CN219280687U - Device for repairing broken damage of pile foundation of wharf and pile foundation structure of high-pile wharf - Google Patents
Device for repairing broken damage of pile foundation of wharf and pile foundation structure of high-pile wharf Download PDFInfo
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- CN219280687U CN219280687U CN202320153353.XU CN202320153353U CN219280687U CN 219280687 U CN219280687 U CN 219280687U CN 202320153353 U CN202320153353 U CN 202320153353U CN 219280687 U CN219280687 U CN 219280687U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
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Abstract
The utility model aims at providing a pile foundation structure that is used for repairing device and high pile pier of pier pile foundation fracture damage for the cover establish the fracture pile foundation that treats the restoration and can be filled by restoration thick liquid grout pipe, and set up in the grout intraductal just be used for by spacing portion etc. that the outer wall of fracture pile foundation supported. Compared with the prior art, the broken pile foundation can be quickly repaired while the bearing capacity of the broken pile foundation of the wharf after repair is improved.
Description
Technical Field
The utility model relates to the field of buildings, in particular to a device for repairing broken damage of a pile foundation of a wharf and a pile foundation structure of a high pile wharf.
Background
Pile foundation is a common foundation structure in the building field, and the building index height during construction plays a vital role in the quality of a building structure on the foundation structure.
In the prior art, a high pile wharf is widely applied to various foundations capable of pile sinking, particularly a common wharf structure form on a soft soil foundation, and the high pile wharf is generally composed of pile foundations and upper structures, wherein the pile foundations generally adopt prestressed pipe piles, prestressed square piles, steel pipe piles, bored piles and the like; the upper structure generally adopts a reinforced concrete structure and comprises members such as pile caps, cross beams, longitudinal beams, panels and the like, wherein the beam slab type structure is a structural form commonly adopted by high pile wharfs.
However, when pile foundation in the high pile wharf breaks, it is generally difficult to repair the broken part, even if common cement mortar is used to repair the broken part, or reinforcing members such as anchor ear are used to reinforce the broken part, the bearing capacity of the pile foundation is difficult to recover after repair, and in addition, the repair mode needs to be matched with the used machine and tool, and the process is complex, for example: the repair and reinforcement measures of the existing pile foundation adopt the following steps: the polymer cement mortar is used for repairing, pasting carbon fiber cloth, enlarging a cross section, coating, reinforcing a steel anchor ear and the like, and most of the polymer cement mortar is used for repairing the durability of the pile foundation, so that the original pile foundation is required to be kept intact mostly and is not broken and destroyed. For the broken pile foundation, a new pile foundation is usually beaten nearby the broken pile foundation, a cast-in-place concrete pier is used for supporting the broken pile upper structure together, the pile foundation bearing capacity can be restored by such measures, but the construction cost of reinstalling the pile foundation and pouring is high, the repair time, namely the construction period, is long, the effect cannot be achieved in a short time, and the residual structure and bearing capacity of the original broken pile foundation are not effectively utilized, so that the repair cost is high.
Therefore, how to provide a device for repairing broken damage of a pier pile foundation, so as to facilitate rapid repair of the broken pile foundation and improve the bearing capacity of the broken pile foundation is a technical problem to be solved in the utility model.
Disclosure of Invention
Aiming at the defects or shortcomings of the prior art, the technical problem to be solved by the utility model is to provide a device for repairing broken damage of a wharf pile foundation, so that the broken pile foundation can be quickly repaired conveniently, and the bearing capacity of the broken pile foundation is improved.
In order to solve the technical problems, the utility model provides a device for repairing broken damage of a pile foundation of a wharf, which comprises: grouting pipe used for sleeving a broken pile foundation to be repaired and filled with repair slurry:
and the limiting part is arranged in the grouting pipe and used for being propped against the outer wall of the broken pile foundation.
Further preferably, the limiting portion includes: and a plurality of limiting parts are arranged along the circumference of the grouting pipe.
Further preferably, the limiting part is arranged on the circumferential side wall in the grouting pipe in a welding or glue connection mode.
Further preferably, the method further comprises: and the limiting parts are arranged at equal intervals along the axial direction of the grouting pipe.
Further preferably, the distance between two adjacent limit portions is 1-1.5m.
Further preferably, the limiting part is a metal block connected with the inner wall of the grouting pipe.
Further preferably, the limiting portion is an elastic body connected with the inner wall of the grouting pipe.
