CN115075236A - Special-shaped underwater section bridge pile foundation reinforcing structure and measuring construction method - Google Patents
Special-shaped underwater section bridge pile foundation reinforcing structure and measuring construction method Download PDFInfo
- Publication number
- CN115075236A CN115075236A CN202210937380.6A CN202210937380A CN115075236A CN 115075236 A CN115075236 A CN 115075236A CN 202210937380 A CN202210937380 A CN 202210937380A CN 115075236 A CN115075236 A CN 115075236A
- Authority
- CN
- China
- Prior art keywords
- pile foundation
- bridge pile
- steel casing
- lantern ring
- measuring
- 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.)
- Granted
Links
- 238000010276 construction Methods 0.000 title claims abstract description 49
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 42
- 238000009991 scouring Methods 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 73
- 239000010959 steel Substances 0.000 claims description 73
- 230000002787 reinforcement Effects 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000004567 concrete Substances 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 239000011376 self-consolidating concrete Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000003754 machining Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 201000010099 disease Diseases 0.000 claims 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims 1
- 238000000691 measurement method Methods 0.000 claims 1
- 230000009471 action Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- 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
- E02D5/64—Repairing piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Bridges Or Land Bridges (AREA)
- Foundations (AREA)
Abstract
The invention provides a reinforcing structure of a special-shaped underwater section bridge pile foundation and a measuring construction method, which are mainly used for repairing, reinforcing and protecting the bridge pile foundation impacted by rivers. The reinforcing structure in the technical scheme can be matched with the gradient and the shape of the hard foundation of the riverbed, so that the bridge pile foundation is completely protected, and the construction method breaks through the limitations of the conventional construction method aiming at the problems of high river scouring strength and difficult construction.
Description
Technical Field
The invention relates to the technical field of bridge and road repair, in particular to a special-shaped underwater section bridge pile foundation reinforcing structure and a measuring construction method.
Background
In recent years, the construction of the traffic industry in China is rapidly developed, a road network is built in a four-way and eight-reach way, a large proportion of bridges crossing rivers exist in the huge road network system, in the part of the bridges, a plurality of bridge pile foundations are positioned in rivers, and under the continuous erosion and scouring action of the rivers, the bridge pile foundations in part of areas are seriously damaged, so that the pile head parts are exposed, and the reinforcing steel bar protection layers are thinner to cause the problems of damage, rib exposure, corrosion and the like. According to the information of related departments, the damage to bridge pile foundations caused by river scouring in China is as high as hundreds of millions of yuan each year since the last 70 th century till now, and the indirect loss caused by the damage is difficult to estimate, so that the method plays a vital role in timely and effective management maintenance and reinforcement of the bridges on the operation roads.
When the bridge pile foundation affected by river erosion is treated and reinforced, the construction is limited by steep gradient of the junction of the pile foundation and a river bed and large irregular difference of the section shape, and the hydraulic water depth destructive power is strong, so that the traditional construction method of some reinforcement protection structures on land is difficult to borrow and transplant into the pile foundation of the type, the common construction method is difficult to protect the bridge pile foundation comprehensively, a large gap between the reinforcement structure and the foundation of the river bed is not matched, the adaptive design can not be carried out aiming at the corresponding bridge pile foundation, the reinforcement protection effect is poor, and the problem is not solved by a good method at present.
Disclosure of Invention
The invention aims to provide a reinforcing structure of a bridge pile foundation with a special-shaped underwater section and a measuring construction method, and solves the problems that when a traditional scheme is used for reinforcing and protecting the bridge pile foundation, a larger gap is formed between the reinforcing structure and a riverbed base, the reinforcing structure is not matched with the riverbed base, the protection is not complete enough, the reinforcing effect is poor, the construction difficulty is high, and the efficiency is low.
The embodiment of the invention is realized by the following technical scheme:
the utility model provides a heterotypic underwater section bridge pile foundation reinforced structure, mainly restores to consolidate the protection to the bridge pile foundation that is strikeed by the river, covers the steel casing around the bridge pile foundation, and the shape of steel casing lower extreme is identical with the slope and the shape of bridge pile foundation bottom riverbed stereoplasm basement to the steel casing is permanent template, pours self-compaction concrete between steel casing and bridge pile foundation and consolidates the protection.
The steel casing is further formed by splicing at least two parts, and the spliced part is hermetically connected in a welding mode.
Further, the cross section of the steel casing is of a hollow circular structure and is formed by splicing two semicircular parts.
