CN113638377A - Enclosure equipment type dry land repairing method for underwater concrete damage - Google Patents
Enclosure equipment type dry land repairing method for underwater concrete damage Download PDFInfo
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- CN113638377A CN113638377A CN202110939527.0A CN202110939527A CN113638377A CN 113638377 A CN113638377 A CN 113638377A CN 202110939527 A CN202110939527 A CN 202110939527A CN 113638377 A CN113638377 A CN 113638377A
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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
- Y02E10/20—Hydro energy
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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 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 and reinforcing method for a hydraulic engineering hub, in particular to a fence-equipped underwater concrete damage dry land repairing method.
Background
The flood discharge energy dissipation buildings of the hydraulic engineering mainly comprise overflow dams (roads), plunge pools, discharge tunnels, hydraulic gates and the like, bear huge high-speed water flow impact force when a hydropower station runs to discharge flood, and a concrete bottom plate of the buildings is 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, such as Libby in the United states, Sayano-Shushenskaya in Russia, and energy dissipation protection facilities of hydropower stations such as Wuqiangxi, fish ponds, temples and the like in China are damaged. In engineering practice, once the drainage structure is damaged, the safety operation of the whole hydraulic engineering is a huge hidden danger, major safety accidents such as dam break and the like are easily caused along with continuous scouring of the foundation, and the life and property safety of downstream cities and people is seriously threatened.
In the existing research and engineering practice, two repairing modes are adopted for the damaged stilling pool bottom plate, one mode is dry-land operation repairing, and the other mode is direct underwater repairing. 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 completely pumped out, 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 types of 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 fence equipment type method for repairing damaged underwater concrete dry land, and solves the problems of high dry land operation repairing cost, large difficulty in direct underwater repairing technology and poor treatment effect in the prior art.
A fence 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 independently discharged relative to 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 stopping 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 stopping 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 4-8 m; 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 2-6 m.
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 0.2-0.3 m; the supporting beams are supported inside the repairing equipment and are arranged in layers.
And reinforcing rib plates are uniformly distributed outside the bottom arc-shaped connecting plate and the bottom rectangular connecting plate.
The enclosure equipment 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 repair equipment is assembled and completely enters water, the hydraulic oil cylinder is started, the vertical water stop is initially compressed and regulated and compressed, so that the equipment water stop achieves better 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 further converted, if the water seepage condition is still serious, the hydraulic oil cylinder is continuously started, the vertical water stop is further compressed, if the water stop effect cannot be achieved, a configuration block is additionally arranged on an apron board at the bottom of the equipment, the whole weight of the equipment is increased, the combined type plane water stop is further compressed, if the mode is adopted, the requirement cannot be met, water is injected into a truss structure of the repair equipment, the self weight of the equipment is increased, and the hydraulic oil cylinder is started again, and pressurizing vertical water stopping to further increase the water stopping contact surface, creating a dry construction environment after water in the device is completely extracted, standing the device in water for 24 hours, observing the stress and deformation conditions of the device, and entering personnel and equipment to the field to perform treatment and repair work on the damaged surface after ensuring that the device is safe and has no hidden trouble.
The enclosure equipment 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 the space that the repair equipment encloses to remove counter weight on the bottom skirtboard, extract the water in the truss, wait to equip 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.
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 keep off to collocation bottom combination formula stagnant water is independently come out the damaged surface for external water, later will equip the water pump drainage in clean, can form a local dry land operation space, and then carries 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 equipment type structure, thereby facilitating long-distance transportation. The repairing equipment adopts a plate type assembling 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 equipment 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 the assembled plates according to the damage areas and the damage forms of the concrete bottom plates.
3. The invention adopts a combined water stopping structure design, fully combines a plane water stopping form and a vertical water stopping form respectively, can be well jointed with a concrete bottom plate, can be fully adapted to an uneven bottom plate form, has good water stopping effect, and can be adjusted by a hydraulic oil cylinder to adapt to special conditions such as pits, gullies, small cracks and the like on the concrete bottom plate, thereby improving the water stopping effect on the concrete bottom plate.
