CN220099887U - Pile testing cap template, pile testing cap and pile testing - Google Patents
Pile testing cap template, pile testing cap and pile testing Download PDFInfo
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- CN220099887U CN220099887U CN202321401049.9U CN202321401049U CN220099887U CN 220099887 U CN220099887 U CN 220099887U CN 202321401049 U CN202321401049 U CN 202321401049U CN 220099887 U CN220099887 U CN 220099887U
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- 238000012360 testing method Methods 0.000 title claims abstract description 85
- 239000000725 suspension Substances 0.000 claims description 16
- 238000010276 construction Methods 0.000 abstract description 27
- 238000005266 casting Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 238000009415 formwork Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
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- 239000002994 raw material Substances 0.000 description 1
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Abstract
The utility model discloses a pile cap template for a test pile, a pile cap and a test pile, and relates to the field of pile foundation engineering, comprising a template body and a centering mechanism; the inner part of the template body is used for forming the pile cap, the top of the template body is provided with an opening, the bottom of the template body can be provided with an embedding hole, and the size of the embedding hole is the same as the cross section of the pile body; the centering mechanism is fixedly connected to the outer wall of the template body, the centering mechanism is provided with at least four points which are used for being attached to the outer wall of the pile body, the four points are equally divided into two groups, centering can be completed by utilizing the geometric relationship that a straight line connected with the two points in each group is parallel to the central axis of the template and the distance is the radius of the test pile, a pile cap can be formed after filling concrete, the test pile can be formed after concrete forming, the technical problems of accurately corresponding the stress centers of the test pile and the pile cap and simplifying the construction flow are solved, accurate convenient centering is realized, and integral casting and integral construction of the test pile are realized.
Description
Technical Field
The utility model relates to the technical field of pile foundation engineering, in particular to a pile cap template for a pile test, a pile cap for the pile test and the pile test.
Background
The test pile is usually a pile foundation engineering test short pile which is driven into the ground before actual construction and is used for testing the bearing capacity of the foundation and the soil layer condition. The pile cap of the test pile is arranged at the upper end of the test pile, so that the bearing stability of the pile body is ensured, and the position of the pile head of the building component is not easy to crack. After the test pile is driven into the ground, the pile cap is required to be constructed at the upper end of the test pile, so that the test pile can bear better force in the test. The pile cap positioning usually adopts a paying-off method, after a test pile is driven into the ground, positioning and paying-off are manually carried out, and then the pile cap is poured by supporting a mould according to the paying-off position. However, because the construction of the pile cap requires that the stress center corresponds to the test pile center accurately, the pouring construction of the whole pile cap is troublesome, and the working efficiency is affected. In chinese patent 202120618928.1, a "quick installation and positioning tool for a concrete precast pile cap and a formwork" is disclosed, where the positioning tool uses a core filling concrete supporting plate disposed in an inner cavity of a pile to connect with a central shaft post to determine a geometric center of the pile, and uses a formwork caliper to determine a correspondence between a position of the formwork and the geometric center of the pile, so as to realize centering of the pile cap and the pile, but the positioning tool cannot be applied to a solid test pile. For the test pile, the pile cap is in a symmetrical shape, the test pile is in a cylinder, and the load is vertically downwards or upwards applied during the experiment, so that the geometric centers of the pile cap and the test pile are the stress centers of the pile cap and the test pile, and how to accurately correspond the stress centers of the test pile and the pile cap and simplify the construction process becomes a technical problem to be solved urgently in the field.
Disclosure of Invention
The utility model aims to provide a pile testing cap template, a pile testing cap and a pile testing, which are used for solving the problems of the prior art, enabling the stress centers of a pile body and the pile cap to be accurately corresponding and simplifying the construction flow.
