CN111926802B - High-strength concrete pile and pouring process thereof - Google Patents
High-strength concrete pile and pouring process thereof Download PDFInfo
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- CN111926802B CN111926802B CN202010631118.XA CN202010631118A CN111926802B CN 111926802 B CN111926802 B CN 111926802B CN 202010631118 A CN202010631118 A CN 202010631118A CN 111926802 B CN111926802 B CN 111926802B
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000011372 high-strength concrete Substances 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 110
- 239000010959 steel Substances 0.000 claims abstract description 110
- 230000002787 reinforcement Effects 0.000 claims abstract description 90
- 239000004567 concrete Substances 0.000 claims abstract description 86
- 238000002347 injection Methods 0.000 claims abstract description 61
- 239000007924 injection Substances 0.000 claims abstract description 61
- 239000011796 hollow space material Substances 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims description 34
- 238000009826 distribution Methods 0.000 claims description 29
- 239000011248 coating agent Substances 0.000 claims description 24
- 238000000576 coating method Methods 0.000 claims description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 23
- 239000000853 adhesive Substances 0.000 claims description 18
- 230000001070 adhesive effect Effects 0.000 claims description 18
- 238000009792 diffusion process Methods 0.000 claims description 13
- 239000011230 binding agent Substances 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 8
- 239000003365 glass fiber Substances 0.000 claims description 8
- 210000003205 muscle Anatomy 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 2
- 239000003973 paint Substances 0.000 claims 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 230000002349 favourable effect Effects 0.000 description 5
- 239000007767 bonding agent Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910021487 silica fume Inorganic materials 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/36—Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a high-strength concrete pile and a pouring process thereof, belonging to the technical field of concrete pile preparation, wherein a pile hole attaching cage and an inner reinforcement body are arranged on the inner side and the outer side of a reinforcement cage, the pile hole attaching cage formed by an annular steel cage and a conical embedded steel plate is embedded in the pile hole, a first concrete layer is filled in a first pouring cavity formed by the annular steel cage and the conical embedded steel plate to form a firm peripheral reinforcement layer on the outer side of the reinforcement cage, the reinforcement cage is inserted into the pile hole attaching cage, a second concrete layer is filled between the reinforcement cage and the pile hole attaching cage to realize mechanical bonding of the reinforcement cage and the pile hole attaching cage, the inner reinforcement body is placed in the reinforcement cage, the inner reinforcement body comprises a hollow material injection steel pipe positioned in the middle part and a plurality of fan-shaped reinforcement pieces distributed on the outer side of the hollow material injection steel pipe, a third concrete layer is filled between every two fan-shaped reinforcement pieces, and a pouring process of filling is utilized for layer-by layer embedding from outside to inside, on one hand, the concrete pile is not easy to scatter, and on the other hand, the bearing capacity and the uplift resistance of the solid square pile are effectively improved.
Description
Technical Field
The invention relates to the technical field of concrete pile preparation, in particular to a high-strength concrete pile and a pouring process thereof.
Background
In modern building industry, foundations and piles are one of the most important parts of buildings, and concrete piles are piles made of concrete (including common reinforced concrete and prestressed concrete), have the advantages of wood and steel saving, durability, low manufacturing cost and the like, are widely used in foundation engineering of hydraulic buildings, industrial buildings, civil buildings and bridges, and are also commonly used for skid resistance or water insulation of side slopes and foundation pit support.
The cross section of the pile is square, rectangular, circular and the like, the square cross section pile and the circular cross section pile are the most commonly used, when a foundation is built and a concrete pile is built in a building, a pile hole is generally drilled, then a prefabricated reinforcement cage is placed in the pile hole, concrete is poured, and the concrete pile is formed after the prefabricated reinforcement cage is solidified.
In current concrete pile preparation process, stake hole and steel reinforcement cage adaptation, when the ground foundation soil property is comparatively soft, form the sediment in the stake hole easily, the steel reinforcement cage is difficult for stake hole high strength machinery to bond, often can lead to solid square pile intensity low like this, and bearing capacity and withdrawal resistance are not high.
