CN105484172B - The structures and methods of corrugated steel tube culvert pipe are repaired using expanding ring steel belt - Google Patents
The structures and methods of corrugated steel tube culvert pipe are repaired using expanding ring steel belt Download PDFInfo
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- CN105484172B CN105484172B CN201511030586.7A CN201511030586A CN105484172B CN 105484172 B CN105484172 B CN 105484172B CN 201511030586 A CN201511030586 A CN 201511030586A CN 105484172 B CN105484172 B CN 105484172B
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- culvert pipe
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- angle steel
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
- E01F5/005—Culverts ; Head-structures for culverts, or for drainage-conduit outlets in slopes
Abstract
The invention discloses a kind of structure that corrugated steel tube culvert pipe is repaired using expanding ring steel belt, including ring steel belt, ring steel belt both ends mutually overlap, first angle steel and the second angle steel are installed on ring steel belt, first angle steel is arranged on the inner side end of ring steel belt overlapping part, second angle steel is arranged on side of first angle steel away from termination on the outside of ring steel belt overlapping part, and the first angle steel and the second angle steel are connected by expanding drive device.The reparation structure can effectively realize the bearing capacity and durability for the disconnection of corrugated steel tube culvert pipe and the reparation and reparation of damaged part, improving culvert.The invention also discloses a kind of restorative procedure of corrugated steel tube culvert pipe, it comprises the following steps：Ring steel belt is arranged in corrugated steel tube culvert pipe；Expansion drive device is arranged on ring steel belt；Adjustment expansion drive device is so that ring steel belt is close to the inwall of corrugated steel tube culvert pipe.This method process is simple, easy for construction, is suitable in operation in small space inside culvert.
Description
Technical field
The invention belongs to corrugated steel tube culvert pipe recovery technique field, is specifically related to repair ripple using expanding ring steel belt
The structures and methods of line steel pipe culvert pipe.
Background technology
Corrugated steel tube culvert pipe is as a kind of new culvert form, in batches using existing more than ten in highway engineering in China construction
Year history.Due to having the advantages that radial force condition is good, longitudinal direction adaptation ground deformability is strong, easy for construction, corrugated steel tube
Culvert pipe has particularly obtained popular welcome in highway construction field in the Unfavorable Conditions highway construction such as frozen soil and weak soil.
With the increase of culvert service life, because load action, ground inhomogeneous deformation, steel pipe (steel plate) component are present
The reason such as local defect and fill compaction inappropriate technology, occur at the tube coupling of indivedual corrugated steel tube culvert pipe flange sealing packing ring and
The diseases such as bolt connection failure, tube coupling disengage and tube coupling inside weld ftractures；Sheet corrugated steel assembles the bolt connection of culvert
There are the diseases such as steel plate tear in place.If these defect phenomenons further develop, it will cause culvert seepage, wash away and disconnect
Problem, influences the radial rigidity, globality and strength performance of culvert, or even has influence on the bearing capacity of roadbed and the use on road surface
Performance.
Although above-mentioned disease is not universal phenomenon in corrugated steel tube culvert pipe, because culvert inner space is narrow and small (big
Most a diameter of below 1.5m of culvert), it is larger to repair difficulty.If using concrete lining restorative procedure, need original
Welded reinforcement on corrugated steel tube culvert pipe, reinforcing bar (net) is laid in concrete, or it is more numerous using fiber concrete, process
It is trivial.Using concrete lining restorative procedure, it can also change mechanical characteristic of original corrugated steel tube as flexible culvert, in concrete
Larger tension is formed in rigid liner；Also, culvert flood carrying capacity can be substantially reduced.Carrying out reparation using steel plate needs to solve
The certainly connectivity problem of steel plate and existing culvert.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency of the prior art, there is provided a kind of reparation knot of corrugated steel tube culvert pipe
Structure.The reparation structure effectively realizes the reparation to corrugated steel tube culvert pipe position to be repaired, serves good repair.
