CN106812168A - The novel method that pile foundation is repaired - Google Patents
The novel method that pile foundation is repaired Download PDFInfo
- Publication number
- CN106812168A CN106812168A CN201710135382.2A CN201710135382A CN106812168A CN 106812168 A CN106812168 A CN 106812168A CN 201710135382 A CN201710135382 A CN 201710135382A CN 106812168 A CN106812168 A CN 106812168A
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- Prior art keywords
- pile foundation
- crack
- novel method
- pile
- repaired
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D37/00—Repair of damaged foundations or foundation structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Revetment (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to the novel method that a kind of pile foundation is repaired, comprise the following steps：Crack in pile foundation to be repaired is processed, including after fracture carries out raked joint treatment, the glue that will have been configured by the grout nipple being arranged in the pile foundation is injected in the crack；Viscous composite fibre reinforcement material is pasted on pile foundation outer wall after treatment.The present invention not only constructs simple, it is easy to operate, and the security and economy of construction has been effectively ensured, and is conducive to saving construction cost, and can ensure that the durability in crack after repairing.
Description
Technical field
The present invention relates to the technical field of Wharf Engineering, the novel method that a kind of pile foundation is repaired is referred in particular to.
Background technology
Wharf Engineering is due to place's Yu Haiyang highly corrosive environments, in long piled wharf and bridge spanning the sea structure, pile foundation
Due to by long-term Chloride Attack, the more serious endurance issues of generally existing, and the reliability of pile body is directly connected to
The safety and reliability of whole harbour, it is therefore desirable to which the foundation pile to there is crack is repaired.
This year, the country occurs in that the device using glass sleeve reinforcement pier stud under water, although can realize repairing for fracture
It is multiple, but still there is following defect：Need that complicated strutting system is installed, the volume that glass fibre sleeve takes is larger to be caused
Install and transport be inconvenient, die sinking repeatedly is difficult to standardized production and supply, the sealing of the compressive seal at top and
Endurance quality is poor, especially, badly broken big to foundation pile and bearing strength consolidation of pile field high, it is difficult to which reaching construction will
Ask.In addition, above-mentioned technique is applied to used when crack is larger apart from the pile foundation distance from top, for crack at the top of pile foundation
When nearby, if still using such scheme, not only rehabilitation cost is high, and difficulty of construction is big.
The content of the invention
Therefore, the technical problems to be solved by the invention are that the method for overcoming prior art pile foundation to repair is complicated, and
Cycle is long, causes construction cost problem high so as to provide a kind of construction relatively simple, cycle is short, and can ensure construction economy
Property pile foundation repair novel method.
In order to solve the above technical problems, the novel method that the pile foundation of the invention is repaired, comprises the following steps：Step
S1：Crack in pile foundation to be repaired is processed, including after fracture carries out raked joint treatment, by being arranged in the pile foundation
The glue that will configure of grout nipple inject in the crack；Step S2：Viscous composite fibre is pasted on pile foundation outer wall after treatment
Reinforcement material.
In one embodiment of the invention, when fracture carries out raked joint treatment, including the former material in the pile foundation is divested
Material clad, and concrete surface is polishing to new concrete face, it is last to wipe clear surface along seam scope long.
In one embodiment of the invention, the glue that will have been configured by the grout nipple being arranged in the pile foundation is injected
The method in the crack is：The grout nipple is arranged on grouting base, and the grouting base is pasted onto crack table along seam
Face.
In one embodiment of the invention, before the grouting base is pasted onto fracture faces along seam, the mediation grouting
The adhesive glue of base, and the adhesive glue after mediation is applied to around the bottom surface of the grouting base.
In one embodiment of the invention, it is right before the glue that will have been configured by the grout nipple injects the crack
The crack is closed, and the crack after closing is detected, if not insertion inside crack, will be split described in glue injection
In seam, fracture is otherwise needed to carry out mending envelope treatment.
In one embodiment of the invention, it is to the method that the crack after closing is detected：The crack is carried out
Pour water, if thering is water to overflow in injected hole in the pile foundation, then it is assumed that crack internal run-through, otherwise it is assumed that not passed through inside crack
It is logical.
In one embodiment of the invention, when pasting viscous composite fibre reinforcement material on the pile foundation outer wall after treatment, first
The concrete surface of the pile foundation is polishing to new concrete face；Secondly the epoxy resin that uniform application is prepared in fiber cloth；Then will
The fiber cloth is pasted onto on new concrete face；The last wrap film on new concrete face.
