CN103967026A - Temporary cofferdam applied to maintenance of urban tidal river concrete anti-flood wall and construction method thereof - Google Patents
Temporary cofferdam applied to maintenance of urban tidal river concrete anti-flood wall and construction method thereof Download PDFInfo
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- CN103967026A CN103967026A CN201410136839.8A CN201410136839A CN103967026A CN 103967026 A CN103967026 A CN 103967026A CN 201410136839 A CN201410136839 A CN 201410136839A CN 103967026 A CN103967026 A CN 103967026A
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Abstract
The invention discloses a temporary cofferdam applied to maintenance of an urban tidal river concrete anti-flood wall and a construction method thereof. The temporary cofferdam is composed of an arched pipe bag, side reinforced belts, annular reinforced belts, impervious blankets, end reinforced and impervious curtains and anchoring components. A plurality of grouting openings and sealing plugs for water filling and draining are arranged on the upper portions of the facing-water sides of the pipe bags, the walls of the water facing sides and the land sides of the pipe bags are integrally combined with the high-strength reinforced belts to form the side reinforced belts, and the impervious blankets outwards extend out of the side reinforced belts on the water facing sides and are pressed by a row of small sand bags; the two ends of each pipe bag are provided with the annular reinforced belts which are integrated with the side reinforced belts, and the annular reinforced belts extend outwards to form the horn-shaped end reinforced impervious curtains to be connected with an original wall and anchored and sealed by the anchoring components; the end reinforced and impervious curtains and the impervious blankets are integrated to form a sealed water retaining structure with the arched pipe bags. The temporary cofferdam has the advantages of being simple in structure, safe, reliable, convenient to transport and store, quick to construct, capable of being repeatedly used, friendly to the environment, and the like.
Description
Technical field
The present invention relates to hydraulic engineering technical field, relate to a kind of temporary water dash structure and construction method thereof for city tidal river concrete flood control wall maintenance and reinforcement, particularly relate to a kind of arch anchoring type charging pipe bag temporary water dash structure and construction method thereof.
Background technology
Gather in the network of waterways, China coast Hekou Area, two sides, river are huge for dyke flood protection wall quantity and the length of controlling flood, the maintenance that often needs reinforcement of urban district tidal river concrete flood control wall, while being typically chosen in low tide, carry out, but because maintenance and reinforcement construction cannot complete within a tidal period, so the maintenance period needs a kind of temporary water dash structure to carry out enclosing to the breach of maintenance section, needs to construct Temporary Cofferdam.
Before the present invention, the Temporary Cofferdam adopting during coastal cities tidal river concrete flood control wall maintenance and reinforcement mainly contains three kinds: packed earth embankment, large-scale brick construction and assembly type plate Temporary Cofferdam.Packed earth embankment is many by soil amount, the difficulty that fetches earth, and floor space is large, needs the multiple tracks complicated procedures of forming such as dress soil, carrying, fill, dismounting and spoir; Large-scale brick construction, fragment of brick need to be prefabricated in advance, and freight volume is large, and deposit takes up an area many, builds and dismantle long in time limit.These two kinds of structures all have a large amount of manpower and materials of need, build and remove length consuming time, and not reproducible utilization causes waste, affect road traffic and destroy the drawbacks such as urban environment.Assembly type plate Temporary Cofferdam, parts and complex process, need to be tightly connected between each unit, can not be adapted to various grounds, needs fluting or piling, easily destroys road surface and roadbed, and be connected with dyke and corner easily leaks, and can not seal completely.
Summary of the invention
The object of the invention is to overcome the deficiency that above-mentioned existing Temporary Cofferdam can not meet the requirement of coastal cities tidal river concrete flood control wall maintenance and reinforcement temporary water dash, a kind of arch anchoring type charging pipe bag Temporary Cofferdam and construction method thereof are proposed, this cofferdam structure form rationally, safety and stability, connecting sealed be reliable, do not affect road traffic and destroy urban environment, it is convenient to mount and dismount, and can reuse.
