CN113389196A - Protection device is used in bridge pile foundation construction - Google Patents
Protection device is used in bridge pile foundation construction Download PDFInfo
- Publication number
- CN113389196A CN113389196A CN202110776160.5A CN202110776160A CN113389196A CN 113389196 A CN113389196 A CN 113389196A CN 202110776160 A CN202110776160 A CN 202110776160A CN 113389196 A CN113389196 A CN 113389196A
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- plate
- main body
- groove
- grouting
- pile foundation
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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
- E02D5/66—Mould-pipes or other moulds
- E02D5/68—Mould-pipes or other moulds for making bulkheads or elements thereof
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
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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
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Foundations (AREA)
Abstract
The invention relates to the field of bridge construction protection. The protective device for bridge pile foundation construction comprises a pile casing main body and a ring buckle assembly; the protective cylinder main body consists of an upper section and a lower section, a circle of annular top guard plate is arranged on the outer edge of the upper end of the upper section of the protective cylinder main body, and a circle of annular bottom guard plate is arranged on the outer edge of the lower end of the lower section of the protective cylinder main body; a plurality of rectangular vertical plates which are annularly distributed around the center of the pile casing main body are arranged between the upper section and the lower section of the pile casing main body; the projection of the vertical plate in the vertical direction extends along the radial direction of the protective cylinder main body, the edge of the inner side of the vertical plate is welded with the outer surface of the protective cylinder main body, and the top edge and the bottom edge of the vertical plate are respectively welded with the bottom surface of the top protective plate and the top surface of the bottom protective plate. The invention can greatly improve the installation stability of the casing main body, avoid the dislocation and deformation of the casing main body and provide good protection for subsequent drilling.
Description
Technical Field
The invention relates to the field of bridge protection, in particular to a protection device for bridge pile foundation construction.
Background
The pile grouting is the main construction form of the bridge pile foundation at present, and sequentially comprises the steps of drilling, embedding a pile casing, preparing slurry, drilling, cleaning holes, pouring concrete and the like, wherein the pile casing is an extremely important protection device in the pile grouting process, and plays a plurality of roles of protecting an orifice, preventing the collapse of a hole wall, ensuring the verticality of a drilling tool and the like, and if the stability of the pile casing is insufficient, the protection performance of the pile casing can be greatly influenced, and further the drilling quality is influenced. As shown in fig. 1, the conventional casing is usually very simple in structure, and is generally a cylinder, a ring-shaped protective edge is arranged on the outer surface of the top end of the cylinder, after an orifice is drilled, the casing is placed into the orifice, the protective edge is abutted against the ground at the edge of the orifice, and then the casing is simply fixed or supported. However, due to poor stability, the problems of deflection, deformation and the like of the pile casing often occur.
Disclosure of Invention
The invention aims to provide a protective device for bridge pile foundation construction with excellent stability.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: a protective device for bridge pile foundation construction comprises a pile casing main body and a ring buckle assembly;
the protective cylinder main body consists of an upper section and a lower section, a circle of annular top guard plate is arranged on the outer edge of the upper end of the upper section of the protective cylinder main body, and a circle of annular bottom guard plate is arranged on the outer edge of the lower end of the lower section of the protective cylinder main body; a plurality of rectangular vertical plates which are annularly distributed around the center of the pile casing main body are arranged between the upper section and the lower section of the pile casing main body; the projection of the vertical plate in the vertical direction extends along the radial direction of the pile casing main body, the edge of the inner side of the vertical plate is welded with the outer surface of the pile casing main body, and the top edge and the bottom edge of the vertical plate are respectively welded with the bottom surface of the top protection plate and the top surface of the bottom protection plate; an installation groove for inserting the buckle component is formed between the upper section and the lower section of the casing main body;
the buckle component comprises a ring plate matched with the mounting groove and a plurality of transverse plates arranged on the outer surface of the ring plate and extending along the radial direction of the ring plate; a short auxiliary plate parallel to the transverse plate is arranged on one side of the transverse plate, a clamping groove is formed between the short auxiliary plate and the transverse plate, and the clamping groove is matched with and clamped on the vertical plate; the ring plate is formed by encircling a plurality of sections of arc-shaped plate bodies, the adjacent two sections of plate bodies are connected through bolts, and each section of plate body is at least provided with a group of transverse plates and short auxiliary plates;
the top guard plate is also provided with a grouting opening for grouting in the area between the top guard plate and the bottom guard plate and an exhaust opening for exhausting air in the area between the top guard plate and the bottom guard plate.