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 a fence-equipped underwater concrete damage dry land restoration equipment;
FIG. 2 is a side view of the apron-equipped underwater concrete damage dry land restoration equipment;
FIG. 3 is a top view of the enclosure-equipped underwater concrete damage dry land restoration equipment;
FIG. 4 is a sectional view of an elevation of the apron-equipped underwater concrete damage dry land restoration equipment;
FIG. 5 is a partial enlarged view of the combined water stopping structure;
FIG. 6 is a cross-sectional view of a bottom rectangular web;
FIG. 7 is a partial enlarged view of the joint of the plates;
FIG. 8 is a sectional view A-A of the enclosure-equipped underwater concrete damage dry land restoration equipment;
FIG. 9 is a sectional view of a B-B enclosure-equipped underwater concrete damage dry land restoration device;
FIG. 10 is a C-C section view of the apron-equipped underwater concrete damage dry land restoration equipment;
FIG. 11 is a first view of a material transportation mode of the enclosure equipment type underwater concrete damage dry land restoration technology;
FIG. 12 is a second view of a material transportation mode of the enclosure equipment type underwater concrete damage dry land restoration technology;
FIG. 13 is a third view of a material transportation mode of the enclosure equipment type underwater concrete damage dry land restoration technology;
reference numbers in the figures: 1 fencing equipment type underwater concrete damage dry land repairing equipment, 2 top fence, 3 top platform, 4 upper arc connecting plate, 5 upper rectangle connecting plate, 6 flange type plate connecting plate, 7 middle rectangle connecting plate, 8 middle arc connecting plate, 9 welding type plate connecting seam, 10 bottom arc connecting plate, 11 bottom rectangle connecting plate, 12 reinforcing rib plate, 13 balance weight coaming plate, 14 bottom apron plate, 15 bottom combined water stop, 16 welding type apron plate connecting seam, 17 supporting beam, 18 connecting plate steel plate wall, 19 supporting truss, 20 hydraulic cylinder, 21 combined type plane water stop, 22 vertical water stop, 23 connecting bolt, 24 flange type plate connecting seam, 25 vertical water stop rubber soft head, 26 vertical water stop hard rubber, 27 hydraulic cylinder supporting plate, 28P type water stop rubber, 29 first omega type water stop rubber, 30 water stop pressing plate, 31 second omega-shaped water stop rubber, 32 first I-shaped water stop, 33 second I-shaped water stop, 34I-shaped water stop pressing plates, 35 water stop fastening bolts, 36 inter-plate water stop, 37 embedded fixing steel plates, 38 cross beam supporting plates, 39 cross beam rib plates, 40 cross beam supports, 41 shore-up supporting frames, 42 hanging beams, 43 cranes, 44 stilling pool bank slopes, 45 concrete bottom plates, 46 equipment supporting frames and 47 transport ships.
Detailed Description
As shown in fig. 1 and 2, the enclosure equipment 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 4-8 m; 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 2-6 m; the connecting plate adopts a flange and embedded connection mode in the upper-layer and lower-layer directions, water stop 36 between 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 equipment 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 arranged 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 the 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 equipment type underwater repair personnel, equipment and material lifting include, but are not limited to, the following three:
firstly, erecting an onshore support frame 41 and a hanging beam 42 at two sides of a plunge pool, and then hoisting equipment required by underwater repair construction into a dry land construction range by utilizing a crane 43;
erecting an onshore support frame 41 on one side of the plunge pool, erecting an upper support frame 46 of the other device on the underwater restoration device, and entering a dry land construction range by using construction equipment required by hoisting by using a hoisting beam 42 and a crane 43;
and thirdly, supporting frames 46 are arranged on two sides of the supporting hanging beam and are erected on the underwater repairing equipment, and the construction equipment is hung into the repairing equipment by using the hanging beam 42 and the crane 43.
The method comprises the following steps:
(1) preparation work in the early stage of repair:
firstly, detecting and identifying projects needing to be repaired in advance by adopting the existing detection equipment, determining parameters such as damaged areas, depths and the like, and knowing the field situation in a reconnaissance mode;
determining the whole size of the required repairing equipment according to the detection result, further determining the number of the required plates, and making a corresponding assembly scheme;
and thirdly, 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:
firstly, erecting a supporting beam, a hanging beam, a crane and the like on two banks under the condition that the conditions on the two banks are allowed so as to provide conditions for hoisting the repairing equipment, and if the conditions on the two banks are not allowed, hoisting the repairing equipment by adopting a hoisting ship;
hoisting and mounting the repairing equipment, wherein the hoisting and mounting are carried out in a manner of block hoisting, layered assembly, layered domination of supporting beams and layered launching, 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 connection of the bottom connecting plate is completed, then a middle connecting plate is hoisted, is connected with the bottom connecting plate through a bolt fastening flange and an embedded type and is welded with the middle connecting plate, the middle connecting plate is partially sunk into the water after the connection of the middle connecting plate is completed, and then the steps are repeated for a top connecting plate;
thirdly, after the repairing equipment is assembled and completely launched, starting the hydraulic oil cylinder 20, preliminarily compressing and adjusting and compressing the vertical water stop 22 to enable the water stop of the equipment to achieve better adaptation and attachment effects, then extracting water in the equipment through a water pump, observing the water pumping flow rate of the water pump and the water descending condition in the repairing equipment in the water pumping process, further converting the water seepage condition of the equipment from the outside to the inside of the equipment, if the water seepage condition is still serious, continuing to start the hydraulic oil cylinder 20, further compressing the vertical water stop 22, if the water stop effect cannot be achieved, adding a configuration block on an apron board at the bottom of the equipment to increase the whole weight of the equipment, further compressing the combined plane water stop 21, if the above mode still cannot meet the requirements, injecting water into a truss structure of the repairing equipment to increase the equipment dead weight, and starting the hydraulic oil cylinder again, and pressurizing the vertical water stop 22 to further increase the contact surface of the water stop, creating a construction environment of a dry land after the water in the device is completely extracted, standing the device in the water for 24 hours, observing the stress and deformation conditions of the device, and entering personnel and equipment to the field to perform treatment and repair work on the damaged surface after the device is ensured to be safe and free of hidden danger.
