Open caisson device and construction method

Abstract

The invention discloses an open caisson device and a construction method, and belongs to the technical field of open caisson construction.The open caisson device comprises a pile casing and a supporting assembly, and the pile casing is provided with a vertically-through cavity; the supporting assembly comprises a plurality of first connecting blocks and a plurality of first supporting blocks, the first connecting blocks are arranged around the cavity and fixedly connected with the pile casing, the first supporting blocks are in one-to-one correspondence with the first connecting blocks, the first connecting blocks are provided with first inserting grooves, and the first supporting blocks can enter and exit from the first inserting grooves; wherein the open caisson device has a supporting state and a sinking state, and in the supporting state, a first supporting block abuts against a first connecting block and a supporting body connected to the ground so as to limit sinking of a pile casing; and in the sinking state, the first supporting block is separated from the first connecting block, the weight of the open caisson device is low, the accuracy of open caisson construction can be improved, and potential safety hazards are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of caisson construction, and in particular to a caisson device and a construction method. Background Art

[0002] In the related art, caisson structures are mostly prefabricated with reinforced concrete, with thick walls and heavy weight, and a long construction period. Moreover, when the caisson structure is applied to the sand layer, due to the high fluidity of the soil layer, the caisson's sliding speed is difficult to control, which easily causes a safety hazard that the sliding trend cannot be slowed down, and is not conducive to improving the accuracy of the construction. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a caisson device, which is light in weight, can improve the accuracy of caisson construction, and reduce safety hazards.

[0004] The invention also provides a construction method.

[0005] According to the first aspect of the present invention, the caisson device comprises: a casing having a cavity extending vertically through the casing; a support assembly comprising a plurality of first connecting blocks and a plurality of first supporting blocks, wherein the plurality of first connecting blocks are arranged around the cavity and are all fixedly connected to the casing, the first supporting blocks correspond one to one with the first connecting blocks, the first connecting blocks have a first slot, and the first supporting blocks can enter and exit the first slot; wherein the caisson device has a supporting state and a sinking state, wherein the supporting state is that the first supporting block abuts against the first connecting block and a supporting body connected to the ground to limit the sinking of the casing; and the sinking state is that the first supporting block is separated from the first connecting block.

[0006] The caisson device according to the embodiment of the present invention has at least the following beneficial effects: the diameter and wall thickness of the casing can be determined according to the engineering needs, and it is made by processing metal materials to reduce the wall thickness and weight of the caisson device, which is conducive to shortening the construction period and making the sinking speed of the caisson device easier to control. In order to improve the accuracy of construction, the caisson device also includes a support assembly, which includes a plurality of first connecting blocks and a plurality of first supporting blocks. The plurality of first connecting blocks are arranged around the cavity and are all fixed to the casing. The first supporting blocks correspond to the first connecting blocks one by one, and the first supporting blocks can enter and exit the first slot. When the When the caisson device needs to sink, the caisson device can be switched to a sinking state, and the first supporting block is separated from the first connecting block. In conjunction with the vibrator, the caisson device can be slowly and steadily sunk, making the sinking speed of the caisson device easier to control. When it is necessary to pause the sinking of the casing or the casing sinks into place, the caisson device can be switched to a supporting state, that is, the first supporting block abuts against the first connecting block and the supporting body connected to the ground to limit the sinking of the casing. The sinking depth and speed of the casing can be controlled more accurately, the accuracy of caisson construction can be improved, and the safety hazard of the downward trend that cannot be slowed down can be reduced.

[0007] According to some embodiments of the present invention, the first slot is open downward, the first support block includes a first plug-in block and a first abutment block connected to each other, the first plug-in block can enter and exit the first slot, and the first abutment block can abut or separate from the lower end of the first connection block.

[0008] Specifically, the first slot is open downward, and the first support block includes a first plug-in block and a first abutment block connected to each other. The first plug-in block can be plugged into the first slot so that the first abutment block can abut against the lower end of the first connecting block, and the support body connected to the ground can abut against the lower end of the first abutment block, thereby transmitting the load of the casing to the ground through the first connecting block, the first support block and the support body. The support body can achieve stable support for the casing through the support assembly, thereby limiting the sinking of the casing. When the first plug-in block withdraws from the first slot, the first abutment block can be separated from the first connecting block, and the vibrator can be used to achieve the sinking of the casing.

[0009] According to some embodiments of the present invention, the first connecting block is connected to a first sliding groove connected to the first slot, the first sliding groove is open downward, and the first supporting block also includes a reinforcing block, which is connected to the first plug-in block and the first abutment block, and the reinforcing block can enter and exit the first sliding groove.

[0010] Specifically, in order to enhance the supporting effect of the first supporting block, the first supporting block includes a reinforcing block, which is connected to the first plug-in block and the first abutment block to enhance the connection stability between the first plug-in block and the first abutment block. The first connecting block is adapted to be connected to a first sliding groove connected to the first slot, and the first sliding groove is open downward so that the reinforcing block can move in and out of the first sliding groove as the first plug-in block moves. The setting of the first sliding groove can avoid the problem of hindering the sliding of the reinforcing block.

