CN112921837A - Concrete repairing method for bridge pier body - Google Patents
Concrete repairing method for bridge pier body Download PDFInfo
- Publication number
- CN112921837A CN112921837A CN202110419283.3A CN202110419283A CN112921837A CN 112921837 A CN112921837 A CN 112921837A CN 202110419283 A CN202110419283 A CN 202110419283A CN 112921837 A CN112921837 A CN 112921837A
- Authority
- CN
- China
- Prior art keywords
- repairing method
- concrete
- bridge
- bridge pier
- concrete repairing
- Prior art date
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000010276 construction Methods 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 239000002344 surface layer Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000009415 formwork Methods 0.000 claims description 22
- 239000011440 grout Substances 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 8
- 238000005187 foaming Methods 0.000 claims description 7
- 238000005553 drilling Methods 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 3
- 238000004381 surface treatment Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 13
- 230000003631 expected effect Effects 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 10
- 239000002002 slurry Substances 0.000 description 6
- 238000007569 slipcasting Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a concrete repairing method of a bridge pier body, which is used for solving the problems that the construction process is not clear and the repairing effect cannot reach the expected effect in the construction process, and comprises the following steps: selecting a bridge pier body range with a repairing length, detecting bridge piers in the repairing range by using a detection radar or an ultrasonic detection device, and determining the depth, the extension range and the shape of a damaged position so as to determine a material numerical value required by repairing; when the damage condition inside the bridge pier is detected, the attached impurities on the surface layer need to be removed; selecting a central point position and selecting a connecting fixed point position; the center point is used as an original point required by calculation, the concrete repairing method of the bridge pier body is clear in construction flow, construction steps are standardized, repairing efficiency and quality are improved, the operation process is clear, and the method has a good application prospect.
Description
Technical Field
The invention relates to the technical field of bridge pier body repairing methods, in particular to a concrete repairing method of a bridge pier body.
Background
With the continuous and powerful foundation engineering in China, the use mileage of highway bridges is continuously increased, and bridge type roads such as railways, express ways, viaducts and the like are widely used, after the bridge type roads are used for a period of time, due to the vibration of a bridge deck, the scouring of water, artificial damage and the like, the bridge pier bodies crack or flake off after a period of time, so that the bridge pier bodies are required to be continuously checked in the service life of the bridge, the bridge pier bodies with problems are repaired, the safety of the bridge is ensured, but in the actual operation process, due to the lack of corresponding technology accumulation, in the repair construction process, some gaps of the bridge pier bodies are only filled, but the damaged parts inside are still in the state to be repaired, and certain repair defects exist, so a concrete repair method for the bridge pier bodies is required to be provided to solve the problems, such as: the construction process is not clear, the operation mode is not standard, and the repairing effect can not reach the expected effect.
Disclosure of Invention
In view of the problems in the prior art, the invention discloses a concrete repair method for a bridge pier body, which is used for solving the problems that the construction process is not clear and the repair effect cannot reach the expected effect in the construction process, and adopts the technical scheme that the concrete repair method for the bridge pier body comprises the following steps:
a) selecting a bridge pier body range with a repairing length, detecting bridge piers in the repairing range by using a detection radar or an ultrasonic detection device, and determining the depth, the extension range and the shape of a damaged position so as to determine a material numerical value required by repairing; when the damage condition inside the bridge pier is detected, the attached impurities on the surface layer need to be removed;
b) selecting a central point position and selecting a connecting fixed point position; the central point is used as an original point required by calculation, is used for measuring the crack depth and calculating the position of a connecting fixed point, and determines whether the whole bridge pier body deforms;
c) performing surface treatment and drilling around a selected connection point fixing point on the bridge pier body, removing a loose surface layer, drilling, and performing formwork support on the outer side of the bridge pier body; the depth of the surface rotating hole can be directly communicated with the inside of the gap or the inside of the cavity, so that the subsequent concrete slurry can reach a target position, the pouring effect is ensured, and the concrete slurry with fluidity can be used after the formwork support is arranged, so that the repairing effect is better;
d) adjusting the positions and the height values of the supporting mold and the central point, measuring the numerical value of the supporting mold, and collecting accurate measurement data; calculating the position of the formwork so as to ensure that the appearance of the poured bridge is within a reasonable size with the outer surface of the original bridge pier body, and if the difference between the outer sides of the bridge pier body and the original bridge pier body exceeds ten centimeters, re-formwork operation is required, so that the repaired bridge pier body is reasonable in size;
e) measuring and calculating according to the measurement data, checking and calculating the difference between each geometric parameter and the standard value, and determining whether the geometric parameters are within a reasonable variation range; the deviation generated by formwork support can be reduced through measurement and calculation, the opportunity of timely adjustment can be obtained, and the practicability is good;
f) grouting the formwork; pouring is carried out from one side during grouting, so that the slurry can flow at a constant speed;
g) removing the mold;
h) detecting by using a radar detection or ultrasonic device to detect the construction quality; and (5) checking again to ensure that the gap inside the bridge pier body after construction is completely filled, otherwise, performing repair operation again.
