CN108194764A - The means of defence of underground piping during a kind of excavation pipe trench - Google Patents
The means of defence of underground piping during a kind of excavation pipe trench Download PDFInfo
- Publication number
- CN108194764A CN108194764A CN201711486513.8A CN201711486513A CN108194764A CN 108194764 A CN108194764 A CN 108194764A CN 201711486513 A CN201711486513 A CN 201711486513A CN 108194764 A CN108194764 A CN 108194764A
- Authority
- CN
- China
- Prior art keywords
- pipe trench
- sideline
- excavated
- existing pipeline
- defence
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/02—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets partly surrounding the pipes, cables or protective tubing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sewage (AREA)
- Pipeline Systems (AREA)
Abstract
The present invention relates to a kind of means of defence of underground piping during excavation pipe trench, including following construction procedure：Pipe trench center line is measured according to drawing before pipe canal digging, pipe trench sideline is made, and pass through lime and mark pipe trench sideline by defined ditch groove width according to construction pipe trench structure size size in center line both sides；Whether there is existing pipeline below ground, and be identified at the existing pipeline detected, and marked at existing 2 meters of pipeline both sides with lime and excavate sideline along what pipe trench image edge detection needs excavated；Pipe trench is excavated along pipe trench sideline by excavator, is excavated excavating to stopping when excavating at sideline；Artificial clear bottom is carried out to pipe trench according to design drawing and the center line measured, sideline, ensure that pipe trench size, center line and absolute altitude meet design requirement, it when excavating, is excavated due to stopping at existing two meters of pipeline with machinery, existing pipeline can be avoided to be dug to a certain extent disconnected.
Description
Technical field
The present invention relates to the means of defences of underground piping during a kind of Phase of Electric Power Projects technology, more particularly to excavation pipe trench.
Background technology
Nowadays direction power overhead network progress underground retrofit planned as future urban development, and overhead transmission line
Underground retrofit engineering in general is all fronts open trench tunnel, and pipeline is more along the line in the construction process, is not easy to earth excavation, existing to apply
Work method is unfavorable for the protection of pipeline.
Application publication number is a kind of means of defence of underground piping when the patent of CN105546278A discloses excavation pipe trench,
The suspention of existing pipeline I-shaped joist steel rail is got up in construction, pipeline is avoided to be damaged under its own gravity and external force effect,
But in the construction process, it will usually be excavated using big machinery, easily existing pipeline is dug when excavating and is broken, is caused not
Necessary economic loss.
Invention content
The purpose of the present invention is to provide a kind of means of defences of underground piping during excavation pipe trench, disconnected existing with being not easy to dig
The advantages of pipeline.
The present invention above-mentioned technical purpose technical scheme is that：Buried pipe during a kind of excavation pipe trench
The means of defence in road, including following construction procedure：
Pipe trench center line is measured according to drawing before S1, pipe canal digging, it is big according to construction pipe trench structure size in center line both sides
It is small to make pipe trench sideline by defined ditch groove width, and pass through lime and mark pipe trench sideline；
S2, whether there is existing pipeline below ground, and in the existing pipeline detected along what pipe trench image edge detection needs excavated
Place is identified, and is marked at existing 2 meters of pipeline both sides with lime and excavated sideline；
S3, pipe trench is excavated along pipe trench sideline by excavator, is excavated excavating to stopping when excavating at sideline；
S4, before excavating the region excavated between sideline and existing pipeline, it is laid with knitting blanket in the pipe trench that is dug out in excavator, and
Rope is bundled with around knitting blanket, later by the region between hand excavation excavation sideline and existing pipeline, in excavated by manual work
The mound excavated is put on knitting blanket during pick；
S5, the soil being deposited in step S4 on knitting blanket is hung out from the pipe trench excavated out by crane, when operation first will rope
Rope is fixed on crane, is then lifted entire knitting blanket by crane, is removed part when knitting blanket is hung to other regions and is restricted
Rope so that knitting blanket side is sagging, and the soil on knitting blanket will be fallen from sagging；
S6, when excavating out the existing pipeline in part, supporting rack is supported by between the existing pipeline dug out and ground；
S7, step S4, S5 and S6 are repeated, until the soil around existing pipeline is dug out, and gradually exist in mining process completely
Supporting rack is supported between the existing pipeline excavated and ground；
S8, artificial clear bottom is carried out to pipe trench according to design drawing and the center line measured, sideline, it is ensured that pipe trench size, center line
Meet design requirement with absolute altitude.
