CN214940288U - Anti-floating and anti-sinking steel pile casing and cofferdam - Google Patents
Anti-floating and anti-sinking steel pile casing and cofferdam Download PDFInfo
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- CN214940288U CN214940288U CN202120572008.0U CN202120572008U CN214940288U CN 214940288 U CN214940288 U CN 214940288U CN 202120572008 U CN202120572008 U CN 202120572008U CN 214940288 U CN214940288 U CN 214940288U
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Abstract
The application relates to an anti-floating and anti-sinking steel casing and cofferdam, which relates to the technical field of bridge construction and construction, and comprises a steel casing body, a fixed connecting piece, a tension and compression rod, an anti-floating bracket and an anti-sinking bracket, wherein the tension and compression rod has larger rigidity in the anti-floating and anti-sinking of the cofferdam under the wave condition and can be used as a main force transmission component which can effectively transmit the huge floating force of water to the anti-floating bracket and transmit the huge vertical load in the construction process of a bearing platform to the anti-sinking bracket, namely, the anti-floating bracket and the anti-sinking bracket respectively consume part of the upper buoyancy and the vertical load, thereby reducing the floating force and the sinking force borne by the cofferdam, leading the self weight of the steel casing structure and the bottom sealing concrete of the cofferdam to resist smaller buoyancy and the gripping force between the bottom sealing concrete and the steel casing of the pile foundation to resist smaller sinking force, and ensuring the stability of the cofferdam, the problems of floating of the cofferdam and inclination of the construction bearing platform are avoided, and the safety of the construction process is improved.
Description
Technical Field
The application relates to the technical field of bridge construction, in particular to an anti-floating and anti-sinking steel pile casing and cofferdam.
Background
In the bridge foundation construction, when the bridge pier and the platform foundation are located below the ground water level, constructors can build various forms of earth weirs according to local materials or adopt wooden sheet piles or steel sheet piles (single-layer or double-layer) to form a temporary enclosure structure at rivers with deep water and large flow velocity, wherein the temporary structure is generally called a cofferdam and has the function of preventing water and soil from entering the building position of a building so as to drain water in the cofferdam, excavate a foundation pit, build the building and the like.
Therefore, the construction of the underwater bearing platform is usually realized by a method of a hanging box cofferdam, but the construction process can be subjected to larger buoyancy and vertical load, and the traditional method generally resists the buoyancy of water by the self weight of a steel casing structure and back cover concrete of the cofferdam and resists the vertical load during the construction of the bearing platform by the bond stress between the back cover concrete and a pile foundation steel casing.
The strait bridge is different from a previously constructed bay bridge, and can meet severe conditions of high wind, wave height, surge, strong typhoon, complex geology and the like in the construction process, so that huge challenges and ultrahigh risks are brought to construction, and the safety operation of the strait bridge under the environment of ten-level high wind (land eight-level wind operation) on the offshore deck is required to be met after the strait bridge is constructed, so that the size of a cable tower bearing platform of the strait bridge is usually set to be larger to resist the severe offshore conditions.
And the construction of the large-size cable tower bearing platform can be completed through a large-size hanging box cofferdam. However, the hanging box cofferdam with a large size has huge upper buoyancy and sinking force, and still needs to bear larger buoyancy under the condition of extra sea surge, the steel pile casing structure of the cofferdam and the dead weight of the bottom sealing concrete can not resist huge buoyancy, and the bond force between the bottom sealing concrete and the pile foundation steel pile casing can not resist huge vertical load, if the large-size hanging box cofferdam still adopts the traditional method to resist buoyancy and vertical load, the floating force and the vertical load of the cofferdam can possibly cause the floating of the cofferdam, the construction bearing platform inclines, and further the construction safety is greatly threatened.
Disclosure of Invention
The embodiment of the application provides an anti-floating and anti-sinking steel pile casing and cofferdam, and aims to solve the problems that the traditional method in the related art cannot meet the requirements of a large-size hanging box cofferdam on resisting buoyancy and vertical load, and the construction risk is large.