Preferably, the ring plate is formed by four plate bodies.
Preferably, one end of the transverse plate, which is far away from the plate body, is bent to form an elastic hook part, and the elastic hook part is used for being inserted into soil on the peripheral side to form a peripheral support.
Preferably, the connecting ends of the plate bodies are provided with connecting sections, the connecting sections of two adjacent plate bodies are respectively positioned on the inner side and the outer side, and the two connecting sections are locked through bolts.
Preferably, a circle of concave and annular groove is formed in the middle of the top protection plate around the center of the protection cylinder main body, the cross section of the groove is in a semicircular shape with an upward opening, and a plurality of grouting ports are formed in the bottom of the groove along the length direction of the groove.
Preferably, the grouting device also comprises a grouting groove matched with the groove, wherein the grouting groove is also annular, and the cross section of the grouting groove is semicircular; the grouting groove is reversely buckled on the groove and is connected with the top guard plate through a bolt; and a pressurized grouting channel is enclosed between the grouting groove and the groove, and a grout inlet is formed in the grouting groove.
Preferably, a sealing gasket is arranged between the grouting groove and the groove.
Preferably, the exhaust port is located on the outer side of the top sheathing panel with respect to the groove.
Preferably, the outer edge of the top guard plate is provided with a circle of inclined parts which extend outwards and upwards in an inclined mode, and the inclined parts are anchored with soil through anchor rods.
The beneficial effects of the invention are concentrated and expressed as follows: the stability of a promotion section of thick bamboo main part installation that can be very big avoids protecting a main part dislocation, deformation, provides good protection for subsequent drilling. Specifically, in the use process of the invention, an orifice is drilled firstly, then the casing main body is installed in the orifice, and then the buckle assembly is installed; clamping slots formed by transverse plates and short auxiliary plates on a plurality of plate bodies of the buckle component on the vertical plates, and enabling the end parts of the transverse plates to extend into the soil body; and then, injecting bonding mortar into the area between the top protection plate and the bottom protection plate through the grouting opening, and after the bonding mortar is filled, carrying out subsequent drilling after the mortar is dried. The protective cylinder main body, the ring buckle assembly, the bonding mortar and the soil body can form multi-angle multi-level three-dimensional bonding and fastening. The invention has numerous bonding nodes and supporting limit nodes, and the stress of each node can be uniformly dispersed to the surrounding soil body through the casing main body and the ring buckle assembly. Therefore, the invention can effectively prevent the casing main body from displacement and deformation, so that the casing main body is kept stable, deflection is prevented, and the stability of subsequent drilling is ensured.
Drawings
FIG. 1 is a schematic structural diagram of a conventional casing;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a top view of the present invention without the grouting groove (0) installed;
FIG. 5 is a schematic structural view of the casing body;
FIG. 6 is a schematic view of the buckle assembly;
FIG. 7 is a schematic view of the buckle assembly prior to assembly.
Detailed Description
As shown in fig. 1 to 7, the protection device for bridge pile foundation construction comprises a casing main body 1 and a ring fastener assembly. The protective cylinder main body 1 is used for protecting an orifice, the protective cylinder main body 1 is composed of an upper section and a lower section, the length between each part of the two-section protective cylinder main body 1 is shorter, the rigidity is better, and the deformation risk is smaller. The outer edge of one section of upper end of protecting section of thick bamboo main part 1 and being located the top is provided with annular top backplate 2 of a circle, protects the outer edge of one section of lower extreme of a section of main part 1 and being located the below and is provided with annular end backplate 3 of a circle. The top guard plate 2 and the bottom guard plate 3 are respectively connected with the two sections of the intercommunicating main body 1 in a welding mode, the top guard plate 2 is larger in width, and the bottom guard plate 3 is smaller.