Another object of the present invention is to provide described Temporary Cofferdam construction method in actual applications.
The present invention realizes by the following technical solutions:
A Temporary Cofferdam for city tidal river concrete flood control wall maintenance use, is characterized in that: Temporary Cofferdam is comprised of the rectangular pipe bag of arch, side reinforced bands, ring-stiffened band, impervious blanket, end reinforcement antiseepage curtain and anchorage element.Pipe bag near water upper lateral part is provided with some charging mouthful and closing cocks, and for rapid water filling with discharge water, at pipe bag, side and land side all adopt one deck high-strength band and a bag wall to be combined into integral body and to form side reinforced bands near water; The pipe bag near water side reinforced bands of side extends outward impervious blanket, and with little sand pocket gland with prolongation seepage paths, reduce seepage; In side reinforced bands, near two ends of pipe bag, ring-stiffened band is set, to be passed to whole cross-section flour bag wall in the side reinforced bands the pulling force of pipe bag bag wall axis direction by inside and outside both sides, thereby effectively disperse pulling force, pipe bag ring-stiffened band extends to two end directions, form trumpet-shaped end reinforcement antiseepage curtain, near concrete flood control wall place, be connected with original metope, and sealing with anchorage element anchoring; End reinforcement antiseepage curtain and impervious blanket are linked to be integral body, the water-retaining structure of sealing together with forming together with the rectangular pipe bag of arch.
The rectangular pipe bag of described arch is that cross section is rectangular pipe bag oval, that axis is arch, pipe bag near water upper lateral part is provided with several and charges mouthful and closing cock, bagging is cloth two films (as polyamide fibre canvas and neoprene) that intensity high permeability resistant can be good, and pipe bag can be made all lengths, profile height and color as required;
Described side reinforced bands is separately positioned on the pipe bag side of side and land side near water, and is combined into an integral body with a pipe bag wall;
Described impervious blanket and pipe bag near water the side reinforced bands of side are connected, and extend outward side outer wall bottom near water from pipe bag, for extending seepage paths and reducing seepage;
Described ring-stiffened band is arranged on two ends of pipe bag and is connected with side direction reinforced bands, and be combined with each other with the bag wall of whole section, in side reinforced bands the pulling force of pipe bag bag wall axis direction by inside and outside both sides, be passed to whole cross-section flour bag wall, thereby effectively disperse pulling force.
Described end reinforcement antiseepage curtain is connected with pipe bag ring-stiffened band, after extending to end, form horn-like, and be connected with original metope near concrete flood control wall place, junction is pushed down with steel bar and rubber gasket, uses expansion dilating screw and nut to carry out anchoring sealing.
Described the pipe bag extended impervious blanket in bottom and the extended reinforcement antiseepage in end curtain are being linked to be integral body near flood protection wall the foot of a wall place, thus the water-retaining structure of sealing together with forming together with rectangular pipe bag.
The construction method that the invention still further relates to described Temporary Cofferdam, comprises the following steps:
(1) in the preparatory stage, customize a collection of different length and section and with the rectangular pipe bag of arch shape of impervious blanket, side reinforced bands, ring-stiffened band and end reinforcement antiseepage curtain, and be equipped with the anchorage elements such as sufficient rubber sheet gasket, steel bar, nut and dilating screw.