To achieve the above object, a kind of technical scheme of the reparation structure use of corrugated steel tube culvert pipe of the present invention is：It is a kind of
The reparation structure of corrugated steel tube culvert pipe, it is characterised in that：Including the inner bearing type ring steel belt being arranged on inside corrugated steel tube culvert pipe,
The both ends of the ring steel belt are mutually overlapped, and the first angle steel and the second angle steel being oppositely arranged are provided with the ring steel belt,
First angle steel is arranged on the inner side end of the ring steel belt overlapping part, and second angle steel is arranged on described first
Side of the angle steel away from termination on the outside of ring steel belt overlapping part, first angle steel and the second angle steel pass through for expanding therebetween
Away from so make ring steel belt be close to the expansion drive device of corrugated steel tube culvert pipe inwall to be connected, the curvature of the ring steel belt
It is consistent with the curvature of corrugated steel tube culvert pipe.
The above-mentioned structure that corrugated steel tube culvert pipe is repaired using expanding ring steel belt, it is characterised in that：The expansion is driven
Dynamic device includes bolt, the unthreaded hole on unthreaded hole and the second angle steel described in the screw bolt passes on the first angle steel, the spiral shell
The locking nut being engaged with the first angle steel is cased with bolt, first angle steel is stuck in the head of the locking nut and bolt
Between, it is cased with the bolt for extruding second angle steel so that the driving spiral shell that the first angle steel and the second angle steel are located remotely from each other
It is female.
The above-mentioned structure that corrugated steel tube culvert pipe is repaired using expanding ring steel belt, it is characterised in that：The expansion is driven
Dynamic device is arranged on the top of corrugated steel tube culvert pipe.
The above-mentioned structure that corrugated steel tube culvert pipe is repaired using expanding ring steel belt, it is characterised in that：The annular steel
Band is made of corrugated steel, and the crest of ripple is embedded in the trough of ripple on corrugated steel tube culvert pipe on the ring steel belt, described
The crest of ripple is embedded in the trough of ripple on the ring steel belt on corrugated steel tube culvert pipe.
The above-mentioned structure that corrugated steel tube culvert pipe is repaired using expanding ring steel belt, it is characterised in that：The annular steel
Anti-seepage sealing structure is provided between band and corrugated steel tube culvert pipe.
The above-mentioned structure that corrugated steel tube culvert pipe is repaired using expanding ring steel belt, it is characterised in that：The antiseepage is close
Sealing includes two sealing collars, and two sealing collars, which correspond, is arranged on corrugated steel tube culvert pipe inner wall surface plan reparation position
Both sides.
The above-mentioned structure that corrugated steel tube culvert pipe is repaired using expanding ring steel belt, it is characterised in that：The antiseepage is close
Sealing includes being pasted onto the waterstop that corrugated steel tube culvert pipe inner wall surface intends repairing position.
The above-mentioned structure that corrugated steel tube culvert pipe is repaired using expanding ring steel belt, it is characterised in that：Described first jiao
Steel and the second angle steel are welded on the ring steel belt.
It is easy for construction present invention also offers a kind of process is simple, it is suitable for one of the operation in narrow space inside culvert
The method that kind repairs corrugated steel tube culvert pipe using expanding ring steel belt.It is of the invention a kind of using expanding ring steel belt reparation ripple
The technical scheme that the method for line steel pipe culvert pipe uses is：A kind of restorative procedure of corrugated steel tube culvert pipe, it is characterised in that including with
Lower step：
Step 1: ring steel belt is arranged in corrugated steel tube culvert pipe：Ring steel belt winding is arranged on corrugated steel pipe culvert
Position to be repaired in pipe, and the both ends of ring steel belt are mutually overlapped；
Step 2: expansion drive device is arranged on ring steel belt, it comprises the following steps：
Step 201, the first angle steel and the second angle steel are welded on to ring steel belt inner side, and first angle steel is set
Put in the inner side end of the ring steel belt overlapping part, the second angle steel is arranged on first angle steel away from ring steel belt
The side of termination on the outside of overlapping part；
Step 202, bolt is chosen, first by bolt through the unthreaded hole on the first angle steel, then by locking nut and driving spiral shell
Mother is sequentially sleeved on the bolt, then makes bolt through the unthreaded hole on the second angle steel；
Step 3: adjustment expansion drive device is so that ring steel belt is close to the inwall of corrugated steel tube culvert pipe, it include with
Lower step：
Step 301, locking nut is screwed, it is extruded the first angle steel, so that the first angle steel is stuck in the locking nut
Between the head of bolt；
Step 302, drive nut is screwed to promote the second angle steel, so that the first angle steel and the second angle steel are located remotely from each other,
The first angle steel being located remotely from each other and the second angle steel promote ring steel belt, so that the lap of splice of ring steel belt reduces, and then make ring
Shape steel band is close to the inwall of the corrugated steel tube culvert pipe.