(3) And (3) repairing completion acceptance work:
firstly, after the repair is finished, detecting and accepting the treatment effect of the damaged surface;
secondly, after the inspection and acceptance are qualified, filling water into the repairing equipment, removing the balance weight on the apron board 14 at the bottom, extracting the water in the truss, lifting the equipment after the water in the equipment is level with the external water, and dismantling the equipment by adopting a mode completely opposite to that in the assembling process: 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 (10)
1. A fence 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.
2. The repair method according to claim 1, characterized in that: 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 stopping 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 stopping are sequentially connected, and the supporting cross beam is supported inside the repairing device and is arranged in a layered mode.
3. The repair method according to claim 2, characterized in that: 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 4-8 m; 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 2-6 m.
4. The repair method according to claim 2, characterized in that: 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.
5. The repair method according to claim 2, characterized in that: 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.
6. The repair method according to claim 2, characterized in that: 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 in the longitudinal direction; thereby, 6 water-stop barriers are formed by the same.
7. The repair method according to claim 2, characterized in that: the bottom apron board is connected with a counterweight coaming board, and the height of the counterweight coaming board is set to be 0.2-0.3 m; the supporting beams are supported inside the repairing equipment and are arranged in layers.
8. The repair method according to claim 2, characterized in that: and reinforcing rib plates are uniformly distributed outside the bottom arc-shaped connecting plate and the bottom rectangular connecting plate.
9. The method for repairing the damage of the fence-equipped underwater concrete 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 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 repair equipment is assembled and completely enters water, the hydraulic oil cylinder is started, the vertical water stop is initially compressed and regulated and compressed, so that the equipment water stop achieves better 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 further converted, if the water seepage condition is still serious, the hydraulic oil cylinder is continuously started, the vertical water stop is further compressed, if the water stop effect cannot be achieved, a configuration block is additionally arranged on an apron board at the bottom of the equipment, the whole weight of the equipment is increased, the combined type plane water stop is further compressed, if the mode is adopted, the requirement cannot be met, water is injected into a truss structure of the repair equipment, the self weight of the equipment is increased, and the hydraulic oil cylinder is started again, and pressurizing vertical water stopping to further increase the water stopping contact surface, creating a dry construction environment after water in the device is completely extracted, standing the device in water for 24 hours, observing the stress and deformation conditions of the device, and entering personnel and equipment to the field to perform treatment and repair work on the damaged surface after ensuring that the device is safe and has no hidden trouble.
10. The method for dryland restoration of underwater concrete damage equipped on fencing of claim 1, further comprising as-built 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 space that repair equipment encloses to remove counter weight on the bottom skirtboard, extract the water in the truss, treat after water in the equipment flushes with outside water, lift by crane the equipment, demolish work to the equipment, adopt and the equipment time totally 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113638377A true CN113638377A (en) | 2021-11-12 |
| CN113638377B CN113638377B (en) | 2022-11-08 |
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| CN114657948A (en) * | 2022-03-17 | 2022-06-24 | 天津大学 | Intelligent water stopping method suitable for dry basement cabin repairing equipment |
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| CN101245603A (en) * | 2008-01-23 | 2008-08-20 | 中国水利水电科学研究院 | Floating arch cofferdam and construction method |
| CN108951608A (en) * | 2018-07-23 | 2018-12-07 | 博纳德（天津）港口工程有限公司 | Reinforce Diaphragm Wall Wharf underwater concrete structure construction engineering method |
| CN110565665A (en) * | 2019-09-18 | 2019-12-13 | 河南省水利勘测设计研究有限公司 | Construction method for repairing channel side slope without water cut based on canopy type cofferdam |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101245603A (en) * | 2008-01-23 | 2008-08-20 | 中国水利水电科学研究院 | Floating arch cofferdam and construction method |
| CN108951608A (en) * | 2018-07-23 | 2018-12-07 | 博纳德（天津）港口工程有限公司 | Reinforce Diaphragm Wall Wharf underwater concrete structure construction engineering method |
| CN110565665A (en) * | 2019-09-18 | 2019-12-13 | 河南省水利勘测设计研究有限公司 | Construction method for repairing channel side slope without water cut based on canopy type cofferdam |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114657948A (en) * | 2022-03-17 | 2022-06-24 | 天津大学 | Intelligent water stopping method suitable for dry basement cabin repairing equipment |
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