is provided with radial connecting beam between with the outer layer column, and outer layer column and caisson inner wall are provided with fixing piece;Several annular connecting discs are provided on the inner layer column and the outer layer column, and the end of inner layer connecting beam, outer layer connecting beam and radial connecting beam is cooperatively arranged on annular connecting disc;Platform piece is arranged between inner layer connecting beam, outer layer connecting beam and radial connecting beam;The lower end of outer layer column and inner layer column is provided with support frame, and one end of support frame is fixedly arranged in caisson, to improve overall rigidity and stability.

Description

Technical Field

[0001] This utility model relates to the technical field of caisson installation platforms, and in particular to an in-well operating platform for raising circular caissons. Background Technology

[0002] In existing technologies, during the construction of caissons for raising their height, temporary operating platforms need to be built inside the caisson to meet the needs of workers for steel bar binding and formwork installation. Most existing caisson construction platforms use a frame structure combining columns and horizontal connectors. A working plane is formed by welding or bolting horizontal members to the columns, and then stepping stones or mesh are laid for workers to stand on. Existing construction platforms often employ traditional temporary scaffolding, which presents problems such as inconvenient installation, poor stability, and insufficient safety. Especially as the excavation depth of caisson pits increases, the distance between the operating platform inside the pit and the bottom of the pit continuously increases during caisson extension. Traditional scaffolding requires workers to connect components at high altitudes, necessitating a reliable and safe base. The height and position of the platform are often difficult to adjust flexibly, impacting construction efficiency, safety, and quality.

[0003] Therefore, the above-mentioned problems restrict the installation efficiency, safety and adaptability of the caisson construction platform, and a new type of installation platform is needed that can solve the problems of frame connection and support stability. Utility Model Content

[0004] To address the shortcomings and defects of existing technologies, this invention provides an in-well operating platform for raising circular caissons. To solve the problem of frame connection and support stability, this utility model provides the following technical solution.

[0005] An internal operating platform for raising a circular caisson includes a caisson, within which are arranged inner and outer columns in a circular array, aligned in the same direction. The inner columns are fixedly connected to each other by inner connecting beams, and the outer columns are fixedly connected to each other by outer connecting beams. A radial connecting beam is provided between the inner and outer columns, and the outer columns are fixed to the inner wall of the caisson by fasteners. Several annular connecting discs are provided on the inner and outer columns, and the ends of the inner, outer, and radial connecting beams are fitted onto the annular connecting discs. Platform components are provided between the inner, outer, and radial connecting beams. A support frame is provided at the lower end of the outer and inner columns, and one end of the support frame is fixedly installed inside the caisson.

[0006] Compared with existing technologies, the circular array arrangement of inner and outer columns, combined with radial connecting beams and inner and outer connecting beams, forms a stable ring frame structure, effectively distributing the load and improving overall rigidity and stability. The ring connecting plate allows for quick positioning and fixing of the connecting beams, simplifying the installation process. The fasteners ensure a firm connection between the platform and the inner wall of the caisson, preventing the platform from moving or tilting. The support frame provides bottom support, enhancing the platform's load-bearing capacity and preventing sinking.

[0007] Furthermore, the center line connecting the inner column and the annular connecting disc on the outer column is arranged parallel to the axis of the radial connecting beam on the same plane.

[0008] These improvements ensure that the installation direction of the connecting beams is consistent, reduce assembly errors, and improve the symmetry and overall stability of the structure; they also facilitate standardized production and installation, and improve construction efficiency.

[0009] Furthermore, the annular connecting plate is provided with a circumferential array of mounting holes, and the inner connecting beam, the outer connecting beam and the radial connecting beam are provided with mounting notches at both ends that cooperate with the annular connecting plate. The mounting notches are fixed to the annular connecting plate by pins. The inner connecting beam, the outer connecting beam and the radial connecting beam are installed on the inner column and the outer column.

[0010] The above improvements simplify the installation and disassembly process by using a pin connection, eliminating the need for complex tools and facilitating transportation and on-site assembly. The mounting notch component engages with the annular connecting disc, providing mechanical interlocking and enhancing the strength and reliability of the connection point.

[0011] Furthermore, the mounting notch component includes a mounting groove, which is engaged with the annular connecting disc, and through holes are formed at the top and bottom of the mounting notch component. After the through holes are coaxially engaged with the mounting holes, the outer connecting beam, the inner connecting beam, and the radial connecting beam are fixedly mounted on the inner column and the outer column by the pin component.

[0012] Through the above improvements, the mounting slot and the annular connecting plate engage to achieve initial positioning, facilitating quick alignment and fixation; the coaxial design of the through hole and the mounting hole ensures smooth insertion of the pin, a firm connection, and reduces the risk of loosening.

