CN105442631A - Double plastic pipe and plastic shaft type leakage detecting device for collapsible loess region - Google Patents
Double plastic pipe and plastic shaft type leakage detecting device for collapsible loess region Download PDFInfo
- Publication number
- CN105442631A CN105442631A CN201511005207.9A CN201511005207A CN105442631A CN 105442631 A CN105442631 A CN 105442631A CN 201511005207 A CN201511005207 A CN 201511005207A CN 105442631 A CN105442631 A CN 105442631A
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- Prior art keywords
- well
- plastic
- leak detection
- leakage detection
- leak
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0006—Plastics
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
A double plastic pipe and plastic shaft type leakage detecting device for a collapsible loess region comprises working pipelines, upstream leakage detection shafts, downstream leakage detection shafts and manholes, wherein the outer surface of each working pipeline is sleeved with a plastic protecting sleeve; a closed leakage detection space is formed between the outer wall of each working pipeline and the inner wall of the corresponding plastic protecting sleeve; the closed leakage detection space formed in a position where each working pipeline and each plastic protecting sleeve abut on the wall of the corresponding leakage detection shaft is in sealing connection with the wall of the corresponding leakage detection shaft through a sealing ring; a short pipe is arranged in each sealing ring; one end of each short pipe communicates with the corresponding closed leakage detection space, and the other end of each short pipe is positioned in the corresponding leakage detection shaft and is provided with a water draining valve and a pressure gauge. The device is applied to a place, where pipe ducts and the leakage detection shafts are to be arranged, in the collapsible loess region, according to the articles of Code for Building Construction in Collapsible Loess Region GB50025-2004. The device is low in construction cost, low in labor intensity, and good in leakage detection effect.
Description
Technical field
The invention belongs to the municipal facilities of outdoor, one residential, be applicable to Collapsible Loess District exterior components pipeline laying leak detection and use, specifically the two-tube facility of hunting leak with plastic well of a kind of Collapsible Loess District plastics.
Background technology
In settlement by soaking area due to the existence of the settlement by soaking in place, cause differential settlement to the own basis of building foundation, road and pipeline and subside in the water yield of secondary water amount rainwater flood or pipeline self leakage loss, structural damage safety.Collapsible Loess District exterior components pipeline laying, generally adopts and lays leak detection trench and leak detection well in guard plot, by leak detection trench and the leak detection well discovery pipe leakage point of civil engineering structure, so that maintain and replace pipe-line system.But because civil engineering leak detection system cost is high, even expense reaches the several times of institute's protective conduit system investments, has the sensation of putting the cart before the horse; And civil engineering leak detection system efficiency is low, it is large to take up an area, difficulty of construction is large, once leakage loss can increase intractability.For this reason, need a kind ofly to economize on the use of funds, pipeline self leak hunting technology of constructability, illustrate in 5.5.5 at " Code for building construction in collapsible loess zone " GB50025-2004 provision and propose a kind of plastic pipe technique with insulation layer, be called " tube-in-tube " technology, but we think itself and unreliable.
Summary of the invention
The technical problem to be solved in the present invention is to provide that a kind of construction cost is low, the two-tube facility of hunting leak with plastic well of Collapsible Loess District plastics that are reliable for effect, that leak pipeline section accurate positioning of hunting leak.
It is as follows that the present invention solves the problems of the technologies described above taked technical scheme: the two-tube facility of hunting leak with plastic well of a kind of Collapsible Loess District plastics, comprises service pipe, upstream leak detection well, downstream leak detection well, manhole; It is characterized in that: outside service pipe, be set with plastic protection sleeve pipe, airtight leak detection space is provided with between service pipe outer wall and plastic protection internal surface of sleeve pipe, the airtight leak detection space of service pipe and plastic protection sleeve pipe and leak detection well borehole wall docking location, to be connected with well Well-wall sealer of hunting leak by joint ring, be provided with short tube in joint ring, short tube one end is communicated with airtight leak detection space, the other end is positioned at and hunts leak well and be provided with drain valve and pressure meter.