[0011] According to some embodiments of the present invention, the first abutment block includes a first sub-block, a second sub-block and a third sub-block connected in sequence, the first sub-block and the third sub-block are parallel to each other and are respectively connected to the lower end and the upper end of the reinforcement block, the first sub-block can abut or separate from the first connection block, the lower end and the upper end of the second sub-block are respectively connected to the first sub-block and the third sub-block, and the second sub-block is connected to the end of the reinforcement block away from the first connection block.

[0012] Specifically, in order to further enhance the supporting effect of the first supporting block, the first abutting block includes a first sub-block, a second sub-block and a third sub-block connected in sequence, the first sub-block and the third sub-block are parallel to each other and are respectively connected to the lower end and the upper end of the reinforcing block, the first sub-block can abut or separate from the lower end of the first connecting block as the reinforcing block moves, the lower end face of the first sub-block can be used as the end face abutting against the supporting body, the lower end and the upper end of the second sub-block are respectively connected to the first sub-block and the third sub-block, the second sub-block is connected to the end of the reinforcing block away from the first connecting block, the second sub-block can enhance the stability of the connection between the reinforcing block and the first sub-block and the third sub-block, and the structural design of the first abutting block is conducive to enhancing the overall strength of the first abutting block, can effectively resist deformation, and ensure the supporting effect of the first connecting block.

[0013] According to some embodiments of the present invention, the caisson device further comprises a plurality of conduits which are arranged at intervals along the circumference of the casing and are all connected to the outer circumferential surface of the casing, the conduits are arranged at intervals from the first connecting block, and the conduits have flow passages which pass through from top to bottom.

[0014] Taking into account the problem that the casing may have difficulty in sinking, the caisson device also includes a plurality of conduits, which are arranged at intervals along the circumference of the casing and are all connected to the outer circumferential surface of the casing. The conduits have flow channels that pass through from top to bottom, and the conduits are arranged at intervals from the first connecting block, which is conducive to allowing the conduits to extend to the lower end of the casing and avoid obstruction of the conduit arrangement by the first connecting block. When the casing has difficulty in sinking, the user can inject mud or foam through the flow channel to assist the casing to continue sinking, thereby ensuring smooth completion of the construction.

[0015] According to some embodiments of the present invention, the caisson device further comprises a plurality of lifting rings, which are arranged around the cavity and are all connected to the upper end of the casing.

[0016] Specifically, the caisson device also includes a plurality of lifting rings, which are arranged around the cavity and are all connected to the upper end of the casing. The external lifting equipment can lift the casing through the lifting rings to facilitate the transportation of the casing, and lift the casing to the caisson position to complete the sinking construction operation of the casing.

[0017] According to some embodiments of the present invention, the caisson device also includes a plurality of second support blocks and a plurality of second connecting blocks, the first connecting block is connected to the outer circumferential surface of the casing, the plurality of second connecting blocks are arranged around the cavity and are all fixedly connected to the inner circumferential surface of the casing, the second support blocks correspond one-to-one to the second connecting blocks, the second connecting blocks have a second slot, and the second support blocks can enter and exit the second slot.

[0018] Specifically, the first connecting block is connected to the outer circumferential surface of the casing, that is, the support assembly can be arranged on the outer circumference of the casing, the lower end of the support body can abut against the ground, and the upper end can support the casing through the support assembly to limit the sinking of the casing, which can avoid the problem that the support body is arranged in the cavity and hinders soil extraction. The caisson device also includes multiple second support blocks and multiple second connecting blocks. The multiple second connecting blocks are arranged around the cavity and are fixedly connected to the inner circumferential surface of the casing. The second support blocks correspond to the second connecting blocks one by one. The second connecting block has a second slot, and the second support block can enter and exit the second slot. When the casing needs to be used as a permanent structure, the user can connect the second support block to the second slot and pour concrete on the bottom of the cavity to form a sealing layer on the bottom of the casing. The second support block and the second connecting block are arranged in the sealing layer, so that the structure is safer and can effectively reduce safety hazards.

[0019] The construction method according to the second embodiment of the present invention comprises the caisson device shown in the first embodiment. The construction method comprises the following steps: Survey and stake out the construction area to determine the location of the caisson; Lift the casing to the caisson location, use a vibrator to sink the casing, and monitor the sinking depth of the casing; When it is necessary to suspend the sinking of the casing or the casing is sunk into place, the caisson device is switched from the sinking state to the supporting state to limit the sinking of the casing.

[0020] The construction method according to the embodiment of the present invention has at least the following beneficial effects: the caisson device also includes a support assembly, the support assembly includes a plurality of first connection blocks and a plurality of first support blocks, the plurality of first connection blocks are arranged around the cavity and are all fixed to the casing, the first support blocks correspond to the first connection blocks one by one, the first support blocks can enter and exit the first slot, the user can measure and lay out the construction area to determine the caisson position for casing construction, and then hoist the casing to the caisson position, when the caisson device needs to be sunk, the caisson device can be switched to a sinking state, the first support block is separated from the first connection block, and the casing is sunk by a vibrator, which can realize the stable sinking of the caisson device, so that The sinking speed of the caisson device is easier to control, and the sinking depth of the casing is monitored in real time. When the sinking of the casing needs to be suspended or the casing sinks into place, the caisson device can be switched to a supporting state, that is, the first supporting block abuts against the first connecting block and the supporting body connected to the ground to limit the sinking of the casing. The sinking depth and speed of the casing can be controlled more accurately, the accuracy of caisson construction can be improved, and the potential safety hazards that the downward trend cannot be slowed down can be reduced. The diameter and wall thickness of the casing can be determined according to the needs of the project, and it can be made by processing metal materials to reduce the wall thickness and weight of the caisson device, which is conducive to shortening the construction period and making the sinking speed of the caisson device easier to control.

