CN107842035A - A kind of ultra-high performance concrete precast assembly pipe gallery system and construction method - Google Patents
A kind of ultra-high performance concrete precast assembly pipe gallery system and construction method Download PDFInfo
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- CN107842035A CN107842035A CN201711194220.2A CN201711194220A CN107842035A CN 107842035 A CN107842035 A CN 107842035A CN 201711194220 A CN201711194220 A CN 201711194220A CN 107842035 A CN107842035 A CN 107842035A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- Environmental & Geological Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
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- Oil, Petroleum & Natural Gas (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
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 up of side plate, bottom plate, top plate and dividing plate；Dividing plate is fixed between the bottom panel and top panel；Contiguous prefabricated section is overlapped by ultra-high performance concrete paster.The invention also discloses the construction method of piping lane system.The prefabricated subsection of pipe gallery system of the present invention using high intensity, high tenacity, high-durability the material such as ultra-high performance concrete, constructed with reference to ultra-high performance concrete paster etc., improve rigidity, bearing capacity and the water resistance of piping lane, and the relatively conventional piping lane system of wall thickness of prefabricated subsection reduces, piping lane deadweight is significantly reduced, transport and lifting are convenient；The 50% of the as little as traditional piping lane system material dosage of piping lane material usage, it integrates production cost and 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
The present invention relates to a kind of urban operating mechanism construction equipment, more particularly, to a kind of ultra-high performance concrete precast assembly
Pipe gallery system and construction method.
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, dog-house, unified implementation management, are saved
Pipeline itself independent structures and earth excavation, can be effectively intensive utilize Urban spatial recourses.Its advantage is：Once
Excavate, concentrate construction, avoid same 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 the inspection shaft of various pipelines, room etc., improve the attractive in appearance of 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 are normal concrete cast in situs or common
Concrete prefabricated assembled 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 intermediate layer is pre-manufactured steel flaggy, and outer layer is cast-in-place concrete layer, and the piping lane is integrally positioned on a bed course,
The cast-in-place concrete layer is poured in the outside of pre-manufactured steel flaggy, and the inner side of the pre-manufactured steel flaggy is connected with steel skeleton, described
Steel skeleton is made up of ring girder steel and longitudinal girder steel, and the ring girder steel is made up of horizontal ring beam and vertical ring beam, the level
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, workload is big, efficiency is low, the cycle is long, is had a great influence by field condition, project implementing process to skilled work post according to
Lai Xinggao, cost are high, and 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 the A of CN 106351258, if the piping lane includes intervening
Section processed, the prefabricated subsection internal layer are steel skeleton, and intermediate layer is steel plate layer, and outer layer is concrete layer, is set in the steel plate layer
There is the steel plate of splicing, the steel skeleton is made up of ring girder steel and longitudinal girder steel, and longitudinal girder steel is by more couch in prefabricated subsection
Ring girder steel connects into that corridor shape is overall, forms the steel skeleton of space form, and the steel plate in steel plate layer is fixed in ring girder steel and vertical
To the outer surface of girder steel, the vertical, horizontal reinforcing bar of advance colligation is provided with the concrete layer, and 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 prestressed cable is anchored in by anchored end by anchorage.Unit be present in 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
Most innovative cement base engineering material in year, is a kind of superhigh intensity, superhigh tenacity, the new concrete of high-durability.
DSP（Densified Systems Containing homogeneously arranged ultrafine Particles
(containing equally distributed ultra-fine grain dense system)）, by filling 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, can be direct
For site operation.
The content of the invention
The technical problem to be solved in the present invention is：Overcome the deficiencies in the prior art, there is provided a kind of piping lane material property is good
And dosage is few, transporting and hoisting is convenient, from the big prefabricated ultra-high performance concrete pipe gallery system of heavy and light, rigidity, with
And the construction method of the pipe gallery system, the prefabricated ultra-high performance concrete pipe gallery body completed using the construction method
System, suitable for the area that ground geological conditions is poor, and seam is few compared with the prefabricated piping lane of normal concrete, good waterproof performance, durability
Height, comprehensive economic index increase.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of ultra-high performance concrete precast assembly pipe gallery system, is formed by several Precast Concrete Segmental Bridges, described prefabricated
Section is prepared by ultra-high performance concrete, and the prefabricated subsection is made up of side plate, bottom plate, top plate and dividing plate, contiguous prefabricated section
Mouth of connecting trough is overlapped with ultra-high performance concrete paster.