A plurality of rectangular vertical plates 4 which are annularly distributed around the center of the cylinder protecting body 1 are arranged between the upper section and the lower section of the cylinder protecting body 1, the number of the vertical plates 4 is at least 4, the height of each vertical plate 4 is matched with the distance between the top protecting plate 2 and the bottom protecting plate 3, and the width of each vertical plate 4 is the same as that of the bottom protecting plate 3. The projection of vertical riser 4 on vertical direction is along protecting a radial extension of a main part 1, and the border of vertical riser 4 inboard and the surface weld of protecting a main part 1, and the top border, the bottom border of vertical riser 4 weld with the bottom surface of top backplate 2, the top surface of end backplate 3 respectively. An installation groove for inserting the buckle component is formed between the upper section and the lower section of the casing main body 1. Of course, in order to further improve the connection strength between the vertical plates 4 and the top guard plate 2 and the bottom guard plate 3, welded triangular reinforcing plates can be additionally arranged on the side parts.
The buckle assembly of the present invention, as shown in fig. 6 and 7, includes a ring plate fitted to the mounting groove, and a plurality of transverse plates 5 provided on an outer surface of the ring plate and extending in a radial direction of the ring plate. One side of the transverse plate 5 is provided with a short auxiliary plate 6 parallel to the transverse plate 5, a clamping groove 7 is formed between the short auxiliary plate 6 and the transverse plate 5, and the clamping groove 7 is matched with the vertical plate 4 and clamped on the vertical plate 4. The annular plate is enclosed by curved plate body 8 of multistage, passes through bolted connection between two sections adjacent plate body 8, is provided with a set of diaphragm 5 and short subplate 6 on each section plate body 8 at least. The ring plate is generally surrounded by four plate bodies 8, but of course, more or less may be provided. The connecting ends of the plate bodies 8 are provided with connecting sections 12, the connecting sections 12 of two adjacent plate bodies 8 are respectively positioned on the inner side and the outer side, and the two connecting sections 12 are locked through bolts. As shown in fig. 6 and 7, when the plate 8 is installed, the front and rear plates 8 are installed first, and the left and right plates 8 are installed, so that the connecting sections 12 are pressed against each other.
The top protection plate 2 is also provided with a grouting opening 9 for grouting in the area between the top protection plate 2 and the bottom protection plate 3, and an exhaust opening 10 for exhausting air in the area between the top protection plate 2 and the bottom protection plate 3.
In the using process, firstly, drilling an orifice, then installing the casing main body 1 in the orifice, and then installing a buckle assembly; clamping slots 7 which are formed by a transverse plate 5 and a short auxiliary plate 6 and are arranged on a plurality of plate bodies 8 of the buckle component on the vertical plate 4, and enabling the end part of the transverse plate 5 to extend into the soil body; in order to realize better linking and limiting between the end part of the transverse plate 5 and the soil body, one end of the transverse plate 5, which is far away from the plate body 8, is bent to form an elastic hook part 11, and the elastic hook part 11 is used for being inserted into the soil body on the peripheral side to form a circumferential support.
Then, the bonding mortar can be injected into the area between the top protection plate 2 and the bottom protection plate 3 through the grouting opening 9, and after the bonding mortar is fully injected, the subsequent drilling can be carried out after the mortar is dried. The protective cylinder main body 1, the ring buckle assembly, the bonding mortar and the soil body can form multi-angle multi-level three-dimensional bonding and fastening. The invention has numerous bonding nodes and supporting limit nodes, and the stress of each node can be uniformly dispersed to the surrounding soil body through the casing main body 1 and the ring buckle assembly. Therefore, the invention can effectively prevent the casing main body 1 from displacement and deformation, so that the casing main body is kept stable, deflection is prevented, and the stability of subsequent drilling is ensured.
Regarding the design of the grouting ports 9, a circle of concave and annular groove 13 is arranged in the middle of the top protection plate 2 around the center of the protection cylinder main body 1, the cross section of the groove 13 is in a semicircular shape with an upward opening, and a plurality of grouting ports 9 are arranged at the bottom of the groove 13 along the length direction of the groove 13. In this case, the bonding mortar is poured into the groove 13, and the grouting and filling can be achieved by the self-flow of the bonding mortar.
