CN113638377B - Enclosure assembly type dry land repairing method for underwater concrete damage - Google Patents
Enclosure assembly type dry land repairing method for underwater concrete damage Download PDFInfo
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- CN113638377B CN113638377B CN202110939527.0A CN202110939527A CN113638377B CN 113638377 B CN113638377 B CN 113638377B CN 202110939527 A CN202110939527 A CN 202110939527A CN 113638377 B CN113638377 B CN 113638377B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/06—Placing concrete under water
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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Abstract
The invention discloses a fence equipment type underwater concrete damaged dry land repairing method, wherein fence type repairing equipment is arranged outside a concrete damaged surface, bottom combined water stopping is adopted to separate seepage, the damaged surface is independent from an external water body, and then water in the equipment is pumped and drained completely, so that a local dry land operation space can be formed, and further the damaged surface is thoroughly treated and repaired; the repairing device adopts an integral plate assembly type structure. The assembly type connecting structure is conveyed to a construction site in an land or water conveying mode, so that the conveying cost is greatly saved; the fabricated structure has better adaptability and practicability, can adapt to the damage forms of different sizes, and can create dry land environments of different sizes and adapt to different working environments by adjusting the number of the assembled plates according to the damage areas and the damage forms of the concrete bottom plates. 6 water stopping barriers are constructed by the bottom combined type water stopping, and the effect of stopping water at the bottom of concrete can be well achieved.
Description
Technical Field
The invention relates to a safety danger-removing reinforcing method for a hydraulic engineering hub, in particular to a fence assembly type underwater concrete damage dry land repairing method.
Background
The flood discharge and energy dissipation buildings of the hydraulic engineering mainly comprise overflow dams (channels), plunge ponds, discharge tunnels, hydraulic gates and the like, when the buildings run to discharge flood in hydropower stations, huge high-speed water flow impact force is borne, and concrete bottom plates of the buildings are very easy to be damaged by scouring, cavitation erosion, abrasion, vibration damage, bottom plate splitting, cracking and the like. After the bottom plate is damaged, huge water flow impact can continuously wash the building foundation, and the dam foundation can be directly damaged seriously. According to statistics, nearly 40% of flood discharge energy dissipation buildings of hydraulic engineering at home and abroad are damaged to different degrees, for example, energy dissipation protection facilities of hydropower stations such as Libby in the United states, wuqiangxi, fishponds, temples and the like in China are damaged once. In addition, in engineering practice, once the drainage structure is damaged, the drainage structure is a huge hidden danger to the safe operation of the whole hydraulic engineering, major safety accidents such as dam break and the like are easily caused along with continuous washing of the foundation, and the life and property safety of downstream cities and people are seriously threatened.
In the existing research and engineering practice, two repair methods are adopted for the damaged stilling pool bottom plate, one is dry-land operation repair, and the other is direct underwater repair. The two repair methods are mainly different in different repair environments and repair processes.
(1) For dry land operation repair, the current practice is to pump and drain water in the stilling pool to create a dry repair environment, so that workers can perform pretreatment and post repair on the bottom plate. The method has the advantages that the damaged part can be thoroughly treated, the reinforcing steel bars can be pre-supported in a dry environment, concrete can be poured, the repaired structure and the original structure can be integrated, and the method is firm and durable. However, this method has the disadvantage that the water in the stilling basin needs to be pumped out completely, which is time-consuming and costly.
(2) For direct underwater repair, the underwater concrete is manually submerged to a damaged surface to perform underwater treatment on the damaged surface, and then the damaged part is repaired by using underwater concrete.
The existing two repair technologies (dry land operation repair and direct underwater repair) have great defects. First, dry-field repairs require pumping all of the water in the stilling basin, which is extremely time consuming and costly. In addition, the direct underwater repair technology has high difficulty and high cost, the underwater operation has poor treatment effect on the damaged surface, and the underwater concrete has poor strength and durability, so that the repaired bottom plate has poor durability.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a method for repairing damaged dry land of barrier-assembled underwater concrete, and solves the problems of high dry land operation repairing cost, large difficulty of direct underwater repairing technology and poor treatment effect in the prior art.
