CN114960438A - Concrete leakage-proof device and construction method - Google Patents
Concrete leakage-proof device and construction method Download PDFInfo
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- CN114960438A CN114960438A CN202210576574.8A CN202210576574A CN114960438A CN 114960438 A CN114960438 A CN 114960438A CN 202210576574 A CN202210576574 A CN 202210576574A CN 114960438 A CN114960438 A CN 114960438A
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- Prior art keywords
- sealing element
- steel plate
- fastening
- piece
- prevention device
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- 238000010276 construction Methods 0.000 title claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 70
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 41
- 239000010959 steel Substances 0.000 claims abstract description 41
- 239000002002 slurry Substances 0.000 claims abstract description 31
- 230000002265 prevention Effects 0.000 claims abstract description 23
- 230000002093 peripheral effect Effects 0.000 claims abstract description 13
- 239000011440 grout Substances 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 6
- 238000009415 formwork Methods 0.000 description 22
- 239000007788 liquid Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000009194 climbing Effects 0.000 description 3
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention belongs to the technical field of bridge construction, and relates to a concrete leakage prevention device and a construction method, wherein the concrete leakage prevention device comprises a sealing element and a fastening unit, the sealing element is of an annular structure, the fastening unit is axially arranged in parallel with the axial direction of the sealing element and is positioned in the peripheral direction of the sealing element, and the fastening unit is respectively connected with the outer ring surface of the sealing element and the lower end surface of the sealing element; the fastening unit comprises a steel plate and a fastening piece; the steel plate is axially parallel to the sealing element, and the fastening piece penetrates through the steel plate and is connected with the outer annular surface of the sealing element. The invention can thoroughly prevent slurry leakage, improve construction quality and construction safety and has high efficiency.
Description
Technical Field
The invention belongs to the technical field of bridge concrete construction, and relates to a concrete leakage-proof device and a construction method, which are used for high pier body hydraulic creeping formwork concrete construction.
Background
In the high pier body hydraulic climbing mould stage concrete construction, a concrete leakage device often occurs, and the construction quality and the construction speed are influenced. In order to solve the problem of concrete slurry leakage, a common method is to use foam rubber, geotextile or a slurry stopping belt and the like to block a gap between a template and formed concrete before concrete pouring, but when the method is actually adopted, the slurry leakage prevention is not thorough, and the phenomenon of concrete slurry leakage still exists, which indicates that the existing method cannot effectively and fundamentally solve the problem of slurry leakage, so that the problems of slab staggering, root rot and the like of concrete construction in a hydraulic climbing formwork stage are caused, and the problem of pier body appearance pollution is caused, thereby bringing serious influences on construction quality and safety.
Disclosure of Invention
Aiming at the problem that concrete leakage prevention is not thorough in the existing hydraulic creeping formwork construction, the invention provides the concrete leakage prevention device and the construction method, which can thoroughly prevent leakage, are convenient and fast to construct, and have high construction quality and safety.
In order to solve the problems, the invention adopts the technical scheme that:
the concrete leakage prevention device comprises a sealing element and a fastening unit which are arranged in parallel, wherein the sealing element is of an annular structure; the fastening unit is located in the peripheral direction of the sealing element and is connected with the outer annular surface of the sealing element and the lower end surface of the sealing element respectively.
Further, the fastening unit comprises a steel plate and a fastening piece; the steel plate is axially arranged in parallel with the sealing element, and the fastening element penetrates through the steel plate and is connected with the outer ring surface of the sealing element.
Further, the fastener comprises an adjusting screw and a nut matched with the adjusting screw; the adjusting screw penetrates through the steel plate to be connected with the outer annular surface of the sealing element and is fastened through a nut.
Furthermore, the fastening unit also comprises a second supporting piece which is arranged on the steel plate and is positioned below the sealing piece, and a clamping block is arranged on the second supporting piece; the clamping block axially slides along the second supporting piece and is connected with the lower end face of the sealing piece.
Further, the sealing element comprises a first supporting piece and a grout stopping strip, the first supporting piece is of an annular structure, and the grout stopping strip is arranged in a circle along the inner annular surface of the first supporting piece; the axial steel plates of the first supporting piece are axially parallel, and the fastening piece penetrates through the steel plates to be connected with the outer ring surface of the first supporting piece; the fixture block is connected with the lower end face of the first supporting piece.
Further, the fastening unit is multiple; the plurality of fastening units are uniformly distributed in a circle in the peripheral direction of the first support piece.
