Caisson structure, caisson template structure and caisson construction method

Abstract

The invention relates to the field of caissons, in particular to a caisson structure, a caisson formwork structure and a caisson construction method.The caisson structure comprises a bottom plate, side plates and partition plates are arranged on the bottom plate, a plurality of caisson inner bins are defined by the bottom plate, the side plates and the partition plates, first slope parts are arranged at the joints of the side plates and the bottom plate, and second slope parts are arranged at the joints of the side plates and the bottom plate; a first slope part is arranged at the joint of the partition plate and the bottom plate and faces the corresponding caisson inner bin, a second slope part is arranged at the joint of the partition plate and the bottom plate and faces the corresponding caisson inner bin, due to the design of the slope parts, the joint of the bottom plate, the side plate and the partition plate is smoother, and the area of the joint is increased; water flow is in contact with the slope part after being poured into the inner bin, part of the water flow can flow to the bottom along the slope part and can be evenly distributed at the bottom of the inner bin, stress concentration caused by too high local water flow speed is avoided, and therefore the risk of structural damage is reduced.

Description

Technical Field

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

[0002] Caisson is a precast concrete structure used in hydraulic structures, foundation engineering and underground structures. During its construction, a formwork system is required to form a pouring space. During the caisson construction process, the design of the bottom formwork is crucial. A reasonable base structure can not only provide stable support, but also ensure the accuracy and quality of concrete pouring.

[0003] The existing caisson inner compartment is composed of a bottom plate, a partition and a side plate. However, the angles at the joints of the bottom plate and the side plate, as well as the angles at the joints of the bottom plate and the partition, tend to be 90°, which are set at right angles. When the caisson is launched into the water and water flows into the inner compartment, the water flows at the right angles to form a strong impact force and generate eddies, which increase the local water flow velocity and generate local stress concentration at the joints, thereby causing deformation or damage to the structure. Summary of the invention

[0004] The purpose of the present invention is to provide a caisson structure, a caisson template structure and a caisson construction method thereof to address the problem that the angles at the joints between the bottom plate and the side plate, as well as the angles at the joints between the bottom plate and the partition plate of the existing caisson in the prior art are both close to 90 degrees and are arranged at right angles, so that after water flows into the inner compartment, eddy currents will be generated at the angles, causing damage to the caisson structure.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] In a first aspect, a caisson structure comprises a bottom plate, a side plate and a partition plate are arranged on the bottom plate, the bottom plate, the side plate and the partition plate enclose a plurality of caisson inner compartments, a first slope portion is arranged at a junction of the side plate and the bottom plate, and the first slope portion is arranged toward the corresponding caisson inner compartment;

[0007] A second slope portion is provided at the junction of the partition plate and the bottom plate, and the second slope portion is arranged toward the corresponding inner compartment of the caisson.

[0008] In the present application, the first slope portion facing the corresponding inner warehouse of the caisson means that the first slope portion arranged at the junction of the bottom plate and the side plate should face the inner warehouse of the caisson surrounded by the bottom plate, the side plate and the partition plate, and the second slope portion facing the corresponding inner warehouse of the caisson means that the second slope portion arranged at the junction of the bottom plate and the partition plate should face the inner warehouse of the caisson surrounded by the bottom plate, the side plate and the partition plate.

[0009] The present invention is a caisson structure, wherein the caisson is formed by splicing a bottom plate and a side plate, and a partition is arranged in a space surrounded by the side plates, and the space is divided into a plurality of caisson inner chambers by the partition, and a first slope portion is arranged at the junction of the side plate and the bottom plate, and the first slope portion is arranged toward the caisson inner chamber, and a second slope portion is also arranged at the junction of the partition and the bottom plate, and the second slope portion is also arranged toward the caisson inner chamber, and the design of the slope portion makes the junction of the bottom plate, the side plate and the partition plate smoother, and increases the area of ​​the junction After the water flows into the inner bin, it contacts the slope. Part of the water can flow to the bottom along the slope and can be evenly distributed at the bottom of the inner bin, avoiding stress concentration caused by excessive local water flow speed, thereby reducing the risk of structural damage; and when another part of the water flows directly into the bottom of the inner bin, due to the increase in the area of ​​the connection between the side wall of the inner bin and the bottom, the contact area between the connection between the side wall of the inner bin and the bottom and the water body increases, reducing the pressure caused by the water body on the connection, improving the structural stability of the caisson, and avoiding damage to the caisson.