Further preferably, the limiting portion includes at least: a metal block connected with the inner wall of the grouting pipe, and an elastomer connected with the inner wall of the grouting pipe; wherein the elastomer is a rubber body; the metal block is an iron block, and the elastomer is used for being extruded by the broken pile foundation to form the supporting.
Further preferably, the metal block and the elastic body are spaced apart from each other.
Further preferably, the thickness of the grouting pipe is 10% -15% of the diameter of the broken pile foundation.
Further preferably, the grouting pipe is a stainless steel pipe body.
The application also provides a pile foundation structure of high pile pier, include: the device for repairing the broken damage of the wharf pile foundation.
Compared with the prior art, the method can conveniently repair the broken pile foundation rapidly and improve the bearing capacity of the broken pile foundation.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:
fig. 1: the structural schematic diagram of the device for repairing the broken damage of the pile foundation of the wharf in the first embodiment of the utility model;
fig. 2: a schematic view of a partial cross-sectional structure shown in A-A of fig. 1;
fig. 3: a workflow diagram of a method for repairing a broken damage to a pier foundation in a first embodiment of the present utility model;
fig. 4: a specific flowchart of step S20 in the first embodiment of the present utility model;
fig. 5: specific flowcharts of steps S11 to S20 in the first embodiment of the present utility model;
fig. 6: a specific flowchart of steps S11 to S20 is preferred in the first embodiment of the present utility model;
fig. 7: another preferred embodiment of the first embodiment of the present utility model is a specific flowchart of steps S11 to S20;
fig. 8: a schematic view of a partial cross-sectional structure shown in A-A of fig. 1 in a second embodiment of the present utility model.
Reference numerals
The pile foundation 1, the fracture part 11, the grouting pipe 2, the limiting part 21, the metal block 21a, the elastic body 21b, the top 22, the water surface 4 and the mud surface 3.
Detailed Description
The conception, specific structure, and technical effects of the present utility model will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present utility model.
Example 1
As shown in fig. 1 to 7, a first embodiment of the present utility model provides an apparatus for repairing a broken damage of a pile foundation of a wharf, comprising: the grouting device comprises a grouting pipe 2 used for sleeving a broken pile foundation 1 to be repaired and filled with repair slurry, a limiting part 21 arranged in the grouting pipe 2 and used for being abutted by the outer wall of the broken pile foundation 1, and the like.
Through the structure, when repairing the fracture part 11 of the fracture pile foundation 1 to be repaired, the repair slurry is filled between the grouting pipe 2 and the fracture pile foundation 1 by sleeving the grouting pipe 2 on the fracture pile foundation 1, and the repair slurry is limited by the limiting part 21, so that the grouting pipe 2 can be prevented from inclining, the grouting pipe 2 and the fracture pile foundation 1 can be quickly and integrally formed and coaxially arranged, the fracture pile foundation 1 can be conveniently and quickly repaired, and the bearing capacity of the fracture pile foundation 1 is improved.
In addition, it should be noted that, in order to facilitate the abutment or clamping of the limiting portion 21 against the broken pile foundation 1, the limiting portion 21 in the present embodiment may gradually protrude from one end of the connecting grouting pipe 2 toward one end of the abutment or clamping broken pile foundation 1, or gradually decrease along the width perpendicular to the radial direction of the grouting pipe, so as to form a stepped structure.
Further, as a further preferable example, one end of the circumferential outer wall of the stopper 21 in the present embodiment which abuts or engages the broken pile foundation 1 is arc-shaped so as to fit the broken pile foundation.
In addition, it should be noted that the limiting portion 21 in the present embodiment may be disposed on the circumferential side wall in the grouting pipe 2 by welding or gluing.
Further preferably, in order to make the stress of the broken pile foundation 1 in the circumferential direction relatively uniform, the limiting portion 21 includes: and a plurality of limiting pieces are arranged along the circumferential direction of the grouting pipe 2.
Further preferably, the limiting portion 21 is provided on an inner wall of the grouting pipe 2.
Further preferably, in order to ensure that after the repairing of each area in the axial direction of the broken pile foundation, the bearing capacity of each area can keep good consistency, and the device is convenient to assemble and fix, the device for repairing broken damage of the pile foundation of the wharf further comprises a plurality of limiting parts 21, and each limiting part 21 is arranged at equal intervals along the axial direction of the grouting pipe 2.
Further preferably, the distance between two adjacent stopper portions 21 is 1 to 1.5m.
