CN214272173U - Bridge pile foundation void emergency rescue comprehensive treatment structure - Google Patents
Bridge pile foundation void emergency rescue comprehensive treatment structure Download PDFInfo
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- CN214272173U CN214272173U CN202023184632.8U CN202023184632U CN214272173U CN 214272173 U CN214272173 U CN 214272173U CN 202023184632 U CN202023184632 U CN 202023184632U CN 214272173 U CN214272173 U CN 214272173U
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Abstract
The utility model relates to a bridge pile foundation is vacated to meet an urgent need and is synthesized punishment structure, include: the method comprises a pile foundation void area, a steel sleeve, underwater bottom sealing concrete, a pile foundation and a steel cofferdam; a steel cofferdam is arranged around the pile foundation, a transverse enclosing purlin and a longitudinal enclosing purlin are arranged inside the steel cofferdam, and an inclined strut is arranged between the transverse enclosing purlin and the longitudinal enclosing purlin; and pouring underwater back cover concrete at a certain position below a pile foundation void area of the pile foundation, mounting a steel sleeve on the upper part of the underwater back cover concrete, and pouring self-compacting concrete in the steel sleeve. The utility model has the advantages that: the void layer shaped filling mould is adopted to fill and reinforce the void area of the pile foundation, and the support steel plate support is arranged near the residual support concrete at the defect position, so that the operation is simple and the void layer filling efficiency is high; the steel sleeve is wrapped outside the vicinity of the pile foundation void area and is filled with self-compacting concrete, the steel sleeve is reinforced by adopting an annular hoop and vertical reinforcing ribs, and the bearing capacity of the pile foundation void area can be obviously increased.
Description
Technical Field
The utility model relates to a bridge pile foundation coming to nothing punishment system, in particular to site operation efficiency is high, the bridge pile foundation comes to nothing and consolidates effectual, the higher bridge pile foundation that the wholeness is higher and takes off emergent comprehensive punishment structure of speedily carrying out rescue work belongs to the civil engineering field, is applicable to the highway and widens the engineering.
Background
River scouring is one of the main reasons for the occurrence of bridge water damage accidents, after a bridge is built, the river bed at the bridge position is cut due to water flow scouring and human production activities, the concrete strength of a pile foundation is low, the river bed is directly exposed to the external environment after being cut, the concrete is gradually worn away due to erosion and abrasion of water flow and corrosion of other external adverse environmental conditions for a long time, a concrete protective layer of a pile column type bridge pile foundation is peeled off, steel bars are exposed and corroded, the diameter shrinkage phenomenon of a pile foundation is caused, and a pile head is caused to be void when the development is serious.
In view of this, in order to quickly make up for the defects of the pile foundation, reduce the cost of bridge reinforcement and reconstruction, accelerate the field construction efficiency of the bridge pile foundation void reinforcement, improve the bearing performance of the pile foundation after the bridge pile foundation void reinforcement and ensure the durability of the pile foundation, the invention provides a comprehensive emergency treatment structure for bridge pile foundation void emergency, which has high field construction efficiency, good bridge pile foundation void reinforcement effect and high integrity.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming not enough among the prior art, provide a bridge pile foundation void and consolidate effectual, the higher emergent comprehensive treatment structure of speedily carrying out rescue work of bridge pile foundation void that the wholeness is higher.
The comprehensive treatment structure for bridge pile foundation void emergency rescue comprises a pile foundation void area, a steel sleeve, underwater bottom sealing concrete, a pile foundation and a steel cofferdam; a steel cofferdam is arranged around the pile foundation, a transverse enclosing purlin and a longitudinal enclosing purlin are arranged inside the steel cofferdam, and an inclined strut is arranged between the transverse enclosing purlin and the longitudinal enclosing purlin; and pouring underwater back cover concrete at a certain position below a pile foundation void area of the pile foundation, mounting a steel sleeve on the upper part of the underwater back cover concrete, and pouring self-compacting concrete in the steel sleeve.
Preferably, the method comprises the following steps: a supporting steel plate is installed near the residual supporting concrete at the defect position of the pile foundation void area, a void layer shaped filling mould is installed outside the pile foundation void area, the void layer shaped filling mould is provided with a grouting hole, and self-leveling micro-expansion concrete is filled in the void layer shaped filling mould; the outer diameter of the void layer grouting is larger than the outer diameter of the pile foundation.
Preferably, the method comprises the following steps: the void layer regularization perfusion mould comprises two semicircular moulds, and the two semicircular moulds are connected through a hinged plate and an anchor.
Preferably, the method comprises the following steps: the steel sleeve comprises a steel sleeve in a tied beam area and a steel sleeve in a non-tied beam area; arranging vertical steel bars and circumferential steel bars in the steel sleeve and pouring self-compacting concrete; an annular hoop and a vertical reinforcing rib are arranged outside the steel sleeve; the steel sleeve is two semicircular sleeves, the steel sleeve is welded and assembled in sections through welding seams, and two adjacent sections of welding seams are staggered.
