Large-diameter bored pile head seal sinking type hopper

Abstract

The utility model discloses a large-diameter bored pile head seal sinking type hopper and relates to the field of bored pile construction, the large-diameter bored pile head seal sinking type hopper comprises a hopper body and a supporting part, specifically, the hopper body comprises a steel casing and a conveying hopper, and the bottom of the conveying hopper is located in the steel casing; the bottom of the conveying hopper is provided with a guide pipe opening used for connecting a concrete pouring guide pipe. The supporting part comprises a fixing piece located on the periphery of the conveying hopper and used for clamping the conveying hopper, the fixing piece is provided with a hoisting piece and an adjusting piece used for uniformizing stress of the fixing piece, the steel casing is arranged in a drilled pile which is constructed, the fixing piece clamps the conveying hopper and suspends the conveying hopper above the drilled pile, and the steel casing is arranged on the drilling pile. The bottom part of the conveying hopper is located in the steel casing, the height difference between the conveying hopper and the ground is reduced, pouring materials can be conveniently poured by a transport vehicle, and the hoisting piece is arranged on the fixing piece, so that the conveying hopper is conveniently transferred and transported.

Description

Technical Field

[0001] The utility model relates to the field of bored pile construction, in particular to a large-diameter bored pile head-sealed sinking hopper. Background Art

[0002] At present, with the continuous development of bridge engineering, super-large span bridges are constantly being built, resulting in the continuous increase in the diameter of pile foundations. In order to meet the requirements of pouring underwater concrete using the pile foundation conduit method, the volume of the first concrete seal of the pile foundation has increased exponentially according to the pile diameter, and the size of the first concrete seal hopper for the pile foundation has also become larger accordingly.

[0003] A common hopper is provided with a support beam below the cone, and the support beam is provided above the drilling platform. The height of the support beam and the hopper itself is superimposed, resulting in the feed port of the hopper being too high from the drilling platform, so that the concrete mixer truck cannot directly unload into the hopper. At present, the first common practice is to use a car pump to pump the concrete in the concrete truck into the first sealed hopper, but this method not only increases the on-site equipment, but also increases the construction cost; the second common practice is to set up a concrete mixer truck lane for padding, increase the unloading height of the truck, and ensure that the unloading port of the truck is above the hopper mouth. Due to the large load of the tank truck, this method will further raise the center of gravity of the tank truck, increase the bearing capacity requirements of the foundation, increase the safety risk of on-site construction, and the site construction cost will also increase accordingly. Utility Model Content

[0004] The present application provides a large-diameter bored pile first-sealing sinking hopper, which can reduce the height difference between the feed port of the first-sealing hopper and the ground or drilling platform when pouring large-diameter bored piles, thereby reducing the pouring difficulty of a concrete mixer truck.

[0005] The present application provides a large-diameter bored pile head seal sinking hopper, comprising:

[0006] The hopper body comprises a steel casing and a conveying hopper with a bottom located in the steel casing, wherein a conduit interface for connecting a concrete pouring conduit is provided at the bottom of the conveying hopper;

[0007] The supporting part includes a fixing part located at the outer periphery of the conveying hopper for clamping the conveying hopper, and the fixing part is provided with a hanging part and an adjusting part for evenly applying force to the fixing part.

[0008] In one embodiment, the conveying hopper includes a feed port and a discharge port having a diameter smaller than the diameter of the feed port.

[0009] In one embodiment, the outer diameter of the feed port is smaller than the inner diameter of the steel casing.

[0010] In one embodiment, the catheter interface is arranged on the discharge port.

[0011] In one embodiment, the fixing member comprises a frame formed by welding two transverse steel beams and two vertical steel beams.

[0012] In one embodiment, the length of the transverse steel beam is longer than that of the vertical steel beam, and both ends of the vertical steel beam are welded to the inner side of the transverse steel beam.

[0013] In one embodiment, the center points of the transverse steel beam and the vertical steel beam are welded to the outer periphery of the conveying hopper.

[0014] In one embodiment, the connection between the fixing member and the conveying hopper is provided with a reinforcing steel plate for fixing the connection.

