CN114892669A - Simple device and method for pouring underwater bottom sealing concrete - Google Patents
Simple device and method for pouring underwater bottom sealing concrete Download PDFInfo
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- CN114892669A CN114892669A CN202210651105.8A CN202210651105A CN114892669A CN 114892669 A CN114892669 A CN 114892669A CN 202210651105 A CN202210651105 A CN 202210651105A CN 114892669 A CN114892669 A CN 114892669A
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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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- 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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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention particularly relates to a simple device and a simple method for pouring underwater bottom sealing concrete, belongs to the technical field of civil engineering construction, and well solves the problems of large investment, high cost, heavy equipment, large workload and high error rate caused by insufficient first-batch concrete in the prior method. The concrete pump truck is used for directly pouring concrete into the guide pipe with the rubber ball serving as the piston from the top end gradually, water in the guide pipe is extruded by the weight of the concrete pump truck to slowly sink to the bottom opening of the guide pipe, and other simple measures are adopted to prevent the water from entering the guide pipe from the bottom opening and finally complete the purpose of pouring all the bottom-sealed concrete. The device comprises a guide pipe, a joint, a balance weight, a rubber ball piston and a hanger.
Description
Technical Field
The invention belongs to the technical field of civil engineering construction, and particularly relates to a simple device and a simple method for underwater back cover concrete pouring.
Background
In civil engineering, engineering such as cofferdams, open caisson and the like is frequently involved, underwater concrete bottom sealing is needed, a vertical guide pipe method is generally adopted at present, and a plurality of guide pipes are adopted for simultaneous or sequential pouring when the area is large.
Vertically placing steel guide pipes with the inner diameter of 26-32cm into each subarea, wherein the distance between the guide pipe openings and the base surface is 20-30 cm; the top of the conduit is connected with a funnel provided with a valve; the funnel is provided with a chute which is connected with a concrete storage bin with a certain capacity. Before pouring, the funnel and the storage bin are filled with concrete, after all preparation works are done, the funnel valve and the storage bin door are opened, air and water in the guide pipe are quickly discharged from the guide pipe opening under the heavy pressure of a large amount of poured concrete, the concrete is flushed to the substrate through the guide pipe in a short time, a flat concrete cone is piled around the guide pipe, and the bottom opening of the guide pipe is buried. And continuously pouring concrete into the funnel until the concrete surface of the base reaches the required elevation. In the process, equipment such as a crane, a concrete pump truck and the like is needed.
The key point of the process is that the quantity of concrete in the storage bin is sufficient, and the first batch of concrete can bury the bottom opening of the guide pipe after the valve is opened and the first batch of concrete is flushed to the substrate, so that water can not enter the guide pipe from the bottom opening.
In fact, the purpose of preventing water from entering the conduit from the bottom opening is achieved without adopting the complicated mode, so that a simple device and a method for pouring underwater bottom-sealing concrete are provided, and the problems of large investment, high cost, heavy equipment, large workload and high error rate caused by insufficient first-batch concrete in the conventional method are well solved.
Disclosure of Invention
The invention provides a simple device and a method for pouring underwater bottom-sealing concrete, which are characterized in that a concrete pump truck is used for directly pouring concrete into a guide pipe provided with a rubber ball serving as a piston from the top end step by step, water in the pipe is extruded by the weight of the concrete pump truck to slowly sink to the bottom opening of the guide pipe, other simple measures are taken to prevent the water from entering the guide pipe from the bottom opening, and the purpose of pouring all the bottom-sealing concrete is finally completed.
In order to achieve the purpose, the invention adopts the following technical scheme:
a simple device for pouring underwater bottom sealing concrete comprises a guide pipe, a connector, a balance weight, a rubber ball piston and a hanger. The whole device is directly hung at the tail end of a pump pipe of the concrete pump truck through a hanger, the pipe orifice of the pump pipe is aligned with the upper opening of a guide pipe, the guide pipe is vertically placed in water, and the bottom end of the guide pipe is 10-20cm away from a base surface.
Furthermore, the conduit is a rigid pipe material with similar density to PVC and the like, the inner diameter is 15-25cm, the wall thickness is 3-5mm, and the splicing length is the calculated elevation of the water surface after pouring and the calculated elevation minus the base surface elevation plus 1 m.
Furthermore, the joint is an industrial matching product of the conduit, and the joint is firmly bonded by special glue.