Plastic protection sleeve pipe is identical with the tubing material of service pipe; Leak detection well is plastics leak detection well.Drain valve is provided with the drain valve action bars as operating grip, and the other end of drain valve action bars is positioned at and is bordering on leak detection well head place; Like this, staff can at terrestrial operation drain valve.
Plastic protection sleeve pipe has been installed in the present invention additional outside service pipe, the space reserved between service pipe and plastic protection sleeve pipe double-skin duct is as airtight leak detection space, and the airtight leak detection space of double-skin duct with leak detection well borehole wall docking location is connected with leak detection well Well-wall sealer with encapsulant, and the fluid in service pipe normally flows out, seal cavity short tube has picked out pressure meter and drain valve.If this section of service pipe leaks, sluicing will fill this section of confined space, to be checkedly undetectedly look into middle unlatching drain valve, having leaks from short tube flows out, the short tube outlet of gravity current pipeline should be connected to the position being convenient to beyond overflow observe, pressure current pipeline such as sluicing pressure meter will produce reading, thus judge leakage rate size and the need of replacing instrumentation tubes.
The present invention is applicable to Collapsible Loess District need arrange leak detection pipe trench and leak detection well place according to " Code for building construction in collapsible loess zone " GB50025-2004 provision.Compare with hunt leak trench and well of hunting leak of civil engineering steel concrete, material that the present invention adopts has water proofing property more, the waterproof effect of UPVC pipeline is better, although material adds protection tube, it is a lot of that the cost compared with steel concrete leak detection trench always knows from experience saving; Plastic inspection well room is smaller, is prefabricated component, also can reduces investment outlay; Construction cost is lower, and labour intensity reduces; Leak detection better effects if.
At present, the leak detection system of civil engineering bulky complex, widely using in the yard piping of Collapsible Loess District, not only increases the unfavorable factors such as construction cost, also leaves hidden danger to workmanship." leaking and do not leak, where leak, how to find " is an idea problem, is also an economic science problem.In today that plastics industry science and technology is flourishing, the present invention solves the technical scheme that leak detection provides a kind of practicality, low cost, the accurate positioning of leakage pipeline section.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention is applied to gravity current pipeline;
Fig. 2 is the top view of Fig. 1;
Fig. 3 the present invention is applied to the structural representation of pressure current pipeline;
Fig. 4 is the top view of Fig. 3;
Fig. 5 is the structural relation figure between drain valve, pressure meter and joint ring, airtight leak detection space.
In figure: 1-downstream leak detection well, 2-plastic protection sleeve pipe, 3-service pipe, 4-upstream leak detection well, 5-airtight leak detection space, 6-drain valve, 7-pressure meter, 8-grade, 9-drain valve action bars, 10-joint ring, 11-manhole, 12-chute.
Detailed description of the invention
Embodiment 1; The present embodiment is used for pressure current pipeline.As shown in Figure 3 and Figure 4: the two-tube facility of hunting leak with plastic well of a kind of Collapsible Loess District plastics, comprises the service pipe 3 be embedded in below grade 8, upstream leak detection well 4, downstream leak detection well 1, manhole 11; It is characterized in that: outside service pipe 3, be set with plastic protection sleeve pipe 2, airtight leak detection space 5 is provided with between service pipe 3 outer wall and plastic protection sleeve pipe 2 inwall, the airtight leak detection space 5 of service pipe 3 and plastic protection sleeve pipe 2 and leak detection well borehole wall docking location, to be connected with well Well-wall sealer of hunting leak by joint ring 10, be provided with short tube in joint ring 10, short tube one end is communicated with airtight leak detection space 5, the other end is positioned at and hunts leak well and be provided with drain valve 6 and pressure meter 7.The encapsulant that joint ring 10 uses can be the plastic components of rubber ring or similar bushing.
As of the present invention perfect; Drain valve 6 is provided with the drain valve action bars 9 as operating grip, and the other end of drain valve action bars 9 is positioned at and is bordering on leak detection well head place; Like this, staff can at terrestrial operation drain valve 6.
Plastic protection sleeve pipe 2 is identical with the tubing material of service pipe 3; Leak detection well is plastics leak detection well.