[0015] In one embodiment, the number of the hoisting parts is 4 and they are symmetrically arranged on the two transverse steel beams.

[0016] In one embodiment, the adjusting member includes four pads, which are detachably disposed at the bottom of both ends of the two transverse steel beams, and the pads are disposed parallel to the vertical steel beams.

[0017] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0018] By sinking the bottom part of the conveying hopper into the steel casing, the height of the conveying hopper is lowered, and the height difference between the feed port on the top of the conveying hopper and the ground or the drilling platform is shortened, which facilitates the pouring of the concrete mixer truck into the conveying hopper. At the same time, a fixing piece is arranged on the outer periphery of the part of the conveying hopper exposed from the steel casing, which can ensure that the conveying hopper is stably suspended on the bored piles. At the same time, a detachable adjustment piece arranged on the fixing piece can help adjust the horizontality of the fixing piece and the verticality of the hopper in the casing, standardize the construction process, and eliminate the breakage or deformation of the fixing piece caused by uneven force. The detachable connection between the fixing piece and the adjusting piece can be flexibly disassembled by the staff according to the actual needs of the construction site. The overall structure is simple, and the height of the hopper can be reduced while ensuring the stable connection between the conveying hopper and the fixing piece, which facilitates the pouring work of the transport vehicle and improves the pouring efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1A front view of a large-diameter bored pile head-sealed sinking hopper provided by the utility model;

[0021] Figure 2 A top view of a large-diameter bored pile head-sealed sinking hopper provided by the utility model;

[0022] Figure 3 A structural diagram of a second implementation of a stiffening steel plate in a large-diameter bored pile head-sealed sinking hopper provided by the utility model.

[0023] In the figure: 1. Steel casing; 2. Conveying hopper; 201. Feed inlet; 202. Discharge outlet; 203. Conduit interface; 3. Fixing parts; 301. Horizontal steel beam; 302. Vertical steel beam; 303. Reinforcing steel plate; 4. Lifting parts; 5. Adjusting parts; 501. Copy pad. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0025] The present application provides a large-diameter bored pile first seal sinking hopper, which can solve the technical problem in the prior art that when a concrete transport truck pours concrete into a large-sized first seal hopper, the first seal hopper and the support frame are too high, resulting in inconvenience in pouring concrete.

[0026] Figure 1 A front view of a large-diameter bored pile head-sealed sunken hopper provided by the utility model, which includes a hopper body and a support portion, the hopper body includes a steel casing 1 and a conveying hopper 2 with a bottom located in the steel casing 1, the support portion includes a fixing member 3 located at the outer periphery of the conveying hopper 2 for clamping the conveying hopper 2, and a hoisting member 4 and an adjusting member 5 for adjusting the height of the conveying hopper 2 are provided on the fixing member 3.

[0027] Specifically, the steel casing 1 is a steel cylinder with openings at the top and bottom. During the bored pile construction, the soil at the construction site is unstable and it is very difficult to construct reinforced concrete retaining walls. Therefore, the steel casing 1 is required to protect the bored piles to prevent the hole from collapsing and to avoid affecting the construction progress and safety. The deviation of the plane position of the steel casing 1 shall not be greater than 5 cm.

[0028] A conveying hopper 2 is arranged in the steel casing 1. The conveying hopper 2 is mainly used to directly deliver concrete material into the bored pile, so that the bored pile is guaranteed in terms of concrete strength and density. When the bored pile is poured, the discharge port 202 of the conveying hopper 2 needs to be placed at the upper end opening of the steel casing 1. Because it has a certain height, and the larger the diameter of the conveying hopper 2, the higher the height will be. Therefore, in order to facilitate the concrete transport vehicle to pour the pouring material from the feed port 201 of the conveying hopper 2, in the present application, the bottom part of the conveying hopper 2 is sunk and located in the steel casing 1 to reduce the overall height and shorten the height difference between the feed port 201 of the conveying hopper 2 and the ground level. Generally, during pouring, it must be used in conjunction with a pouring catheter to maintain smooth transportation of the pouring material. Therefore, a catheter interface 203 for connecting the pouring catheter is also arranged at the bottom of the conveying hopper 2, and the catheter interface 203 is detachably connected to the discharge port 202 at the bottom of the conveying hopper 2.

