Pile foundation assembly, manufacturing method of pile foundation assembly and manufacturing method of sheet-pile wall

Abstract

The invention provides a pile foundation assembly, a manufacturing method of the pile foundation assembly and a manufacturing method of a sheet-pile wall. The manufacturing method of the pile foundation assembly comprises the steps that a hollow pile casing is buried in a pile foundation area; soil in the pile casing is removed; a reinforcement cage assembly is arranged in the pile casing and comprises a reinforcement cage and at least one of an inner water bag connected to the inner peripheral wall of the reinforcement cage and an outer water bag connected to the outer peripheral wall of the reinforcement cage; concrete is poured into the pile casing, so that the concrete wraps part of the reinforcement cage to form a pile foundation; the pile foundation assembly comprises a pile foundation, a reinforcement cage exposed out of the pile foundation, an inner water bag and an outer water bag. At least part of the outer peripheral face of the outer water bag is exposed out of the pile foundation. According to the embodiment, the manufacturing efficiency of the slab-pile wall can be improved, the exposure time of the foundation pit area is shortened, and structural safety is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of pile-board walls, and in particular to a pile foundation assembly and a manufacturing method thereof, and a manufacturing method of a pile-board wall. Background Art

[0002] A pile-sheet wall is a retaining structure formed by upright slat-like members, usually used to resist lateral earth pressure. A pile-sheet wall generally includes a plurality of vertically arranged pile foundations and a wall body vertically connected to one side of the pile foundations. The pile foundations include concrete and a steel cage wrapped by concrete. The wall body includes concrete and wall reinforcement wrapped by concrete. The steel cage is connected to the wall reinforcement to enhance the stability of the pile-sheet wall.

[0003] In the related art, the manufacturing of pile-sheet walls generally adopts the reverse construction method. That is, multiple pile foundations are first manufactured, and then the earth located in the foundation pit area is excavated in layers and sections. After excavating a layer of earth, a layer of pile-sheet wall is constructed. In the process of wall construction, it is necessary to first connect the wall reinforcement with the steel cage of the pile foundation, and then pour concrete to wrap the wall reinforcement. However, the steel cage of the pile foundation has been wrapped by solidified concrete. Therefore, it is necessary to chisel out part of the concrete of the pile foundation to expose the binding space of the steel cage of the pile foundation, so as to facilitate the binding of the wall reinforcement with the steel cage.

[0004] However, chiseling away part of the concrete in the pile foundation creates a lot of noise, takes a long time, and poses great difficulty and safety risks. Summary of the invention

[0005] In view of the shortcomings of the existing methods, the present application proposes a pile foundation assembly and a manufacturing method thereof, and a manufacturing method of a pile-board wall, so as to solve the technical problems in the related technology that the removal of part of the concrete of the pile foundation causes large noise, a long cycle, and great difficulty or safety risks.

[0006] In a first aspect, an embodiment of the present application provides a method for manufacturing a pile foundation assembly, comprising: Bury hollow casing in the pile foundation area; Remove the soil inside the casing; A steel cage assembly is arranged in the casing, the steel cage assembly comprising a steel cage and at least one of an inner water bag connected to the inner peripheral wall of the steel cage and an outer water bag connected to the outer peripheral wall of the steel cage; Concrete is poured in the casing so that the concrete wraps part of the steel cage to form a pile foundation; the pile foundation assembly includes a pile foundation, a steel cage exposed outside the pile foundation, an inner water bag and an outer water bag; at least part of the outer peripheral surface of the outer water bag is exposed outside the pile foundation.

[0007] In some possible embodiments, before the steel cage assembly is arranged in the casing, the method further includes: A steel cage is manufactured; the steel cage includes a plurality of vertical steel bars arranged at intervals along the circumferential direction, and spiral bars spirally wound around each vertical steel bar; Making an inner water bag and connecting at least one flexible first connecting member to the outer peripheral surface of the inner water bag; An outer water bag is manufactured and at least one flexible second connecting member is connected to the outer peripheral surface of the outer water bag.

[0008] In some possible embodiments, before the steel cage assembly is arranged in the casing, the method further includes: The inner water bag is tied to the steel cage by a first connecting member, so that part of the outer peripheral surface of the inner water bag contacts or abuts against the vertical steel bars in the joint area of ​​the pile foundation assembly and the wall along the circumference of the steel cage; The outer water bag is tied to the steel cage through the second connecting piece, so that the outer peripheral surfaces on both sides of the outer water bag are respectively in contact with or abut against the spiral reinforcement and the inner peripheral wall of the casing in the combination area.

[0009] In some possible embodiments, there are at least two inner water bags and at least two outer water bags, which are stacked vertically; The inner side of the inner water bag is close to or overlaps with the inner edge of the joint area between the pile foundation assembly and the wall.

[0010] In some possible embodiments, the lowest point of the inner water bag is not higher than the bottom of the foundation pit area of ​​the pile-board wall.

[0011] In some possible embodiments, pouring concrete in the casing includes: Insert the catheter into the steel cage at a position away from the inner water bag; The soil in the casing is tested. If the test results meet the pouring requirements, the conduit is used to pour concrete.