[0010] As a preferred solution of the present invention, the angle between the slope surface of the first slope portion and the bottom plate ranges from 120° to 135°.

[0011] As a preferred solution of the present invention, the angle between the slope surface of the first slope portion and the side plate is in the range of 120°-135°.

[0012] As a preferred solution of the present invention, the angle between the slope surface of the second slope portion and the bottom plate ranges from 120° to 135°.

[0013] As a preferred solution of the present invention, the angle between the slope surface of the second slope portion and the partition is in the range of 120°-135°.

[0014] As a preferred solution of the present invention, the first slope portion and the second slope portion are arranged at a height of 20-50 cm.

[0015] As a preferred solution of the present invention, a third slope portion is provided on a side of the side plate away from the first slope portion, and the third slope portion is used to connect the side plate and the bottom plate.

[0016] A third slope portion is provided on a side of the side plate away from the first slope portion, and the third slope portion is respectively connected to the side plate and the bottom plate; thus, the bottom of the entire caisson becomes wider, and when the caisson body is placed, the contact area with the riverbed or the ground is increased, thereby improving the structural stability of the caisson.

[0017] In a second aspect, a caisson template structure is used to manufacture the above-mentioned caisson structure, comprising an outer mold, wherein a plurality of core molds are arranged at intervals in the space surrounded by the outer mold;

[0018] Two adjacent core molds are connected;

[0019] Each of the core molds is connected to the outer mold, and the outer mold and the core mold are used in conjunction with each other to cast and form a caisson structure.

[0020] The present invention is a caisson formwork structure, which forms an overall force system by connecting adjacent core forms, thereby enhancing the stability of the formwork structure, being able to effectively resist the lateral pressure generated during concrete pouring, and reducing the risk of formwork expansion.

[0021] As a preferred solution of the present invention, the core mold includes a first core mold and a second core mold, and the second core mold is located above the first core mold;

[0022] The first core mold includes a support frame, the support frame is a through-length structure, and a sloping plate is provided on a side of the support frame facing the outer mold;

[0023] The inclined plate cooperates with the outer mold to cast to form the first slope portion;

[0024] The inclined plates of two adjacent first core molds are cast in cooperation to form the second slope portion.

[0025] By dividing the core mold into a first core mold and a second core mold, the core mold can be constructed in steps when it is disassembled and transported. Compared with the traditional method of dismantling and transporting the entire core mold, the present application reduces the volume and weight of the bottom mold in a single transportation, which is convenient for on-site disassembly and transportation; and the first core mold includes a support frame, which provides supporting force so that the first core mold can provide support for the second core mold. The first core mold is provided with an inclined plate on the side facing the outer mold. When the core mold is connected to the outer mold and cast, the cavity between the inclined plate and the outer mold can be cast into a first slope portion, and the second slope portion can be cast between two adjacent core molds through the inclined plate.

[0026] As a preferred embodiment of the present invention, the second core mold includes a fixing frame, which includes a plurality of vertical bars and a horizontal bar mounted on the vertical bars. Both ends of the horizontal bar are detachably connected to a main mold, and the main mold is used for casting to form the side panels and the partition.

[0027] By setting up a fixing frame, the connection between the first core mold and the second core mold is made more stable, and the fixing frame includes a vertical rod connected to the first core mold, and also includes a cross rod arranged perpendicular to the vertical rod. The fixing frame is connected to the main mold through the cross rod, and the side plate is cast through the cavity formed by the main mold and the outer mold, and the cavity between the main molds of adjacent core molds is used to cast the partition.

[0028] As a preferred solution of the present invention, a plurality of telescopic members are provided on the fixing frame, one end of the telescopic member is connected to the main template, and the other end is connected to the fixing frame.

[0029] The main formwork and the fixed frame are detachably connected, and a telescopic rod is provided between the main formwork and the fixed frame. During construction, the connection between the cross bar and the main formwork can be removed, and the horizontal movement of the main formwork is controlled by driving the telescopic rod to adjust the thickness of the side panels and partitions before pouring.