Of course, in order to ensure the filling fullness of the bonding mortar between the top protection plate 2 and the bottom protection plate 3, the invention can also adopt a pressurized grouting mode, that is, as shown in fig. 2 and 3, the invention also comprises a grouting groove 0 matched with the groove 13, wherein the grouting groove 0 is also annular, and the cross section of the grouting groove 0 is semicircular. The grouting groove 0 is reversely buckled on the groove 13 and is connected with the top guard plate 2 through a bolt. And a pressurized grouting channel is defined between the grouting groove 0 and the groove 13, and a grouting inlet 14 is formed in the grouting groove 0. When the mortar injection device is used, pressurized mortar is injected into the pressurized mortar injection channel through the mortar inlet 14, the mortar uniformly enters each area through the plurality of mortar injection ports 9 until the area between the top protection plate 2 and the bottom protection plate 3 is completely filled, generally, the mortar overflows from the air exhaust port 10, as shown in the figure, the air exhaust port 10 is positioned on the outer side of the top protection plate 2 relative to the groove 13, and the position of the air exhaust port 10 can also be arranged in other places convenient to process. In order to prevent mortar from leaking, a sealing gasket 15 is arranged between the grouting groove 0 and the groove 13.
Finally, in order to further improve the stability of the casing main body 1, the present invention may further anchor the casing main body with an existing anchor rod 17, specifically, a circle of inclined portion 16 extending outward and obliquely upward may be provided at the outer edge of the top casing 2, and the inclined portion 16 is anchored with the soil body through the anchor rod 17.
Claims (9)
1. The utility model provides a protector is used in bridge pile foundation construction which characterized in that: comprises a casing main body (1) and a buckle component;
the protective cylinder main body (1) consists of an upper section and a lower section, the outer edge of the upper end of the protective cylinder main body (1) at the upper part is provided with a ring-shaped top guard plate (2), and the outer edge of the lower end of the protective cylinder main body (1) at the lower part is provided with a ring-shaped bottom guard plate (3); a plurality of rectangular vertical plates (4) which are annularly distributed around the center of the casing main body (1) are arranged between the upper section and the lower section of the casing main body (1); the projection of the vertical plate (4) in the vertical direction extends along the radial direction of the casing main body (1), the edge of the inner side of the vertical plate (4) is welded with the outer surface of the casing main body (1), and the top edge and the bottom edge of the vertical plate (4) are respectively welded with the bottom surface of the top protection plate (2) and the top surface of the bottom protection plate (3); an installation groove for inserting the buckle component is formed between the upper section and the lower section of the casing main body (1);
the buckle component comprises a ring plate matched with the mounting groove and a plurality of transverse plates (5) arranged on the outer surface of the ring plate and extending along the radial direction of the ring plate; a short auxiliary plate (6) parallel to the transverse plate (5) is arranged on one side of the transverse plate (5), a clamping groove (7) is formed between the short auxiliary plate (6) and the transverse plate (5), and the clamping groove (7) is matched with the vertical plate (4) and clamped on the vertical plate (4); the ring plate is formed by encircling a plurality of sections of arc-shaped plate bodies (8), two adjacent sections of plate bodies (8) are connected through bolts, and each section of plate body (8) is at least provided with a group of transverse plates (5) and short auxiliary plates (6);
the top guard plate (2) is also provided with a grouting opening (9) for grouting towards the area between the top guard plate (2) and the bottom guard plate (3), and an exhaust opening (10) for exhausting air in the area between the top guard plate (2) and the bottom guard plate (3).
2. The protection device for bridge pile foundation construction of claim 1, characterized in that: the ring plate is formed by four sections of plate bodies (8) in a surrounding mode.
3. The protection device for bridge pile foundation construction of claim 2, characterized in that: one end of the transverse plate (5), which is far away from the plate body (8), is bent to form an elastic hook part (11), and the elastic hook part (11) is used for being inserted into soil on the peripheral side to form a circumferential support.
4. The protection device for bridge pile foundation construction of claim 3, characterized in that: the connecting ends of the plate bodies (8) are provided with connecting sections (12), the connecting sections (12) of two adjacent plate bodies (8) are respectively positioned on the inner side and the outer side, and the two connecting sections (12) are locked through bolts.
