CN206308631U - Precast concrete culvert pipe and precast comprehensive pipe gallery - Google Patents
Precast concrete culvert pipe and precast comprehensive pipe gallery Download PDFInfo
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- CN206308631U CN206308631U CN201621415504.0U CN201621415504U CN206308631U CN 206308631 U CN206308631 U CN 206308631U CN 201621415504 U CN201621415504 U CN 201621415504U CN 206308631 U CN206308631 U CN 206308631U
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- precast concrete
- culvert pipe
- concrete culvert
- water
- pipe
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 114
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 69
- 238000007789 sealing Methods 0.000 claims description 41
- 239000000203 mixture Substances 0.000 claims description 2
- 239000002390 adhesive tape Substances 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 239000000565 sealant Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 239000004567 concrete Substances 0.000 description 6
- 239000002689 soil Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000754 Wrought iron Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004643 material aging Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model provides a precast concrete culvert pipe and precast comprehensive pipe gallery all contains waterproof drainage structures on the ring terminal surface at the both ends of this precast concrete culvert pipe, this waterproof drainage structures includes water drainage tank (1) and joint strip mounting groove (2) that set up along the circumference of this precast concrete culvert pipe, joint strip mounting groove (2) are located between the surface of water drainage tank (1) and this precast concrete culvert pipe, water drainage tank (1) are less than water drainage tank (1) to the distance of the internal surface of this precast concrete culvert pipe to the distance of the surface of this precast concrete culvert pipe. This precast concrete culvert pipe and prefabricated utility tunnel have solved the waterproof problem at concatenation position, realize the combination of "preventing, arranging, stifled", and after the material life-span expired, waterproof interface can also be restoreed, ensures water-proof effects.
Description
Technical field
The utility model is related to a kind of precast concrete culvert pipe, further relates to a kind of contain the prefabricated of the precast concrete culvert pipe
Pipe gallery.
Background technology
The quickening of rhythm, and the active demand that local economy is upgraded to industrialization are built with Urban Underground pipe gallery
The need for being built with environmental protection, assembly concrete pipe gallery is thus lifted to unprecedented height, is built single by each
Position, design institute, the extensive concern of unit in charge of construction, assembly concrete pipe gallery will be as Urban Underground with its Inherent advantage
The tendency product that pipe gallery is built.
Assembled underground pipe gallery uses prefabrication tube coupling, and the quality of component can be well controlled, but existing
Field is assembled using machinery, and seaming position is waterproof weak spot, and underground pipe gallery is 100 years engineerings, therefore, the research in industry
Mechanism is all using assembled piping lane interface waterproof as important research topic.In order to solve the problem, the scientific worker of China
Hereinafter make great efforts.
Such as Chinese patent CN 105525628A, on April 27 2016 publication date, disclose《A kind of piping lane sealing joint
Device》.Its structure includes being arranged under earth's surface and its middle part is set to the waterproof sealing band of V-arrangement, the V-arrangement of the waterproof sealing band
Two ends are respectively arranged with upper grooves and lower boss, are provided with described groove and withhold module and be fixed in groove
Elastic layering, pre-buried shaped steel is respectively arranged with the cement components at piping lane interface plane position of the waterproof sealing with both sides,
It is provided with matched spinner in the groove of the pre-buried shaped steel, the top of the spinner is bumped into described withholds mould
Block, withholds described in two and the seam cover plate concordant with earth's surface is provided with the top of module, and described seam cover plate passes through its two ends
Module is withheld described in respectively penetrating and two bolts of spinner are fixed.
Such as Chinese patent CN205502066U, 2016 publication dates August 24 days discloses one kind《Piping lane prefabricated component and
Assembled rectangle pipe gallery》, refer to that " sealing structure is arranged on grafting and coordinates along spool piece body circumference ring seal in the patent
On face ".
Such as Chinese patent CN204098065U, on January 14 2015 publication date, one kind is disclosed《One kind can open in vivo
The precast assembly pipe gallery of drawing》, referred in the patent and " be provided with waterstop between contiguous prefabricated sections component, it is ensured that comprehensive
Close the waterproof sealing performance of piping lane ".
《Technical code for water proof in underground engineering》(GB50108-2008) " design and construction of 1.0.3 underground project waterproofs should
Follow " anti-, row, cut, it is stifled be combined, temper toughness with gentleness, suit measures to local conditions, the comprehensive regulation " principle ", the shortcoming of existing technology is
Only focus on " anti-", the mode of " anti-, row, cut, bridging is closed " without focusing on, because the design life of Pipe rack is 100 years,
Due to the many-side reason such as quality of materials, construction quality and material aging, seepage is caused, it is hard to guard against, then just formed
The way of current multi layer waterproof measure, both increased cost, and leakage problems can not be thoroughly solved again.