Above-mentioned restorative procedure, it is characterised in that：Before step 2, set at the position to be repaired of corrugated steel tube culvert pipe inwall
Put anti-seepage sealing structure.
The present invention has advantages below compared with prior art：
1st, the present invention repairs structure by adjusting expansion drive device to promote ring steel belt, and then makes taking for ring steel belt
Spreading degree reduces, circumference circle increase, diameter increase, and pressure is applied to the inwall of corrugated steel tube culvert pipe, make ring steel belt and
Corrugated steel tube culvert pipe is brought into close contact, and effectively realizes the reparation to corrugated steel tube culvert pipe position to be repaired, serves good repair
Multiple effect；Meanwhile ring steel belt adds the radial rigidity of existing corrugated steel pipe culvert, and have to it and play certain support work
With.
2nd, the expansion drive device of present invention reparation structure is arranged on the top of corrugated steel tube culvert pipe.It can so avoid containing
The mud accumulated in hole causes to damage to expansion drive device.
3rd, the present invention repairs structure has certain radial rigidity and longitudinal direction suitable using ring steel belt made of corrugated steel
Malformation ability is answered, as reparation and repairs component, the new knot being grouped together into paraprotehetic corrugated steel tube culvert pipe
Structure, longitudinally remain in that original corrugated steel tube culvert pipe well adapts to the characteristic of foundation deformation in culvert, and enhanced original
The radial rigidity of corrugated steel tube.
4th, the present invention repairs structure by setting anti-seepage sealing structure, can further increase the anti-of corrugated steel tube culvert pipe
Ooze effect.
5th, the present invention repairs combines closely one in the ripple of structure annular corrugated steel band insertion corrugated steel tube structure with it
Rise, culvert internal diameter only reduce corrugated steel add sealing collar thickness, relative to rigid liner etc. other repair and restorative procedure,
Significant adverse effect will not be brought to culvert flood carrying capacity.
6th, restorative procedure of the present invention make use of ring steel belt and for being exerted a force to ring steel belt so that ring steel belt expansion support
The expansion drive device opened, it is achieved thereby that effective reparation to corrugated steel tube culvert pipe.The process of the restorative procedure is simple, construction
It is convenient, it is suitable for the operation in narrow space inside culvert.And it is not required to excavate roadbed in repair process, to normal traffic without unfavorable
Influence.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Fig. 1 is the structural representation that the present invention repairs structure.
Fig. 2 is the enlarged drawing at A in Fig. 1.
Fig. 3 is the method flow diagram of restorative procedure of the present invention.
Description of reference numerals:
1-ring steel belt；1-1-inner side termination；1-2-outside termination；
2-anti-seepage sealing structure；3-the first angle steel；4-the second angle steel；
5-expansion drive device；5-1-bolt；5-2-locking nut；
5-3-drive nut；6-corrugated steel tube culvert pipe.
Embodiment
A kind of reparation structure of corrugated steel tube culvert pipe as depicted in figs. 1 and 2, including be arranged in corrugated steel tube culvert pipe 6
The inner bearing type ring steel belt 1 in portion, the both ends of the ring steel belt 1 mutually overlap, and are provided with and are oppositely arranged on the ring steel belt 1
And the first angle steel 3 and the second angle steel 4 being parallel to each other, first angle steel 3 are arranged on the interior of the overlapping part of ring steel belt 1
At the head 1-1 of side, second angle steel 4 is arranged on first angle steel 3 away from termination 1-2 on the outside of the overlapping part of ring steel belt 1
Side, the angle steel 4 of the first angle steel 3 and second for expanding its spacing by making ring steel belt 1 be close to corrugated steel
The expansion drive device 5 of the inwall of pipe culvert pipe 6 is connected, the curvature of the ring steel belt 1 and the curvature phase one of corrugated steel tube culvert pipe 6
Cause.