[0029] The supporting part includes a fixing member 3 located at the outer periphery of the conveying hopper 2 for clamping the conveying hopper 2 , and a hanging member 4 and an adjusting member 5 for adjusting the height of the conveying hopper 2 are provided on the fixing member 3 .

[0030] The bottom of the conveying hopper 2 is embedded in the steel casing 1. The outer diameter of the conveying hopper 2 is smaller than the inner diameter of the steel casing 1 to facilitate the lowering and recovery of the conveying hopper 2. The conveying hopper 2 itself does not contact the inner wall of the steel casing 1. Therefore, a fixing part 3 for clamping the conveying hopper 2 is also provided on the outer periphery of the conveying hopper 2 to suspend the conveying hopper 2 above the bored pile and the steel casing 1.

[0031] Specifically, the fixing member 3 is connected to the outer periphery of the portion of the steel casing 1 exposed above the conveying hopper 2, and the length of the fixing member 3 is longer than the diameter of the bored pile. The portion longer than the diameter of the bored pile is placed on the ground or drilling platform around the bored pile. The fixing member 3 mainly bears the weight of the conveying hopper 2, the connecting conduit below the conveying hopper 2, and the weight of concrete poured into the conveying hopper 2. The contact area between the fixing member 3 and the ground depends on the size of the conveying hopper 2. When the conveying hopper 2 is larger, the ground contact area of ​​the fixing member 3 is also increased accordingly, so as to better support the conveying hopper 2 and disperse gravity.

[0032] Further, in one embodiment of the present application, the fixing member 3 is a square frame, and the conveying hopper 2 is arranged at the center of the frame. Specifically, Figure 2A top view of a large-diameter bored pile first seal sinking hopper provided by the utility model, wherein the fixing member 3 includes a frame welded by two transverse steel beams 301 and two vertical steel beams 302, and the lengths of the transverse steel beams 301 and the vertical steel beams 302 are both longer than the diameter of the bored pile so that they can be placed on the ground or drilling platform at the periphery of the top of the bored pile. Furthermore, the longer the length of the fixing member 3 exceeds the diameter of the bored pile, the larger the contact area with the ground or drilling platform at the periphery of the bored pile, and the load-bearing capacity and stability of the fixing member 3 will also increase accordingly. Therefore, in one embodiment of the present application, the length of the transverse steel beam 301 is longer than that of the vertical steel beam 302, and the two ends of the vertical steel beam 302 are welded to the inner wall side of the transverse steel beam 301.

[0033] At the pouring site, there are many construction workers, and the pouring process may also require the use of different construction equipment. If the fixing member 3 occupies too much area, it may affect the normal pouring and cause safety hazards to the on-site construction workers. Therefore, in this embodiment, only the length of the horizontal steel beam 301 is extended, so that the fixing member 3 is only elongated in the length direction, and the vertical steel beam 302 is maintained at a length slightly longer than the diameter of the bored pile. This not only ensures the ground contact area of ​​the fixing member 3, but also leaves the ground on both sides of the bored pile vertically, ensuring the normal working process of the construction equipment, but also facilitates later transfer and transportation.