[0030] As a preferred embodiment of the present invention, the telescopic member includes a sleeve, one end of the sleeve is threadedly connected to a first connecting portion, the sleeve is connected to the fixed frame via the first connecting portion, the other end of the sleeve is threadedly connected to a second connecting portion, the sleeve is connected to the main template via the second connecting portion.

[0031] The sleeve is threadedly connected to the first connection part and the second connection part. Since the first connection part is connected to the main template and the second connection part is connected to the fixed frame, and the position of the fixed frame does not change, the construction workers can move the main template by twisting the sleeve.

[0032] As a preferred solution of the present invention, a limiting portion is provided on the fixing frame, and the limiting portion includes a main rod, one end of the main rod is connected to the fixing frame, and the other end is provided with a limiting piece, and the limiting piece is configured to be movable along the length direction of the main rod.

[0033] By setting the limiter, after the main template is moved horizontally, the limiter can be twisted to make it contact with the main template to prevent the main template from shrinking; during the concrete pouring process, the use of the vibrating rod will cause micro-vibration of the template. If there is no limiter, the main template may gradually shrink due to continuous vibration, causing the template position to shift and affecting the pouring accuracy. The limiter can provide sufficient contact force to eliminate the impact of vibration on the position of the main template and ensure that the template remains in the set position.

[0034] As a preferred embodiment of the present invention, the outer mold comprises a web and a bottom mold, a connecting plate is provided between the top of the bottom mold and the bottom of the web, the connecting plate is inclined, one end of the connecting plate higher than the ground is connected to the web, and the other end is connected to the bottom mold;

[0035] The connecting plate is used for casting to form the third slope portion.

[0036] By setting the outer mold in the form of a web plus a bottom mold, and connecting the bottom mold and the web as a whole through a connecting plate, and the end of the connecting plate that is higher than the ground is connected to the web, the structural stability of the outer mold is improved, and the connecting plate is set at an angle, so that when the subsequent outer mold and the core mold are matched for casting, a third slope portion can be formed during casting through the connecting plate.

[0037] In a third aspect, a caisson construction method adopts the above-mentioned caisson template structure, and the method comprises:

[0038] S1, construct and lay the bottom tire mold, place columns on the bottom tire mold at intervals, then place the first core mold on the column, install the second core mold on the first core mold, and finally install the outer mold;

[0039] S2, pouring concrete to the top of the base plate;

[0040] S3, pouring concrete to the top of the first core mold;

[0041] S4. Pour concrete to the top of the second core mold.

[0042] The present invention discloses a caisson construction method, which avoids problems such as temperature stress and shrinkage cracks caused by one-time large-volume concrete pouring by performing multiple pouring in stages, thereby reducing construction risks and ensuring the integrity and durability of the concrete structure; and layered pouring helps to control the height and flatness of each layer of concrete, ensuring that no deviation occurs during the pouring process, reducing problems such as segregation and water seepage caused by excessive one-time pouring height, and improving the overall construction accuracy of the caisson; and staged construction reduces the workload of a single construction, reduces construction intensity and the risk of high-altitude operations, reduces the potential safety hazards to personnel caused by rapid concrete pouring, and improves the safety of on-site operations.

[0043] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0044] 1. The present invention is a caisson structure, which is formed by splicing a bottom plate and a side plate, and a partition is arranged in the space surrounded by the side plates, and the space is divided into a plurality of caisson inner chambers by the partition, and a first slope is arranged at the junction of the side plate and the bottom plate, and the first slope is arranged toward the caisson inner chamber, and a second slope is also arranged at the junction of the partition and the bottom plate, and the second slope is also arranged toward the caisson inner chamber, and the design of the slope makes the junction of the bottom plate, the side plate and the partition smoother, and makes the area of ​​the junction larger. Increased, after the water flows into the inner bin and contacts the slope, part of the water can flow along the slope to the bottom and can be evenly distributed at the bottom of the inner bin, avoiding stress concentration caused by excessive local water flow speed, thereby reducing the risk of structural damage; and when another part of the water flows directly into the bottom of the inner bin, due to the increase in the area of ​​the connection between the side wall of the inner bin and the bottom, the contact area between the connection between the side wall of the inner bin and the bottom and the water body is increased, reducing the pressure caused by the water body on the connection, improving the structural stability of the caisson, and avoiding damage to the caisson.

