CN112709268A - Bridge foundation reinforcing method - Google Patents

Bridge foundation reinforcing method Download PDF

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Publication number
CN112709268A
CN112709268A CN202011562517.1A CN202011562517A CN112709268A CN 112709268 A CN112709268 A CN 112709268A CN 202011562517 A CN202011562517 A CN 202011562517A CN 112709268 A CN112709268 A CN 112709268A
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foundation
water
metal electrode
layer
pit
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CN112709268B (en
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张文明
边维豪
代丽敏
籍石磊
冯二姣
蔡志瑞
齐立杰
顾雷
梁学文
李少彬
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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
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/06—Foundation trenches ditches or narrow shafts
    • E02D17/12—Back-filling of foundation trenches or ditches
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/18—Making embankments, e.g. dikes, dams
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00—Keeping dry foundation sites or other areas in the ground
    • E02D19/06—Restraining of underground water
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/11—Improving or preserving soil or rock, e.g. preserving permafrost soil by thermal, electrical or electro-chemical means
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/36—Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/04—Pipes or fittings specially adapted to sewers
    • E03F3/046—Open sewage channels
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2200/00—Geometrical or physical properties
    • E02D2200/17—Geometrical or physical properties including an electric conductive element
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Health & Medical Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Agronomy & Crop Science (AREA)
  • Public Health (AREA)
  • Soil Sciences (AREA)
  • Foundations (AREA)

Abstract

The invention discloses a bridge foundation reinforcing method, which comprises the following steps of 1: firstly, carrying out excavation and marking preparation operation of an embedded pit on the construction ground of a bridge foundation, wherein the width of the embedded pit is 10 meters and the depth of the embedded pit is 5 meters, and then preparing an embedded pit filling material; step 2: excavating the foundation embedded pit, wherein excavated soil is accumulated on two sides of the embedded pit, and after the foundation embedded pit is excavated, the upper ends of clay layers in the embedded pit are tied up to construct reinforcement hooping columns; and step 3: reinforcing ribs are welded and installed on the periphery of the steel bar hoop column, then guide slopes are built on two sides of the foundation pre-buried pit by using dug soil, water guide channels are arranged on the inner outer wall of each guide slope, and the distance between every two adjacent water guide channels is 2 meters. It has realized the effect of reinforcing bridge foundation overall structure intensity, has reduced the moisture content and the ground water level of cohesive soil to the possibility of displacement is subsided in the emergence has been reduced.

Description

Bridge foundation reinforcing method
Technical Field
The invention relates to the technical field of bridge foundation reinforcement, in particular to a bridge foundation reinforcement method.
Background
The foundation refers to the soil or rock mass of the supporting foundation under the building. Soil layers as building foundations are divided into rocks, gravel soil, sandy soil, silt soil, cohesive soil and artificial filling soil. The foundation includes natural foundation and artificial foundation. The natural foundation is a natural soil layer which does not need to be reinforced by people, and the bridge foundation is the lowest part of the bridge structure which is directly contacted with the foundation and is an important component of the bridge substructure. The part of the stratum that receives the load from the foundation is called the foundation. The foundation and the foundation are stressed and deformed after being subjected to various loads, the foundation and the foundation have enough strength and stability in order to ensure the normal use and safety of the bridge, the deformation is also within an allowable range, and the bridge foundation is used for bearing all the loads transmitted by the upper structure and transmitting the loads of the upper structure and the lower structure to the foundation. Therefore, for safe and normal use of the full bridge, the foundation and foundation are required to have sufficient strength, rigidity and overall stability so that they do not undergo excessive horizontal displacement or uneven settlement.
The existing bridge foundation is lack of stability in the construction process, the problem of settlement displacement is easy to occur, and the stable erection and use of the bridge foundation are affected, so that the bridge foundation reinforcing method is provided.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
The invention also aims to provide a bridge foundation reinforcing method, which realizes the effect of enhancing the integral structure strength of the bridge foundation and reduces the water content and the underground water level of cohesive soil, thereby reducing the possibility of settlement displacement.
