CN219011192U

CN219011192U - Foundation trench maintenance filling pile structure

Info

Publication number: CN219011192U
Application number: CN202221983456.0U
Authority: CN
Inventors: 汪洋; 沈佳宁; 谢银; 陈真
Original assignee: Anhui Huayun Design Consulting Co ltd
Current assignee: Anhui Huayun Design Consulting Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2023-05-12
Anticipated expiration: 2032-07-29

Abstract

The utility model discloses a foundation trench maintenance filling pile structure which comprises a foundation trench fender pile and a reinforcement cage, wherein the reinforcement cage is placed into a pile hole of the foundation trench fender pile, the reinforcement cage comprises a plurality of vertical main reinforcements, reinforcing ribs and hoops, the plurality of main reinforcements are annularly arranged to form a main reinforcement of the foundation trench fender pile, a plurality of reinforcing ribs are welded on the inner side surface of the main reinforcements, hoops are spirally arranged on the outer side surface of the main reinforcements, the hoops are welded and fixed with the main reinforcements, a net hanging reinforcement structure is arranged on the outer side surface of the foundation trench fender pile, and the foundation trench fender piles are connected through steel pipe supporting components. The beneficial effects are that: the foundation trench maintenance filling pile structure adopts the combination of the foundation trench guard pile and the steel pipe supporting component, and can reduce the extrusion acting force of poor geologic bodies on the foundation trench guard pile, thereby enhancing various mechanical properties of the foundation trench guard pile.

Description

Foundation trench maintenance filling pile structure

Technical Field

The utility model relates to the technical field of construction, in particular to a foundation trench maintenance filling pile structure.

Background

In pile foundation construction, a post grouting method of a cast-in-place pile is often adopted to improve the bearing capacity and the pulling resistance of the pile, and the existing post grouting cast-in-place pile is constructed in a manner that pile holes are formed in foundation soil through mechanical drilling, steel pipe soil squeezing or manual excavation and the like, and a reinforcement cage and cast-in-place concrete are placed in the pile holes to form the pile. And then, after pouring of the cast-in-place pile is completed, cement slurry is injected into the pile end, so that the bearing capacity of the pile body is improved. The friction between the concrete and the foundation soil layer is insufficient after grouting, the firmness degree is reduced due to insufficient grouting between the concrete and the foundation soil layer, and the bearing capacity is insufficient, so that the stability and the bearing capacity of the post-grouting filling pile structure for construction cannot meet the construction use requirements.

Disclosure of Invention

The utility model aims to provide a foundation pit maintenance filling pile structure, which adopts a combination of foundation pit guard piles and steel pipe supporting components, and can reduce extrusion acting force of poor geologic bodies on the foundation pit guard piles, thereby enhancing various mechanical properties of the foundation pit guard piles.

The technical scheme of the utility model is realized as follows:

the utility model provides a filling pile structure is maintained to foundation ditch, includes foundation ditch fender post and steel reinforcement cage, the steel reinforcement cage is put into the stake downthehole of foundation ditch fender post, the steel reinforcement cage includes a plurality of vertical main reinforcements, strengthening rib and stirrup, and a plurality of main reinforcements annular circumferences are arranged and are formed foundation ditch fender post main reinforcement to the medial surface welding at main reinforcements has a plurality of strengthening ribs, the lateral surface spiral of main reinforcements is equipped with the stirrup, stirrup and main reinforcement welded fastening, foundation ditch fender post lateral surface is equipped with the net reinforcing bar structure, be connected through steel pipe supporting part between the foundation ditch fender post.

Further, the net hanging steel bar structure comprises a steel bar net, wherein the steel bar net is hung on the periphery of the foundation trench guard pile through a plurality of groups of net hanging steel bars arranged on the foundation trench guard pile, C25 concrete is sprayed on the steel bar net, and a concrete layer is formed.