Through the above technical solutions, being identified at existing pipeline in advance before construction, excavated by machinery to mark
When can stop excavating, machinery is effectively avoided to dig existing pipeline when excavating disconnected, when excavating between sideline and existing pipeline
Region when, using manually being excavated, during hand digging, speed is more slowly and force is smaller, therefore is not easy existing pipeline
Disconnected, the existing pipeline of effective protection is dug, while in hand digging, the soil excavated will be placed directly on knitting blanket, therefore can
Directly to be hung out knitting blanket from pipe trench with the soil excavated with crane, avoid passing through excavator these soil are dug out into mistiming and touch
Cause what existing pipeline was damaged to happen to existing pipeline, and when excavating can when excavating existing pipeline and ground it
Between support supporting rack so that existing pipeline by it is aerial when be not susceptible to be broken, can be effectively ensured and excavated by supporting rack
The safety of existing pipeline in journey.
Preferably, it is detected in step S2 using hidden pipe survey meter.
Through the above technical solutions, hidden pipe survey meter uses ultra-wideband radar technology, based on frequency electromagnetic waves principle of reflection
Underground metalliferous in 0 ~ 8 meter of underground and nonmetal pipe line are detected, have resolution capability is strong, high sensitivity, investigation depth are deep,
It is easy to operate, it may be convenient to existing pipeline at detection.
Preferably, the knitting blanket in step S4 includes the waterproof layer being combined with each other and nylon braiding layer.
Through the above technical solutions, since, in rainy day easy ponding, when knitting blanket is placed in pipe trench, rainwater will in pipe trench
It falls on knitting blanket, it, can due to waterproof layer when knitting blanket and the soil being placed on knitting blanket are hung out from pipe trench
Simultaneously to take the rainwater on knitting blanket out of, effectively avoid accumulating more water in pipe trench so that pipe trench is not easy the leaching in rainwater
It is collapsed under bubble.
Preferably, the nylon braiding layer is two layers, and the waterproof layer is located between two layers of nylon braiding layer.
Through the above technical solutions, in order to waterproof layer be avoided to be damaged to a certain extent in use, by nylon braiding layer
Be set as two layers, and between waterproof layer is arranged on two layers of nylon braiding layer, waterproof layer in use will not directly with extraneous mud
Soil contact, therefore service life is long, and is hardly damaged in use.
Preferably, the supporting rack in step S6 includes support plate, the support feet for being used to support support plate and is arranged on support
Support plate on disk for being bonded with existing pipeline surface.
Through the above technical solutions, in order to enable existing pipeline is effectively supported, support is provided in support plate
Plate, support plate are bonded with existing pipeline surface, can so that contact area is larger between support plate and existing pipeline, when existing pipe
When line is heavier so that existing pipeline is not susceptible to deformation with support plate contact position.
Preferably, jack is provided in the support plate, the inserted block coordinated with jack is provided in the support plate, it is described
In the removably insertable jack of inserted block.
Through the above technical solutions, in order to replace different support plates according to different pipelines, support plate is detachably set
It puts in support plate, dismantles for convenience, jack is provided in support plate, be provided with inserted block on the supporting plate, when replacement will
Inserted block takes out from jack, replaces simple and convenient.
Preferably, the jack is round hole, and the shape of the inserted block is cylindric.
Through the above technical solutions, the trend of existing pipeline differs, it is therefore desirable to support plate is rotated to different directions, with
So that support plate is bonded with existing pipeline surface, by the way that jack is provided in round hole, inserted block is set as cylindric, may be such that
Support plate facilitates rotation.
Preferably, the support feet is supported on pipe trench bottom at pipe trench both sides away from one end of support plate.
Through the above technical solutions, being put into pipeline in pipe trench for convenience, support feet is deviated to one end branch of support plate
Support will retain enough spaces between support feet and pass through for pipeline at this time at pipe trench both sides.
In conclusion having the beneficial effect that in contrast to the prior art of the invention：
1st, cause when excavating pipe trench existing pipeline be not easy to be dug it is disconnected, while when having excavated pipe trench not it is easier that existing pipe trench
It is broken because of situations such as aerial；
2nd, it can facilitate when excavating and take out the soil in pipe trench.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram of the supporting rack of embodiment；
Fig. 2 is the layer structure diagram of the knitting blanket of embodiment.