In order to achieve the above objects and other objects, the present invention adopts the following technical solutions:
a bridge foundation reinforcing method comprises the following steps:
step 1: firstly, carrying out excavation and marking preparation operation of an embedded pit on the construction ground of a bridge foundation, wherein the width of the embedded pit is 10 meters and the depth of the embedded pit is 5 meters, and then preparing an embedded pit filling material;
step 2: excavating the foundation embedded pit, wherein excavated soil is accumulated on two sides of the embedded pit, and after the foundation embedded pit is excavated, the upper end of a clay layer in the embedded pit is tied up to construct a reinforcement stirrup;
and step 3: reinforcing ribs are welded and installed on the periphery of the steel bar hoop column, then guide slopes are built on two sides of a foundation pre-buried pit by using dug soil, water guide channels are arranged on the inner outer wall of each guide slope, and the distance between every two adjacent water guide channels is 2 meters;
and 4, step 4: welding an arch-shaped steel bar hoop and a wedge-shaped steel bar hoop at the upper end of the steel bar hoop column, and then pouring concrete by taking the welded integral steel bar hoop column as a reference to construct a pile-forming foundation column;
and 5: after the pile foundation column is built, an anode metal electrode and a cathode metal electrode are inserted and installed on a clay layer in the foundation embedded pit, and then prepared embedded pit filling materials are paved in the foundation embedded pit in a layered mode;
step 6: the upper end on clay layer is laid sand stone overburden, sand ramming layer, reinforcing bar prefabricated layer and concrete leveling layer from bottom to top in proper order, and each layer is laid and is all carried out flattening work and is laying the second floor after accomplishing, and the ground pre-buried hole is filled and is carried out drainage treatment after accomplishing, at last alright in order to erect bridge substructure in the upper end construction on concrete leveling layer.
Wherein, the bridge foundation includes the pre-buried hole of ground, the inside in pre-buried hole of ground is provided with a foundation column, the outside of foundation column is provided with clay layer, gravel and sand overburden, sand ramming layer, the prefabricated layer of reinforcing bar and the layer of leveling of concrete, positive pole metal electrode and negative pole metal electrode are installed to the upper end on clay layer, and positive pole metal electrode and negative pole metal electrode run through the outside that extends to the pre-buried hole of ground, the frame of going out water is installed to the upper end of negative pole motor metal electrode, the both sides in pre-buried hole of ground all are provided with the direction slope.
Preferably, the drainage treatment of step 6 includes the steps of:
step 6-1: the anode metal electrode and the cathode metal electrode which are installed in advance pass through the upper ends of the anode metal electrode and the cathode metal electrode which are installed in advance, and every two anode metal electrodes and every two cathode metal electrodes are a group and are respectively connected with the anode and the cathode of the same power supply;
step 6-2: the upper end of the cathode metal electrode is provided with a water outlet frame, the lower end of a water discharge pipe of the water outlet frame is inserted into the water inlet port, and the water outlet frame is connected with the concrete floating layer in a pouring mode through the embedded bottom plate;
step 6-3: introducing direct current to the anode metal electrode and the cathode metal electrode to enable a water layer of a clay layer at the lowest part of the foundation pre-buried pit to flow to the cathode metal electrode and enable the water level of the cathode to rise;
step 6-4: the raised water level flows into the water outlet frame along the cathode metal electrode, and is discharged into the water inlet port through the water discharge pipe at one side of the water outlet frame, so that the discharged water is discharged through the water guide channel.
Preferably, a drain pipe is arranged on the outer wall of one side of the water outlet frame, the drain pipe is communicated with the inside of the water outlet frame, a pre-embedded bottom plate is arranged at the bottom of the water outlet frame, and the pre-embedded bottom plate and the water outlet frame are integrally formed.
Preferably, the top of the water outlet frame is provided with a threading groove, the threading groove and the water outlet frame are integrally formed, the threading plate is arranged inside the threading groove, and the peripheral edge of the threading plate is in mechanical sealing connection with the threading groove.
Preferably, adjacent two the upper end of pile foundation post is provided with the arch support, and arch support and pile foundation post integrated into one piece set up, the upper end of arch support is provided with the wedge and supports the kicking block, and the arch support supports the lower part structural support connection of kicking block and bridge through the wedge.