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 inner side of plate, bottom plate and top plate is the waffle harden structure being made up 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 dividing plate is made up of cross rib and plate, is fixed on
Between bottom plate and top plate；The thickness of dividing plate 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, its 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 section 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 corner 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, which is used to connect, answers
Power muscle preformed hole and prestressed stretch-draw anchor hole；Every 2 ~ 6 prefabricated subsections, are arranged to a prestress anchoraging in piping lane system
Section, i.e., presstressed reinforcing steel preformed hole is penetrated using deformed bar, and prestressing force zip is carried out in prestressed stretch-draw anchor hole
Tightly.
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 on the front and rear end of side plate and top plate respectively
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 of bottom plate sets T-slot mouth, and T-slot mouth is provided 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 dividing plate is provided with rack mounting apertures.
Further, the top surface of prefabricated subsection and side are provided with mouth of connecting trough.
Technical scheme as a further improvement：The mouth of connecting trough of contiguous prefabricated section passes through from upstream face to back side
DSP is overlapped with ultra-high performance concrete paster.
Further, the junction of ultra-high performance concrete paster 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 paster is 20 ~ 50cm, and its thickness is 5 ~ 15cm, institute
State the full wafer or be spliced by several piece burst that ultra-high performance concrete paster is formed in one, ultra-high performance concrete paster
It is lap joint that the junction of burst, which is provided with, it is preferable that lap joint is L-shaped or W shapes.
Further, the DSP thickness for bonding ultra-high performance concrete paster is 2 ~ 5cm.
Technical scheme is used by the present invention further solves its technical problem：
A kind of construction method of ultra-high performance concrete precast assembly pipe gallery system, comprises the following steps：
1) prefabricated component prepares：In factory or the above-mentioned prefabricated subsection of in-situ precast, and in the butt end of two prefabricated subsections to be connected
The connecting key and mouth of connecting trough of the bellmouth to match and socket are set, set presstressed reinforcing steel to reserve in the corner of prefabricated subsection
Hole, prefabricated ultra-high performance concrete paster；
2) excavation of foundation pit, supporting：Excavation of foundation pit is carried out using excavation equipment, and the foundation ditch to being excavated carries out supporting；
3) basement process and setting cushion：Screed step 2）The substrate of foundation ditch has been dug, then the construction of bed course is carried out in substrate,
Substrate and bed course are both needed to set construction joint and sump every 150m ~ 250m or so, and each segment distance is both needed to set longitudinal slope；
4) prefabricated subsection of piping lane system is lifted：Prefabricated section is hung to specified location by number；
5) stretch-draw prestressing force, tensioning is untill design load；
6) the bottom T-slot mouth filling ultra-high performance concrete of contiguous prefabricated section, optionally, in the connection of prefabricated subsection
Notch pastes ultra-high performance concrete paster with DSP；
7) piping lane waterproof is tested：Selected part section, carry out waterproof test；
8) soil body backfills：Back-filling in layers and tamp on request, lift height is 0.3 ~ 0.5m, and both sides, which are banketed, uses small-sized ramming machine
Or manually tamped, top layer is banketed and is optionally compacted using machinery.
A kind of beneficial effect of ultra-high performance concrete precast assembly pipe gallery system of the present invention：
The prefabricated subsection of pipe gallery system of the present invention using high intensity, high tenacity, high-durability ultra-high performance concrete etc.