In the step, pier bodies within twenty centimeters outward of the selected range of the bridge pier body are detected simultaneously during detection, and the accuracy and the completeness of the area needing to be repaired in the selected region are determined. The edge position is detected, whether an internal gap of connectivity exists or not can be found in time, and the integrity of a repairing area is guaranteed.
As a preferred technical solution of the present invention, the center point is calculated to be unable to satisfy the requirement of connecting the fixed points, and the step b) is performed again, and the center point is selected again. When the position of the central point is in the middle of the gap or is easy to loosen and strip, the position of the central point needs to be replaced, the position is ensured not to be changed in the construction process, and the central point can also be positioned at the edge part of the construction area.
As a preferred technical scheme of the invention, the loose part on the surface layer of the bridge pier body needs to be removed and the hole is drilled, and the depth of the hole extends to the center of the repaired crack or the inner wall of the gap. In the process of opening the holes, at least two straight-through holes are formed in one cavity or crack, so that gas can be discharged in the pouring process, and gas is prevented from being accumulated inside the cavity or crack.
As a preferable technical scheme of the invention, a grouting opening is reserved at the upper end when the formwork is installed. When grouting, grout is injected from one side in sequence, so that the grout can flow into each gap, and the internal gas discharge channel is smooth.
In a preferred embodiment of the present invention, the raw material used for grouting repair is one of concrete grout or foaming concrete grout. The liquid can the concrete thick liquids can flow to the depths in gap, can adopt foaming type concrete thick liquids or foaming type resin thick liquids to fill simultaneously, guarantees the normal construction demand under the complex condition.
As a preferred technical scheme of the invention, a plurality of channels can be arranged at equal intervals at the grouting opening reserved for the formwork support. The quantity of slip casting mouth can the equidistance set up a plurality ofly, can reduce the time that the slip casting consumes, forms one side simultaneously and flows into the thick liquid, and the opposite side is in time with gas outgoing's flow process, promotes and pours the effect.
As a preferable technical scheme of the invention, the grouting opening is plugged at an interval of twenty minutes after the grouting operation is finished. The evaporation of water can be reduced after plugging, and meanwhile, certain pressure is formed in the inner part, so that the effect after solidification is ensured.
The invention has the beneficial effects that: according to the method, through setting the detailed repairing flow operation, the constructor can realize normal repairing of the bridge pier body according to the set operation steps, the phenomenon that only the appearance can be repaired due to inconvenience in operation of the constructor is reduced, the effect after construction is detected again after the flow operation is finished is detected, and the repairing effect is improved to the maximum extent.