Preferably, a water guide channel is arranged inside the guide slope, the water guide channel and the guide slope are integrally formed, a water inlet port is formed in the top of the water guide channel, the water inlet port and the water guide channel are integrally formed, and the water inlet port is communicated with the water guide channel.
Preferably, the inside of pile foundation post is provided with the reinforcement hoop post, all be provided with the strengthening rib around the reinforcement hoop post, the strengthening rib is about the central point symmetric distribution of reinforcement hoop post, and the both ends of strengthening rib respectively with reinforcement hoop post welded connection.
Preferably, the reinforcement stirrup constructed in the step 2 is horizontally arranged at intervals of 6 m, and is longitudinally arranged at intervals of 2 m.
The invention at least comprises the following beneficial effects:
1. according to the invention, direct current is introduced to the anode metal electrode and the cathode metal electrode, so that a water layer of a clay layer at the lowest part of the foundation pre-buried pit flows to the cathode metal electrode, the water level of the cathode is raised, the raised water level flows into the water outlet frame along the cathode metal electrode, and is discharged into the water inlet port through the water discharge pipe at one side of the water outlet frame, so that the discharged water is discharged through the water guide channel, the water content and the underground water level of cohesive soil are reduced, the possibility of settlement displacement is reduced, and the problems that the stability of the existing bridge foundation is deficient in the construction process and the settlement displacement is easy to occur are solved.
2. The upper end of the steel hoop column is welded with the arched steel hoop and the wedge-shaped steel hoop, then the welded integral steel hoop column is used as a reference for pouring concrete to build the pile-forming foundation column, and the arched support is connected with the lower structure support of the bridge through the wedge-shaped support jacking block, so that the strength of the foundation and the lower structure support position of the bridge is enhanced by utilizing the arch and the wedge-shaped structure, and the aim of reinforcing the bridge foundation is fulfilled.
Drawings
FIG. 1 is a schematic view of the overall work flow of the bridge foundation reinforcing method provided by the invention;
FIG. 2 is a schematic view of a drainage treatment process of the bridge foundation stabilization method provided by the present invention;
FIG. 3 is a schematic view of the overall structure of a bridge foundation according to the method for reinforcing the bridge foundation of the present invention;
FIG. 4 is a schematic view of an internal structure of a foundation embedded pit of the bridge foundation reinforcing method provided by the invention;
fig. 5 is a schematic structural view of a water outlet frame of the bridge foundation reinforcing method provided by the invention.
Detailed Description
The present invention is described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description.
As shown in fig. 1 to 5, a method for reinforcing a bridge foundation includes the following steps:
step 1: firstly, carrying out excavation and marking preparation operation of an embedded pit on the construction ground of a bridge foundation, wherein the width of the embedded pit is 10 meters and the depth of the embedded pit is 5 meters, and then preparing an embedded pit filling material;
step 2: excavating the foundation embedded pit, wherein excavated soil is accumulated on two sides of the embedded pit, and after the foundation embedded pit is excavated, the upper end of a clay layer in the embedded pit is tied up to construct a reinforcement stirrup;
and step 3: reinforcing ribs are welded and installed on the periphery of the steel bar hoop column, then guide slopes are built on two sides of a foundation pre-buried pit by using dug soil, water guide channels are arranged on the inner outer wall of each guide slope, and the distance between every two adjacent water guide channels is 2 meters;
and 4, step 4: welding an arch-shaped steel bar hoop and a wedge-shaped steel bar hoop at the upper end of the steel bar hoop column, and then pouring concrete by taking the welded integral steel bar hoop column as a reference to construct a pile-forming foundation column;
and 5: after the pile foundation column is built, an anode metal electrode and a cathode metal electrode are inserted and installed on a clay layer in the foundation embedded pit, and then prepared embedded pit filling materials are paved in the foundation embedded pit in a layered mode;
step 6: the upper end on clay layer is laid sand stone overburden, sand ramming layer, reinforcing bar prefabricated layer and concrete leveling layer from bottom to top in proper order, and each layer is laid and is all carried out flattening work and is laying the second floor after accomplishing, and the ground pre-buried hole is filled and is carried out drainage treatment after accomplishing, at last alright in order to erect bridge substructure in the upper end construction on concrete leveling layer.