Embodiment 2; The present embodiment is used for gravity current pipeline.The downstream leak detection well 1 of the gravity current pipeline of prior art is hunted leak in well 4 well with upstream, with the chute 12 of two ends service pipe UNICOM in being provided with; So, as shown in Figures 1 and 2: the short tube outlet of gravity current pipeline should be connected to the position being convenient to beyond overflow observe, when drain valve 6 is opened, even if do not observe pressure meter 7, also short tube can be exported leak to distinguish with the fluid that normally flows out in service pipe is come.All the other are identical with embodiment 1.
During engineering design is implemented, first, by " Code for building construction in collapsible loess zone " GB50025-2004 and " the outdoor water supply and drainage pipe works in Collapsible Loess District structure " S531-1-5, determine the scope using steel concrete leak detection trench and leak detection well.Then adopt the technology of the present invention to replace original soil and build steel concrete leak detection trench and leak detection well.Construction in line with the drawings, regularly hunts leak, record pressure and sluicing value, regularly with last comparing, in conjunction with other factor determination leakage loss pipeline section positions.
Concrete operations: air tight test can be done to confined space between the construction time of completion.Airtight leak detection space can adopt pressure gauge connection, carries out air and suppresses testing conduit leakage situation.In use procedure, during once leak detection checked at 7 days to one month, record pressure tabular value and bleeder quantity size in each each well, according to the contrast with upper secondary data, and other parameters such as surface collapse observation value etc. determines the concrete pipeline section of pipeline leakage; Determine to change concrete pipeline section.
Shi Mou community is applied the present invention and prior art steel concrete and to be hunted leak the citing comparative illustration of trench below: 200,000 square metres, one residential, outdoor cell sewage network caliber is generally between De300 ~ De400, residue wet limitation 150mm is still had, sewage Double-well 200 after place settlement by soaking processes.Outdoor sewage pipe network length 5563 meters, leak detection trench (steel concrete 800x800).Cost compares:
Adopt leak detection trench steel concrete (San Lianjing wouldn't contrast):
200x0.15+5563x0.12+5563x0.016=786.57 ten thousand yuan;
Adopt plastics two-tube (well) leak hunting technology:
200x0.15+5563x0.016+5563x0.025=258.08 ten thousand yuan.
Save 528.51 ten thousand yuan, close to the twice of new technology 258.08 ten thousand yuan investment.
Claims (4)
1. the two-tube facility of hunting leak with plastic well of Collapsible Loess District plastics, comprises the service pipe be embedded in below grade, upstream leak detection well, downstream leak detection well, manhole; It is characterized in that: be set with plastic protection sleeve pipe (2) in service pipe (3) outside, airtight leak detection space (5) is provided with between service pipe (3) outer wall and plastic protection sleeve pipe (2) inwall, the airtight leak detection space (5) of service pipe (3) and plastic protection sleeve pipe (2) and leak detection well borehole wall docking location, to be connected with leak detection well Well-wall sealer by joint ring (10), in joint ring (10), to be provided with that short tube one end is communicated with airtight leak detection space (5), the other end is positioned at and hunts leak well and be provided with drain valve (6) and pressure meter (7).
2. the two-tube facility of hunting leak with plastic well of a kind of Collapsible Loess District as claimed in claim 1 plastics, is characterized in that: drain valve (6) is provided with drain valve action bars (9), and the other end of drain valve action bars (9) is positioned at and is bordering on leak detection well head place.
3. the two-tube facility of hunting leak with plastic well of a kind of Collapsible Loess District as claimed in claim 1 or 2 plastics, is characterized in that: plastic protection sleeve pipe (2) is identical with the tubing material of service pipe (3); Leak detection well is plastics leak detection well.