Therefore, we propose a high-strength concrete pile and a pouring process thereof to effectively solve some of the problems described in the prior art.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a high-strength concrete pile and a pouring process thereof, a pile hole attaching cage and an inner reinforcement body are arranged on the inner side and the outer side of a reinforcement cage, the pile hole attaching cage formed by an annular steel cage and a conical embedded steel plate is embedded in the pile hole, a first concrete layer is filled in a first pouring cavity formed by the annular steel cage and the conical embedded steel plate, a firm peripheral reinforcement layer is formed on the outer side of the reinforcement cage, the reinforcement cage is inserted into the pile hole attaching cage, a second concrete layer is filled between the reinforcement cage and the pile hole attaching cage, the mechanical bonding of the reinforcement cage and the pile hole attaching cage is realized, the inner reinforcement body is placed in the reinforcement cage, the inner reinforcement body comprises a hollow injection steel pipe positioned in the middle part and a plurality of fan-shaped reinforcement pieces distributed on the outer side of the hollow injection steel pipe, a third concrete layer is filled between every two fan-shaped reinforcement pieces, and the pouring process of filling is built layer by layer from outside to inside, on one hand, the concrete pile is not easy to scatter, and on the other hand, the bearing capacity and the uplift resistance of the solid square pile are effectively improved.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A high-strength concrete pile comprises a reinforcement cage inserted into a pile hole, wherein the reinforcement cage comprises a plurality of outer straight reinforcements and inner hoops which are embedded and connected inside and outside, the outer straight reinforcements are annularly distributed on the outer sides of the inner hoops, a pile hole attaching cage is sleeved on the outer sides of the outer straight reinforcements, the pile hole attaching cage comprises an annular steel cage which is attached to the outer sides of the outer straight reinforcements, a plurality of conical embedded steel plates which are embedded in the pile hole are annularly distributed on the outer side of the annular steel cage, a first pouring cavity is formed by the annular steel cage and the inner wall of the pile hole, a first concrete layer is filled in the first pouring cavity, a second pouring cavity is formed between the annular steel cage and the outer straight reinforcements, a second concrete layer is filled in the second pouring cavity, an inner reinforcement body which is attached to the inner wall of the reinforcement cage is arranged in the reinforcement cage, and comprises a hollow material injection steel pipe which is positioned in the middle part, the outer side wall of the hollow material injection steel pipe is annularly provided with a plurality of fan-shaped reinforcing pieces, the inner ends of the fan-shaped reinforcing pieces are communicated with the inside of the hollow material injection steel pipe, coating distribution grid surfaces communicated with the inside of the fan-shaped reinforcing pieces are attached to the side walls of the two sides of the fan-shaped reinforcing pieces, a third pouring cavity is formed between every two adjacent fan-shaped reinforcing pieces, and a third concrete layer is filled in the third pouring cavity.
Further, all paste on the interior outer end lateral wall of annular steel cage and have alkali-resisting glass fiber reinforcing net cloth, it is a plurality of sawtooth line has been seted up on the lateral wall of toper embedding steel sheet, and is a plurality of toper embedding steel sheet inlays and locates in the first concrete layer, and the net cloth of attached alkali-resisting glass fiber reinforcing has strengthened the mechanical strength of the attached cage in stake hole on the one hand, and on the other hand more is favorable to improving the adhesion between first concrete layer and the stake hole.
Furthermore, a plurality of outer ends of the fan-shaped reinforcing pieces are matched and attached to the inner ends of the outer straight ribs which are vertically arranged, and material injection diffusion cavities communicated with the coating distribution grid surface are formed in two sides of the inner ends of the fan-shaped reinforcing pieces.
Furthermore, a concrete adhesive is filled in the hollow injection steel pipe, the concrete adhesive is prepared by matching a cement adhesive and silica powder, the concrete adhesive is filled in the hollow injection steel pipe, and the concrete adhesive is diffused to the coating distribution grid surface by the injection diffusion cavity, so that the bonding strength between the third concrete layer and the inner reinforcement body is improved, and the silica powder is also beneficial to filling the pores among the concrete particles.