In a first aspect, there is provided a float-resistant steel casing comprising:
the steel casing body is arranged in the cofferdam;
the fixed connecting piece is fixedly arranged at the top of the steel casing body, and the end part of the fixed connecting piece extends out of the steel casing body;
one end of the tension and compression rod is connected with the end part of the fixed connecting piece, and the other end of the tension and compression rod is used for penetrating through the bottom-sealed concrete top of the cofferdam;
the anti-floating corbels are the same as the tension and compression bars in number, one side of each anti-floating corbel is fixedly connected with the fixed connecting piece, and the other side of each anti-floating corbel is fixedly connected with the tension and compression bar;
and the anti-sinking brackets are the same as the tension and compression bars in quantity, the anti-sinking brackets are positioned at the bottom sealing concrete top of the cofferdam, one side of the anti-sinking brackets is fixedly connected with the tension and compression bars, and the other side of the anti-sinking brackets is fixedly connected with the outer wall of the steel casing body.
In some embodiments, the steel casing further comprises the same number of sealing boxes as the number of the tension and compression rods, and the sealing boxes are fixedly arranged on the tension and compression rods and used for accommodating the anti-sinking corbels.
In some embodiments, the fixed connection is a telescoping cross beam.
In some embodiments, the pull-press rod and the fixed connecting piece are in snap connection.
In some embodiments, the end of the fixed connecting member is provided with a slot, and the tension/compression bar is in a cross structure, one end of the tension/compression bar penetrates through the slot, and the other end of the tension/compression bar is clamped on the fixed connecting member.
In a second aspect, there is provided a cofferdam against sinking and floating, comprising: the steel casing described above.
In some embodiments, the steel casing further comprises the same number of sealing boxes as the number of the tension and compression rods, and the sealing boxes are fixedly arranged on the tension and compression rods and used for accommodating the anti-sinking corbels.
In some embodiments, the fixed connection is a telescoping cross beam.
In some embodiments, the pull-press rod and the fixed connecting piece are in snap connection.
In some embodiments, the end of the fixed connecting member is provided with a slot, and the tension/compression bar is in a cross structure, one end of the tension/compression bar penetrates through the slot, and the other end of the tension/compression bar is clamped on the fixed connecting member.
The beneficial effect that technical scheme that this application provided brought includes: the water-resistant buoyancy and the vertical load during the construction of the bearing platform can be effectively resisted, the anti-floating capacity of the large-size hanging box cofferdam is improved, and the safety risk in the construction process is reduced.
The embodiment of the application provides an anti-floating and anti-sinking steel casing and cofferdam, including steel casing body, fixed connector, the tension and compression bar, anti-floating bracket and anti-sinking bracket, will draw the compression bar and be connected with the fixed connector who sets firmly in steel casing body top, again will resist floating the bracket respectively with fixed connector, the tension and compression bar links firmly, anti-sinking bracket links firmly with the tension and compression bar respectively, the outer wall of steel casing body links firmly, because the tension and compression bar has great rigidity in the anti-floating, anti-sinking of cofferdam under the wave condition, can regard as main power transmission component, it can be with the effectual transmission to anti-floating bracket department of huge come-up force of water, and transmit the huge vertical load in the cushion cap work progress to anti-sinking bracket department, namely consume partial upward buoyancy and vertical load respectively by anti-floating bracket and anti-sinking bracket, and then can reduce the come-up force and the power that the cofferdam received, make steel casing structure and the dead weight of end-sealing concrete of cofferdam can resist less buoyancy and end-sealing concrete pile foundation The holding force between the cylinders can resist smaller sinking force, the stability of the cofferdam is guaranteed, the problems of floating of the cofferdam and inclination of a construction bearing platform are avoided, and the safety of the construction process is improved. Therefore, the embodiment of the application can effectively resist the huge buoyancy of water resistance and the huge vertical load of the bearing platform during construction, improves the anti-floating capacity of the large-size hanging box cofferdam, and reduces the safety risk of the construction process.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an anti-floating steel casing according to an embodiment of the present disclosure;
FIG. 2 is a schematic cross-sectional view taken at A-A of FIG. 1;
FIG. 3 is a schematic cross-sectional view taken at B-B of FIG. 1;
FIG. 4 is a schematic view of an installation of a heavy bracket according to an embodiment of the present disclosure;
fig. 5 is a schematic flow chart of a construction method of an anti-floating-sinking cofferdam provided in an embodiment of the present application.