Further preferably, in order to meet the design and use requirements in practical applications, the limiting portion 21 in this embodiment is a metal block 21a connected to the inner wall of the grouting pipe 2.
Alternatively, the limiting portion 21 is an elastic body 21b connected to the inner wall of the grouting pipe 2. The limit part 21 can be tightly abutted against the broken pile foundation 1 by the elastic deformation of the elastic body 21b, so that the grouting pipe 2 and the broken pile foundation 1 can be positioned.
Further preferably, the grouting pipe 2 is a stainless steel pipe body.
It should be noted that the grouting pipe 2 in this embodiment is described by taking a stainless steel pipe body as an example of a steel sleeve, and it is obvious that the grouting pipe 2 in this embodiment may be another metal sleeve such as a copper pipe, a composite material such as a pipe material composed of carbon fibers, or the like.
Further preferably, the thickness of the grouting pipe 2 is 10% -15% of the diameter of the broken pile foundation 1, so that the prepared grouting pipe 2 can prevent the situation that cracks or damages occur due to displacement or deformation of the grouting pipe 2 during grouting or after repairing the broken pile foundation 1 when in use, and the bearing capacity of the broken pile foundation 1 can reach the bearing capacity of the grouting pipe during design after the grouting repair is performed through the grouting pipe 2.
In addition, the first embodiment of the present utility model also provides a method for repairing the broken damage of the pile foundation of the wharf, which comprises the following steps:
step S10, determining a broken pile foundation 1 of a wharf structure, and processing the upper part of the broken pile foundation 1 to obtain a broken part 11 exposed to the outside on the broken pile foundation 1;
step S20, sleeving a grouting pipe 2 into the broken pile foundation 1 in a hoisting mode, and enabling the grouting pipe 2 to sink into the ground to a preset depth distance;
and S30, pouring repair slurry into a gap between the grouting pipe 2 and the broken pile foundation 1 until the top 22 of the grouting pipe 2 is covered, stopping pouring until the grouting pipe 2 and the broken pile foundation 1 are integrally formed, so that the repair slurry is solidified until the material strength of the repair slurry reaches a corresponding strength value, for example, the designed bearing strength of the material of the pile foundation, and then completing repair work.
By the above contents: through establish grout pipe 2 in the outside cover of fracture pile foundation 1 to make behind the depth distance preset in deep underground with grout pipe 2, then through in grout pipe 2 with the mode of repairing slurry is poured into in the gap of fracture pile foundation 1, can realize grout pipe 2 and fracture pile foundation 1 integrated into one piece fast, with promote fracture pile foundation 1 bearing capacity after repairing, and, need not complicated instrument and technology to repair fracture position 11 of fracture pile foundation 1, can be when promoting fracture pile foundation 1 of pier bearing capacity after repairing, repair fracture pile foundation 1 fast. In this embodiment, the underground may be below the mud surface 3 having the water depth, or below the wet land close to dry.
Further preferably, the step S20 includes the steps of:
step S201, sleeving a grouting pipe 2 into the broken pile foundation 1 in a hoisting mode, and positioning through a pile driver positioning frame so that the grouting pipe 2 and the broken pile foundation 1 are coaxially arranged;
step S202, judging whether the depth distance of the grouting pipe 2 sinking into the ground under the action of gravity is smaller than a preset value; the predetermined value may preferably be the distance from the top 22 of the bearing layer to the ground after the pile foundation has been submerged.
And S203, if yes, hammering the grouting pipe 2 through a pile driver until the grouting pipe 2 reaches a preset distance, stopping hammering, otherwise, entering step S30.
Through the above mode, the fastness of the bearing capacity of the broken pile foundation 1 can be improved, and as the grouting pipe 2 and the broken pile foundation 1 are coaxially arranged, the grouting pipe 2 is stressed uniformly in all directions and inclined when being grouted, and the integral structure formed by the grouting pipe 2 and the broken pile foundation 1 integrally meets the circumferential direction and the bearable bearing capacity of the top 22 uniformly, so that the maximum bearing capacity of the grouting pipe 2 and the top 22 can be improved, and the larger deformation of the grouting pipe can be prevented.
Further preferably, before step S20, and after step S10, the method further comprises the steps of:
step S15, judging whether the fracture part 11 of the fracture pile foundation 1 is inclined and shifted or not;
and S16, if so, judging whether the inclination is larger than a preset degree or the displacement distance of the fracture pile foundation 1 along the circumferential displacement rotation is larger than a preset distance value, otherwise, entering step S20. The preset degree is preferably 5 degrees, and the inclination is the included angle between the axial direction and the horizontal direction of the breaking part 11 of the pile foundation. The distance value is preferably 10cm.