A fence assembly type underwater concrete damaged dry land repairing method is characterized in that fence type repairing equipment is arranged outside a concrete damaged surface, bottom combined water stopping is matched, the damaged surface is independent from an external water body, water in the equipment is pumped and drained completely, a local dry land operation space can be formed, and further the damaged surface is thoroughly treated and repaired; the repairing device adopts an integral plate assembly type structure.
The repairing device mainly comprises a top guardrail, a top platform, an upper arc-shaped connecting plate, an upper rectangular connecting plate, a middle arc-shaped connecting plate, a middle rectangular connecting plate, a bottom arc-shaped connecting plate, a bottom rectangular connecting plate, a bottom apron plate, bottom combined water stop and a supporting cross beam, wherein the top guardrail, the top platform, the upper arc-shaped connecting plate, the upper rectangular connecting plate, the middle arc-shaped connecting plate, the middle rectangular connecting plate, the bottom arc-shaped connecting plate, the bottom rectangular connecting plate and the bottom combined water stop are sequentially connected, and the supporting cross beam is supported inside the repairing device and is arranged in a layered mode.
The repairing device is characterized in that an upper arc connecting plate, an upper rectangular connecting plate, a middle arc connecting plate and a middle rectangular connecting plate are of a structure that connecting plate steel plate walls are connected with a support truss, the height of the upper arc connecting plate is set to be 4-10m, the arc part is set to be a structure that a quarter of arc with the radius of 1m is connected with a long straight plate with the length of 1m, the height of the upper rectangular connecting plate is set to be 4-10m, and the width of the upper rectangular connecting plate is set to be 4-8m; the height of the middle arc-shaped connecting plate is set to be 4-10m, the arc-shaped part is set to be a quarter of arc with the radius of 1m, the height of the middle rectangular connecting plate is set to be 4-10m, and the width of the middle rectangular connecting plate is set to be 2-6m.
The upper arc-shaped connecting plate, the upper rectangular connecting plate, the middle arc-shaped connecting plate, the middle rectangular connecting plate, the bottom arc-shaped connecting plate and the bottom rectangular connecting plate are connected and assembled, the connecting plates adopt a flange and embedded connecting mode in the upper and lower layer directions, water stop sealing and bolt fastening are carried out between the plates, and the connecting plates adopt a welding process in the left and right directions.
The repairing device is characterized in that a hydraulic oil cylinder, a vertical water stop and a hydraulic oil cylinder supporting plate are arranged in the bottom arc-shaped connecting plate and the bottom rectangular connecting plate, and the hydraulic oil cylinder is uniformly distributed in the bottom arc-shaped connecting plate and the bottom rectangular connecting plate and is respectively connected with the vertical water stop and the hydraulic oil cylinder supporting plate.
The bottom combined water stop consists of a combined plane water stop and a vertical water stop, and the vertical water stop adopts a longitudinal telescopic mode; the combined plane water stop consists of P-type water stop rubber, first omega-type water stop rubber, second omega-type water stop rubber, first I-type water stop, second I-type water stop, a water stop pressing plate, an I-type water stop pressing plate and a water stop fastening bolt, and 5 water stop barriers are formed on the plane; the vertical water stop consists of a vertical water stop rubber soft head and vertical water stop rubber, and the vertical water stop rubber is driven by a hydraulic oil cylinder and can move up and down in the longitudinal direction. Thereby, 6 water-stop barriers are formed by the same.
The bottom apron board is connected with a counterweight coaming board, and the height of the counterweight coaming board is set to be 0.2-0.3m; the supporting cross beam is supported inside the repairing device.
And reinforcing rib plates are uniformly distributed outside the bottom arc-shaped connecting plate and the bottom rectangular connecting plate.
