CN110735388B - Protective device arranged on bridge pier and construction method thereof - Google Patents

Protective device arranged on bridge pier and construction method thereof Download PDF

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CN110735388B
CN110735388B CN201911041684.9A CN201911041684A CN110735388B CN 110735388 B CN110735388 B CN 110735388B CN 201911041684 A CN201911041684 A CN 201911041684A CN 110735388 B CN110735388 B CN 110735388B
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pier
concrete
templates
template
bridge
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CN110735388A (en
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赵鑫
宫淑娟
曹炳强
程春
杨东薇
张滑芳
董冬梅
吴燕
王春阳
高晓培
魏志峰
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    • 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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges

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Abstract

The invention belongs to the technical field of road and bridge facilities, and particularly relates to a protective device arranged on a pier and a construction method thereof. The invention provides a protective device arranged on a pier, which comprises a pier column fixedly connected with a bridge plate, wherein the lower side of the pier column is sequentially provided with a pier and a pier body, a foundation on the lower side of the pier body is fixedly arranged on a riverbed, the outer side of the pier column is provided with a plurality of solar panels electrically connected with a storage battery, the storage battery is electrically connected with an air pump provided with a controller, the air pump is hermetically connected with a plurality of air injection devices arranged on the outer side of the pier body through pipelines arranged in the pier, the pier and the pier column, and electrodes and protective plates are arranged among the air injection devices. The invention can reduce the erosion of the microorganisms and plankton in the water to the bridge pier and improve the service life of the bridge pier. The solar energy is used as energy, no pollution is generated, and the solar energy water heater is environment-friendly, more convenient and simpler to maintain and can be widely applied.

Description

Protective device arranged on bridge pier and construction method thereof
Technical Field
The invention belongs to the technical field of road and bridge facilities, and particularly relates to a protective device arranged on a pier and a construction method thereof.
Background
The bridge generally comprises an upper structure, a lower structure, a support and an auxiliary structure, wherein the upper structure is also called a bridge span structure and is a main structure for spanning obstacles; the lower structure comprises a bridge abutment, a bridge pier and a foundation; the support is a force transmission device arranged at the supporting positions of the bridge span structure and the bridge pier or the bridge abutment; the auxiliary structures refer to bridge end butt straps, tapered revetments, diversion works and the like. The pier is used for supporting the upper structure of the left span and the right span of the pier and transmitting vertical force and horizontal force through the support. At present, a plurality of piers are built in rivers, need bear flowing water pressure, and can be soaked in water for a long time, so that microorganisms and small animals such as algae and river snails in a plurality of water flows are attached to the outer sides of the piers, the piers are corroded and eroded due to the adsorption of a large number of microorganisms and attached small animals, the quality of the piers is reduced due to the long-term adsorption, and even safety problems are caused.
Disclosure of Invention
In order to solve the technical problems, the invention provides a protective device arranged on a pier and a construction method thereof.
In order to achieve the purpose, the protection device arranged on the pier comprises a pier column fixedly connected with a bridge plate, wherein a pier and a pier body are sequentially arranged on the lower side of the pier column, a foundation arranged on the lower side of the pier body is fixedly arranged on a riverbed, a plurality of solar panels electrically connected with a storage battery are arranged on the outer side of the pier column, the storage battery is electrically connected with an air pump provided with a controller, and the air pump is hermetically connected with a plurality of air injection devices arranged on the outer side of the pier body through pipelines arranged in the pier, the pier and the pier column.
Further preferred technical scheme, air jet system include with set up the intake pipe at the internal pipeline sealing connection of pier, the end of intake pipe is equipped with a plurality of regular spread's air nozzle, the lateral surface of the gas outlet orientation pier body of air nozzle.
According to a further preferable technical scheme, a mushroom-shaped shell is arranged on the outer side of the air nozzle.
In a further preferred technical scheme, an inclined plane is arranged at an air outlet of the air nozzle.
Further preferred technical scheme, the outside of the pier body is equipped with the electrode that a plurality of and battery electricity are connected, electrode and air jet system are the interval setting, the circuit setting of electrode just carries out waterproof sealing connection in the inside pipeline of pier body, pier and pier stud.
According to a further preferable technical scheme, a protection plate is arranged between the air injection devices.
According to a further preferable technical scheme, the protection plate is of a U-shaped structure and is made of hard plastics or aluminum alloy materials.