[0013] Furthermore, the fastener includes an integrated connecting rod and a fixing block. A bent section of the connecting rod is located near the annular connecting disc and is inserted into the mounting hole. A tie rod extends from the inner wall of the caisson. The fixing block has a mating hole, and the tie rod is inserted into the mating hole and fixed by bolts.

[0014] With the above improvements, the bent section of the connecting rod is inserted into the mounting hole, making it easy to connect the fastener to the column and improving installation flexibility; the fixing block is fixed to the inner wall of the caisson by tie rods and bolts, providing strong anchoring force and enhancing the platform's resistance to lateral displacement and overturning.

[0015] Furthermore, the lower section of the inner column is provided with a transverse support beam, which is arranged parallel to the inner connecting beam. One end of the transverse support beam is fixed to the bottom end of one of the inner columns, and the other end is fixed to the bottom end of the adjacent inner column. Multiple transverse support beams are connected to the bottom end of the inner ring frame in an intermittent manner to form a support connection.

[0016] Through the above improvements, the transverse support beams connect to the bottom of the inner column to form the bottom support of the inner ring frame, effectively improving the stability and load-bearing capacity of the bottom structure; the spaced arrangement avoids stress concentration and ensures uniform load distribution.

[0017] Furthermore, the support frame includes a radial support beam arranged parallel to the radial support beam, and the bottom of the outer column is fixedly disposed on the upper end face of the radial support beam; the upper end face of the radial support beam on the side away from the caisson abuts against the lower end face of one end of the transverse support beam; and an oblique tie member is provided at the lower end of the radial support beam, one end of the oblique tie member is connected to the radial support beam, and the other end is pre-embedded in the side wall of the caisson.

[0018] Through the above improvements, the radial support beam supports the outer column and abuts against the transverse support beam to form an integrated support system, enhancing the integrity of the platform bottom; the diagonal tie members are pre-embedded in the side wall of the caisson to provide diagonal tension, effectively resisting lateral loads and improving the platform's anti-overturning and seismic performance.

[0019] Furthermore, the platform component is provided with connecting blocks and platform plates at both ends. One end of the connecting block is welded to the platform plate, and the other end is provided with a connecting hole, which is inserted into the radial connecting beam.

[0020] With the above improvements, the connecting block is welded to the platform plate, and the other end is inserted into the radial connecting beam through the connecting hole, so as to realize the rapid installation and fixation of the platform plate; the plug-in connection method ensures that the platform plate is placed stably, facilitates adjustment and disassembly, and improves the flexibility of use. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of an in-well operating platform used for raising circular caissons; Figure 2 A schematic diagram of the overall structure of an internal operating platform for raising a circular caisson (another perspective); Figure 3 This is a magnified view of part A of an internal operating platform used for raising the height of a circular caisson; Figure 4 This is a magnified view of part B of an internal operating platform used for raising the height of a circular caisson; Figure 5 This is a magnified view of point C of an internal operating platform used for raising a circular caisson.

[0022] The components include: 1. Caisson; 2. Inner column; 2.1 Inner connecting beam; 3. Outer column; 3.1 Outer connecting beam; 4. Radial connecting beam; 5. Fixing component; 5.1 Connecting rod; 5.11 Bending section; 5.2 Fixing block; 5.21 Mating hole; 5.3 Tie rod; 6. Annular connecting plate; 6.1 Mounting hole; 7. Platform component; 7.1 Connecting block; 7.11 Connecting hole; 7.2 Platform plate; 8. Support frame; 8.1 Radial support beam; 8.2 Diagonal tie component; 9. Mounting notch component; 9.1 Mounting groove; 9.2 Through hole; 10. Pin component; 11. Horizontal support beam. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] like Figures 1 to 5As shown, an in-well operating platform for raising a circular caisson includes a caisson 1. Inside the caisson 1 are inner columns 2 and outer columns 3 arranged in a circular array with the same orientation. The inner columns 2 are fixedly connected to each other by inner connecting beams 2.1, and the outer columns 3 are fixedly connected to each other by outer connecting beams 3.1. A radial connecting beam 4 is provided between the inner columns 2 and the outer columns 3, and a fixing member 5 is provided between the outer columns 3 and the inner wall of the caisson 1. Several annular connecting discs 6 are provided on the inner columns 2 and the outer columns 3. The ends of the inner connecting beams 2.1, outer connecting beams 3.1, and radial connecting beams 4 are fitted onto the annular connecting discs 6. A platform member 7 is provided between the inner connecting beams 2.1, outer connecting beams 3.1, and radial connecting beams 4. A support frame 8 is provided at the lower end of the outer columns 3 and the inner columns 2, and one end of the support frame 8 is fixedly installed inside the caisson 1.