Wherein, the bridge foundation comprises a foundation pre-buried pit 1, the inside of the foundation pre-buried pit 1 is provided with a pile foundation column 5, the pile foundation column 5 is provided with a clay layer 12, a gravel covering layer 13, a gravel tamping layer 14, a steel bar prefabricating layer 15 and a concrete leveling layer 16, the upper end of the clay layer 12 is provided with an anode metal electrode 8 and a cathode metal electrode 9, the anode metal electrode 8 and the cathode metal electrode 9 penetrate and extend to the outside of the foundation pre-buried pit 1, the upper end of the cathode motor metal electrode 9 is provided with a water outlet frame 17, two sides of the foundation pre-buried pit 1 are provided with guide slopes 2, the pile foundation column arranged inside the foundation pre-buried pit plays a role in supporting an arch support and a wedge-shaped supporting top block, the clay layer, the gravel covering layer, the gravel tamping layer, the steel bar layer and the concrete leveling layer arranged outside the pile foundation column play a role in filling the foundation pre-buried pit, the anode metal electrode and the cathode metal electrode installed at the upper end of the clay layer play a role in forming an electroosmosis structure, the water outlet frame installed at the upper end of the cathode motor metal electrode plays a role in facilitating water seepage drainage, and the guide slopes arranged on the two sides of the foundation embedded pit play a role in facilitating downward drainage inside the water guide channel.
In a preferred embodiment, the drainage treatment of step 6 includes the following steps:
step 6-1: the anode metal electrode and the cathode metal electrode which are installed in advance pass through the upper ends of the anode metal electrode and the cathode metal electrode which are installed in advance, and every two anode metal electrodes and every two cathode metal electrodes are a group and are respectively connected with the anode and the cathode of the same power supply;
step 6-2: the upper end of the cathode metal electrode is provided with a water outlet frame, the lower end of a water discharge pipe of the water outlet frame is inserted into the water inlet port, and the water outlet frame is connected with the concrete floating layer in a pouring mode through the embedded bottom plate;
step 6-3: introducing direct current to the anode metal electrode and the cathode metal electrode to enable a water layer of a clay layer at the lowest part of the foundation pre-buried pit to flow to the cathode metal electrode and enable the water level of the cathode to rise;
step 6-4: the raised water level flows into the water outlet frame along the cathode metal electrode, and is discharged into the water inlet port through the water discharge pipe at one side of the water outlet frame, so that the discharged water is discharged through the water guide channel.
In a preferred scheme, a drain pipe 21 is arranged on the outer wall of one side of the water outlet frame 17, the drain pipe 21 is communicated with the inside of the water outlet frame 17, an embedded bottom plate 18 is arranged at the bottom of the water outlet frame 17, and the embedded bottom plate 18 and the water outlet frame 17 are integrally formed.
In the above scheme, the drain pipe that sets up on one side outer wall of play water frame plays the effect of being convenient for to go into the aqueduct with the water that oozes, and the pre-buried bottom plate that the bottom of play water frame set up plays the effect of being convenient for the pre-buried installation of play water frame.
In a preferred scheme, the top of frame 17 that goes out water is provided with threading groove 19, and threading groove 19 sets up with frame 17 integrated into one piece that goes out water, the inside of threading groove 19 is provided with walks line board 20, and walks the border all around of line board 20 and is connected with 19 mechanical seal of threading groove.
In the above scheme, the threading groove arranged at the top of the water outlet frame plays a role in facilitating the connection of the cathode metal electrode and the direct-current power line, and the wiring plate arranged inside the threading groove plays a role in facilitating the wiring of the power line.
In an optimal scheme, adjacent two the upper end of pile foundation post 5 is provided with arch support 10, and arch support 10 and pile foundation post 5 integrated into one piece set up, arch support 10's upper end is provided with wedge and supports kicking block 11, and arch support 10 supports the substructure support connection of kicking block 11 and bridge through the wedge.