5. The protection device for bridge pile foundation construction of claim 4, wherein: the middle part of the top protection plate (2) is provided with a circle of concave and annular groove (13) around the center of the protection cylinder main body (1), the cross section of the groove (13) is in a semicircular shape with an upward opening, and the bottom of the groove (13) is provided with a plurality of grouting ports (9) along the length direction of the groove (13).
6. The protection device for bridge pile foundation construction of claim 5, characterized in that: the grouting groove (0) is matched with the groove (13), the grouting groove (0) is also annular, and the cross section of the grouting groove (0) is semicircular; the grouting groove (0) is reversely buckled on the groove (13) and is connected with the top guard plate (2) through a bolt; a pressurized grouting channel is enclosed between the grouting groove (0) and the groove (13), and a grout inlet (14) is formed in the grouting groove (0).
7. The protection device for bridge pile foundation construction of claim 6, wherein: and a sealing gasket (15) is arranged between the grouting groove (0) and the groove (13).
8. The protection device for bridge pile foundation construction of claim 7, wherein: the exhaust port (10) is positioned on the outer side of the top protection plate (2) relative to the groove (13).
9. The protection device for bridge pile foundation construction of claim 8, wherein: the outer edge of the top protection plate (2) is provided with a circle of inclined part (16) extending outwards and upwards in an inclined mode, and the inclined part (16) is anchored with soil through an anchor rod (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110776160.5A CN113389196B (en) | 2021-07-09 | 2021-07-09 | Protection device is used in bridge pile foundation construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110776160.5A CN113389196B (en) | 2021-07-09 | 2021-07-09 | Protection device is used in bridge pile foundation construction |
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| Publication Number | Publication Date |
|---|---|
| CN113389196A true CN113389196A (en) | 2021-09-14 |
| CN113389196B CN113389196B (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110776160.5A Active CN113389196B (en) | 2021-07-09 | 2021-07-09 | Protection device is used in bridge pile foundation construction |
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| Country | Link |
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| CN (1) | CN113389196B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140255106A1 (en) * | 2013-03-07 | 2014-09-11 | Allan P. Henderson | Perimeter pile anchor foundation |
| CN208563318U (en) * | 2018-06-07 | 2019-03-01 | 浙江华东建设工程有限公司 | Pile foundation casing set |
| CN209227516U (en) * | 2018-10-10 | 2019-08-09 | 恒德建设有限公司 | Cast-in-situ bored pile shield-tube embedment structure |
| CN209941668U (en) * | 2019-03-19 | 2020-01-14 | 安徽联开建设工程有限责任公司 | Waterproof sealing device for pile head of cast-in-place pile |
| CN210738123U (en) * | 2019-07-11 | 2020-06-12 | 中交隧道工程局有限公司 | Bored pile orifice protector |
| CN112176992A (en) * | 2020-10-12 | 2021-01-05 | 西南交通大学 | Construction method of manual hole digging pile and manual hole digging pile |
-
2021
- 2021-07-09 CN CN202110776160.5A patent/CN113389196B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140255106A1 (en) * | 2013-03-07 | 2014-09-11 | Allan P. Henderson | Perimeter pile anchor foundation |
| CN208563318U (en) * | 2018-06-07 | 2019-03-01 | 浙江华东建设工程有限公司 | Pile foundation casing set |
| CN209227516U (en) * | 2018-10-10 | 2019-08-09 | 恒德建设有限公司 | Cast-in-situ bored pile shield-tube embedment structure |
| CN209941668U (en) * | 2019-03-19 | 2020-01-14 | 安徽联开建设工程有限责任公司 | Waterproof sealing device for pile head of cast-in-place pile |
| CN210738123U (en) * | 2019-07-11 | 2020-06-12 | 中交隧道工程局有限公司 | Bored pile orifice protector |
| CN112176992A (en) * | 2020-10-12 | 2021-01-05 | 西南交通大学 | Construction method of manual hole digging pile and manual hole digging pile |
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| Publication number | Publication date |
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| CN113389196B (en) | 2022-06-24 |
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