[0021] According to some embodiments of the present invention, the construction method further comprises: When the casing is tilted to one side, the first support block located on the tilted side of the casing is connected to the first connection block and the support body connected to the ground; The casing is sunk by means of a vibrator to correct its deviation.

[0022] When the casing tilts during the sinking process, the construction workers can connect the first support block of the casing close to the tilted side with the first connecting block and the support body connected to the ground, that is, limit the tilted side of the casing from continuing to sink, and adjust the verticality of the casing by applying vibration with a vibrator, thereby achieving deviation correction of the casing.

[0023] According to some embodiments of the present invention, the caisson device further comprises a plurality of second support blocks and a plurality of second connection blocks, the first connection block being connected to the outer circumferential surface of the casing, the plurality of second connection blocks being arranged around the cavity and being fixedly connected to the lower end of the inner circumferential surface of the casing, the second support blocks corresponding to the second connection blocks one by one, the second connection blocks having a second slot, and the second support blocks being able to enter and exit the second slot; When it is necessary to stop the sinking of the casing or the casing is sunk into place, the caisson device is switched from the sinking state to the supporting state, including: When the casing is sunk into place and the caisson device is switched to the supporting state, the second supporting block is connected to the second connecting block; Concrete is poured into the bottom of the cavity to form a sealing layer at the bottom of the casing, and the second supporting block and the second connecting block are arranged in the sealing layer.

[0024] Specifically, the first connecting block is connected to the outer circumferential surface of the casing, that is, the support assembly can be arranged on the outer circumference of the casing, the lower end of the support body can abut against the ground, and the upper end can support the casing through the support assembly to limit the sinking of the casing, which can avoid the problem that the support body is arranged in the cavity and hinders soil extraction. The caisson device also includes multiple second support blocks and multiple second connecting blocks. The multiple second connecting blocks are arranged around the cavity and are fixedly connected to the inner circumferential surface of the casing. The second support blocks correspond to the second connecting blocks one by one. The second connecting block has a second slot, and the second support block can enter and exit the second slot. When the casing needs to be used as a permanent structure, the user can connect the second support block to the second slot and pour concrete on the bottom of the cavity to form a sealing layer on the bottom of the casing. The second support block and the second connecting block are arranged in the sealing layer, so that the structure is safer and can effectively reduce safety hazards.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 A schematic diagram of the structure of a caisson device according to an embodiment of the present invention; Figure 2 This is a structural schematic diagram of the connection between the first connecting block and the first supporting block of a caisson device according to an embodiment of the present invention; Figure 3 A schematic structural diagram of a first supporting block of a caisson device according to an embodiment of the present invention; Figure 4 A flowchart of a construction method according to an embodiment of the present invention; Figure 5 A flow chart of correcting deviation and assisting sinking of casing in a construction method according to an embodiment of the present invention; Figure 6 The present invention is a flowchart of a construction method for constructing a bottom sealing layer according to an embodiment of the present invention.

[0027] Figure Number: 100, casing; 110, cavity; 200, support assembly; 210, first support block; 211, first plug-in block; 212, first abutment block; 2121, first sub-block; 2122, second sub-block; 2123, third sub-block; 213, reinforcement block; 220, first connection block; 221, first slot; 222, first sliding groove; 300, catheter; 310, flow channel; 400, rings; 510. Second supporting block; 520. Second connecting block. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that descriptions involving orientation, such as orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 should not be understood as a limitation on the present invention.

[0030] In the description of the present invention, "a plurality" means more than two. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] Traditional caisson structures are mostly prefabricated with reinforced concrete, with thick walls and heavy weight, and a long construction period. When the caisson structure is applied to sandy soil, the caisson's sliding speed is difficult to control due to the high fluidity of the soil layer, which can easily cause safety hazards such as the sliding trend cannot be slowed down. Especially when the hole diameter is small, the construction efficiency of the caisson structure made of reinforced concrete is low, and the disadvantages of being bulky are particularly prominent.

[0033] Reference Figures 1 to 3 As shown, a caisson device according to an embodiment of the present invention can be applied to bridge pile foundations, caps, and other foundation construction fields. The caisson device includes a casing 100 and a support assembly 200 .

[0034] Reference Figure 1 , Figure 2 and Figure 3 As shown, the casing 100 has a cavity 110 that runs through from top to bottom. The diameter and wall thickness of the casing 100 can be determined according to engineering needs. It is made by processing metal materials to reduce the wall thickness and weight of the caisson device, which is beneficial to shortening the construction period and making the sinking speed of the caisson device easier to control.