In the present embodiment, the reparation structure when in use, promotes ring steel belt 1 by adjusting expansion drive device 5, entered
And reduce the lap of splice of ring steel belt 1, circumference circle increase, diameter increase, and the inwall of corrugated steel tube culvert pipe 6 is applied
Pressure, ring steel belt 1 and corrugated steel tube culvert pipe 6 are brought into close contact, effectively realized to 6 position to be repaired of corrugated steel tube culvert pipe
Repair, serve good repair；Meanwhile ring steel belt 1 adds the radial rigidity of existing corrugated steel tube culvert pipe 6, and
Have to it and play certain supporting role.
As shown in Fig. 2 the expansion drive device 5 sequentially passes through described first jiao including bolt 5-1, the bolt 5-1
The unthreaded hole on unthreaded hole and the second angle steel 4 on steel 3, the locking nut being engaged with the first angle steel 3 is cased with the bolt 5-1
5-2, first angle steel 3 are stuck between the head of the locking nut 5-2 and bolt 5-1, are cased with being used on the bolt 5-1
Second angle steel 4 is extruded so that the drive nut 5-3 that the first angle steel 3 and the second angle steel 4 are located remotely from each other.
In the present embodiment, the expansion drive device 5 when in use, passes through rotation driving nut 5-3, the drive nut
5-3 extrudes second angle steel 4 and then is located remotely from each other the first angle steel 3 and the second angle steel 4, the He of the first angle steel 3 being located remotely from each other
Second angle steel 4 exerts a force to ring steel belt 1, so that the lap of splice of ring steel belt 1 reduces, circumference circle increases, diameter increase.
In the present embodiment, the expansion drive device 5 is arranged on the top of corrugated steel tube culvert pipe 6.It can so avoid containing
The mud accumulated in hole causes to damage to expansion drive device 5.
In the present embodiment, the ring steel belt 1 is made of corrugated steel, and the crest of ripple is embedding on the ring steel belt 1
Enter the trough of ripple on corrugated steel tube culvert pipe 6, the crest of ripple is embedded on the ring steel belt 1 on the corrugated steel tube culvert pipe 6
The trough of ripple.
Due to there is certain radial rigidity and longitudinal commensurate structure deformation energy using ring steel belt 1 made of corrugated steel
Power, as repairing and repairing component, the new construction being grouped together into paraprotehetic corrugated steel tube culvert pipe 6, indulged in culvert
To having remained in that original corrugated steel tube culvert pipe 6 well adapts to the characteristic of foundation deformation, and enhance original corrugated steel tube
Radial rigidity.
In the present embodiment, anti-seepage sealing structure 2 is provided between the ring steel belt 1 and corrugated steel tube culvert pipe 6.By setting
Anti-seepage sealing structure 2 is put, can further improve the impervious effect of corrugated steel tube culvert pipe 6.The anti-seepage sealing structure 2 is preferable
Way is that have two kinds, and one kind is that the anti-seepage sealing structure 2 includes two sealing collars, and two sealing collars, which correspond, to be set
Intend repairing the both sides at position in the inner wall surface of corrugated steel tube culvert pipe 6.Another kind is that the anti-seepage sealing structure 2 includes being pasted onto ripple
The inner wall surface of line steel pipe culvert pipe 6 intends repairing the waterstop at position.
In the present embodiment, the angle steel 4 of the first angle steel 3 and second is welded on the ring steel belt 1.
A kind of method that corrugated steel tube culvert pipe is repaired using expanding ring steel belt as shown in Figure 3, is comprised the following steps：
Step 1: ring steel belt 1 is arranged in corrugated steel tube culvert pipe 6：The winding of ring steel belt 1 is arranged on corrugated steel tube
Position to be repaired in culvert pipe 6, and the both ends of ring steel belt 1 are mutually overlapped；
Step 2: expansion drive device 5 is arranged on ring steel belt 1, it comprises the following steps：
Step 201, the first angle steel 3 and the second angle steel 4 are welded on to the inner side of ring steel belt 1, and by described first jiao
Steel 3 is arranged at the inner side termination 1-1 of the overlapping part of ring steel belt 1, and the second angle steel 4 is arranged on into first angle steel 3
Side away from termination 1-2 on the outside of the overlapping part of ring steel belt 1；
Step 202, bolt 5-1 is chosen, first by bolt 5-1 through the unthreaded hole on the first angle steel 3, then by locking nut 5-
2 and drive nut 5-3 is sequentially sleeved on the bolt 5-1, then makes bolt 5-1 through the unthreaded hole on the second angle steel 4；
Step 3: adjustment expansion drive device 5, so that ring steel belt 1 is close to the inwall of corrugated steel tube culvert pipe 6, it includes
Following steps：
Step 301, locking nut 5-2 is screwed, it is extruded the first angle steel 3, so that the first angle steel 3 is stuck in the locking
Between nut 5-2 and bolt 5-1 head；
Step 302, drive nut 5-3 is screwed to promote the second angle steel 4, so that the first angle steel 3 and the second angle steel 4 are mutual
Remote, the first angle steel 3 being located remotely from each other and the second angle steel 4 promote ring steel belt 1, so that the lap of splice of ring steel belt 1 reduces,
And then ring steel belt 1 is set to be close to the inwall of the corrugated steel tube culvert pipe 6.