A pouring process of a high-strength concrete pile comprises the following steps:
s1, utilizing drilling equipment to cut pile holes at a site to be constructed for later use, setting the size according to the site construction requirement, cleaning sundries in the pile holes, inserting pile hole attaching cages into the pile holes, and attaching a plurality of conical embedded steel plates outside the pile hole attaching cages to the inner walls of the pile holes;
s2, sleeving a reinforcement cage on the inner side of the pile hole attaching cage, attaching a plurality of inner stirrups outside the pile hole attaching cage to the inner end of the annular steel cage, and pouring concrete in the first pouring cavity and the second pouring cavity respectively;
s3, embedding the inner reinforcement body in the reinforcement cage, adhering a plurality of coating distribution grid surfaces on the outer side of the inner reinforcement body to the inner end of the outer straight reinforcement, introducing a proper amount of concrete binder into the hollow material injection steel pipe, sequentially leading out the concrete binder introduced into the hollow material injection steel pipe by using an external pressure injection device, diffusing the concrete binder on the coating distribution grid surfaces under the action of pressure, and then pouring concrete into the third pouring cavity and the hollow material injection steel pipe to finish the pouring of the concrete pile.
Further, external pressure is annotated the device and is included placing in the bearing platform of treating construction site department, install supplementary notes material support frame through the rotating electrical machines rotation on the bearing platform, one side that is close to the stake hole inlays to establish and installs electronic slide rail, install the diaphragm on the electronic slide rail, the guide post that the bottom fixedly connected with cavity notes material steel pipe position of diaphragm corresponds, the bottom fixedly connected with fixed chassis of guide post, slidable mounting has the slip pressure that is located fixed chassis top on the lateral wall of guide post and annotates the dish, and the guide post that utilizes the liftable is located the cavity and is annotated in the material steel pipe with fixed chassis cover, and fixed chassis's setting plays the regulating action to annotating the material position, and slip pressure notes dish on the guide post is located to the slip pressure, then under the in-process of pushing down with the concrete binder to coating distribution net face department diffusion.
Furthermore, the top end of the transverse plate is fixedly connected with an electric push rod, and the telescopic end of the electric push rod penetrates through the transverse plate and is fixedly connected to the top end of the sliding pressure injection plate.
Further, the using method of the external pressure injection device in the step S3 is as follows: utilize electronic slide rail to stretch into in the cavity notes material steel pipe with the guide post that has fixed chassis, when using for the first time, the bottom that material steel pipe was annotated to fixed chassis and cavity contacts, the top position that slip pressure notes the dish and is in the guide post, to leading-in appropriate amount concrete binder in the cavity notes material steel pipe, utilize electric putter to make the slip pressure notes dish push down, slip pressure notes the dish push down the back with the cavity annotate the concrete agent in the material steel pipe cavity and spread on coating distribution net face through a plurality of notes material diffusion chambeies, the vertical position on fixed chassis can upwards be adjusted, in order to realize that the concrete material of pressing downwards notes can fully spread on the whole vertical terminal surface of coating distribution net face.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the scheme is that the pile hole attaching cage and the inner reinforcement body are arranged on the inner side and the outer side of the steel reinforcement cage, the annular steel cage and the pile hole attaching cage formed by the conical embedded steel plate are embedded in the pile hole, fill first concrete layer in the first intracavity of pouring that both formed, realize forming a firm peripheral enhancement layer in the steel reinforcement cage outside, insert the steel reinforcement cage again in the attached cage in stake hole, fill second concrete layer between steel reinforcement cage and the attached cage in stake hole, realize both mechanical bonding, place interior reinforcement body again to the steel reinforcement cage in, interior reinforcement body is including the cavity that is located the middle part annotates the material steel pipe and distribute in the cavity and annotate a plurality of fan-shaped reinforcement pieces in the material steel pipe outside, a plurality of fan-shaped reinforcement pieces are two liang between and are filled third concrete layer, utilize outside-in to inlay layer upon layer and establish the pouring technology of packing, the concrete pile is difficult for scattering on the one hand, on the other hand effectively improves the bearing capacity and the withdrawal resistance of solid square pile.
