CN211689973U

CN211689973U - Overpass pile foundation underpinning structure

Info

Publication number: CN211689973U
Application number: CN201922457275.9U
Authority: CN
Inventors: 芦永明
Original assignee: Xinghua Ruida Building Materials Machinery Co ltd
Current assignee: Xinghua Ruida Building Materials Machinery Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-16
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses an overpass pile foundation underpins structure, include by underpinning the stake, install bridge top platform by the up end of underpinning the stake, underpinning the roof beam is installed to the lower terminal surface of bridge top platform, the steel diaphragm is installed to the lower terminal surface of bridge top platform, the lower terminal surface of steel diaphragm is provided with fixed slot, the steel longitudinal plate is installed to the lower terminal surface of steel diaphragm, the fixture block is installed to the up end of steel longitudinal plate, the lower terminal surface of steel longitudinal plate is provided with the jack draw-in groove, the lower terminal surface of steel longitudinal plate is installed from locking-type jack, install jack oil pump from one side of locking-type jack, the underpinning stake is installed to the lower terminal surface of locking-type jack, the surface of underpinning the stake is provided with the gear. The utility model discloses a reinforced and firm steel sheet knot and integrative underpinning pile structure can install fast by the folding each other, simple structure, and the construction degree of difficulty is little, strong adaptability.

Description

Overpass pile foundation underpinning structure

Technical Field

The utility model relates to a bridge engineering and accessory technical field specifically are an overpass pile foundation underpins structure.

Background

With the development of society, more and more infrastructures are provided, and bridges are used as the most important infrastructures to play an important role in the modern society, and various bridges are produced due to various natural conditions, and overpasses are important transportation hubs, and bridge piles used for deep-water bridges, such as sea-crossing bridges, river-crossing bridges and mountain-crossing bridges, may have many problems.

However, the existing underpinning structure of the overpass pile foundation generally has the problems of complex structure, high construction difficulty, difficulty in disassembly after concrete pouring and weak structural adaptation; therefore, the existing requirements are not met, and an overpass pile foundation underpinning structure is provided for the existing needs.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an overpass pile foundation underpins structure to solve the current bridge pile foundation underpins structure that proposes among the above-mentioned background art and generally complicated, the construction degree of difficulty is great, adopts concrete placement back dismantlement difficulty, and the not strong problem of adaptability

In order to achieve the above object, the utility model provides a following technical scheme: an overpass pile foundation underpinning device comprises underpinned piles, a bridge top platform is installed on the upper end face of each underpinned pile, underpinned beams are installed on the lower end face of the bridge top platform, a steel transverse plate is installed on the lower end face of the bridge top platform, a fixing clamping groove is formed in the lower end face of the steel transverse plate, a steel longitudinal plate is installed on the lower end face of the steel transverse plate, a clamping block is installed on the upper end face of the steel longitudinal plate, a jack clamping groove is formed in the lower end face of the steel longitudinal plate, a jack is installed on the lower end face of the steel longitudinal plate, a jack oil pump is installed on one side of the self-locking jack, the underpinned piles are installed on the lower end face of the self-locking jack, gear tracks are arranged on the outer surfaces of the underpinned piles, diagonal braces are installed on the outer surfaces of the gear tracks, gears are installed at one ends of the, the underpinning pile comprises a underpinning pile body and is characterized in that a drill bit is installed on the lower end face of the underpinning pile body, a hydraulic lifting rod is installed on the upper end face of the drill bit, a drilling motor is installed on the upper end face of the hydraulic lifting rod, a steel enclosing plate is installed on the outer surface of the underpinning pile body, and a protruding block is installed on the lower end face of the steel enclosing plate.

Preferably, the underpinned pile is provided with an underpinning beam on the outer surface, the steel transverse plate is positioned in the center of the lower end face of the underpinning beam, and the lower end face of the steel transverse plate is provided with four centrosymmetric fixing clamping grooves.

Preferably, the underpinning beams are cast by reinforced concrete, and the underpinned piles are provided with the underpinning beams on the outer sides.

Preferably, the fixture block is arranged on the outer surface of the two ends of the steel longitudinal plate, and the fixture block and the fixed clamping groove are the same in size.

Preferably, the jack clamping grooves are formed in the outer surfaces of the two ends of the steel longitudinal plate, four self-locking jacks are arranged on the upper end face of each underpinning pile, and the outer diameter of the upper end face of each self-locking jack is the same as the inner diameter of each jack clamping groove.

Preferably, the underpinning pile is of a steel structure, a cavity is arranged on the lower end face of the underpinning pile, and the outer diameter of the cavity is larger than that of the hydraulic lifting rod.