4. the two-tube facility of hunting leak with plastic well of a kind of Collapsible Loess District as claimed in claim 3 plastics, is characterized in that: joint ring (10) is the plastic components of rubber ring or similar bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511005207.9A CN105442631B (en) | 2015-12-29 | 2015-12-29 | The two-tube leak detection facility with plastic well of Collapsible Loess District plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511005207.9A CN105442631B (en) | 2015-12-29 | 2015-12-29 | The two-tube leak detection facility with plastic well of Collapsible Loess District plastics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105442631A true CN105442631A (en) | 2016-03-30 |
| CN105442631B CN105442631B (en) | 2018-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511005207.9A Active CN105442631B (en) | 2015-12-29 | 2015-12-29 | The two-tube leak detection facility with plastic well of Collapsible Loess District plastics |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638695A (en) * | 2016-09-23 | 2017-05-10 | 中国航空规划设计研究总院有限公司 | Leakage detection ditch for building protection in large-thickness collapsible loess area |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000027211A (en) * | 1998-07-09 | 2000-01-25 | Mitsui Constr Co Ltd | Connection reinforcing method for existing pipe |
| CN2550621Y (en) * | 2002-07-18 | 2003-05-14 | 上海益能电力工程有限公司 | Directly buried leakage detecting type corrugated pipe compensation joint |
| CN201165703Y (en) * | 2008-03-21 | 2008-12-17 | 四川天鑫塑胶管业有限公司 | Leak detection plastic inspection shaft for collapsible loess area |
| CN201254734Y (en) * | 2008-05-23 | 2009-06-10 | 贵阳铝镁设计研究院 | Outdoor leak detection pipe ditch infall structure |
| CN102561396A (en) * | 2010-12-21 | 2012-07-11 | 金德管业集团有限公司 | Plastic inspection well and manufacturing method thereof |
| CN102561501A (en) * | 2010-12-09 | 2012-07-11 | 中铝国际技术发展有限公司 | Pressure pipeline leakage detection pipe ditch for collapsible loess regions |
| CN203948956U (en) * | 2014-06-26 | 2014-11-19 | 内蒙古电力勘测设计院有限责任公司 | The leak test plant of directly buried pipeline |
| CN204080862U (en) * | 2014-07-11 | 2015-01-07 | 辽宁远东新型管业发展有限公司 | With the waterproof short tube through walls of earrings |
| CN205348220U (en) * | 2015-12-29 | 2016-06-29 | 中国市政工程西北设计研究院有限公司 | Double -barrelled and plastics well leak hunting facility of collapsible loess area plastics |
-
2015
- 2015-12-29 CN CN201511005207.9A patent/CN105442631B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000027211A (en) * | 1998-07-09 | 2000-01-25 | Mitsui Constr Co Ltd | Connection reinforcing method for existing pipe |
| CN2550621Y (en) * | 2002-07-18 | 2003-05-14 | 上海益能电力工程有限公司 | Directly buried leakage detecting type corrugated pipe compensation joint |
| CN201165703Y (en) * | 2008-03-21 | 2008-12-17 | 四川天鑫塑胶管业有限公司 | Leak detection plastic inspection shaft for collapsible loess area |
| CN201254734Y (en) * | 2008-05-23 | 2009-06-10 | 贵阳铝镁设计研究院 | Outdoor leak detection pipe ditch infall structure |
| CN102561501A (en) * | 2010-12-09 | 2012-07-11 | 中铝国际技术发展有限公司 | Pressure pipeline leakage detection pipe ditch for collapsible loess regions |
| CN102561396A (en) * | 2010-12-21 | 2012-07-11 | 金德管业集团有限公司 | Plastic inspection well and manufacturing method thereof |
| CN203948956U (en) * | 2014-06-26 | 2014-11-19 | 内蒙古电力勘测设计院有限责任公司 | The leak test plant of directly buried pipeline |
| CN204080862U (en) * | 2014-07-11 | 2015-01-07 | 辽宁远东新型管业发展有限公司 | With the waterproof short tube through walls of earrings |
| CN205348220U (en) * | 2015-12-29 | 2016-06-29 | 中国市政工程西北设计研究院有限公司 | Double -barrelled and plastics well leak hunting facility of collapsible loess area plastics |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638695A (en) * | 2016-09-23 | 2017-05-10 | 中国航空规划设计研究总院有限公司 | Leakage detection ditch for building protection in large-thickness collapsible loess area |
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| Publication number | Publication date |
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| CN105442631B (en) | 2018-04-06 |
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