In one embodiment of the invention, after the completion of the step S2, the pile cover above the pile foundation and pile foundation connects
After connecing the flexible caulking material of place's smearing, then the junction that composite fibre reinforcement material sector is pasted onto the pile foundation and pile cover.
In one embodiment of the invention, the composite fibre reinforcement material sector is pasted onto the pile foundation and connects with pile cover
The method at the place of connecing is：Many flitches are vertically fixed in pile foundation first with iron wire, then paste multiple in pile cover top sector
Condensating fiber reinforcement material, finally carries out skewed horizontal load using flitch.
In one embodiment of the invention, when smearing flexible caulking material, the flexible caulking material is applied to week
Edge crack top simultaneously forms del.
Above-mentioned technical proposal of the invention has advantages below compared to existing technology：
The novel method that pile foundation of the present invention is repaired, the covered composite yarn fiber reinforcing material outside pile foundation, then described
The flexible waterstop sealing glue of a circle is smeared at stake top and pile cover faying face, then stake top and pile cover are pasted onto with composite fibre reinforcement material
Upper formation flexible adhesive sealant and the bilayer sealing closing of composite fibre reinforcement material, so that it is guaranteed that the crack after repairing is in validity period
Durability.
Brief description of the drawings
In order that present disclosure is more likely to be clearly understood, below according to specific embodiment of the invention and combine
Accompanying drawing, the present invention is further detailed explanation, wherein
Fig. 1 is the novel method flow chart that pile foundation of the present invention is repaired.
Specific embodiment
As shown in figure 1, the present embodiment provides the novel method that a kind of pile foundation is repaired, comprise the following steps：Step S1：Treat
After the crack repaired in pile foundation is processed, including fracture carries out raked joint treatment, by the grouting being arranged in the pile foundation
The glue that mouth will have been configured is injected in the crack；Step S2：Viscous composite fibre is pasted on pile foundation outer wall after treatment and reinforces material
Material.
Above-mentioned is core technology scheme of the invention, the novel method that pile foundation of the present invention is repaired, in the step S1,
Crack in pile foundation to be repaired is processed, including after fracture carries out raked joint treatment, by being arranged in the pile foundation
The glue that grout nipple will have been configured is injected in the crack, makes to be full of glue in crack, is entered using chemical grouting technology fracture
Row repairing treatment, for crack in pile foundation near top, not only constructs simple, it is easy to operate, and construction has been effectively ensured
Security and economy, be conducive to save construction cost；Paste viscous multiple in the step S2, on pile foundation outer wall after treatment
Condensating fiber reinforcement material so that it is advantageously ensured that repairing after crack validity period durability.
In the step S1, when fracture carries out raked joint treatment, including the raw material clad in the pile foundation is divested, and
Concrete surface is polishing to new concrete face, it is last to wipe clear surface along seam scope long.Specifically, with hammer, chisel and angle grinder by the stake
Bare glass steel in base reinforcing scope is divested, and concrete surface is polishing into new concrete face, then along works such as the seam interior hairbrush of scope long
Tool wipes surface, fracture faces is kept cleaning.
In order to the glue that will have been configured is injected in the crack by the grout nipple, the grout nipple is arranged at grouting
On base, and the grouting base is pasted onto fracture faces along seam.Specifically, according to the width in crack, encapsulating base is determined
Spacing and position, set the grout nipple, and carry out mark at fracture tip, crack infall and crack place wider；Mediation institute
The adhesive glue of grouting base is stated, and the adhesive glue after mediation is applied to around the bottom surface of the grouting base；Finally by institute
Stating grouting base and be pasted onto fracture faces along seam by labeling position, and suitably firmly push the grouting base makes bottom adhesive glue
Part is overflowed, and encases the grouting base edge, so as to realize being fixed on the grout nipple in the pile foundation.
In addition, the glue that will have been configured by the grout nipple is injected before the crack, it is necessary to be sealed to the crack
Close, in case crack arrest seam is mutually communicated and gas leakage or leak adhesive, therefore also need to detect the crack after closing, if in crack
Portion's not insertion, then inject in the crack glue, otherwise needs fracture to carry out mending envelope treatment.Specifically, after to closing
The method that crack is detected is：The crack is poured water, if thering is water to overflow in injected hole in the pile foundation, then it is assumed that
Crack internal run-through, otherwise it is assumed that not insertion inside crack.Deform as one kind, when fracture is detected, it is also possible to split on edge
Seam brushes one layer of suds, and compressed air is passed through from the grout nipple, then checks the sealing effectiveness in crack.