The fence assembly type dry land repairing method for underwater concrete damage specifically comprises the following steps:
(1) Detecting and identifying the project to be repaired, and determining parameters of damaged area and depth; determining the overall size of the required repairing equipment, further determining the number of the required plates, and formulating a corresponding assembly scheme; transporting the plates of the repair equipment to an engineering site needing repair;
(2) Hoisting and mounting the repairing equipment by adopting a mode of block hoisting, layered assembly, layered domination of a supporting beam and layered launching, wherein plates are connected with each other in a welding mode for a bottom connecting plate;
(3) After the repairing equipment is assembled and completely drained, a hydraulic oil cylinder is started, vertical water stopping is preliminarily compressed and adjusted, so that the equipment water stopping achieves better adaptation and attachment effects, water in the equipment is extracted through a water pump, the water pumping flow rate of the water pump and the water falling condition in the repairing equipment are observed in the water pumping process, the water seepage condition from the outside of the equipment to the inside of the equipment is converted, if the water seepage condition is still serious, the hydraulic oil cylinder is continuously started, the vertical water stopping is further compressed, if the water stopping effect cannot be achieved, a configuration block is additionally arranged on a skirt board at the bottom of the equipment, the whole weight of the equipment is increased, the combined type plane water stopping is further compressed, if the above method is adopted, the requirements cannot be met, water is injected into a truss structure of the repairing equipment, the self weight of the equipment is increased, the hydraulic oil cylinder is started again, the vertical water stopping is pressurized, so that the water stopping contact surface is further increased, after the water in the device is completely extracted, a dry construction environment is created, the equipment is kept still for 24 hours, the stress and deformation condition of the equipment is observed, and the safety of the device is ensured to be damaged and the potential hazards of repairing equipment are treated.
The enclosure assembly type dry land repair method for underwater concrete damage further comprises the following steps: after the repair is finished, detecting and accepting the treatment effect of the damaged surface; after acceptance check is qualified, fill water to repairing equipment to remove the counter weight on the skirtboard of bottom, extract the water in the truss, wait to equip in water and outside water flush after, lift by crane and equip, demolish work to equipment, adopt with the equipment when completely opposite mode: layered water discharging, layered dismantling of a supporting beam, layered dismantling and block hoisting.
Compared with the prior art, the invention or the beneficial effects of the invention are embodied in that:
1. the invention can realize local underwater dry land operation repair of the damaged underwater concrete bottom plate. The repair equipment forms a circle on the concrete damaged surface to enclose the fender, and collocation bottom combination formula stagnant water, with the damaged surface independent for external water, later will equip the water pump drainage in clean, can form a local dry land operation space, and then carry out thorough processing and restoration to the damaged surface, for traditional technique, convenient high efficiency more can effectively shorten construction period, reduce construction cost, and guarantee restoration quality.
2. The invention adopts an assembly structure, thereby facilitating long-distance transportation. The repair equipment adopts a plate type assembly process, plates are processed in a factory and then are transported to a construction site in a land or water transportation mode, so that the problem of difficulty in long-distance transportation can be well solved, and the transportation cost can be greatly saved; more importantly, the assembly type structure has better adaptability and practicability, can adapt to damage forms of different sizes, and can create dry land environments of different sizes and adapt to different working environments by adjusting the number of assembled plates according to the damage area and the form of the concrete bottom plate.
3. The combined water stopping structure design is adopted, the plane water stopping form and the vertical water stopping form are respectively and fully combined, the combined water stopping structure can be well attached to a concrete bottom plate, can fully adapt to the uneven bottom plate form, and has a good water stopping effect.
The invention does not need to pump all the water in the absorption basin, only needs to pump the water in the repair equipment, can realize the local dry-land operation of the damaged part in the absorption basin, can greatly shorten the construction period, reduce the construction cost, obtain good construction quality, remove danger and reinforce the hydraulic structure, and ensure the long-term safe operation of the hydraulic junction engineering.