The construction method of the concrete grout leakage prevention device comprises the following steps:
1) according to the slurry leakage gap in construction, the sealing element is sleeved outside the slurry leakage gap;
2) a plurality of fastening units are uniformly arranged in the peripheral direction of the sealing element, are connected with the lower end face of the sealing element and apply longitudinal supporting and tightening force to the sealing element;
3) and the plurality of fastening units are connected and fastened with the outer annular surface of the sealing element, and apply transverse pressing force to the sealing element to complete the construction of the slurry leakage prevention device.
Further, in the step 1), the first supporting piece is sleeved outside the slurry leakage gap and is in contact sealing with the slurry leakage gap through the slurry stopping strip.
Further, the specific process of step 2) is as follows: fixing a steel plate in the peripheral direction of the first support piece; and moving the fixture block in the second support piece until the fixture block is contacted with the lower end surface of the first support piece and is fastened.
Further, in the step 3), the adjusting screw rod transversely penetrates through the steel plate to be connected with the outer ring surface of the first supporting piece and is fastened through a nut.
The invention has the beneficial effects that:
1. in the invention, the fastener penetrates through the steel plate to be in contact with the outer ring surface of the first supporting piece, and is fastened through the nut, pressing force is applied in the transverse direction, further, the second supporting piece is connected with the lower end surface of the first supporting piece through the clamping block, the first supporting piece is supported and tightened through the clamping block, and the pressing force is applied from two directions, so that the slip-stopping strip is prevented from slipping and is in tight contact, the grout leakage can be effectively and fundamentally solved in construction, and the construction quality and the construction safety are ensured.
2. Before concrete pouring, the fastener is used for pushing, so that the grout stopping strips are closely attached to the bottoms of the creeping formwork templates and the pier bodies, concrete grout leakage can be thoroughly prevented, and construction quality is improved.
3. The slurry leakage prevention device provided by the invention can be repeatedly used, has a good slurry leakage prevention effect, improves the concrete construction efficiency and reduces the cost.
Drawings
FIG. 1 is an overall schematic view of a slurry leakage prevention device in creeping formwork construction, wherein A is the slurry leakage prevention device;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
wherein:
1-stop pulp strips; 2-a first support; 3-a second support member; 4, clamping blocks; 5, fastening parts; 6-steel plate; 7, climbing formwork template; 8-pier body.
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings and examples.
Examples
Referring to fig. 1 and 2, the concrete grout leakage prevention device provided by the embodiment comprises a sealing element and a fastening unit which are arranged in parallel, wherein the sealing element is of an annular structure; the fastening unit is located in the peripheral direction of the sealing member, and the fastening unit is connected with the outer annular surface of the sealing member and the lower end surface of the sealing member respectively.
When the method is implemented, the creeping formwork template 7 is arranged in the periphery direction of the pier body 8 for a circle, and a gap exists at the connection part of the bottom of the creeping formwork template 7 and the pier body 8; the sealing element in the slurry leakage prevention device is sleeved on a pier body 8, the upper end face of the sealing element is tightly attached to the bottom of a creeping formwork template 7, the inner ring face of the sealing element is tightly attached to the pier body 8, so that a slurry leakage gap between the creeping formwork template 7 and the pier body 8 is blocked, a plurality of fastening units are further arranged, a circle of fastening units are uniformly distributed in the peripheral direction of a first supporting element 2, each fastening unit is respectively connected with the outer ring face of the sealing element and the lower end face of the sealing element, longitudinal supporting pretightening force is applied to the sealing element from the lower direction, and transverse pressing force is applied to the sealing element from the lower direction, so that the sealing element is tightly attached to the gap, and the slurry leakage problem of the gap in concrete construction is fundamentally solved.
Further, the fastening unit includes a steel plate 6 and a fastening member 5; the steel plate 6 is axially parallel to the sealing element, and the fastening piece 5 penetrates through the steel plate 6 to be connected with the outer annular surface of the sealing element. The fastening unit further comprises a second support member 3 which is arranged on the steel plate 6 and is positioned below the sealing member, and a clamping block 4 is arranged on the second support member 3; the fixture block 4 axially slides along the second support 3 and is connected with the lower end surface of the sealing member.