A measuring construction method of a special-shaped underwater section bridge pile foundation reinforcing structure is applicable to the reinforcing structure of any one of claims 1 to 3, is mainly used for measuring the size of the reinforcing structure and machining and installing the reinforcing structure, and specifically comprises the following steps:
s1, firstly, excavating the riverbed around the bridge pile foundation until a hard substrate is excavated, and laying a foundation for subsequent construction;
s2, measuring the size of a bridge pile foundation and manufacturing positioning frames, wherein each positioning frame is of a semicircular structure, the two positioning frames arranged in a left mirror image mode and a right mirror image mode are combined together through a connecting piece to form a ring-shaped closed whole, the bridge pile foundation is surrounded in the middle of the inner cavities of the two positioning frames, the positioning frames can be divided into an upper layer lantern ring layer and a lower layer lantern ring layer from top to bottom, limiting rings are arranged in the upper layer lantern ring layer and the lower layer lantern ring layer, and the upper layer lantern ring layer and the lower layer lantern ring layer are connected through connecting vertical rods to form an integrated structure;
s3, arranging a plurality of measuring positioning rings at equal intervals on the circumferences of an upper-layer lantern ring and a lower-layer lantern ring of the positioning frame along the clockwise direction, wherein the axes of the two measuring positioning rings of the upper-layer lantern ring and the lower-layer lantern ring at the same position vertically coincide;
s4, arranging an installation support around the bridge pile foundation to facilitate the movement of construction personnel, arranging an extension ring on the periphery of the lower lantern ring of the positioning frame to enable the extension ring to be erected on the installation support, and thus facilitating the installation of the positioning frame on the bridge pile foundation;
s5, taking the top surface of the bridge pile foundation as a starting end, and marking a control line and a positioning control point in the circumferential direction to enable the position of the upper-layer sleeve ring of the positioning frame to be consistent with that of the control line;
s6, inserting the measuring rods into the measuring positioning rings from top to bottom, vertically penetrating the upper and lower measuring positioning rings by a single measuring rod until the bottom of the measuring rod is contacted with the riverbed hard substrate at the bottom of the pier pile foundation, recording data of each measuring rod and each measuring positioning ring after measurement, and arranging and drawing the data into a section diagram;
s7, lofting the steel casing according to the measured data and the drawn section diagram, performing differential cutting on the bottom of the steel casing after lofting of the steel casing is completed, determining the shape of the lower end of the steel casing to be matched with the shape of the riverbed hard substrate, and completing manufacturing of the steel casing;
s8, disassembling the positioning frame, trial-placing the steel casing by adopting a crane mode, placing the steel casing according to the position of the positioning control point, sleeving the steel casing cover outside the annular wall of the bridge pile foundation, enabling the bottom of the steel casing to be matched with the shape of the hard base of the river bed at the bottom of the bridge pile foundation, pouring self-compacting concrete between the steel casing and the bridge pile foundation, completing the construction process of the whole pile foundation reinforcing structure, and reinforcing and protecting the part of the bridge pile foundation exposed in the river under scouring.
Further, in step S3, the measuring positioning ring has an annular structure with a through hole in the middle.
Further, in the step S2, the limiting ring and the upper collar and the limiting ring and the lower collar are connected by a first connecting rod, and the diameter of the limiting ring is equal to the diameter of the bridge pile foundation.
Further lie in, the diameter of upper lantern ring and lower floor's lantern ring is unanimous with the diameter that the steel was buried underground to the design, and the distance between spacing ring and the upper lantern ring is the thickness on concrete placement layer.
Further, in step S3, the positions of the plurality of measuring positioning rings are numbered.
Further, in the step S8, after the corrosion, exposed reinforcement and other defects of the bridge pile foundation are treated and the reinforcement is embedded, a reinforcement cylinder mould is erected on the circumferential wall of the bridge pile foundation, the steel casing and the periphery of the reinforcement cylinder mould are fixedly connected, the underwater bottom sealing concrete is poured, after the bottom sealing concrete is finally set and reaches a certain strength, the water pump is used for pumping the water stored between the bottom of the steel casing and the bridge pile foundation, and then the self-compacting concrete is used for pouring and filling the reinforcement cylinder mould.
Further, in step S8, when an error occurs in the trial release process, the steel casing is lifted up, partially cut or welded, and then hung down again.
The technical scheme of the embodiment of the invention at least has the following advantages and beneficial effects:
the invention provides a reinforcing structure and a construction method for a bridge pile foundation in a targeted manner aiming at the construction environment with torrential rivers, the reinforcing structure can be matched with the gradient and the shape of a hard foundation of a riverbed, the bridge pile foundation is completely protected, and the construction method provided by the invention is used for solving the problems of high river scouring strength and difficult construction.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
FIG. 1 is a schematic view of the overall structure of the reinforcing structure of the present invention installed on a bridge pile foundation;
FIG. 2 is a schematic perspective view of the extension ring mounted on the mounting bracket of the present invention;
FIG. 3 is a schematic perspective view of the extension ring and the positioning frame of the present invention after being connected;
FIG. 4 is a top view of the extension ring of the present invention shown attached to the spacer;
FIG. 5 is a schematic perspective view of a positioning frame according to the present invention;
fig. 6 is a construction flow chart of the reinforcing structure of the present invention.