According to a further preferable technical scheme, a protection plate with a U-shaped structure is arranged between the electrode and the air injection device.
The invention also provides a construction method of the protective device arranged on the pier, which comprises the following steps: step 1, carrying out measurement lofting on the position of a pier, and determining a template position line on a side line and a middle line of the pier; measuring the elevation of the bottom surface of the pier body to determine the height of the template of the pier;
step 2, placing the template of the hollow pier which is made in advance in river water, draining water immersed in the template of the hollow pier, performing the working procedures of excavation and sinking at the same time until the template sinks to a proper hard soil layer at the lower side of a river bed, and then fixing the template of the hollow pier on the river bed of a river channel; installing template templates, hoisting and assembling by adopting a crane, constructing on a platform on a scaffold by constructors, finally performing fine adjustment, checking each template before erecting the template, manually leveling the template with small deformation, removing the template with large deformation, brushing a fresh release agent after removing floating rust on the template before adjusting the template, pasting sponge sealing strips on the joints of two adjacent templates, preventing the sealing strips from being exposed out of the inner sides of the templates when pasting the sealing strips, and overlapping double layers at joints to prevent exposure; when the template is reinforced, two adjacent templates and the truss are the maximum point and the weakest link of stress, and a next two adjacent templates and the truss are welded by steel bars or steel pipes, so that the vertical integral stress is uniform, and the phenomenon of bulging or folding cannot occur; step 3, arranging a mortar leveling layer, and leveling the outer side of the position of the template of the pier by using mortar according to the side line of the pier so as to enable the bottom layers of the pier templates to be on the same horizontal plane;
step 4, binding pier reinforcing steel bars, erecting a scaffold along steel pipes on the outer side of the pier, tensioning the outer side of the scaffold by using a small oil rope to ensure the overall stability of the scaffold, erecting a working platform on the scaffold, setting the distance, the position and the thickness of a concrete protective layer of the scaffold when binding pier body reinforcing steel bars, additionally arranging positioning reinforcing steel bars according to a quincunx type, arranging conical or cylindrical top cap cushion blocks at two ends of the positioning reinforcing steel bars, transversely penetrating the pier body, and tightly jacking templates on two sides;
step 5, laying pipelines of circuits and gas circuits in templates of pier bodies, piers and pier columns, binding and fixing iron wires and pier reinforcing steel bars, and sealing at the interface of each pipeline;
step 6, fixedly connecting each U-shaped protection plate 10 at the outer side position in the pier body template to ensure that the intervals between every two protection plates are the same;
step 7, pouring concrete, wherein pumping construction is adopted for pier concrete, and sand, stone, cement, water and additives in the concrete are subjected to quality inspection and meet requirements, so that the metering is accurate, and the concrete mixing time is ensured; continuously pouring concrete in a layered manner, forming at one time, wherein the layered thickness is about 3cm, and the pouring time at the layering interval does not exceed the initial setting time of the concrete determined by a test; in the concrete pouring process, in order to reduce the internal temperature of the concrete, the mold-entering temperature of the concrete is controlled within 25 ℃;
step 8, when the concrete is vibrated, an inserted vibrator is adopted, the vibration depth exceeds the depth of the contact surface of each layer, and the lower layer is guaranteed to be vibrated again before initial setting, so that the concrete has good compactness and is prevented from leaking vibration; during vibration, the vibrating rods are vertically inserted, quickly inserted and slowly discharged, the moving distance of the vibrating rods is not more than 1.5 times of the acting radius of the vibrating rods, the inserting points are uniform during vibration and advance in a row or in a staggered mode so as to avoid over vibration or leakage vibration, the vibrating time of the vibrating rods is 20-30 s, and after each vibration is finished, the vibrating rods are slowly pulled out while vibrating;
step 9, after pouring of the bridge pier concrete is finished, timely plastering, slurry collecting and curing are carried out, after initial setting of the bridge pier concrete is finished, geotextile is covered on the surface of the bridge pier for watering and curing, an integral curing cover is required to be adopted for curing after formwork removal, the curing cover is required to cover the whole bridge pier, and after the curing cover is removed, a grinding machine is used for cleaning the surface of the protection plate;
step 10, respectively installing a solar panel, a controller and an air pump on the pier stud and electrically connecting the solar panel, the controller and the air pump;
step 11, fixedly installing an air injection device and an electrode on the pier body respectively, and debugging a solar panel, a controller, an air pump, the air injection device and the electrode;
and 12, detaching the working platform.