Preferably, the method comprises the following steps: a reserved tie beam notch is formed in the joint of the steel sleeve in the tie beam area and the tie beam, steel sleeve anchoring plates are welded to two sides of the reserved tie beam notch, and the steel sleeve anchoring plates are fixed to the tie beam through expansion bolts.
The utility model has the advantages that:
(1) the utility model discloses a coming to nothing layer regularization fills the mould and fills the reinforcement to pile foundation coming to nothing region, supports near the concrete installation at the defective position surplus and props up a steel sheet support, then the mould is filled in the installation coming to nothing layer regularization, fills self-leveling micro-expansion concrete, easy operation, coming to nothing layer packing efficiency height.
(2) The utility model discloses near pile foundation dead zone district outsourcing steel sleeve to pour into self-compaction concrete, steel sleeve adopts annular staple bolt, vertical reinforcement rib to advance to consolidate outward. The steel sleeve of the tie beam area is reserved with a notch and fixed on the tie beam through the anchoring plate, so that the bearing capacity of a pile foundation void area can be obviously increased.
Drawings
FIG. 1 is a schematic view of the comprehensive treatment structure for bridge pile foundation void emergency rescue of the utility model;
FIG. 2 is a schematic cross-sectional view of the comprehensive treatment structure for bridge pile foundation void emergency rescue of the utility model;
FIG. 3 is a schematic view of the present invention illustrating filling of a bridge pile foundation void area;
FIG. 4 is a schematic view of a filling section of the bridge pile foundation void area;
fig. 5 is the utility model discloses near pile foundation void area outsourcing steel sleeve sketch map.
Description of reference numerals: 1-capping beam, 2-pier, 3-tie beam, 4-pile foundation void area, 5-steel sleeve, 6-underwater back cover concrete, 7-self-compacting concrete, 8-pile foundation, 9-tie beam area steel sleeve, 10-non-tie beam area steel sleeve, 11-steel cofferdam, 12-transverse purlin, 13-longitudinal purlin, 14-diagonal brace, 15-vertical steel bar, 16-circumferential steel bar, 17-annular hoop, 18-vertical reinforcing rib, 19-welding line, 20-steel sleeve anchoring plate, 21-expansion bolt, 22-supporting steel plate, 23-self-leveling micro-expansion concrete, 24-grouting hole, 25-void layer sizing pouring mold, 26-defect position residual supporting concrete, 27-hinged plate, 28-anchor, concrete, 29-bottom sealing concrete section steel barrier strip, 30-reserved tie beam notch.
Detailed Description
The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to aid in understanding the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
As an embodiment, fig. 1 is the utility model discloses bridge pile foundation void emergency rescue comprehensive treatment structure sketch map, bridge pile foundation void emergency rescue comprehensive treatment structure includes bent cap 1, pier 2, tie beam 3, pile foundation void region 4, steel sleeve 5, under water back cover concrete 6, pile foundation 8, steel cofferdam 11. Pier 2 is arranged at the lower part of the bent cap 1, pile foundation 8 is arranged at the lower part of the pier 2, and a tie beam 3 is arranged between the pile foundations 8. Fig. 2 is the utility model discloses bridge pile foundation is vacated to meet an urgent need and is synthesized punishment structure cross-section schematic diagram, pile foundation 8 adopt steel cofferdam 11 to carry out the cofferdam all around, and 11 inside settings of steel cofferdam transversely enclose purlin 12, vertically enclose purlin 13, transversely enclose purlin 12, vertically enclose and set up bracing 14 between the purlin 13 and consolidate. The method comprises the steps of firstly carrying out early emergency treatment on a pile foundation void area 4, installing a support steel plate 22 near residual support concrete 26 at a defect position for supporting, then installing a void layer forming pouring mold 25 outside the pile foundation void area 4, and pouring C40 self-leveling micro-expansion concrete from a pouring hole 24. Then, the bottom-sealing concrete section steel barrier strip 29 is installed, the underwater bottom-sealing concrete 6 is poured, and the bottom-sealing concrete section steel barrier strip 29 is wrapped outside the underwater bottom-sealing concrete 6. The upper part of the underwater bottom sealing concrete 6 is provided with a steel sleeve 5, vertical steel bars 15 and circumferential steel bars 16 are arranged in the steel sleeve 5, and self-compacting concrete 7 is poured.
Fig. 3 is the utility model discloses bridge pile foundation dead zone fills the schematic diagram, and fig. 4 is the utility model discloses bridge pile foundation dead zone fills and fills the section schematic diagram. The pile foundation void area is filled by adopting a void layer regularization filling mould 25 which comprises two semicircular moulds, wherein the two semicircular moulds are connected through a hinged plate 27 and an anchor 28. In order to ensure that the C40 self-leveling micro-expansion concrete poured into the void layer can be effectively combined with the self-compacting concrete 7 poured into the steel sleeve 5, the outer diameter of the void layer grouting is slightly larger than the outer diameter of the pile foundation 8.