Icon: 1. a bridge pile foundation; 2. a positioning frame; 21. an upper collar; 22. a lower collar; 23. connecting the vertical rods; 24. measuring a positioning ring; 25. a limiting ring; 26. a first connecting rod; 27. a connecting member; 28. an extension ring; 29. a second connecting rod; 3. a measuring rod; 4. mounting a bracket; 5. a steel casing; 6. a steel bar mesh cage.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The reinforcing structure and the measuring construction method in the technical scheme are mainly applied to the condition that the bridge pile foundation 1 supporting the bridge at the river channel is damaged by local exposed tendons, corrosion and the like after being washed by rivers, at present, the traffic construction in China is developed at a high speed, a great number of bridge underwater pile foundations exist in a huge road network system, the bridge pile foundation 1 is seriously damaged under the continuous washing action of water flow along with the passage of time, even the normal use of the bridge is influenced, the traveling safety of drivers and passengers and people is threatened, but the repairing and reinforcing treatment of the part of the bridge pile foundation 1 exposed in the water flow is difficult to be effectively realized due to the special condition of the construction environment, and aiming at the problems, I have created the structure and the measuring construction method for reinforcing and protecting the abnormal underwater section bridge pile foundation through long-time exploration and experiments, aiming at the shapes and the gradients of the riverbeds at the bottom ends of different bridge pile foundations 1, a protection structure matched with the river beds is processed, so that a better protection effect is achieved, the construction efficiency is higher, the structure is reliable, the cost is reduced compared with that of the traditional mode, the technical scheme is tested in a project for reinforcing and repairing the pile foundations of the extra-large bridge in Jialing river, and the method is worthy of popularization and use.
As shown in fig. 1, a reinforcement structure for a bridge pile foundation with a special-shaped underwater section is mainly used for repairing and protecting a bridge pile foundation 1 impacted by a river, and during repairing, a non-flood period is selected as much as possible, or other modes such as cofferdams and the like are adopted, so that no deep water or rapid flow exists in a construction area, and the construction safety is ensured; in the project is restoreed in the reinforcement of jialing river bridge girder foundation, used this technical scheme to restore reinforcement to bridge girder foundation 1, reinforced structure is when implementing, can set up steel casing 5 around bridge girder foundation 1, the shape of 5 lower extremes of steel casing is identical with the slope and the shape of 1 bottom riverbed stereoplasm basement of bridge girder foundation, and simultaneously, use steel casing 5 to permanent template, still pour self-compaction concrete between steel casing 5 and the bridge girder foundation 1, and then prolong the life of bridge girder foundation 1.
As shown in fig. 1, the cross section of the steel casing 5 is a hollow circular structure, which is formed by splicing two semicircular components, and the spliced part is sealed and fixed by welding, so that the bridge pile foundation 1 is wrapped in the inner cavity, the sealing performance is good, when in construction, a layer of reinforcement cage 6 is wrapped on the circumferential wall of the bridge pile foundation 1, then the steel casing 5 is sequentially installed on the periphery of the reinforcement cage 6 according to the measured position, and the reinforcement protection of the bridge pile foundation 1 is realized after self-compacting concrete is poured in the inner cavity between the bridge pile foundation 1 and the steel casing 5.
During construction, the inner wall, the outer wall and the welding joint of the steel casing 5 are sprayed with antirust paint, so that the service life is prolonged.
As shown in fig. 6, a measurement construction method of a reinforcement structure of a pile foundation of a bridge with a special-shaped underwater section is mainly used for measuring the size of the reinforcement structure and machining and installing the reinforcement structure, and the construction method specifically comprises the following steps:
s1, firstly, excavating the riverbed around the bridge pile foundation 1 until a hard substrate is excavated, and laying a foundation for subsequent construction;
s2, as shown in figures 2, 4 and 5, measuring the size of the bridge pile foundation 1 and manufacturing the positioning frames 2, wherein a single positioning frame 2 is of a semicircular structure, the two positioning frames 2 arranged in a left mirror image and a right mirror image are combined together through the connecting piece 27 to form an annular closed whole body, the connecting mode adopts a bolt for connecting and fixing, and the bridge pile foundation 1 is surrounded in the middle of the inner cavities of the two positioning frames;
according to the technical scheme of the upper section, besides adopting bolt connection, welding fixation can also be used.