Reference numeral：1st, knitting blanket；111st, nylon braiding layer；112nd, waterproof layer；2nd, supporting rack；211st, support plate；212、
Support feet；213rd, support plate；3rd, jack；4th, inserted block.
Specific embodiment
The present invention is described in further detail below in conjunction with attached drawing.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, people in the art
Member can as needed make the present embodiment the modification of no creative contribution after this specification is read, but as long as at this
It is all protected in the right of invention by Patent Law.
The means of defence of underground piping during a kind of excavation pipe trench, including following construction procedure：
Pipe trench center line is measured according to drawing before S1, pipe canal digging, it is big according to construction pipe trench structure size in center line both sides
It is small to make pipe trench sideline by defined ditch groove width, and pass through lime and mark pipe trench sideline；
S2, whether there is existing pipeline below ground, and in the existing pipeline detected along what pipe trench image edge detection needs excavated
Place is identified, and is marked at existing 2 meters of pipeline both sides with lime and excavated sideline；
S3, pipe trench is excavated along pipe trench sideline by excavator, is excavated excavating to stopping when excavating at sideline；
S4, before excavating the region excavated between sideline and existing pipeline, knitting blanket 1 is laid in the pipe trench that is dug out in excavator, and
Rope is bundled with around knitting blanket 1, later by the region between hand excavation excavation sideline and existing pipeline, artificial
The mound excavated is put on knitting blanket 1 during excavation；
S5, the soil being deposited in step S4 on knitting blanket 1 is hung out from the pipe trench excavated out by crane, when operation first will rope
Rope is fixed on crane, then lifts entire knitting blanket 1 by crane, part is removed when knitting blanket 1 is hung to other regions
Rope so that 1 side of knitting blanket is sagging, and the soil on knitting blanket 1 will be fallen from sagging；
S6, when excavating out the existing pipeline in part, supporting rack 2 is supported by between the existing pipeline dug out and ground；
S7, step S4, S5 and S6 are repeated, until the soil around existing pipeline is dug out, and gradually exist in mining process completely
Supporting rack 2 is supported between the existing pipeline excavated and ground；
S8, artificial clear bottom is carried out to pipe trench according to design drawing and the center line measured, sideline, it is ensured that pipe trench size, center line
Meet design requirement with absolute altitude.
It is excavated in the present embodiment using backacter, due to mechanical it is not possible that accurately by pipe trench bottom by regulation elevation
It is smooth, it backbreaks to avoid, 30 centimetres or so soil layers should be retained in piping design slot bottom during mechanical excavation, using artificial clear bottom, and
Timely measurement pipe ditch Bottom Altitude and center line it is noted that periphery soil property changes during excavation, brush slope, forbid to dig counter-slope, pipe trench in time
It excavates and first precipitation is answered when meeting underground water, level of ground water is made to be reduced to pipe trench groove bottom hereinafter, and being no less than 0.5 away from pipe trench bottom surface
Rice, when pipe trench bottom ground soil property locally meets soft foundation, is cooked the dry inserted sheet stone bed course of 600 millimeters thicks under pipeline basic,
Width exceeds basic each 150 millimeters of both sides.
The present embodiment is detected using the LTD-2202 hidden pipes of No.22 Inst., China Electronic Science ＆. Technology Group Corp.'s research
Instrument detects the distribution of existing pipeline, and hidden pipe survey meter uses ultra-wideband radar technology, based on frequency electromagnetic waves principle of reflection pair
Underground metalliferous and nonmetal pipe line are detected in 0 ~ 8 meter of underground, with resolution capability is strong, high sensitivity, investigation depth are deep, behaviour
Make simple, it may be convenient to measure the distribution situation of existing pipeline.
It is identified at existing pipeline in advance before construction, can stop excavating when excavating to mark by machinery, have
It imitates and avoids machinery when excavating that the digging of existing pipeline is disconnected, when excavating the region between excavation sideline and existing pipeline, using artificial
It is excavated, speed more slowly and force is smaller, therefore is not easy to dig existing pipeline disconnected during hand digging, and effective protection is existing
There is pipeline, while in hand digging, the soil excavated will be placed directly on knitting blanket 1, therefore will directly can be compiled with crane
It knits blanket 1 to hang out from pipe trench with the soil excavated, avoids passing through excavator and these soil are dug out into mistiming encounter existing pipeline and cause
What existing pipeline was damaged happens, and supporting rack 2 can be supported between existing pipeline and ground when excavating when excavating,
So that existing pipeline by it is aerial when be not susceptible to be broken.