[0045] 2. The present invention is a caisson formwork structure, which forms an overall force system by connecting adjacent core molds, thereby enhancing the stability of the formwork structure, being able to effectively resist the lateral pressure generated during concrete pouring, and reducing the risk of mold expansion.

[0046] 3. The present invention is a caisson construction method, which avoids problems such as temperature stress and shrinkage cracks caused by one-time large-volume concrete pouring by pouring multiple times in stages, thereby reducing construction risks and ensuring the integrity and durability of the concrete structure; and layered pouring helps to control the height and flatness of each layer of concrete, ensuring that there is no deviation during the pouring process, reducing problems such as segregation and water seepage caused by excessive pouring height at one time, and improving the overall construction accuracy of the caisson; and staged construction reduces the workload of a single construction, reduces construction intensity and the risk of high-altitude operations, reduces the potential safety hazards to personnel caused by rapid concrete pouring, and improves the safety of on-site operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 is a schematic cross-sectional view of the caisson structure of the present invention;

[0048] Figure 2 is a schematic diagram of the caisson template structure of the present invention;

[0049] Figure 3 It is a structural schematic diagram of the core mold of the present invention;

[0050] Figure 4 The present invention Figure 3 A magnified image;

[0051] Figure 5 It is a schematic diagram of the telescopic member structure of the present invention;

[0052] Figure 6 is a top view of the connection between the fixing frame and the limiting member of the present invention;

[0053] Figure 7 The present invention Figure 6 The enlarged view of point B;

[0054] Figure 8 It is a structural schematic diagram of the outer mold of the present invention;

[0055] Fig. 9 It is a flow chart of the construction method of the caisson of the present invention.

[0056] Icons: 1-bottom plate; 2-side plate; 3-partition plate; 4-first slope portion; 5-second slope portion; 6-third slope portion; 7-core mold; 71-first core mold; 711-support frame; 712-inclined plate; 72-second core mold; 721-fixed frame; 7211-vertical rod; 7212-cross rod; 722-main mold; 8-outer mold; 81-web plate; 82-bottom mold; 83-connecting plate; 9-telescopic member; 91-sleeve; 92-first connecting portion; 93-second connecting portion; 10-limiting portion; 101-main rod; 102-limiting member. DETAILED DESCRIPTION

[0057] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0058] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating the orientation or position relationship such as "upper", "lower", "left", "right", "center", "inside", "outside", etc. are based on the orientation or position relationship when the invented product / equipment / device is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the present invention or simplifying the description in the specific embodiments to facilitate the technicians to quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation of the present invention.

[0059] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present invention.

[0060] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0061] In addition, in the description of the embodiments of the present invention, "several", "plurality" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0062] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0063] Example 1

[0064] like Figure 1 A caisson structure shown in the figure includes a bottom plate 1, and four side plates 2 are vertically arranged above the bottom plate 1, and a plurality of partitions 3 are arranged in the space surrounded by the four side plates 2, and a plurality of caisson inner chambers are divided in the space by the partitions 3, and the caisson inner chamber includes a first slope portion and a second slope portion, the first slope portion is arranged at the junction of the side plate and the bottom plate, and the slope surface is arranged toward the caisson inner chamber, and the second slope portion is arranged at the junction of the partition plate and the bottom plate, and the slope surface of the second slope portion is arranged toward the caisson inner chamber, so that the first slope portion and the second slope portion are both located in the caisson The bottom area of ​​the inner bin guides the water flow through the first slope and the second slope when the water flows into the inner bin of the caisson, so that part of the water flow can flow smoothly into the bottom along the first slope and the second slope. When the other part of the water flow directly poured into the bottom of the inner bin flows or fills the bottom of the bin, pressure is applied to the joints between the side plates and the bottom plate and between the partition plate and the bottom plate in the inner bin, and the area of ​​each joint is increased, which can increase the contact area between the joint and the water body, thereby reducing the pressure applied by the water body on the joint, thereby reducing the pressure at the joint and avoiding damage to the caisson;

[0065] Optionally, the partition 3 is configured as a transverse partition and / or a longitudinal partition.

[0066] In one or more embodiments, the angle between the slope surface of the first slope portion 4 and the bottom plate 1 is in the range of 120°-135°.

[0067] In one or more embodiments, the angle between the slope surface of the first slope portion 4 and the side plate 2 is in the range of 120°-135°.