Further, the net hanging steel bars are arranged at equal intervals along the height direction of the foundation trench guard piles, one ends of the net hanging steel bars are welded with the main steel bars of the foundation trench guard piles, the other ends of the net hanging steel bars penetrate through the foundation trench guard piles, and transverse tie bars are welded on the outer sides of each group of net hanging steel bars.

Further, the reinforcing ribs are welded and fixed with a plurality of main reinforcing steel bars in a divergent manner by taking the central axis of the foundation trench guard pile as the center in the cross section of the foundation trench guard pile.

Further, the tops of the main reinforcements extend to the upper side of the concrete layer, and the parts of the main reinforcements, which exceed the concrete, are poured with reinforced concrete crown beams for coating the main reinforcements.

The beneficial effects of the utility model are as follows: the foundation trench maintenance filling pile structure adopts the combination of the foundation trench guard pile and the steel pipe supporting component, and can reduce the extrusion acting force of poor geologic bodies on the foundation trench guard pile, thereby enhancing various mechanical properties of the foundation trench guard pile.

A plurality of groups of reinforcing ribs are fixed between a plurality of main reinforcing bars, each group of reinforcing ribs are welded and fixed with a plurality of main reinforcing bars in a divergent mode by taking the central axis of the foundation trench guard pile as the center in the cross section of the foundation trench guard pile, not only are a plurality of main reinforcing bars connected into a whole with higher strength, but also each group of reinforcing ribs in a divergent mode can play a supporting role on a plurality of main reinforcing bars at the center of the foundation trench guard pile, so that the plurality of main reinforcing bars are not easy to fold due to larger extrusion acting force, and the structural stability is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a foundation trench maintenance bored concrete pile structure;

fig. 2 is a schematic structural view of a reinforcement cage;

FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2;

fig. 4 is a schematic structural view of a mesh reinforcement structure;

fig. 5 is a broken-end cross-sectional view of the connection of the foundation pit guard pile and the steel pipe support member.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

According to an embodiment of the utility model, a foundation trench maintenance bored concrete pile structure is provided.

Referring to fig. 1-5, a foundation trench maintenance bored concrete pile structure according to an embodiment of the present utility model includes a foundation trench fender pile 1 and a reinforcement cage 2, the reinforcement cage 2 is placed into a pile hole of the foundation trench fender pile 1, the reinforcement cage 2 includes a plurality of vertical main reinforcements 21, reinforcing ribs 22 and stirrups 23, the plurality of main reinforcements 21 are annularly circumferentially arranged to form a foundation trench fender pile main reinforcement, and a plurality of reinforcing ribs 22 are welded on an inner side surface of the main reinforcements 21, the stirrups 23 are spirally wound on an outer side surface of the main reinforcements 21, the stirrups 23 are welded and fixed with the main reinforcements 21, a net-hanging reinforcement structure 3 is provided on an outer side surface of the foundation trench fender pile 1, and the foundation trench fender piles 1 are connected through steel pipe supporting members 6.

Through the technical scheme: the foundation trench guard pile 1 is used for maintaining foundation trench excavation, and the supporting strength of a foundation trench maintenance filling pile structure is improved by adding the steel pipe supporting part 6 to the foundation trench guard pile 1.

Further, the net-hanging steel bar structure 3 comprises a steel bar net 31, the steel bar net 31 is hung on the periphery of the foundation trench guard pile 1 through a plurality of groups of net-hanging steel bars 32 arranged on the foundation trench guard pile 1, and C25 concrete 33 is sprayed on the steel bar net 31 to form a concrete layer 4.

Through the technical scheme: the steel bar net 31 is hung on the periphery of the foundation trench guard pile 1 through a plurality of groups of net hanging steel bars 32 arranged on the foundation trench guard pile 1, C25 concrete 33 is sprayed on the steel bar net 31, and a concrete layer 4 is formed, so that the strength can be improved, and cracking can be prevented.