For the effect for controlling the amount of slip casting to ensure reparation crack, the slurries that will have been configured need to calculate in advance, and
, then be attached to the low-pressure injection container on the grout nipple by injection Special low-voltage perfusion container, is applied to press with rubber band
Power, observes glue injection rate, preceding after pressurization to observe once and keep a record, if the glue in the low-pressure injection container has been noted immediately
Supplement glue simultaneously judges whether whether there is any discrepancy with grouting quantity is precalculated, and the low-pressure injection container is removed in slip casting after terminating,
Record final injecting glue amount.
When pasting viscous composite fibre reinforcement material on the pile foundation outer wall after treatment, the concrete surface of the pile foundation is polishing to first
New concrete face；Secondly the epoxy resin that uniform application is prepared in fiber cloth；Then the fiber cloth is pasted onto on new concrete face；
The last wrap film on new concrete face.Specifically, the pile foundation is processed first：Using hammer, chisel and angle grinder by institute
State the fiberglass in the range of pile foundation stickup to divest, and concrete surface is polishing to new concrete face, asphalt mixtures modified by epoxy resin is used to uneven position
Fat is repaired, and makes the pile foundation surface without wedge angle and thrust；Secondly special epoxy resin and wetting fibre cloth are configured：In ring
Blending epoxy component A and component B in proportion at a temperature of border, and stirred with low-speed machinery, fiber is cut according to drawing size
Cloth, and the fiber cloth epoxy resin that will cut is resin dedicated uniformly applies wet；Then composite reinforcing layer is constructed：To treat
One layer of resin for mixing of body structure surface brushing of reinforcing does bottom, within the time of regulation, by drenched fiber cloth entirely
It is attached on new concrete surface, broadwise splicing between fiber cloth, the lap position of principal fiber needs interlaced arrangement when multilayer is pasted,
Must not be overlapped at one, the bubble in resin must be discharged before hardening of resin to be checked to composite reinforcing layer（With scraping
Plate is struck off along primary fibre direction, and the bubble in resin is driven out of）, each layer of fiber cloth must be tight with preceding layer or basic unit
Close attachment；Finally, sticking film prevents tidewater from washing away so as to play safeguard measure：Composite fibre layer in the pile foundation has been pasted
Cheng Hou, due to by tidal level time effects, while colloid is not fully cured, if being washed away by tidewater, the composite fibre that can be pasted
Layer is washed out, therefore after the completion of composite fibre layer is pasted at the scene, need to be with fully wrapped around by its with film, and outside is entered with adhesive tape
Row is fixed, it is ensured that composite fibre in the curing process will not be by seawater scouring.
In order to ensure repairing effect, after the completion of the step S2, can at pile cover the fan-shaped fiber reinforced material of covered composite yarn
Material.Specifically, after flexible caulking material is smeared in the pile cover junction above the pile foundation and pile foundation, then composite fibre is reinforced
Material sector is pasted onto the junction of the pile foundation and pile cover.Wherein, flexible caulking material system is applied to periphery fissure top and is formed
Del, and flexible caulking material must cling it is closely knit, so as to ensure that flexible caulking material is full of whole crack, it is ensured that its is close
Feng Xing；In addition, flexible caulking material and concrete binding site sanding machine first should be removed into the impurity such as the floating dust on concrete surface before construction,
Until exposing new concrete face, then rinsed well with water, then smeared.The composite fibre reinforcement material sector is pasted onto institute
State pile foundation is with the method for pile cover junction：Many flitches are vertically fixed in pile foundation first with iron wire, then in pile cover
Top sector pastes composite fibre reinforcement material, is compressed using film and plank, finally carries out skewed horizontal load using flitch.
To sum up, technical scheme of the present invention has advantages below：
1. the novel method that pile foundation of the present invention is repaired, in the step S1, is processed the crack in pile foundation to be repaired,
After carrying out raked joint treatment including fracture, by being split described in the glue injection that the grout nipple being arranged in the pile foundation will have been configured
In seam, make to be full of glue in crack, repairing treatment is carried out using chemical grouting technology fracture, it is attached at the top of pile foundation for crack
When near, not only construct simple, it is easy to operate, and the security and economy of construction has been effectively ensured, be conducive to saving to apply
Work cost；Viscous composite fibre reinforcement material is pasted in the step S2, on pile foundation outer wall after treatment, so as to it is advantageously ensured that repair
The durability of crack after benefit in validity period.
