CN104612240B - A kind of use is losed heart the method being encapsulated stifled Large Diameter Pipeline storm sewer - Google Patents
A kind of use is losed heart the method being encapsulated stifled Large Diameter Pipeline storm sewer Download PDFInfo
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- CN104612240B CN104612240B CN201410775745.5A CN201410775745A CN104612240B CN 104612240 B CN104612240 B CN 104612240B CN 201410775745 A CN201410775745 A CN 201410775745A CN 104612240 B CN104612240 B CN 104612240B
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- capsule
- heart
- pipeline
- encapsulated
- losing heart
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
- E03F7/02—Shut-off devices
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a kind of use to lose heart the method being encapsulated stifled Large Diameter Pipeline storm sewer, comprise the steps: (1) reinforcing pipes, excavation of foundation pit；(2) cleaning foreign material；(3) capsule of losing heart, fixation are arranged；(4) lose heart capsule and air compressor are connected；(5) threeway air cock is checked；(6) pressurization inflation；(7) realize sealing；(8), after having worked, threeway air cock, aerofluxus are regulated；(9) capsule of losing heart pulls out.The present invention adopts and loses heart and be encapsulated stifled drain pipe, it is to avoid dismounting brick wall operation has great danger, and the legacy blocked is difficult to cleaning thoroughly, and the rubbish thing that the fluid in pipeline is mingled with may block pipeline, affects the use safety of pipeline；Save purchase commodity and use cost；Construction speed time cost is saved, and various expenses reduce；Reduce construction cost, the effect increased economic efficiency；Realize down-hole unmanned operation, it is ensured that operating personnel's safety, reduction of erection time.
Description
Technical field
The present invention relates to the realm of building construction, specifically refer to a kind of use and lose heart the method being encapsulated stifled Large Diameter Pipeline storm sewer.
Background technology
Current Some Domestic producer has produced the air bag of applicable pipe plugging, adopts air bag simple to operate and cheap when blocking, and is therefore generally used in urban duct closure.But the Large Diameter Pipeline closure size of air bag and weight are often due to excessively huge, add its difficulty deposited, transport and use.Being dependent on air bag due to closure and inner-walls of duct is combined closely and blocked what current passed through, after hydraulic pressure is more than 3 meters, the frictional force between air bag and tube wall can not fully against extraneous hydraulic pressure.Producer is in order to improve frictional force, it has to the length of increase closure air bag, but long air bag, exacerbates again the difficulty of use.
Summary of the invention
It is a kind of time saving and energy saving to it is an object of the invention to provide, and saves cost, and the use of reduction of erection time is losed heart the method being encapsulated stifled Large Diameter Pipeline storm sewer.
The present invention is achieved through the following technical solutions: a kind of use is losed heart the method being encapsulated stifled Large Diameter Pipeline storm sewer, comprises the steps:
(1) utilize steel sheet pile to carry out pipe strengthening, carry out excavation of foundation pit；
(2) open a hole foreign material within the scope of the upstream line 1～5m of room, it is ensured that punctures air bag without sharp object；
(3) in the first segment pipeline of upstream, well room, arrange capsule of losing heart, inflate end towards side, well room, capsule fixation of losing heart；
(4) lose heart capsule and air compressor are connected；
(5) threeway air cock is checked so that it is be in inflated condition；
(6) air compressor is started, pressurization inflation in capsule of losing heart；
(7) after short airbag inflation, internal diameter of the pipeline slowly it is full of, thus realizing sealing；
(8), after downstream has worked, regulate threeway air cock, be placed on exhaust condition；
(9) by capsule rear end water body thrust of losing heart, outside capsule of losing heart pull-out well.
Its working mechanism is the feature that after utilizing airbag aeration, volume hoop uniformly increases, and forms the physical characteristic of flexible cock body by underground piping internal diameter rounding and the frictional resistance bigger with the air bag rubber outer wall generation after expanding.Air bag has fully taken into account the air bag water pressure push effect to air bag behind in use, for result of use can be reached after guaranteeing airbag aeration safely, frictional resistance after airbag aeration and between inside pipe wall is slightly larger than the water pressure of air bag behind, and frictional resistance surplus coefficiert deposit is provided by the support force adopting auxiliary.
(1) pressure (P) produced by air bag water pressure dorsad:
P=ρ gh
The density of ρ water in formula；
G constant；
The height of h inspection shaft and pipeline water-filling sum.
(2) air bag water pressure (F) behind:
Know according to F=PS, F=P π R2
Pressure produced by P air bag water pressure dorsad in formula；
R drain pipe radius.