Drawings
FIG. 1 is a front view of an apron-assembled underwater concrete damage dry land restoration device;
FIG. 2 is a side view of the apron-assembled underwater concrete damage dry land repair equipment;
FIG. 3 is a top view of the enclosure assembly type underwater concrete damage dry land repair equipment;
FIG. 4 is a sectional view of the fence-assembled underwater concrete damage dry land restoration device in elevation;
FIG. 5 isbase:Sub>A sectional view A-A of the enclosure assembly type underwater concrete damage dry land repairing equipment;
FIG. 6 is a sectional view of a B-B of the fence fabricated underwater concrete damage dry land restoration device;
FIG. 7 is a C-C section view of the apron-assembled underwater concrete damage dry land restoration equipment;
FIG. 8 is a partial enlarged view of the combined water stop structure;
FIG. 9 is a cross-sectional view of a bottom rectangular web;
FIG. 10 is a partial enlarged view of the plate joint;
FIG. 11 is a first view of a material transportation mode of the enclosure assembly type underwater concrete damage dry land restoration technology;
FIG. 12 is a second view of a material transportation mode of the enclosure assembly type underwater concrete damage dry land restoration technology;
FIG. 13 is a third view of a material transportation mode of the enclosure assembly type underwater concrete damage dry land restoration technology;
reference numbers in the figures: 1. fence fabricated underwater concrete damage dry land restoration equipment, 2 top fences, 3 top platforms, 4 upper arc-shaped connecting plates, 5 upper rectangular connecting plates, 6 flange-type plate connecting plates, 7 middle rectangular connecting plates, 8 middle arc-shaped connecting plates, 9 welded plate connecting joints, 10 bottom arc-shaped connecting plates, 11 bottom rectangular connecting plates, 12 reinforcing ribbed plates, 13 counterweight enclosing plates, 14 bottom apron plates, 15 bottom combined water stops, 16 welded apron plate connecting joints, 17 supporting cross beams, 18 connecting plate steel plate walls, 19 supporting trusses, 20 hydraulic cylinders, 21 combined plane water stops, 22 vertical water stops, 23 connecting bolts, 24 flange-type plate connecting joints, 25 vertical water stop rubber soft heads, 26 vertical water stop hard rubber, 27 hydraulic cylinder supporting plates, 28P type water stop rubber, 29 first omega-type water stop rubber, 30 water stop pressing plates, 31 second omega-type water stop rubber, 32 first I-type water stops, 33 second I-type water stop pressing plates, 34I-type pressing plates, 35 water stop fastening bolts, 36 water stops between plate blocks, 37 embedded fixed steel plates, 38 supporting plates, 39 supporting plates, 40 upper struts, 43, 42 upper concrete beam upper lifting beam, 42 lifting beam, lifting ship supporting frame, 46 lifting ship lifting floor boards, and lifting ship lifting floor boards.
Detailed Description
As shown in fig. 1 and 2, the enclosure assembly type underwater concrete damage dry land restoration equipment 1 is formed by sequentially connecting a guardrail 2, a top platform 3, an upper arc-shaped connecting plate 4, an upper rectangular connecting plate 5, a middle arc-shaped connecting plate 8, a middle rectangular connecting plate 7, a bottom arc-shaped connecting plate 10, a bottom rectangular connecting plate 11 and a bottom combined water stop 15, wherein a counterweight enclosure plate 13 is connected to a bottom apron plate 14, and reinforcing rib plates 12 are uniformly distributed outside the bottom arc-shaped connecting plate 10 and the bottom rectangular connecting plate 11 so as to improve the overall strength and the pressure resistance of the equipment; the height of the upper arc-shaped connecting plate 4 is set to be 4-10m, the arc-shaped part is set to be a structure that a quarter of arc with the radius of 1m is connected with a long straight plate with the length of 1m, the height of the upper rectangular connecting plate 5 is set to be 4-10m, and the width is set to be 4-8m; the height of the middle arc-shaped connecting plate 8 is set to be 4-10m, the arc-shaped part is set to be a quarter of arc with the radius of 1m, the height of the middle rectangular connecting plate 7 is set to be 4-10m, and the width is set to be 2-6m; the connecting plate adopts a flange and embedded connection mode in the upper-layer and lower-layer directions, water stop 36 between the plates is used for sealing and is fastened by bolts 23, and the connecting plate adopts a welding process in the left-right direction, so that the integrity is improved.
As shown in fig. 3 and 4, a guardrail 2 and a top platform 3 are arranged at the top of the enclosure assembly type underwater concrete damage dry land repairing equipment 1 for related personnel to walk or facilitate observation operation and the like; and the supporting beams 17 are arranged in layers in the inner part, and the number of the supporting beams is determined according to the size of the equipment, so that the aim of meeting the overall safety and stability of the equipment is fulfilled.
As shown in fig. 4, 5 and 6, the upper arc-shaped connecting plate 4, the upper rectangular connecting plate 5, the middle arc-shaped connecting plate 8 and the middle rectangular connecting plate 7 are of a structure that the connecting plate steel plate walls 18 are connected with the supporting truss 19, and the materials of the connecting plate steel plate walls 18 and the supporting truss 19 include, but are not limited to, carbon steel, stainless steel and the like.