(2), after determining certain the section concrete flood protection wall that need to contain, the body of wall length of containing is as required selected the rectangular pipe bag of arch of corresponding length, the anchorage element of respective numbers, and the pipe bag and the anchorage element that fold are transported to scene;
(3) at pipe bag and anchorage element, be transported to behind scene, outside flood control dike, approximately demarcate and need to lay the position of arch tube bag axis and the position of anchoring at 2～3m place, and mark is carried out in this position;
(4) folding arch tube bag is launched to lay along axis direction, then impervious blanket is launched, and with little sand pocket, unanimously arrange gland at outer ledge;
(5) two end reinforcement antiseepage curtains of pipe bag are connected with concrete flood control wall, and are anchored on metope with anchorage elements such as rubber sheet gasket, steel bar, nut and dilating screws;
(6) after completing the installation and anchoring of pipe bag, with several water pumps, be connected on every charging on mouth of 10m and carry out water-filling, pipe bag is heaved while closing on preset height, by controlling the final height of filling opening pressure control pipe bag;
(7) when pipe bag reaches after preset height, closing cock is tightened to sealing, finally formed the water-retaining structure of a sealing;
(8) after concrete flood control wall maintenance and reinforcement completes, the water body in pipe is emitted, pack up pipe bag afterflush clean, pipe bag and anchorage element are transported to warehouse storage, in order to using again next time.
Compared with prior art, advantage of the present invention and effect are:
(1) fully adopt the principle of arch, transfer hydrostatic pressure radially to hoop axle pulling force, rely on inside and outside both sides reinforced bands and ring-stiffened band to hold pipe bag, guarantee pipe bag fill, discharge water and dash process in keep whole stability and security;
(2) structural shape is fairly simple, and all parts all can be in advance in factory's batch production, and the little quality of volume is light, and storage and convenient transportation are time saving and energy saving;
(3) adopt the rectangular pipe bag of arch dash, take full advantage of the flexibility of pipe bag, to ground better adaptability, can be flexibly, be effectively applied to engineering reality;
(4) two ends of pipe bag adopt respectively full section reinforced bands antiseepage curtain, reinforcement antiseepage curtain is connected with original concrete flood control wall, the pulling force of pipe bag axis direction is uploaded to the whole outer wall in pipe bag cross section by the reinforced bands of managing bag inside and outside both sides, effectively disperse pulling force, improve degree of safety and the reliability of pipe bag material and anchor structure, and play the effect of sealing sealing simultaneously;
(5) construction sequence is simple and direct, can Fast Installation and dismounting, can reuse;
(6) pipe bag and antiskid base color are optional, can not destroy urban road surfaces and view, environmental protection.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Protection scope of the present invention is not limited with the specific embodiment, but is limited by claim.
Accompanying drawing explanation
Fig. 1 Temporary Cofferdam layout plan of the present invention;
Fig. 2 Temporary Cofferdam cross-sectional drawing of the present invention;
Top view in Fig. 3 Fig. 1 after the local amplification in A position;
Elevation in Fig. 4 Fig. 1 after the local amplification in A position;
Lateral view in Fig. 5 Fig. 1 after the local amplification in A position.
In figure: 1, arch tube bag, 2, side reinforced bands, 3, ring-stiffened band, 4, impervious blanket, 5, end reinforcement antiseepage curtain, 6, anchorage element, 7, concrete flood control wall, 8, charge mouth, 9, closing cock, 10, little sand pocket, 11, rubber sheet gasket, 12, steel bar, 13, nut, 14, dilating screw.
The specific embodiment
As shown in Figure 1 to 4, the Temporary Cofferdam of a kind of city tidal river concrete flood control wall maintenance use, is comprised of the rectangular pipe bag 1 of arch, side reinforced bands 2, ring-stiffened band 3, impervious blanket 4, end reinforcement antiseepage curtain 5 and anchorage element 6.Pipe bag 1 along axis direction every 10m near water upper lateral part establish and charge mouthfuls 8 and closing cock 9, can carry out rapid water filling and discharge water; Pipe bag 1 extends outward impervious blanket 2 in side outer wall bottom near water, and width is about 1m, and along pipe bag axis direction, arranges gland to extend seepage paths, to reduce seepage with the little sand pocket 10 of a row; Pipe bag 1 near water side and land side all adopts one deck high-strength band and wall to be combined into an integral body formation side reinforced bands 2; At side reinforcement 2 bands, to full section diffusion position, ring-stiffened band 3 is set, to the pulling force of 1 bag of wall axis direction of pipe bag is uploaded to the bag wall in whole cross section by the side reinforced bands 2 of inside and outside both sides, thereby effectively disperses bag wall pulling force; 1 two ends of pipe bag are extended to two ends by ring-stiffened band 3, form trumpet-shaped end reinforcement antiseepage curtain 5, near concrete flood control wall 7, in original metope, be connected; And carry out anchoring sealing with anchorage element 6; Anchorage element 6 is comprised of rubber sheet gasket 11, steel bar 12, nut 13 and dilating screw 14.End reinforcement antiseepage curtain 5 and impervious blanket 4 are linked to be integral body, the water-retaining structure of sealing together with forming together with pipe bag 1.