In order to achieve the above object, the present utility model provides the following solutions:
the utility model provides a test pile cap template, which comprises a template body and a centering mechanism; the pile cover is formed in the template body, an opening is formed in the top of the template body, an embedding hole can be formed in the bottom of the template body, and the size of the embedding hole is the same as the cross section of the pile body; the centering mechanism is fixedly connected to the outer wall of the template body, at least four points used for being attached to the outer side wall of the template body are a first attaching point, a second attaching point, a third attaching point and a fourth attaching point respectively, the first attaching point and the second attaching point are located on a first straight line, the third attaching point and the fourth attaching point are located on a second straight line, the first straight line and the second straight line are parallel to the central axis of the template body, and the distance from the first straight line and the second straight line to the central axis of the template body is the radius of the cross section of the template body.
Preferably, the centering mechanism comprises at least two centering contact pieces, each centering contact piece comprises a connecting piece and an alignment plate, one end of the connecting piece is fixedly connected with the outer wall of the template body, the position, closest to the pile body, of the connecting piece is fixedly connected with the alignment plate, the alignment plate is used for being tightly attached to the outer surface of the pile body, one alignment plate is provided with the first attachment point and the second attachment point on the surface attached to the outer surface of the pile body, and the other alignment plate is provided with the third attachment point and the fourth attachment point on the surface attached to the outer surface of the pile body.
Preferably, the alignment plate is a rectangular plate body, and the surface of the alignment plate, which is used for being in contact with the pile body, is parallel to the central axis of the template body.
Preferably, the connecting piece comprises a lower suspension plate and a transverse frame plate, the cross section of the lower suspension plate is perpendicular to that of the template body, the lower end of the lower suspension plate is fixedly connected with the transverse frame plate, and the transverse frame plate is perpendicular to the lower suspension plate; and one end of the transverse frame plate, which is far away from the lower suspension plate, is fixedly connected with the alignment plate.
Preferably, the device further comprises a support mechanism, one end of the support mechanism is fixedly connected with the template body, and the other end of the support mechanism is used for being supported on the ground.
Preferably, the support mechanism comprises at least three support legs, one end of each support leg is rotatably connected with the template body around a rotation axis, the other end of each support leg is used for being supported on the ground, and the rotation axis is perpendicular to the central axis of the template body.
Preferably, the landing leg comprises a supporting plate and a supporting foot seat, a movable frame groove is formed in the outer side wall of the template body, a movable rod is rotatably connected in the movable frame groove around the axis of the movable rod, the axis of the movable rod is collinear with the rotation axis, the outer surface of the movable rod is fixedly connected with the supporting plate, and the bottom end of the supporting plate is fixedly connected with the supporting foot seat.
Preferably, the template body is including stacking in proper order and fixed connection's end clamp anchor clamps platform, well cushion cap and last cushion cap, go up the cushion cap with it is square staving to put the cushion cap, it is circular staving to put the clamp anchor clamps platform, put the cushion cap with go up the equal upper end opening of cushion cap, go up the cushion cap diapire middle part position be provided with put the last intercommunication mouth of cushion cap upper end opening intercommunication, put the cushion cap diapire middle part position be provided with the well intercommunication mouth of end clamp anchor upper end opening intercommunication, the embedding hole can be seted up to end clamp anchor clamps platform diapire middle part position, the embedding hole can closely laminate with the stake external surface.
The utility model also provides a pile testing cap, which comprises the pile cap and the pile testing cap template, wherein the pile cap is formed by filling concrete into the template body.
The utility model also provides a test pile, which comprises a pile body and the test pile cap, wherein the pile body is embedded into the pile cap.