[0035] Reference Figure 1 , Figure 2 and Figure 3 As shown, in order to improve the accuracy of construction, the caisson device also includes a support assembly 200, the support assembly 200 includes a plurality of first connecting blocks 220 and a plurality of first supporting blocks 210, the plurality of first connecting blocks 220 are arranged around the cavity 110 and are all fixed to the outer peripheral surface of the casing 100, the first supporting blocks 210 correspond one-to-one with the first connecting blocks 220, and the first supporting blocks 210 can enter and exit the first slots 221.

[0036] Reference Figure 1 , Figure 2 and Figure 3 As shown, the caisson device has a supporting state and a sinking state. The supporting state is that the first supporting block 210 abuts against the first connecting block 220 and the supporting body connected to the ground to limit the sinking of the casing 100; the sinking state is that the first supporting block 210 is separated from the first connecting block 220.

[0037] Reference Figure 1 , Figure 2 and Figure 3 As shown, when the caisson device needs to sink, the caisson device can be switched to a sinking state, so that the first support block 210 is separated from the first connecting block 220, and in conjunction with the vibrator, the caisson device can be stably sunk, making the sinking speed of the caisson device easier to control.

[0038] Reference Figure 1 , Figure 2 and Figure 3 As shown, when it is necessary to pause the sinking of the casing 100 or the casing 100 is sunk into place, the caisson device can be switched to a supporting state, that is, the first supporting block 210 is in contact with the first connecting block 220 and the supporting body connected to the ground to limit the sinking of the casing 100. The sinking depth and speed of the casing 100 can be controlled more accurately, the accuracy of the caisson construction can be improved, the casing 100 is stable during construction breaks and when it is sunk into place, and the risk of uncontrollable sliding of the casing 100 can be avoided.

[0039] Reference Figure 1 , Figure 2 and Figure 3 As shown, during construction, construction workers can dig out the soil inside the cavity 110 and sink the casing 100 alternately until the casing 100 sinks to the designed elevation and then perform concrete bottom sealing.

[0040] Reference Figure 1 , Figure 2 and Figure 3 As shown, it can be understood that the multiple first connection blocks 220 are located on the same horizontal plane, and the multiple first connection blocks 220 are all connected to the upper end of the casing 100, so that a distance is left between the first connection block 220 and the ground, and the distance can be accommodated by the support body, so that the lower end of the support body abuts against the ground, and the upper end of the support body abuts against the support assembly 200, so as to achieve abutment against the casing 100 and limit the sinking of the casing 100.

[0041] Reference Figure 1 , Figure 2 and Figure 3 As shown, it should be noted that the support body can be a sandbox, a jack or other supporting objects, which are more flexible and convenient to use and can be made or adjusted according to different support height requirements.

[0042] Reference Figure 1 , Figure 2 and Figure 3As shown, it can be understood that the first slot 221 is open downward, the first support block 210 includes a first plug-in block 211 and a first abutment block 212 connected to each other, the first plug-in block 211 and the first abutment block 212 are arranged at an angle, the first plug-in block 211 can enter and exit the first slot 221, and the first abutment block 212 can abut or separate from the lower end of the first connection block 220.

[0043] Reference Figure 1 , Figure 2 and Figure 3 As shown, the first plug-in block 211 can be plugged into the first slot 221, so that the first abutment block 212 can abut against the lower end of the first connecting block 220, and the support body connected to the ground can abut against the lower end of the first abutment block 212, so that the load of the casing 100 is transmitted to the ground through the first connecting block 220, the first support block 210 and the support body, and the support body can achieve stable support for the casing 100 through the support assembly 200, thereby limiting the sinking of the casing 100, and when the first plug-in block 211 withdraws from the first slot 221, the first abutment block 212 can be separated from the first connecting block 220, and the vibrator can be used to achieve the sinking of the casing 100.

[0044] Reference Figure 1 , Figure 2 and Figure 3 As shown, in order to simplify the construction difficulty of the first slot 221, the first slot 221 can be perforated, that is, the first slot 221 is through-set from top to bottom to reduce the manufacturing difficulty of the caisson device.

[0045] Reference Figure 1 , Figure 2 and Figure 3 As shown, specifically, the casing 100 can be made of rolled steel plates, and the first connection blocks 220 can be fixedly connected to the outer circumference of the casing 100 by welding. A plurality of first connection blocks 220 are arranged along the casing 100 at equal intervals in the circumferential direction.

[0046] Reference Figure 1 , Figure 2 and Figure 3 As shown, it can be understood that in order to enhance the supporting effect of the first support block 210, the first support block 210 also includes a reinforcing block 213, and the reinforcing block 213 is connected to the first plug-in block 211 and the first abutment block 212 to enhance the connection stability between the first plug-in block 211 and the first abutment block 212. The first connection block 220 is adapted to be connected with a first sliding groove 222 that is connected to the first slot 221. The first sliding groove 222 is arranged to be through-connected from top to bottom, so that the reinforcing block 213 can move in and out of the first sliding groove 222 as the first plug-in block 211 moves. The setting of the first sliding groove 222 can avoid the problem of hindering the sliding of the reinforcing block 213.