[0026] The circular array arrangement of inner and outer columns 3, combined with radial connecting beams 4 and inner and outer connecting beams 3.1, forms a stable ring frame structure, effectively distributing the load and improving overall rigidity and stability. The ring connecting plate 6 allows for quick positioning and fixing of the connecting beams, simplifying the installation process. The fastener 5 ensures a firm connection between the platform and the inner wall of the caisson 1, preventing the platform from moving or tilting. The support frame 8 provides bottom support, enhancing the platform's load-bearing capacity and preventing sinking.

[0027] The annular connecting discs 6 on the inner column 2 and the outer column 3 are arranged with their center lines on the same plane parallel to the axis of the radial connecting beam 4; this ensures that the installation direction of the connecting beams is consistent, reduces assembly errors, and improves the symmetry and overall stability of the structure; it also facilitates standardized production and installation, and improves construction efficiency.

[0028] The annular connecting plate 6 is provided with a circumferential array of mounting holes 6.1. The inner connecting beam 2.1, the outer connecting beam 3.1, and the radial connecting beam 4 are provided with mounting notches 9 at both ends, which are designed to mate with the annular connecting plate 6. The mounting notches 9 are fixed to the annular connecting plate 6 by pins 10. The pin connection simplifies the installation and disassembly process, eliminates the need for complex tools, and facilitates transportation and on-site assembly. The inner connecting beam 2.1, the outer connecting beam 3.1, and the radial connecting beam 4 are installed on the inner column 2 and the outer column 3 by the mounting notches 9. The mounting notches 9 are engaged with the annular connecting plate 6 to provide mechanical interlocking, enhancing the strength and reliability of the connection point.

[0029] The mounting notch component 9 includes a mounting groove 9.1, which engages with the annular connecting disc 6 to achieve initial positioning, facilitating quick alignment and fixation. Through holes 9.2 are formed at the top and bottom of the mounting notch component 9. These through holes 9.2 are coaxial with the mounting hole 6.1, ensuring smooth insertion of the pin, a secure connection, and reducing the risk of loosening. After the through hole 9.2 and the mounting hole 6.1 are coaxially engaged, the outer connecting beam 3.1, the inner connecting beam 2.1, and the radial connecting beam 4 are fixed to the inner column 2 and the outer column 3 via the pin component 10.

[0030] The fixing component 5 includes an integrated connecting rod 5.1 and a fixing block 5.2. A bent section 5.11 of the connecting rod 5.1 near the annular connecting disc 6 is inserted into the mounting hole 6.1, making it easy for the fixing component 5 to be connected to the column and improving installation flexibility. A tie rod 5.3 extends from the inner wall of the caisson 1. The fixing block 5.2 has a mating hole 5.21, and the tie rod 5.3 is inserted into the mating hole 5.21 and fixed by bolts. The fixing block 5.2 is fixed to the inner wall of the caisson 1 by the tie rod 5.3 and bolts, providing strong anchoring force and enhancing the platform's resistance to lateral displacement and overturning.

[0031] A transverse support beam 11 is provided at the lower section of the inner column 2. The transverse support beam 11 is arranged parallel to the inner connecting beam 2.1. The transverse support beam 11 connects to the bottom end of the inner column 2, forming the bottom support of the inner ring frame, which effectively improves the stability and load-bearing performance of the bottom structure. One end of the transverse support beam 11 is fixed to the bottom end of one inner column 2, and the other end is fixed to the bottom end of the adjacent inner column 2. Multiple transverse support beams 11 are connected to the bottom end of the inner ring frame in an intermittent manner to form a support connection. The intermittent arrangement avoids stress concentration and ensures uniform load distribution.

[0032] The support frame 8 includes a radial support beam 8.1 arranged parallel to the radial support beam 8.1. The bottom of the outer column 3 is fixedly set on the upper end face of the radial support beam 8.1. The upper end face of the radial support beam 8.1 on the side away from the caisson 1 abuts against the lower end face of one end of the transverse support beam 11. The radial support beam 8.1 supports the outer column 3 and abuts against the transverse support beam 11, forming an overall support system and enhancing the integrity of the platform bottom. Furthermore, a diagonal tie member 8.2 is provided at the lower end of the radial support beam 8.1. One end of the diagonal tie member 8.2 is connected to the radial support beam 8.1, and the other end is pre-embedded in the side wall of the caisson 1. The diagonal tie member 8.2, pre-embedded in the side wall of the caisson 1, provides diagonal tension, effectively resists lateral loads, and improves the platform's anti-overturning and seismic performance.