(3) frictional resistance (f) of air bag and inner-walls of duct:
F=μ0P0S
μ in formula0The coefficient of friction of rubber and solids, its value is 1～4；
p0Tube wall unit are pressure and air bag allow inflation pressure；
S air bag side developed area.
WhenAir bag is in safety and stability state after inflating in pipeline.
Adopting " lose heart and be encapsulated stifled Large Diameter Pipeline storm sewer " construction, namely purchase, in producer, capsule of losing heart, transport is to job site, rain pipe carries out cleaning reinforce, adopt mechanical engagement manpower or manpower installation in position, air bag is carried out auxiliary and supports, finally adopt air compressor that air bag is carried out qi of chong channel ascending adversely.
Compared with blocking with conventional pipelines, capsule of losing heart has obvious advantage: have wide applicability, and air bag plugging method is a kind of convenient, and saving of labor, timesaving preferred plan.Closure air bag can be widely used for waterproof test and the pipeline temporary plugging of drainage pipeline, its safety, durability, practicality and recyclability be other method for blocking incomparable.
Environmental benefit is good, and air-bag method blocks blocking pipe of building a wall with fragment of brick and compares, it is possible to saves the construction materials such as brick, sand, cement in a large number, can save land resource, protect farmland, and reduces and pollutes；Air bag plugging technology can be recycled when doing closed-water test water, thus having saved the water resource of preciousness to a great extent, therefore, air-bag method closure can produce good environmental benefit.
Air bag plugging construction has recycling performance, such that it is able to save engineering cost.
Air bag plugging construction, compared with pipe plugging method, is constructed convenient, because of decrease build by laying bricks or stones, maintenance and dismounting operation, therefore project progress is fast, little by factor interference such as rainfalls, thus having saved the time, it is ensured that total lever factor.
Removing brick wall operation and have great danger, and the legacy blocked is difficult to cleaning thoroughly, the rubbish thing that the fluid in pipeline is mingled with may block pipeline, affects the use safety of pipeline.
Air bag plugging construction can realize down-hole unmanned operation, it is to avoid the harm to personnel of the harmful gas in pipeline, ensure that the personal safety of operating personnel to greatest extent, and eliminate and leave over abutment sequela, is conducive to the operation safety of civilized construction and pipeline.
For realizing the inventive method better, further, in described step (2), the room upstream line that opens a hole range for 2m.
For realizing the inventive method better, further, in described step (4), capsule of losing heart is reinforced and is utilized well room to fix.Capsule of losing heart reinforcing utilizes well room to fix can supplement the frictional force reduced because shortening balloon length.
For realizing the inventive method better, further, in described step (4), capsule of losing heart is reinforced and is utilized two capsules of losing heart to support.Support can be supplemented the frictional force reduced because shortening balloon length by two capsules of losing heart.
For realizing the inventive method better, further, said two loses heart capsule to supportting employing leading screw by jail, air bag top.
For realizing the inventive method better, further, in described step (4), lose heart and be connected by air hose between capsule with air compressor.
For realizing the inventive method better, further, capsule of losing heart described in is fixedly arranged at the front end with two pulling ropes.Fix two pulling ropes in capsule front end of losing heart, convenient capsule of losing heart pulls out outside well, it is achieved down-hole unmanned operation.
For realizing the inventive method better, further, capsule of losing heart described in is rubber pneumatic bag.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) present invention adopts to lose heart and is encapsulated stifled drain pipe, avoid dismounting brick wall operation and there is great danger, and the legacy blocked is difficult to cleaning thoroughly, the rubbish thing that the fluid in pipeline is mingled with may block pipeline, affects the use safety of pipeline；
(2) present invention adopts to lose heart and is encapsulated stifled drain pipe, is greatly saved purchase commodity and use cost than long balloons；
(3) present invention takes to lose heart and is encapsulated stifled drain pipe, and 14 skies saved by construction speed time cost, reduce various expenses about 100,000；
(4) present invention tackling of key scientific and technical problems to deep pit digging supporting and the construction technology such as precipitation, Large Diameter Pipeline storm sewer installation, has also functioned to optimized construction procedure to greatest extent, reduces construction cost, the effect increased economic efficiency；
(5) the method for the invention construction is used can to realize down-hole unmanned operation, avoid the harm to personnel of the harmful gas in pipeline, ensure that the personal safety of operating personnel to greatest extent, and eliminate and leave over abutment sequela, be conducive to the operation safety of civilized construction and pipeline；
(6) the method for the invention construction substantially reduces engineering total lever factor, decreases the interference to surrounding.