The positioning frame 2 can be divided into an upper lantern ring 21 and a lower lantern ring 22 from top to bottom, limiting rings 25 are arranged inside the upper lantern ring 21 and the lower lantern ring 22, the limiting rings 25, the upper lantern ring 21 and the lower lantern ring 22 are of semicircular structures, the limiting rings 25, the upper lantern ring 21, the limiting rings 25 and the lower lantern ring 22 are connected through a first connecting rod 26, the diameter of each limiting ring 25 is equal to that of the bridge pile foundation 1, in addition, the upper lantern ring 21 and the lower lantern ring 22 are connected through a vertical connecting rod 23 to form an integrated structure, and the structure is stable;
according to the technical scheme in the upper section, during actual construction, the diameters of the upper-layer lantern ring 21 and the lower-layer lantern ring 22 are consistent with the diameter of the position where the steel casing 5 is designed to be embedded, and the distance between the limiting ring 25 and the upper-layer lantern ring 21 is the thickness of a concrete pouring layer.
S3, as shown in fig. 5, a plurality of measuring positioning rings 24 are arranged at equal intervals on the circumference of the upper layer lantern ring 21 and the lower layer lantern ring 22 of the positioning frame 2 along the clockwise direction, the axes of the two measuring positioning rings 24 at the same position of the upper layer lantern ring 21 and the lower layer lantern ring 22 are vertically overlapped, the measuring positioning rings 24 are in an annular structure with a through hole in the middle, and the positions of the plurality of measuring positioning rings 24 are numbered and recorded, so that the corresponding measuring positions can be found according to the numbers in the following process;
as shown in fig. 5, the upper and lower double layers of the positioning frame 2 are provided with the measuring positioning rings 24, the double-layer structure is more reliable, the measuring precision can be improved, in the project of reinforcing and repairing the pile foundation of the grand bridge in jialing river, the measuring positioning rings 24 are arranged at the circumference of the positioning frame 2 at intervals of 15cm clockwise, and 64 measuring positioning rings 24 are required according to the circumference of the bridge pier.
S4, as shown in figures 2 and 3, arranging a mounting bracket 4 around a bridge pile foundation 1, wherein the mounting bracket 4 is of a hollow rectangular structure, the bridge pile foundation 1 is located in the middle of the mounting bracket 4, so that a constructor can conveniently move and construct, arranging an extension ring 28 on the periphery of a lower-layer lantern ring 22 of a positioning frame 2, and connecting the extension ring 28 with the lower-layer lantern ring 22 through a second connecting rod 29 to enable the extension ring 28 to be erected above the mounting bracket 4, and the arrangement of the extension ring 28 is convenient for installing the positioning frame 2;
s5, taking the top surface of the bridge pile foundation 1 as a starting end, and marking a control line and a positioning control point in the circumferential direction, wherein the control line and the positioning control point are marked at the position, above the water surface, of the bridge pile foundation 1, and the position of the upper-layer lantern ring 21 of the positioning frame 2 is consistent with that of the control line; control line and location control point are marked around the pile foundation lateral wall at the processing top surface, will try hard to be above the surface of water and the intact position of bridge pile foundation to guarantee 2 holistic stability of locating rack, the length of being connected montant 23 between upper lantern ring 21 and the lower floor lantern ring 22 also need be confirmed according to the control line position of actual mark simultaneously, should not too long or too short, but the totality will guarantee that locating rack 2 can not rock and the landing after the suit is on bridge pile foundation 1.
S6, as shown in fig. 2 and 3, the measuring rod 3 is inserted into the measuring positioning ring 24 from top to bottom, because two measuring positioning rings 24 are arranged in the same direction, and a single measuring rod 3 vertically penetrates the upper and lower measuring positioning rings 24, so as to ensure that the measuring rod 3 can reach the bottom riverbed hard substrate of the bridge pile foundation 1 along the vertical direction, record the insertion depth of the measuring rod 3 and the data of the measuring positioning rings 24 with corresponding numbers, and arrange and draw a cross-sectional view according to the measuring data and the distance between the measuring positioning rings 24;
s7, lofting the steel casing 5 according to the measured data and the drawn section diagram, wherein the steel casing 5 is of a hollow circular structure and is formed by splicing two semicircular parts, the shape and the gradient of a riverbed hard substrate around the bridge pile foundation 1 are determined according to the depths of the measuring rods 3, the shape of the lower end of the steel casing 5 is further determined, and after lofting of the steel casing 5 is completed, differential cutting is performed on the bottom of the steel casing 5 to enable the bottom to be matched with the shape of the riverbed hard substrate, so that manufacturing of the steel casing 5 is completed.