[0047] Reference Figure 1 , Figure 2 and Figure 3 As shown, specifically, the first abutment block 212 includes a first sub-block 2121, a second sub-block 2122 and a third sub-block 2123 which are connected in sequence, the first sub-block 2121 and the third sub-block 2123 are parallel to each other and are respectively connected to the lower end and the upper end of the reinforcing block 213, and the first sub-block 2121 can abut against or separate from the first connecting block 220.

[0048] Reference Figure 1 , Figure 2 and Figure 3 As shown, specifically, the second sub-block 2122 is arranged at right angles to the first sub-block 2121 and the third sub-block 2123. The lower end and the upper end of the second sub-block 2122 are connected to the first sub-block 2121 and the third sub-block 2123 respectively, and the second sub-block 2122 is connected to the end of the reinforcing block 213 away from the first connecting block 220.

[0049] Reference Figure 1 , Figure 2 and Figure 3 As shown, the first sub-block 2121 can abut or separate from the lower end of the first connecting block 220 as the reinforcing block 213 moves, and the lower end face of the first sub-block 2121 can be used as the end face abutting against the support body. The lower end and upper end of the second sub-block 2122 are respectively connected to the first sub-block 2121 and the third sub-block 2123, and the second sub-block 2122 is connected to the end of the reinforcing block 213 away from the first connecting block 220. The second sub-block 2122 can enhance the stability of the connection between the reinforcing block 213 and the first sub-block 2121 and the third sub-block 2123. The structural design of the first abutting block 212 is conducive to enhancing the overall strength of the first abutting block 212, can effectively resist deformation, and ensure the supporting effect on the first connecting block 220.

[0050] Reference Figure 1 , Figure 2 and Figure 3 As shown, it is understandable that the caisson device further includes a plurality of conduits 300 , which are arranged at intervals along the circumference of the casing 100 and are all connected to the outer circumference of the casing 100 , and the conduits 300 have a flow channel 310 that passes through from top to bottom.

[0051] Reference Figure 1 , Figure 2 and Figure 3 As shown, when the casing 100 has difficulty in sinking, the user can inject mud or foam through the flow channel 310 to assist the casing 100 to continue sinking, thereby ensuring that the construction is completed smoothly.

[0052] Reference Figure 1 , Figure 2 and Figure 3As shown, specifically, a plurality of conduits 300 are arranged at equal intervals around the outer circumference of the casing 100, and the first connection block 220 and the conduits 300 are arranged at intervals to avoid obstruction of the arrangement of the conduits 300 by the first connection block 220, so that the conduits 300 can extend to the lower end of the casing 100. When the user injects mud or foam through the flow channel 310, the injected mud or foam can penetrate into the bottom of the casing 100, and cooperate with the vibration of the vibrator to realize the sinking operation of the casing 100.

[0053] Reference Figure 1 , Figure 2 and Figure 3 As shown, it can be understood that the caisson device also includes a plurality of lifting rings 400, which are arranged around the cavity 110 and are all connected to the upper end of the casing 100. The external lifting equipment can lift the casing 100 through the lifting rings 400 to facilitate the transportation of the casing 100, and lift the casing 100 to the caisson position to complete the sinking construction operation of the casing 100.

[0054] Reference Figure 1 , Figure 2 and Figure 3 As shown, it can be understood that the caisson device also includes a plurality of second support blocks 510 and a plurality of second connecting blocks 520. The plurality of second connecting blocks 520 are arranged around the cavity 110 and are all fixedly connected to the lower end of the inner circumferential surface of the casing 100. The second support blocks 510 correspond one-to-one with the second connecting blocks 520. The second connecting blocks 520 have a second slot, and the second support blocks 510 can enter and exit the second slot.

[0055] Reference Figure 1 , Figure 2 and Figure 3 As shown, the caisson device further includes a plurality of second support blocks 510 and a plurality of second connection blocks 520, the plurality of second connection blocks 520 are arranged around the cavity 110 and are all fixedly connected to the lower end of the inner circumference of the casing 100, the second support blocks 510 correspond to the second connection blocks 520 one by one, the second connection blocks 520 have a second slot, and the second support blocks 510 can enter and exit the second slot. When the casing 100 needs to be used as a permanent structure, the user can connect the second support block 510 with the second slot, and pour concrete on the bottom of the cavity 110 to form a sealing layer at the bottom of the casing 100, and the second support block 510 and the second connection block 520 are arranged inside the sealing layer, so that the safety of the structure is better and safety hazards can be effectively reduced.

[0056] Reference Figure 1 , Figure 2 and Figure 3As shown, it can be understood that the multiple second connecting blocks 520 are located on the same horizontal plane, and the multiple second connecting blocks 520 are all connected to the lower end of the casing 100, and concrete is poured into the bottom of the cavity 110 to form a sealing layer at the bottom of the casing 100. The second support block 510 and the second connecting block 520 are arranged in the sealing layer, so that the structure is safer and can effectively reduce safety hazards.

[0057] Reference Figure 1 , Figure 2 and Figure 3 As shown, it can be understood that the structure of the second connecting block 520 is consistent with the structure of the first connecting block 220 , and the structure of the second supporting block 510 is consistent with the structure of the first supporting block 210 .

