CN212978692U

CN212978692U - Special-shaped pile mould

Info

Publication number: CN212978692U
Application number: CN202020471446.3U
Authority: CN
Inventors: 周兆弟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2021-04-16
Anticipated expiration: 2030-04-02

Abstract

The utility model discloses a special-shaped pile mould, which comprises more than two templates which are sequentially connected end to end in the circumferential direction to form a polygonal mould cavity; at least two adjacent templates are detachably connected or hinged; the template is provided with a plurality of thickening bulges at intervals along the longitudinal direction, a groove is formed between at least two circumferentially adjacent thickening bulges in a matched die state, and the groove is communicated with the polygonal die cavity; the utility model provides a heterotypic pile mould forms the recess between two at least adjacent thickening archs of circumference under the compound die state, and the recess is linked together with the polygon die cavity to make the heterotypic pile that makes form protruding muscle in the crossing department in polygon path section side, in order to realize the heterotypic pile that the pile sinking resistance is little of production.

Description

Special-shaped pile mould

Technical Field

The utility model relates to a precast pile makes the field, especially relates to a heterotypic pile mould.

Background

The precast pile is a building member which is precast and formed by using a mold in a factory or a construction site. The precast pile comprises a pile body and a structural framework, the structural framework is arranged on the pile body, and the adjacent precast piles are fixedly connected through connecting pieces or are connected into a whole through welding. The precast pile can be driven into the ground by a pile driver, the precast pile needs to be pressed into the ground in the process of driving the precast pile into the ground by the pile driver, and the precast pile is partially or completely sunk into the ground by pressing the ground. As one kind of precast pile, the variable cross-section precast pile comprises a polygonal large-diameter section and a polygonal small-diameter section which are sequentially alternated along the length direction, the concave-convex pile body formed by the unique structure improves the specific surface area (mainly increases the end bearing force in the side friction force technology), and the variable cross-section precast pile improves the bearing capacity and the pulling resistance of the precast pile in a mode of increasing the friction force between the pile body and the surrounding soil body, so that the variable cross-section precast pile is greatly used in pile foundation engineering. However, when the variable cross-section precast pile is driven, soil around the pile is easily gathered at the polygonal small-diameter section to form continuous holding force, so that resistance applied when the polygonal large-diameter section is driven to sink is increased sharply.

Therefore, how to provide a die for producing the special-shaped pile with low sinking resistance becomes a problem which needs to be solved urgently in the industry.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a dysmorphism stake mould for the small heterotypic stake of pile sinking resistance is produced.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the special-shaped pile mould comprises more than two templates which can be sequentially connected end to end in the circumferential direction to form a polygonal mould cavity; at least two adjacent templates are detachably connected or hinged; the template is provided with a plurality of thickening protrusions at intervals along the longitudinal direction, under the die closing state, a groove is formed between at least two circumferentially adjacent thickening protrusions, and the groove is communicated with the polygonal die cavity.

Optionally, the thickening bulge is provided with more than two molding surfaces which are sequentially arranged along the circumferential direction, and a longitudinal through groove communicated with the polygonal mold cavity is formed at the intersection of two adjacent molding surfaces of the thickening bulge; preferably, the longitudinal through groove has the same specification as the groove.

Optionally, the groove comprises at least one first inclined surface formed by the lateral end of the thickened protrusion, and the included angle between the first inclined surface and the adjacent forming surface is 91-179 degrees.

Optionally, the groove comprises an arc surface and two first inclined surfaces, and the two first inclined surfaces are in transition connection through the arc surface; or the groove comprises a second inclined surface and two first inclined surfaces, and the two first inclined surfaces are in transitional connection through the second inclined surface.

Optionally, the longitudinal end of the thickening bulge is provided with a transition surface, and the transition surface is connected and transited with the inner side of the template where the transition surface is located; the transition surface and the forming surface form an included angle of 90-179 degrees.

Optionally, the groove is through and/or intermittent in the longitudinal direction; preferably, the width of the groove gradually decreases or keeps constant in a direction away from the center of the polygonal mold cavity until reaching the bottom of the groove.

Optionally, the special-shaped pile mold comprises two end plates positioned at the longitudinal end parts of the polygonal mold cavity; the end plate comprises a large-diameter section and a small-diameter section which are connected with each other, and the small-diameter section is matched with the polygonal die cavity; and at least one end plate and/or at least one template is provided with a pumping port.

Optionally, an observation port is arranged at the top end of the special-shaped pile mould far away from the pumping port, and a turnover plate for plugging the observation port is arranged at the observation port; and/or a vibrator is arranged at the bottom end of the special-shaped pile mould and used for vibrating and compacting concrete.