Material, improves rigidity, bearing capacity and the water resistance of piping lane, and prefabricated subsection wall thickness it is relatively conventional piping lane system it is inclined
It is low, piping lane deadweight is significantly reduced, transport and lifting are convenient；
Amount of reinforcement is reduced, so as to reduce construction quality problem caused by the processes such as reinforcement welding, colligation；Work progress is simple just
Victory, the 50% of the as little as traditional piping lane system material dosage of piping lane material usage, the synthesis production cost of piping lane also correspondingly reduces 10
~50%；
Locking is fixed using prestressing force in the prefabricated subsection longitudinal direction of the piping lane of the present invention, and ultra-high performance concrete pasting board is in tensioning
Filled after prestressing force with DSP fittings and UHPC, it is low compared with normal concrete pipe gallery to ground requirement for bearing capacity from heavy and light, fit
The area poor for ground geological conditions.
Prefabricated subsection mouth of connecting trough is bonded using ultra-high performance concrete paster, and seam is compared with the prefabricated piping lane of normal concrete
Few, water proofing property, good endurance and construction are simple, and economic indicator is improved.
The prefabricated subsection of piping lane system is integral prefabricated in factory's progress, on-site consolidation, significantly shortens construction period,
Reduce influence of the site operation to surrounding enviroment.
Brief description of the drawings
Fig. 1-show for the solid of single prefabricated subsection in ultra-high performance concrete precast assembly pipe gallery system of the present invention
It is intended to；
Fig. 2-be ultra-high performance concrete precast assembly pipe gallery system of the present invention in single prefabricated subsection front view；
Fig. 3-be ultra-high performance concrete precast assembly pipe gallery system of the present invention in single prefabricated subsection top view；
Fig. 4-it is ultra-high performance concrete precast assembly pipe gallery system of the present invention（Part）Structural representation；
Fig. 5-it is Section A-A schematic diagram in Fig. 4；
The decomposing schematic representation of Fig. 6-be ultra-high performance concrete paster lap joint at B in Fig. 4；
The decomposition enlarged diagram of Fig. 7-be in Fig. 4 at C；
The enlarged diagram of Fig. 8-be in Fig. 5 at D；
The enlarged diagram of Fig. 9-be in Fig. 5 at E；
Figure 10-be connecting key in single prefabricated subsection in ultra-high performance concrete precast assembly pipe gallery system of the present invention
Structural representation.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Reference picture 1 ~ 10：A kind of ultra-high performance concrete precast assembly pipe gallery system of the present invention, it is prefabricated by several
Section assembling is formed, and the prefabricated subsection is prepared by ultra-high performance concrete, and the prefabricated subsection is by side plate 2, bottom plate 1, top plate 6
Formed with dividing plate 7, contiguous prefabricated section mouth of connecting trough ultra-high performance concrete paster 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
Inner side with top plate 6 is the waffle harden structure being made up of longitudinal rib 9, cross rib 8 with plate；The thickness of side plate 2 is 0.05m ~ 0.45m, top
The thickness of plate 6 is 0.05m ~ 0.45m, and the thickness of bottom plate 1 is 0.10m ~ 0.45m, and the dividing plate 7 is made up of cross rib 8 and plate, fixed
Between bottom plate 1 and top plate 6；The thickness of dividing plate 7 is 0.05m ~ 0.45m.
The longitudinal rib 9, wide 0.10m ~ 0.60m that cross rib 8 is rectangle or wedge, longitudinal rib 9 and cross rib 8, its 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 section 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 corner of prefabricated subsection, described
Prestressed stretch-draw anchor hole 17 is opened in the middle part of prefabricated subsection bottom plate 1 and the junction of side plate 2, 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 arranged to a prestressing force
Anchoring section, i.e., presstressed reinforcing steel preformed hole 5 is penetrated using deformed bar, and prestressing force is carried out in prestressed stretch-draw anchor hole 17
Tensioning is locked.
Prefabricated subsection is additionally provided with connecting key, and connecting key includes the socket 4 and bellmouth 12 that shape matches, socket 4 and bellmouth
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 of bottom plate 1 sets T-slot mouth 16, and T-slot mouth 16 is provided 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 and cross rib 8 of bottom plate 1, makes bottom plate 1 smooth.