Further, the net hanging steel bars 32 are arranged at equal intervals along the height direction of the foundation trench fender post 1, one end of each net hanging steel bar 32 is welded with the main steel bar of the foundation trench fender post, the other end of each net hanging steel bar 32 penetrates through the foundation trench fender post 1, and transverse tie bars 34 are welded on the outer sides of each net hanging steel bar 32.

Through the technical scheme: the lateral tie bars 34 are welded on the outer side of each set of net hanging steel bars 32, so that the net hanging steel bars 32 can bear tensile stress and compressive stress respectively.

Further, the reinforcing ribs 22 are welded and fixed to the plurality of main reinforcing bars 21 in a divergent manner around the central axis of the foundation pit fender post 1 in the cross section of the foundation pit fender post 1.

Through the technical scheme: each group of reinforcing ribs 22 of divergence connects main reinforcing steel bars 21 in the middle of a plurality of main reinforcing steel bars 21, and each group of reinforcing ribs 22 not only connects a plurality of main reinforcing steel bars 21 into a whole with higher strength, but also the reinforcing ribs 22 of divergence can play a supporting role on a plurality of main reinforcing steel bars 21 in the center of the foundation trench fender pile 1 for a plurality of main reinforcing steel bars 21 are difficult to be folded due to the action of larger extrusion force, and the stability of the whole structure is improved.

Further, the tops of the main reinforcements 21 extend above the concrete layer 4, and the parts of the main reinforcements 21, which exceed the concrete, are poured with reinforced concrete crown beams 5 which cover the main reinforcements 21.

Through the technical scheme: the reinforced concrete crown beam 5 which coats the main reinforcing steel bars 21 is poured on the part of the main reinforcing steel bars 21 exceeding the concrete, so that the collapse of the edge of the top of the foundation pit can be effectively prevented.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a filling pile structure is maintained to foundation ditch, its characterized in that, including foundation ditch fender post (1) and steel reinforcement cage (2), in the stake hole of foundation ditch fender post (1) is put into to steel reinforcement cage (2), steel reinforcement cage (2) include a plurality of vertical main reinforcing bars (21), strengthening rib (22) and stirrup (23), a plurality of main reinforcing bars (21) annular circumference are arranged and are formed foundation ditch fender post main muscle to the medial surface welding at main reinforcing bar (21) has a plurality of strengthening ribs (22), the lateral surface spiral of main reinforcing bar (21) is equipped with stirrup (23), stirrup (23) and main reinforcing bar (21) welded fastening, foundation ditch fender post (1) lateral surface is equipped with and hangs net steel bar structure (3), be connected through steel pipe supporting part (6) between the foundation ditch fender post (1).

2. A foundation pit maintenance bored concrete pile structure according to claim 1, wherein the net-hanging reinforcement structure (3) comprises a reinforcement net (31), the reinforcement net (31) is hung on the periphery of the foundation pit enclosure pile (1) through a plurality of net-hanging reinforcement bars (32) arranged on the foundation pit enclosure pile (1), C25 concrete (33) is sprayed on the reinforcement net (31), and a concrete layer (4) is formed.

3. The foundation trench maintenance bored concrete pile structure according to claim 2, wherein the net hanging steel bars (32) are arranged at equal intervals along the height direction of the foundation trench guard pile (1), one end of each net hanging steel bar (32) is welded with the main steel bar of the foundation trench guard pile, the other end penetrates through the foundation trench guard pile (1), and transverse tie bars (34) are welded on the outer sides of each net hanging steel bar (32).

4. A foundation pit maintenance cast-in-place pile structure according to claim 1, characterized in that the reinforcing bars (22) are welded to a number of main reinforcing bars (21) in a divergent manner in the cross section of the foundation pit fender pile (1) centered on the central axis of the foundation pit fender pile (1).

5. Foundation pit maintenance bored concrete pile structure according to claim 2, characterized in that the tops of several main reinforcements (21) extend above the concrete level (4), and that the parts of the main reinforcements (21) beyond the concrete are poured with reinforced concrete crowns (5) covering the main reinforcements (21).