According to a further preferable technical scheme, after the pouring of the pier is completed in the step 9, when the outside air temperature is in a winter construction condition, the whole concrete construction requires heat preservation, under the condition that the concrete mold-entering temperature is ensured, a support is erected outside the pier by adopting a steel pipe, thick canvas or thick plastic cloth is wrapped outside the pier to form a steam-cured shed, and steam curing is adopted for curing.
Compared with the prior art, the invention has the following beneficial effects:
1. the solar energy is used as energy, so that the solar energy water heater is pollution-free, environment-friendly, convenient and simple to maintain and can be widely applied.
2. The invention reduces the erosion of the microorganisms and plankton in the water to the bridge pier and prolongs the service life of the bridge pier.
Drawings
FIG. 1 is an overall structural view of embodiment 1 of the present invention;
FIG. 2 is a block diagram of the air injection unit of FIG. 1;
FIG. 3 is an overall structural view of another embodiment of example 1 of the present invention;
FIG. 4 is an overall structural view of an embodiment of the present invention in example 2;
FIG. 5 is an overall structural view of another embodiment of the present invention in example 2;
FIG. 6 is a top view of one construction of the guard of the present invention;
fig. 7 is a top view of another arrangement of the fender of the present invention.
Reference numerals
In the figure, 1 — base; 2-pier body; 3-abutment; 4-pier stud, 5-bridge plate, 6-solar panel, 7-air pump, 8-air injection device, 81-inclined plane, 82-air nozzle, 83-shell, 84-air inlet pipe, 85-, 86-nozzle; 9-electrode, 10-protective plate.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1, the protection device provided by the invention comprises a pier stud 4 fixedly connected with a bridge plate 5, wherein a pier 3 and a pier body 2 are sequentially arranged on the lower side of the pier stud 4, a foundation 1 arranged on the lower side of the pier body 2 is fixedly arranged on a riverbed, a plurality of solar panels 6 electrically connected with a storage battery are arranged on the outer side of the pier stud 4, the storage battery is electrically connected with an air pump 7 provided with a controller, and the air pump 7 is hermetically connected with a plurality of air injection devices 8 arranged on the outer side of the pier body 2 through pipelines arranged in the pier body 2, the pier 3 and the pier stud 4.
As shown in fig. 2, the air injection device 8 specifically includes an air inlet pipe 84 connected to the pipeline inside the pier body 2 in a sealed manner, an end of the air inlet pipe 84 is provided with a plurality of regularly arranged air nozzles 82, when the air pump 7 is powered on, compressed air output by the air pump 7 is ejected from the air nozzles 82, and ejected air flow and water flow are formed, the formed water flow and air flow generate impact force on the pier body 2, an air outlet of the air nozzles 82 is arranged towards the outer side surface of the pier body 2, in order to save electric quantity consumed by the air pump 7, the outer side of the air nozzles 82 is provided with a mushroom-shaped shell 83, and impact of air flow formed by the compressed air ejected from the air pump 7 on the outer side surface of the pier body 2 due to influence of the flow. In order to form an angle and circulate water flow to the outside of the pier body 2, the air outlet of the air nozzle 82 is provided with an inclined surface 81, and compressed air is ejected from the inclined surface 81.
As shown in fig. 3, in order to reduce the chance of adhesion of microorganisms and plankton in river water to the surface of the pier body 2 and reduce erosion of the pier body 2, it is more preferable that a guard plate 10 is provided between the air injection devices 8, and the guard plate 10 is a plate made of an aluminum alloy material or a hard plastic.
Example 2
The present embodiment is further improved based on the above embodiment 1, and the other structures are the same, except that: as shown in fig. 4, a plurality of electrodes 9 electrically connected with the storage battery are disposed on the outer side of the pier body 2, the electrodes 9 and the air injection device 8 are disposed at intervals, the circuit of the electrodes 9 is disposed in the pipelines inside the pier body 2, the abutment 3 and the pier column 4 and is connected in a waterproof and airtight manner, when the microorganisms and plankton in the river water are near the pier body 2, the control device starts the electrodes 9 to discharge continuously, the microorganisms and plankton in the river water are shocked by electricity and lose the capacity of attaching to the pier instantly, and the microorganisms and plankton which are shocked by the compressed air ejected from the air outlet of the air nozzle 82 in the air injection device 8 are smoothly ejected away, so as to achieve the purpose of reducing the attachment and erosion of the pier body 2.