(2) All paste on the interior outer end lateral wall of annular steel cage with alkali-resisting glass fiber reinforcement net cloth, seted up the sawtooth line on the lateral wall of a plurality of toper embedding steel sheets, and a plurality of toper embedding steel sheets inlay and locate in the first concrete layer, attached alkali-resisting glass fiber reinforcement net cloth has strengthened the mechanical strength of the attached cage in stake hole on the one hand, and on the other hand more is favorable to improving the adhesion between first concrete layer and the stake hole.
(3) The outer end of a plurality of fan-shaped gusset plates is matched and is fitted in the outer straight muscle inner of a plurality of vertical settings, the material diffusion chamber of annotating that is linked together with coating distribution net face is all seted up to the inner both sides of fan-shaped gusset plate, the inside packing of material steel pipe is annotated to the cavity has the concrete bonding agent, the concrete bonding agent is prepared by cement binder and silica fume cooperation, annotate the inside concrete bonding agent that fills of material steel pipe to the cavity, the concrete bonding agent is again by annotating material diffusion chamber diffusion in coating distribution net face department, be favorable to improving the cohesive force degree between third concrete layer and the interior reinforcement body, and silica fume still is favorable to filling the hole between the concrete granule.
(4) External pressure is annotated device is including placing in the bearing platform of treating construction site department, install supplementary notes material support frame through the rotating electrical machines rotation on the bearing platform, one side that is close to the stake hole inlays to be established and installs electronic slide rail, install the diaphragm on the electronic slide rail, the guide post that the material steel pipe position corresponds is annotated to the bottom fixedly connected with cavity of diaphragm, the bottom fixedly connected with fixed chassis of guide post, slidable mounting has the slip pressure that is located fixed chassis top to annotate the dish on the lateral wall of guide post, the guide post that utilizes the liftable is located the cavity with fixed chassis cover and is annotated in the material steel pipe, the setting of fixed chassis plays the regulating action to annotating the material position, and slip pressure on the guide post is annotated the dish to the slip of slip cover, then under the in-process of pushing down with the concrete binder to coating distribution net face department diffusion.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of the pile hole and pile hole attachment cage junction of the present invention;
FIG. 3 is a first top view of the reinforcement cage, pile hole attachment cage and internal reinforcement junction of the present invention;
FIG. 4 is a perspective view of the reinforcement cage and inner reinforcement combination of the present invention;
FIG. 5 is a perspective view of the internal reinforcement of the present invention;
fig. 6 is a second top view of the joint of the reinforcement cage, the pile hole attachment cage, and the internal reinforcement body of the present invention.
The reference numbers in the figures illustrate:
the concrete pile comprises a steel reinforcement cage 1, a straight reinforcement outside 101, a stirrup inside 102, a pile hole attaching cage 2, an annular steel cage 201, a conical embedded steel plate 202, an alkali-resistant glass fiber reinforced mesh cloth 203, an inner reinforcement body 3, a hollow injection steel pipe 301, a fan-shaped reinforcing sheet 302, a coating distribution mesh surface 303, an auxiliary injection support frame 4, an electric slide rail 5, a transverse plate 6, a guide column 7, a fixed chassis 8, a sliding injection plate 9, an electric push rod 10 and a rotating motor 11.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
please refer to fig. 1-3 and fig. 6, a high strength concrete pile, including inserting steel reinforcement cage 1 of locating in the pile hole, steel reinforcement cage 1 includes that a plurality of inside and outside inlays and establishes outer straight muscle 101 and interior stirrup 102 of connecting, a plurality of outer straight muscle 101 annular distribution are in the outside of a plurality of interior stirrups 102, the outside cover of a plurality of outer straight muscle 101 is equipped with the attached cage 2 in pile hole, the attached cage 2 in pile hole is including the annular steel cage 201 that pastes in a plurality of outer straight muscle 101 outsides, the outside annular distribution of annular steel cage 201 has a plurality of cones of inlays and locates the downthehole steel sheet 202 of pile, annular steel cage 201 forms first chamber of pouring with the pile hole inner wall, the first intracavity of pouring is filled with first concrete layer.