Detailed description of the invention
Being described below in detail embodiments of the invention, wherein same or similar label represents same or similar element or has the element of same or like function from start to finish.The embodiments described below is illustrative of, and is only used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be for only for ease of the description present invention and simplifying and describe; rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.Additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", " second " only for descriptive purposes, and it is not intended that indicate or imply relative importance or implicitly include one or more these features.In describing the invention, except as otherwise noted, " multiple " are meant that two or more.
In describing the invention, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly；Can be mechanically connected, it is also possible to be electrical connection；Can also be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be the connection of two element internals.For the ordinary skill in the art, it is possible to concrete condition understands above-mentioned term concrete meaning in the present invention.
Embodiment:
The present embodiment discloses a kind of use and loses heart the method being encapsulated stifled Large Diameter Pipeline storm sewer, mainly solve Problems existing in closure Large Diameter Pipeline storm sewer process, study by the various construction methods that domestic and international drainage pipeline is blocked, compare, sum up, final optimization pass has been innovated and has been used the method being encapsulated stifled Large Diameter Pipeline storm sewer of losing heart, and specifically comprises the following steps that
(1) utilize steel sheet pile to carry out pipe strengthening, carry out excavation of foundation pit；
(2) open a hole foreign material within the scope of the upstream line 2m of room, it is ensured that punctures, without sharp object, capsule of losing heart；
(3) in the first segment pipeline of upstream, well room, arrange capsule of losing heart, inflate end towards side, well room, capsule fixation of losing heart；
(4) lose heart capsule and air compressor are connected；
(5) threeway air cock is checked so that it is be in inflated condition；
(6) air compressor is started, pressurization inflation in capsule of losing heart；
(7) after short airbag inflation, internal diameter of the pipeline slowly it is full of, thus realizing sealing；
(8), after downstream has worked, regulate threeway air cock, be placed on exhaust condition；
(9) by capsule rear end water body thrust of losing heart, outside capsule of losing heart pull-out well.
Wherein, capsule of losing heart reinforcing utilizes well room to fix or two capsules of losing heart use leading screws to support, lose heart and be connected by air hose between capsule with air compressor, capsule of losing heart is fixedly arranged at the front end with two pulling ropes, two pulling ropes are fixed in capsule front end of losing heart, convenient capsule of losing heart pulls out outside well, it is achieved down-hole unmanned operation, capsule of losing heart is rubber pneumatic bag.
Using loses heart is encapsulated stifled Large Diameter Pipeline storm sewer and need to do accurate calculating according to actual Construction Condition, and computing formula is as follows:
(1) pressure (P) produced by air bag water pressure dorsad:
P=ρ gh
The density of ρ water in formula；
G constant；
The height of h inspection shaft and pipeline water-filling sum.
(2) air bag water pressure (F) behind:
Know according to F=PS, F=P π R2
Pressure produced by P air bag water pressure dorsad in formula；
R drain pipe radius.
(3) frictional resistance (f) of air bag and inner-walls of duct:
F=μ0P0S
μ in formula0The coefficient of friction of rubber and solids, its value is 1～4；
p0Tube wall unit are pressure and air bag allow inflation pressure；
S air bag side developed area.
Design parameter according to actual construction site and the capsule of losing heart of use, makesThen can ensure to lose heart after capsule is inflated in pipeline and be in safety and stability state.
Adopting " lose heart and be encapsulated stifled Large Diameter Pipeline storm sewer " construction, namely purchase, in producer, capsule of losing heart, transport is to job site, rain pipe carries out cleaning reinforce, adopt mechanical engagement manpower or manpower installation in position, air bag is carried out auxiliary and supports, finally adopt air compressor that air bag is carried out qi of chong channel ascending adversely.
Compared with blocking with conventional pipelines, capsule of losing heart has obvious advantage: have wide applicability, and air bag plugging method is a kind of convenient, and saving of labor, timesaving preferred plan.Closure air bag can be widely used for waterproof test and the pipeline temporary plugging of drainage pipeline, its safety, durability, practicality and recyclability be other method for blocking incomparable.
Environmental benefit is good, and air-bag method blocks blocking pipe of building a wall with fragment of brick and compares, it is possible to saves the construction materials such as brick, sand, cement in a large number, can save land resource, protect farmland, and reduces and pollutes；Air bag plugging technology can be recycled when doing closed-water test water, thus having saved the water resource of preciousness to a great extent, therefore, air-bag method closure can produce good environmental benefit.