As shown in fig. 5 to 7, a more preferable technical proposal is that a protective plate 10 is arranged between the electrode 9 and the air injection device 8 near the outer side of the pier body 2. In this embodiment, preferred structure guard plate 10 is U type structure or guard plate 10 is omega type structure, because the surface that sets up guard plate 10 is smooth, it can reduce the microorganism in the river and plankton to the adhesion chance on pier body 2 surface, reduce the erosion to pier body 2, and set the guard plate 10 of U type structure and omega type structure into, can let guard plate 10 and pier body 2's concrete combine to form a body structure, this structure is not only more firm, the installation step at pier body 2 outside guard plate 10 has also been reduced, play the effect that the mounting process is simplified.
The invention also provides a construction method of the protective device arranged on the pier, which comprises the following steps: step 1, carrying out measurement lofting on the position of a pier, and determining a template position line on a side line and a middle line of the pier; measuring the elevation of the bottom surface of the pier body to determine the height of the template of the pier;
step 2, placing the template of the hollow pier which is made in advance in river water, draining water immersed in the template of the hollow pier, performing the working procedures of excavation and sinking at the same time until the template sinks to a proper hard soil layer at the lower side of a river bed, and then fixing the template of the hollow pier on the river bed of a river channel; when the templates are installed, the templates are hoisted and assembled by adopting a 25-ton crane, constructors construct on a platform on a scaffold, fine adjustment and fine adjustment are finally carried out, before the templates are erected, each template is checked, the templates with small deformation are manually leveled, the templates with large deformation are removed from use, before the templates are adjusted and installed, floating rust on the templates needs to be removed, a fresh release agent is brushed, sponge sealing strips are adhered to the joints of two adjacent templates, the sealing strips are prevented from being exposed out of the inner sides of the templates when being adhered, and double layers are overlapped at joints to prevent exposure; when the template is reinforced, two adjacent templates and the truss are the maximum point and the weakest link of stress, and a next two adjacent templates and the truss are welded by steel bars or steel pipes, so that the vertical integral stress is uniform, and the phenomenon of bulging or folding cannot occur;
step 3, setting a mortar leveling layer, and leveling the outer side of the position of the template of the pier by using M10 mortar according to the side line of the pier so as to enable the bottom layers of the pier template to be on the same horizontal plane;
step 4, binding pier reinforcing steel bars, erecting a scaffold along steel pipes on the outer side of the pier, tensioning the outer side of the scaffold by using a small oil rope to ensure the overall stability of the scaffold, erecting a working platform on the scaffold, setting the spacing, the position and the thickness of a concrete protective layer according to a plum blossom type at a spacing of 1250px or 2500px when binding pier body reinforcing steel bars, installing conical or cylindrical top cap cushion blocks at two ends of the positioning reinforcing steel bars, transversely penetrating through the pier body, and tightly jacking templates on two sides;
step 5, laying pipelines of circuits and gas circuits in the templates of the pier body 2, the pier 3 and the pier column 4, binding and fixing the pipelines and the pier reinforcing steel bars by using iron wires, and sealing at the interface of each pipeline;
step 6, fixedly connecting each U-shaped protection plate 10 at the outer side position in the pier body 2 template, and ensuring that the interval between every two protection plates 10 is the same;
step 7, pouring concrete, wherein pumping construction is adopted for pier concrete, and sand, stone, cement, water and additives in the concrete are subjected to quality inspection and meet requirements, so that the metering is accurate, and the concrete mixing time is ensured; continuously pouring concrete in a layered manner, forming at one time, wherein the layered thickness is about 3cm, and the pouring time at the layering interval does not exceed the initial setting time of the concrete determined by a test; in the concrete pouring process, in order to reduce the internal temperature of the concrete, the mold-entering temperature of the concrete is controlled within 25 ℃;
step 8, vibrating the concrete, namely, adopting an inserted vibrator, wherein the vibrating depth exceeds the depth of a contact surface of each layer, and ensuring that the lower layer is vibrated again before initial setting, so that the concrete has good compactness and is prevented from leaking vibration; during vibration, the vibrating rods are vertically inserted, quickly inserted and slowly discharged, the moving distance of the vibrating rods is not more than 1.5 times of the action radius of the vibrating rods, the inserting points are uniform during vibration and advance in a row or in a staggered mode so as to avoid over vibration or vibration leakage, the vibrating time of the vibrating rods is about 20-30 s, and after each vibration is finished, the vibrating rods are slowly pulled out while vibrating;
step 9, after pouring of the bridge pier concrete is finished, timely plastering, slurry collecting and curing are carried out, after initial setting of the bridge pier concrete is finished, geotextile is covered on the surface of the bridge pier concrete for watering and curing, an integral curing cover is required to be adopted for curing after formwork removal, the curing cover covers all bridge piers, and after the curing cover is removed, a grinding machine is used for cleaning the surface of the protection plate 10; according to a further preferable technical scheme, after the pouring of the pier is completed in the step 9, when the outside air temperature is in a winter construction condition, the concrete construction requires whole-course heat preservation, under the condition that the temperature of concrete entering a mold is ensured, a support is erected outside the pier by adopting a steel pipe, thick canvas or thick plastic cloth is wrapped outside the pier to form a steam curing shed, and steam curing is adopted for curing;
step 10, respectively installing a solar panel 6, a controller and an air pump 7 on the pier stud 4 and electrically connecting;
step 11, fixedly installing an air injection device 8 and an electrode 9 on the pier body 2 respectively, and debugging a solar panel 6, a controller, an air pump 7, the air injection device 8 and the electrode 9;
and 12, detaching the working platform.