In the present embodiment, the restorative procedure make use of ring steel belt 1 and for exerting a force ring steel belt 1 so that ring steel belt
The expansion drive device 5 that 1 expansion struts, so as to efficiently accomplish effective reparation to corrugated steel tube culvert pipe 6.The restorative procedure
Process is simple, easy for construction, is suitable for the operation in narrow space inside culvert.And it is not required to excavate roadbed in repair process, it is right
Normal traffic has no adverse effect.
In the present embodiment, before step 2, anti-seepage sealing structure is set at the position to be repaired of the inwall of corrugated steel tube culvert pipe 6
2。
It is described above, only it is presently preferred embodiments of the present invention, not the present invention is imposed any restrictions, it is every according to the present invention
Any simple modification, change and the equivalent structure transformation that technical spirit is made to above example, still fall within skill of the present invention
In the protection domain of art scheme.
Claims (8)
1. the structure of corrugated steel tube culvert pipe is repaired using expanding ring steel belt, it is characterised in that：Including being arranged on corrugated steel tube
The internal inner bearing type ring steel belt (1) of culvert pipe (6), the both ends of the ring steel belt (1) mutually overlap, the ring steel belt (1)
On the first angle steel (3) and the second angle steel (4) for being oppositely arranged and being parallel to each other are installed, first angle steel (3) is arranged on institute
Inner side termination (1-1) place of ring steel belt (1) overlapping part is stated, it is remote that second angle steel (4) is arranged on first angle steel (3)
From the side of termination (1-2) on the outside of ring steel belt (1) overlapping part, first angle steel (3) and the second angle steel (4) by for
Expand its spacing and then ring steel belt (1) is close to the expansion drive device (5) of corrugated steel tube culvert pipe (6) inwall and be connected,
The curvature of the ring steel belt (1) and the curvature of corrugated steel tube culvert pipe (6) are consistent；
The expansion drive device (5) includes bolt (5-1), and the bolt (5-1) is sequentially passed through on first angle steel (3)
Unthreaded hole on unthreaded hole and the second angle steel (4), the locking nut being engaged with the first angle steel (3) is cased with the bolt (5-1)
(5-2), first angle steel (3) are stuck between the head of the locking nut (5-2) and bolt (5-1), the bolt (5-1)
On be cased be used for extrude second angle steel (4) so that the drive nut that the first angle steel (3) and the second angle steel (4) are located remotely from each other
(5-3)；
The expansion drive device (5) is arranged on the top of corrugated steel tube culvert pipe (6).
2. the structure according to claim 1 that corrugated steel tube culvert pipe is repaired using expanding ring steel belt, it is characterised in that：
The ring steel belt (1) is made of corrugated steel, the crest insertion corrugated steel tube culvert pipe of ripple on the ring steel belt (1)
(6) trough of ripple on, the crest of ripple is embedded in the ripple of ripple on the ring steel belt (1) on the corrugated steel tube culvert pipe (6)
Paddy.
3. the structure according to claim 1 that corrugated steel tube culvert pipe is repaired using expanding ring steel belt, it is characterised in that：
Anti-seepage sealing structure (2) is provided between the ring steel belt (1) and corrugated steel tube culvert pipe (6).
4. the structure according to claim 3 that corrugated steel tube culvert pipe is repaired using expanding ring steel belt, it is characterised in that：
The anti-seepage sealing structure (2) includes two sealing collars, and two sealing collars, which correspond, is arranged on corrugated steel tube culvert pipe (6)
Inner wall surface intends repairing the both sides at position.