Compared with the prior art, the beneficial effects of the utility model are that: (1) the utility model discloses a structure that fixed slot on the steel diaphragm and the fixture block on the steel longitudinal plate can block, if the top of underpinning pile has a certain distance to the underpinning beam, can adopt steel diaphragm and steel longitudinal plate that can superpose, the easy going on of construction, can increase the lifting surface area of bridge, carry out certain share to the load of bridge body; (2) the utility model distributes the load of the bridge body through a plurality of self-locking jacks, is arranged in the jack clamping groove through the self-locking jacks, and is driven by the jack oil pump to jack the upper end surface during working; (3) the utility model discloses a bracing column is installed to the both sides of underpinning the stake, and if need drag the top, the motor inserts the power, and the motor rotates and drives gear upward movement, and the bracing column of motor one side upwards drags the top, if need not drag the top the time, inserts the power, and the motor rotates and drives gear decline, and the bracing column descends the back and no longer drags the top to the bridge for the underpinning stability of bridge increases.

Drawings

Fig. 1 is a schematic view of the front cross-sectional structure of the present invention.

Fig. 2 is the structure schematic diagram of the steel transverse plate and the steel longitudinal plate of the utility model.

Fig. 3 is the schematic view of the inclined strut and the gear track structure of the present invention.

Fig. 4 is a schematic view of the drill of the present invention.

In the figure: 1. underpinned piles; 2. a bridge top platform; 3. underpinning the beam; 4. a steel transverse plate; 5. fixing the clamping groove; 6. a steel longitudinal plate; 7. a clamping block; 8. a jack slot; 9. a self-locking jack; 10. a jack oil pump; 11. a bump; 12. underpinning the pile; 13. a gear track; 14. a diagonal bracing column; 15. a gear; 16. a motor; 17. a drill bit; 18. a hydraulic lifting rod; 19. a drilling motor; 20. steel coaming; 21. a cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

The motor 16 (model 5IK120 GU-CF), the self-locking jack 9 (model CLL 55-150) and the drilling motor 17 (model Y112M-4) mentioned in the utility model can all be obtained from market purchase or private customization.

Referring to fig. 1 to 4, the present invention provides an embodiment: an underpinning device for an overpass pile foundation comprises an underpinned pile 1, a bridge top platform 2 is arranged on the upper end surface of the underpinned pile 1, an underpinning beam 3 is arranged on the lower end surface of the bridge top platform 2, a steel transverse plate 4 is arranged on the lower end surface of the bridge top platform 2, a fixing clamping groove 5 is arranged on the lower end surface of the steel transverse plate 4, a steel longitudinal plate 6 is arranged on the lower end surface of the steel transverse plate 4, a clamping block 7 is arranged on the upper end surface of the steel longitudinal plate 6, a jack clamping groove 8 is arranged on the lower end surface of the steel longitudinal plate 6, a self-locking jack 9 is arranged on the lower end surface of the steel longitudinal plate 6, a jack oil pump 10 is arranged on one side of the self-locking jack 9, an underpinning pile 12 is arranged on the lower end surface of the self-locking jack 9, a gear track 13 is arranged on the outer surface of the underpinning pile 12, an inclined strut, the lower end face of the underpinning pile 12 is provided with a drill bit 17, the upper end face of the drill bit 17 is provided with a hydraulic lifting rod 18, the upper end face of the hydraulic lifting rod 18 is provided with a drilling motor 19, the outer surface of the underpinning pile 12 is provided with a steel enclosing plate 20, and the lower end face of the steel enclosing plate 20 is provided with a lug 11.

The underpinning beam 3 is installed on the outer surface of the underpinned pile 1, the steel transverse plate 4 is located in the center of the lower end face of the underpinning beam 3, and four centrosymmetric fixing clamping grooves 5 are formed in the lower end face of the steel transverse plate 4, so that the self-locking jack is more stable.

The underpinning beams 3 are cast by reinforced concrete, and the underpinned piles 1 are all provided with the underpinning beams 3 at the outer sides, so that the stress area of the bridge can be increased. The outer surfaces of the two ends of the steel longitudinal plate 6 at the positions of the clamping blocks 7 are the same as the clamping blocks 7 and the fixed clamping grooves 5 in size, so that the clamping blocks 7 and the fixed clamping grooves 5 can be tightly connected.

The jack clamping grooves 8 are located on the outer surfaces of the two ends of the steel longitudinal plate 6, four self-locking jacks 9 are arranged on the upper end surface of each underpinning pile 12, the outer diameter of the upper end surface of each self-locking jack 9 is the same as the inner diameter of each jack clamping groove 8, and the self-locking jacks 9 are more stable.