The preferred embodiments and examples of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the embodiments and examples described above, and various changes can be made within the knowledge of those skilled in the art without departing from the concept of the present invention.

Claims (8)

1. The utility model provides a protector of setting on pier, includes pier stud (4) with bridge plate (5) fixed connection, the downside of pier stud (4) is equipped with pier (3) and pier body (2) according to the order, the basis (1) of pier body (2) downside is fixed to be set up on the riverbed, its characterized in that, be equipped with a plurality of solar panel (6) with the battery electricity is connected on the outside of pier stud (4), the battery is connected with the air pump (7) electricity that is equipped with the controller, air pump (7) through the pipeline that sets up in pier body (2), pier (3) and pier stud (4) with set up a plurality of air jet system (8) sealing connection in the pier body (2) outside, air jet system (8) include with set up in the inside pipeline sealing connection's of pier body (2) intake pipe (84), the end of intake pipe (84) is equipped with a plurality of regular spread's air nozzle (82), the air outlet of the air nozzle (82) faces the outer side surface of the pier body (2);
the outside of the pier body (2) is equipped with electrode (9) that a plurality of and battery electricity are connected, electrode (9) and air jet system (8) set up for the interval, the circuit setting of electrode (9) just carries out waterproof sealing connection in the inside pipeline of pier body (2), pier (3) and pier stud (4).
2. The guard device for a bridge pier according to claim 1, wherein the air nozzle (82) is provided at an outer side thereof with a mushroom-shaped housing (83).
3. The guard device for a bridge pier according to claim 1, wherein the air outlet of the air nozzle (82) is provided with a slope (81).
4. The guard device for a pier as claimed in claim 1, wherein guard plates (10) are provided between the air injection devices (8).
5. The guard device for an abutment structure according to claim 4, wherein the fender (10) has a U-shaped structure and is made of a hard plastic or aluminum alloy material.
6. The guard device for a pier set forth in claim 1, wherein a U-shaped guard plate (10) is provided between the electrode (9) and the air injection means (8).