Step S17, if the inclination is larger than the preset degree or the displacement distance is larger than the preset distance value, the broken pile foundation 1 is displaced and repaired to a preset repairing state, and then the step S20 is carried out.
By the method, the broken pile foundation 1 which needs to adopt the repairing mode and structure of the grouting pipe 2 can be conveniently distinguished, so that the cost is saved, and the repairing efficiency is improved.
Further preferably, the method further comprises the following steps before step S20:
step S11, obtaining pile foundation parameters of the broken pile foundation 1 and a preset parameter formula, and determining the diameter and the pipe wall thickness of the grouting pipe 2, wherein the pile foundation parameters comprise: here, the pile foundation in the present embodiment is preferably a hollow pile foundation, and the pile foundation diameter, pile foundation length, and pile foundation wall thickness of the broken pile foundation 1 are described.
And step S12, determining the bearing depth of the broken pile foundation according to the pile foundation parameters and the soil property parameters, so as to determine the length of the grouting pipe 2 according to the bearing depth of the broken pile foundation and the length of the pile foundation, and further determining the parameters of the grouting pipe 2 to prepare the grouting pipe 2. Wherein, the soil property parameters include: the hardness of the ground on which the broken pile foundation 1 is located, the average weight of the soil in the portion where the broken pile foundation is buried, and the like.
Specifically, the preset parameter formula in this embodiment is D 2 ＝D 1 -5d 1 +0.063L 1 ；d 2 ＝(0.1～0.15)D 2 。L 2 Greater than or equal to L 3 +L 0 . The steps can prevent the situation that the prepared grouting pipe 2 is displaced or deformed to cause cracks or damages during the grouting process or after the broken pile foundation 1 is repaired, prevent the situation that the grouting pipe 2 is displaced or deformed to cause cracks or damages during the use, and enable the bearing capacity of the broken pile foundation 1 to reach the bearing capacity of the broken pile foundation 1 during the design after the grouting repair is performed through the grouting pipe 2.
Wherein L is 0 For the distance of the top 22 of the bearing layer from the ground (wherein the bearing layer may be based on pile parameters of the broken pile 1 and corresponding soil parameters)Query or measurement or other prior public manner calculation), L 1 Is the pile foundation length, L 3 To break the length of pile foundation 1 exposed above ground, D 1 Is the diameter of the pile foundation, d1 is the wall thickness of the pile foundation, L 2 For the length of the grouting pipe 2, D 2 D is the diameter of the grouting pipe 2 2 Is the wall thickness of the grouting pipe 2.
Further preferably, the step S30 includes the steps of:
step 301, filling repair slurry in a gap between the grouting pipe 2 and the broken pile foundation 1 until the top 22 of the grouting pipe 2 is covered, and stopping filling;
step S302, after the repair slurry is kept stand for a preset forming time, judging whether the single pile bearing capacity of the repair slurry reaches a preset standard, wherein the forming time is at least two days;
and step 303, if yes, judging that the grouting pipe 2 and the broken pile foundation 1 are integrally formed, otherwise, judging whether the single pile bearing capacity of the grouting pipe reaches a preset standard again after a set time interval. Wherein the interval is set for 1 to 2 days. The preset standard is various index parameters such as bearing capacity and the like of the broken pile foundation during design. The method for judging the bearing capacity of the single pile of the broken pile foundation 1 with the repair slurry and the grouting pipe 2 can specifically refer to the technical specification of foundation test detection of water transport engineering (JTS 237-2017), and damage test can be carried out on the part of the grouting pipe 2 or the broken pile foundation so as to obtain the corresponding bearing capacity of the single pile and check.
Further preferably, the method further comprises the following steps before step S20:
step S13, arranging a plurality of limiting parts 21 on the inner wall of the grouting pipe 2 at equal intervals along the axial direction, wherein the limiting parts 21 comprise: a metal block 21a connected with the inner wall of the grouting pipe 2 and used for clamping the broken pile foundation 1 and/or an elastomer 21b connected with the inner wall of the grouting pipe 2.
