CN207484508U - A kind of ultra-high performance concrete precast assembly pipe gallery system - Google Patents
A kind of ultra-high performance concrete precast assembly pipe gallery system Download PDFInfo
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- CN207484508U CN207484508U CN201721591967.7U CN201721591967U CN207484508U CN 207484508 U CN207484508 U CN 207484508U CN 201721591967 U CN201721591967 U CN 201721591967U CN 207484508 U CN207484508 U CN 207484508U
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Abstract
A kind of ultra-high performance concrete precast assembly pipe gallery system, is formed by several Precast Concrete Segmental Bridges, and prefabricated subsection is prepared by ultra-high performance concrete, and prefabricated subsection is made of side plate, bottom plate, top plate and partition board；Partition board is fixed between the bottom panel and top panel；Contiguous prefabricated segment is overlapped by ultra-high performance concrete patch.The prefabricated subsection of the utility model pipe gallery system using high intensity, high tenacity, high-durability the materials such as ultra-high performance concrete, with reference to constructions such as ultra-high performance concrete patches, improve rigidity, bearing capacity and the water resistance of piping lane, and the piping lane system reduction that the wall thickness of prefabricated subsection is relatively traditional, piping lane dead weight is significantly reduced, transport and lifting are convenient；For piping lane material utilization amount down to the 50% of traditional piping lane system material dosage, synthesis production cost also correspondingly reduces 10 ~ 50%；Rigidity is big, and suitable for the area that ground geological conditions is poor, the short construction period of piping lane system, the influence to construction environment is small.
Description
Technical field
It is prefabricated more particularly, to a kind of ultra-high performance concrete the utility model is related to a kind of urban operating mechanism construction equipment
Assembled pipe gallery system.
Background technology
Pipe gallery be under town road construction one tunnel space, by plumbing, heating power, combustion gas, electric power, communication,
The various utilities pipelines such as broadcasting and TV are concluded wherein, and set the facilities such as special access hole, feeding port, and unified implementation management is saved
Pipeline itself independent structures and earth excavation, can be effectively intensive utilize Urban spatial recourses.Its advantage is：Once
It excavates, concentrates construction, avoid same a road section and repeat to excavate；Greatly facilitate the municipal administration pipe such as electric power, communication, combustion gas, plumbing
The maintenance and maintenance of line, reduce the expense repeatedly overhauled on road surface and the maintenance cost of utilities pipeline, maintain the complete of road surface
The durability of property and all kinds of pipelines；Reduce the roofbolt of road and inspection shaft, the room of various pipelines etc., improve the beauty in city
Effect；Pipe gallery gut line compact and reasonable arrangement, is effectively utilized the underground space, has saved urban land.
At present, the underground pipe gallery for being completed or just building, the overwhelming majority is for normal concrete cast in situs or commonly
Concrete prefabricated assembly piping lane.
A kind of partial precast assembly steel concrete combination underground pipe gallery, the piping lane as disclosed in CN106381886 A
Internal layer is steel skeleton, and middle layer is prefabricated steel layer, and outer layer is cast-in-place concrete layer, which is integrally positioned on a bed course,
The cast-in-place concrete layer is poured in the outside of prefabricated steel layer, and the inside of the prefabricated steel layer is connect with steel skeleton, described
Steel skeleton is made of circumferential girder steel and longitudinal girder steel, and the circumferential direction girder steel is made of horizontal ring beam and vertical ring beam, the level
It is connected between ring beam and vertical ring beam by splicing node.The combination underground pipe gallery uses cast-in-place normal concrete, exists
Difficulty of construction is big, heavy workload, efficiency is low, the period is long, is affected by field condition, project implementing process to skilled work post according to
Lai Xinggao, of high cost, quality, progress are difficult to control.Due to the pipe gallery as underground engineering have to durability it is very high
It is required that but normal concrete durability it is poor compared with ultra-high performance concrete, and steel collision be also easy to produce spark, admittedly may not apply to
Combustion gas piping lane, and steel are perishable, welding job amount is big.
A kind of full precast assembly steel concrete combination underground pipe galleries of 106351258 A of CN, if the piping lane includes intervening
Segment processed, the prefabricated subsection internal layer are steel skeleton, and middle layer is steel plate layer, and outer layer is concrete layer, is set in the steel plate layer
There is a steel plate of splicing, the steel skeleton is made of circumferential girder steel and longitudinal girder steel, and the longitudinal direction girder steel is by couch more in prefabricated subsection
Circumferential girder steel connects into that corridor shape is whole, forms the steel skeleton of space form, and the steel plate in steel plate layer is fixed in circumferential girder steel and vertical
The vertical, horizontal reinforcing bar bound in advance is equipped with to the outer surface of girder steel, in the concrete layer, and is reserved in the concrete layer
The drag-line duct of stretch-draw prestressing force drag-line and anchored end, each prefabricated subsection are positioned on bed course, and the prestressed cable, which passes through, to be drawn
Suo Kongdao tensioning drag-lines, and pass through anchorage and prestressed cable is anchored in anchored end.There are units for the combination underground pipe gallery
Length is from great, the deficiencies of transport, lifting are difficult, and segmental length is short, and seam is more, and construction cost is high.
Ultra-high performance concrete UHPC（Ultra-High Performance Concrete）, it is considered to be the past 30
Year in most innovative cement base engineering material, be a kind of superhigh intensity, superhigh tenacity, high-durability new concrete.
DSP（Densified Systems Containing homogeneously arranged ultrafine Particles
(containing equally distributed ultra-fine grain dense system)）, by adding silicon ash, silica flour, swelling agent and Nano-meter SiO_2 in cement2System
Into, there is early strong, high-strength, high fluidity, microdilatancy, the high-performance grouting material without bleeding, and prepare simply, it can be direct
For site operation.
Utility model content
The technical problems to be solved in the utility model is：Overcome the deficiencies of the prior art and provide a kind of piping lane material property
Good and dosage is few, transporting and hoisting is convenient, from the big prefabricated ultra-high performance concrete pipe gallery body of heavy and light, rigidity
System, the prefabricated ultra-high performance concrete pipe gallery system, suitable for the area that ground geological conditions is poor, and seam is more common
Concrete prefabricated piping lane is few, good waterproof performance, and durability is high, and comprehensive economic index increases.
Technical solution is used by the utility model solves its technical problem：
A kind of ultra-high performance concrete precast assembly pipe gallery system, is formed by several Precast Concrete Segmental Bridges, described
Prefabricated subsection is prepared by ultra-high performance concrete, and the prefabricated subsection is made of side plate, bottom plate, top plate and partition board, contiguous prefabricated
Segment mouth of connecting trough is overlapped with ultra-high performance concrete patch.
Further, the prefabricated subsection is in factory or in-situ precast, and the length of prefabricated subsection is 1.0m ~ 4.5m, the side
The inside of plate, bottom plate and top plate is the waffle harden structure being made of longitudinal rib, cross rib and plate；The thickness of side plate is 0.05m ~ 0.45m,
The thickness of top plate is 0.05m ~ 0.45m, and the thickness of bottom plate is 0.10m ~ 0.45m, and the partition board is made of cross rib and plate, is fixed on
Between bottom plate and top plate；The thickness of partition board is 0.05m ~ 0.45m.
Further, the longitudinal rib, wide 0.10m ~ 0.60m that cross rib is rectangle or wedge, longitudinal rib and cross rib, it is a height of
0.10m ~ 0.60m, the spacing between adjacent cross rib or longitudinal rib are 0.50m ~ 2.50m.
Further, contiguous prefabricated segment is locked by longitudinal prestressing device, and the longitudinal prestressing device includes in advance should
Power muscle preformed hole, prestressed stretch-draw anchor hole, presstressed reinforcing steel, the presstressed reinforcing steel preformed hole are opened in the quadrangle of prefabricated subsection,
The prestressed stretch-draw anchor hole is opened in the middle part of prefabricated subsection bottom plate and side plate junction, and presstressed reinforcing steel should for connecting
Power muscle preformed hole and prestressed stretch-draw anchor hole；Every 2 ~ 6 prefabricated subsections, are set as a prestress anchoraging in piping lane system
Section penetrates presstressed reinforcing steel preformed hole using presstressed reinforcing steel, and prestressed stretch-draw locking is carried out in prestressed stretch-draw anchor hole.
Further, prefabricated subsection is additionally provided with connecting key, and connecting key includes the socket and bellmouth that shape matches, and socket and holds
Mouth is separately positioned on prefabricated subsection interface, i.e., sets socket and bellmouth, connecting key respectively on the front and rear end of side plate and top plate
Use improve the splicing accuracy of piping lane, while the more rational stress of the interface also ensured.
Further, the cast-in-place linkage section setting T-slot mouth of bottom plate, T-slot mouth are equipped with embedded bar, and embedded bar passes through super
High performance concrete wraps up, and the thickness of top flange is 4 ~ 10cm.
Further, normal concrete is filled between the longitudinal rib of bottom plate and cross rib, makes bottom plate smooth.
Further, the cross rib of side plate and/or partition board is equipped with rack mounting apertures.
Further, the top surface of prefabricated subsection and side are equipped with mouth of connecting trough.
Technical solution as a further improvement：The mouth of connecting trough of contiguous prefabricated segment passes through from upstream face to back side
DSP is overlapped with ultra-high performance concrete patch.
Further, the junction of ultra-high performance concrete patch and piping lane mouth of connecting trough is equipped with tooth form construction.
According to execution conditions, the width of the ultra-high performance concrete patch is 20 ~ 50cm, and thickness is 5 ~ 15cm, institute
State the full wafer or be spliced by several piece fragment that ultra-high performance concrete patch is integrally formed, ultra-high performance concrete patch
The junction of fragment is equipped with as lap joint, it is preferable that lap joint is L-shaped or W-shaped.
Further, it is 2 ~ 5cm for bonding the DSP thickness of ultra-high performance concrete patch.
Technical solution is used by the utility model further solves its technical problem：
A kind of construction method of ultra-high performance concrete precast assembly pipe gallery system, includes the following steps：
1) prefabricated component prepares：In factory or the above-mentioned prefabricated subsection of in-situ precast, and in pair of two prefabricated subsections to be connected
Connecting key and mouth of connecting trough that end sets the bellmouth to match and socket are connect, setting presstressed reinforcing steel is pre- in the quadrangle of prefabricated subsection
It boxes out, prefabricated ultra-high performance concrete patch；
2) excavation of foundation pit, supporting：Excavation of foundation pit is carried out, and the foundation pit to being excavated carries out supporting using excavation equipment；
3) basement process and setting cushion：Screed step 2）The substrate of foundation pit has been dug, then bed course is carried out in substrate
Construction, substrate and bed course are both needed to setting construction joint and sump every 150m ~ 250m or so, and are both needed to setting per a distance and indulge
Slope；
4) prefabricated subsection of piping lane system is lifted：Prefabricated section is hung by number to designated position；
5) stretch-draw prestressing force, until tensioning to design value；
6) the bottom T-slot mouth filling ultra-high performance concrete of contiguous prefabricated segment, optionally, in prefabricated subsection
Mouth of connecting trough pastes ultra-high performance concrete patch with DSP；
7) piping lane waterproof is tested：Selected part segment carries out waterproof test；
8) soil body backfills：It back-filling in layers and tamps as required, lift height is 0.3 ~ 0.5m, and both sides are banketed to be beaten using small-sized
Tamping machine is manually tamped, and top layer is banketed and is optionally compacted using machinery.
A kind of advantageous effect of ultra-high performance concrete precast assembly pipe gallery system of the utility model：
The prefabricated subsection of the utility model pipe gallery system using high intensity, high tenacity, high-durability very-high performance
The materials such as concrete improve rigidity, bearing capacity and the water resistance of piping lane, and the piping lane that the wall thickness of prefabricated subsection is relatively traditional
System is relatively low, significantly reduces piping lane dead weight, and transport and lifting are convenient；
Amount of reinforcement is reduced, construction quality problem caused by so as to reduce the processes such as reinforcement welding, binding；Work progress letter
Single convenient, down to the 50% of traditional piping lane system material dosage, the synthesis production cost of piping lane also accordingly reduces piping lane material utilization amount
10 ~ 50%；
Locking, ultra-high performance concrete patch is fixed using prestressing force in the prefabricated subsection longitudinal direction of the piping lane of the utility model
Plate is filled after stretch-draw prestressing force with DSP fittings and UHPC, from heavy and light, to ground requirement for bearing capacity compared with normal concrete integrated pipe
Corridor is low, suitable for the area that ground geological conditions is poor.
Prefabricated subsection mouth of connecting trough is bonded using ultra-high performance concrete patch, and seam is compared with the prefabricated piping lane of normal concrete
Few, water proofing property, durability are good and construction is simple, and economic indicator is improved.
The prefabricated subsection of piping lane system is integral prefabricated in factory's progress, and on-site consolidation significantly shortens construction period,
Reduce influence of the site operation to surrounding enviroment.
Description of the drawings
Fig. 1-it is the vertical of single prefabricated subsection in the utility model ultra-high performance concrete precast assembly pipe gallery system
Body schematic diagram；
Fig. 2-for single prefabricated subsection in the utility model ultra-high performance concrete precast assembly pipe gallery system is just
View；
Fig. 3-bow for single prefabricated subsection in the utility model ultra-high performance concrete precast assembly pipe gallery system
View；
Fig. 4-it is the utility model ultra-high performance concrete precast assembly pipe gallery system（Part）Structural representation
Figure；
Fig. 5-it is Section A-A schematic diagram in Fig. 4；
The decomposition diagram of Fig. 6-for ultra-high performance concrete patch lap joint at B in Fig. 4；
Fig. 7-for the decomposition enlarged diagram at C in Fig. 4；
Fig. 8-for the enlarged diagram at D in Fig. 5；
Fig. 9-for the enlarged diagram at E in Fig. 5；
Figure 10-in single prefabricated subsection in the utility model ultra-high performance concrete precast assembly pipe gallery system
The structure diagram of connecting key.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and embodiments.
With reference to Fig. 1 ~ 10：A kind of ultra-high performance concrete precast assembly pipe gallery system of the utility model, by several
Precast Concrete Segmental Bridges form, and the prefabricated subsection is prepared by ultra-high performance concrete, the prefabricated subsection by side plate 2, bottom plate 1,
Top plate 6 and partition board 7 form, and contiguous prefabricated segment mouth of connecting trough ultra-high performance concrete patch 13 overlaps.
The prefabricated subsection is integral prefabricated in factory, and the length of prefabricated subsection is 1.0m ~ 4.5m, the side plate 2, bottom plate 1
Inside with top plate 6 is the waffle harden structure being made of longitudinal rib 9, cross rib 8 with plate；The thickness of side plate 2 is 0.05m ~ 0.45m, is pushed up
The thickness of plate 6 is 0.05m ~ 0.45m, and the thickness of bottom plate 1 is 0.10m ~ 0.45m, and the partition board 7 is made of cross rib 8 and plate, fixed
Between bottom plate 1 and top plate 6；The thickness of partition board 7 is 0.05m ~ 0.45m.
The longitudinal rib 9, cross rib 8 are rectangle or wedge, wide 0.10m ~ 0.60m of longitudinal rib 9 and cross rib 8, a height of 0.10m ~
0.60m, the spacing between adjacent cross rib 8 or longitudinal rib 9 are 0.50m ~ 2.50m.
Contiguous prefabricated segment is locked by longitudinal prestressing device, and the longitudinal prestressing device is reserved including presstressed reinforcing steel
Hole 5, prestressed stretch-draw anchor hole 17, presstressed reinforcing steel, the presstressed reinforcing steel preformed hole 5 is opened in the quadrangle of prefabricated subsection, described
Prestressed stretch-draw anchor hole 17 is opened in the middle part of prefabricated subsection bottom plate 1 and 2 junction of side plate, and presstressed reinforcing steel is pre- for connecting
Stress rib preformed hole 5 and prestressed stretch-draw anchor hole 17, every 2 ~ 6 prefabricated subsections in piping lane system, are set as a prestressing force
Anchoring section penetrates presstressed reinforcing steel preformed hole 5 using presstressed reinforcing steel, and prestressing force is carried out in prestressed stretch-draw anchor hole 17
Zipper is tight.
Prefabricated subsection is additionally provided with connecting key, and connecting key includes socket 4 and bellmouth 12, socket 4 and the bellmouth that shape matches
12 are separately positioned on prefabricated subsection interface, i.e., set socket 4 and bellmouth 12 respectively on the front and rear end of side plate 2 and top plate 6,
Connecting key improves the splicing accuracy of piping lane, while the interface stress also ensured is more reasonable.
The cast-in-place linkage section setting T-slot mouth 16 of bottom plate 1, T-slot mouth 16 is equipped with embedded bar 10, and embedded bar 10 passes through
Ultra-high performance concrete wraps up, and the thickness of top flange is 4 ~ 10cm.
Normal concrete is filled between the longitudinal rib 9 of bottom plate 1 and cross rib 8, makes bottom plate 1 smooth.
The cross rib 8 of side plate 2 and/or partition board 7 is equipped with rack mounting apertures 3.
The top surface and side of prefabricated subsection are equipped with mouth of connecting trough 11.
The mouth of connecting trough 11 of contiguous prefabricated segment passes through DSP ultra-high performance concrete patches 13 from upstream face to back side
Overlap joint.
The junction of ultra-high performance concrete patch 13 and the mouth of connecting trough 11 of prefabricated subsection is equipped with tooth form construction 14.
According to execution conditions, the width of the ultra-high performance concrete patch 13 is 20 ~ 50cm, thickness 10cm, institute
State the full wafer or be spliced by several piece fragment that ultra-high performance concrete patch 13 is integrally formed, ultra-high performance concrete patch
It is lap joint 15 that the junction of 13 fragment of piece, which is equipped with, and lap joint is L-shaped.
For bonding the DSP thickness of ultra-high performance concrete patch 13 as 2 ~ 5cm.
Technical solution is used by the utility model further solves its technical problem：
A kind of construction method of ultra-high performance concrete precast assembly pipe gallery system, includes the following steps：
1) prefabricated component prepares：In factory or the above-mentioned prefabricated subsection of in-situ precast, and in pair of two prefabricated subsections to be connected
Bellmouth 12 and the connecting key of socket 4 and the mouth of connecting trough 11 that end setting matches are connect, setting in advance should in the quadrangle of prefabricated subsection
Power muscle preformed hole 5, meanwhile, prefabricated ultra-high performance concrete patch 13；
2) excavation of foundation pit, supporting：Excavation of foundation pit is carried out, and the foundation pit to being excavated carries out supporting using excavation equipment；
3) basement process and setting cushion：Screed step 2）The substrate of foundation pit has been dug, then bed course is carried out in substrate
Construction, substrate and bed course are both needed to setting construction joint and sump every 150m ~ 250m or so, and are both needed to setting per a distance and indulge
Slope；
4) prefabricated subsection of piping lane system is lifted：Prefabricated section is hung by number to designated position；
5) stretch-draw prestressing force, until tensioning to design value：Every 2 ~ 6 prefabricated subsections are by connecting prestressing force in piping lane system
Muscle preformed hole 5 and the presstressed reinforcing steel in prestressed stretch-draw anchor hole 17 carry out prestressed stretch-draw locking；
6) the bottom T-slot mouth 16 of contiguous prefabricated segment fills ultra-high performance concrete, optionally, in prefabricated subsection
Mouth of connecting trough 11 paste ultra-high performance concrete patch 13 with DSP；
7) piping lane waterproof is tested：Selected part segment carries out waterproof test；
8) soil body backfills：It back-filling in layers and tamps as required, lift height is 0.3 ~ 0.5m, and both sides are banketed to be beaten using small-sized
Tamping machine is manually tamped, and top layer is banketed and is optionally compacted using machinery.
A kind of ultra-high performance concrete precast assembly pipe gallery system of the utility model, the bottom plate, side plate and top
The mechanics parameters such as rigidity, intensity of the thickness of plate according to needed for piping lane system are adjusted, therefore embodiment part is not done and limited one by one
Fixed, the change of more than technical characteristic, those skilled in the art is appreciated that and is implemented by word description, therefore is no longer separately made attached
Figure is illustrated.
Claims (10)
1. a kind of ultra-high performance concrete precast assembly pipe gallery system, which is characterized in that by several Precast Concrete Segmental Bridges
It forming, the prefabricated subsection is prepared by ultra-high performance concrete, and the prefabricated subsection is made of side plate, bottom plate, top plate and partition board,
Contiguous prefabricated segment is overlapped by ultra-high performance concrete patch.
2. ultra-high performance concrete precast assembly pipe gallery system as described in claim 1, which is characterized in that the prefabricated section
Section is in factory or in-situ precast, and the length of prefabricated subsection is 1.0m ~ 4.5m, and the inside of the side plate, bottom plate and top plate is by indulging
The waffle harden structure of rib, cross rib and plate composition；Partition board is made of cross rib and plate；The thickness of side plate is 0.05m ~ 0.45m, top plate
Thickness is 0.05m ~ 0.45m, and the thickness of bottom plate is 0.10m ~ 0.45m；The partition board is made of cross rib and plate, be fixed on bottom plate and
Between top plate, the thickness of partition board is 0.05m ~ 0.45m.
3. ultra-high performance concrete precast assembly pipe gallery system as claimed in claim 2, which is characterized in that the longitudinal rib,
Cross rib is rectangle or wedge, wide 0.10m ~ 0.60m of longitudinal rib and cross rib, a height of 0.10m ~ 0.60m, adjacent cross rib or longitudinal rib it
Between spacing be 0.50m ~ 2.50m；Normal concrete is filled between the longitudinal rib and cross rib of the bottom plate, makes bottom plate smooth.
4. ultra-high performance concrete precast assembly pipe gallery system as claimed in claim 1 or 2, which is characterized in that adjacent pre-
Segment processed is locked by longitudinal prestressing device, and the longitudinal prestressing device includes presstressed reinforcing steel preformed hole, prestressed stretch-draw
Anchor hole, presstressed reinforcing steel, the presstressed reinforcing steel preformed hole are opened in the quadrangle of prefabricated subsection, and the prestressed stretch-draw anchor hole is opened
Be located at the middle part of prefabricated subsection bottom plate and side plate junction, every 2 ~ 6 prefabricated subsections in piping lane system, be set as one it is pre-
Stress anchoring section penetrates presstressed reinforcing steel preformed hole using deformed bar, and in prestressed stretch-draw anchor hole in advance should
Power tensioning is locked.
5. ultra-high performance concrete precast assembly pipe gallery system as claimed in claim 1 or 2, which is characterized in that described pre-
Segment processed is additionally provided with connecting key, and connecting key includes the socket and bellmouth that shape matches, and socket and bellmouth are separately positioned on prefabricated
On the interface of segment, i.e., socket and bellmouth are set respectively on the front and rear end of side plate and top plate.
6. ultra-high performance concrete precast assembly pipe gallery system as claimed in claim 1 or 2, which is characterized in that bottom plate
Cast-in-place linkage section sets T-slot mouth, and T-slot mouth is equipped with embedded bar, and embedded bar is wrapped up by ultra-high performance concrete, cast-in-place
The thickness of the top flange of section ultra-high performance concrete is 4 ~ 10cm；The cross rib of side plate is equipped with rack mounting apertures.
7. ultra-high performance concrete precast assembly pipe gallery system as claimed in claim 1 or 2, which is characterized in that prefabricated section
The top surface and side of section are equipped with mouth of connecting trough.
8. ultra-high performance concrete precast assembly pipe gallery system as claimed in claim 7, which is characterized in that contiguous prefabricated section
The mouth of connecting trough of section is overlapped from upstream face to back side by DSP ultra-high performance concrete patches.
9. ultra-high performance concrete precast assembly pipe gallery system as claimed in claim 7, which is characterized in that very-high performance mixes
The junction of solidifying soil patch and mouth of connecting trough is equipped with tooth form construction.
10. ultra-high performance concrete precast assembly pipe gallery system as described in claim 1, which is characterized in that the superelevation
The width of performance concrete patch is 20 ~ 50cm, and thickness is 5 ~ 15cm, and the ultra-high performance concrete patch is integrally formed
Full wafer or be spliced by several piece fragment, the junction of ultra-high performance concrete patch fragment is equipped with as lap joint；For
The DSP thickness for bonding ultra-high performance concrete patch is 2 ~ 5cm.
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| CN201721591967.7U CN207484508U (en) | 2017-11-24 | 2017-11-24 | A kind of ultra-high performance concrete precast assembly pipe gallery system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842035A (en) * | 2017-11-24 | 2018-03-27 | 湖南大学 | A kind of ultra-high performance concrete precast assembly pipe gallery system and construction method |
| CN113944219A (en) * | 2021-09-14 | 2022-01-18 | 北京市政建设集团有限责任公司 | Construction process for prefabricating gutter inlet |
-
2017
- 2017-11-24 CN CN201721591967.7U patent/CN207484508U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842035A (en) * | 2017-11-24 | 2018-03-27 | 湖南大学 | A kind of ultra-high performance concrete precast assembly pipe gallery system and construction method |
| CN107842035B (en) * | 2017-11-24 | 2023-03-17 | 湖南大学 | Ultra-high performance concrete prefabricated assembled comprehensive pipe gallery system and construction method |
| CN113944219A (en) * | 2021-09-14 | 2022-01-18 | 北京市政建设集团有限责任公司 | Construction process for prefabricating gutter inlet |
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