All paste on the interior outer end lateral wall of annular steel cage 201 and have had alkali-resisting glass fiber reinforcement net cloth 203, seted up the sawtooth line on the lateral wall of a plurality of toper embedding steel sheet 202, and a plurality of toper embedding steel sheet 202 inlays and locates in the first concrete layer, and attached alkali-resisting glass fiber reinforcement net cloth 203 has strengthened the mechanical strength of the attached cage 2 in stake hole on the one hand, and on the other hand more is favorable to improving the adhesion between first concrete layer and the stake hole.
Form the second between annular steel cage 201 and the outer straight muscle 101 and pour the chamber, the second is pour the intracavity and is filled there is second concrete layer, the interior reinforcement 3 of laminating rather than the inner wall is placed to the inside of steel cage 1, interior reinforcement 3 is including the cavity that is located the middle part annotates material steel pipe 301, the annular distribution has a plurality of fan-shaped reinforcement pieces 302 on the lateral wall of material steel pipe 301 is annotated to the cavity, form the third between two liang of adjacent fan-shaped reinforcement pieces 302 and pour the chamber, the intracavity is filled to the third is pour to the third has third concrete layer.
Referring to fig. 3-5, the inner ends of the plurality of fan-shaped reinforcing pieces 302 are all communicated with the interior of the hollow injection steel pipe 301, and the coating distribution grid surface 303 communicated with the inside of the fan-shaped reinforcing plates 302 is attached to the side walls of the two sides of the fan-shaped reinforcing plates 302, the outer ends of the fan-shaped reinforcing plates 302 are matched and attached to the inner ends of the outer straight ribs 101 arranged vertically, material injection diffusion cavities communicated with the coating distribution grid surface 303 are formed in the two sides of the inner ends of the fan-shaped reinforcing plates 302, a concrete adhesive is filled in the hollow material injection steel pipe 301 and is prepared by matching a cement adhesive and silica powder, the concrete adhesive is filled in the hollow material injection steel pipe 301, and then the concrete adhesive is diffused at the coating distribution grid surface 303 through the material injection diffusion cavities, so that the bonding strength between a third concrete layer and the inner reinforcing body 3 is improved, and the silica powder is also beneficial to filling of pores among concrete particles.
A pouring process of a high-strength concrete pile comprises the following steps:
s1, digging pile holes at a site to be constructed for later use by using drilling equipment, setting the size according to the site construction requirement, cleaning sundries in the pile holes, inserting the pile hole attaching cage 2 into the pile holes, and attaching a plurality of conical embedded steel plates 202 on the outer side of the pile hole attaching cage 2 to the inner wall of the pile holes;
s2, sleeving the reinforcement cage 1 on the inner side of the pile hole attaching cage 2, attaching a plurality of inner stirrups 102 on the outer side of the pile hole attaching cage 2 to the inner end of the annular steel cage 201, and at the moment, respectively pouring concrete in the first pouring cavity and the second pouring cavity;
s3, embedding the inner reinforcement body 3 in the reinforcement cage 1, enabling a plurality of coating distribution grid surfaces 303 on the outer side of the inner reinforcement body 3 to be attached to the inner ends of the outer straight ribs 101, introducing a proper amount of concrete adhesive into the hollow material injection steel pipe 301, sequentially leading out the concrete adhesive introduced into the hollow material injection steel pipe 301 by using an external pressure injection device, diffusing the concrete adhesive on the coating distribution grid surfaces 303 under the action of pressure, and pouring concrete into the third pouring cavity and the hollow material injection steel pipe 301 to finish pouring of the concrete pile.