Furthermore, the counterweight is an iron piece and is arranged at a position 1-1.5m away from the bottom of the guide pipe, the shape of the counterweight is convenient to fix, and the weight of the counterweight is 25-30 kg.
Further, the outer diameter of the rubber ball piston is the same as the inner diameter of the guide pipe, and the rubber ball piston is hollow or filled with rigid foam.
Furthermore, the two ends of the hanger are metal parts, the upper end and the lower end of the hanger are respectively and firmly connected with the pipe orifice of the metal pump pipe of the pump truck and the top end of the guide pipe, the hanger and the guide pipe are centered and separated by 25-30cm, and the middle of the hanger is in flexible connection.
The invention also provides a method for pouring the underwater bottom sealing concrete, which comprises the following steps:
s1: after the desilting of cofferdam or open caisson base is accomplished and is accepted, this simple and easy device of concatenation is nearby one day in advance.
S2: after the pump truck is in place, the pump pipe is stretched, a hose at the front end of the pump pipe is removed, the hanger is connected to the pipe orifice of the pump pipe according to requirements, the rubber ball piston is placed at a position 1-1.5m below the pipe orifice on the guide pipe, then the device is lifted to a pouring position and inserted into water, the device is kept in a vertical state, and the lower end of the device is 10cm away from the base surface.
And S3, pumping concrete into the guide pipe by the pump truck, pushing the piston and water in the pipe to sink by the impact force of the concrete and the self gravity of the concrete against the friction force, balancing when the gravity of the concrete in the guide pipe is equal to the buoyancy of the water, continuing to sink the concrete, the rubber ball piston and the water in the pipe with the continuous pumping of the concrete, and stopping sinking when the rubber ball piston reaches the bottom end of the guide pipe. The ratio of the height from the piston to the water surface outside the pipe to the height of the concrete column inside the pipe in the process is approximately kept to be 2.4.
S4: continuously pumping concrete, when the height of the concrete surface in the pipe from the water surface outside the pipe is less than 1/3 water depth, lifting the guide pipe upwards by 30-40cm and then immediately lowering the guide pipe, at the moment, the rubber ball piston is extruded out of the lower end of the guide pipe to float out of the water surface, a part of concrete in the pipe falls onto the ground surface, and the guide pipe descends and the bottom of the guide pipe is inserted into the falling concrete and contacts the ground surface; and repeating the steps, when the height of the concrete surface in the pipe from the water surface outside the pipe is less than 1/3 water depth, lifting the guide pipe upwards by 30-40cm, and immediately lowering the guide pipe, so that more concrete in the pipe falls to the ground surface. The above process is repeated until one of the following two conditions occurs: firstly, the pipe bottom of the guide pipe cannot be inserted into the depth of the ground surface after the guide pipe is placed downwards, the height of the concrete surface in the pipe is basically kept constant after concrete is pumped in, and the concrete at the lower end of the guide pipe can automatically flow out; and secondly, estimating that a large flat concrete cone is formed on the base surface according to the poured concrete amount, lifting the guide pipe by 10cm, and stopping when the height of the concrete surface in the pipe is basically constant after the concrete is pumped in and the concrete at the lower end of the guide pipe can automatically flow out.
S5: and continuously pouring concrete until the concrete surface reaches the set elevation of the scheme. In the process, the bottom opening of the conduit is kept to have enough embedment depth.
S6: the guide pipe is lifted slowly by the pump truck, the whole device can be lifted out of the water surface and moved to the next position, then the rubber ball piston is placed from the upper opening of the guide pipe, and the steps S3-S5 are repeated until the whole process is completed.
Compared with the prior art, the invention has the beneficial effects that:
1. simple equipment, easy preparation, short-term use and no need of long-term storage, and the remainder can be used for other purposes.
2. The equipment is light and flexible, concrete pouring is directly carried out by using the pump truck lifting device, the cooperation of a crane is not needed, various facilities such as a pouring platform, a storage bin, a chute and a funnel are not needed to be built, and the construction cost is greatly reduced.
3. The workload is small, the construction period is saved, and the comprehensive benefit is high.
Drawings
FIG. 1 is a schematic view of the initial sinking stage of concrete
(the device is provided with an iron bottom pipe).
FIG. 2 is a schematic diagram of the initial sinking stage of concrete
(the device is provided with a counterweight).
Fig. 3 is a schematic diagram of the concrete sinking to the bottom stage.
Fig. 4 is a concrete pouring completion schematic diagram.