As shown in fig. 7 and 8, the bottom arc-shaped connecting plate 10 and the bottom rectangular connecting plate 11 are respectively provided with a hydraulic cylinder 20, a vertical water stop 22 and a hydraulic cylinder supporting plate 27, the hydraulic cylinders 20 are uniformly distributed inside the bottom arc-shaped connecting plate 10 and the bottom rectangular connecting plate 11, and are respectively connected with the vertical water stop 22 and the hydraulic cylinder supporting plate 27.
As shown in fig. 9, the combined plane water stop 21 is composed of a P-type water stop rubber 28, a first omega-type water stop rubber 29, a second omega-type water stop rubber 31, a first I-type water stop 32, a second I-type water stop 33, a water stop pressing plate 30, an I-type water stop pressing plate 34 and a water stop fastening bolt 35, and 5 water stop barriers are formed on a plane, so that the infiltration of water flow is reduced to the maximum extent, and a good water stop effect is achieved. The vertical water stop 22 consists of a vertical water stop rubber soft head 25 and a vertical water stop rubber 26, is driven by the hydraulic oil cylinder 20, can move up and down longitudinally, can well adapt to various conditions of a concrete bottom plate, and improves the whole adaptability and water stop effect of the equipment.
As shown in fig. 10, the connecting plate adopts a flange and embedded connection mode in the upper and lower interlayer directions, water stop 36 between plates is used for sealing and bolts 23 are used for fastening, and the embedded fixing steel plate 37 increases the structural integrity and the connection stability.
As shown in fig. 11, 12 and 13, the construction schemes of the fabricated underwater repair personnel, equipment and material lifting include, but are not limited to, the following three:
(1) erecting an onshore support frame 41 and a hanging beam 42 at two sides of the plunge pool, and then hoisting equipment required by underwater repair construction by using a crane 43 to enter a dry land construction range;
(2) a shore support frame 41 is erected on one side of the plunge pool, an upper support frame 46 of the other device is erected on the underwater repairing device, and construction equipment required by hoisting is lifted by using a hoisting beam 42 and a crane 43 to enter a dry land construction range;
(3) the supporting frames 46 are arranged on the two sides of the supporting hanging beam and are erected on the underwater repairing device, and the construction equipment is hung into the repairing device through the hanging beam 42 and the crane 43.
The technical overall steps of the invention are as follows:
(1) Preparation work in the early stage of repair:
(1) the existing detection equipment is adopted to detect and identify the project to be repaired in advance, determine parameters such as damaged area, depth and the like, and know the field situation in a stepping mode;
(2) determining the overall size of the required repairing equipment according to the detection result, further determining the number of the required plates, and formulating a corresponding assembly scheme;
(3) and after the scheme is determined, the plates of the repairing device are transported to an engineering site needing repairing, and corresponding arrangement work of the site is carried out.
(2) Repairing site construction work:
(1) erecting a supporting beam, a hanging beam, a crane and the like on both banks under the condition that the conditions on both banks are allowed so as to provide conditions for hoisting the repairing equipment, and hoisting the repairing equipment by adopting a crane ship hoisting mode if the conditions on both banks are not allowed;
(2) hoisting and mounting the repairing equipment in a manner of block hoisting, layered assembly, layered control of a supporting beam and layered launching, wherein plates are connected with each other in a welding manner for a bottom connecting plate, the bottom connecting plate is partially sunk into water after the bottom connecting plate is connected, then a middle connecting plate is hoisted, is connected with the bottom connecting plate through a bolt fastening flange and an embedded manner and is welded with the middle connecting plate, the middle connecting plate is partially sunk into the water after the middle connecting plate is connected, and then the steps are repeated for a top connecting plate;
(3) after the repair equipment is assembled and completely launched, the hydraulic oil cylinder 20 is started, the vertical water stop 22 is preliminarily compressed, adjusted and compressed, so that the equipment water stop achieves good adaptation and attachment effects, water in the equipment is extracted through the water pump, the water pumping flow rate of the water pump and the water falling condition in the repair equipment are observed in the water pumping process, the water seepage condition from the outside of the equipment to the inside of the equipment is calculated out, if the water seepage condition is still serious, the hydraulic oil cylinder 20 is continuously started, the vertical water stop 22 is further compressed, if the water stopping effect cannot be achieved, a configuration block is additionally arranged on an apron board at the bottom of the equipment, the overall weight of the equipment is increased, the combined type plane water stop 21 is further compressed, if the requirements cannot be met by adopting the mode, water is injected into a truss structure of the repair equipment, the self weight of the equipment is increased, the hydraulic oil cylinder is started again, the vertical water stop 22 is pressurized, so that the water contact surface is further increased, after the water in the device is completely extracted, the construction environment of a dry land is created, the equipment is kept stand still for 24 hours, the stress and deformation condition of the equipment is observed, the safety hazard is ensured, and the potential safety hazard is not exist, and the repair equipment is treated, and the potential hazards are further.