In this embodiment, the fastening member 5 includes an adjusting screw and a nut adapted to the adjusting screw; the adjusting screw penetrates through the steel plate 6 to be connected with the outer ring surface of the sealing element and is fastened through a nut; realize ending thick liquid strip 1 and 7 bottom surfaces of creeping formwork template and 8 outer walls of pier body closely paste tightly through fastener 5, plug up the connecting gap, effectively prevent to leak thick liquid.
In the embodiment, the sealing element comprises a first supporting part 2 and a grout stopping strip 1, wherein the first supporting part 2 is of an annular structure, and the grout stopping strip 1 is arranged in a circle along the inner annular surface of the first supporting part 2; the axial direction of the first supporting piece 2 is parallel to the axial direction of the steel plate 6, and the fastening piece 5 passes through the steel plate 6 to be connected with the outer annular surface of the first supporting piece 2; the fixture block 4 is connected with the lower end surface of the first supporting piece 2.
In the embodiment, the second supporting piece 3 is a channel steel with a C-shaped cross section, the opening of the C-shaped channel is upward, the clamping block 4 is arranged in the C-shaped channel, the clamping block 4 slides in the second supporting piece 3 until contacting with the lower end face of the first supporting piece 2, and the first supporting piece 2 and the grout stopping strip 1 are supported from the lower part through the second supporting piece 3, so that the grout stopping strip 1 is upwards and tightly attached to the bottom face of the creeping formwork template 7; meanwhile, the downward slipping of the grout stopping strip 1 is prevented, and the stability of the grout stopping strip 1 is ensured. Therefore, the second supporting member 3 can be used as a movable slot of the clamping block 4, and the clamping block 4 plays a role of a sliding block, so that the clamping block 4 is connected with the first supporting member 2 by sliding in the second supporting member 3.
During implementation, the grout stopping strip 1 is made of ethylene propylene diene monomer, grout leakage can be effectively prevented, and the cross section of the first supporting piece 2 is of a circular structure; end thick liquid strip 1 and bond on 2 inner walls of first support piece for end thick liquid strip 1 and 7 bottom surfaces of creeping formwork template and 8 outer walls of the pier body hug closely respectively, during the implementation, for the installation of convenience, first support piece 2 is by the whole that quantity is two semi-ring structure swing joint, and the installation of being convenient for can adjust according to the radial dimension of the pier body 8 simultaneously, makes and ends thick liquid strip 1 and 8 outer walls of the pier body and hug closely.
In implementation, the first supporting member 2 is an annular structure formed by two symmetrical C-shaped channel steels, and the first supporting member 2 is annular. The second support piece 3 is a C-shaped channel steel, the type of the channel steel is No. 5, the height of the steel plate 6 is 600mm, and the length of the second support piece 3 is 300 mm.
In order to ensure the fastening effect, the fastening units are multiple; the plurality of fastening units are evenly distributed in the circumferential direction of the first support 2.
The leak protection thick liquid device that this embodiment provided, its work progress is:
1) according to the slurry leakage gap in construction, the sealing element is sleeved outside the slurry leakage gap.
Specifically, in the step 1), the first supporting piece 2 is sleeved outside the slurry leakage gap, and the first supporting piece 2 is in contact sealing with the slurry leakage gap through the slurry stopping strip 1.
2) A plurality of fastening units are uniformly arranged in the peripheral direction of the sealing piece, are connected with the lower end face of the sealing piece and apply longitudinal supporting force to the sealing piece.
Fixing a steel plate 6 in the peripheral direction of the first support member 2; move fixture block 4 in the second support piece 3 until fixture block 4 and the contact of 2 lower terminal surfaces of first support piece to the fastening prevents to slide in the work progress, and the thick liquid strip 1 is applyed upwards support tightening force through first support piece 2 from the below, reinforcing sealed effect.
3) And the plurality of fastening units are connected and fastened with the outer annular surface of the sealing element, and apply transverse pressing force to the sealing element to complete the construction of the slurry leakage prevention device.
Specifically, the adjusting screw rod in the step 3) transversely penetrates through the steel plate 6 to be connected with the outer annular surface of the first supporting piece 2 and is fastened through a nut, transverse pressing force is applied to the outer annular surface of the first supporting piece 2, and sealing is tight.
The leak protection thick liquid device that this embodiment provided is when using, and the equipartition round is gone up to whole device on creeping formwork template 7's circumference outer wall, carries out the shutoff with creeping formwork template 7 and the gap between the shaping concrete.