The construction method of the Temporary Cofferdam of described city tidal river concrete flood control wall maintenance use, comprises the following steps:
(1), in the preparatory stage, first customize a collection of length and be the various models such as 10m, 20 m, 30 m, 50 m, 80 m and make with the rectangular pipe bag of arch 1(available heat sulfuration process or the cold bonding technique of impervious blanket 4, side reinforced bands 2, ring-stiffened band 3 and end reinforcement antiseepage curtain 5) and and be equipped with the anchoring containment members such as sufficient rubber sheet gasket 11, steel bar 12, nut 13 and dilating screw 14;
(2), after determining certain the section concrete flood protection wall 7 that need to contain, the length of the flood protection wall 7 of containing is as required selected the pipe bag 1 of equal length and the anchoring containment member 6 of respective numbers, first the pipe bag 1 folding and anchorage element 6 is transported to scene;
(3), after determining certain the section concrete flood protection wall 7 that need to contain, the length of the concrete flood control wall 7 of containing as required selects the arch tube bag 1 of corresponding length, the anchorage element 6 of respective numbers, and the pipe bag 1 folding and anchorage element 6 are transported to scene;
(4) at pipe bag 1 and anchorage element 6, be transported to behind scene, in concrete flood control wall 7 outsides, approximately demarcate and need to lay the position of arch tube bag axis and the position of end anchorage at 2～3m place, and mark is carried out in this position;
(5) folding pipe bag 1 is laid along axis direction, then impervious blanket 4 is launched, and with little sand pocket 10, unanimously arrange gland to extend seepage paths, to reduce seepage at outer ledge;
(6) finally two end reinforcement antiseepage curtains 5 of pipe bag 1 are connected and anchoring with concrete flood control wall 7, during anchoring, first in pipe bag 1 end, squeeze into expansion dilating screw 14 with the position that concrete flood control wall 7 metopes are connected, again by rubber sheet gasket 11 and end reinforcement antiseepage curtain 5 through expansion dilating screw 14 and be close to the metope of concrete flood control wall 7, with rubber sheet gasket 11 and the larger steel bar 12 of rigidity, push down, then with nut 14, tighten;
(7) after completing the installation and anchoring of pipe bag, with several water pumps, be connected on every charging on mouth of 10m and pour water, manage bag 1 and heave while closing on preset height, by controlling, pump capacity slows down water-filling speed so that accurately control valve bag 1 is highly final;
(8), after reaching final preset height, closing cock 8 is tightened to sealing.The final like this water-retaining structure that forms a sealing;
(9) after concrete flood control wall 7 maintenance and reinforcements complete, the water body in pipe bag 1 is emitted, pack up pipe bag 1 afterflush clean, pipe bag 1 and anchorage element 6 can store, and in order to the next time of use again, thereby realize recycling.