7. The method for constructing a guard device installed on a pier according to any one of claims 1 to 6, comprising the steps of:
step 1, measuring and lofting the position of a pier, determining a template position line on a side line and a middle line of the pier, and measuring the elevation of the bottom surface of a pier body to determine the height of the template of the pier;
step 2, placing the pier template which is made in advance in river water, draining water immersed in the template, carrying out the working procedures of excavation and sinking at the same time until the pier template sinks to a proper hard soil layer at the lower side of a river bed, and then fixing the pier template on the river bed of a river channel; when the templates are installed, the templates are hoisted and assembled by a crane, constructors construct on a platform on a scaffold and perform fine and fine adjustment, before the templates are erected, each template is checked, the templates with small deformation are manually leveled, the templates with large deformation are removed from use, before the templates are adjusted, floating rust on the templates needs to be removed, a fresh release agent is brushed, sponge sealing strips are pasted on the joints of two adjacent templates, the sealing strips are prevented from being exposed out of the inner sides of the templates when being pasted, and double-layer overlapping is performed on joints to prevent exposure; when the template is reinforced, two adjacent templates and the truss are the maximum point and the weakest link of stress, and the next two adjacent templates and the truss are welded and fixed by steel bars or steel pipes, so that the vertical integral stress is uniform, and the phenomenon of bulging or folding cannot occur;
step 3, arranging a mortar leveling layer, leveling the outer side of the position of the template of the pier by using mortar according to the side line of the pier, and enabling the bottom layers of the pier templates to be positioned on the same horizontal plane;
step 4, binding pier reinforcing steel bars, erecting a scaffold along steel pipes on the outer side of a pier template, tensioning the outer side of the scaffold by using a small oil rope to ensure the integral stability of the scaffold, erecting a working platform on the scaffold, setting the distance, the position and the thickness of a concrete protective layer to be quincunx-shaped to add positioning reinforcing steel bars when binding pier body reinforcing steel bars, arranging conical or cylindrical top cap cushion blocks at two ends of the positioning reinforcing steel bars, and traversing the pier body and tightly jacking the templates on two sides;
step 5, laying pipelines of circuits and gas circuits in templates of the pier body (2), the pier (3) and the pier column (4), binding and fixing the pipelines and the pier reinforcing steel bars by iron wires, and sealing at the interface of each pipeline;
step 6, fixing each U-shaped protection plate (10) firmly at the outer side position in the pier body (2) template, so that the interval between every two protection plates (10) is the same;
step 7, pouring concrete, wherein pumping construction is adopted for pier concrete, and sand, stone, cement, water and additives in the concrete are subjected to quality inspection and meet requirements, so that the metering is accurate, and the concrete mixing time is ensured; continuously pouring concrete in a layered manner, forming at one time, wherein the layered thickness is about 3cm, and the pouring time at the layering interval does not exceed the initial setting time of the concrete determined by a test; in the concrete pouring process, in order to reduce the internal temperature of the concrete, the mold-entering temperature of the concrete is controlled within 25 ℃;
step 8, when the concrete is vibrated, an inserted vibrator is adopted, the vibration depth exceeds the depth of the contact surface of each layer, and the lower layer is guaranteed to be vibrated again before initial setting, so that the concrete has good compactness and is prevented from leaking vibration; during vibration, the vibrating rods are vertically inserted, quickly inserted and slowly discharged, the moving distance of the vibrating rods is not more than 1.5 times of the action radius of the vibrating rods, the inserting points are uniform during vibration and advance in a row or in a staggered mode so as to avoid over vibration or leakage vibration, the vibrating time of the vibrating rods is 20-30 s, and after each vibration is finished, the vibrating rods are slowly pulled out while vibrating;
step 9, after pouring of the bridge pier concrete is finished, timely plastering, slurry collecting and curing are carried out, after initial setting of the bridge pier concrete is finished, geotextile is covered on the surface of the bridge pier concrete for watering and curing, an integral curing cover is required to be adopted for curing after formwork removal, the curing cover covers the whole bridge pier, and after the curing cover is removed, a grinding machine is used for cleaning the surface of the protection plate (10);
step 10, respectively installing a solar panel (6), a controller and an air pump (7) on the pier stud (4) and electrically connecting;
step 11, respectively and fixedly installing an air injection device (8) and an electrode (9) on the pier body (2), and debugging a solar panel (6), a controller, an air pump (7), the air injection device (8) and the electrode (9);
and 12, detaching the working platform.
8. The method for constructing a protective device installed on a bridge pier as claimed in claim 7, wherein in the step 9, after the pouring of the bridge pier is completed, when the outside temperature is in a winter construction condition, the concrete is kept warm in the whole construction process, and under the condition that the temperature of the concrete entering the mold is ensured, a support is erected outside the bridge pier by using steel pipes, and thick canvas or thick plastic cloth is wrapped outside the support to form a steam curing shed, and steam curing is adopted for curing.
CN201911041684.9A 2019-10-30 2019-10-30 Protective device arranged on bridge pier and construction method thereof Active CN110735388B (en)

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CN112575682A (en) * 2020-11-25 2021-03-30 中建八局第二建设有限公司 Pier shaft maintenance device that is under construction winter
CN112813805B (en) * 2021-01-06 2022-10-25 四川路桥盛通建筑工程有限公司 Construction method of variable-section thin-wall hollow high pier of stiffened framework
CN113737637B (en) * 2021-09-26 2023-04-18 烟建集团有限公司 High stability dysmorphism pier stud

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