In the figure: the method comprises the following steps of 1-steel casing body, 2-fixed connecting pieces, 3-tension and compression bars, 4-anti-floating brackets, 5-anti-sinking brackets, 6-sealing boxes and 7-cofferdam bottom plates.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides an anti-floating and anti-sinking steel casing and cofferdam, and solves the problems that the traditional method in the related art cannot meet the requirements of resisting buoyancy and vertical load of a large-size hanging box cofferdam and the construction risk is high.
Referring to fig. 1 to 3, an embodiment of the present application provides a structural schematic diagram of an anti-floating and anti-sinking steel casing, including a steel casing body 1, a fixed connecting member 2, at least one tension and compression bar 3, anti-floating corbels 4 in the same number as the tension and compression bars 3, and anti-sinking corbels 5 in the same number as the tension and compression bars 3; wherein the steel casing body 1 is arranged in the cofferdam; the fixed connecting piece 2 is fixedly arranged at the top of the steel casing body 1, and the end part of the fixed connecting piece extends out of the steel casing body 1; one end of the tension and compression bar 3 is connected with the end part of the fixed connecting piece 2, and the other end of the tension and compression bar is used for penetrating through the bottom-sealed concrete top of the cofferdam, wherein the tension and compression bar 3 can preferably adopt a rigid tension and compression bar consisting of steel columns, so that the rigidity of the tension and compression bar 3 is further improved; the anti-floating corbel 4 is formed by splicing a plurality of steel plates, one side of the anti-floating corbel is fixedly connected with the fixed connecting piece 2, and the other side of the anti-floating corbel is fixedly connected with the tension and compression rod 3, so that the anti-floating effect of resisting wave buoyancy can be achieved; the anti-sinking bracket 5 is positioned at the top of the bottom sealing concrete of the cofferdam and is formed by splicing a plurality of steel plates, one side of the anti-sinking bracket is fixedly connected with the tension and compression bar 3, and the other side of the anti-sinking bracket is fixedly connected with the outer wall of the steel casing body 1, so that the anti-sinking bracket can play a role in resisting the sinking of the working surface caused by the self weight of the bearing platform.
Because the tension and compression bar 3 has larger rigidity in the anti-floating and anti-sinking of the cofferdam under the wave condition, the tension and compression bar can be used as a main force transmission component, the large floating force of water can be effectively transmitted to the anti-floating bracket 4, and the large vertical load in the construction process of the bearing platform is transmitted to the anti-sinking bracket 5, namely, the anti-floating bracket 4 and the anti-sinking bracket 5 respectively consume part of the upper buoyancy and the vertical load, and further the floating force and the sinking force borne by the cofferdam can be reduced, so that the self weight of the steel casing structure and the bottom sealing concrete of the cofferdam can resist smaller buoyancy, and the bond force between the bottom sealing concrete and the steel casing of the pile foundation can also resist smaller sinking force, the stability of the cofferdam is ensured, the problems of floating and inclination of the construction bearing platform are avoided, and the safety of the construction process is improved. Therefore, the embodiment of the application can effectively resist the huge buoyancy of water resistance and the huge vertical load of the bearing platform during construction, improves the anti-floating capacity of the large-size hanging box cofferdam, and reduces the safety risk of the construction process.
Furthermore, in the embodiment of the present application, referring to fig. 4, the steel casing further includes sealing boxes 6 in the same number as the number of the tension and compression rods 3, where the sealing boxes 6 are fixedly disposed on the tension and compression rods 3 and are used for accommodating the anti-sinking corbels 5, so that not only can enough space be reserved for welding the anti-sinking corbels 5 after the cofferdam is sealed, but also water can be prevented from entering the cofferdam from the position where the anti-sinking corbels 5 are fixedly disposed, and the cofferdam is ensured to be in a dry space.