In the scheme, the arch supports arranged at the upper ends of the two adjacent pile foundation columns play a role in strengthening the overall structural strength of the foundation, and the wedge-shaped supporting jacking blocks arranged at the upper ends of the arch supports play a role in connecting the lower structure of the bridge with the arch supports.
In a preferable scheme, a water guide channel 6 is arranged inside the guide slope 2, the water guide channel 6 and the guide slope 2 are integrally formed, a water inlet port 7 is arranged at the top of the water guide channel 6, the water inlet port 7 and the water guide channel 6 are integrally formed, and the water inlet port 7 is communicated with the water guide channel 6.
In the above scheme, the water guide channel arranged inside the guide slope plays a role in discharging water seeped out of the foundation, and the water inlet port arranged at the top of the water guide channel plays a role in facilitating the seeped water to enter the water guide channel.
In an optimal scheme, the inside of pile foundation column 5 is provided with steel reinforcement stirrup 3, all be provided with strengthening rib 4 around steel reinforcement stirrup 3, strengthening rib 4 is about the centre of a circle point symmetric distribution of steel reinforcement stirrup 3, and the both ends of strengthening rib 4 respectively with 3 welded connection of steel reinforcement stirrup.
In the above scheme, the steel reinforcement hoop column that the inside of pile foundation post set up plays the effect of making up pile foundation post overall structure skeleton, and the strengthening rib that all sets up around the steel reinforcement hoop column plays the effect of strengthening pile foundation post overall structure intensity.
In a preferred embodiment, the reinforcement stirrup constructed in the step 2 is horizontally arranged at intervals of 6 meters, and is longitudinally arranged at intervals of 2 meters.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims (8)

1. A bridge foundation reinforcing method is characterized by comprising the following steps:
step 1: firstly, carrying out excavation and marking preparation operation of an embedded pit on the construction ground of a bridge foundation, wherein the width of the embedded pit is 10 meters and the depth of the embedded pit is 5 meters, and then preparing an embedded pit filling material;
step 2: excavating the foundation embedded pit, wherein excavated soil is accumulated on two sides of the embedded pit, and after the foundation embedded pit is excavated, the upper ends of clay layers in the embedded pit are tied up to construct reinforcement hooping columns;
and step 3: reinforcing ribs are welded and installed on the periphery of the steel bar hoop column, then guide slopes are built on two sides of a foundation pre-buried pit by using dug soil, water guide channels are arranged on the inner outer wall of each guide slope, and the distance between every two adjacent water guide channels is 2 meters;
and 4, step 4: welding an arch-shaped steel bar hoop and a wedge-shaped steel bar hoop at the upper end of the steel bar hoop column, and then pouring concrete by taking the welded integral steel bar hoop column as a reference to construct a pile-forming foundation column;
and 5: after the pile foundation column is built, an anode metal electrode and a cathode metal electrode are inserted and installed on a clay layer in the foundation embedded pit, and then prepared embedded pit filling materials are paved in the foundation embedded pit in a layered mode;
step 6: sequentially laying a sand covering layer, a sand ramming layer, a steel bar prefabricated layer and a concrete leveling layer at the upper end of the clay layer from bottom to top, leveling once after each layer is laid, laying a second layer, and performing drainage treatment after foundation pre-buried pits are filled, so that a bridge substructure can be built and erected at the upper end of the concrete leveling layer;
wherein, the bridge foundation includes the pre-buried hole of ground, the inside in pre-buried hole of ground is provided with a foundation column, the outside of foundation column is provided with clay layer, gravel and sand overburden, sand ramming layer, the prefabricated layer of reinforcing bar and the layer of leveling of concrete, positive pole metal electrode and negative pole metal electrode are installed to the upper end on clay layer, and positive pole metal electrode and negative pole metal electrode run through the outside that extends to the pre-buried hole of ground, the frame of going out water is installed to the upper end of negative pole motor metal electrode, the both sides in pre-buried hole of ground all are provided with the direction slope.