Utility model content
For the easy seepage in the junction for solving the problems, such as existing pipe gallery, the utility model provides a kind of prefabricated mixed
The waterproof that solidifying soil culvert pipe and prefabricated pipe gallery, the precast concrete culvert pipe and prefabricated pipe gallery solve splicing position is asked
Topic, realizes the combination of " prevent, arrange, blocking up ", and after material lifetime expires, waterproof port can also be repaired, it is ensured that waterproof effect.
The utility model solves the technical scheme that its technical problem used：A kind of precast concrete culvert pipe, this is prefabricated
Contain water-proof drainage structure on the annular end face at the two ends of concrete culvert pipe with great, the water-proof drainage structure is included along the concrete
The circumferentially disposed rhone and sealing joint strip mounting groove of native culvert pipe, sealing joint strip mounting groove are located at rhone and the concrete
Between the outer surface of native culvert pipe, the distance of rhone to the outer surface of the precast concrete culvert pipe is prefabricated mixed to this less than rhone
The distance of the inner surface of solidifying soil culvert pipe.
The section of the precast concrete culvert pipe is three-back-shaped, is provided with solid for connecting in the two ends of the precast concrete culvert pipe
Fixed tensioning connecting hole.
The center line of the precast concrete culvert pipe is horizontally disposed, the bottom of the inner surface of the precast concrete culvert pipe
It is provided with piping lane gutter, piping lane gutter is set along the centerline direction of the precast concrete culvert pipe, rhone and piping lane draining
Ditch is connected.
The wall thickness of the precast concrete culvert pipe is 200mm~300mm, inner surface of the rhone to the precast concrete culvert pipe
Distance be 110mm~160mm.
The wall thickness of the precast concrete culvert pipe is 250mm, distance of the rhone to the inner surface of the precast concrete culvert pipe
It is 125mm, the width of rhone is 30mm, and the depth of rhone is 30mm.
The section of sealing joint strip mounting groove is made up of the connection of first side, base and second side, and base is one and is somebody's turn to do
The both sides mirror image, the first side each other of the parallel line segment of the end face of precast concrete culvert pipe, first side and second side on base
Side and second side are a camber line or straightway.
The distance between sealing joint strip mounting groove and rhone are less than sealing joint strip mounting groove and the precast concrete culvert pipe
The distance between outer surface, the depth of sealing joint strip mounting groove is 10mm, the width of sealing joint strip mounting groove for 35mm~
45mm。
A kind of prefabricated pipe gallery, the above-mentioned precast concrete culvert pipe containing multiple series connection, adjacent two are prefabricated mixed
The position of the water-proof drainage structure of solidifying soil culvert pipe is corresponding, and the sealing joint strip of two adjacent precast concrete culvert pipe is installed
The first water expandable waterstop is provided between groove, being additionally provided with the second water-swellable between two adjacent precast concrete culvert pipe stops
Water bar, the first water expandable waterstop and the second water expandable waterstop along the circumferentially disposed of the precast concrete culvert pipe,
Distance inner surface less than second water expandable waterstop to precast concrete culvert pipe of two water expandable waterstops to rhone
Distance.
The distance between two adjacent precast concrete culvert pipe are 20mm~30mm, and two adjacent precast concretes are contained
The 3rd water expandable waterstop is additionally provided between pipe, the 3rd water expandable waterstop sets along the circumference of the precast concrete culvert pipe
Put, the 3rd water expandable waterstop is located between the second water expandable waterstop and the inner surface of precast concrete culvert pipe.
The beneficial effects of the utility model are：
1st, water expandable waterstop can well play water-stagnating effect due to the compaction of left and right sides tube coupling；
2nd, when due to product quality, construction or other reasonses cause seepage when, can by rhone will infilter in time water
Piping lane base plate gutter is drained into, while water expandable waterstop is due to expansion compaction, the water for coming can will be infiltered and be terminated in draining
In groove；
If the 3, the water expandable waterstop also leak source caused by other reasonses, when causing water directly to penetrate into piping lane inside, this is
It is new that water expandable waterstop is set, it is compacted after water-swellable, sealing effect is played, realize the repair function of operation phase.So as to real
The combination now " preventing, arrange, blocking up ", moreover it is possible to carry out the reparation of leak.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing being further understood to of the present utility model, this practicality
New schematic description and description is used to explain the utility model, does not constitute to improper restriction of the present utility model.
Fig. 1 is that structure when water expandable waterstop is not installed in the end of precast concrete culvert pipe described in the utility model is shown
It is intended to.
Fig. 2 is that the end of a precast concrete culvert pipe is mounted with the structural representation after water expandable waterstop.
Fig. 3 is that the structural representation after water expandable waterstop is repeatedly installed in two adjacent ends of precast concrete culvert pipe
Figure.
1st, rhone；2nd, sealing joint strip mounting groove；3rd, tensioning connecting hole；4th, piping lane gutter；5th, the first water-swellable stops
Water bar；6th, the second water expandable waterstop；7th, the 3rd water expandable waterstop；8th, the 4th water expandable waterstop；9th, the 5th meet
Water expansion sealing strip；
10th, precast concrete culvert pipe；
21st, first side；22nd, base；23rd, second side.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of precast concrete culvert pipe, contains water-proof drainage knot on the annular end face at the two ends of the precast concrete culvert pipe
Structure, the water-proof drainage structure includes the circumferentially disposed rhone 1 and sealing joint strip mounting groove 2 along the precast concrete culvert pipe,
I.e., along the circumferentially disposed of the precast concrete culvert pipe, sealing joint strip mounting groove 2 is located at for rhone 1 and sealing joint strip mounting groove 2
Between the outer surface of rhone 1 and the precast concrete culvert pipe, the distance of the outer surface of rhone 1 to the precast concrete culvert pipe
Less than rhone 1 to the precast concrete culvert pipe inner surface distance, as shown in Figure 1.
In the present embodiment, the section of the precast concrete culvert pipe is three-back-shaped, in the two ends of the precast concrete culvert pipe
It is provided with the tensioning connecting hole 3 for being connected.The center line of the precast concrete culvert pipe is horizontally disposed, and this is prefabricated mixed
The bottom of the inner surface of solidifying soil culvert pipe is provided with piping lane gutter 4, piping lane gutter 4 along the precast concrete culvert pipe center line side
Set to (perpendicular to the direction of Fig. 1 papers), rhone 1 is connected with piping lane gutter 4.
In the present embodiment, the wall thickness of the precast concrete culvert pipe is 200mm~300mm, and rhone 1 arrives the concrete
The distance of the inner surface of native culvert pipe is 110mm~160mm.Specifically, the wall thickness of the precast concrete culvert pipe is 250mm, draining
Groove 1 is 125mm to the distance of the inner surface of the precast concrete culvert pipe, and rhone 1 to the precast concrete culvert pipe is surface
Distance be 95mm, the width of rhone 1 is 30mm, and the depth of rhone 1 is 30mm.Wherein, the width of rhone 1 is along figure
The size of above-below direction in 3, the depth of rhone 1 is the size of the left and right directions along Fig. 3.
In the present embodiment, the section of sealing joint strip mounting groove 2 is connected by first side 21, base 22 and second side 23
Composition, base 22 is a line segment parallel with the end face of the precast concrete culvert pipe, and first side 21 and second side 23 exist
The both sides on base 22 mirror image each other, first side 21 and second side 23 are a camber line or straightway, as shown in Figure 3.
In the present embodiment, the distance between sealing joint strip mounting groove 2 and rhone 1 less than sealing joint strip mounting groove 2 with
The distance between outer surface of the precast concrete culvert pipe, the depth of sealing joint strip mounting groove 2 is 10mm, sealing joint strip mounting groove
2 width is 35mm~45mm.The annular end face of precast concrete culvert pipe 10 should try one's best flat smooth.
A kind of prefabricated pipe gallery is described below, the above-mentioned precast concrete that the prefabricated pipe gallery contains multiple series connection is contained
Pipe 10, the end of two adjacent precast concrete culvert pipe 10 is docked, and adjacent the described of two precast concrete culvert pipe 10 prevents
The position of water discharge structure is corresponding, and as shown in Figures 2 and 3, the sealing joint strip of two adjacent precast concrete culvert pipe 10 is pacified
The first water expandable waterstop 5, i.e. a part for the first water expandable waterstop 5 is provided between tankage 2 to pacify positioned at sealing joint strip
In tankage 2, the second water expandable waterstop 6, the first water-swellable are additionally provided between two adjacent precast concrete culvert pipe 10
The water expandable waterstop 6 of sealing rod 5 and second is along the circumferentially disposed of the precast concrete culvert pipe, the second water expandable waterstop
The distance of 6 to rhone 1 is less than the second water expandable waterstop 6 to the distance of the inner surface of precast concrete culvert pipe 10.
The distance between two adjacent precast concrete culvert pipe 10 are 20mm~30mm, two adjacent precast concretes
The 3rd water expandable waterstop 7 is also provided between culvert pipe 10, the 3rd water expandable waterstop 7 is along the precast concrete culvert pipe
It is circumferentially disposed, the 3rd water expandable waterstop 7 is located at the interior table of the second water expandable waterstop 6 and precast concrete culvert pipe 10
Between face, as shown in Figure 3.According to service condition, the inner surface of the 3rd water expandable waterstop 7 and precast concrete culvert pipe 10 it
Between the 4th water expandable waterstop 8 and/or the 5th water expandable waterstop 9 can also be set.
The installation method of the prefabricated pipe gallery is described below：
The end of two adjacent precast concrete culvert pipe 10 is set into the first water expandable waterstop 5 and the second chance water is swollen
Swollen sealing rod 6, then docks the end of two adjacent precast concrete culvert pipe 10 by lifting, and adjacent two are prefabricated mixed
The position of the water-proof drainage structure of solidifying soil culvert pipe 10 is corresponding, and two adjacent precast concrete culvert pipe 10 pass through prestressing force
Rod iron is connected, as shown in Figures 2 and 3.
Make the UNICOM of piping lane gutter 4 of rhone 1 and piping lane bottom.
A kind of method for maintaining of prefabricated pipe gallery is described below, i.e., needs dimension when above-mentioned prefabricated pipe gallery goes wrong
When repairing, the method for maintaining of the prefabricated pipe gallery is comprised the following steps：
Step 1, when there is seepage in the junction for finding adjacent two precast concrete culvert pipe 10, meet water to second swollen
The 3rd water expandable waterstop 7 is put between the inner surface of swollen sealing rod 6 and precast concrete culvert pipe 10, the 3rd water-swellable stops
Water bar 7 is circumferentially disposed along the precast concrete culvert pipe, and the 3rd water expandable waterstop 7 is located at the second water expandable waterstop 6
And the inner surface of precast concrete culvert pipe 10 between.
If after using one section, above-mentioned prefabricated pipe gallery goes wrong when needing repairing, the prefabricated pipe gallery
Method for maintaining is further comprising the steps of：
Step 2, when there is seepage in the junction for finding adjacent two precast concrete culvert pipe 10, meet water to the 3rd swollen
The 4th water expandable waterstop 8 is put between the inner surface of swollen sealing rod 7 and precast concrete culvert pipe 10, the 4th water-swellable stops
Water bar 8 is circumferentially disposed along the precast concrete culvert pipe, and the 4th water expandable waterstop 8 is located at the 3rd water expandable waterstop 7
And the inner surface of precast concrete culvert pipe 10 between, as shown in Figure 3.
If after using one section, above-mentioned prefabricated pipe gallery goes wrong when needing repairing, water can also be met to the 4th swollen
The grade of the 5th water expandable waterstop 9 is put between the inner surface of swollen sealing rod 8 and precast concrete culvert pipe 10 (in this manner also
Can continue to be put into water expandable waterstop in the junction of two adjacent precast concrete culvert pipe 10), as shown in figure 3, logical
Cross and be repeatedly put into water expandable waterstop, can easily and fast solve leakage problems.The consumption ability of water expandable waterstop
The technical staff in domain can be adjusted as needed, be advisable with occurring without seepage.
The above, only specific embodiment of the utility model, it is impossible to which the scope that utility model is implemented, institute are limited with it
With the displacement of its equivalent assemblies, or the equivalent variations made according to the utility model scope of patent protection and modification, should all still fall within
The category that this patent is covered.In addition, between technical characteristic and technical characteristic in the utility model, technical characteristic and technical scheme
Between, can be used with independent assortment between technical scheme and technical scheme.
Claims (9)
1. a kind of precast concrete culvert pipe, it is characterised in that contain on the annular end face at the two ends of the precast concrete culvert pipe
Water-proof drainage structure, the water-proof drainage structure includes the circumferentially disposed rhone (1) and sealing along the precast concrete culvert pipe
Adhesive tape mounting groove (2), sealing joint strip mounting groove (2) is arranged between rhone (1) and the outer surface of the precast concrete culvert pipe
Distance interior table less than rhone (1) to the precast concrete culvert pipe of the tank (1) to the outer surface of the precast concrete culvert pipe
The distance in face.
2. precast concrete culvert pipe according to claim 1, it is characterised in that the section of the precast concrete culvert pipe is back
Font, is provided with the tensioning connecting hole (3) for being connected in the two ends of the precast concrete culvert pipe.
3. precast concrete culvert pipe according to claim 1, it is characterised in that the center line edge of the precast concrete culvert pipe
Horizontally arranged, the bottom of the inner surface of the precast concrete culvert pipe is provided with piping lane gutter (4), piping lane gutter (4) edge
The centerline direction of the precast concrete culvert pipe is set, and rhone (1) is connected with piping lane gutter (4).
4. precast concrete culvert pipe according to claim 1, it is characterised in that the wall thickness of the precast concrete culvert pipe is
200mm~300mm, the distance of rhone (1) to the inner surface of the precast concrete culvert pipe is 110mm~160mm.
5. precast concrete culvert pipe according to claim 1, it is characterised in that the wall thickness of the precast concrete culvert pipe is
250mm, the distance of rhone (1) to the inner surface of the precast concrete culvert pipe is 125mm, and the width of rhone (1) is 30mm,
The depth of rhone (1) is 30mm.
6. precast concrete culvert pipe according to claim 1, it is characterised in that the section of sealing joint strip mounting groove (2) by
First side (21), base (22) and second side (23) connection composition, base (22) are one and the precast concrete culvert pipe
The parallel line segment of end face, the both sides mirror image, first side each other of first side (21) and second side (23) in base (22)
And second side (23) are a camber line or straightway (21).
7. precast concrete culvert pipe according to claim 6, it is characterised in that sealing joint strip mounting groove (2) and rhone
The distance between (1) less than the distance between sealing joint strip mounting groove (2) and outer surface of the precast concrete culvert pipe, fluid sealant
The depth of bar mounting groove (2) is 10mm, and the width of sealing joint strip mounting groove (2) is 35mm~45mm.
8. a kind of prefabricated pipe gallery, it is characterised in that the prefabricated pipe gallery contains described in the claims 1 of multiple series connection
Precast concrete culvert pipe (10), the position of the water-proof drainage structure of adjacent two precast concrete culvert pipe (10) is relative
Should, it is provided with the first water expandable waterstop between the sealing joint strip mounting groove (2) of adjacent two precast concrete culvert pipe (10)
(5) the second water expandable waterstop (6), the first water-swellable are additionally provided between two, adjacent precast concrete culvert pipe (10)
, along the circumferentially disposed of the precast concrete culvert pipe, the second water-swellable stops for sealing rod (5) and the second water expandable waterstop (6)
Distance inner surface less than second water expandable waterstop (6) to precast concrete culvert pipe (10) of the water bar (6) to rhone (1)
Distance.
9. prefabricated pipe gallery according to claim 8, it is characterised in that two adjacent precast concrete culvert pipe (10)
The distance between be 20mm~30mm, be additionally provided with the 3rd water-swellable sealing between two adjacent precast concrete culvert pipe (10)
Bar (7), the 3rd water expandable waterstop (7) along the circumferentially disposed of the precast concrete culvert pipe, the 3rd water expandable waterstop (7)
Between the inner surface of the second water expandable waterstop (6) and precast concrete culvert pipe (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621415504.0U CN206308631U (en) | 2016-12-22 | 2016-12-22 | Precast concrete culvert pipe and precast comprehensive pipe gallery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621415504.0U CN206308631U (en) | 2016-12-22 | 2016-12-22 | Precast concrete culvert pipe and precast comprehensive pipe gallery |
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| Publication Number | Publication Date |
|---|---|
| CN206308631U true CN206308631U (en) | 2017-07-07 |
Family
ID=59247089
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621415504.0U Active CN206308631U (en) | 2016-12-22 | 2016-12-22 | Precast concrete culvert pipe and precast comprehensive pipe gallery |
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| Country | Link |
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| CN (1) | CN206308631U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638337A (en) * | 2016-12-22 | 2017-05-10 | 中冶京诚工程技术有限公司 | Prefabricated concrete culvert pipe, prefabricated comprehensive pipe gallery and maintenance method of comprehensive pipe gallery |
| CN113026689A (en) * | 2021-02-09 | 2021-06-25 | 中国能源建设集团广东省电力设计研究院有限公司 | Box culvert installation structure and installation method thereof |
-
2016
- 2016-12-22 CN CN201621415504.0U patent/CN206308631U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638337A (en) * | 2016-12-22 | 2017-05-10 | 中冶京诚工程技术有限公司 | Prefabricated concrete culvert pipe, prefabricated comprehensive pipe gallery and maintenance method of comprehensive pipe gallery |
| CN113026689A (en) * | 2021-02-09 | 2021-06-25 | 中国能源建设集团广东省电力设计研究院有限公司 | Box culvert installation structure and installation method thereof |
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