S8, disassembling the positioning frame 2, treating and planting steel bars and other defects of the bridge pile foundation 1 such as corrosion and steel bar exposure, erecting an annular steel bar net cage 6 on the annular wall, hoisting the steel casing 5 after the steel bar net cage 6 is reliably fixed, assembling the steel casing 5 by hoisting a left semicircular part and a right semicircular part by using a double crane in the air in the project of reinforcing and repairing the extra-large bridge pile foundation in Jialing river, vertically welding and fixing the joint, trying to place the steel casing 5, placing the steel casing 5 according to the position of a positioning control point to ensure that the bottom of the steel casing 5 is matched with the shape of the bottom riverbed hard substrate of the bridge pile foundation 1, lifting the steel casing 5 to perform local cutting or welding if errors occur in the trying to place process, then hanging down again for installation, pouring underwater bottom sealing concrete after the steel casing 5 is placed, pumping the bridge between the bottom of the steel casing 5 and the steel pile foundation 1 after the bottom sealing concrete is finally set and reaches a certain strength, and then, pouring and filling the reinforcement mesh cage 6 by using self-compacting concrete, finishing the measurement and construction process of the whole pile foundation reinforcing structure after the concrete is solidified, and protecting and reinforcing the part of the bridge pile foundation 1 exposed in the river.
In different embodiments, because the depths of the damaged parts of different bridge pile foundations 1 from the hard bed base of the riverbed are different, the heights of the required reinforced structures of different bridge pile foundations 1 are also different, when the depth is larger, a plurality of steel casing cylinders 5 on the ground or under the water surface are required to be vertically connected according to the left side and the right side, then long semicircular parts formed by the left side and the right side are embraced on the bridge pile foundations 1 to be welded and then are put down, and the bottom end shape of the steel casing cylinder 5 at the lowest part is matched with the gradient and the shape of the hard bed base of the riverbed; a plurality of steel of ground or surface of water top protect a section of thick bamboo 5 and also by two semicircular part cohesion of mirror symmetry and form, the junction adopts vertical welded mode, will guarantee when the pile up neatly, between two steel of piling up from top to bottom protect a section of thick bamboo 5, the two vertical welding seam should misplace each other to guarantee the bulk strength after connecting.
According to the technical scheme, aiming at the construction environment with torrent rivers, the reinforcing and repairing structure for reinforcing the bridge pile foundation 1 and the measuring and construction method are set in a targeted manner, the existing bridge underwater pile foundation can cause more and more water loss damage under the continuous scouring action of water flow, the project for reinforcing the bridge pile foundation 1 is greatly increased, the reinforcing structure can be matched with the gradient and the shape of a hard substrate of a riverbed, the bridge pile foundation 1 is completely protected, the river scouring strength is high, and the construction is difficult.
The present invention has been described in terms of the preferred embodiment, and it is not intended to be limited to the embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a heterotypic section bridge pile foundation reinforced structure under water, mainly restores to consolidate the protection to the bridge pile foundation who is strikeed by the river, its characterized in that: the method is characterized in that a steel casing is sleeved around a bridge pile foundation, the shape of the lower end of the steel casing is matched with the gradient and the shape of a hard foundation of a riverbed at the bottom end of the bridge pile foundation, the steel casing is used as a permanent template, and self-compacting concrete is poured between the steel casing and the bridge pile foundation for reinforcement and protection.
2. The special-shaped underwater section bridge pile foundation reinforcing structure as claimed in claim 1, wherein the steel casing is formed by splicing at least two parts, and the splicing part is hermetically connected in a welding mode.
3. The special-shaped underwater section bridge pile foundation reinforcing structure as claimed in claim 2, wherein the cross section of the steel casing is a hollow circular structure and is formed by splicing two semicircular parts.