Furthermore, in the embodiment of the present application, the fixed connecting member 2 may be a cross beam formed by two box beams perpendicularly intersecting, the cross beam is configured to be telescopic, and the use method of the cross beam is as follows: pack up the tip of cross beam earlier to support and protect a position department at the presetting of steel and protect a body 1, treat cofferdam frame integral hoisting and pass steel and protect a body 1, stretch out the tip of cross beam for fixed pull and press pole 3, telescopic cross beam is convenient for realize cofferdam frame and the installation of steel and protect a body 1, and then improves the efficiency of construction.
Furthermore, in the embodiment of the present application, the tension/compression bar 3 and the fixed connection member 2 are connected by a snap, specifically, a slot may be disposed at an end of the fixed connection member 2, the tension/compression bar 3 is configured as a cross structure, one end of the tension/compression bar passes through the slot, and the other end of the tension/compression bar is clamped on the fixed connection member 2, which is simple and easy to operate, and the snap connection between the tension/compression bar 3 and the fixed connection member 2 can be realized without bolts or the like, thereby effectively improving the construction efficiency and the structural stability.
The embodiment of the application also provides an anti-floating-sinking cofferdam which comprises the steel casing, wherein the steel casing comprises a steel casing body 1, a fixed connecting piece 2, at least one tension and compression bar 3, anti-floating brackets 4 with the same number as the tension and compression bars 3 and anti-sinking brackets 5 with the same number as the tension and compression bars 3; because the tension and compression bar 3 has larger rigidity in the anti-floating and anti-sinking of the cofferdam under the wave condition, the tension and compression bar can be used as a main force transmission component, the large floating force of water can be effectively transmitted to the anti-floating bracket 4, and the large vertical load in the construction process of the bearing platform is transmitted to the anti-sinking bracket 5, namely, the anti-floating bracket 4 and the anti-sinking bracket 5 respectively consume part of the upper buoyancy and the vertical load, and further the floating force and the sinking force borne by the cofferdam can be reduced, so that the self weight of the steel casing structure and the bottom sealing concrete of the cofferdam can resist smaller buoyancy, and the bond force between the bottom sealing concrete and the steel casing of the pile foundation can also resist smaller sinking force, the stability of the cofferdam is ensured, the problems of floating and inclination of the construction bearing platform are avoided, and the safety of the construction process is improved. Therefore, the embodiment of the application can effectively resist the huge buoyancy of water resistance and the huge vertical load of the bearing platform during construction, improves the anti-floating capacity of the large-size hanging box cofferdam, and reduces the safety risk of the construction process.
Furthermore, in the embodiment of the present application, referring to fig. 4, the steel casing further includes sealing boxes 6 in the same number as the number of the tension and compression rods 3, where the sealing boxes 6 are fixedly disposed on the tension and compression rods 3 and are used for accommodating the anti-sinking corbels 5, so that not only can enough space be reserved for welding the anti-sinking corbels 5 after the cofferdam is sealed, but also water can be prevented from entering the cofferdam from the position where the anti-sinking corbels 5 are fixedly disposed, and the cofferdam is ensured to be in a dry space.
Furthermore, in the embodiment of the present application, the fixed connecting member 2 may be a cross beam formed by two box beams perpendicularly intersecting, the cross beam is configured to be telescopic, and the use method of the cross beam is as follows: pack up the tip of cross beam earlier to support and protect a position department at the presetting of steel and protect a body 1, treat cofferdam frame integral hoisting and pass steel and protect a body 1, stretch out the tip of cross beam for fixed pull and press pole 3, telescopic cross beam is convenient for realize cofferdam frame and the installation of steel and protect a body 1, and then improves the efficiency of construction.
Furthermore, in the embodiment of the present application, the tension/compression bar 3 and the fixed connection member 2 are connected by a snap, specifically, a slot may be disposed at an end of the fixed connection member 2, the tension/compression bar 3 is configured as a cross structure, one end of the tension/compression bar passes through the slot, and the other end of the tension/compression bar is clamped on the fixed connection member 2, which is simple and easy to operate, and the snap connection between the tension/compression bar 3 and the fixed connection member 2 can be realized without bolts or the like, thereby effectively improving the construction efficiency and the structural stability.