[0068] In one or more embodiments, the angle between the slope surface of the second slope portion 5 and the bottom plate 1 is in the range of 120°-135°.

[0069] In one or more embodiments, the angle between the slope surface of the second slope portion 5 and the partition plate 3 is in the range of 120°-135°.

[0070] In one or more embodiments, the first slope portion 4 and the second slope portion 5 are arranged at a height of 20-50 cm.

[0071] In one or more embodiments, a third slope portion 6 is provided on a side of the side panel 2 away from the first slope portion 4, and the third slope portion 6 is used to connect the side panel 2 and the bottom panel 1. By providing the third slope portion 6 on a side of the side panel 2 away from the first slope portion 4, and the third slope portion 6 is respectively connected to the side panel 2 and the bottom panel 1; in this way, the bottom of the entire caisson becomes wider, and when the caisson body is placed, the contact area with the riverbed or the ground is increased, thereby improving the structural stability of the caisson. Figure 1 shown.

[0072] Example 2

[0073] like Figure 2 and Figure 3 A caisson template structure shown is used to manufacture a caisson structure of Example 1, comprising an outer mold 8, wherein a plurality of core molds 7 are arranged at intervals in the space surrounded by the outer mold 8;

[0074] Two adjacent core molds 7 are connected;

[0075] Each of the core molds 7 is connected to the outer mold 8, and the outer mold 8 cooperates with the core mold 7 to cast and form a caisson structure;

[0076] Furthermore, the core mold 7 includes a first core mold 71 and a second core mold 72, and the second core mold 72 is located above the first core mold 71;

[0077] The first core mold 71 includes a support frame 711, the support frame 711 is a through-length structure, and a side of the support frame 711 facing the outer mold 8 is provided with an inclined plate 7111;

[0078] The inclined plate 7111 cooperates with the outer mold 8 to cast and form the first slope portion 4;

[0079] The inclined plates 7111 of the two adjacent first core molds 71 ​​cooperate to cast and form the second slope portion 5. By dividing the core mold 7 into the first core mold 71 and the second core mold 72, the core mold 7 can be constructed in steps when it is disassembled and transported. Compared with the traditional method of dismantling and transporting the entire core mold 7, the present application reduces the volume and weight of the bottom mold in a single transportation, which is convenient for on-site disassembly and transportation; and the first core mold 71 includes a support frame 711, and the support frame 711 provides supporting force, so that the first core mold 71 can provide support for the second core mold 72. The first core mold 71 is provided with an inclined plate 7111 on the side facing the outer mold 8. When the core mold 7 is connected to the outer mold 8 and cast, the cavity between the inclined plate 7111 and the outer mold 8 can be cast as the first slope portion 4, and the second slope portion 5 can be cast between the two adjacent core molds 7 through the inclined plate 7111.

[0080] In one or more embodiments, the second core mold 72 includes a fixing frame 721, and the fixing frame 721 includes a plurality of vertical rods 7211 and a horizontal rod 7212 erected on the vertical rods 7211. Both ends of the horizontal rods 7212 are detachably connected with main templates 722. The main template 722 is used to cast and form the side panels 2 and the partitions 3. The fixing frame 721 is provided to make the connection between the first core mold 71 and the second core mold 72 more stable, and the fixing frame 721 includes a vertical rod 7211 connected to the first core mold 71, and also includes a horizontal rod 7212 vertically arranged with the vertical rod 7211. The fixing frame 721 is connected to the main template 722 through the horizontal rod 7212, and the side panels 2 are cast through the cavity formed by the main template 722 and the outer mold 8, and the cavity between the main templates 722 of adjacent core molds 7 is used to cast the partitions 3. Figure 2 and Figure 3 shown.

