CN221421920U

CN221421920U - High pile wharf anchor bar pile reinforcing structure

Info

Publication number: CN221421920U
Application number: CN202323038817.1U
Authority: CN
Inventors: 罗建美; 王全; 严琛; 陈新; 陈高; 禹精瑞
Original assignee: CCCC Wuhan Harbour Engineering Design and Research Institute Co Ltd
Current assignee: CCCC Wuhan Harbour Engineering Design and Research Institute Co Ltd
Priority date: 2023-11-10
Filing date: 2023-11-10
Publication date: 2024-07-26
Anticipated expiration: 2033-11-10

Abstract

The utility model discloses a high pile wharf anchor bar pile reinforcing structure, wherein an anchor bar pile structure is arranged in an original concrete pile foundation in a penetrating mode, the bottom of the anchor bar pile structure penetrates into a rock stratum, the anchor bar pile structure is composed of combined anchor bar piles and slurry filling layers, and the combined anchor bar piles are arranged at equal intervals around the periphery of a central axis of the anchor bar pile structure by a plurality of anchor bar piles. The utility model does not need large-scale mechanical equipment for construction, and has the advantages of dry construction, no channel occupation and low construction cost.

Description

High pile wharf anchor bar pile reinforcing structure

Technical Field

The utility model relates to the field of reinforcement design of high pile wharfs. More particularly, the utility model relates to a pile reinforcement structure for a high pile wharf anchor bar.

Background

The high pile wharf is a building with complex loading conditions, and is used for bearing vertical loads of wharf dead weight, stacking load, vehicles, process machinery and the like, and also bearing horizontal forces generated by water flow force, wave force, ship mooring force, ship impact force, loading and unloading mechanical operation and the like. Along with the large-scale development trend of ship types, the load of the upper structure of the wharf is increased, so that the bearing capacity of the pile foundations does not meet the requirement, the number of the pile foundations is increased, the section of the pile foundations is enlarged, and the like in the conventional method, but the method needs to disassemble the upper structure of the wharf or large pile sinking equipment, so that the cost is high, and the operation of the wharf is also greatly influenced. In particular, in the high pile frame wharf constructed in the 70 th century, the column feet are usually defined as hinged joints when the frame bent is calculated, the depth of the pile foundation rock embedding is shallow, the pile foundation is repeatedly acted by water flow force, berthing impact force and mooring force load, the pile foundation strata are continuously weathered and even run out over time, the load on the upper part of the wharf is increased, the pile foundation cannot effectively provide vertical force and horizontal force, the conditions of the support caused by the change of the vertical force and the horizontal force are also insufficient, and the safety and the overall stability of the wharf structure are seriously affected. Aiming at the problems, grouting and reinforcement are usually carried out on the periphery of the pile, grouting pipes are driven into the periphery of the pile by the method, cement slurry is poured, soil on the periphery of the pile is solidified, and the resistance on the side of the pile is improved. However, the pile foundation of the wharf is positioned under water throughout the year, the underwater construction is complex, the pile foundation is influenced by stratum geology and the like, grout easily flows into the range beyond the required grouting, the grout is greatly wasted, and the reinforcing effect is hardly ensured. Another method is to set up precast piles for repairing. The precast pile is driven under the wharf front edge and the equipment foundation, is used as a ship backing member and the equipment foundation, is additionally provided with a horizontal tie beam and is connected with the original structure, and the whole reinforcing effect is good. However, the scheme needs to call large piling equipment, the construction site is positioned in the Yangtze river channel, navigation of the channel is affected, and the construction cost is high and the construction period is long.

Disclosure of utility model

The utility model aims to provide a high pile wharf anchor pile reinforcing structure, which does not need large-scale mechanical equipment for construction, does not occupy a channel for dry construction and has low construction cost.

The technical scheme adopted by the utility model for solving the technical problem is as follows: a high pile wharf anchor bar pile reinforcing structure is characterized in that an anchor bar pile structure penetrates into an original concrete pile foundation, and the bottom of the anchor bar pile structure penetrates into a rock stratum.

Preferably, the pile diameter of the anchor rib pile structure is 300-800 mm.

Preferably, the pile top of the anchor bar pile structure is provided with a backfill layer.

Preferably, the anchor bar pile structure is composed of combined anchor bar piles and slurry filling layers, and the combined anchor bar piles are arranged at equal intervals around the periphery of the central axis of the anchor bar pile structure by a plurality of anchor bar piles.

Preferably, the anchor bar pile is composed of a plurality of longitudinal bars and stirrups, and a centering bracket is arranged on the periphery of each longitudinal bar.

Preferably, the middle part of the anchor bar pile structure is embedded with a grouting steel pipe.

The utility model at least comprises the following beneficial effects:

The construction of the anchor bar pile reinforcing structure of the high pile wharf does not need large-scale mechanical equipment, the construction is performed on dry land, a channel is not occupied, the construction cost is low, and the anchor bar pile reinforcing structure has the characteristics of strong pertinence, clear stress, simplicity in construction, small operation surface and the like.