Optionally, the special-shaped pile mould further comprises a jacking device, and at least in the pumping working state, the jacking device is used for adjusting the height of one end of the mould so as to enable the mould to be obliquely arranged.

Optionally, the special-shaped pile mold is provided with a longitudinally continuous material distribution port at least at the top end, and the material distribution port is communicated with the polygonal mold cavity.

The utility model has the advantages that:

compared with the prior art, the utility model provides an among the heterotypic pile mould, the template is provided with the several thickening arch along longitudinal separation, and under the compound die state, at least two adjacent thickening archs of circumference form the recess within a definite time, and recess and polygon die cavity are linked together. Therefore, the special-shaped pile manufactured by the special-shaped pile mold comprises at least one section of polygonal large-diameter section and at least one section of polygonal small-diameter section along the length direction of the special-shaped pile, the polygonal small-diameter section comprises at least three side surfaces in the circumferential direction, the intersection of the at least two side surfaces is provided with the convex rib, and when the convex rib is positioned at the intersection of the two side surfaces, the convex rib extrudes soil towards the side surface direction so as to break the continuity of the soil at the intersection of the polygonal small-diameter section. By the design, the circumferential separation function of the convex ribs on the soil around the pile can be fully exerted during pile sinking, so that the continuous holding and fixing acting force of the soil around the pile on the polygonal small-diameter section is damaged. When the polygon small-diameter section sinks under the soil, the convex ribs extrude the soil outwards, and after the polygon small-diameter section locally extrudes the soil outwards, the resistance of the polygon large-diameter section after sinking can be effectively reduced.

From the above description, the utility model provides a heterotypic pile mould sets up the recess that forms between two at least adjacent thickening archs of circumference under the compound die state, and the recess is linked together with the polygon die cavity to make the heterotypic pile that makes form protruding muscle in the crossing department in polygon path section side, in order to realize the heterotypic pile that the pile sinking resistance is little of production.

Drawings

Fig. 1 is a cross-sectional view of a groove of a special-shaped pile mold according to a first embodiment of the present invention in a closed state;

fig. 2 is a schematic structural view of a special-shaped pile mold according to a first embodiment of the present invention in a mold opening state;

fig. 3 is a schematic structural view of a special-shaped pile manufactured by a special-shaped pile mold according to a first embodiment of the present invention;

fig. 4 is a cross-sectional view of another special-shaped pile mold according to the first embodiment of the present invention at the groove in a mold closing state;

fig. 5 is a cross-sectional view of another special-shaped pile mold in a mold closing state at a groove according to a first embodiment of the present invention;

fig. 6 is a cross-sectional view of another special-shaped pile mold in a mold closing state at a groove according to a first embodiment of the present invention;

fig. 7 is a schematic structural view of a special-shaped pile mold including an interrupted groove in a mold opening state according to a first embodiment of the present invention;

fig. 8 is a schematic structural view of a special-shaped pile mold according to a first embodiment of the present invention after an end plate is installed in the mold-opened state;

fig. 9 is a schematic structural view of a special-shaped pile mold according to a first embodiment of the present invention in a mold closing state;

fig. 10 is a schematic structural view of a special-shaped pile mold in a jacking state according to a first embodiment of the present invention;

fig. 11 is a schematic structural view of a special-shaped pile mold including a material distribution port according to a second embodiment of the present invention;

the list of labels in the figure is:

100. a special-shaped pile mould; 101. a polygonal mold cavity; 101a, a polygonal large-diameter section die cavity; 101b, a polygonal small-diameter section die cavity; 102. the bottom end of the mould; 103. a pumping port; 104. a viewing port; 105. a material distribution port;

1. a template; 11. a bottom template; 12, the inner side of the template; 13. a joining face;

2. thickening the bulge; 21. molding surface; 22. a transverse end portion; 23. a longitudinal end portion; 24. a transition surface;

3. a groove; 31. a first inclined plane; 32. a cambered surface; 33. a second inclined plane;

4. a longitudinal through groove;

5. an end plate; 51. a large diameter section; 52. a small diameter section;

6. a turnover plate; 7. a vibrator; 8. a jacking device;

200. special-shaped piles; 201. a polygonal large-diameter section; 202. a polygonal minor diameter section; 203. a convex rib 203; 204. A transition section.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

For convenience, the terms of interest in this embodiment are defined as follows:

herein, the length direction of the mold body is defined as a longitudinal direction, and a direction perpendicular to a horizontal plane is defined as an up-down direction, wherein a direction close to the ground is a down direction, and a direction far away from the ground is an up direction;

the definition is inner in the direction close to the center of the polygonal cavity and outer in the opposite direction, and the definition is preferably applied to the parts as well without further description.