Compared with the prior art, the utility model has the following technical effects:
the centering mechanism is provided with at least four points for being attached to the outer side wall of the pile body, namely a first attaching point, a second attaching point, a third attaching point and a fourth attaching point, the distances from the second straight line where the first attaching point and the second attaching point are located and the second straight line where the third attaching point and the fourth attaching point are located to the central axis of the template body are all the diameters of the cross section of the pile body, the centering structure is attached to the pile body to enable the central axis of the template body to coincide with the central axis of the pile body, the placement position of the template body can be determined, accurate correspondence between the pile cap and the stress center of the pile body is realized, and the step of manually paying off and positioning the template is omitted. After the position of the template body is determined, lines are drawn at the bottom of the template body through the outline of the outer surface of the pile body at the determined position, an embedding hole is formed in the line drawing position, the pile body can extend into the template body through the embedding hole, the opening of the top of the template body is filled with concrete inwards, a pile cap connected with the pile body can be formed after the concrete is formed, and at the moment, the pile cap is embedded into the pile body to complete construction of a test pile. Therefore, the pile cap template for the test pile can finish accurate alignment of the stress center of the test pile and the pile cap, simplify the construction flow, form the pile cap after filling concrete and forming the pile cap, and finish construction of the test pile after the pile cap is embedded into the pile body.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of an angle of a pile cap template for a test pile provided by the utility model;
FIG. 2 is a schematic perspective view of another angle of the pile cap template according to the present utility model;
FIG. 3 is a top view of a test pile cap template provided by the utility model;
FIG. 4 is a schematic perspective view of a leg of a test pile cap template provided by the utility model;
in the figure: 11-pile body, 2-template body, 21-bottom clamping platform, 211-embedding hole, 22-middle bearing platform, 23-upper bearing platform, 3-centering mechanism, 31-connecting piece, 311-lower suspension plate, 312-transverse frame plate, 32-aligning plate, 41-movable frame groove, 42-movable rod, 51-supporting leg, 511-supporting plate and 512-supporting leg seat.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model aims to provide a pile cap template for a test pile, a pile cap for the test pile and the test pile, which solve the problems in the prior art, ensure that the stress center of the pile cap is accurately corresponding to the stress center of the test pile, simplify the construction process and improve the construction efficiency.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
Example 1
The embodiment provides a pile cap template for test piles, which comprises a template body 2 and a centering mechanism 3, wherein the template body 2 is internally used for forming pile caps, the top of the template body 2 is provided with an opening, the bottom of the template body 2 can be provided with an embedding hole 211, and the size of the embedding hole 211 is the same as the cross section of a pile body 11; the centering mechanism 3 is fixedly connected to the outer wall of the template body 2, the centering mechanism 3 is provided with at least four points for being attached to the outer side wall of the pile body 11, the at least four points are a first attaching point, a second attaching point, a third attaching point and a fourth attaching point, the first attaching point and the second attaching point are located on a first straight line, the third attaching point and the fourth attaching point are located on a second straight line, the first straight line and the second straight line are parallel to the central axis of the template body 2, and the distances from the first straight line and the second straight line to the central axis of the template body 2 are all the radius of the cross section of the pile body 11.
The pile cap template for the test pile is suitable for construction of the pile cap for the test pile, when the pile body 11 is driven into the ground during construction, at least four bonding points on the centering mechanism 3 meet the requirement that connecting lines of the first bonding point and the second bonding point, connecting lines of the third bonding point and connecting lines of the fourth bonding point are parallel to a central axis, the distance between the connecting lines is determined to be the radius of the pile body 11, and according to the geometric relationship, the center of the template body 2 and the center of the pile body 11 can be ensured to be on the same vertical line after the four points are bonded, so that the position where the template body 2 needs to be placed can be determined; then, the bottom surface of the template body 2 is marked according to the position of the outline of the outer surface of the pile body 11 determined by centering, and a tool is used for reaming to form an embedded hole 211, and the pile body 11 can slide and prop against the inner surface of the embedded hole 211 to move; then grouting inwards through the top opening, forming the concrete to form the pile cap of the test pile, and embedding the pile body 11 into the pile cap to complete the construction of the test pile of the utility model; when the test pile detection test is qualified, the template body 2 can be reserved at the outer end of the pile cap, the outer surface of concrete can be protected, when the test pile detection test is unqualified, the pile body 11 is removed, and the whole test pile cap template is removed for casting of other test pile caps. The template and the pile body center can be accurately corresponding without manual paying-off during construction, the pile body 11 can be directly formed into the pile body after grouting, the pile body is embedded into the pile body after concrete forming, the whole construction of the pile is smoothly completed, the labor cost and centering error are reduced during the whole construction process, and the whole construction process is simplified.