Drawings
FIG. 1 is a schematic flow diagram of the present invention;
Detailed Description
Example 1
As shown in fig. 1, the invention discloses a concrete repair method for a bridge pier body, which adopts the technical scheme that the concrete repair method for the bridge pier body comprises the following steps:
a) selecting a bridge pier body range with a repairing length, detecting bridge piers in the repairing range by using a detection radar or an ultrasonic detection device, and determining the depth, the extension range and the shape of a damaged position so as to determine a material numerical value required by repairing; when the damage condition inside the bridge pier is detected, the attached impurities on the surface layer need to be removed;
b) selecting a central point position and selecting a connecting fixed point position; the central point is used as an original point required by calculation, is used for measuring the crack depth and calculating the position of a connecting fixed point, and determines whether the whole bridge pier body deforms;
c) performing surface treatment and drilling around a selected connection point fixing point on the bridge pier body, removing a loose surface layer, drilling, and performing formwork support on the outer side of the bridge pier body; the depth of the surface rotating hole can be directly communicated with the inside of the gap or the inside of the cavity, so that the subsequent concrete slurry can reach a target position, the pouring effect is ensured, and the concrete slurry with fluidity can be used after the formwork support is arranged, so that the repairing effect is better;
d) adjusting the positions and the height values of the supporting mold and the central point, measuring the numerical value of the supporting mold, and collecting accurate measurement data; calculating the position of the formwork so as to ensure that the appearance of the poured bridge is within a reasonable size with the outer surface of the original bridge pier body, and if the difference between the outer sides of the bridge pier body and the original bridge pier body exceeds ten centimeters, re-formwork operation is required, so that the repaired bridge pier body is reasonable in size;
e) measuring and calculating according to the measurement data, checking and calculating the difference between each geometric parameter and the standard value, and determining whether the geometric parameters are within a reasonable variation range; the deviation generated by formwork support can be reduced through measurement and calculation, the opportunity of timely adjustment can be obtained, and the practicability is good;
f) grouting the formwork; pouring is carried out from one side during grouting, so that the slurry can flow at a constant speed;
g) removing the mold; removing the support die and exposing the repaired surface;
h) detecting by using a radar detection or ultrasonic device to detect the construction quality; and (5) checking again to ensure that the gap inside the bridge pier body after construction is completely filled, otherwise, performing repair operation again.
As a preferred technical scheme of the invention, in the steps, pier bodies within twenty centimeters outward of the selected range edge of the bridge pier body are detected simultaneously during detection, and the accuracy and the integrity of the area needing to be repaired in the selected region are determined. The edge position is detected, whether an internal gap of connectivity exists or not can be found in time, and the integrity of a repairing area is guaranteed.
As a preferred technical solution of the present invention, when the central point is calculated to be unable to satisfy the requirement of connecting the fixed points, step b) needs to be performed again, and the central point is selected again. When the position of the central point is in the middle of the gap or is easy to loosen and strip, the position of the central point needs to be replaced, the position is ensured not to be changed in the construction process, and the central point can also be positioned at the edge part of the construction area.
As a preferred technical scheme of the invention, the loose part on the surface layer of the bridge pier body is required to be removed at the connection point fixing point, and the hole is punched, wherein the depth of the hole extends to the center of the repaired crack or the inner wall of the gap. In the process of opening the holes, at least two straight-through holes are formed in one cavity or crack, so that gas can be discharged in the pouring process, and gas is prevented from being accumulated inside the cavity or crack.
As a preferred technical scheme of the invention, a grouting opening is reserved at the upper end when the formwork is installed. When grouting, grout is injected from one side in sequence, so that the grout can flow into each gap, and the internal gas discharge channel is smooth.
As a preferable technical scheme of the invention, the raw material used for grouting repair is one of concrete grout or foaming type concrete grout. The liquid can the concrete thick liquids can flow to the depths in gap, can adopt foaming type concrete thick liquids or foaming type resin thick liquids to fill simultaneously, guarantees the normal construction demand under the complex condition.
As a preferred technical scheme of the invention, a plurality of channels can be arranged at equal intervals at the grouting opening reserved for the formwork support. The quantity of slip casting mouth can the equidistance set up a plurality ofly, can reduce the time that the slip casting consumes, forms one side simultaneously and flows into the thick liquid, and the opposite side is in time with gas outgoing's flow process, promotes and pours the effect.
As a preferred technical scheme of the invention, after the grouting operation is finished, the grouting opening is plugged at intervals of twenty minutes. The evaporation of water can be reduced after plugging, and meanwhile, certain pressure is formed in the inner part, so that the effect after solidification is ensured.