Example one

Referring to fig. 1-2, the special-shaped pile mold 100 of the present invention refers to a mold for producing the special-shaped pile 200 shown in fig. 3, wherein the cross section of the special-shaped pile 200 is different in size along the length direction of the pile body. In this embodiment, the special-shaped pile mold 100 includes more than two mold plates 1 that can be circumferentially connected end to end in proper order to form the polygonal mold cavity 101, and at least two are adjacent the detachable connection or the hinge joint between the mold plates 1, and specific scheme is as shown in fig. 1, can be that the detachable connection or the hinge joint of the end to end joints of the three or four mold plates 1, compress tightly through the dead weight between two mold plates 1 that are not connected, or can also be detachably connected through the fastener, the drawing of patterns after the shaping of the variable cross section precast pile of being convenient for. In addition, template 1 is provided with several thickening arch 2 along longitudinal interval, and under the compound die state, at least two adjacent thickening arch 2 of circumference form recess 3 within a definite time, and recess 3 is linked together with polygon die cavity 101.

In this embodiment, polygon die cavity 101 includes vertical alternate polygon major diameter section die cavity 101a and polygon minor diameter section die cavity 101b, and polygon major diameter section die cavity 101a and polygon minor diameter section die cavity 101b all include 4 sides the utility model discloses in other embodiments, polygon minor diameter section die cavity 101b and polygon major diameter section die cavity 101 a's side quantity can be: 3, 5, 6, 7, 8, etc., and the number of sides of the polygonal large-diameter section cavity 101a may be different from the number of sides of the polygonal small-diameter section cavity 101 b.

As shown in fig. 3, by adopting the above structure, the obtained special-shaped pile 200 is sequentially and alternately distributed with the polygonal large-diameter sections 201 and the polygonal small-diameter sections 202 along the length direction of the pile body, and the convex ribs 203 are formed at the intersections of the lateral surfaces of the polygonal small-diameter sections 202, and when the convex ribs 203 are located at the intersections of the two lateral surfaces, the convex ribs 203 extrude soil towards the lateral direction, so as to destroy the continuity of the soil at the intersections of the polygonal small-diameter sections 202. Due to the design, the circumferential separation function of the convex ribs 203 on the soil around the pile can be fully exerted during pile sinking, so that the continuous holding acting force of the soil around the pile on the polygonal small-diameter section 202 is damaged, and therefore the special-shaped pile 200 prepared by the special-shaped pile mould 100 has the characteristic of small pile sinking resistance.

In a specific structure, as shown in fig. 4, the mold plate 1 at the bottom end 102 of the mold may be an integrally formed bottom mold plate 11, the thickening protrusions 2 on the bottom mold plate 11 have more than two molding surfaces 21 sequentially arranged along the circumferential direction, and the longitudinal through groove 4 communicated with the polygonal mold cavity 101 is formed at the intersection of two adjacent molding surfaces 21 of the thickening protrusions 2; preferably, the longitudinal through grooves 4 are of the same size as the grooves 3. The longitudinal through grooves 4 and the grooves 3 with the same specification enable the ribs 203 of the prepared special-shaped piles 200 to be kept consistent and located at the intersection of the two side faces, and the deformation resistance strength of the special-shaped piles 200 at the intersection is enhanced, so that the probability of pile explosion and pile cracking of the special-shaped piles 200 in the sinking process is reduced.

As shown in fig. 4, the recess 3 comprises at least one first inclined surface 31 formed by the lateral end 22 of the thickening protrusion 2, and the angle between the first inclined surface 31 and the adjacent forming surface 21 is phi, which is 91-179 degrees. When phi is 91-179 degrees, the first inclined surface 31 provides a drawing angle for the convex rib 203 made by the groove 3, and during the process that the special-shaped pile 200 is released from the cavity of the special-shaped pile mold 100, the convex rib 203 is separated from the cavity of the special-shaped pile mold 100 through the first inclined surface 31, so that the probability that the convex rib 203 is damaged during the releasing process is reduced.

As shown in fig. 4, one of the preferred configurations of the groove 3: the groove 3 comprises an arc surface 32 and two first inclined surfaces 31, the included angle between each first inclined surface 31 and the adjacent forming surface 21 is phi, the two first inclined surfaces 31 are in transition connection through the arc surface 32, and the arc surface 32 provides deformation resistance for the convex rib 203 manufactured by the groove 3 so as to prevent the convex rib 203 from being damaged in the demolding process.