Fig. 5 is the utility model discloses near the regional outsourcing steel sleeve sketch map of pile foundation void, steel sleeve 5 chooses for use Q345NH resistant weathering steel, and steel sleeve 5 is two semicircular sleeves, assembles through 19 segmentation welds of welding seam, and adjacent two sections vertical welding seam should stagger more than 45 mutually. Vertical reinforcing steel bars 15 and circumferential reinforcing steel bars 16 are arranged in the steel sleeve 5, and self-compacting concrete 7 is poured by adopting auxiliary devices such as a string barrel, a chute and a chute. In addition, in order to avoid the deformation of the steel sleeve 5 in the pouring process of the self-compacting concrete 7, an annular hoop 17 and a vertical reinforcing rib 18 are arranged outside the steel sleeve 5 for further reinforcement.
The steel sleeve 5 comprises a steel sleeve 9 in a tie beam area and a steel sleeve 10 in a non-tie beam area, a reserved tie beam notch 30 is formed in the joint of the steel sleeve 9 in the tie beam area and the tie beam 3, steel sleeve anchoring plates 20 are welded to two sides of the reserved tie beam notch 30, and the steel sleeve anchoring plates 20 are fixed on the tie beam 3 through expansion bolts 21.
Claims (5)
1. Bridge pile foundation void emergency rescue synthesizes punishment structure, its characterized in that: the underwater foundation concrete pile comprises a pile foundation void area (4), a steel sleeve (5), underwater bottom sealing concrete (6), a pile foundation (8) and a steel cofferdam (11); a steel cofferdam (11) is arranged around the pile foundation (8), a transverse enclosing purlin (12) and a longitudinal enclosing purlin (13) are arranged inside the steel cofferdam (11), and an inclined strut (14) is arranged between the transverse enclosing purlin (12) and the longitudinal enclosing purlin (13); pouring underwater back cover concrete (6) at a certain position below a pile foundation void region (4) of a pile foundation (8), installing a steel sleeve (5) on the upper part of the underwater back cover concrete (6), and pouring self-compacting concrete (7) in the steel sleeve (5).
2. The bridge pile foundation void emergency rescue comprehensive treatment structure of claim 1, characterized in that: a supporting steel plate (22) is installed near the residual supporting concrete (26) at the defect position of the pile foundation void area (4), a void layer sizing pouring mold (25) is installed on the outer side of the pile foundation void area (4), the void layer sizing pouring mold (25) is provided with a grouting hole (24), and self-leveling micro-expansion concrete (23) is poured into the void layer sizing pouring mold (25); the outer diameter of the void layer grouting is larger than that of the pile foundation (8).
3. The comprehensive treatment structure for bridge pile foundation void emergency rescue according to claim 2, characterized in that: the void layer sizing and pouring mould (25) comprises two semicircular moulds which are connected through a hinge plate (27) and an anchor bolt (28).
4. The bridge pile foundation void emergency rescue comprehensive treatment structure of claim 1, characterized in that: the steel sleeve (5) comprises a steel sleeve (9) in a tied beam area and a steel sleeve (10) in a non-tied beam area; vertical steel bars (15) and circumferential steel bars (16) are arranged in the steel sleeve (5), and self-compacting concrete (7) is poured; an annular hoop (17) and a vertical reinforcing rib (18) are arranged outside the steel sleeve (5); the steel sleeve (5) is two semicircular sleeves, the steel sleeve (5) is welded and assembled in sections through welding seams (19), and the adjacent two sections of welding seams (19) are staggered.
5. The comprehensive treatment structure for bridge pile foundation void emergency rescue according to claim 4, characterized in that: a reserved tie beam notch (30) is formed in the joint of the steel sleeve (9) in the tie beam area and the tie beam (3), steel sleeve anchoring plates (20) are welded to the two sides of the reserved tie beam notch (30), and the steel sleeve anchoring plates (20) are fixed to the tie beam (3) through expansion bolts (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023184632.8U CN214272173U (en) | 2020-12-25 | 2020-12-25 | Bridge pile foundation void emergency rescue comprehensive treatment structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023184632.8U CN214272173U (en) | 2020-12-25 | 2020-12-25 | Bridge pile foundation void emergency rescue comprehensive treatment structure |
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| CN214272173U true CN214272173U (en) | 2021-09-24 |
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| CN202023184632.8U Active CN214272173U (en) | 2020-12-25 | 2020-12-25 | Bridge pile foundation void emergency rescue comprehensive treatment structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118422704A (en) * | 2024-07-04 | 2024-08-02 | 中铁三局集团有限公司 | Scour prevention bridge pier pile foundation structure and construction device thereof |
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2020
- 2020-12-25 CN CN202023184632.8U patent/CN214272173U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118422704A (en) * | 2024-07-04 | 2024-08-02 | 中铁三局集团有限公司 | Scour prevention bridge pier pile foundation structure and construction device thereof |
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Address after: 610047 area a and B, 8th floor, Sichuan Expressway Building, No.90, West 1st section of 2nd Ring Road, Wuhou District, Chengdu City, Sichuan Province Patentee after: Sichuan Communications Construction Group Co.,Ltd. Address before: 610041 area a and B, 8th floor, Sichuan Expressway Building, No.90, West 1st section of 2nd Ring Road, Wuhou District, Chengdu City, Sichuan Province Patentee before: Sichuan Communications Construction Group Co.,Ltd. |
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