In the figure: 1-pipe body 2-joint 3-counterweight 4-rubber ball piston 5-hanger 6-water surface 7-ground surface 8-concrete.
Detailed Description
The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form a part hereof, and which together with the embodiments of the invention serve to explain the principles of the invention and not to limit its scope.
The first embodiment is as follows:
as shown in fig. 1, 3 and 4, a simple device for pouring underwater bottom sealing concrete comprises a guide pipe 1, a connector 2, an iron bottom pipe 3, a rubber ball piston 4 and a hanger 5. The whole device is directly hung at the tail end of a pump pipe of the concrete pump truck through a hanger 5, the pipe orifice of the pump pipe is aligned with the upper orifice of the guide pipe 1, the guide pipe 1 is vertically placed into water, and the bottom end of the guide pipe is 710-20 cm away from the ground surface. The total splicing length of the guide pipe 1 and the bottom pipe 3 is the calculated elevation of the water surface 6 minus the elevation of the base surface 7 plus 1m after pouring.
In this embodiment, the conduit 1 is a rigid pipe with similar density to PVC, etc., and has an inner diameter of 15-25cm and a wall thickness of 3-5 mm.
In this embodiment, the joint 2 is an industrial matching product of the catheter 1, and the joint is firmly bonded by using a special adhesive.
In the embodiment, the inner diameter and the outer diameter of the iron bottom pipe 3 are the same as those of the guide pipe 1, the upper end of the iron bottom pipe is welded with an iron sleeve with the length of 20cm and the inner diameter equal to the outer diameter of the guide pipe 1, the weight of the bottom pipe 3 is 25-30kg, and the lower end of the guide pipe 1 is inserted into the upper end of the bottom pipe 3 and is firmly bonded by special glue.
In this embodiment, the external diameter of the rubber ball piston 4 is the same as the internal diameter of the conduit 1, and the rubber ball piston is hollow or filled with rigid foam.
In this embodiment, the hanger 5 has two ends made of metal parts, and the upper and lower ends are respectively and firmly connected to the mouth of the metal pump pipe of the pump truck and the top end of the guide pipe 1, so that the two parts are centered and separated by 25-30cm, and the middle part is in flexible connection.
The invention also provides a method for pouring the underwater bottom sealing concrete, which comprises the following steps:
s1: after the desilting of cofferdam or open caisson base is accomplished and is accepted, this simple and easy device of concatenation is nearby one day in advance.
S2: after the pump truck is in place, the pump pipe is extended, a hose at the front end of the pump pipe is removed, the hanger 5 is connected to the pipe opening of the pump pipe as required, the rubber ball piston 4 is placed 1-1.5m below the pipe opening on the guide pipe 1, then the device is lifted to a pouring position and inserted into water, the device is kept in a vertical state, and the distance between the lower end of the device and the ground surface is 710 cm.
S3, pumping concrete 8 into the guide pipe 1 by the pump truck, pushing the piston 4 and water in the pipe to sink by the impulsive force of the concrete 8 and the self gravity of the concrete to overcome the friction force, balancing when the gravity of the concrete 8 in the guide pipe 1 is equal to the buoyancy of water, continuing to sink the concrete 8, the rubber ball piston 4 and the water in the pipe with the continuous pumping of the concrete 8, and stopping sinking when the rubber ball piston 4 reaches the bottom end of the bottom pipe 3. The ratio of the height from the piston 4 to the water surface 6 outside the pipe to the height of the concrete 8 column inside the pipe in the process is approximately kept to be 2.4.
S4: continuously pumping concrete 8, when the height of the concrete surface in the pipe from the water surface 6 outside the pipe is less than 1/3 water depth, lifting the device upwards by 30-40cm and then immediately lowering the device, at the moment, the rubber ball piston 4 is extruded out of the lower end of the bottom pipe 3 and floats out of the water surface, a part of concrete 8 in the pipe falls to the ground surface 7, and the device descends the bottom of the device to be inserted into the falling concrete 8 and contacts the ground surface 7; and repeatedly, when the height of the concrete surface in the pipe from the water surface 6 outside the pipe is less than 1/3 water depth, the device is lifted upwards by 30-40cm and then immediately lowered, and more concrete 8 in the pipe falls to the ground surface 7. The above process is repeated until one of the following two conditions occurs: firstly, the pipe bottom of the device can not be inserted into the depth of the base surface 7 after the device is placed downwards, the height of the concrete surface in the pipe is basically kept constant after concrete 8 is pumped in, and the concrete 8 at the lower end of the device can automatically flow out; secondly, the base surface 7 is estimated to form a large flat concrete cone based on the amount of poured concrete 8, and the apparatus is lifted in units of 10cm, and stopped when the level of the concrete surface in the pipe remains substantially constant after the concrete 8 is pumped in and the concrete 8 at the lower end of the apparatus is allowed to pour out by itself.