(3) And (3) repairing completion acceptance work:
(1) after the repair is finished, detecting and accepting the treatment effect of the damaged surface;
(2) after acceptance check is qualified, fill water to repairing equipment to remove the counter weight on the bottom skirtboard 14, extract the water in the truss, wait to equip water and outside water flush after, lift by crane equipment, demolish work to equipment, adopt with the equipment time totally opposite mode: layered water discharging, layered dismantling of a supporting beam, layered dismantling and block hoisting.
The method or arrangement used in the above-mentioned devices is not limited to a certain method or arrangement, and any other technique that can apply the principle of the present invention or change the method or arrangement used in the above-mentioned devices based on the present invention is within the technical scope of the present system and the protection scope of the present patent.
Claims (5)
1. A fence assembly type underwater concrete damaged dry land repairing method is characterized in that a circle of repairing equipment is arranged on a concrete damaged surface, the damaged surface is independent from an external water body, water in the equipment is pumped and drained completely, a local dry land operation space can be formed, and further the damaged surface is thoroughly treated and repaired; the repairing equipment adopts an integral plate assembly type structure;
the repairing device mainly comprises a top guardrail, a top platform, an upper arc-shaped connecting plate, an upper rectangular connecting plate, a middle arc-shaped connecting plate, a middle rectangular connecting plate, a bottom arc-shaped connecting plate, a bottom rectangular connecting plate, a bottom apron plate, a bottom combined water stop and a supporting cross beam, wherein the top guardrail, the top platform, the upper arc-shaped connecting plate, the upper rectangular connecting plate, the middle arc-shaped connecting plate, the middle rectangular connecting plate, the bottom arc-shaped connecting plate, the bottom rectangular connecting plate and the bottom combined water stop are sequentially connected, and the supporting cross beam is supported inside the repairing device and is arranged in a layered mode;
the bottom arc-shaped connecting plate and the bottom rectangular connecting plate of the repairing device are internally provided with a hydraulic oil cylinder, a vertical water stop and a hydraulic oil cylinder supporting plate, and the hydraulic oil cylinders are uniformly distributed inside the bottom arc-shaped connecting plate and the bottom rectangular connecting plate and are respectively connected with the vertical water stop and the hydraulic oil cylinder supporting plate;
the repairing device is characterized in that an upper arc connecting plate, an upper rectangular connecting plate, a middle arc connecting plate and a middle rectangular connecting plate are of a structure that connecting plate steel plate walls are connected with a support truss, the height of the upper arc connecting plate is set to be 4-10m, the arc part is set to be a structure that a quarter of arc with the radius of 1m is connected with a long straight plate with the length of 1m, the height of the upper rectangular connecting plate is set to be 4-10m, and the width of the upper rectangular connecting plate is set to be 4-8m; the height of the middle arc-shaped connecting plate is set to be 4-10m, the arc-shaped part is set to be a quarter of arc with the radius of 1m, the height of the middle rectangular connecting plate is set to be 4-10m, and the width of the middle rectangular connecting plate is set to be 2-6m;
the upper arc-shaped connecting plate, the upper rectangular connecting plate, the middle arc-shaped connecting plate, the middle rectangular connecting plate, the bottom arc-shaped connecting plate and the bottom rectangular connecting plate are connected and assembled, the connecting plates adopt a flange and embedded connecting mode in the upper and lower layer directions, water stop sealing and bolt fastening are carried out between plates, and the connecting plates adopt a welding process in the left and right directions;
the bottom combined water stop consists of a combined plane water stop and a vertical water stop, and the vertical water stop adopts a longitudinal telescopic mode; the combined plane water stop consists of P-type water stop rubber, first omega-type water stop rubber, second omega-type water stop rubber, first I-type water stop, second I-type water stop, a water stop pressing plate, an I-type water stop pressing plate and a water stop fastening bolt, and 5 water stop barriers are formed on the plane; the vertical water stop consists of a vertical water stop rubber soft head and vertical water stop rubber, and is driven by a hydraulic oil cylinder to move up and down longitudinally.