5. the structure according to claim 3 that corrugated steel tube culvert pipe is repaired using expanding ring steel belt, it is characterised in that：
The anti-seepage sealing structure (2) includes being pasted onto the waterstop that corrugated steel tube culvert pipe (6) inner wall surface intends repairing position.
6. the structure according to claim 1 that corrugated steel tube culvert pipe is repaired using expanding ring steel belt, it is characterised in that：
First angle steel (3) and the second angle steel (4) are welded on the ring steel belt (1).
A kind of 7. method that corrugated steel tube culvert pipe is repaired using expanding ring steel belt, it is characterised in that comprise the following steps：
Step 1: ring steel belt (1) is arranged in corrugated steel tube culvert pipe (6)：Ring steel belt (1) winding is arranged on corrugated steel
Position to be repaired in pipe culvert pipe (6), and the both ends of ring steel belt (1) are mutually overlapped；
Step 2: expansion drive device (5) is arranged on ring steel belt (1), it comprises the following steps：
Step 201, the first angle steel (3) and the second angle steel (4) be welded on the inside of ring steel belt (1), and by described first
Angle steel (3) is arranged on inner side termination (1-1) place of the ring steel belt (1) overlapping part, the second angle steel (4) is arranged on described
Side of first angle steel (3) away from termination (1-2) on the outside of ring steel belt (1) overlapping part；
Step 202, bolt (5-1) is chosen, first by bolt (5-1) through the unthreaded hole on the first angle steel (3), then by locking nut
Rotation set on the bolt (5-1), then makes bolt (5-1) through on the second angle steel (4) successively for (5-2) and drive nut (5-3)
Unthreaded hole；
Step 3: adjustment expansion drive device (5), so that ring steel belt (1) is close to the inwall of corrugated steel tube culvert pipe (6), it is wrapped
Include following steps：
Step 301, locking nut (5-2) is screwed, it is extruded the first angle steel (3), so that the first angle steel (3) is stuck in the lock
Between the head of tight nut (5-2) and bolt (5-1)；
Step 302, drive nut (5-3) is screwed to promote the second angle steel (4), so that the first angle steel (3) and the second angle steel (4)
It is located remotely from each other, the first angle steel (3) and the second angle steel (4) being located remotely from each other promote ring steel belt (1), so that ring steel belt (1)
The lap of splice reduces, and then ring steel belt (1) is close to the inwall of the corrugated steel tube culvert pipe (6).
8. according to the method for claim 7, it is characterised in that：Before step 2, in treating for corrugated steel tube culvert pipe (6) inwall
Repair position and anti-seepage sealing structure (2) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511030586.7A CN105484172B (en) | 2015-12-31 | 2015-12-31 | The structures and methods of corrugated steel tube culvert pipe are repaired using expanding ring steel belt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511030586.7A CN105484172B (en) | 2015-12-31 | 2015-12-31 | The structures and methods of corrugated steel tube culvert pipe are repaired using expanding ring steel belt |
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| CN105484172A CN105484172A (en) | 2016-04-13 |
| CN105484172B true CN105484172B (en) | 2017-12-15 |
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| CN106436596B (en) * | 2016-11-24 | 2018-06-19 | 河北工业大学 | A kind of construction method for highway fiberglass sand inclusion pipe culverts |
| CN109723473A (en) * | 2019-03-20 | 2019-05-07 | 河北天振工程技术有限公司 | A kind of corrugated steel splicing board connecting structure of existing tunnel inner wall reinforcing |
| CN115162220B (en) * | 2022-06-24 | 2023-11-24 | 广东粤路勘察设计有限公司 | Method for improving drainage capacity without interrupting transportation of old cover plate culvert to round pipe culvert |
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| US20050214070A1 (en) * | 2004-03-26 | 2005-09-29 | Harr Technologies, Llc | Hydraulic wick apparatus and method |
| CN202972303U (en) * | 2012-12-11 | 2013-06-05 | 重庆顾地塑胶电器有限公司 | Hoop of steel belt helical bellows |
| CN204004910U (en) * | 2014-05-30 | 2014-12-10 | 中交第二公路勘察设计研究院有限公司 | A kind of corrugated nozzle cuff structure connecting for corrugated steel culvert |
| CN205474890U (en) * | 2015-12-31 | 2016-08-17 | 长安大学 | Restoration reinforced structure of corrugated steel pipe culvert culvert pipe |
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