[0034] In order to further stabilize the connection between the fixing part 3 and the conveying hopper 2, a reinforcing steel plate 303 is provided at the connection between the fixing part 3 and the storage conveying hopper 2. Furthermore, the fixing part 3 is a square frame, and the conveying hopper 2 is arranged in the square frame. The center points of the transverse steel beam 301 and the vertical steel beam 302 in the fixing part 3 are welded to the outer periphery of the part of the conveying hopper 2 exposed from the steel casing 1, so that the conveying hopper 2 is in the center position of the fixing part 3, ensuring that the force of the fixing part 3 is uniform. However, the cross section of the commonly used conveying hopper 2 is generally circular, which causes it to be inconsistent with the long strip of transverse steel beam 301 and the vertical steel beam 302. The contact area between the longitudinal steel beam 301 and the vertical steel beam 302 is small, and the weld is also short. When the conveying hopper 2 is large in size and heavy in weight, simple welding may not be able to withstand the weight of the conveying hopper 2 and the concrete in the conveying hopper 2. Therefore, in order to strengthen the connection between the fixing part 3 and the conveying hopper 2, a reinforcing steel plate 303 is provided at the weld between the fixing part 3 and the storage conveying hopper 2. The reinforcing steel plate 303 can be directly welded to the weld between the fixing part 3 and the storage conveying hopper 2. Its length is longer than the length of the weld, and its width only needs to cover the fixing part 3 and the storage conveying hopper 2.

[0035] In the second embodiment of the stiffening steel plate 303, the stiffening steel plate 303 may also be an arc panel disposed on the inner side wall of the transverse steel beam 301 and the vertical steel beam 302. Figure 3This is a structural diagram of a second embodiment of a reinforcing steel plate 303 in a large-diameter bored pile head-sealed sunken hopper provided by the utility model. Specifically, the bottom of the arc panel is flat, fixedly connected to the inner walls of the transverse steel beam 301 and the vertical steel beam 302 as a whole, and the side in contact with the outer periphery of the storage and conveying hopper 2 is concave arc-shaped and is fitted and welded to the outer periphery of the storage and conveying hopper 2.

[0036] Before the bored pile pouring process, the steel casing 1 is arranged first, and then the fixing part 3 is placed in the corresponding position together with the conveying hopper 2. Since the conveying hopper 2 is generally made of steel material and has a large dead weight, it can only be transported by lifting equipment. Therefore, in the present application, a lifting part 4 is also arranged on the fixing part 3. In order to ensure the average force of the lifting, the number of lifting parts 4 is 4, and they are respectively distributed at the welding points of the horizontal steel beam 301 and the vertical steel beam 302. The lifting part 4 is a commonly used transportation component in the technical field, generally a lifting ear, which can be directly welded to the fixing part 3 to strengthen the connection between the horizontal steel beam 301 and the vertical steel beam 302, and can also be threadedly connected to the fixing part 3. There is no specific restriction on its setting form and connection method in the present application, which can ensure the normal lifting of the fixing part 3 and the conveying hopper 2 and bear its gravity.

[0037] The present application also includes an adjusting member 5 for dispersing the force of the fixing member 3, see Figure 2 The adjusting member 5 is arranged at the bottom of the fixing member 3. Specifically, in one embodiment of the present application, the adjusting member 5 includes a pad 501. The pad 501 is 4 in number and is detachably arranged at the bottom of both ends of the transverse steel beam 301, and is arranged perpendicular to the transverse steel beam 301. At the construction site, the transverse steel beam 301 in the fixing member 3 is the main force-bearing side, which bears the weight of the conveying hopper 2, the connecting conduit under the conveying hopper 2, and the concrete poured into the conveying hopper 2. Therefore, by arranging the pad 501 perpendicular to the transverse steel beam 301, its ground contact area can be increased to disperse the The fixing member 3 is subjected to force, and at the same time, it can help adjust the horizontal state of the transverse steel beam 301 on some uneven construction ground. The pad 501 can be made of steel or square wood, and the pad 501 and the transverse steel beam 301 are detachable. Whether to install or remove can be determined according to the actual construction site and construction conditions. Further, the detachable method here can be directly placed under the transverse steel beam 301, or a groove can be set at the bottom of the transverse steel beam 301, and a corresponding protrusion can be set on the pad 501 to achieve installation and removal connection, etc. There is no specific limitation in the present application.

[0038] When using the sunken hopper in the present application, first place a matching steel casing 1 based on the diameter of the bored pile so that the outer wall of the steel casing 1 fits tightly against the inner wall of the bored pile. Then determine the lowering position of the transverse steel beam 301, and decide whether to set a pad 501 below the transverse steel beam 301 based on the actual terrain requirements and the weight of the conveying hopper 2. Finally, use the lifting lugs on the fixing member 3 to lift the pre-welded fixing member 3 and the conveying hopper 2 above the bored pile and drop them steadily until the transverse steel beam 301 in the fixing member 3 is placed on the pad 501 or the drilling platform surface. After ensuring that it is placed steadily, the pouring work can be started.