Referring to fig. 1, specifically, the external injection device includes a bearing platform placed at a site to be executed, an auxiliary injection support frame 4 is rotatably installed on the bearing platform through a rotating motor 11, an electric slide rail 5 is embedded and installed at one side close to a pile hole, a transverse plate 6 is installed on the electric slide rail 5, a guide post 7 corresponding to a hollow injection steel pipe 301 is fixedly connected to the bottom end of the transverse plate 6, a fixed chassis 8 is fixedly connected to the bottom end of the guide post 7, a sliding injection tray 9 located above the fixed chassis 8 is slidably installed on the side wall of the guide post 7, an electric push rod 10 is fixedly connected to the top end of the transverse plate 6, the telescopic end of the electric push rod 10 penetrates through the transverse plate 6 and is fixedly connected to the top end of the sliding injection tray 9, the fixed chassis 8 is sleeved in the hollow injection steel pipe 301 by using the liftable guide post 7, the setting of the fixed chassis 8 plays a role in adjusting the injection position, the sliding pressure injection plate 9 slidably sleeved on the guide post 7 diffuses the concrete binder to the coating distribution grid surface 303 in the process of pressing down.
The using method of the external pressure injection device in S3 comprises the following steps: utilize electronic slide rail 5 to stretch into the cavity with guide post 7 of fixed chassis 8 and annotate in the material steel pipe 301, when using for the first time, fixed chassis 8 contacts with the bottom of cavity notes material steel pipe 301, slip pressure notes dish 9 is in the top position of guide post 7, to leading-in appropriate amount concrete binder in the cavity notes material steel pipe 301, utilize electric putter 10 to make slip pressure notes dish 9 push down, slip pressure notes dish 9 pushes down the back with the cavity annotate the concrete agent in the material steel pipe 301 cavity and spread on coating distribution net face 303 through a plurality of notes material diffusion chambeies, the vertical position of fixed chassis 8 can upwards adjust in proper order, in order to realize that the concrete material of pressing down notes can fully spread on the whole vertical terminal surface of coating distribution net face 303.
The components used in the present invention are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experiments.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (1)
1. The utility model provides a high strength concrete pile, is including inserting steel reinforcement cage (1) of locating the stake downthehole, steel reinforcement cage (1) includes that a plurality of inside and outside inlays outer straight muscle (101) and interior stirrup (102) of establishing the connection, its characterized in that: the outer straight ribs (101) are annularly distributed on the outer sides of the inner stirrups (102), a pile hole attaching cage (2) is sleeved on the outer sides of the outer straight ribs (101), the pile hole attaching cage (2) comprises annular steel cages (201) attached to the outer sides of the outer straight ribs (101), a plurality of conical embedded steel plates (202) embedded in the pile holes are annularly distributed on the outer sides of the annular steel cages (201), the annular steel cages (201) and the inner walls of the pile holes form a first pouring cavity, a first concrete layer is filled in the first pouring cavity, a second pouring cavity is formed between the annular steel cages (201) and the outer straight ribs (101), and a second concrete layer is filled in the second pouring cavity;
an inner reinforcement body (3) which is attached to the inner wall of the reinforcement cage (1) is placed in the reinforcement cage, the inner reinforcement body (3) comprises a hollow material injection steel pipe (301) which is located in the middle, a plurality of fan-shaped reinforcing pieces (302) are annularly distributed on the outer side wall of the hollow material injection steel pipe (301), the inner ends of the fan-shaped reinforcing pieces (302) are communicated with the inside of the hollow material injection steel pipe (301), coating distribution grid surfaces (303) communicated with the inside of the fan-shaped reinforcing pieces (302) are attached to the side walls of the two sides of the fan-shaped reinforcing pieces (302), a third pouring cavity is formed between every two adjacent fan-shaped reinforcing pieces (302), and a third concrete layer is filled in the third pouring cavity;
alkali-resistant glass fiber reinforced mesh cloth (203) is attached to the side walls of the inner end and the outer end of the annular steel cage (201), sawtooth lines are formed in the outer side walls of the conical embedded steel plates (202), and the conical embedded steel plates (202) are embedded in the first concrete layer;