The method is sequentially carried out according to steps in the operation process, wherein the data detection of the bridge is important, the construction is sequentially carried out, the pouring thickness is controlled within a reasonable range by the formwork support, the repair of the pier body of the common bridge is realized, and the normal use of the bridge is ensured.
Components not described in detail herein are prior art.
Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes and modifications without inventive changes may be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (8)
1. A concrete repairing method for a bridge pier body comprises the following steps:
a) selecting a bridge pier body range with a repairing length, detecting bridge piers in the repairing range by using a detection radar or an ultrasonic detection device, and determining the depth, the extension range and the shape of a damaged position so as to determine a material numerical value required by repairing;
b) selecting a central point position and selecting a connecting fixed point position;
c) performing surface treatment and drilling around a selected connection point fixing point on the bridge pier body, removing a loose surface layer, drilling, and performing formwork support on the outer side of the bridge pier body;
d) adjusting the positions and the height values of the supporting mold and the central point, measuring the numerical value of the supporting mold, and collecting accurate measurement data;
e) measuring and calculating according to the measurement data, checking and calculating the difference between each geometric parameter and the standard value, and determining whether the geometric parameters are within a reasonable variation range;
f) grouting the formwork;
g) removing the mold;
h) and detecting by using a radar detection device or an ultrasonic device to detect the construction quality.
2. The concrete repairing method for the pier shaft of the bridge according to claim 1, wherein the concrete repairing method comprises the following steps: in the step, pier bodies within twenty centimeters outwards of the selected range edge of the bridge pier body are detected simultaneously during detection, and the accuracy and the integrity of the area needing to be repaired in the selected region are determined.
3. The concrete repairing method for the pier shaft of the bridge according to claim 1, wherein the concrete repairing method comprises the following steps: and c) when the central point cannot meet the requirement of connecting the fixed points through calculation, the step b) needs to be carried out again, and the central point is selected again.
4. The concrete repairing method for the pier shaft of the bridge according to claim 1, wherein the concrete repairing method comprises the following steps: the connecting point fixed point needs to clear away the not hard up position in bridge pier shaft top layer to punch, the degree of depth in hole extends the inner wall department of repairing crack center or breach.
5. The concrete repairing method for the pier shaft of the bridge according to claim 1, wherein the concrete repairing method comprises the following steps: and a grouting opening is reserved at the upper end of the formwork when the formwork is installed.
6. The concrete repairing method for the pier shaft of the bridge according to claim 1, wherein the concrete repairing method comprises the following steps: the raw material used for grouting repair is one of concrete grout or foaming type concrete grout.
7. The concrete repairing method for the pier shaft of the bridge according to claim 1, wherein the concrete repairing method comprises the following steps: and a plurality of channels can be arranged at equal intervals at the grouting opening reserved for the formwork.
8. The concrete repairing method for the pier shaft of the bridge according to claim 1, wherein the concrete repairing method comprises the following steps: and after the grouting operation is finished, plugging the grouting opening at an interval of twenty minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110419283.3A CN112921837A (en) | 2021-04-19 | 2021-04-19 | Concrete repairing method for bridge pier body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110419283.3A CN112921837A (en) | 2021-04-19 | 2021-04-19 | Concrete repairing method for bridge pier body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112921837A true CN112921837A (en) | 2021-06-08 |
Family