[0081] In one or more embodiments, the fixing frame 721 is provided with a plurality of telescopic members 9, one end of the telescopic member 9 is connected to the main template 722, and the other end is connected to the fixing frame 721, the main template 722 and the fixing frame 721 are detachably connected, and a telescopic rod is provided between the main template 722 and the fixing frame 721, and the connection between the cross bar 7212 and the main template 722 can be removed during construction, and the horizontal movement of the main template 722 is controlled by driving the telescopic rod, so as to adjust the thickness of the side plate 2 and the partition 3 before casting;

[0082] Further, the telescopic member 9 includes a sleeve 91, one end of which is threadedly connected to a first connecting portion 92, and the sleeve 91 is connected to the fixing frame 721 through the first connecting portion 92, and the other end of the sleeve 91 is threadedly connected to a second connecting portion 93, and the sleeve 91 is connected to the main template 722 through the second connecting portion 93. The sleeve 91 is threadedly connected to the first connecting portion 92 and the second connecting portion 93. Since the first connecting portion 92 is connected to the main template 722, and the second connecting portion 93 is connected to the fixing frame 721, and the position of the fixing frame 721 is not changed, the construction personnel can drive the main template 722 to move by twisting the sleeve 91, such as Figure 3 , Figure 4 and Figure 5 As shown;

[0083] Optionally, mounting parts are provided at both ends of the main formwork 722, and the main formwork 722 is enclosed by the mounting parts. After the main formwork 722 is horizontally moved by the telescopic part 9, a gap will appear between the main formworks 722 that were previously enclosed as a whole. The moved main formwork 722 can be enclosed again by setting the mounting parts. The mounting parts include slide grooves arranged at the ends of the two ends of the main formwork 722, and the slide grooves are arranged along the height direction of the main formwork 722. The mounting parts also include L-shaped plates. When the main formwork 722 is moved, the two ends of the L-shaped plates can be inserted into the adjacent slide grooves between different main formworks 722, so that the gap can be filled by the L-shaped plates, thereby achieving that the main formwork 722 can still be enclosed into the second core mold 72 by the mounting parts after moving, and the gap can also be filled to prevent concrete from seeping in during subsequent pouring, resulting in difficulty in forming the inner bin of the caisson.

[0084] In one or more embodiments, a limiting portion 10 is provided on the fixing frame 721, and the limiting portion 10 includes a main rod 101, one end of the main rod 101 is connected to the fixing frame 721, and the other end is provided with a limiting member 102, and the limiting member 102 is configured to be movable along the length direction of the main rod 101. By setting the limiting portion 10, after the main template 722 realizes horizontal movement, the limiting member 102 can be screwed to make it abut against the main template 722 to prevent the main template 722 from shrinking; during the concrete pouring process, the use of the vibrating rod will cause micro-vibration of the template. If there is no limiting measure, the main template 722 may gradually shrink due to continuous vibration, resulting in the template position shift, affecting the pouring accuracy. The limiting member 102 can provide sufficient abutment force to eliminate the influence of vibration on the position of the main template 722, ensuring that the template remains in the set position, such as Figure 6 and Figure 7 shown.

[0085] In one or more embodiments, the outer mold 8 includes a web 81 and a bottom template 82, and a connecting plate 83 is provided between the top of the bottom template 82 and the bottom of the web 81. The connecting plate 83 is inclined, and one end of the connecting plate 83 higher than the ground is connected to the web 81, and the other end is connected to the bottom template 82. The connecting plate 83 is used to cast and form the third slope portion 6. By setting the outer mold 8 in the form of a web 81 plus a bottom template 82, and connecting the bottom template 82 and the web 81 as a whole through the connecting plate 83, and the end of the connecting plate 83 higher than the ground is connected to the web 81, the structural stability of the outer mold 8 is improved, and the connecting plate 83 is inclined, so that when the subsequent outer mold 8 and the core mold 7 are matched for casting, the third slope portion 6 can be formed during casting through the connecting plate 83, such as Figure 8 shown.

[0086] Example 3

[0087] like Fig. 9 A caisson construction method is shown, using a caisson template structure of Example 2, and the method includes:

[0088] S1, construct and lay the bottom tire mold, place columns on the bottom tire mold at intervals, then place the first core mold 71 on the columns, and install the second core mold 72 on the first core mold 71, and finally install the outer mold 8;

[0089] S2, pouring concrete to the top of the base plate 1;

[0090] S3, pouring concrete to the top of the first core mold 71;

[0091] S4, pouring concrete to the top of the second core mold 72.

[0092] By carrying out multiple pouring in stages, problems such as temperature stress and shrinkage cracks caused by one-time large-volume concrete pouring can be avoided, thereby reducing construction risks and ensuring the integrity and durability of the concrete structure; and layered pouring helps to control the height and flatness of each layer of concrete, ensuring that there is no deviation during the pouring process, reducing problems such as segregation and seepage caused by excessive pouring height at one time, and improving the overall construction accuracy of the caisson; and phased construction reduces the workload of a single construction, reduces construction intensity and the risk of high-altitude operations, reduces personnel safety hazards caused by rapid concrete pouring, and improves on-site operation safety.