In a preferred implementation manner of this embodiment, the centering mechanism 3 includes at least two centering contact members, each centering contact member includes a connecting member 31 and an alignment plate 32, one end of the connecting member 31 is fixedly connected with the outer wall of the template body 2, the nearest position of the connecting member 31 to the pile body 11 is fixedly connected with the alignment plate 32, the alignment plate 32 is used for tightly attaching to the outer surface of the pile body 11, one alignment plate 32 has a first attachment point and a second attachment point on the surface for attaching to the outer surface of the pile body 11, the other alignment plate 32 has a third attachment point and a fourth attachment point on the surface for attaching to the outer surface of the pile body 11, the placement position of the template can be determined by attaching the alignment plate 32 to the pile body 11, so that the template corresponds to the stressed center of the pile body, and the implementation procedure is simple. It should be noted that, the number of the centering contact pieces of the pile cap template for the test pile in the utility model can be set according to the requirement, and the form of the centering mechanism is not limited to the centering contact pieces in the above embodiment, for example, three centering contact pieces can be set, and the six contact points meet the above geometric relationship and are attached to the outer surface of the pile body, so that the centering can be realized conveniently.
In a preferred implementation manner of this embodiment, the alignment plate 32 is a rectangular plate, the surface of the alignment plate 32 that is used for contacting with the pile 11 is parallel to the central axis of the template body 2, and the arrangement of the position parallel to the central axis can ensure that four contact points on the alignment plate 32 are closely attached to the pile 11, so as to reduce the error of centering. It should be noted that, the shape of the alignment plate in the present utility model is not limited to a rectangular plate body, other structures may be used instead of the alignment plate, for example, an arc plate body (a plate body with an inner wall surface being a cambered surface) is used, the inner wall surface of the arc plate body is located on a cylindrical surface, the axis of the cylindrical surface is parallel to the central axis of the template body 2, the vertical distance from the diameter of the cylindrical surface to the central axis of the template body 2 is the radius of the pile body 11, at this time, any two points on the axial direction of the inner wall surface of the arc plate body are equivalent to two attachment points, four points on 2 arc plate bodies are attached to the pile body 11, and the position of the template body 2 is determined, so that the alignment effect same as that of the rectangular alignment plate 32 in the present embodiment can be achieved. The alignment plate can also adopt other irregularly-shaped plate bodies, two points on a straight line parallel to the central axis of the template body are arranged on the part of the plate body, which is used for attaching the pile body, and the distance from the straight line to the central axis of the template body is equal to the radius of the cross section of the pile body.
In a preferred implementation manner of this embodiment, the connecting piece 31 includes a lower suspension plate 311 and a transverse frame plate 312, the cross section of the lower suspension plate 31 is perpendicular to the cross section of the template body 2, the lower end of the lower suspension plate 311 is fixedly connected with the transverse frame plate 312, and the transverse frame plate 312 is perpendicular to the lower suspension plate 311; the end of the transverse frame plate 312 far away from the lower suspension plate 311 is fixedly connected with the alignment plate 32, the connecting piece 31 is connected with the template body 2 and the alignment plate 32, the position of the alignment plate 32 is kept fixed, and the vertical arrangement mode can ensure firm connection and save raw materials.
In a preferred implementation manner of this embodiment, the test pile cap template provided in this embodiment further includes a support mechanism, one end of the support mechanism is fixedly connected with the template body 2, the other end of the support mechanism is used for supporting the template body 2 on the ground, the support mechanism can support the template body 2 on the ground in construction, the support mechanism can be detached after construction is completed and can be continuously used in construction of other test pile cap templates, the stability during pouring is maintained by the arrangement of the support mechanism, and decentration in pouring is prevented.