ID=76174507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110419283.3A Pending CN112921837A (en) | 2021-04-19 | 2021-04-19 | Concrete repairing method for bridge pier body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112921837A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200253526Y1 (en) * | 2001-04-30 | 2001-11-16 | 남궁락 | A repair struture of bridge pier mould construction |
| CN104675141A (en) * | 2015-03-19 | 2015-06-03 | 东南大学 | FRP (Fiber Reinforced Plastic) pipe confined cement based composite material reinforced pier column structure |
| CN205557277U (en) * | 2016-03-15 | 2016-09-07 | 南京理工技术转移中心有限公司 | Pavement crack disease detection system |
| CN108611982A (en) * | 2018-05-25 | 2018-10-02 | 中交第二航务工程局有限公司 | A kind of Thin-wall Hollow Pier template alignment control localization method |
| CN110426317A (en) * | 2019-07-10 | 2019-11-08 | 中交公路养护工程技术有限公司 | A kind of grouting material compactness inspection method of the underwater reinforced concrete column of sleeve |
| CN112160258A (en) * | 2020-10-30 | 2021-01-01 | 中铁四院集团工程建设有限责任公司 | Concrete repairing method for bridge pier body |
-
2021
- 2021-04-19 CN CN202110419283.3A patent/CN112921837A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200253526Y1 (en) * | 2001-04-30 | 2001-11-16 | 남궁락 | A repair struture of bridge pier mould construction |
| CN104675141A (en) * | 2015-03-19 | 2015-06-03 | 东南大学 | FRP (Fiber Reinforced Plastic) pipe confined cement based composite material reinforced pier column structure |
| CN205557277U (en) * | 2016-03-15 | 2016-09-07 | 南京理工技术转移中心有限公司 | Pavement crack disease detection system |
| CN108611982A (en) * | 2018-05-25 | 2018-10-02 | 中交第二航务工程局有限公司 | A kind of Thin-wall Hollow Pier template alignment control localization method |
| CN110426317A (en) * | 2019-07-10 | 2019-11-08 | 中交公路养护工程技术有限公司 | A kind of grouting material compactness inspection method of the underwater reinforced concrete column of sleeve |
| CN112160258A (en) * | 2020-10-30 | 2021-01-01 | 中铁四院集团工程建设有限责任公司 | Concrete repairing method for bridge pier body |
Non-Patent Citations (1)
| Title |
|---|
| 翁利青: "简述水力破除技术及自密实混凝土在桥梁混凝土表面缺陷修复中的应用", 《四川水泥》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106759354B (en) | Layered continuous pouring mode of overlong and super-thick mass concrete foundation | |
| CN106088530A (en) | Large area method for constructing terrace | |
| CN106150523B (en) | A kind of Railway Tunnel ditch cable trench integral mold plate construction | |
| CN102175382B (en) | Detecting device for detecting lateral pressure of great-mobility concrete template | |
| CN110644378A (en) | Automatic counterweight unloading adjusting system for closure segment construction and construction adjusting method thereof | |
| CN105755954A (en) | Construction technology of interchange type bare concrete anti-collision guardrails | |
| CN203658190U (en) | Horizontal abrasion-resistance apparatus for cement pavement base material | |
| CN111337175A (en) | Full-section pouring monitoring system and monitoring method | |
| CN107513916B (en) | The imitative ice and snow road precast construction method of annular | |
| CN112921837A (en) | Concrete repairing method for bridge pier body | |
| CN116122850B (en) | Grouting method for reinforcing steel ring to prevent air drum | |
| CN103088900B (en) | Prefabricated-assembled type gutter inlet and construction method thereof | |
| CN107144490A (en) | Tunnel Second Lining pours monitoring system and monitoring method | |
| CN105648870B (en) | The construction method on skid pad washboard road | |
| CN114439058A (en) | Classification early warning identification and jacking treatment process for dislocation deformation of deformation joint of pipe gallery | |
| CN113047143A (en) | Geopolymer grouting construction process and equipment for expressway restoration | |
| CN211008658U (en) | Construction structure for preventing two lining vault from being hollow at railway tunnel vault | |
| CN107063367A (en) | A kind of bend current surveying device and flow measurement method | |
| CN108374425B (en) | Bearing platform and foundation pit cushion layer construction structure and pouring method thereof | |
| JP6832047B2 (en) | Method of measuring the filling status of the steel plate concrete structure and method of constructing the steel plate concrete structure | |
| CN111827240A (en) | Reinforcing construction method for old revetment of ship lock engineering | |
| CN206784184U (en) | Heavy template support system off-load stand apparatus | |
| CN219808281U (en) | Bridge construction fills maintenance device | |
| CN209637234U (en) | A kind of concrete floor slab placement concrete thickness caliberating device | |
| CN203256890U (en) | Prefabricated assembling type gutter inlet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210608 |
|
| RJ01 | Rejection of invention patent application after publication |