4. A measuring construction method of a special-shaped underwater section bridge pile foundation reinforcing structure is applicable to the reinforcing structure of any one of claims 1 to 3, is mainly used for measuring the size of the reinforcing structure and machining and installing the reinforcing structure, and specifically comprises the following steps:
s1, firstly, excavating the riverbed around the bridge pile foundation until a hard substrate is excavated, and laying a foundation for subsequent construction;
s2, measuring the size of a bridge pile foundation and manufacturing positioning frames, wherein each positioning frame is of a semicircular structure, the two positioning frames arranged in a left mirror image mode and a right mirror image mode are combined together through a connecting piece to form a ring-shaped closed whole, the bridge pile foundation is surrounded in the middle of the inner cavities of the two positioning frames, the positioning frames can be divided into an upper layer lantern ring layer and a lower layer lantern ring layer from top to bottom, limiting rings are arranged in the upper layer lantern ring layer and the lower layer lantern ring layer, and the upper layer lantern ring layer and the lower layer lantern ring layer are connected through connecting vertical rods to form an integrated structure;
s3, arranging a plurality of measuring positioning rings at equal intervals on the circumferences of an upper-layer lantern ring and a lower-layer lantern ring of the positioning frame in the clockwise direction, wherein the axes of the two measuring positioning rings of the upper-layer lantern ring and the lower-layer lantern ring at the same position vertically coincide;
s4, arranging an installation support around the bridge pile foundation to facilitate the movement of construction personnel, arranging an extension ring on the periphery of the lower lantern ring of the positioning frame to enable the extension ring to be erected on the installation support, and thus facilitating the installation of the positioning frame on the bridge pile foundation;
s5, taking the top surface of the bridge pile foundation as a starting end, and marking a control line and a positioning control point in the circumferential direction to enable the position of the upper-layer sleeve ring of the positioning frame to be consistent with that of the control line;
s6, inserting the measuring rods into the measuring positioning rings from top to bottom, vertically penetrating the upper and lower measuring positioning rings by a single measuring rod until the bottom of the measuring rod is contacted with the riverbed hard substrate at the bottom of the pier pile foundation, recording data of each measuring rod and each measuring positioning ring after measurement, and arranging and drawing the data into a section diagram;
s7, lofting the steel casing according to the measured data and the drawn section diagram, performing differential cutting on the bottom of the steel casing after lofting of the steel casing is completed, determining the shape of the lower end of the steel casing to be matched with the shape of the riverbed hard substrate, and completing manufacturing of the steel casing;
s8, disassembling the positioning frame, trial-placing the steel casing by adopting a crane mode, placing the steel casing according to the position of the positioning control point, sleeving the steel casing cover outside the annular wall of the bridge pile foundation, enabling the bottom of the steel casing to be matched with the shape of the hard base of the river bed at the bottom of the bridge pile foundation, pouring self-compacting concrete between the steel casing and the bridge pile foundation, completing the construction process of the whole pile foundation reinforcing structure, and reinforcing and protecting the part of the bridge pile foundation exposed in the river under scouring.
5. The measurement construction method of the special-shaped underwater section bridge pile foundation reinforcement structure according to claim 4, characterized in that in the step S3, the measurement positioning ring is of an annular structure with a through hole in the middle.
6. The measurement construction method of the special-shaped underwater section bridge pile foundation reinforcing structure according to claim 4, characterized in that in the step S2, the limiting ring and the upper layer lantern ring and the limiting ring and the lower layer lantern ring are connected through a connecting rod I, and the diameter of the limiting ring is equal to the diameter of the bridge pile foundation.
7. The measurement construction method of the special-shaped underwater section bridge pile foundation reinforcement structure according to claim 4, characterized in that the diameters of the upper lantern ring and the lower lantern ring are consistent with the diameter of the position where the steel casing is designed to be embedded, and the distance between the limiting ring and the upper lantern ring is the thickness of the concrete pouring layer.
8. The measurement construction method for the special-shaped underwater section bridge pile foundation reinforcement structure according to claim 7, wherein in the step S3, the positions of the plurality of measurement positioning rings are recorded in a numbering mode.