In a preferred implementation of this embodiment, the bracing mechanism includes at least three legs 51, one end of each leg 51 is rotatably connected with the formwork body 2 around a horizontal axis, the other end is used for supporting on the ground, the at least three legs 51 can ensure the stability of the formwork body 2, and the manner of the rotational connection can meet the requirement of supporting under uneven terrain. It should be noted that, the number of the supporting legs 51 in the present utility model may be set according to the requirement, such as 5 supporting legs, so long as the supporting requirement is satisfied.
In a preferred implementation of this embodiment, the supporting leg 51 includes a supporting plate 511 and a supporting leg seat 512, a movable frame slot 41 is provided on the outer side wall of the template body 2, a movable rod is rotatably connected in the movable frame slot 41 around its own axis, the axis of the movable rod 42 is collinear with the rotation axis, the outer surface of the movable rod 42 is fixedly connected with the supporting plate 511, and the bottom end of the supporting plate 511 is fixedly connected with the supporting leg seat 512. The movable frame groove 41 and the movable rod 42 can enable the supporting leg 51 to rotate around the axis, and can be detached at any time, so that the movable frame groove is used in construction of other pile caps, and construction cost is saved.
In a preferred embodiment of the present embodiment, the formwork body 2 includes a bottom clamping table 21, a middle bearing table 22 and an upper bearing table 23 which are sequentially stacked and fixedly connected, the upper bearing table 21 and the middle bearing table 22 are square barrels, the bottom clamping table 21 is a round barrel, the bottom clamping table 21, the middle bearing table 22 and the upper bearing table 23 are all open at the upper end, an upper communication port communicated with the upper end opening of the middle bearing table 22 is formed in the middle position of the bottom wall of the upper bearing table 23, a middle communication port communicated with the upper end opening of the bottom clamping table 21 is formed in the middle position of the bottom wall of the middle bearing table 22, an embedding hole 211 can be formed in the middle position of the bottom wall of the bottom clamping table 21, the embedding hole 211 can be tightly attached to the outer surface of the pile 11, after the centering step is completed, the pile 11 enters the formwork body 2 through the embedding hole 211, grouting can be further performed from the top of the upper bearing table 23, the cross section sizes of the pile 11, the bottom clamping table 21, the middle bearing table 22 and the upper bearing table 23 are sequentially increased, the inner casting characteristics of the formwork body 2 is in a form, the form and the form is kept stable, the form and the stability is kept to have a uniform outer surface after the concrete protection effect.
Embodiment two:
the embodiment provides a pile testing cap, which comprises a pile cap and the pile testing cap template in the first embodiment, wherein the interior of the template body 2 is filled with concrete to form the pile cap. The use of the test pile cap template reduces labor cost and centering error, and simplifies the whole construction process. Pile caps can protect pile heads, can also be supported on surrounding soil bodies, prevent the pile bodies from wholly settling, and ensure better bearing force of the pile bodies in the experimental process.
Embodiment III:
the embodiment provides a test pile, which comprises a pile body and a test pile cap in the second embodiment, wherein the pile body 11 is embedded into the pile cap to complete the integral construction of the test pile. The constructed test pile can be used for experiments related to pile foundation construction.
The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.
Claims (10)
1. A pile cap template of a test pile is characterized in that: comprises a template body and a centering mechanism;
the pile cover is formed in the template body, an opening is formed in the top of the template body, an embedding hole can be formed in the bottom of the template body, and the shape and the size of the embedding hole are the same as those of the cross section of the pile body;
the centering mechanism is fixedly connected to the outer wall of the template body, the centering mechanism is provided with at least four points for being attached to the outer side wall of the template body, the at least four points are a first attaching point, a second attaching point, a third attaching point and a fourth attaching point, the first attaching point and the second attaching point are located on a first straight line, the third attaching point and the fourth attaching point are located on a second straight line, the first straight line and the second straight line are parallel to the central axis of the template body, and the distance from the first straight line and the second straight line to the central axis of the template body is the radius of the cross section of the template body.