[0093] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A caisson structure, comprising a bottom plate (1), on which a side plate (2) and a partition plate (3) are arranged, wherein the bottom plate (1), the side plate (2) and the partition plate (3) enclose a plurality of caisson inner compartments, characterized in that: A first slope portion (4) is provided at the junction of the side plate (2) and the bottom plate (1), and the first slope portion (4) is arranged toward the corresponding inner bin direction of the caisson; A second slope portion (5) is provided at the junction of the partition plate (3) and the bottom plate (1), and the second slope portion (5) is arranged toward the corresponding inner compartment of the caisson.

2. A caisson structure according to claim 1, characterized in that: A third slope portion (6) is provided on a side of the side plate (2) away from the first slope portion (4), and the third slope portion (6) is used to connect the side plate (2) and the bottom plate (1).

3. A caisson template structure, characterized in that: Used to manufacture a caisson structure as claimed in any one of claims 1 to 2, comprising an outer mold (8), wherein a plurality of core molds (7) are arranged at intervals in the space surrounded by the outer mold (8); Two adjacent core molds (7) are connected; Each of the core molds (7) is connected to the outer mold (8), and the outer mold (8) cooperates with the core mold (7) to cast and form the caisson structure.

4. The caisson formwork structure according to claim 3, characterized in that: The core mold (7) comprises a first core mold (71) and a second core mold (72), wherein the second core mold (72) is located above the first core mold (71); The first core mold (71) comprises a support frame (711), the support frame (711) is a through-length structure, and a sloping plate (7111) is provided on a side of the support frame (711) facing the outer mold (8); The inclined plate (7111) cooperates with the outer mold (8) to cast to form the first inclined portion (4); The inclined plates (7111) of two adjacent first core molds (71) are cast together to form the second slope portion (5).

5. The caisson formwork structure according to claim 4, characterized in that: The second core mold (72) includes a fixed frame (721), and the fixed frame (721) includes a plurality of vertical rods (7211) and a cross rod (7212) mounted on the vertical rods (7211). Both ends of the cross rod (7212) are detachably connected to a main mold (722), and the main mold (722) is used for casting to form the side panels (2) and the partition (3).

6. The caisson formwork structure according to claim 5, characterized in that: A plurality of telescopic members (9) are provided on the fixing frame (721), one end of the telescopic member (9) is connected to the main template (722), and the other end is connected to the fixing frame (721).

7. The caisson formwork structure according to claim 6, characterized in that: The telescopic member (9) comprises a sleeve (91), one end of the sleeve (91) is threadedly connected to a first connecting portion (92), the sleeve (91) is connected to the fixing frame (721) via the first connecting portion (92), and the other end of the sleeve (91) is threadedly connected to a second connecting portion (93), the sleeve (91) is connected to the main template (722) via the second connecting portion (93).

8. The caisson formwork structure according to claim 7, characterized in that: The fixing frame (721) is provided with a limiting portion (10), and the limiting portion (10) comprises a main rod (101), one end of the main rod (101) is connected to the fixing frame (721), and the other end is provided with a limiting member (102), and the limiting member (102) is configured to be movable along the length direction of the main rod (101).

9. The caisson formwork structure according to claim 8, characterized in that: The outer mold (8) comprises a web (81) and a bottom mold plate (82); a connecting plate (83) is provided between the top of the bottom mold plate (82) and the bottom of the web (81); the connecting plate (83) is arranged obliquely; one end of the connecting plate (83) which is higher than the ground is connected to the web (81), and the other end is connected to the bottom mold plate (82).

10. A caisson construction method, characterized in that: Using a caisson template structure as claimed in any one of claims 3 to 9, the method comprises: S1, construct and lay the bottom tire mold, place columns on the bottom tire mold at intervals, then place the first core mold (71) on the columns, and install the second core mold (72) on the first core mold (71), and finally install the outer mold (8); S2, pouring concrete to the top of the base plate (1); S3, pouring concrete to the top of the first core mold (71); S4, pouring concrete to the top of the second core mold (72).

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