The specific using steps are as follows: a circle of creeping formwork templates 7 is fixedly installed on the outer wall of a pier body 8 above a pier body 8 of formed concrete, a grout stopping strip 1 is wound at the joint between the formed concrete pier body and the creeping formwork templates 7, the inner annular surface of a first supporting piece 2 is connected with the grout stopping strip 1, then a steel plate 6 is installed on the creeping formwork 7, a clamping block 4 in a second supporting piece 3 arranged on the steel plate 6 is in contact connection with the first supporting piece 2, the installation steel plate 6 is fixed with the creeping formwork 7 through a bolt, a fastening piece 5 axially traverses the installation steel plate 6 to be connected with the first supporting piece 2, the fastening piece 5 is continuously screwed, the first supporting piece 2 and the grout stopping strip 1 are pushed towards the pier body 8 through the fastening piece 5, so that the grout stopping strip 1 is tightly attached to the bottom of the creeping formwork templates 7 and the pier body 8, the grout stopping strip 1 is further pushed upwards through the second supporting piece 3 and the clamping block 4, and a tightening force is applied to the grout stopping strip 1 from the lower part, the grout stopping strip 1 is prevented from slipping downwards, the gap between the creeping formwork template 7 and the formed concrete is guaranteed to be sealed, the concrete grout leakage can be thoroughly prevented, the construction quality is improved, and the construction safety is guaranteed; the device has simple structure and easy operation, can be repeatedly used, improves the construction efficiency and reduces the construction cost.
When implementing, tighten the nut on the adjusting screw of fastener 5 through torque wrench, make the concrete that ends pouring on thick liquid strip 1 and the pier body 8 closely laminate, through the support that tightens up of second support piece 3, make and end thick liquid strip 1 atress, will end thick liquid strip 1 and pier body 8 and creeping formwork template 7 closely laminate to reach the effect that prevents to leak thick liquid.
Claims (10)
1. The concrete leakage prevention device is characterized by comprising a sealing element and a fastening unit which are arranged in parallel, wherein the sealing element is of an annular structure; the fastening unit is located in the peripheral direction of the sealing element and is connected with the outer annular surface of the sealing element and the lower end surface of the sealing element respectively.
2. The concrete grout leakage prevention device according to claim 1, wherein the fastening unit comprises a steel plate (6) and a fastening member (5); the steel plate (6) is axially parallel to the sealing element, and the fastening piece (5) penetrates through the steel plate (6) to be connected with the outer annular surface of the sealing element.
3. The concrete leakage prevention device according to claim 2, wherein the fastening member (5) comprises an adjusting screw and a nut adapted to the adjusting screw; the adjusting screw penetrates through the steel plate (6) to be connected with the outer ring surface of the sealing element and is fastened through a nut.
4. The concrete leakage prevention device according to claim 3, wherein the fastening unit further comprises a second support member (3) placed on the steel plate (6) and below the sealing member, the second support member (3) is provided with a fixture block (4); the fixture block (4) axially slides along the second support piece (3) and is connected with the lower end face of the sealing piece.
5. The concrete leakage prevention device of claim 4, wherein the sealing member comprises a first supporting member (2) and a grout stopping strip (1), the first supporting member (2) is of a ring-shaped structure, and the grout stopping strip (1) is arranged in a circle along the inner ring surface of the first supporting member (2); the axial direction of the first supporting piece (2) is parallel to the axial direction of the steel plate (6), and the fastening piece (5) penetrates through the steel plate (6) to be connected with the outer annular surface of the first supporting piece (2); the fixture block (4) is connected with the lower end face of the first support piece (2).
6. The concrete grout leakage prevention device of claim 5, wherein the fastening unit is plural; the plurality of fastening units are uniformly distributed in a circle in the peripheral direction of the first supporting piece (2).
7. A construction method of the concrete grout leakage prevention device according to claim 6, wherein the construction method comprises the following steps:
1) according to the slurry leakage gap in construction, the sealing element of claim 6 is sleeved outside the slurry leakage gap;
2) a plurality of fastening units are uniformly arranged in the peripheral direction of the sealing element, are connected with the lower end surface of the sealing element and apply longitudinal supporting and tightening force to the sealing element;
3) and the plurality of fastening units are connected and fastened with the outer annular surface of the sealing element, and apply transverse pressing force to the sealing element to complete the construction of the slurry leakage prevention device.
8. The construction method according to the claim 7, characterized in that in the step 1), the first supporting member (2) is sleeved outside the slurry leakage gap, and the first supporting member (2) is sealed with the slurry leakage gap through the slurry stopping strip (1).