The anchor bar pile is a miniature drilling rock-socketed pile in the engineering, can easily pass through a weak stratum, and the rock entering depth can be accurately controlled through coring.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

FIG. 1 is a cross-sectional view of an application of the anchor pile reinforcing structure of the high pile wharf of the present utility model;

FIG. 2 is a cross-sectional view of a pile reinforcement structure of a high pile wharf anchor bar of the present utility model;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

Fig. 4 is a sectional view of fig. 2B-B.

Reference numerals illustrate: 1 original concrete pile foundation, 2 backfill layer, 3 thick liquids filling layer, 4 anchor bar stake, 5 indulge the muscle, 6 stirrups, 7 centering support, 8 anchor bar stake structures, 9 slip casting steel pipes.

Detailed Description

The present utility model will now be described more fully hereinafter with reference to the accompanying drawings. Those of ordinary skill in the art will be able to implement the utility model based on these descriptions. Before describing the present utility model with reference to the accompanying drawings, it should be noted in particular that: the technical solutions and technical features provided in the sections including the following description in the present utility model may be combined with each other without conflict.

In addition, the embodiments of the present utility model referred to in the following description are typically only some, but not all, embodiments of the present utility model. Therefore, all other embodiments, which can be made by one of ordinary skill in the art without undue burden, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

The utility model is further described in detail below with reference to the drawings and the implementation, and the implementation process is as follows:

As shown in fig. 1, the utility model provides a reinforcing structure of a high pile wharf anchor bar pile 4, an anchor bar pile structure 8 is penetrated into an original concrete pile foundation 1, and the bottom of the anchor bar pile structure 8 penetrates into a rock stratum.

The technical scheme can also comprise the following technical details so as to better realize the technical effects: the pile diameter of the anchor rib pile structure 8 is 300-800 mm.

The technical scheme can also comprise the following technical details so as to better realize the technical effects: the pile top of the anchor bar pile structure 8 is provided with a backfill layer 2, and the backfill layer 2 is C30 fine stone concrete.

The technical scheme can also comprise the following technical details so as to better realize the technical effects: the anchor bar pile structure 8 is composed of combined anchor bar piles 4 and slurry filling layers 3, and the combined anchor bar piles 4 are arranged at equal intervals around the periphery of the central axis of the anchor bar pile structure 8 by a plurality of anchor bar piles 4. The slurry filling layer 3 is formed by grouting HL-80A type high-performance pipeline grouting, and the grouting adopts a hole bottom grouting method.

The technical scheme can also comprise the following technical details so as to better realize the technical effects: the anchor bar pile 4 is composed of a plurality of longitudinal bars 5 and stirrups 6, and a centering bracket 7 is arranged on the periphery of the longitudinal bars 5. In the embodiment, the anchor bar pile 4 is formed by taking 4 HRB 400-grade steel bars with the diameter of 25mm as longitudinal bars 5, setting stirrups 6 with the diameter of 10mm and the interval of 150mm, and setting a centering bracket 7 at the periphery of the longitudinal bars 5.

The technical scheme can also comprise the following technical details so as to better realize the technical effects: grouting steel pipes 9 are buried in the middle of the anchor bar pile structure 8.

Example 1

As shown in figures 2-4, the reinforcing structure of the anchor bar pile 4 of the high pile wharf is designed to adopt 3D 200 miniature combined piles, the outer diameter of the triangular combined pile is 400mm, the anchor bar pile 4 is designed to be 9m in length, the anchor bar pile 4 is fixedly embedded in a reinforced pile body 4m, passes through a powdery clay containing crushed stone layer and is anchored in a wind-caused shale layer 3m. 4 HRB400 grade steel bars with the diameter of 25mm are longitudinally arranged on a single D200 miniature pile, the diameters of stirrups 6 are 10mm, the spacing is 150mm, centering supports 7 are arranged on the periphery of longitudinal ribs 5, grouting steel pipes 9 are buried in the middle of the longitudinal ribs, and the pipe diameters of the grouting pipes are 38mm. The anchor bar pile 4 has smaller diameter, more and dense internal reinforcing steel bars and is usually filled with high-strength grouting material or cement mortar, the construction adopts HL-80A type high-performance pipeline grouting material, and the grouting of the grouting material adopts a hole bottom grouting method.

Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown, it is well suited to various fields of use for which the utility model is suited, and further modifications may be readily made by one skilled in the art, and the utility model is therefore not to be limited to the particular details and examples shown and described herein, without departing from the general concepts defined by the claims and the equivalents thereof.

Claims

1. The anchor bar pile reinforcing structure of the high pile wharf is characterized in that the anchor bar pile structure is penetrated in an original concrete pile foundation, and the bottom of the anchor bar pile structure penetrates into a rock stratum;

The combined type anchor bar pile is formed by uniformly arranging a plurality of anchor bar piles around the periphery of the central axis of the anchor bar pile structure at equal intervals;

The anchor bar pile is composed of a plurality of longitudinal bars and stirrups, and a centering bracket is arranged on the periphery of each longitudinal bar.

2. The high pile wharf anchor bar pile reinforcement structure according to claim 1, wherein the pile diameter of the anchor bar pile structure is 300-800 mm.

3. The high pile wharf anchor pile reinforcing structure of claim 1, wherein the pile top of the anchor pile structure is provided with a backfill layer.

4. The high pile wharf anchor bar pile reinforcing structure of claim 1, wherein a grouting steel pipe is buried in the middle of the anchor bar pile structure.