[0039] The sunken hopper in the present application lowers the height of the conveying hopper 2 by sinking the main body of the conveying hopper 2 into the steel casing 1, shortens the horizontal difference between the feeding port 201 of the conveying hopper 2 and the ground, and facilitates the pouring work of the transport vehicle. At the same time, a fixing piece 3 is welded on the outer periphery of the part of the conveying hopper 2 exposed from the steel casing 1, so that the conveying hopper 2 can be stably suspended above the bored pile. A stiffening steel plate 303 is arranged at the welding point between the conveying hopper 2 and the fixing piece 3, which can stabilize the connection between the two and prevent the conveying hopper 2 from falling off due to the excessive weight of the conveying hopper 2 and the fracture of the welding seam. At the same time, the pad 501 arranged at the bottom of the transverse steel beam 301 can help adjust the horizontality of the fixing piece 3 and the verticality of the conveying hopper 2 welded with the fixing piece 3, standardize the construction process, and eliminate the fracture or deformation of the fixing piece 3 caused by uneven force. The overall structure is simple. When pouring large-diameter bored piles, the height of the conveying hopper 2 can be reduced while ensuring that the conveying hopper 2 is firmly connected to the fixing piece 3, which facilitates the pouring work of the transport vehicle and improves the pouring efficiency.

[0040] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0041] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0042] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A large diameter bored pile head seal sinking hopper, characterized in that: include: A hopper body, comprising a steel casing (1) and a conveying hopper (2) with a bottom located in the steel casing (1), wherein a conduit interface (203) for connecting to a concrete pouring conduit is provided at the bottom of the conveying hopper (2); A support portion, the support portion comprising a fixing member (3) located at the outer periphery of the conveying hopper (2) for clamping the conveying hopper (2), the fixing member (3) being provided with a hanging member (4) and an adjusting member (5) for evenly applying force to the fixing member (3).

2. A large diameter bored pile head seal sinking hopper as claimed in claim 1, characterized in that: The conveying hopper (2) comprises a feed port (201) and a discharge port (202) having a diameter smaller than that of the feed port (201).

3. A large diameter bored pile head seal sinking hopper as claimed in claim 2, characterized in that: The outer diameter of the feed port (201) is smaller than the inner diameter of the steel casing (1).

4. A large diameter bored pile head seal sinking hopper as claimed in claim 3, characterized in that: The conduit interface (203) is arranged on the discharge port (202).

5. A large diameter bored pile head seal sinking hopper as claimed in claim 1, characterized in that: The fixing member (3) comprises a frame formed by welding two transverse steel beams (301) and two vertical steel beams (302).

6. A large diameter bored pile head seal sinking hopper as claimed in claim 5, characterized in that: The length of the transverse steel beam (301) is longer than that of the vertical steel beam (302), and both ends of the vertical steel beam (302) are welded to the inner side of the transverse steel beam (301).

7. A large diameter bored pile head seal sinking hopper as claimed in claim 6, characterized in that: The center points of the transverse steel beam (301) and the vertical steel beam (302) are welded to the outer periphery of the conveying hopper (2).

8. A large diameter bored pile head seal sinking hopper as claimed in claim 1, characterized in that: The connection between the fixing member (3) and the conveying hopper (2) is provided with a reinforcing steel plate (303) for fixing the connection.

9. A large diameter bored pile head seal sinking hopper as claimed in claim 5, characterized in that: The number of the hanging parts (4) is four and they are symmetrically arranged on the two transverse steel beams (301).

10. A large diameter bored pile head seal sinking hopper as claimed in claim 5, characterized in that: The adjusting member (5) comprises four pads (501), which are detachably arranged at the bottom of both ends of the two transverse steel beams (301), and the pads (501) are arranged parallel to the vertical steel beams (302).

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