Referring to fig. 5, an embodiment of the present application further provides a construction method of an anti-floating-sinking cofferdam, including the following steps:
s1: arranging a steel casing body 1 in a cofferdam frame, and hoisting a fixed connecting piece 2 at the top of the steel casing body 1;
s2: one end of the tension and compression rod 3 is connected with the end part of the fixed connecting piece 2;
s3: the anti-floating bracket 4 is respectively connected with the tension and compression bar 3 and the fixed connecting piece 2;
s4: performing bottom sealing construction on the cofferdam frame through concrete;
s5: after bottom sealing construction is finished, fixedly connecting an anti-sinking bracket 5 with the pull-press rod 3 and a preset bottom sealing concrete top of the outer wall of the steel casing body 1 respectively;
s6: and (4) carrying out bearing platform steel bar installation and concrete pouring on the cofferdam frame to form the cofferdam.
Because the tension and compression bar 3 has larger rigidity in the anti-floating and anti-sinking of the cofferdam under the wave condition, the tension and compression bar can be used as a main force transmission component, the large floating force of water can be effectively transmitted to the anti-floating bracket 4, and the large vertical load in the construction process of the bearing platform is transmitted to the anti-sinking bracket 5, namely, the anti-floating bracket 4 and the anti-sinking bracket 5 respectively consume part of the upper buoyancy and the vertical load, and further the floating force and the sinking force borne by the cofferdam can be reduced, so that the self weight of the steel casing structure and the bottom sealing concrete of the cofferdam can resist smaller buoyancy, and the bond force between the bottom sealing concrete and the steel casing of the pile foundation can also resist smaller sinking force, the stability of the cofferdam is ensured, the problems of floating and inclination of the construction bearing platform are avoided, and the safety of the construction process is improved. Therefore, the embodiment of the application can effectively resist the huge buoyancy of water resistance and the huge vertical load of the bearing platform during construction, improves the anti-floating capacity of the large-size hanging box cofferdam, and reduces the safety risk of the construction process.
Further, in the embodiment of the present application, before bottom sealing construction of the cofferdam frame by concrete, the method further includes the steps of: install seal box 6 on the tension and compression bar 3, seal box 6 is located predetermined back cover concrete top department and is used for holding anti bracket 5 that sinks, not only can reserve sufficient space and be used for the cofferdam back cover anti bracket 5 of sinking's the executing welding, and can prevent in water gets into the cofferdam from having set firmly anti bracket 5 that sinks, guarantees that the cofferdam is in dry space.
The concrete construction method comprises the following steps: the end part of the cross beam is contracted and fixed at a preset hanging position of the steel casing body 1, the cofferdam frame is integrally hoisted to penetrate through the steel casing body 1, after the cofferdam frame is put in place, the end part of the cross beam extends out of the steel casing body 1 and is firmly welded with a shoveling pad at the top opening of the steel casing body 1; one end of a tension and compression rod 3 penetrates through a slotted hole at the end part of a cross beam extending out of the steel casing body 1 and is close to a cofferdam bottom plate 7, the other end of the tension and compression rod abuts against the upper surface of the end part of the cross beam, a cushion is pressed tightly and welded and fixed, sealing boxes 6 are welded on the four tension and compression rods 3 fixed on the cross beam respectively, and the sealing boxes 6 are in a sealing state in an initial state; fixedly connecting an anti-floating bracket 4 with the cross beam and the tension and compression rod 3 respectively for resisting the wave floating force; sealing the bottom of the cofferdam frame through concrete; after the bottom sealing is finished, performing pumping operation in the cofferdam frame; after the water pumping is finished, cutting off the top opening of the sealing box 6, and cutting off the tension and compression bar 3 above the bottom sealing concrete top; removing sundries at the position of the steel casing body 1 where the sealing box 6 is reserved; placing the anti-sinking bracket 5 in a sealing box 6, and respectively welding the anti-sinking bracket 5 with the steel pile casing body 1 and the tension and compression bar 3 for resisting the sinking of the working surface caused by the self weight of the bearing platform; and (4) installing bearing platform steel bars and pouring concrete on the cofferdam frame after bottom sealing to finally form the cofferdam capable of resisting floating and sinking.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An anti-floating and anti-sinking steel casing is characterized by comprising:
the steel casing body (1), the steel casing body (1) is used for being arranged in the cofferdam;
the fixed connecting piece (2) is fixedly arranged at the top of the steel casing body (1), and the end part of the fixed connecting piece (2) extends out of the steel casing body (1);
one end of the tension and compression rod (3) is connected with the end part of the fixed connecting piece (2), and the other end of the tension and compression rod is used for penetrating through the bottom-sealed concrete top of the cofferdam;
the anti-floating corbels (4) are the same as the tension and compression bars (3) in number, one side of each anti-floating corbel (4) is fixedly connected with the corresponding fixed connecting piece (2), and the other side of each anti-floating corbel is fixedly connected with the corresponding tension and compression bar (3);
and the anti-sinking brackets (5) are the same in quantity with the tension and compression rods (3), the anti-sinking brackets (5) are positioned at the bottom sealing concrete top of the cofferdam, one side of each anti-sinking bracket is fixedly connected with the tension and compression rods (3), and the other side of each anti-sinking bracket is fixedly connected with the outer wall of the steel casing body (1).