2. the novel method that pile foundation of the present invention is repaired, in order to ensure repairing effect, after the completion of the step S2, in institute
After stating the flexible caulking material of pile cover junction smearing above pile foundation and pile foundation, then composite fibre reinforcement material sector is pasted onto
The junction of the pile foundation and pile cover.Wherein, flexible caulking material system is applied to periphery fissure top and forms del, and flexible
Caulking material must cling it is closely knit so that ensure flexible caulking material be full of whole crack, it is ensured that sealing.
Claims (10)
1. the novel method that a kind of pile foundation is repaired, it is characterised in that comprise the following steps：
Step S1：Crack in pile foundation to be repaired is processed, including after fracture carries out raked joint treatment, by being arranged on
The glue that the grout nipple in pile foundation will configure is stated to inject in the crack；
Step S2：Viscous composite fibre reinforcement material is pasted on pile foundation outer wall after treatment.
2. the novel method that pile foundation is repaired according to claim 1, it is characterised in that：When fracture carries out raked joint treatment, bag
The raw material clad divested in the pile foundation is included, and concrete surface is polishing to new concrete face, it is last to wipe clear surface along seam scope long.
3. the novel method that pile foundation is repaired according to claim 1, it is characterised in that：By the filling being arranged in the pile foundation
The method in the glue injection crack that slurry mouth will configure is：The grout nipple is arranged on grouting base, and the filling
Slurry base is pasted onto fracture faces along seam.
4. the novel method that pile foundation is repaired according to claim 3, it is characterised in that：The grouting base is pasted onto along seam and splits
Before seam surface, the adhesive glue of the mediation grouting base, and the adhesive glue after mediation is applied to the bottom of the grouting base
Around face.
5. the novel method that pile foundation is repaired according to claim 1, it is characterised in that：To be configured by the grout nipple
Before glue injects the crack, the crack is closed, and the crack after closing is detected, if not passed through inside crack
It is logical, then glue is injected in the crack, otherwise need fracture to carry out mending envelope treatment.
6. the novel method that pile foundation is repaired according to claim 4, it is characterised in that：Crack after closing is detected
Method is：The crack is poured water, if thering is water to overflow in injected hole in the pile foundation, then it is assumed that crack internal run-through,
Otherwise it is assumed that not insertion inside crack.
7. the novel method that pile foundation is repaired according to claim 1, it is characterised in that：Paste viscous multiple on pile foundation outer wall after treatment
During condensating fiber reinforcement material, the concrete surface of the pile foundation is polishing to new concrete face first；Secondly uniform application is matched somebody with somebody in fiber cloth
The epoxy resin for making；Then the fiber cloth is pasted onto on new concrete face；The last wrap film on new concrete face.
8. the novel method that pile foundation is repaired according to claim 1, it is characterised in that：After the completion of the step S2, described
After flexible caulking material is smeared in pile cover junction above pile foundation and pile foundation, then composite fibre reinforcement material sector is pasted onto institute
State the junction of pile foundation and pile cover.
9. the novel method that pile foundation is repaired according to claim 8, it is characterised in that：The composite fibre reinforcement material is fan-shaped
Be pasted onto the pile foundation is with the method for pile cover junction：Many flitches are vertically fixed in pile foundation first with iron wire, so
Composite fibre reinforcement material is pasted in pile cover top sector afterwards, finally skewed horizontal load is carried out using flitch.
10. the novel method that pile foundation is repaired according to claim 8, it is characterised in that：When smearing flexible caulking material, by institute
Flexible caulking material is stated to be applied to all edge crack tops and form del.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710135382.2A CN106812168A (en) | 2017-03-08 | 2017-03-08 | The novel method that pile foundation is repaired |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710135382.2A CN106812168A (en) | 2017-03-08 | 2017-03-08 | The novel method that pile foundation is repaired |
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| CN106812168A true CN106812168A (en) | 2017-06-09 |
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ID=59116251
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| CN201710135382.2A Pending CN106812168A (en) | 2017-03-08 | 2017-03-08 | The novel method that pile foundation is repaired |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110144896A (en) * | 2019-05-21 | 2019-08-20 | 湖南宏禹工程集团有限公司 | Concrete defect leak quick blocking restorative procedure in a kind of underground space engineering |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110144896A (en) * | 2019-05-21 | 2019-08-20 | 湖南宏禹工程集团有限公司 | Concrete defect leak quick blocking restorative procedure in a kind of underground space engineering |
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Application publication date: 20170609 |