Air bag plugging construction has recycling performance, such that it is able to save engineering cost.
Air bag plugging construction, compared with pipe plugging method, is constructed convenient, because of decrease build by laying bricks or stones, maintenance and dismounting operation, therefore project progress is fast, little by factor interference such as rainfalls, thus having saved the time, it is ensured that total lever factor.
Removing brick wall operation and have great danger, and the legacy blocked is difficult to cleaning thoroughly, the rubbish thing that the fluid in pipeline is mingled with may block pipeline, affects the use safety of pipeline.
Air bag plugging construction can realize down-hole unmanned operation, it is to avoid the harm to personnel of the harmful gas in pipeline, ensure that the personal safety of operating personnel to greatest extent, and eliminate and leave over abutment sequela, is conducive to the operation safety of civilized construction and pipeline.
The capsule it is understood that lose heart according to an embodiment of the invention, the operation principle of the parts such as leading screw and work process are all prior aries, and known by those skilled in the art, are just no longer described in detail here.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or feature that this embodiment or example describe to combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: these embodiments can being carried out multiple change, amendment, replacement and modification under without departing from principles of the invention and objective, the scope of the present invention is limited by claim and equivalent thereof.
Claims (6)
1. a use is losed heart the method being encapsulated stifled Large Diameter Pipeline storm sewer, it is characterised in that: comprise the steps:
(1) utilize steel sheet pile to carry out pipe strengthening, carry out excavation of foundation pit；
(2) open a hole foreign material within the scope of the upstream line 1 ~ 5m of room, it is ensured that punctures, without sharp object, capsule of losing heart；
(3) in the first segment pipeline of upstream, well room, arrange capsule of losing heart, inflate end towards side, well room, capsule fixation of losing heart；
(4) connecting and lose heart capsule and air compressor, capsule of losing heart is reinforced and is utilized two capsules of losing heart to support, and support is adopted leading screw capsule top of will losing heart firm by said two capsule of losing heart；
(5) threeway air cock is checked so that it is be in inflated condition；
(6) air compressor is started, pressurization inflation in capsule of losing heart；
(7) after short airbag inflation, internal diameter of the pipeline slowly it is full of, thus realizing sealing；
(8), after downstream has worked, regulate threeway air cock, be placed on exhaust condition；
(9) by capsule rear end water body thrust of losing heart, outside capsule of losing heart pull-out well.
2. a kind of use according to claim 1 is losed heart the method being encapsulated stifled Large Diameter Pipeline storm sewer, it is characterised in that: in described step (2), the room upstream line that opens a hole range for 2m.
3. a kind of use according to claim 1 and 2 is losed heart the method being encapsulated stifled Large Diameter Pipeline storm sewer, it is characterised in that: in described step (4), capsule of losing heart is reinforced and is utilized well room to fix.
4. a kind of use according to claim 1 and 2 is losed heart the method being encapsulated stifled Large Diameter Pipeline storm sewer, it is characterised in that: in described step (4), lose heart and be connected by air hose between capsule with air compressor.
5. a kind of use according to claim 1 and 2 is losed heart the method being encapsulated stifled Large Diameter Pipeline storm sewer, it is characterised in that: described in capsule of losing heart be fixedly arranged at the front end with two pulling ropes.
6. a kind of use according to claim 1 and 2 is losed heart the method being encapsulated stifled Large Diameter Pipeline storm sewer, it is characterised in that: described in capsule of losing heart be rubber pneumatic bag.
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| CN106368304B (en) * | 2016-11-11 | 2019-01-08 | 江苏工程职业技术学院 | A kind of drain twists axis hole plugging device |
| CN111795252B (en) * | 2020-07-06 | 2021-09-24 | 深圳市市政工程总公司 | Water injection type water plugging air bag and use method thereof |
| CN113445607B (en) * | 2021-06-24 | 2022-06-07 | 中国葛洲坝集团生态环境工程有限公司 | Construction method for connecting inverted well wall in underground dense pipeline group |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH05148885A (en) * | 1991-11-29 | 1993-06-15 | Maeda Corp | Cut-off air bag, cut-off method of water channel by making use thereof and forming method of manhole invert by making use thereof |
| JPH08246545A (en) * | 1995-03-09 | 1996-09-24 | Yokoshima:Kk | Method of cleaning inside of duct |
| CN103669557B (en) * | 2013-12-09 | 2016-03-30 | 上海浦东新区公路建设发展有限公司 | Underground conduit dredging engineering method |
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