2. The anti-floating steel casing of claim 1, wherein: the steel protects a section of thick bamboo still include with draw the seal box (6) that depression bar (3) quantity is the same, seal box (6) set firmly in on drawing depression bar (3), it is used for holding anti bracket (5) that sink.
3. The anti-floating steel casing of claim 1, wherein: the fixed connecting piece (2) is a telescopic cross beam.
4. The anti-floating steel casing of claim 1, wherein: the tension and compression rod (3) is connected with the fixed connecting piece (2) in a buckling manner.
5. The anti-floating steel casing of claim 4, wherein: the end part of the fixed connecting piece (2) is provided with a slotted hole, the tension and compression rod (3) is of a cross structure, one end of the tension and compression rod penetrates through the slotted hole, and the other end of the tension and compression rod is clamped on the fixed connecting piece (2).
6. An anti-float cofferdam, comprising: the steel casing of claim 1.
7. An anti-flotation cofferdam as defined in claim 6, wherein: the steel protects a section of thick bamboo still include with draw the seal box (6) that depression bar (3) quantity is the same, seal box (6) set firmly in on drawing depression bar (3), it is used for holding anti bracket (5) that sink.
8. An anti-flotation cofferdam as defined in claim 6, wherein: the fixed connecting piece (2) is a telescopic cross beam.
9. An anti-flotation cofferdam as defined in claim 6, wherein: the tension and compression rod (3) is connected with the fixed connecting piece (2) in a buckling manner.
10. An anti-float cofferdam according to claim 9, characterized in that: the end part of the fixed connecting piece (2) is provided with a slotted hole, the tension and compression rod (3) is of a cross structure, one end of the tension and compression rod penetrates through the slotted hole, and the other end of the tension and compression rod is clamped on the fixed connecting piece (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120572008.0U CN214940288U (en) | 2021-03-19 | 2021-03-19 | Anti-floating and anti-sinking steel pile casing and cofferdam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120572008.0U CN214940288U (en) | 2021-03-19 | 2021-03-19 | Anti-floating and anti-sinking steel pile casing and cofferdam |
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| CN214940288U true CN214940288U (en) | 2021-11-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115162413A (en) * | 2022-07-27 | 2022-10-11 | 中铁第四勘察设计院集团有限公司 | Anti-floating structure suitable for mechanical construction of vertical shaft and construction method thereof |
| WO2023207420A1 (en) * | 2022-04-28 | 2023-11-02 | 中铁七局集团有限公司 | Bearing platform cofferdam system suitable for repairing bridge pier of existing bridge |
-
2021
- 2021-03-19 CN CN202120572008.0U patent/CN214940288U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023207420A1 (en) * | 2022-04-28 | 2023-11-02 | 中铁七局集团有限公司 | Bearing platform cofferdam system suitable for repairing bridge pier of existing bridge |
| CN115162413A (en) * | 2022-07-27 | 2022-10-11 | 中铁第四勘察设计院集团有限公司 | Anti-floating structure suitable for mechanical construction of vertical shaft and construction method thereof |
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