In addition, it is worth mentioning that the high-performance quick-setting type underwater grouting material in the embodiment can preferably adopt slurry which meets the characteristics of high fluidity, micro-expansibility, high strength, early setting and the like, has long working time and good water dispersion resistance, and is favorable for bonding between the steel casing and the broken pile foundation. The initial setting time of the high-performance quick-setting type underwater grouting material is less than or equal to 30min, the final setting time is less than or equal to 90min, and the compressive strength of the high-performance quick-setting type underwater grouting material in the 1-day age can reach more than 30 MPa.
Example two
A second embodiment of the present utility model provides an apparatus for repairing broken damage of pile foundation of wharf, which is substantially the same as the above embodiment, and further preferably, the limiting portion 21 includes at least: a metal block 21a connected to the inner wall of the grouting pipe 2, and an elastic body 21b connected to the inner wall of the grouting pipe 2.
Through the cooperation of metal piece 21a and elastomer 21b, can be in the installation of being convenient for, finely tune the clearance between grout pipe 2 and the fracture pile foundation 1 with the help of elastomer 21b to make metal piece 21a can support the fracture pile foundation better.
Further preferably, the elastic body 21b is a rubber body; the metal block 21a is an iron block, and the elastic body 21b is used for being extruded by the broken pile foundation 1 to form the abutting.
Further preferably, the metal block 21a and the elastic body 21b are spaced apart from each other.
Example III
A third embodiment of the present utility model provides a pile foundation structure of a high pile wharf, which includes the apparatus for repairing broken damage of pile foundation of wharf according to any one of the above embodiments.
The above embodiments are only for illustrating the technical scheme of the present utility model, not for limiting the same, and the present utility model is described in detail with reference to the preferred embodiments only. It will be understood by those skilled in the art that various modifications and equivalent substitutions may be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model, and it is intended to cover the scope of the claims of the present utility model.
Claims (10)
1. A device for repairing a broken damage to a pier foundation, comprising: grouting pipe used for sleeving a broken pile foundation to be repaired and filled with repair slurry:
and the limiting part is arranged in the grouting pipe and used for being propped against the outer wall of the broken pile foundation.
2. The apparatus for repairing a broken damage to a pier foundation according to claim 1, wherein the limiting part comprises: and a plurality of limiting parts are arranged along the circumference of the grouting pipe.
3. The device for repairing broken damage of pile foundation of wharf of claim 1, wherein the limiting part is arranged on the circumferential side wall in the grouting pipe by welding or gluing.
4. The apparatus for repairing a broken damage to a pier foundation of claim 1, further comprising: and the limiting parts are arranged at equal intervals along the axial direction of the grouting pipe.
5. The apparatus for repairing broken damage to pile foundation of wharf of claim 1, wherein the distance between two adjacent limit portions is 1-1.5m.
6. The apparatus for repairing broken damage of pile foundation of wharf of claim 1, wherein the limit portion is a metal block or an elastic body connected to an inner wall of the grouting pipe.
7. The apparatus for repairing a broken damage to a pier foundation according to claim 1, wherein the limiting portion comprises at least: a metal block connected with the inner wall of the grouting pipe, and an elastomer connected with the inner wall of the grouting pipe; wherein the elastomer is a rubber body; the metal block is an iron block, and the elastomer is used for being extruded by the broken pile foundation to form the propping; wherein the metal block and the elastic body are arranged at intervals.
8. The apparatus for repairing broken damage to a pier foundation according to claim 7, wherein the thickness of the grouting pipe is 10% -15% of the diameter of the broken pile foundation.
9. The apparatus for repairing broken damage to a pier foundation according to claim 1, wherein the grouting pipe is a stainless steel pipe body.
10. Pile foundation structure of high stake pier, characterized by includes: an apparatus for repairing a broken damage to a pier foundation as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320153353.XU CN219280687U (en) | 2023-01-17 | 2023-01-17 | Device for repairing broken damage of pile foundation of wharf and pile foundation structure of high-pile wharf |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320153353.XU CN219280687U (en) | 2023-01-17 | 2023-01-17 | Device for repairing broken damage of pile foundation of wharf and pile foundation structure of high-pile wharf |
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| Publication Number | Publication Date |
|---|---|
| CN219280687U true CN219280687U (en) | 2023-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320153353.XU Active CN219280687U (en) | 2023-01-17 | 2023-01-17 | Device for repairing broken damage of pile foundation of wharf and pile foundation structure of high-pile wharf |
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| Country | Link |
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| CN (1) | CN219280687U (en) |
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2023
- 2023-01-17 CN CN202320153353.XU patent/CN219280687U/en active Active
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