S5: the concrete 8 is poured continuously until the level of the concrete 8 reaches the level set by the scheme. In the process, the bottom opening of the device is kept to have enough embedding depth.
S6: the whole device can be lifted out of the water surface by slowly lifting the device through the pump truck, is moved to the next position, then the rubber ball piston 4 is placed at the upper opening of the guide pipe 1, and the steps S3-S5 are repeated until the whole process is completed.
Example two:
as shown in fig. 2, 3 and 4, a simple device for pouring underwater bottom sealing concrete comprises a guide pipe 1, a connector 2, a counterweight 3, a rubber ball piston 4 and a hanger 5. The whole device is directly hung at the tail end of a pump pipe of the concrete pump truck through a hanger 5, the pipe orifice of the pump pipe is aligned with the upper orifice of the guide pipe 1, the guide pipe 1 is vertically placed into water, and the bottom end of the guide pipe is 710-20 cm away from the ground surface.
In the embodiment, the conduit 1 is a rigid pipe material with similar density to PVC and the like, the inner diameter is 15-25cm, the wall thickness is 3-5mm, and the splicing length is the measured elevation of the water surface 6 minus the elevation of the basal surface 7 plus 1m after pouring.
In this embodiment, the joint 2 is an industrial matching product of the catheter 1, and the joint is firmly bonded by using a special adhesive.
In the embodiment, the counterweight 3 is an iron piece, is arranged at a position 1-1.5m away from the bottom of the conduit 1, is convenient to fix in shape and has the weight of 25-30 kg.
In this embodiment, the external diameter of the rubber ball piston 4 is the same as the internal diameter of the conduit 1, and the rubber ball piston is hollow or filled with rigid foam.
In this embodiment, the hanger 5 has two ends made of metal parts, and the upper and lower ends are respectively and firmly connected to the mouth of the metal pump pipe of the pump truck and the top end of the guide pipe 1, so that the two parts are centered and separated by 25-30cm, and the middle part is in flexible connection.
The invention also provides a method for pouring the underwater bottom sealing concrete, which comprises the following steps:
s1: after the desilting of cofferdam or open caisson base is accomplished and is accepted, this simple and easy device of concatenation is nearby one day in advance.
S2: after the pump truck is in place, the pump pipe is extended, a hose at the front end of the pump pipe is removed, the hanger 5 is connected to the pipe opening of the pump pipe as required, the rubber ball piston 4 is placed at a position 1-1.5m below the pipe opening on the guide pipe 1, then the device is lifted to a pouring position and inserted into water, the device is kept in a vertical state, and the lower end of the device is 710 cm away from the base surface.
S3, pumping concrete 8 into the guide pipe 1 by the pump truck, pushing the piston 4 and water in the pipe to sink by the impulsive force of the concrete 8 and the self gravity of the concrete to overcome the friction force, balancing when the gravity of the concrete 8 in the guide pipe 1 is equal to the buoyancy of water, continuing to sink the concrete 8, the rubber ball piston 4 and the water in the pipe with the continuous pumping of the concrete 8, and stopping sinking when the rubber ball piston 4 reaches the bottom end of the guide pipe 1. The ratio of the height from the piston 4 to the water surface 6 outside the pipe to the height of the concrete 8 column inside the pipe in the process is approximately kept to be 2.4.