Claims (2)
1. a city tidal river concrete flood control wall maintenance Temporary Cofferdam, is characterized in that: Temporary Cofferdam is comprised of the rectangular pipe bag of arch, side reinforced bands, ring-stiffened band, impervious blanket, end reinforcement antiseepage curtain and anchorage element;
Pipe bag near water upper lateral part is provided with some mouth and closing cocks of charging; At pipe bag, side and land side all adopt one deck high-strength band and a bag wall to be combined into integral body and to form side reinforced bands near water; Pipe bag near water side side reinforced bands extends outward impervious blanket, and arranges little sand pocket gland with one; Near two ends of pipe bag, ring-stiffened band is being set and is being combined into integral body with side reinforced bands; Ring-stiffened band extends to form end reinforcement antiseepage curtain to direction of both ends, being connected with original metope near concrete flood control wall place, with anchorage element, carries out anchoring sealing; End reinforcement antiseepage curtain and impervious blanket are linked to be integral body, the water-retaining structure of sealing together with forming together with the rectangular pipe bag of arch;
The rectangular pipe bag of described arch is that cross section is rectangular pipe bag oval, that axis is arch, and pipe bag near water upper lateral part is provided with some mouth and closing cocks of charging, and bagging is cloth two films that polyamide fibre canvas and neoprene are composited, and intensity high permeability resistant can be good;
Described impervious blanket is connected with pipe bag and extends outward side outer wall bottom near water from pipe bag, and impervious blanket width is 1～1.5m, with the little sand pocket gland of a row, to extend seepage paths, reduces seepage;
Described ring-stiffened band is arranged on pipe bag Bing Yu side, two ends reinforced bands and is combined into integral body;
Described end reinforcement antiseepage curtain is connected with a pipe bag ring-stiffened band and to end, extends to form horn-likely, and is being connected with original metope at the wall place that controls flood near concrete, and anchoring sealing is carried out with anchorage element in junction;
The described pipe bag extended impervious blanket in bottom and the extended reinforcement antiseepage in end curtain are being linked to be integral body near flood protection wall the foot of a wall place, thus the water-retaining structure of sealing together with forming together with pipe bag.
2. based on city claimed in claim 1 tidal river concrete flood control wall, keep in repair the construction method with Temporary Cofferdam, comprise the following steps:
(1) in the preparatory stage, customize a collection of different length and section and with the rectangular pipe bag of arch of impervious blanket, side reinforced bands, ring-stiffened band and end reinforcement antiseepage curtain and the little sand pocket of respective numbers, and be equipped with the anchoring containment members such as sufficient rubber sheet gasket, steel bar, nut and dilating screw;
(2), after determining certain the section concrete flood protection wall that need to contain, the flood protection wall length of containing is as required selected the arch tube bag of corresponding length, the anchorage element of respective numbers;
(3) outside flood protection wall, approximately the demarcation of 2～3m place need to be laid the axial location of arch tube bag and the position of anchoring, and mark is carried out in this position;
(4) folding arch tube bag is launched to lay along axis direction, then impervious blanket is launched, and at row's gravelstone bag gland for outer ledge;
(5) the reinforcement antiseepage curtain of two ends of arch tube bag is connected with concrete flood control wall land side metope, and is anchored on metope with anchoring containment members such as rubber sheet gasket, steel bar, nut and dilating screws;
(6) after completing the installation and anchoring of pipe bag, with water pump, be connected on to charge on mouth and carry out water-filling, pipe bag is heaved while closing on preset height, by controlling filling opening pressure, makes pipe bag reach final height;
(7) when pipe bag reaches after preset height, closing cock is tightened to sealing, finally formed the water-retaining structure of a sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410136839.8A CN103967026B (en) | 2014-04-04 | 2014-04-04 | A kind of city tidal river concrete flood protection wall maintenance Temporary Cofferdam and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410136839.8A CN103967026B (en) | 2014-04-04 | 2014-04-04 | A kind of city tidal river concrete flood protection wall maintenance Temporary Cofferdam and construction method |
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| CN103967026A true CN103967026A (en) | 2014-08-06 |
| CN103967026B CN103967026B (en) | 2015-09-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106193074A (en) * | 2016-07-14 | 2016-12-07 | 长江勘测规划设计研究有限责任公司 | The steel cofferdam repaired for channel |
| CN106337424A (en) * | 2016-10-20 | 2017-01-18 | 长江勘测规划设计研究有限责任公司 | Cofferdam semi-enclosed type foundation pit without interrupting water conveying during canal lining restoration and method |
| CN106381842A (en) * | 2016-10-20 | 2017-02-08 | 长江勘测规划设计研究有限责任公司 | Canal lining repair buried pipe water transfer and cofferdam intercepted foundation pit and method |
| CN106381843A (en) * | 2016-10-20 | 2017-02-08 | 长江勘测规划设计研究有限责任公司 | Canal lining fastland repair foundation pit drainage structure and method without interruption of water transfer |
| CN106400746A (en) * | 2016-10-20 | 2017-02-15 | 长江勘测规划设计研究有限责任公司 | Water delivery of by-pass pipe and cofferdaming truncation-typed foundation trench and method for canal lining repairing |
| CN106545022A (en) * | 2016-10-20 | 2017-03-29 | 长江勘测规划设计研究有限责任公司 | Cofferdam island foundation pit structure and method under the conditions of water delivery is not interrupted in canal lining reparation |
| CN112695707A (en) * | 2020-12-30 | 2021-04-23 | 新疆水利水电科学研究院 | Rubber bedding for concrete bottom plate of pre-buried type water passing building and control method |
| CN114606978A (en) * | 2022-03-11 | 2022-06-10 | 中国建筑一局(集团)有限公司 | Temporary plugging device for well chamber water inlet |
| CN114775663A (en) * | 2022-05-20 | 2022-07-22 | 上海建工一建集团有限公司 | Fast emergency cofferdam for foundation pit enclosure wall and construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106193074A (en) * | 2016-07-14 | 2016-12-07 | 长江勘测规划设计研究有限责任公司 | The steel cofferdam repaired for channel |
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| CN106545022A (en) * | 2016-10-20 | 2017-03-29 | 长江勘测规划设计研究有限责任公司 | Cofferdam island foundation pit structure and method under the conditions of water delivery is not interrupted in canal lining reparation |
| CN106337424B (en) * | 2016-10-20 | 2018-06-15 | 长江勘测规划设计研究有限责任公司 | Cofferdam semi-wrapped style foundation pit and method under the conditions of water delivery are not interrupted in canal lining reparation |
| CN106545022B (en) * | 2016-10-20 | 2018-09-14 | 长江勘测规划设计研究有限责任公司 | Cofferdam island foundation pit structure and construction method under the conditions of water delivery are not interrupted in canal lining reparation |
| CN106400746B (en) * | 2016-10-20 | 2018-10-19 | 长江勘测规划设计研究有限责任公司 | Canal lining repairs bypass pipe water delivery and cofferdam clean cut system foundation pit and construction method |
| CN106381843B (en) * | 2016-10-20 | 2018-10-19 | 长江勘测规划设计研究有限责任公司 | One kind not interrupting canal lining under water delivery and repairs drainage of foundation pit structure and construction method dryly |
| CN106381842B (en) * | 2016-10-20 | 2019-10-08 | 长江勘测规划设计研究有限责任公司 | Canal lining repairs pipe laying water delivery and cofferdam clean cut system foundation pit and construction method |
| CN112695707A (en) * | 2020-12-30 | 2021-04-23 | 新疆水利水电科学研究院 | Rubber bedding for concrete bottom plate of pre-buried type water passing building and control method |
| CN114606978A (en) * | 2022-03-11 | 2022-06-10 | 中国建筑一局(集团)有限公司 | Temporary plugging device for well chamber water inlet |
| CN114775663A (en) * | 2022-05-20 | 2022-07-22 | 上海建工一建集团有限公司 | Fast emergency cofferdam for foundation pit enclosure wall and construction method thereof |
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| CN103967026B (en) | 2015-09-23 |
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