[0012] In a second aspect, an embodiment of the present application further provides a method for manufacturing a pile-board wall, comprising: Excavate the earthwork of the foundation pit area on the wall side of the pile-sheet wall to expose the outer peripheral surface of the outer water bag of any pile foundation assembly provided in the first aspect above; the foundation pit area includes the wall area, and the area where the wall area intersects with the pile foundation assembly is the bonding area; Drain the water in the outer water bag and the inner water bag to expose the steel cage of the pile foundation assembly and release the binding space belonging to the joint area; The wall reinforcement is horizontally arranged in the binding space of at least one pile foundation component and is bound with the reinforcement cage; Concrete is poured in the wall area to wrap the wall reinforcement and the reinforcement cage exposed from the pile foundation to obtain the wall; the wall is fixedly connected to the pile foundation of the pile foundation assembly to form a pile-board wall.

[0013] In some possible embodiments, excavating the earth in the foundation pit area on the wall side of the pile-sheet wall to expose the outer peripheral surface of the outer water bag of any pile foundation assembly provided in the first aspect above includes: Excavate the first layer of earth in the foundation pit area or a layer of earth below the last layer of wall section to expose the outer peripheral surface of an outer water bag of the pile foundation assembly; And, pouring concrete in the foundation pit area, wrapping the wall reinforcement and the reinforcement cage exposed from the pile foundation, to obtain the wall, including: A first layer of concrete is poured in the foundation pit area to cover the first layer of wall reinforcement and the first layer of reinforcement cage exposed from the pile foundation to obtain a first layer of wall section; Alternatively, a layer of concrete is poured in the space belonging to the wall area below the upper wall segment, and a layer of wall reinforcement and a layer of reinforcement cage exposed from the pile foundation are wrapped to obtain a layer of wall segment.

[0014] In a third aspect, an embodiment of the present application further provides a pile foundation assembly manufactured by any of the pile foundation assembly manufacturing methods provided in the first aspect, comprising: Pile foundations, formed by concrete encasing part of a steel cage; Steel cage exposed outside the pile foundation; An inner water bag connected to the inner peripheral wall of the steel cage exposed outside the pile foundation; The outer water bag is connected to the outer peripheral wall of the steel cage exposed outside the pile foundation.

[0015] In some possible embodiments, at least one of the following is included: There are multiple inner water bags; each inner water bag is stacked vertically in multiple layers; each inner water bag has an opening and an opening cover connected to the opening by a spiral; There are multiple outer water bags; each outer water bag is stacked vertically in multiple layers; each outer water bag has an opening and an opening cover connected to the opening by a spiral; The material of the inner water bladder includes polyvinyl chloride with a smooth outer surface; The material of the outer water bladder includes polyvinyl chloride and has a smooth outer surface.

[0016] The beneficial technical effects brought about by the technical solution provided by the embodiment of the present application include: In the embodiment of the present application, after the pile foundation is manufactured and the wall is manufactured, the water in the inner water bag and the outer water bag is discharged to release the space. There is no need to chisel out the solidified concrete of the pile foundation itself, no need to use equipment such as an air compressor, and basically no noise is generated.

[0017] Moreover, releasing water at a low place can drain water from a high place without the need for high-altitude operations, which can free up the cost of binding space and eliminate the risk of high-altitude operations in the process.

[0018] Moreover, it is only necessary to drain the inner water bag and the outer water bag of each pile foundation, which is easy to operate, can improve the manufacturing efficiency of the pile-board wall, reduce the exposure time of the foundation pit area, and is beneficial to the structural safety.

[0019] In addition, there is basically no vibration during the drainage process, which will not affect the surrounding earthwork structures, retaining structures, etc., and has strong safety.

[0020] Additional aspects and advantages of the present application will be partially given in the following description, which will become apparent from the following description, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which: Figure 1 A schematic diagram of a process for manufacturing a pile foundation assembly provided in an embodiment of the present application; Figure 2 A horizontal cross-sectional schematic diagram of a structure after a steel cage assembly is arranged in a casing in a method for manufacturing a pile foundation assembly provided in an embodiment of the present application; Figure 3 A schematic horizontal cross-sectional view of the structure of a pile foundation assembly provided in an embodiment of the present application; Figure 4 A schematic horizontal cross-sectional view of a pile foundation structure provided in an embodiment of the present application; Figure 5 A schematic vertical cross-sectional view from the side during manufacture of a pile-sheet wall provided in an embodiment of the present application; Figure 6 A schematic diagram of a process for manufacturing a pile-board wall provided in an embodiment of the present application; Figure 7 A schematic top view of the structure of a pile-board wall provided in an embodiment of the present application.

[0022] Reference numerals: 100-pile foundation assembly; 11-pile foundation; 12-reinforcement cage; 121-vertical reinforcement; 122-spiral reinforcement; 13-inner water bag; 14-outer water bag; 15- casing; 200-wall; 201-wall reinforcement; 300-foundation pit area; 301-wall area. DETAILED DESCRIPTION

[0023] The embodiments of the present application are described below in conjunction with the drawings in the present application. It should be understood that the implementation methods described below in conjunction with the drawings are exemplary descriptions for explaining the technical solutions of the embodiments of the present application and do not constitute a limitation on the technical solutions of the embodiments of the present application.