S4: continuously pumping concrete 8, when the height of the concrete surface in the pipe from the water surface 6 outside the pipe is less than 1/3 water depth, lifting the guide pipe 1 upwards by 30-40cm and then immediately lowering the guide pipe, wherein the rubber ball piston 4 is extruded out of the lower end of the guide pipe 1 and floats out of the water surface, a part of concrete 8 in the pipe falls onto the ground surface 7, and the guide pipe 1 descends, and the bottom of the guide pipe is inserted into the fallen concrete 8 and contacts the ground surface 7; repeatedly, when the height of the concrete surface in the pipe from the water surface 6 outside the pipe is less than 1/3 water depth, the guide pipe 1 is lifted upwards by 30-40cm and then immediately lowered, and more concrete 8 in the pipe falls to the ground surface 7. The above process is repeated until one of the following two conditions occurs: firstly, the pipe bottom of the guide pipe 1 cannot be inserted into the depth of the base surface 7 after the guide pipe 1 is placed downwards, the height of the concrete surface in the pipe is basically kept constant after the concrete 8 is pumped in, and the concrete 8 at the lower end of the guide pipe 1 can automatically flow out; secondly, the base surface 7 is estimated to form a large flat concrete cone according to the amount of poured concrete 8, and the guide pipe 1 is lifted up in units of 10cm, and the height of the concrete surface in the pipe is basically constant after the concrete 8 is pumped in and the concrete 8 at the lower end of the guide pipe 1 stops when the concrete 8 can flow out by itself.
S5: the concrete 8 is continuously poured until the surface of the concrete 8 reaches the elevation set by the scheme. In this process, the bottom opening of the catheter 1 is kept at a sufficient depth of embedment.
S6: the guide pipe 1 is lifted slowly by the pump truck, the whole device can be lifted out of the water surface and moved to the next place, then the rubber ball piston 4 is placed from the upper opening of the guide pipe 1, and the steps S3-S5 are repeated until the whole process is finished.
Claims (7)
1. The simple device for pouring the underwater bottom sealing concrete is characterized by comprising a guide pipe 1, a connector 2, an iron bottom pipe 3, a rubber ball piston 4 and a hanger 5, wherein the whole device is directly hung at the tail end of a pump pipe of a concrete pump truck through the hanger 5, the pipe orifice of the pump pipe is aligned with the upper opening of the guide pipe 1, the guide pipe 1 is vertically placed in water, the bottom end of the guide pipe is 710-20 cm away from a basal plane, and the total length of the spliced guide pipe 1 and the bottom pipe 3 is the height mark of a measured elevation of a water surface 6 minus the elevation of the basal plane 7 plus 1m after pouring is completed.
2. The device according to claim 1, wherein said conduit 1 is rigid tubing of PVC or the like having a density similar to that of PVC, an inner diameter of 15-25cm and a wall thickness of 3-5 mm.
3. The device as claimed in claim 1, wherein the joint 2 is an industrial matching product of the catheter 1, and the joint is firmly bonded by using a special glue.
4. The process as claimed in claim 1, wherein the iron bottom tube 3 has the same inner and outer diameters as the guide tube 1, an iron sleeve with a length of 20cm and an inner diameter equal to the outer diameter of the guide tube 1 is welded at the upper end, the weight of the bottom tube 3 is between 25 and 30kg, and the lower end of the guide tube 1 is inserted into the upper end of the bottom tube 3 and is firmly bonded by using a special adhesive.
5. The device according to claim 1, wherein the rubber ball piston 4 has the same outer diameter as the inner diameter of the catheter 1, and is hollow or filled with rigid foam.
6. The suspension device as claimed in claim 1, wherein the hanger 5 is made of metal parts at two ends, and is firmly connected with the metal pump pipe orifice of the pump truck and the top end of the guide pipe 1 at the upper end and the lower end respectively, so that the two are centered and separated by 25-30cm, and the middle is in soft connection.