As shown in Figure 1, 2, wherein, the knitting blanket 1 in step S4 includes the waterproof layer 112 being combined with each other and nylon braiding
Layer 111, and nylon braiding layer 111 is two layers, waterproof layer 112 is located between two layers of nylon braiding layer 111, waterproof in the present embodiment
Layer 112 be plastics layer of cloth, rainwater will be fallen on knitting blanket 1 when knitting blanket 1 is placed in pipe trench on rainy day, when by knitting blanket 1 with
The soil on knitting blanket 1 is placed on when being hung out from pipe trench, it, can be simultaneously by the rain on knitting blanket 1 due to waterproof layer 112
Water is taken out of, effectively avoids accumulating more water in pipe trench so that pipe trench is not easy to collapse under the immersion of rainwater, by nylon braiding layer
111 are set as two layers, in use waterproof layer 112 will not directly can be contacted, therefore service life is long with extraneous soil, and
It is hardly damaged in use.
Wherein, the supporting rack 2 in step S6 includes support plate 211, is used to support the support feet 212 of support plate 211 with setting
The support plate 213 in support plate 211 is put, circular jack 3 is provided in support plate 211, is provided with and inserts in support plate 213
The cylindrical inserted block 4 that hole 3 coordinates, during use in 4 removably insertable jack 3 of inserted block, support plate 213 can be with existing pipeline surface
Fitting, can so that contact area is larger between support plate 213 and existing pipeline, when existing pipeline is heavier so that existing pipe
Line is not susceptible to deformation with 213 contact position of support plate.
Pipeline is put into pipe trench for convenience, support feet 212 is supported on pipe trench bottom away from one end of support plate 211
At pipe trench both sides, enough spaces will be retained between support feet 212 at this time and passed through for pipeline.
The above be only the present invention exemplary embodiment, protection domain and is not intended to limit the present invention, this hair
Bright protection domain is determined by appended claim.
Claims (8)
1. a kind of means of defence of underground piping during excavation pipe trench, it is characterised in that：Including following construction procedure：
Pipe trench center line is measured according to drawing before S1, pipe canal digging, it is big according to construction pipe trench structure size in center line both sides
It is small to make pipe trench sideline by defined ditch groove width, and pass through lime and mark pipe trench sideline；
S2, whether there is existing pipeline below ground, and in the existing pipeline detected along what pipe trench image edge detection needs excavated
Place is identified, and is marked at existing 2 meters of pipeline both sides with lime and excavated sideline；
S3, pipe trench is excavated along pipe trench sideline by excavator, is excavated excavating to stopping when excavating at sideline；
S4, before excavating the region excavated between sideline and existing pipeline, knitting blanket (1) is laid in the pipe trench that is dug out in excavator,
And rope is bundled with around knitting blanket (1), region between sideline and existing pipeline is excavated by hand excavation later,
The mound excavated is put on knitting blanket (1) during hand digging；
S5, the soil being deposited in step S4 on knitting blanket (1) is hung out from the pipe trench excavated out by crane, when operation first will
Rope is fixed on crane, is then lifted entire knitting blanket (1) by crane, is torn open when knitting blanket (1) is hung to other regions
Except section cord so that knitting blanket (1) side is sagging, and the soil on knitting blanket (1) will be fallen from sagging；
S6, when excavating out the existing pipeline in part, supporting rack (2) is supported by between the existing pipeline dug out and ground；
S7, step S4, S5 and S6 are repeated, until the soil around existing pipeline is dug out, and gradually exist in mining process completely
Supporting rack (2) is supported between the existing pipeline excavated and ground；
S8, artificial clear bottom is carried out to pipe trench according to design drawing and the center line measured, sideline, it is ensured that pipe trench size, center line
Meet design requirement with absolute altitude.
2. the means of defence of underground piping during a kind of excavation pipe trench according to claim 1, it is characterised in that：In step S2
It is detected using hidden pipe survey meter.