In another structure of the groove 3, as shown in fig. 5, the groove 3 includes a second inclined surface 33 and two first inclined surfaces 31, an included angle between each first inclined surface 31 and its adjacent forming surface 21 is phi, and the two first inclined surfaces 31 are transitionally connected through the second inclined surface 33, so that damage to the rib 203 during demolding can be avoided.

Further, as shown in fig. 2-5, an engagement surface 13 is disposed at an edge of the polygonal large-diameter section cavity 101a, the engagement surface 13 is a chamfer or a circular arc, the engagement surface 13 is flush with the arc surface 32, or the engagement surface 13 is flush with the second inclined surface 33, by adopting the above structure, the rib 203 of the manufactured special-shaped pile 200 is flush with the edge of the polygonal large-diameter section 201, soil cannot be squeezed between the edge of the polygonal large-diameter section 201 and the adjacent rib 203 in the sinking process of the special-shaped pile, that is, the special-shaped pile 200 can continuously destroy the continuity of the soil in the polygonal large-diameter section 201 and the polygonal small-diameter section 202, and the special-shaped pile 200 can be quickly sunk into the ground under the action of the pile driver because the special-shaped pile 200 can continuously destroy the continuity of the soil in the polygonal large-diameter section 201 and the polygonal small-diameter section 202.

In this embodiment, the intersecting portion of two adjacent molding surfaces 21 is provided with the grooves 3, that is, the number of the molding surfaces 21 is the same as the number of the grooves 3. Since each of the polygonal large-diameter section cavity 101a and the polygonal small-diameter section cavity 101b includes 4 side surfaces, each of the four engagement surfaces 13 has the groove 3 corresponding thereto.

As shown in fig. 6, another preferred structure of the groove 3: the groove 3 comprises two first inclined surfaces 31, the included angle between each first inclined surface 31 and the adjacent forming surface 21 is phi, and the two first inclined surfaces 31 are directly connected.

As shown in fig. 2-3, the longitudinal end 23 of the thickening protrusion 2 is provided with a transition surface 24, and the transition surface 24 is connected and transited with the inner side 12 of the formwork where the transition surface is located; the transition surface 24 and the forming surface 21 form an included angle beta, and the beta is 90-179 degrees. Preferably, at least one longitudinal end of the groove 3 extends to the transition surface 24 adjacent to the groove, and the end of the rib 203 of the shaped profiled pile 200 extends to the transition section 204, so that when the profiled pile 200 sinks under the action of the pile driver, the sinking resistance of the profiled pile 200 at the transition section 204 can be effectively reduced.

As shown in fig. 2, a part of the number of grooves 3 is through-going in the longitudinal direction, and as shown in fig. 7, a part of the number of grooves 3 may also be interrupted in the longitudinal direction. In the utility model, the special-shaped pile mould 100 can set the groove 3 to be a through type and/or an interrupted type according to requirements so as to meet the pile sinking resistance received under different soil layer states; preferably, as shown in fig. 6, the width of the groove 3 is gradually reduced in a direction away from the center of the polygonal cavity 101; alternatively, as shown in fig. 1 and fig. 4 to 5, the width of the groove 3 is kept constant up to the groove bottom portion.

As shown in fig. 8, the profiled pile mould 100 comprises two end plates 5 located at the longitudinal ends of the polygonal mould cavity 101; the end plate 5 comprises a large-diameter section 51 and a small-diameter section 52 which are connected with each other, and the small-diameter section 52 is matched with the polygonal cavity 101; the edge part of the large-diameter section 51 is abutted against the longitudinal end part of the special-shaped pile mould 100, and by adopting the structure, the polygonal mould cavity 101 is more sealed in a mould closing state, so that concrete leakage can be effectively prevented, and the end face inclination of the special-shaped pile can be further effectively prevented.

Further, as shown in fig. 8, at least one end plate 5 and/or at least one formwork 1 is provided with a pumping port 103, after the concrete conveying equipment is connected to the special-shaped pile mold 100, concrete is directly input into the special-shaped pile mold 100 through the pumping port 103, and the concrete pollution can be effectively reduced by distributing materials in a pumping manner, so that the construction environment is improved.