7. A method for underwater footed concrete pouring, characterized in that a simple device for underwater footed concrete pouring according to claims 1 to 6 is used, comprising the steps of:
s1: after the desilting of the cofferdam or the open caisson base is finished and the inspection and acceptance are carried out, the simple device is spliced nearby one day in advance;
s2: after the pump truck is in place, extending a pump pipe, removing a hose at the front end of the pump pipe, connecting a hanger 5 to the pipe orifice of the pump pipe according to requirements, placing a rubber ball piston 4 at a position 1-1.5m below the pipe orifice of a guide pipe 1, then lifting the device to a pouring position to insert into water, keeping the device in a vertical state, and enabling the lower end of the device to be 710 cm away from a base surface;
s3, pumping concrete 8 into the guide pipe 1 by a pump truck, overcoming the friction force by the impulsive force of the concrete 8 and the self gravity to push the piston 4 and the water in the pipe to sink, tending to balance when the gravity of the concrete 8 in the guide pipe 1 is equal to the buoyancy of the water, continuing to sink the concrete 8, the rubber ball piston 4 and the water in the pipe along with the continuous pumping of the concrete 8, stopping sinking when the rubber ball piston 4 reaches the bottom end of the bottom pipe 3, and keeping the ratio of the height from the piston 4 to the water surface 6 outside the pipe to the height of the concrete 8 column in the pipe to be approximately 2.4 in the process;
s4: continuously pumping concrete 8, when the height of the concrete surface in the pipe from the water surface 6 outside the pipe is less than 1/3 water depth, lifting the device upwards by 30-40cm and then immediately lowering the device, at the moment, the rubber ball piston 4 is extruded out of the lower end of the bottom pipe 3 and floats out of the water surface, a part of concrete 8 in the pipe falls to the ground surface 7, and the device descends the bottom of the device to be inserted into the falling concrete 8 and contacts the ground surface 7; repeatedly, when the height of the concrete surface in the pipe from the water surface 6 outside the pipe is less than 1/3 water depth, the device is lifted upwards by 30-40cm and then immediately lowered, more concrete 8 in the pipe falls to the ground surface 7, and the process is repeated until one of the following two conditions occurs: firstly, the pipe bottom of the device can not be inserted into the depth of the base surface 7 after the device is placed downwards, the height of the concrete surface in the pipe is basically kept constant after concrete 8 is pumped in, and the concrete 8 at the lower end of the device can automatically flow out; secondly, estimating that a larger flat concrete cone is formed on the base surface 7 according to the poured concrete 8, lifting the device by taking 10cm as a unit, and stopping when the height of the concrete surface in the pipe is basically kept constant after the concrete 8 is pumped in and the concrete 8 at the lower end of the device can automatically gush out;
s5: continuously pouring concrete 8 until the surface of the concrete 8 reaches the set elevation of the scheme, and keeping the bottom opening of the device to have enough embedding depth in the process;
s6: the device is lifted slowly by the pump truck, the whole device can be lifted out of the water surface, moved to the next place, then the rubber ball piston 4 is placed from the upper opening of the guide pipe 1, and the steps S3-S5 are repeated until the whole process is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210651105.8A CN114892669A (en) | 2022-06-10 | 2022-06-10 | Simple device and method for pouring underwater bottom sealing concrete |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210651105.8A CN114892669A (en) | 2022-06-10 | 2022-06-10 | Simple device and method for pouring underwater bottom sealing concrete |
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| CN114892669A true CN114892669A (en) | 2022-08-12 |
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| CN202210651105.8A Pending CN114892669A (en) | 2022-06-10 | 2022-06-10 | Simple device and method for pouring underwater bottom sealing concrete |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956393A (en) * | 2010-09-30 | 2011-01-26 | 中铁三局集团有限公司 | Construction method for pouring underwater concrete by movable end cap method |
| CN201801870U (en) * | 2010-09-30 | 2011-04-20 | 中铁三局集团有限公司 | Movable conduit end plug for underwater concreting |
| JP2012251344A (en) * | 2011-06-01 | 2012-12-20 | Shimizu Corp | Tremie pipe |
| JP2013104216A (en) * | 2011-11-14 | 2013-05-30 | Fujita Corp | Underwater concrete placing method and device |
| CN207812454U (en) * | 2018-01-29 | 2018-09-04 | 广东梁亮建筑工程有限公司 | A kind of underwater concrete perfusion conduit |
| CN215441913U (en) * | 2021-03-10 | 2022-01-07 | 中交隧道工程局有限公司 | Underwater large-area concrete bottom sealing first-pouring pre-drilling pouring structure |
-
2022
- 2022-06-10 CN CN202210651105.8A patent/CN114892669A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956393A (en) * | 2010-09-30 | 2011-01-26 | 中铁三局集团有限公司 | Construction method for pouring underwater concrete by movable end cap method |
| CN201801870U (en) * | 2010-09-30 | 2011-04-20 | 中铁三局集团有限公司 | Movable conduit end plug for underwater concreting |
| JP2012251344A (en) * | 2011-06-01 | 2012-12-20 | Shimizu Corp | Tremie pipe |
| JP2013104216A (en) * | 2011-11-14 | 2013-05-30 | Fujita Corp | Underwater concrete placing method and device |
| CN207812454U (en) * | 2018-01-29 | 2018-09-04 | 广东梁亮建筑工程有限公司 | A kind of underwater concrete perfusion conduit |
| CN215441913U (en) * | 2021-03-10 | 2022-01-07 | 中交隧道工程局有限公司 | Underwater large-area concrete bottom sealing first-pouring pre-drilling pouring structure |
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