2. The repair method according to claim 1, characterized in that: the bottom apron board is connected with a counterweight enclosing plate, and the height of the counterweight enclosing plate is set to be 0.2-0.3m; the supporting beams are supported inside the repairing equipment and are arranged in layers.
3. The repair method according to claim 1, characterized in that: and reinforcing rib plates are uniformly distributed outside the bottom arc-shaped connecting plate and the bottom rectangular connecting plate.
4. The method for repairing the dam assembly type underwater concrete damage in the dry land according to claim 1 is characterized by comprising the following steps:
(1) Detecting and identifying the project to be repaired, and determining parameters of damaged area and depth; determining the overall size of required repairing equipment, further determining the number of required plates, and formulating a corresponding assembly scheme; transporting the plates of the repair equipment to an engineering site needing repair;
(2) Hoisting and mounting the repairing equipment in a manner of block hoisting, layered assembly, layered control of a supporting beam and layered launching, wherein plates are connected with each other in a welding manner for a bottom connecting plate, the bottom connecting plate is partially sunk into water after the bottom connecting plate is connected, then a middle connecting plate is hoisted, is connected with the bottom connecting plate through a bolt fastening flange and an embedded manner and is welded with the middle connecting plate, the middle connecting plate is partially sunk into the water after the middle connecting plate is connected, and then the steps are repeated for a top connecting plate;
(3) After the repairing equipment is assembled and completely drained, a hydraulic oil cylinder is started, vertical water stopping is preliminarily compressed and adjusted, so that the equipment water stopping achieves better adaptation and attachment effects, water in the equipment is extracted through a water pump, the water pumping flow rate of the water pump and the water falling condition in the repairing equipment are observed in the water pumping process, the water seepage condition from the outside of the equipment to the inside of the equipment is converted, if the water seepage condition is still serious, the hydraulic oil cylinder is continuously started, the vertical water stopping is further compressed, if the water stopping effect cannot be achieved, a configuration block is additionally arranged on a skirt board at the bottom of the equipment, the whole weight of the equipment is increased, the combined type plane water stopping is further compressed, if the above method is adopted, the requirements cannot be met, water is injected into a truss structure of the repairing equipment, the self weight of the equipment is increased, the hydraulic oil cylinder is started again, the vertical water stopping is pressurized, so that the water stopping contact surface is further increased, after the water in the device is completely extracted, a dry construction environment is created, the equipment is kept still for 24 hours, the stress and deformation condition of the equipment is observed, and the safety of the device is ensured to be damaged and the potential hazards of repairing equipment are treated.
5. The fence fabricated underwater concrete damage dry-land restoration method according to claim 1, further comprising completion acceptance work: after the repair is finished, detecting and accepting the treatment effect of the damaged surface; after acceptance check is qualified, fill water to the repair equipment enclosure space to remove the counter weight on the skirtboard of bottom, extract the water in the truss, wait to equip in water and outside water flush after, lift by crane the equipment, demolish work to the equipment, adopt with the equipment when completely opposite mode: layered water discharging, layered dismantling of a supporting beam, layered dismantling and block hoisting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110939527.0A CN113638377B (en) | 2021-08-16 | 2021-08-16 | Enclosure assembly type dry land repairing method for underwater concrete damage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110939527.0A CN113638377B (en) | 2021-08-16 | 2021-08-16 | Enclosure assembly type dry land repairing method for underwater concrete damage |
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| Publication Number | Publication Date |
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| CN113638377A CN113638377A (en) | 2021-11-12 |
| CN113638377B true CN113638377B (en) | 2022-11-08 |
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