9. The measurement and construction method of the abnormal-shaped underwater section bridge pile foundation reinforcement structure according to claim 4, characterized in that in the step S8, after diseases such as corrosion and exposed ribs of the bridge pile foundation are treated and rib planting is performed, a reinforcement cage is erected on the wall of the ring, the steel casing is connected and fixed with the periphery of the reinforcement cage, underwater bottom sealing concrete is poured, after the bottom sealing concrete is finally set and reaches a certain strength, water is pumped out from a water pump to pump water stored between the bottom of the casing and the bridge pile foundation, and then self-compacting concrete is used for pouring and filling the reinforcement cage.
10. The measurement construction method of the special-shaped underwater section bridge pile foundation reinforcement structure according to claim 4, characterized in that in the step S8, when an error occurs in a trial-and-place process, the steel casing is lifted up, then is partially cut or welded, and then is lifted down again for installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210937380.6A CN115075236B (en) | 2022-08-05 | 2022-08-05 | Special-shaped underwater section bridge pile foundation reinforcing structure and measuring construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210937380.6A CN115075236B (en) | 2022-08-05 | 2022-08-05 | Special-shaped underwater section bridge pile foundation reinforcing structure and measuring construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115075236A true CN115075236A (en) | 2022-09-20 |
| CN115075236B CN115075236B (en) | 2024-07-23 |
Family
ID=83244072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210937380.6A Active CN115075236B (en) | 2022-08-05 | 2022-08-05 | Special-shaped underwater section bridge pile foundation reinforcing structure and measuring construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115075236B (en) |
Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU7200298A (en) * | 1997-05-07 | 1998-11-27 | Amog Technologies Pty Ltd | Repair of structural members |
| KR200387372Y1 (en) * | 2005-03-17 | 2005-06-17 | 주식회사 우진폼테크 | The underwater casing form |
| KR20060066836A (en) * | 2004-12-14 | 2006-06-19 | 한국도로공사 | A construction method for foundation which connected a column |
| JP2009114721A (en) * | 2007-11-06 | 2009-05-28 | Fudo Tetra Corp | Repair reinforcement structure of aquatic structure |
| JP2009264036A (en) * | 2008-04-28 | 2009-11-12 | East Japan Railway Co | Method for reinforcing bridge pier or the like |
| US20110318113A1 (en) * | 2009-02-12 | 2011-12-29 | Fraenkel Peter L | Installing submerged support structures |
| KR20130055512A (en) * | 2011-11-18 | 2013-05-28 | 주식회사 비앤비 | Water-proof dry-casing work table for repairing pier in the underwater |
| CN105091856A (en) * | 2015-07-22 | 2015-11-25 | 河海大学 | Shallow-basin riverbed microtopography measurement apparatus |
| WO2016008006A1 (en) * | 2014-07-14 | 2016-01-21 | Joinlock Pty Ltd | Jacket assembly |
| CN108363062A (en) * | 2018-05-15 | 2018-08-03 | 扬州大学 | A kind of pier subsidence hole detection device |
| CN108505529A (en) * | 2018-04-20 | 2018-09-07 | 中交第三航务工程局有限公司 | A kind of construction method of the bearing platform construction steel cofferdam of Through Steel case arch bridge |
| TW201920813A (en) * | 2017-09-22 | 2019-06-01 | 比利時商楊德諾公司 | Reusable offshore installation template and use thereof |
| CN110284515A (en) * | 2019-07-22 | 2019-09-27 | 中交路桥建设有限公司 | A kind of inclined uncovered rock riverbed pile base construction method |
| CN111270698A (en) * | 2020-03-31 | 2020-06-12 | 浙江交工集团股份有限公司 | Protective structure for exposed diseases of bridge pile foundation in sand-mining river channel in mountainous area and construction method of protective structure |
| CN211849654U (en) * | 2019-12-31 | 2020-11-03 | 浙江大学城市学院 | Bridge pile foundation reinforced structure |
| CN212896448U (en) * | 2020-04-14 | 2021-04-06 | 中国电建集团贵阳勘测设计研究院有限公司 | Scour prevention is bridge pile foundation structure under water |
| CN214005756U (en) * | 2020-11-17 | 2021-08-20 | 四川省交通建设集团股份有限公司 | Pier foundation scouring comprehensive treatment structure |
| CN215594074U (en) * | 2021-04-28 | 2022-01-21 | 中铁十六局集团第四工程有限公司 | Deepwater bearing platform abnormal Y-shaped pier construction cofferdam supporting structure |
| CN114319150A (en) * | 2021-12-13 | 2022-04-12 | 中交路桥建设有限公司 | Method for repairing and reinforcing damaged bridge piers in mountainous area wading section |
| CN216713084U (en) * | 2022-02-16 | 2022-06-10 | 创辉达设计股份有限公司 | Bridge pile foundation scour prevention reinforced structure |
-
2022
- 2022-08-05 CN CN202210937380.6A patent/CN115075236B/en active Active
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU7200298A (en) * | 1997-05-07 | 1998-11-27 | Amog Technologies Pty Ltd | Repair of structural members |
| KR20060066836A (en) * | 2004-12-14 | 2006-06-19 | 한국도로공사 | A construction method for foundation which connected a column |
| KR200387372Y1 (en) * | 2005-03-17 | 2005-06-17 | 주식회사 우진폼테크 | The underwater casing form |
| JP2009114721A (en) * | 2007-11-06 | 2009-05-28 | Fudo Tetra Corp | Repair reinforcement structure of aquatic structure |
| JP2009264036A (en) * | 2008-04-28 | 2009-11-12 | East Japan Railway Co | Method for reinforcing bridge pier or the like |
| US20110318113A1 (en) * | 2009-02-12 | 2011-12-29 | Fraenkel Peter L | Installing submerged support structures |