[0024] It will be understood by those skilled in the art that, unless specifically stated, the "said" and "the" used herein may also include plural forms. It should be further understood that the wording "including" used in the specification of the present application refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the implementation of other features, information, data, steps, operations, elements, components and / or combinations thereof supported by the present technical field. It should be understood that when we say that an element is "connected" or "coupled" to another element, the element may be directly connected or coupled to the other element, or it may refer to the connection relationship between the element and the other element through an intermediate element. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The term "and / or" used herein refers to at least one of the items defined by the term, for example, "A and / or B" may be implemented as "A", or as "B", or as "A and B".

[0025] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0026] The research and development ideas of this application include: In the related art, the manufacturing of pile-sheet walls generally adopts the reverse construction method. That is, multiple pile foundations are first manufactured, and then the earth located in the foundation pit area is excavated in layers and sections. After excavating a layer of earth, a layer of pile-sheet wall is constructed. In the process of wall construction, it is necessary to first connect the wall reinforcement with the steel cage of the pile foundation, and then pour concrete to wrap the wall reinforcement. However, the steel cage of the pile foundation has been wrapped by solidified concrete. Therefore, it is necessary to chisel out part of the concrete of the pile foundation to expose the binding space of the steel cage of the pile foundation, so as to facilitate the binding of the wall reinforcement with the steel cage.

[0027] However, the concrete of the pile foundation is very hard after solidification, and an air compressor and a pneumatic pick are needed to carry out the chiseling work, which easily generates a lot of noise and dust, causing serious environmental pollution.

[0028] Moreover, the pile foundation is an upright column with a certain height. Chiseling at a higher place requires setting up an operating platform, which increases the cost of chiseling and the risk of high-altitude operations.

[0029] In addition, it takes a lot of time to chisel out part of the concrete of the pile foundation one by one, which seriously affects the construction efficiency of the pile-board wall. After the foundation pit area is excavated, the pile foundation is chiseled out in the foundation pit area, which makes the foundation pit area exposed for a long time, which is not conducive to structural safety.

[0030] In addition, vibrations are likely to occur during the excavation process, which can easily affect the surrounding earthwork structures, retaining structures, etc., posing a greater safety risk.

[0031] The pile foundation assembly and its manufacturing method, as well as the pile-board wall manufacturing method provided in the present application are intended to solve the above technical problems of the related technology.

[0032] The following is a detailed description of the technical solution of the present application and how the technical solution of the present application solves the above technical problems with specific embodiments. It should be noted that the following implementations can refer to, draw on or combine with each other, and the same terms, similar features and similar implementation steps in different implementations will not be described repeatedly.

[0033] The present application embodiment provides a method for manufacturing a pile foundation assembly 100, and the flow chart of the method is as follows: Figure 1 As shown, the method includes steps S101 to S104: S101: burying a hollow casing 15 in the area of ​​the pile foundation 11.

[0034] S102: removing the soil in the casing 15.

[0035] S103: a steel cage assembly is arranged in the casing 15, wherein the steel cage assembly includes a steel cage 12, and at least one of an inner water bag 13 connected to the inner peripheral wall of the steel cage 12 and an outer water bag 14 connected to the outer peripheral wall of the steel cage 12. Optionally, the structural schematic diagram after this step is as follows Figure 2 shown.

[0036] S104: pouring concrete in the casing 15 so that the concrete wraps part of the steel cage 12 to form the pile foundation 11. The pile foundation assembly 100 includes the pile foundation 11, the steel cage 12 exposed outside the pile foundation 11, the inner water bag 13 and the outer water bag 14. At least part of the outer peripheral surface of the outer water bag 14 is exposed outside the pile foundation 11.

[0037] Optionally, the structural diagram of the pile foundation assembly 100 is as follows: Figure 3 As shown, the structural schematic diagram of the pile foundation 11 is as shown Figure 4 shown.

[0038] In the embodiment of the present application, the pile foundation assembly 100 is first manufactured before the wall body 200 of the pile-board wall is manufactured. During the manufacturing process of the pile foundation assembly 100, the inner water bag 13 and the outer water bag 14 are first connected to the steel cage 12 as a whole, and are arranged in the casing 15. Concrete is poured in the casing 15 to form the pile foundation 11. The inner water bag 13 and the outer water bag 14 are not wrapped by concrete, and occupy a certain space, which is equivalent to the pile foundation 11 formed in the casing 15 later having a gap occupied by the inner water bag 13 and the outer water bag 14. In the embodiment of the present application, when manufacturing the pile foundation 11, the inner water bag 13 and the outer water bag 14 are arranged on the steel cage 12 to compensate for the space of the binding area. The connection between the steel cage 12, the inner water bag 13 and the outer water bag 14 can be completed outside the casing 15, and there is no need to arrange a complex space compensation structure in the casing 15, and it basically does not affect the pouring process of the concrete of the pile foundation 11, which has high feasibility.

[0039] In the subsequent process of manufacturing the wall 200, the water in the inner water bag 13 and the outer water bag 14 is discharged, and a binding space can be formed at the gap of the pile foundation 11, which is convenient for binding the wall reinforcement 201 with the reinforcement cage 12 exposed at the gap, and then pouring concrete to form a wall 200 combined with the pile foundation 11. In the embodiment of the present application, the water in the inner water bag 13 and the outer water bag 14 is discharged to release the space during the process of manufacturing the wall 200 after the pile foundation 11 is manufactured. There is no need to chisel out the solidified concrete of the pile foundation 11 itself, and there is no need to use equipment such as an air compressor, and basically no noise is generated.

[0040] Moreover, releasing water at a low place can drain water from a high place without the need for high-altitude operations, which can free up the cost of binding space and eliminate the risk of high-altitude operations in the process.

[0041] Moreover, it is only necessary to drain the inner water bag 13 and the outer water bag 14 of each pile foundation 11, which is easy to operate, can improve the manufacturing efficiency of the pile-board wall, reduce the exposure time of the foundation pit area 300, and is beneficial to the structural safety.

[0042] In addition, there is basically no vibration during the drainage process, which will not affect the surrounding earthwork structures, retaining structures, etc., and has strong safety.

[0043] In some possible embodiments, after pouring concrete in the casing 15 , there may be laitance between the casing 15 and the outer water bag 14 . In the subsequent process of draining the outer water bag 14 , the laitance is first removed to expose the outer water bag 14 .

[0044] It should be noted that in the embodiment of the present application, the inner water bag 13 and the outer water bag 14 can each occupy a part of the space so that the pile foundation 11 has a cavity or a gap. In the embodiment of the present application, only the inner water bag 13 can be set, or only the outer water bag 14 can be set, or the inner water bag 13 and the outer water bag 14 can be set at the same time, and both can occupy at least part of the space, so as to achieve the operation of eliminating the need to chisel out at least part of the concrete, and can improve the manufacturing efficiency of the pile-board wall.

[0045] Optionally, before the above step S101, it further includes: measuring and positioning; positioning the drilling area of ​​the pile foundation 11 to facilitate the burying of the casing 15. Drilling is performed using a drilling rig so that the casing 15 is buried at the designed depth.

[0046] Optionally, a crane may be used to hoist the steel cage assembly into the casing 15 .

[0047] In some possible embodiments, before the steel cage assembly is arranged in the casing 15 in the above step S103, the following steps are also included: Make a steel cage 12. Please refer to Figure 2 The steel cage 12 includes a plurality of vertical steel bars 121 arranged at intervals along the circumferential direction, and spiral bars 122 spirally wound around the vertical steel bars 121 .

[0048] An inner water bag 13 is manufactured and at least one flexible first connecting member is connected to the outer peripheral surface of the inner water bag 13 .

[0049] An outer water bag 14 is manufactured and at least one flexible second connecting member is connected to the outer peripheral surface of the outer water bag 14 .

[0050] In this embodiment, before the steel cage assembly is set in the casing 15, the steel cage 12, the inner water bag 13 and the outer water bag 14 are first made outside the casing 15, and the first connecting piece and the second connecting piece are respectively connected to the inner water bag 13 and the outer water bag 14, so as to facilitate the subsequent direct use of the steel cage 12, the inner water bag 13 and the outer water bag 14 to form a steel cage assembly.

[0051] In some possible embodiments, before the steel cage assembly is arranged in the casing 15 in the above step S103, the following steps are also included: The inner water bag 13 is tied to the steel cage 12 by a first connecting piece, so that part of the outer circumference of the inner water bag 13 contacts or abuts against the vertical steel bars 121 in the connection area between the pile foundation assembly 100 and the wall 200 along the circumference of the steel cage 12.

[0052] The outer water bag 14 is tied to the steel cage 12 through the second connecting piece, so that the outer peripheral surfaces on both sides of the outer water bag 14 are in contact or abut against the spiral ribs 122 and the inner peripheral wall of the casing 15 in the joint area.

[0053] In this embodiment, the inner water bag 13 and the outer water bag 14 are connected to the steel cage 12 in advance, covering part of the inner and outer surfaces of the steel cage 12, so that part of the steel cage 12 is sandwiched between the inner water bag 13 and the outer water bag 14, thereby allowing a gap to be created between the subsequent concrete, casing 15 and the sandwiched steel cage 12, which serves as the bonding area between the subsequent pile foundation assembly 100 and the wall 200, thereby releasing the binding space without removing the concrete covering the steel cage 12, thereby exposing the steel cage 12 connected to the wall steel bars 201.

[0054] Since the wall 200 of the pile-sheet wall is manufactured in layers, the upper wall 200 is manufactured first, and then the earthwork of the foundation pit area 300 of the lower layer is excavated, while the pile foundation 11 is directly manufactured as a whole without the need for layered manufacturing. The height of the pile foundation 11 is consistent with the height of the wall 200.

[0055] Therefore, in some possible embodiments, both the inner water bag 13 and the outer water bag 14 extend in the vertical direction, and there are at least two of them, which are stacked in the vertical direction.

[0056] The inner side of the inner water bag 13 is close to or overlaps with the inner edge of the connection area between the pile foundation assembly 100 and the wall 200 .