[0058] Reference Figure 1 , Figure 2 and Figure 3 As shown, the second slot is openly arranged downward, the second support block 510 includes a second plug-in block and a second abutment block connected to each other, the second plug-in block can be plugged into the second slot so that the second abutment block can abut against the lower end of the second connecting block 520, and the lower end of the second abutment block can abut against the soil layer at the bottom of the cavity 110, thereby limiting the sinking of the casing 100, and pouring concrete into the bottom of the cavity 110 to form a sealing layer at the bottom of the casing 100. The second support block 510 and the second connecting block 520 are arranged in the sealing layer, so that the structure is safer and can effectively reduce safety hazards.

[0059] Reference Figure 1 , Figure 2 and Figure 3 As shown, in order to enhance the supporting effect of the second support block 510, the second support block 510 includes a second reinforcing block, and the second reinforcing block is connected to the second plug-in block and the second abutment block to enhance the connection stability between the second plug-in block and the second abutment block. The second connecting block 520 is adapted to be connected with a second sliding groove connected to the second slot, and the second sliding groove is open downward so that the second reinforcing block can move in and out of the second sliding groove as the second plug-in block moves. The setting of the second sliding groove can avoid the problem of hindering the sliding of the second reinforcing block.

[0060] Reference Figure 1 , Figure 2 and Figure 3As shown, in order to further enhance the supporting effect of the second supporting block 510, the second abutting block includes a first sub-block 2121, a second sub-block 2122 and a third sub-block 2123 connected in sequence, the first sub-block 2121 and the third sub-block 2123 are parallel to each other and are respectively connected to the lower end and the upper end of the second reinforcing block, the first sub-block 2121 can abut or separate from the lower end of the second connecting block 520 as the second reinforcing block moves, and the lower end surface of the first sub-block 2121 can abut against the soil at the bottom of the cavity 110. Then, the lower end and the upper end of the second sub-block 2122 are respectively connected to the first sub-block 2121 and the third sub-block 2123, and the second sub-block 2122 is connected to the end of the second reinforcing block away from the second connecting block 520. The second sub-block 2122 can enhance the stability of the connection between the second reinforcing block and the first sub-block 2121 and the third sub-block 2123. The structural design of the second abutting block is conducive to enhancing the overall strength of the second abutting block, can effectively resist deformation, and ensure the supporting effect on the second connecting block 520.

[0061] Reference Figure 4 , Figure 5 and Figure 6 As shown, a construction method of an embodiment of the present invention is applied to the caisson device shown in any of the above embodiments. The construction method includes the following steps: Step S100, surveying and staking out the construction area to determine the location of the caisson; Step S200, hoisting the casing 100 to the caisson position, sinking the casing 100 using a vibrator, and monitoring the sinking depth of the casing 100; Step S300 , when it is necessary to pause the sinking of the casing 100 or the casing 100 is sunk into place, the caisson device is switched from the sinking state to the supporting state to limit the sinking of the casing 100 .

[0062] Reference Figure 1 , Figure 2 and Figure 4 As shown, in step S100 and step S200, the user can measure and lay out the construction area to determine the caisson position for the construction of the casing 100, and then hoist the casing 100 to the caisson position, use a vibrator to sink the casing 100, and monitor the sinking depth of the casing 100 in real time. The casing 100 can determine its diameter and wall thickness according to engineering needs and is made by processing metal materials to reduce the wall thickness and weight of the caisson device, which is beneficial to shorten the construction period and make the sinking speed of the caisson device easier to control, in order to improve the accuracy of construction.

[0063] Reference Figure 1 , Figure 2 and Figure 4As shown, in step S300, the caisson device also includes a support assembly 200, and the support assembly 200 includes a plurality of first connecting blocks 220 and a plurality of first supporting blocks 210. The plurality of first connecting blocks 220 are arranged around the cavity 110 and are all fixed to the casing 100. The first supporting blocks 210 correspond one-to-one with the first connecting blocks 220. The first supporting blocks 210 can enter and exit the first slot 221. When it is necessary to pause the sinking of the casing 100 or the casing 100 sinks into place, the caisson device can be switched to a supporting state, that is, the first supporting block 210 abuts against the first connecting block 220 and a supporting body connected to the ground to limit the sinking of the casing 100, so as to more accurately control the sinking depth and speed of the casing 100, improve the accuracy of the caisson construction, and reduce safety hazards.

[0064] Reference Figure 1 , Figure 2 and Figure 4 As shown, when the caisson device needs to sink, the caisson device can be switched to a sinking state, so that the first support block 210 is separated from the first connecting block 220, and in conjunction with the vibrator, the caisson device can be slowly and steadily sunk, making the sinking speed of the caisson device easier to control.

[0065] Reference Figure 1 , Figure 2 and Figure 4 As shown, when it is necessary to suspend the sinking of the casing 100, for example, the weather causes the operation to be unsuitable for that day, or the operation has been completed for the day and the construction workers need to rest, in order to fix the current sinking depth of the casing 100, the state of the caisson device can be switched from the sinking state to the supporting state. The casing 100 is supported by the support body and the support assembly 200, so as to fix the sinking depth of the casing 100, so as to control the sinking depth of the casing 100, which is conducive to avoiding the problem that the sliding speed of the caisson is difficult to control, which may easily cause the safety hazard that the sliding trend cannot be slowed down.