2. The bridge foundation reinforcing method according to claim 1, wherein the drainage treatment of step 6 comprises the steps of:
step 6-1: the anode metal electrode and the cathode metal electrode which are installed in advance pass through the upper ends of the anode metal electrode and the cathode metal electrode which are installed in advance, and every two anode metal electrodes and every two cathode metal electrodes are a group and are respectively connected with the anode and the cathode of the same power supply;
step 6-2: the upper end of the cathode metal electrode is provided with a water outlet frame, the lower end of a water discharge pipe of the water outlet frame is inserted into the water inlet port, and the water outlet frame is connected with the concrete floating layer in a pouring mode through the embedded bottom plate;
step 6-3: introducing direct current to the anode metal electrode and the cathode metal electrode to enable a water layer of a clay layer at the lowest part of the foundation pre-buried pit to flow to the cathode metal electrode and enable the water level of the cathode to rise;
step 6-4: the raised water level flows into the water outlet frame along the cathode metal electrode, and is discharged into the water inlet port through the water discharge pipe at one side of the water outlet frame, so that the discharged water is discharged through the water guide channel.
3. The bridge foundation reinforcing method according to claim 1, wherein a drain pipe is arranged on an outer wall of one side of the water outlet frame, the drain pipe is communicated with the inside of the water outlet frame, an embedded bottom plate is arranged at the bottom of the water outlet frame, and the embedded bottom plate and the water outlet frame are integrally formed.
4. The bridge foundation reinforcing method according to claim 1, wherein a threading groove is formed in the top of the water outlet frame, the threading groove and the water outlet frame are integrally formed, a routing plate is arranged inside the threading groove, and the peripheral edge of the routing plate is in mechanical sealing connection with the threading groove.
5. The bridge foundation reinforcing method according to claim 1, wherein an arch support is arranged at the upper end of two adjacent pile foundation columns and is integrally formed with the pile foundation columns, a wedge-shaped supporting top block is arranged at the upper end of the arch support, and the arch support is in supporting connection with a lower structure of the bridge through the wedge-shaped supporting top block.
6. The bridge foundation reinforcing method according to claim 1, wherein a water guide channel is arranged inside the guide slope, the water guide channel and the guide slope are integrally formed, a water inlet port is arranged at the top of the water guide channel, the water inlet port and the water guide channel are integrally formed, and the water inlet port and the water guide channel are communicated.
7. The method for reinforcing the foundation of a bridge according to claim 1, wherein a steel hoop column is arranged inside the pile foundation column, reinforcing ribs are arranged around the steel hoop column, the reinforcing ribs are symmetrically distributed about a center point of the steel hoop column, and two ends of each reinforcing rib are respectively welded to the steel hoop column.
8. The method for reinforcing a bridge foundation according to claim 1, wherein the reinforcement stirrup constructed in the step 2 is horizontally aligned at a distance of 6 m, and is longitudinally aligned at a distance of 2 m.
CN202011562517.1A 2020-12-25 2020-12-25 Bridge foundation reinforcing method Active CN112709268B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05125891A (en) * 1991-11-05 1993-05-21 Shimizu Corp Large bore underground wall and its constructing method, and pipe burying excavator
CN102071697A (en) * 2011-02-12 2011-05-25 河海大学 Hard reinforced concrete revetment slope biological repairing method
CN107989057A (en) * 2017-12-12 2018-05-04 马亮 A kind of Bridge Pile Foundation Construction method
CN108166397A (en) * 2017-12-31 2018-06-15 中铁十九局集团第二工程有限公司 Railway frame bridge construction method
CN110952586A (en) * 2019-12-06 2020-04-03 中铁十八局集团建筑安装工程有限公司 Construction process for bearing platform below expressway

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05125891A (en) * 1991-11-05 1993-05-21 Shimizu Corp Large bore underground wall and its constructing method, and pipe burying excavator
CN102071697A (en) * 2011-02-12 2011-05-25 河海大学 Hard reinforced concrete revetment slope biological repairing method
CN107989057A (en) * 2017-12-12 2018-05-04 马亮 A kind of Bridge Pile Foundation Construction method
CN108166397A (en) * 2017-12-31 2018-06-15 中铁十九局集团第二工程有限公司 Railway frame bridge construction method
CN110952586A (en) * 2019-12-06 2020-04-03 中铁十八局集团建筑安装工程有限公司 Construction process for bearing platform below expressway

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