The underpinning pile 12 is of steel construction and the lower end face of the underpinning pile 12 is provided with a cavity 21, the outer diameter of the cavity 21 being larger than the outer diameter of the hydraulic lifting rod 18 so that the drill bit can be mounted to the lower end face of the underpinning pile 12.

The working principle is as follows: when the device is used, firstly, a power supply is connected, a structure that the fixing clamping groove 5 on the steel transverse plate 4 and the clamping block 7 on the steel longitudinal plate 6 can be clamped is adopted, if the top end of the underpinning pile 12 is a distance away from the underpinning beam 3, the steel transverse plate 4 and the steel longitudinal plate 6 which can be overlapped can be adopted, construction is convenient to carry out, the stress area of the bridge can be increased, load of the bridge body is distributed to a certain extent, the load of the bridge body is distributed through a plurality of self-locking jacks 9, the self-locking jacks 9 are arranged in the jack clamping grooves 8, when in work, the jack oil pump 10 drives the self-locking jacks 9 to drag the upper end face, so that work safety is ensured, the inclined supporting columns 14 are arranged on two sides of the underpinning pile 12, when the jack needs to drag, the motor 16 is connected with the power supply, the motor 16 rotates to drive the gear 15 to move upwards, the inclined supporting columns 14 on one side of the, if the bridge does not need to be jacked, a power supply is connected, the motor 16 rotates to drive the gear 15 to descend, and the bridge is not jacked after the inclined supporting columns 14 descend, so that the underpinning stability of the bridge is greatly improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an overpass pile foundation underpins structure, includes by underpinning stake (1), its characterized in that: the underpinning pile comprises underpinned piles (1), underpinning beams (3) are installed on the upper end face of each underpinning pile (1), steel transverse plates (4) are installed on the lower end face of each underpinning pile (2), fixing clamping grooves (5) are formed in the lower end faces of the steel transverse plates (4), steel longitudinal plates (6) are installed on the lower end faces of the steel transverse plates (4), clamping blocks (7) are installed on the upper end faces of the steel longitudinal plates (6), jack clamping grooves (8) are formed in the lower end faces of the steel longitudinal plates (6), self-locking jacks (9) are installed on the lower end faces of the steel longitudinal plates (6), jack oil pumps (10) are installed on one sides of the self-locking jacks (9), underpinning piles (12) are installed on the lower end faces of the self-locking jacks (9), gear tracks (13) are arranged on the outer surfaces of the underpinning piles (12), the surface mounting of gear track (13) has bracing post (14), gear (15) are installed to the one end of bracing post (14), the surface mounting of gear (15) has motor (16), drill bit (17) are installed to the lower terminal surface of underpinning stake (12), hydraulic lift rod (18) are installed to the up end of drill bit (17), drilling motor (19) are installed to the up end of hydraulic lift rod (18), the surface mounting of underpinning stake (12) has steel bounding wall (20), lug (11) are installed to the lower terminal surface of steel bounding wall (20).

2. The underpinning structure of the overpass pile foundation according to claim 1, characterized in that: the underpinning pile is characterized in that an underpinning beam (3) is mounted on the outer surface of the underpinned pile (1), a steel transverse plate (4) is located in the center of the lower end face of the underpinning beam (3), and four centrosymmetric fixing clamping grooves (5) are formed in the lower end face of the steel transverse plate (4).

3. The underpinning structure of the overpass pile foundation according to claim 1, characterized in that: the underpinning beams (3) are formed by pouring reinforced concrete, and the underpinned beams (3) are arranged on the outer sides of the underpinned piles (1).

4. The underpinning structure of the overpass pile foundation according to claim 1, characterized in that: the outer surfaces of two ends of the steel longitudinal plate (6) are arranged at the positions of the clamping blocks (7), and the clamping blocks (7) are the same as the fixed clamping grooves (5) in size.

5. The underpinning structure of the overpass pile foundation according to claim 1, characterized in that: the jack clamping grooves (8) are located on the outer surfaces of two ends of the steel longitudinal plate (6), four self-locking jacks (9) are arranged on the upper end face of each underpinning pile (12), and the outer diameter of the upper end face of each self-locking jack (9) is the same as the inner diameter of each jack clamping groove (8).

6. The underpinning structure of the overpass pile foundation according to claim 1, characterized in that: the underpinning pile (12) is of a steel structure, a cavity (21) is arranged on the lower end face of the underpinning pile (12), and the outer diameter of the cavity (21) is larger than that of the hydraulic lifting rod (18).