[0066] Reference Figure 1 , Figure 2 and Figure 5 As shown, it can be understood that the construction method also includes the following steps: Step S400, when the casing 100 tilts toward one side, the first support block 210 located at the tilted side of the casing 100 is connected to the first connection block 220 and a support body connected to the ground; Step S500 , sinking the casing 100 by a vibrator to correct the deviation of the casing 100 .

[0067] Reference Figure 1 , Figure 2 and Figure 5As shown, when the casing 100 tilts during the sinking process, the construction workers can connect the first support block 210 of the casing 100 close to the tilted side with the first connecting block 220 and the support body connected to the ground, that is, limit the tilted side of the casing 100 from continuing to sink, and adjust the verticality of the casing 100 by applying vibration through a vibrator, thereby realizing the correction of the casing 100.

[0068] Reference Figure 1 , Figure 2 and Figure 5 As shown, for example, when the casing 100 tilts from top to bottom to the left, the user can connect the first support block 210 on the left side of the casing 100 to the first connection block 220 and the support body connected to the ground, that is, to limit the left side of the casing 100 from continuing to sink, and adjust the verticality of the casing 100 by applying vibration through the vibrator, thereby realizing the correction of the casing 100.

[0069] Reference Figure 1 , Figure 2 and Figure 5 As shown, it can be understood that the caisson device further includes a plurality of conduits 300, which are arranged at intervals along the circumference of the casing 100 and are all connected to the outer circumferential surface of the casing 100, and the conduits 300 have a flow channel 310 that passes through from top to bottom; the construction method further includes the following steps: Step S600: When the casing 100 has difficulty in sinking, mud or foam is injected through the flow channel 310 to assist the casing 100 to continue sinking.

[0070] Reference Figure 1 , Figure 2 and Figure 5 As shown, considering that the casing 100 may have difficulty in sinking, the caisson device also includes a plurality of conduits 300, which are arranged at intervals along the circumference of the casing 100 and are all connected to the outer circumferential surface of the casing 100. The conduits 300 have a flow channel 310 that passes through from top to bottom, and the conduits 300 and the first connecting block 220 are arranged at intervals, which is conducive to allowing the conduits 300 to extend to the lower end of the casing 100, avoiding obstruction of the arrangement of the conduits 300 by the first connecting block 220. When the casing 100 has difficulty in sinking, the user can inject mud or foam through the flow channel 310 to assist the casing 100 to continue sinking, thereby ensuring smooth completion of the construction.

[0071] Reference Figure 1 , Figure 2 and Figure 6As shown, it can be understood that the caisson device further includes a plurality of second support blocks 510 and a plurality of second connection blocks 520, the first connection block 220 is connected to the outer circumferential surface of the casing 100, the plurality of second connection blocks 520 are arranged around the cavity 110 and are all fixedly connected to the lower end of the inner circumferential surface of the casing 100, the second support blocks 510 correspond to the second connection blocks 520 one by one, the second connection blocks 520 have a second slot, and the second support blocks 510 can enter and exit the second slot; Reference Figure 1 , Figure 2 and Figure 6 As shown, in step S300, when it is necessary to suspend the sinking of the casing 100 or the casing 100 is sunk into place, the caisson device is switched from the sinking state to the supporting state, including the following steps: Step S310, when the casing 100 sinks into place and the caisson device switches to the supporting state, the second supporting block 510 is connected to the second connecting block 520; Step S320 , pouring concrete into the bottom of the cavity 110 to form a sealing layer at the bottom of the casing 100 , and the second support block 510 and the second connection block 520 are disposed inside the sealing layer.

[0072] Reference Figure 1 , Figure 2 and Figure 6 As shown, the first connecting block 220 is connected to the outer peripheral surface of the casing 100, that is, the support assembly 200 can be arranged on the outer periphery of the casing 100, the lower end of the support body can abut against the ground, and the upper end can support the casing 100 through the support assembly 200 to limit the sinking of the casing 100, which can avoid the problem that the support body is arranged in the cavity 110 and hinders soil excavation.

[0073] The caisson device also includes a plurality of second support blocks 510 and a plurality of second connecting blocks 520. The plurality of second connecting blocks 520 are arranged around the cavity 110 and are all fixedly connected to the inner circumference of the casing 100. The second support blocks 510 correspond to the second connecting blocks 520 one by one. The second connecting blocks 520 have a second slot. The second support blocks 510 can enter and exit the second slot. When the casing 100 needs to be used as a permanent structure, the user can connect the second support block 510 to the second slot and pour concrete on the bottom of the cavity 110 to form a sealing layer at the bottom of the casing 100. The second support blocks 510 and the second connecting blocks 520 are arranged in the sealing layer, so that the structure is safer and can effectively reduce safety hazards.