As shown in fig. 9, the top end of the special-shaped pile mold 100, which is far away from the pumping port 103, is provided with a viewing port 104, and the viewing port 104 is provided with a turning plate 6 for blocking the viewing port 104; after pumping a certain amount of concrete, the roll-over plate 6 is opened, the pumping is stopped when the observation opening 104 starts to emit slurry, the shape of the concrete at the observation opening 104 is manually processed, and the roll-over plate 6 is closed and locked by a fastener (not shown in the figure). And/or, as shown in fig. 8, the bottom end of the profiled pile mould 100 is provided with a vibrator 7 for vibrating and compacting concrete.

As shown in fig. 10, the special-shaped pile mold 100 further includes a jacking device 8, and at least in the pumping operation state, the jacking device 8 is used for adjusting the height of one end of the mold so as to enable the mold to be obliquely arranged. The inclination angle is determined by factors such as concrete slump, when a pump pipe used for feeding materials deeply into the mould in the concrete conveying equipment moves from the higher end to the other end at a constant speed, the concrete can smoothly slump downwards at the angle, and the special-shaped pile mould 100 is prevented from being cracked due to accumulation of the concrete.

Example two

The same portions as those in the first embodiment are given the same reference numerals, and the same description is omitted.

As shown in fig. 11, the present embodiment provides another special-shaped pile mold 100, which has a longitudinally continuous material distribution opening 105 at least at the top end, and the material distribution opening 105 is communicated with the polygonal mold cavity 101. Similarly, a material distribution port 105 may be provided on both sides of the top end of the special-shaped pile mold 100, and the diameter of the material distribution port 105 may be related to the material distribution tool. The special-shaped pile mold 100 can adopt a material distribution vehicle or manual material distribution when distributing materials, and concrete materials are fed into the polygonal mold cavity 101 through the material distribution opening 105. In addition, the special-shaped pile mold 100 provided by the embodiment does not need to be provided with the observation port 104, the pumping port 103 and the turnover plate 6.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The special-shaped pile mould is characterized by comprising more than two templates which can be sequentially connected end to end in the circumferential direction to form a polygonal mould cavity; at least two adjacent templates are detachably connected or hinged;

the template is provided with a plurality of thickening protrusions at intervals along the longitudinal direction, under the die closing state, a groove is formed between at least two circumferentially adjacent thickening protrusions, and the groove is communicated with the polygonal die cavity.

2. The special-shaped pile mold according to claim 1, wherein the thickening protrusion has more than two molding surfaces arranged sequentially along the circumferential direction, and a longitudinal groove communicated with the polygonal mold cavity is formed at the intersection of two adjacent molding surfaces of the thickening protrusion.

3. The profiled pile die of claim 2 wherein the longitudinal groove is of the same gauge as the groove.

4. A profiled pile mould according to claim 2, characterised in that the recess comprises at least one first bevel formed by the transverse end of the thickening protrusion, the angle between the first bevel and its adjacent profiled surface being 91 ° -179 °.

5. The profiled pile die of claim 4, wherein the groove comprises an arc surface and two first inclined surfaces, and the two first inclined surfaces are transitionally connected through the arc surface;

or the groove comprises a second inclined surface and two first inclined surfaces, and the two first inclined surfaces are in transitional connection through the second inclined surface.

6. The profiled pile mould of claim 2, wherein the longitudinal end of the thickening protrusion is provided with a transition surface, and the transition surface is connected and transited with the inner side of the template where the transition surface is located;

the transition surface and the forming surface form an included angle of 90-179 degrees.

7. The profiled pile mould of claim 1 wherein the groove is through and/or intermittent in the longitudinal direction.

8. The profiled pile die of claim 7 wherein the groove has a width that gradually decreases or remains constant in a direction away from the center of the polygonal die cavity to a bottom portion of the groove.

9. The profiled pile die of claim 1, wherein the profiled pile die comprises two end plates located at the longitudinal ends of the polygonal die cavity;

the end plate comprises a large-diameter section and a small-diameter section which are connected with each other, and the small-diameter section is matched with the polygonal die cavity; and at least one end plate and/or at least one template is provided with a pumping port.

10. The special-shaped pile mould according to claim 9, wherein the special-shaped pile mould is provided with a viewing port at the top end far away from the pumping port, and the viewing port is provided with a turnover plate for plugging the viewing port;

and/or a vibrator is arranged at the bottom end of the special-shaped pile mould and used for vibrating and compacting concrete.

11. The profiled pile mould of any one of claims 1 to 10 further comprising a jacking means, and at least in the pumping mode, the jacking means is adapted to adjust the height of one end of the mould to enable it to be tilted.

12. The special-shaped pile mold according to claim 1, wherein at least the top end of the special-shaped pile mold is provided with a longitudinally continuous material distribution port, and the material distribution port is communicated with the polygonal mold cavity.