the outer ends of the fan-shaped reinforcing pieces (302) are matched and attached to the inner ends of the outer straight ribs (101) which are vertically arranged, and material injection diffusion cavities communicated with the coating distribution grid surface (303) are formed in the two sides of the inner ends of the fan-shaped reinforcing pieces (302);
the interior of the hollow material injection steel pipe (301) is filled with a concrete adhesive, and the concrete adhesive is prepared by matching a cement adhesive and silicon micropowder;
the pouring process of the high-strength concrete pile comprises the following steps:
s1, digging pile holes at a site to be constructed for later use by using drilling equipment, setting the size according to the site construction requirement, cleaning sundries in the pile holes, inserting the pile hole attaching cage (2) into the pile holes, and attaching a plurality of conical embedded steel plates (202) on the outer side of the pile hole attaching cage (2) to the inner wall of the pile holes;
s2, sleeving the reinforcement cage (1) on the inner side of the pile hole attaching cage (2), attaching a plurality of inner stirrups (102) on the outer side of the reinforcement cage (1) to the inner end of the annular steel cage (201), and pouring concrete in the first pouring cavity and the second pouring cavity respectively;
s3, embedding the inner reinforcement body (3) in the reinforcement cage (1), leading a plurality of coating distribution grid surfaces (303) on the outer side of the inner reinforcement body (3) to be attached to the inner end of the outer straight rib (101), leading a proper amount of concrete adhesive into the hollow material injection steel pipe (301), leading the concrete adhesive led into the hollow material injection steel pipe (301) outwards in sequence by utilizing an external pressure injection device, diffusing the concrete adhesive on the coating distribution grid surfaces (303) under the action of pressure, and pouring concrete into the third pouring cavity and the hollow material injection steel pipe (301) to finish the pouring of the concrete pile;
the external pressure injection device comprises a bearing table placed at a to-be-constructed place, an auxiliary injection support frame (4) is rotatably installed on the bearing table through a rotating motor (11), an electric slide rail (5) is embedded and installed on one side, close to a pile hole, of the auxiliary injection support frame (4), a transverse plate (6) is installed on the electric slide rail (5), the bottom end of the transverse plate (6) is fixedly connected with a guide column (7) corresponding to the position of a hollow injection steel pipe (301), the bottom end of the guide column (7) is fixedly connected with a fixed chassis (8), and a sliding pressure injection disc (9) located above the fixed chassis (8) is slidably installed on the side wall of the guide column (7);
the top end of the transverse plate (6) is fixedly connected with an electric push rod (10), and the telescopic end of the electric push rod (10) penetrates through the transverse plate (6) and is fixedly connected to the top end of the sliding pressure injection plate (9);
the using method of the external pressure injection device in the step S3 comprises the following steps: the guide post (7) with the fixed chassis (8) extends into the hollow material injection steel pipe (301) by utilizing the electric sliding rail (5), when the guide post is used for the first time, the fixed chassis (8) is in contact with the bottom of the hollow material injection steel pipe (301), the sliding pressure injection disc (9) is positioned at the top end position of the guide post (7), a proper amount of concrete binder is introduced into the hollow material injection steel pipe (301), the sliding pressure injection disc (9) is pressed downwards by utilizing the electric push rod (10), after being pressed downwards, the concrete agent in the cavity of the hollow material injection steel pipe (301) is diffused on the paint distribution grid surface (303) through the plurality of material injection diffusion cavities, the vertical position of the fixed chassis (8) can be adjusted upwards, so that the concrete material pressed downwards can be fully diffused on the whole vertical end surface of the paint distribution grid surface (303).
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| CN115217096A (en) * | 2022-07-03 | 2022-10-21 | 中建八局第二建设有限公司 | Miniature uplift pile cage framework device for slightly weathered rock geology and miniature uplift pile construction method |
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| JP5406628B2 (en) * | 2009-08-18 | 2014-02-05 | 株式会社竹中工務店 | Cast-in-place pile installation method |
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| JP5406628B2 (en) * | 2009-08-18 | 2014-02-05 | 株式会社竹中工務店 | Cast-in-place pile installation method |
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