[0074] Reference Figure 1 , Figure 2 and Figure 6As shown, when the casing 100 is used as a permanent structure and does not need to be pulled out, the caisson device can be installed with a second support block 510 and a second connecting block 520, so that the second support block 510 is buried in the bottom concrete. The second support block 510 is combined with the bottom concrete to be used as a permanent structure, which can greatly improve the stability of the caisson device.

[0075] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A caisson device, characterized in that: include: The casing (100) has a cavity (110) that passes through the casing from top to bottom; A support assembly (200), comprising a plurality of first connection blocks (220) and a plurality of first support blocks (210), wherein the plurality of first connection blocks (220) are arranged around the cavity (110) and are all fixedly connected to the casing (100), the first support blocks (210) correspond to the first connection blocks (220) one by one, the first connection blocks (220) have a first slot (221), and the first support blocks (210) can enter and exit the first slot (221); The caisson device has a supporting state and a sinking state. The supporting state is that the first supporting block (210) is in contact with the first connecting block (220) and a supporting body connected to the ground to limit the sinking of the casing (100); the sinking state is that the first supporting block (210) is separated from the first connecting block (220).

2. The caisson device according to claim 1, characterized in that: The first slot (221) is open downwardly, and the first supporting block (210) comprises a first plug-in block (211) and a first abutment block (212) connected to each other, the first plug-in block (211) can enter and exit the first slot (221), and the first abutment block (212) can abut against or separate from the lower end of the first connecting block (220).

3. The caisson device according to claim 2, characterized in that: The first connecting block (220) is connected to a first sliding groove (222) communicating with the first slot (221); the first sliding groove (222) is open downward; the first supporting block (210) further comprises a reinforcing block (213); the reinforcing block (213) is connected to the first plug-in block (211) and the first abutting block (212); the reinforcing block (213) is capable of entering and exiting the first sliding groove (222).

4. The caisson device according to claim 3, characterized in that: The first abutting block (212) comprises a first sub-block (2121), a second sub-block (2122) and a third sub-block (2123) which are connected in sequence, the first sub-block (2121) and the third sub-block (2123) are parallel to each other and are respectively connected to the lower end and the upper end of the reinforcing block (213), the first sub-block (2121) can abut against or separate from the first connecting block (220), the lower end and the upper end of the second sub-block (2122) are respectively connected to the first sub-block (2121) and the third sub-block (2123), and the second sub-block (2122) is connected to the end of the reinforcing block (213) away from the first connecting block (220).

5. The caisson device according to claim 1, characterized in that: The invention also comprises a plurality of conduits (300), wherein the plurality of conduits (300) are arranged at intervals along the circumference of the protective tube (100) and are all connected to the outer circumferential surface of the protective tube (100), the conduits (300) and the first connecting block (220) are arranged at intervals, and the conduits (300) have a flow channel (310) that passes through the conduits from top to bottom.

6. The caisson device according to claim 1, characterized in that: It also includes a plurality of lifting rings (400), which are arranged around the cavity (110) and are all connected to the upper end of the casing (100).

7. The caisson device according to claim 1, characterized in that: It also includes a plurality of second support blocks (510) and a plurality of second connection blocks (520), wherein the first connection block (220) is connected to the outer peripheral surface of the protective tube (100), and the plurality of second connection blocks (520) are arranged around the cavity (110) and are all fixedly connected to the inner peripheral surface of the protective tube (100), and the second support blocks (510) correspond one to one with the second connection blocks (520), and the second connection blocks (520) have a second slot, and the second support blocks (510) can enter and exit the second slot.

8. A construction method, characterized in that: Applicable to the caisson device according to any one of claims 1 to 7; the construction method comprises: Survey and stake out the construction area to determine the location of the caisson; hoisting the casing (100) to the caisson location, sinking the casing (100) using a vibrator, and monitoring the sinking depth of the casing (100); When it is necessary to suspend the sinking of the casing (100) or the casing (100) is sunk into place, the caisson device is switched from the sinking state to the supporting state to limit the sinking of the casing (100).

9. The construction method according to claim 8, characterized in that: The construction method also includes: When the casing (100) tilts toward one side, the first support block (210) located on the tilted side of the casing (100) is connected to the first connection block (220) and a support body connected to the ground; The casing (100) is sunk by the vibrator to correct the deviation of the casing (100).

10. The construction method according to claim 8, characterized in that: The caisson device further comprises a plurality of second support blocks (510) and a plurality of second connection blocks (520), wherein the first connection blocks (220) are connected to the outer circumferential surface of the casing (100), the plurality of second connection blocks (520) are arranged around the cavity (110) and are all fixedly connected to the lower end of the inner circumferential surface of the casing (100), the second support blocks (510) correspond to the second connection blocks (520) one by one, the second connection blocks (520) have a second slot, and the second support blocks (510) can enter and exit the second slot; When it is necessary to pause the sinking of the casing (100) or the casing (100) is sunk into place, switching the caisson device from the sinking state to the supporting state comprises: When the casing (100) sinks into place and the caisson device switches to the supporting state, the second supporting block (510) is connected to the second connecting block (520); Concrete is poured into the bottom of the cavity (110) to form a sealing layer at the bottom of the casing (100), and the second support block (510) and the second connection block (520) are arranged inside the sealing layer.

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