[0057] In this embodiment, the entire pile foundation 11 and the inner water bag 13 and the outer water bag 14 of the corresponding height are first formed. There are multiple inner water bags 13 and outer water bags 14, at least one of which corresponds to the height of a layer of wall 200, so that in the process of manufacturing the upper layer of wall 200, only the water of the upper inner water bag 13 and the outer water bag 14 needs to be discharged, and the water of other water bags below is ensured not to be discharged, and the gap of the pile foundation 11, that is, the bonding area between the pile foundation 11 and the wall 200, is continuously filled, so that in the process of manufacturing the upper layer of wall 200, it is prevented that debris falls into the gap of the pile foundation 11 corresponding to the lower layer of wall 200, thereby affecting the manufacturing process of the lower layer of wall 200 and affecting the quality of the lower layer of wall 200.

[0058] For some possible embodiments, please refer to Figure 5 The lowest point of the inner water bag 13 is not higher than the bottom of the foundation pit area 300 of the pile-sheet wall.

[0059] In this embodiment, the inner water bag 13 extends all the way to the bottom of the foundation pit area 300 of the lowest layer of the pile-board wall or even extends below the bottom of the pit, ensuring that after the water in the inner water bag 13 is discharged, the exposed steel cage 12 can be exposed to the foundation pit area 300 in the horizontal direction, thereby enabling all the steel bars of the wall 200 manufactured in the foundation pit area 300 to be effectively connected to the exposed steel cage 12.

[0060] In some possible embodiments, the lowest point of the outer water bag 14 is not higher than the bottom of the foundation pit area 300 of the pile-board wall.

[0061] Optionally, the top and bottom ends of the outer water bag 14 and the inner water bag 13 are flush.

[0062] In some possible embodiments, pouring concrete in the casing 15 in the above step S104 includes the following steps: The conduit is extended into the steel cage 12 at a position away from the inner water bag 13 .

[0063] The soil in the casing 15 is tested, and if the test result is in compliance with the pouring requirements, the conduit is used to pour concrete.

[0064] In this embodiment, after the steel cage assembly is arranged in the casing 15, the concrete is poured into the casing 15 through a conduit. Before pouring, the soil in the casing 15 is tested, for example, the quantity and properties of the soil are tested to confirm whether it meets the standards corresponding to the pouring requirements. If it meets the standards, the conduit is used to pour concrete to ensure that the pile foundation 11 finally formed meets the quality standards, thereby ensuring the construction quality of the pile-board wall.

[0065] Optionally, after the pile foundation 11 is formed, the casing 15 is removed and other pile foundations 11 are manufactured.

[0066] Based on the same inventive concept, the present application also provides a method for manufacturing a pile-board wall. The flow chart of the method is as follows: Figure 6 As shown, the method includes the following steps S201-S204: S201: Excavate the earthwork of the foundation pit area 300 on the wall 200 side of the pile-sheet wall to expose the outer peripheral surface of the outer water bag 14 of any pile foundation assembly 100 provided in the above embodiments. The foundation pit area 300 includes a wall area 301, and the area where the wall area 301 intersects with the pile foundation assembly 100 is a joint area.

[0067] S202: draining the water in the outer water bag 14 and the inner water bag 13 to expose the steel cage 12 of the pile foundation assembly 100 and release the binding space belonging to the joint area.

[0068] S203 : horizontally disposing the wall reinforcement 201 in the binding space of at least one pile foundation assembly 100 , and binding it with the reinforcement cage 12 .

[0069] S204: Concrete is poured in the wall area 301 to wrap the wall reinforcement 201 and the reinforcement cage 12 exposed from the pile foundation 11, thereby obtaining the wall 200. The wall 200 is fixedly connected to the pile foundation 11 of the pile foundation assembly 100 to form a pile-sheet wall. Optionally, the structural schematic diagram of the pile-sheet wall obtained after this step is as follows: Figure 7 shown.

[0070] In this embodiment, the pile foundation assembly 100 is manufactured by using any of the manufacturing methods of the pile foundation assembly 100 provided in the above embodiments, and its implementation principle and specific structure are similar, which will not be described in detail here.

[0071] In this embodiment, the earthwork of the foundation pit area 300 is excavated to expose the pile foundation assembly 100, so as to facilitate the discharge of water in the outer water bag 14 and the inner water bag 13. After the water is discharged, the gap of the pile foundation 11 is exposed, so that the joint area where the wall area 301 and the pile foundation assembly 100 intersect is released, so as to facilitate the binding of the wall reinforcement 201 with the exposed reinforcement cage 12, thereby forming a pile-board wall. Compared with the solution of chiseling away part of the concrete of the pile foundation 11 to expose the reinforcement cage 12 in the related art, the embodiment of the present application discharges the water of the inner water bag 13 and the outer water bag 14 for space release during the process of manufacturing the pile foundation 11 and the wall 200, without the need to use air compressors and other equipment to chisel away the concrete, and basically no noise is generated.

[0072] Moreover, releasing water at a low place can drain water from a high place without the need for high-altitude operations, which can free up the cost of binding space and eliminate the risk of high-altitude operations in the process.