2. A test pile cap template according to claim 1, wherein: the aligning mechanism comprises at least two aligning contact pieces, each aligning contact piece comprises a connecting piece and an aligning plate, one end of the connecting piece is fixedly connected with the outer wall of the template body, the position, closest to the pile body, of the connecting piece is fixedly connected with the aligning plate, the aligning plate is used for being tightly attached to the outer surface of the pile body, one aligning plate is provided with a first attaching point and a second attaching point on the surface attached to the outer surface of the pile body, and the other aligning plate is provided with a third attaching point and a fourth attaching point on the surface attached to the outer surface of the pile body.
3. A test pile cap template according to claim 2, characterised in that: the alignment plate is a rectangular plate body, and the surface of the alignment plate, which is used for being in contact with the pile body, is parallel to the central axis of the template body.
4. A test pile cap template according to claim 2, characterised in that: the connecting piece comprises a lower suspension plate and a transverse frame plate, the cross section of the lower suspension plate is perpendicular to that of the template body, the lower end of the lower suspension plate is fixedly connected with the transverse frame plate, and the transverse frame plate is perpendicular to the lower suspension plate; and one end of the transverse frame plate, which is far away from the lower suspension plate, is fixedly connected with the alignment plate.
5. A test pile cap template according to claim 1, wherein: the device also comprises a support mechanism, one end of the support mechanism is fixedly connected with the template body, and the other end of the support mechanism is used for being supported on the ground.
6. A test pile cap template according to claim 5, wherein: the support mechanism comprises at least three support legs, one end of each support leg is rotatably connected with the template body around a rotation axis, the other end of each support leg is used for supporting the template body on the ground, and the rotation axis is perpendicular to the central axis of the template body.
7. A test pile cap template according to claim 6, wherein: the landing leg comprises a supporting plate and a supporting foot seat, a movable frame groove is formed in the outer side wall of the template body, a movable rod is rotatably connected in the movable frame groove around the axis of the movable rod, the axis of the movable rod is collinear with the axis of rotation, the outer surface of the movable rod is fixedly connected with the supporting plate, and the bottom end of the supporting plate is fixedly connected with the supporting foot seat.
8. A test pile cap template according to claim 1, wherein: the template body is including stacking in proper order and fixed connection's end clamp anchor clamps platform, well cushion cap and last cushion cap, go up the cushion cap with it is square staving to put the cushion cap, it is circular staving to put the anchor clamps platform, put the cushion cap with it all upper end opening to go up the cushion cap, go up the cushion cap diapire middle part position be provided with put the last intercommunication mouth of cushion cap upper end opening intercommunication, put the cushion cap diapire middle part position be provided with the well intercommunication mouth of end clamp anchor upper end opening intercommunication, the embedding hole can be seted up to end clamp anchor clamps platform diapire middle part position, the embedding hole can closely laminate with the pile body external surface.
9. A pile testing cap is characterized in that: the pile testing cap comprises a pile cap and the pile testing cap template according to any one of claims 1-8, wherein concrete is filled in the template body to form the pile cap.
10. A test pile which is characterized in that: comprising a pile body and a test pile cap as claimed in claim 9, said pile body being embedded in said pile cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321401049.9U CN220099887U (en) | 2023-06-02 | 2023-06-02 | Pile testing cap template, pile testing cap and pile testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321401049.9U CN220099887U (en) | 2023-06-02 | 2023-06-02 | Pile testing cap template, pile testing cap and pile testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220099887U true CN220099887U (en) | 2023-11-28 |
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ID=88865715
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321401049.9U Active CN220099887U (en) | 2023-06-02 | 2023-06-02 | Pile testing cap template, pile testing cap and pile testing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220099887U (en) |
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2023
- 2023-06-02 CN CN202321401049.9U patent/CN220099887U/en active Active
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