3. the means of defence of underground piping during a kind of excavation pipe trench according to claim 1, it is characterised in that：In step S4
Knitting blanket (1) include the waterproof layer (112) being combined with each other and nylon braiding layer (111).
4. the means of defence of underground piping during a kind of excavation pipe trench according to claim 3, it is characterised in that：The nylon
Braiding layer (111) is two layers, and the waterproof layer (112) is between two layers of nylon braiding layer (111).
5. the means of defence of underground piping during a kind of excavation pipe trench according to claim 1, it is characterised in that：In step S6
Supporting rack (2) including support plate (211), be used to support support plate (211) support feet (212) and be arranged on support plate
(211) support plate (213) on for being bonded with existing pipeline surface.
6. the means of defence of underground piping during a kind of excavation pipe trench according to claim 5, it is characterised in that：The support
Jack (3) is provided on disk (211), the inserted block (4) with jack (3) cooperation, the inserted block are provided on the support plate (213)
(4) in removably insertable jack (3).
7. the means of defence of underground piping during a kind of excavation pipe trench according to claim 6, it is characterised in that：The jack
(3) it is round hole, the shape of the inserted block (4) is cylindric.
8. the means of defence of underground piping during a kind of excavation pipe trench according to claim 6, it is characterised in that：The support
Foot (212) is supported on pipe trench bottom at pipe trench both sides away from one end of support plate (211).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711486513.8A CN108194764B (en) | 2017-12-30 | 2017-12-30 | Protection method for underground pipeline during pipe trench excavation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711486513.8A CN108194764B (en) | 2017-12-30 | 2017-12-30 | Protection method for underground pipeline during pipe trench excavation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108194764A true CN108194764A (en) | 2018-06-22 |
| CN108194764B CN108194764B (en) | 2019-12-13 |
Family
ID=62587043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711486513.8A Active CN108194764B (en) | 2017-12-30 | 2017-12-30 | Protection method for underground pipeline during pipe trench excavation |
Country Status (1)
| Country | Link |
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| CN (1) | CN108194764B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109559037A (en) * | 2018-11-29 | 2019-04-02 | 陈洪杰 | A kind of excavation calling system |
| CN111509649A (en) * | 2019-01-30 | 2020-08-07 | 大唐东营发电有限公司 | Temporary debugging power supply configuration scheme |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2339826Y (en) * | 1997-09-19 | 1999-09-22 | 刘义安 | Underground pipeline marking device |
| JP2015001260A (en) * | 2013-06-14 | 2015-01-05 | 日鉄住金パイプライン＆エンジニアリング株式会社 | Buried object protective plate |
| KR20150019830A (en) * | 2013-08-16 | 2015-02-25 | (주)와콘 | Apparatus for detecting damage and corrosion of buried pipes and detecting method thereof |
| CN105546278A (en) * | 2015-12-23 | 2016-05-04 | 国家电网公司 | Method for protecting underground pipeline during pipe ditch excavation |
| CN105697932A (en) * | 2016-03-18 | 2016-06-22 | 中冶建工集团有限公司 | Water feed pipe construction structure capable of preventing flexible cast-iron drain pipe from leaking and water feed pipe construction technology |
-
2017
- 2017-12-30 CN CN201711486513.8A patent/CN108194764B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2339826Y (en) * | 1997-09-19 | 1999-09-22 | 刘义安 | Underground pipeline marking device |
| JP2015001260A (en) * | 2013-06-14 | 2015-01-05 | 日鉄住金パイプライン＆エンジニアリング株式会社 | Buried object protective plate |
| KR20150019830A (en) * | 2013-08-16 | 2015-02-25 | (주)와콘 | Apparatus for detecting damage and corrosion of buried pipes and detecting method thereof |
| CN105546278A (en) * | 2015-12-23 | 2016-05-04 | 国家电网公司 | Method for protecting underground pipeline during pipe ditch excavation |
| CN105697932A (en) * | 2016-03-18 | 2016-06-22 | 中冶建工集团有限公司 | Water feed pipe construction structure capable of preventing flexible cast-iron drain pipe from leaking and water feed pipe construction technology |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109559037A (en) * | 2018-11-29 | 2019-04-02 | 陈洪杰 | A kind of excavation calling system |
| CN111509649A (en) * | 2019-01-30 | 2020-08-07 | 大唐东营发电有限公司 | Temporary debugging power supply configuration scheme |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108194764B (en) | 2019-12-13 |
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