[0073] Moreover, it is only necessary to drain the inner water bag 13 and the outer water bag 14 of each pile foundation 11, which is easy to operate, can improve the manufacturing efficiency of the pile-board wall, reduce the exposure time of the foundation pit area 300, and is beneficial to the structural safety.

[0074] In addition, there is basically no vibration during the drainage process, which will not affect the surrounding earthwork structures, retaining structures, etc., and has strong safety.

[0075] In some embodiments, the wall 200 of the pile-sheet wall is manufactured layer by layer, first manufacturing the upper wall segment, and then manufacturing the lower wall segment in sequence. Therefore, in some possible embodiments, the excavation of the foundation pit area 300 on the side of the wall 200 of the pile-sheet wall in the above step S201 to expose the outer peripheral surface of the outer water bag 14 of any pile foundation assembly 100 provided in the first aspect above includes the following steps: The first layer of earthwork in the foundation pit area 300 is removed to expose the outer peripheral surface of an outer water bag 14 of the pile foundation assembly 100 .

[0076] Furthermore, the step S204 of pouring concrete in the foundation pit area 300 to wrap the wall reinforcement 201 and the reinforcement cage 12 exposed from the pile foundation 11 to obtain the wall 200 includes the following steps: A first layer of concrete is poured in the foundation pit area 300 to wrap the first layer of wall reinforcement 201 and the first layer of reinforcement cage 12 exposed from the pile foundation 11 to obtain a first layer of wall section.

[0077] In this embodiment, during the initial process of manufacturing the first layer of wall segments, the first layer of earth in the foundation pit area 300 is first excavated to expose the outer peripheral surface of an outer water bag 14 of the pile foundation assembly 100. After the water in the exposed outer water bag 14 is discharged, the water in the inner water bag 13 is continued to be discharged to expose the connecting area corresponding to the first layer of wall segments, and the wall steel bars 201 are tied to the steel cage 12 in the connecting area to manufacture the first layer of wall segments.

[0078] In some possible embodiments, the excavation of the foundation pit area 300 on the wall 200 side of the pile-sheet wall in the above step S201 to expose the outer peripheral surface of the outer water bag 14 of any pile foundation assembly 100 provided in the above first aspect includes the following steps: A layer of earth located below the upper wall segment in the foundation pit area 300 is excavated to expose the outer peripheral surface of an outer water bag 14 of the pile foundation assembly 100 .

[0079] Furthermore, the step S204 of pouring concrete in the foundation pit area 300 to wrap the wall reinforcement 201 and the reinforcement cage 12 exposed from the pile foundation 11 to obtain the wall 200 includes the following steps: In the space of the wall area 301 below the upper wall segment, a layer of concrete is poured to wrap a layer of wall reinforcement 201 and a layer of reinforcement cage 12 exposed from the pile foundation 11, thereby obtaining a layer of wall segment.

[0080] In this embodiment, after the first layer of wall segments is manufactured, the lower layer of wall segments is manufactured in sequence. Specifically, a layer of earthwork in the foundation pit area 300 is excavated to expose the outer peripheral surface of a layer of outer water bag 14 of the pile foundation assembly 100. After the water in the exposed layer of outer water bag 14 is discharged, the water in a layer of inner water bag 13 is discharged to expose the joint area corresponding to this layer of wall segments, and the wall reinforcement 201 is tied to the reinforcement cage 12 in the joint area to manufacture a layer of wall segments. This process is repeated until all wall segments are manufactured, and the entire wall 200 is manufactured.

[0081] Based on the same inventive concept, an embodiment of the present application also provides a pile foundation assembly 100 manufactured by the manufacturing method of any pile foundation assembly 100 provided in the above embodiments, comprising: a pile foundation 11, a steel cage 12 exposed outside the pile foundation 11, an inner water bag 13 and an outer water bag 14.

[0082] The pile foundation 11 is formed by partially enclosing a steel cage 12 with concrete.

[0083] The inner water bag 13 is connected to the inner peripheral wall of the steel cage 12 exposed outside the pile foundation 11 .

[0084] The outer water bag 14 is connected to the outer peripheral wall of the steel cage 12 exposed outside the pile foundation 11 .

[0085] In this embodiment, the pile foundation assembly 100 is manufactured by using any of the manufacturing methods of the pile foundation assembly 100 provided in the above embodiments, and its implementation principle and specific structure are similar, which will not be repeated here. The inner water bag 13 and the outer water bag 14 in this embodiment are arranged at the notch of the pile foundation 11. In the subsequent process of manufacturing the wall 200, the water in the inner water bag 13 and the outer water bag 14 is discharged, and the notch of the pile foundation 11 can form a binding space, which is convenient for binding the wall reinforcement 201 with the reinforcement cage 12 exposed at the notch, and then pouring concrete to form a wall 200 combined with the pile foundation 11.

[0086] In some possible embodiments, there are multiple inner water bags 13. Multiple layers of each inner water bag 13 are vertically stacked. Each inner water bag 13 has an opening and an opening cover screwed to the opening.