| KR20130055512A (en) * | 2011-11-18 | 2013-05-28 | 주식회사 비앤비 | Water-proof dry-casing work table for repairing pier in the underwater |
| WO2016008006A1 (en) * | 2014-07-14 | 2016-01-21 | Joinlock Pty Ltd | Jacket assembly |
| CN105091856A (en) * | 2015-07-22 | 2015-11-25 | 河海大学 | Shallow-basin riverbed microtopography measurement apparatus |
| TW201920813A (en) * | 2017-09-22 | 2019-06-01 | 比利時商楊德諾公司 | Reusable offshore installation template and use thereof |
| CN108505529A (en) * | 2018-04-20 | 2018-09-07 | 中交第三航务工程局有限公司 | A kind of construction method of the bearing platform construction steel cofferdam of Through Steel case arch bridge |
| CN108363062A (en) * | 2018-05-15 | 2018-08-03 | 扬州大学 | A kind of pier subsidence hole detection device |
| CN110284515A (en) * | 2019-07-22 | 2019-09-27 | 中交路桥建设有限公司 | A kind of inclined uncovered rock riverbed pile base construction method |
| CN211849654U (en) * | 2019-12-31 | 2020-11-03 | 浙江大学城市学院 | Bridge pile foundation reinforced structure |
| CN111270698A (en) * | 2020-03-31 | 2020-06-12 | 浙江交工集团股份有限公司 | Protective structure for exposed diseases of bridge pile foundation in sand-mining river channel in mountainous area and construction method of protective structure |
| CN212896448U (en) * | 2020-04-14 | 2021-04-06 | 中国电建集团贵阳勘测设计研究院有限公司 | Scour prevention is bridge pile foundation structure under water |
| CN214005756U (en) * | 2020-11-17 | 2021-08-20 | 四川省交通建设集团股份有限公司 | Pier foundation scouring comprehensive treatment structure |
| CN215594074U (en) * | 2021-04-28 | 2022-01-21 | 中铁十六局集团第四工程有限公司 | Deepwater bearing platform abnormal Y-shaped pier construction cofferdam supporting structure |
| CN114319150A (en) * | 2021-12-13 | 2022-04-12 | 中交路桥建设有限公司 | Method for repairing and reinforcing damaged bridge piers in mountainous area wading section |
| CN216713084U (en) * | 2022-02-16 | 2022-06-10 | 创辉达设计股份有限公司 | Bridge pile foundation scour prevention reinforced structure |
Non-Patent Citations (4)
| Title |
|---|
| 丘伟, 曾红华: "广韶线流溪河大桥的桥梁桩基加固补强方法", 广西交通科技, no. 04, pages 92 - 94 * |
| 文光斗等: "桥梁桩基脱空应急抢险综合处治技术研究", 科技资讯, no. 3, pages 62 - 64 * |
| 胡余勇;高文波;马超;: "单壁钢围堰在大潮差桥梁桩基加固中的应用", 城市道桥与防洪, no. 10, pages 114 - 117 * |
| 陈志敏等: "文物铆接钢桥——牛角沱嘉陵江大桥维修整治关键施工技术", 施工技术, vol. 48, pages 1064 - 1068 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115075236B (en) | 2024-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109487807B (en) | Steel pipe pile cofferdam hole leading and replacement construction method | |
| CN105133627B (en) | Construction under single wall steel sheet-pile cofferdam flowing water state | |
| CN103741657B (en) | The construction method of large-sized multifunction waterborne traffic accident | |
| CN109137998B (en) | Existing electric power pipe gallery protection structure crossing tunnel foundation pit and construction method thereof | |
| CN103243747B (en) | Deviation rectifying method of prestressed concrete pipe pile foundation | |
| CN110939303B (en) | Semi-reverse construction method of cyclone pool | |
| CN112575670B (en) | T-shaped rigid frame bridge suitable for tunnel to pass through giant karst cave and construction technology thereof | |
| CN105863042A (en) | All-steel structure building and construction method thereof | |
| CN105350526B (en) | Method for setting up steel platform | |
| CN110863520A (en) | Construction structure and method for reinforcing pile foundation by using pushing steel sleeve | |
| CN111779025A (en) | In-situ protection structure crossing foundation pit municipal pipe network box culvert and construction method | |
| CN104264683B (en) | Building concave shape ultra-deep foundation pit subregion supporting method is protected for three around literary composition | |
| CN114319396A (en) | Construction method of bottomless box cofferdam suitable for underwater complex geological conditions | |
| KR100937740B1 (en) | A method of constructing precast concrete house under water using caisson | |
| CN113529763A (en) | Method for constructing sea area shoal cushion cap by utilizing reinforced concrete combined steel cofferdam | |
| CN106245654A (en) | Deposited reinforced concrete pile exempts from inter-pile soil excavation construction method | |
| CN111733853A (en) | Tongue-and-groove type prefabricated underground continuous wall structure | |
| CN111576488A (en) | Sewage pipe jacking pipe construction fabricated working well structure and construction process | |
| CN111576446A (en) | In-situ protection device for pressure pipeline in underground foundation pit and construction method | |
| CN113774936A (en) | Floating transportation, positioning and sinking construction method for double-wall steel cofferdam with pile foundation firstly and cofferdam secondly | |
| CN106812131A (en) | A kind of permanent sheet pile underground structure and its construction method | |
| CN111350187A (en) | Template system suitable for large-diameter manual hole digging annular foundation pile and construction method | |
| CN115075236A (en) | Special-shaped underwater section bridge pile foundation reinforcing structure and measuring construction method | |
| KR20040039271A (en) | Shoe coffering method for new construction and repair, reinforcement of bridge open caisson foundation | |
| CN103334451A (en) | Underneath-passing channel formed between high-speed rail piers through secant pile walls and method thereof |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |