CN103967026B - A kind of city tidal river concrete flood protection wall maintenance Temporary Cofferdam and construction method - Google Patents
A kind of city tidal river concrete flood protection wall maintenance Temporary Cofferdam and construction method Download PDFInfo
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- CN103967026B CN103967026B CN201410136839.8A CN201410136839A CN103967026B CN 103967026 B CN103967026 B CN 103967026B CN 201410136839 A CN201410136839 A CN 201410136839A CN 103967026 B CN103967026 B CN 103967026B
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Abstract
The invention discloses a kind of city tidal river concrete flood protection wall maintenance Temporary Cofferdam and construction method, described Temporary Cofferdam is made up of arch tube bag, side reinforced bands, ring-stiffened band, impervious blanket, end reinforcement antiseepage curtain and anchorage element.Pipe bag near water upper lateral part establish some punchings, discharge water charge mouth and closing cock, be all compounded to form side reinforced bands with high-strength band entirety with backwater side pocket wall near water; Side, side reinforced bands extends outward impervious blanket near water, and arranges little sand pocket gland with one; Pipe bag two ends arrange ring-stiffened band and are combined into entirety with side reinforced bands, and ring-stiffened band stretches out and forms trumpet-shaped end reinforcement antiseepage curtain, is connected with original metope, and it is closed to carry out anchoring with anchorage element; End reinforcement antiseepage curtain and impervious blanket are linked to be entirety, form closed water-retaining structure together with arch tube bag.The present invention have structure simple, safe and reliable, be convenient to accumulating, quick construction, can reuse, the advantage such as environmental protection.
Description
Technical field
The present invention relates to hydraulic engineering technical field, particularly a kind of city tidal river concrete flood protection wall maintenance Temporary Cofferdam and construction method.
Background technology
Gather in the network of waterways, China coast Hekou Area, two sides, river for the dyke flood protection wall quantity of controlling flood and length huge, urban district tidal river concrete flood protection wall often needs reinforcement maintenance, carry out when being typically chosen in low tide, but because maintenance and reinforcement construction cannot complete within a tidal period, so the maintenance period needs the breach of a kind of temporary water dash structure to maintenance section to carry out enclosing, namely need to construct Temporary Cofferdam.
Before making the present invention, the Temporary Cofferdam adopted during coastal cities tidal river concrete flood protection wall maintenance and reinforcement mainly contains three kinds: packed earth embankment, large-scale brick construction and assembly type plate Temporary Cofferdam.Packed earth embankment soil amount is many, and fetch earth difficulty, 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 needs 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 needs a large amount of manpower and materials, and build and remove length consuming time, not reproducible utilization causes waste, affects road traffic and destroys 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 ground, needs fluting or piling, easily destroy road surface and roadbed, and be connected with dyke and corner easily leaks, can not be completely closed.
Summary of the invention
The object of the invention is to overcome the deficiency that above-mentioned existing Temporary Cofferdam can not meet coastal cities tidal river concrete flood protection wall maintenance and reinforcement temporary water dash requirement, a kind of arch anchoring type charging pipe bag Temporary Cofferdam and construction method thereof are proposed, this cofferdam structure form is reasonable, safety and stability, connecting sealed are 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 protection wall maintenance, is characterized in that: Temporary Cofferdam is made up 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 and somely charges mouth and closing cock, and for rapid water filling with discharge water, at pipe bag, side and land side all adopt one deck high-strength band and bag wall to be combined into entirety and to form side reinforced bands near water; The side reinforced bands of pipe bag side near water extends outward impervious blanket, and with little sand pocket gland to extend seepage paths, to reduce seepage; In side reinforced bands, ring-stiffened band is set near pipe bag two ends, so that the pulling force of pipe bag bag wall axis direction by the side reinforced bands of inside and outside both sides being passed to whole cross-section flour bag wall, thus effectively disperse pulling force, pipe bag ring-stiffened band extends to two end directions, form trumpet-shaped end reinforcement antiseepage curtain, be connected with original metope near concrete flood protection wall place, and closing with anchorage element anchoring; End reinforcement antiseepage curtain and impervious blanket are linked to be entirety, the water-retaining structure closed together with being formed together with the rectangular pipe bag of arch.
Described arch rectangular pipe bag is cross section is oval, that axis is arch rectangular pipe bag, pipe bag near water upper lateral part is provided with several and charges mouth and closing cock, bagging is cloth two film (as polyamide fibre canvas and neoprene) that intensity high permeability resistant can be good, and pipe bag can make various length, profile height and color as required;
Described side reinforced bands is separately positioned on the side of pipe bag side and land side near water, and is combined into an entirety with pipe bag wall;
The side reinforced bands of described impervious blanket and pipe bag side is near water connected, and extends outward bottom pipe bag near water side outer wall, for extending seepage paths and reducing seepage;
Described ring-stiffened band is arranged on pipe bag two ends and is connected with side direction reinforced bands, and be combined with each other with the bag wall of whole section, the pulling force of pipe bag bag wall axis direction by the side reinforced bands of inside and outside both sides being passed to whole cross-section flour bag wall, thus effectively disperse pulling force.
Described end reinforcement antiseepage curtain is connected with pipe bag ring-stiffened band, formed horn-like after extending to end, and be connected with original metope near concrete flood protection wall place, junction steel bar and rubber gasket are pushed down, and use expansion screw rod and nut to carry out anchoring sealing.
The reinforcement antiseepage curtain that the impervious blanket extended bottom described pipe bag and end are extended is being linked to be entirety near flood protection wall the foot of a wall place, thus the water-retaining structure closed together with being formed together with rectangular pipe bag.
The invention still further relates to the construction method of described 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 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 needing to contain, the body of wall length contained as required selects the rectangular pipe bag of arch of corresponding length, the anchorage element of respective numbers, and the pipe bag folded and anchorage element are transported to scene;
(3) after pipe bag and anchorage element are transported to scene, outside flood control dike, about 2 ~ 3m place is demarcated needs to lay the position of arch tube bag axis and the position of anchoring, and marks this position;
(4) folding arch tube bag is launched in the axial direction lay, then impervious blanket is launched, and unanimously arrange gland at the little sand pocket of outer ledge;
(5) be connected with concrete flood protection wall by two of pipe bag end reinforcement antiseepage curtains, the anchorage elements such as blend rubber pad, steel bar, nut and dilating screw are anchored on metope;
(6) after the installation completing pipe bag and anchoring, be connected on several water pumps and carry out water-filling every charging on mouth of 10m, when pipe bag is heaved and closed on preset height, by controlling the final height of filling opening pressure control pipe bag;
(7) after pipe bag reaches preset height, closing cock is tightened closed, finally define a closed water-retaining structure;
(8) after concrete flood protection wall maintenance and reinforcement completes, the water body in pipe is released, pack up pipe bag afterflush clean, pipe bag and anchorage element are transported to warehouse storage, use again in order to next time.
Compared with prior art, advantage of the present invention and effect are:
(1) fully adopt the principle of arch, the hydrostatic pressure of radial direction is transferred to hoop axle pulling force, rely on inside and outside both sides reinforced bands and ring-stiffened band to hold pipe bag, ensure that pipe bag is filling, discharges water and keeping in water blocking process overall stability and security;
(2) structural shape is fairly simple, and all parts all can in advance in factory's batch production, and the little quality of volume is light, stores and convenient transportation, time saving and energy saving;
(3) adopt arch rectangular pipe bag dash, take full advantage of the flexibility of pipe bag, to ground better adaptability, can flexibly, be effectively applied to engineering reality;
(4) pipe bag two ends adopt tunneling boring reinforced bands antiseepage curtain respectively, reinforcement antiseepage curtain is connected with original concrete flood protection 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 both sides inside and outside pipe bag, effectively disperse pulling force, improve degree of safety and the reliability of pipe bag material and anchor structure, and play closed sealing effect simultaneously;
(5) construction sequence is simple and direct, can Fast Installation and dismounting, can reuse;
(6) pipe bag and antiskid base color optional, urban road surfaces and view can not be destroyed, 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 detailed description of the invention, 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 partial enlargement of A position;
Elevation in Fig. 4 Fig. 1 after the partial enlargement of A position;
Lateral view in Fig. 5 Fig. 1 after the partial enlargement of 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 protection wall, 8, mouth is charged, 9, closing cock, 10, little sand pocket, 11, rubber sheet gasket, 12, steel bar, 13, nut, 14, dilating screw.
Detailed description of the invention
As shown in Figure 1 to 4, the Temporary Cofferdam of a kind of city tidal river concrete flood protection wall maintenance, is made up 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 in the axial direction every 10m near water upper lateral part establish and charge mouth 8 and closing cock 9, rapid water filling can be carried out and discharge water; Pipe bag 1 extends outward impervious blanket 2 bottom the outer wall of side near water, and width is about 1m, and arranges gland to extend seepage paths, reduction seepage with the little sand pocket 10 of a row along pipe bag axis direction; Pipe bag 1 near water side and land side all adopts one deck high-strength band and wall to be combined into an entirety to form side reinforced bands 2; Be with at side reinforcement 2 and ring-stiffened band 3 is set to tunneling boring diffusion position, the pulling force of pipe bag 1 bag of wall axis direction is uploaded to the bag wall in whole cross section by the side reinforced bands 2 of inside and outside both sides, thus effectively disperse bag wall pulling force; Pipe bag 1 two ends are extended to two ends by ring-stiffened band 3, form trumpet-shaped end reinforcement antiseepage curtain 5, and being near concrete flood protection wall 7, original metope is connected; And it is closed to carry out anchoring with anchorage element 6; Anchorage element 6 is made up 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 entirety, the water-retaining structure closed together with being formed together with pipe bag 1.
The construction method of the Temporary Cofferdam of described city tidal river concrete flood protection wall maintenance, comprises the following steps:
(1) in the preparatory stage, first customize a collection of length be the various model such as 10m, 20m, 30m, 50m, 80m and with the rectangular pipe bag 1 (can make by hot vulcanization process or cold bonding technique) of the arch 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 the rubber sheet gasket 11 of abundance, steel bar 12, nut 13 and dilating screw 14;
(2) after determining certain the section concrete flood protection wall 7 needing to contain, the length of the flood protection wall 7 contained as required selects the pipe bag 1 of equal length and the anchoring containment member 6 of respective numbers, first the pipe bag 1 folded and anchorage element 6 is transported to scene;
(3) after determining certain the section concrete flood protection wall 7 needing to contain, the length of the concrete flood protection wall 7 contained as required selects the arch tube bag 1 of corresponding length, the anchorage element 6 of respective numbers, and the pipe bag 1 folded and anchorage element 6 are transported to scene;
(4) after pipe bag 1 and anchorage element 6 are transported to scene, outside concrete flood protection wall 7, about 2 ~ 3m place is demarcated needs to lay the position of arch tube bag axis and the position of end anchorage, and marks this position;
(5) folding pipe bag 1 is laid in the axial direction, then impervious blanket 4 is launched, and unanimously arrange gland to extend seepage paths, to reduce seepage at the little sand pocket 10 of outer ledge;
(6) finally two of pipe bag 1 end reinforcement antiseepage curtains 5 are connected also anchoring with concrete flood protection wall 7, expansion screw rod 14 is squeezed in the position be first connected with concrete flood protection wall 7 metope in pipe bag 1 end during anchoring, again rubber sheet gasket 11 and end reinforcement antiseepage curtain 5 are passed expansion screw rod 14 and be close to the metope of concrete flood protection wall 7, push down with rubber sheet gasket 11 and the larger steel bar 12 of rigidity, then tighten with nut 14;
(7) after the installation completing pipe bag and anchoring, being connected on several water pumps and pouring water every charging on mouth of 10m, when pipe bag 1 is heaved and closed on preset height, slowing down water-filling speed so that accurately control valve bag 1 is highly final by controlling pump capacity;
(8) after reaching final preset height, closing cock 8 is tightened closed.Finally like this define a closed water-retaining structure;
(9) after concrete flood protection wall 7 maintenance and reinforcement completes, released by the water body in pipe bag 1, 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, thus realize recycling.
Claims (2)
1. a city tidal river concrete flood protection wall maintenance Temporary Cofferdam, is characterized in that: Temporary Cofferdam is made up 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 and somely charges mouth and closing cock; At pipe bag, side and land side all adopt one deck high-strength band and bag wall to be combined into entirety 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; Ring-stiffened band is being set near pipe bag two ends and is being combined into entirety with side reinforced bands; Ring-stiffened band extends to form end reinforcement antiseepage curtain to direction of both ends, is being connected with original metope near concrete flood protection wall place, carries out anchoring close with anchorage element; End reinforcement antiseepage curtain and impervious blanket are linked to be entirety, the water-retaining structure closed together with being formed together with the rectangular pipe bag of arch;
The rectangular pipe bag that to be cross section is described arch rectangular pipe bag is oval, axis is arch, pipe bag near water upper lateral part is provided with and somely charges mouth and closing cock, and bagging is cloth two film 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 bottom pipe bag near water side outer wall, and impervious blanket width is 1 ~ 1.5m, reduces seepage with the little sand pocket gland of a row to extend seepage paths;
Described ring-stiffened band is arranged on pipe bag two ends and is combined into entirety with side reinforced bands;
Described end reinforcement antiseepage curtain is connected with pipe bag ring-stiffened band and extends to form to end horn-like, and is being connected with original metope near concrete flood protection wall place, and junction anchorage element carries out anchoring and closes;
The reinforcement antiseepage curtain that the impervious blanket extended bottom described pipe bag and end are extended is being linked to be entirety near flood protection wall the foot of a wall place, thus the water-retaining structure closed together with being formed together with pipe bag.
2., based on the construction method of tidal river concrete flood protection wall maintenance Temporary Cofferdam in city according to claim 1, comprise the following steps:
(1) in the preparatory stage, customize a collection of different length and section and with impervious blanket, side reinforced bands, ring-stiffened band and the arch rectangular pipe bag of end reinforcement antiseepage curtain and the little sand pocket of respective numbers, and be equipped with sufficient rubber sheet gasket, steel bar, nut and dilating screw anchoring containment member;
(2) after determining certain the section concrete flood protection wall needing to contain, the flood protection wall length contained as required selects the arch tube bag of corresponding length, the anchorage element of respective numbers;
(3) outside flood protection wall, the demarcation of 2 ~ 3m place needs to lay the axial location of arch tube bag and the position of anchoring, and marks this position;
(4) folding arch tube bag is launched in the axial direction lay, then impervious blanket is launched, and at outer ledge one row's gravelstone bag gland;
(5) be connected with concrete flood protection wall land side metope by the reinforcement antiseepage curtain of arch tube bag two ends, blend rubber pad, steel bar, nut and dilating screw anchoring containment member are anchored on metope;
(6) after the installation completing pipe bag and anchoring, being connected on to charge on mouth with water pump and carrying out water-filling, when pipe bag is heaved and closed on preset height, making pipe bag reach final height by controlling filling opening pressure;
(7) after pipe bag reaches preset height, closing cock is tightened closed, finally define a closed water-retaining structure.
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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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| 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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| CN103967026B true CN103967026B (en) | 2015-09-23 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193074B (en) * | 2016-07-14 | 2018-01-30 | 长江勘测规划设计研究有限责任公司 | Steel cofferdam for channel 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4299514A (en) * | 1978-12-06 | 1981-11-10 | Bridgestone Tire Co., Ltd. | Collapsible rubber dam |
| CN2589509Y (en) * | 2002-05-24 | 2003-12-03 | 王晓晔 | Water-filling rubber dike |
| CN100389238C (en) * | 2002-08-15 | 2008-05-21 | 张谦 | Flexible dam with aid of buoyancy and its construction method |
| KR100778321B1 (en) * | 2006-06-27 | 2007-11-22 | 한국건설기술연구원 | Geosynthetics tube with internal non-penetration member |
| CN101205711A (en) * | 2006-12-18 | 2008-06-25 | 孙永 | Three-cavity water/gas filling expansion dam and cofferdam construction method |
| CN101538838A (en) * | 2009-04-17 | 2009-09-23 | 广西电力工业勘察设计研究院 | Application of rubber dam in cofferdam water retaining |
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