9. The construction method according to claim 8, wherein the specific process of the step 2) is as follows: fixing a steel plate (6) in the peripheral direction of the first support member (2); and moving the clamping block (4) in the second support piece (3) until the clamping block (4) is contacted with the lower end surface of the first support piece (2) and is fastened.
10. The construction method according to claim 9, wherein the adjusting screw rod of step 3) transversely penetrates through the steel plate (6) to be connected with the outer ring surface of the first support member (2) and is fastened through a nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210576574.8A CN114960438A (en) | 2022-05-25 | 2022-05-25 | Concrete leakage-proof device and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210576574.8A CN114960438A (en) | 2022-05-25 | 2022-05-25 | Concrete leakage-proof device and construction method |
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| CN114960438A true CN114960438A (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210576574.8A Pending CN114960438A (en) | 2022-05-25 | 2022-05-25 | Concrete leakage-proof device and construction method |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101649609A (en) * | 2009-09-11 | 2010-02-17 | 中国葛洲坝集团股份有限公司 | Method for embedding and fixing horizontal grout stop belt |
| CN201685317U (en) * | 2010-05-04 | 2010-12-29 | 葛洲坝集团第五工程有限公司 | Grout stop structure of prefabricated beam-and-slab pedestal and side molds |
| CN205501831U (en) * | 2016-03-14 | 2016-08-24 | 中交二航局第四工程有限公司 | A device for solving mashed root of pier shaft concrete |
| CN206091301U (en) * | 2016-09-14 | 2017-04-12 | 中国葛洲坝集团第六工程有限公司 | Ware is only starched to template |
| CN206264112U (en) * | 2016-12-15 | 2017-06-20 | 中建筑港集团有限公司 | A kind of caisson template stops sizing device |
| CN206616862U (en) * | 2017-04-13 | 2017-11-07 | 青岛一建集团有限公司 | Formwork root bracing means |
| DE202019105291U1 (en) * | 2019-09-24 | 2019-10-07 | Zhejiang Construction Engineering Group Co., Ltd. | Mortar leak protection device for assembled inner and outer wall composite formwork |
| CN210127628U (en) * | 2019-06-12 | 2020-03-06 | 中铁二十三局集团第六工程有限公司 | Hydraulic creeping formwork grout stopping device |
| CN112144887A (en) * | 2020-09-16 | 2020-12-29 | 北京九洋建设工程有限公司 | Concrete member slurry leakage prevention structure |
| CN215715315U (en) * | 2021-07-13 | 2022-02-01 | 中交第四航务工程局有限公司 | Be used for concrete layering to pour steel form and only starch device |
-
2022
- 2022-05-25 CN CN202210576574.8A patent/CN114960438A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101649609A (en) * | 2009-09-11 | 2010-02-17 | 中国葛洲坝集团股份有限公司 | Method for embedding and fixing horizontal grout stop belt |
| CN201685317U (en) * | 2010-05-04 | 2010-12-29 | 葛洲坝集团第五工程有限公司 | Grout stop structure of prefabricated beam-and-slab pedestal and side molds |
| CN205501831U (en) * | 2016-03-14 | 2016-08-24 | 中交二航局第四工程有限公司 | A device for solving mashed root of pier shaft concrete |
| CN206091301U (en) * | 2016-09-14 | 2017-04-12 | 中国葛洲坝集团第六工程有限公司 | Ware is only starched to template |
| CN206264112U (en) * | 2016-12-15 | 2017-06-20 | 中建筑港集团有限公司 | A kind of caisson template stops sizing device |
| CN206616862U (en) * | 2017-04-13 | 2017-11-07 | 青岛一建集团有限公司 | Formwork root bracing means |
| CN210127628U (en) * | 2019-06-12 | 2020-03-06 | 中铁二十三局集团第六工程有限公司 | Hydraulic creeping formwork grout stopping device |
| DE202019105291U1 (en) * | 2019-09-24 | 2019-10-07 | Zhejiang Construction Engineering Group Co., Ltd. | Mortar leak protection device for assembled inner and outer wall composite formwork |
| CN112144887A (en) * | 2020-09-16 | 2020-12-29 | 北京九洋建设工程有限公司 | Concrete member slurry leakage prevention structure |
| CN215715315U (en) * | 2021-07-13 | 2022-02-01 | 中交第四航务工程局有限公司 | Be used for concrete layering to pour steel form and only starch device |
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