[0087] In this embodiment, at least one inner water bag 13 corresponds to a layer of wall segment. The inner water bag 13 is drained through the opening to release the corresponding bonding area of ​​the wall segment, which is convenient for binding the wall reinforcement 201 and the reinforcement cage 12 to form the wall segment.

[0088] In some possible embodiments, there are multiple outer water bags 14. Each outer water bag 14 is vertically stacked in multiple layers. Each outer water bag 14 has an opening and an opening cover screwed to the opening.

[0089] In this embodiment, at least one outer water bag 14 corresponds to a layer of wall segment. The outer water bag 14 is drained through the opening to release the corresponding bonding area of ​​the wall segment, which is convenient for binding the wall reinforcement 201 and the reinforcement cage 12 to form the wall segment.

[0090] In some possible embodiments, the material of the inner water bag 13 includes polyvinyl chloride and has a smooth outer surface.

[0091] In this embodiment, the inner water bag 13 made of polyvinyl chloride is corrosion-resistant, high-temperature-resistant, and scratch-resistant, and has high reliability. Moreover, the smooth outer surface has a weak adhesion to concrete and is easily peeled off from the pile foundation 11, thereby improving the working efficiency.

[0092] In some possible embodiments, the material of the outer water bladder 14 includes polyvinyl chloride and has a smooth outer surface.

[0093] In this embodiment, the outer water bag 14 made of polyvinyl chloride is corrosion-resistant, high-temperature-resistant, and scratch-resistant, and has high reliability. Moreover, the smooth outer surface has a weak adhesion to concrete and is easily peeled off from the pile foundation 11, thereby improving the working efficiency.

[0094] Optionally, the inner water bag 13 can be made of three layers of stacked materials. Specifically, a polyvinyl chloride layer, a polyester fiber mesh layer and a polyvinyl chloride layer are stacked to form the material for making the inner water bag 13. The inner and outer surfaces of the inner water bag 13 are both polyvinyl chloride layers, which have strong load-bearing capacity, are resistant to sunlight and high temperature, are not prone to water leakage and are more durable.

[0095] Optionally, the outer water bag 14 can be made of three layers of stacked materials. Specifically, a polyvinyl chloride layer, a polyester fiber mesh layer and a polyvinyl chloride layer are stacked to form the material for making the outer water bag 14. The inner and outer surfaces of the outer water bag 14 are both polyvinyl chloride layers, which have strong load-bearing capacity, are resistant to sunlight and high temperature, are not easy to leak and are more durable.

[0096] By applying the embodiments of the present application, at least the following beneficial effects can be achieved: In the embodiment of the present application, the pile foundation assembly 100 is first manufactured before the wall body 200 of the pile-board wall is manufactured. During the manufacturing process of the pile foundation assembly 100, the inner water bag 13 and the outer water bag 14 are first connected to the steel cage 12 as a whole, and are arranged in the casing 15. Concrete is poured in the casing 15 to form the pile foundation 11. The inner water bag 13 and the outer water bag 14 are not wrapped by concrete, and occupy a certain space, which is equivalent to the pile foundation 11 formed in the casing 15 later having a gap occupied by the inner water bag 13 and the outer water bag 14. In the embodiment of the present application, when manufacturing the pile foundation 11, the inner water bag 13 and the outer water bag 14 are arranged on the steel cage 12 to compensate for the space of the binding area. The connection between the steel cage 12, the inner water bag 13 and the outer water bag 14 can be completed outside the casing 15, and there is no need to arrange a complex space compensation structure in the casing 15, and it basically does not affect the pouring process of the concrete of the pile foundation 11, which has high feasibility.

[0097] In the subsequent process of manufacturing the wall 200, the water in the inner water bag 13 and the outer water bag 14 is discharged, and a binding space can be formed at the gap of the pile foundation 11, which is convenient for binding the wall reinforcement 201 with the reinforcement cage 12 exposed at the gap, and then pouring concrete to form a wall 200 combined with the pile foundation 11. In the embodiment of the present application, the water in the inner water bag 13 and the outer water bag 14 is discharged to release the space during the process of manufacturing the wall 200 after the pile foundation 11 is manufactured. There is no need to chisel out the solidified concrete of the pile foundation 11 itself, and there is no need to use equipment such as an air compressor, and basically no noise is generated.

[0098] Moreover, releasing water at a low place can drain water from a high place without the need for high-altitude operations, which can free up the cost of binding space and eliminate the risk of high-altitude operations in the process.

[0099] Moreover, it is only necessary to drain the inner water bag 13 and the outer water bag 14 of each pile foundation 11, which is easy to operate, can improve the manufacturing efficiency of the pile-board wall, reduce the exposure time of the foundation pit area 300, and is beneficial to the structural safety.

[0100] In addition, there is basically no vibration during the drainage process, which will not affect the surrounding earthwork structures, retaining structures, etc., and has strong safety.

[0101] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0102] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0103] The above is only a partial implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the technical concept of the scheme of the present application, other similar implementation methods based on the technical ideas of the present application are also within the protection scope of the embodiments of the present application.