[0033] The platform component 7 has connecting blocks 7.1 and platform plates 7.2 at both ends. One end of the connecting block 7.1 is welded to the platform plate 7.2, and the other end has a connecting hole 7.11, which is inserted into the radial connecting beam 4. The connecting block 7.1 is welded to the platform plate 7.2, and the other end is inserted into the radial connecting beam 4 through the connecting hole 7.11, so as to realize the quick installation and fixation of the platform plate 7.2. The plug-in connection method ensures that the platform plate 7.2 is placed stably, which facilitates adjustment and disassembly and improves the flexibility of use.

[0034] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. An in-well operating platform for raising a circular caisson, comprising a caisson (1), characterized in that: The caisson (1) is equipped with inner columns (2) and outer columns (3) arranged in a circular array in the same orientation. The inner columns (2) are fixedly connected to each other by inner connecting beams (2.1), and the outer columns (3) are fixedly connected to each other by outer connecting beams (3.1). A radial connecting beam (4) is provided between the inner columns (2) and the outer columns (3), and a fastener (5) is provided between the outer columns (3) and the inner wall of the caisson (1). The inner columns (2) and the outer columns (3) are also equipped with fasteners (5). The caisson (1) is provided with several annular connecting discs (6), and the ends of the inner connecting beam (2.1), the outer connecting beam (3.1) and the radial connecting beam (4) are fitted on the annular connecting discs (6); a platform component (7) is provided between the inner connecting beam (2.1), the outer connecting beam (3.1) and the radial connecting beam (4); a support frame (8) is provided at the lower end of the outer column (3) and the inner column (2), and one end of the support frame (8) is fixedly installed in the caisson (1).

2. The in-well operating platform for raising a circular caisson according to claim 1, characterized in that: The center line connecting the inner column (2) and the outer column (3) on the same plane is parallel to the axis of the radial connecting beam (4).

3. The in-well operating platform for raising a circular caisson according to claim 1, characterized in that: The annular connecting plate (6) is provided with a circumferential array of mounting holes (6.1). The inner connecting beam (2.1), the outer connecting beam (3.1) and the radial connecting beam (4) are provided with mounting notches (9) that cooperate with the annular connecting plate (6) at both ends. The mounting notches (9) and the annular connecting plate (6) are fixed by pins (10). The inner connecting beam (2.1), the outer connecting beam (3.1) and the radial connecting beam (4) are installed on the inner column (2) and the outer column (3).

4. The in-well operating platform for raising a circular caisson according to claim 3, characterized in that: The mounting notch component (9) includes a mounting groove (9.1), which is engaged with the annular connecting disc (6). Through holes (9.2) are formed at the top and bottom of the mounting notch component (9). After the through holes (9.2) are coaxially engaged with the mounting hole (6.1), the outer connecting beam (3.1), the inner connecting beam (2.1), and the radial connecting beam (4) are fixed on the inner column (2) and the outer column (3) by the pin (10).

5. The in-well operating platform for raising a circular caisson according to claim 3, characterized in that: The fastener (5) includes an integrated connecting rod (5.1) and a fixing block (5.2). A bent section (5.11) of the connecting rod (5.1) is located near the annular connecting disc (6). The bent section (5.11) is inserted into the mounting hole (6.1). A tie rod (5.3) extends from the inner wall of the caisson (1). A mating hole (5.21) is provided on the fixing block (5.2). The tie rod (5.3) is inserted into the mating hole (5.21) and fixedly connected by bolts.

6. The in-well operating platform for raising a circular caisson according to claim 1, characterized in that: The lower section of the inner column (2) is provided with a transverse support beam (11). The transverse support beam (11) is arranged parallel to the inner connecting beam (2.1). One end of the transverse support beam (11) is fixed to the bottom end of one of the inner columns (2), and the other end is fixed to the bottom end of the adjacent inner column (2). Multiple transverse support beams (11) are connected to the bottom end of the inner ring frame in an intermittent manner to form a support connection.

7. The in-well operating platform for raising a circular caisson according to claim 6, characterized in that: The support frame (8) includes a radial support beam (8.1) arranged parallel to the radial support beam (8.1), and the bottom of the outer column (3) is fixedly arranged on the upper end face of the radial support beam (8.1); the upper end face of the radial support beam (8.1) away from the caisson (1) abuts against the lower end face of one end of the transverse support beam (11); and an oblique tie member (8.2) is provided at the lower end of the radial support beam (8.1), one end of the oblique tie member (8.2) is connected to the radial support beam (8.1), and the other end is embedded in the side wall of the caisson (1).

8. The in-well operating platform for raising a circular caisson according to claim 1, characterized in that: The platform component (7) is provided with connecting blocks (7.1) and platform plates (7.2) at both ends. One end of the connecting block (7.1) is welded to the platform plate (7.2), and the other end is provided with a connecting hole (7.11). The connecting hole (7.11) is inserted into the radial connecting beam (4).

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