Claims

1. A method for manufacturing a pile foundation assembly, characterized in that: include: Bury hollow casing in the pile foundation area; removing soil from the casing; A steel cage assembly is arranged in the casing, wherein the steel cage assembly includes a steel cage and at least one of an inner water bag connected to the inner peripheral wall of the steel cage and an outer water bag connected to the outer peripheral wall of the steel cage; Concrete is poured in the casing so that the concrete wraps part of the steel cage to form a pile foundation; the pile foundation assembly includes the pile foundation, the steel cage exposed outside the pile foundation, the inner water bag and the outer water bag; at least part of the outer circumference of the outer water bag is exposed from the pile foundation.

2. The method for manufacturing a pile foundation assembly according to claim 1, characterized in that: Before the steel cage assembly is arranged in the casing, the method further comprises: The steel cage is manufactured; the steel cage comprises a plurality of vertical steel bars arranged at intervals in the circumferential direction, and spiral bars spirally wound around each of the vertical steel bars; Making the inner water bag and connecting at least one flexible first connecting member to the outer peripheral surface of the inner water bag; The outer water bag is manufactured and at least one flexible second connecting member is connected to the outer peripheral surface of the outer water bag.

3. The method for manufacturing a pile foundation assembly according to claim 2, characterized in that: Before the steel cage assembly is arranged in the casing, the method further comprises: The inner water bag is tied to the steel cage by the first connecting member, so that part of the outer peripheral surface of the inner water bag contacts or abuts against the vertical steel bars in the joint area between the pile foundation assembly and the wall along the circumference of the steel cage; The outer water bag is tied to the steel cage through the second connecting piece, so that the outer peripheral surfaces on both sides of the outer water bag are respectively in contact with or abut against the spiral reinforcement and the inner peripheral wall of the casing in the combining area.

4. The method for manufacturing a pile foundation assembly according to claim 1, characterized in that: There are at least two inner water bags and at least two outer water bags, which are stacked vertically; The inner side of the inner water bag is close to or overlaps with the inner edge of the joining area between the pile foundation assembly and the wall.

5. The method for manufacturing a pile foundation assembly according to claim 1, characterized in that: The lowest point of the inner water bag is not higher than the bottom of the foundation pit area of ​​the pile-sheet wall.

6. The method for manufacturing a pile foundation assembly according to claim 1, characterized in that: Pouring concrete in the casing comprises: Extending the conduit into the steel cage at a position away from the inner water bag; The soil in the casing is tested, and if the test result is in compliance with the pouring requirements, the conduit is used to pour concrete.

7. A method for manufacturing a pile-board wall, characterized in that: include: Excavate the earthwork of the foundation pit area on the wall side of the pile-sheet wall to expose the outer peripheral surface of the outer water bag of the pile foundation assembly described in any one of claims 1 to 6; the foundation pit area includes the wall area, and the area where the wall area intersects with the pile foundation assembly is the bonding area; Draining the water in the outer water bag and the inner water bag to expose the steel cage of the pile foundation assembly and release the binding space of the combined area; The wall reinforcement is horizontally arranged in the binding space of at least one pile foundation assembly and is bound with the reinforcement cage; Concrete is poured in the wall area to wrap the wall reinforcement and the reinforcement cage exposed from the pile foundation to obtain the wall; the wall is fixedly connected to the pile foundation of the pile foundation assembly to form the pile-board wall.

8. The method for manufacturing a pile-sheet wall according to claim 7, characterized in that: Excavating the earthwork in the foundation pit area on the wall side of the pile-sheet wall to expose the outer peripheral surface of the outer water bag of the pile foundation assembly described in any one of claims 1 to 6, comprising: Excavating the first layer of earth in the foundation pit area or a layer of earth below the upper wall segment to expose the outer peripheral surface of an outer water bag of the pile foundation assembly; And, pouring concrete in the foundation pit area to wrap the wall reinforcement and the reinforcement cage exposed from the pile foundation to obtain the wall, including: pouring a first layer of concrete in the foundation pit area, wrapping the first layer of wall reinforcement and the first layer of reinforcement cage exposed from the pile foundation, to obtain a first layer of wall section; Alternatively, a layer of concrete is poured in the space belonging to the wall area below the upper wall segment to wrap a layer of the wall reinforcement and a layer of the reinforcement cage exposed from the pile foundation to obtain a layer of wall segment.

9. A pile foundation assembly manufactured based on the manufacturing method of the pile foundation assembly according to any one of claims 1 to 6, characterized in that: include: A pile foundation formed by enclosing a portion of the steel cage with concrete; A steel cage exposed outside the pile foundation; An inner water bag connected to the inner peripheral wall of the steel cage exposed outside the pile foundation; The outer water bag is connected to the outer peripheral wall of the steel cage exposed outside the pile foundation.

10. The pile foundation assembly according to claim 9, characterized in that: Include at least one of the following: There are multiple inner water bags; each inner water bag is stacked vertically in multiple layers; the inner water bag has an opening, and an opening cover screwed to the opening; There are multiple outer water bags; each of the outer water bags is stacked vertically in multiple layers; The outer water bag has an opening and an opening cover spirally connected to the opening; The material of the inner water bag includes polyvinyl chloride and has a smooth outer surface; The material of the outer water bag includes polyvinyl chloride and has a smooth outer surface.

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