The cross rib 8 of side plate 2 and/or dividing plate 7 is provided with rack mounting apertures 3.
The top surface of prefabricated subsection and side are provided with mouth of connecting trough 11.
The mouth of connecting trough 11 of contiguous prefabricated section passes through DSP ultra-high performance concrete pasters 13 from upstream face to back side
Overlap joint.
The junction of ultra-high performance concrete paster 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 paster 13 is 20 ~ 50cm, and its thickness is 10cm, institute
State the full wafer or be spliced by several piece burst that ultra-high performance concrete paster 13 is formed in one, ultra-high performance concrete patch
It is lap joint 15 that the junction of the burst of piece 13, which is provided with, and lap joint is L-shaped.
DSP thickness for bonding ultra-high performance concrete paster 13 is 2 ~ 5cm.
Technical scheme is used by the present invention further solves its technical problem：
A kind of construction method of ultra-high performance concrete precast assembly pipe gallery system, comprises the following steps：
1) prefabricated component prepares：In factory or the above-mentioned prefabricated subsection of in-situ precast, and in the butt end of two prefabricated subsections to be connected
The connecting key and mouth of connecting trough 11 of the bellmouth 12 and socket 4 to match are set, presstressed reinforcing steel is set in the corner of prefabricated subsection
Preformed hole 5, meanwhile, prefabricated ultra-high performance concrete paster 13；
2) excavation of foundation pit, supporting：Excavation of foundation pit is carried out using excavation equipment, and the foundation ditch to being excavated carries out supporting；
3) basement process and setting cushion：Screed step 2）The substrate of foundation ditch has been dug, then the construction of bed course is carried out in substrate,
Substrate and bed course are both needed to set construction joint and sump every 150m ~ 250m or so, and each segment distance is both needed to set longitudinal slope；
4) prefabricated subsection of piping lane system is lifted：Prefabricated section is hung to specified location by number；
5) stretch-draw prestressing force, tensioning is untill design load：Every 2 ~ 6 prefabricated subsections are pre- by connecting presstressed reinforcing steel in piping lane system
Box out the presstressed reinforcing steel in 5 and prestressed stretch-draw anchor hole 17, carry out prestressed stretch-draw locking；
6) the bottom T-slot mouth 16 of contiguous prefabricated section fills ultra-high performance concrete, optionally, in the company of prefabricated subsection
Access slot mouth 11 pastes ultra-high performance concrete paster 13 with DSP；
7) piping lane waterproof is tested：Selected part section, carry out waterproof test；
8) soil body backfills：Back-filling in layers and tamp on request, lift height is 0.3 ~ 0.5m, and both sides, which are banketed, uses small-sized ramming machine
Or manually tamped, top layer is banketed and is optionally compacted using machinery.
A kind of ultra-high performance concrete precast assembly pipe gallery system of the present invention, the bottom plate, side plate and top plate
The mechanics parameters such as rigidity of the thickness according to needed for piping lane system, intensity are adjusted, therefore embodiment part is not done and limited one by one, with
The change of upper technical characteristic, those skilled in the art is appreciated that and implemented by word description, therefore is no longer separately added as accompanying drawing
With explanation.
Claims (10)
1. a kind of ultra-high performance concrete precast assembly pipe gallery system, it is characterised in that by several Precast Concrete Segmental Bridges
Forming, the prefabricated subsection is prepared by ultra-high performance concrete, and the prefabricated subsection is made up of side plate, bottom plate, top plate and dividing plate,
Contiguous prefabricated section is overlapped by ultra-high performance concrete paster.
2. ultra-high performance concrete precast assembly pipe gallery system as claimed in claim 1, it is characterised in that the prefabricated section
Section is in factory or in-situ precast, and the length of prefabricated subsection be 1.0m ~ 4.5m, and the inner side of the side plate, bottom plate and top plate is by indulging
The waffle harden structure of rib, cross rib and plate composition；Dividing plate is made up 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 dividing plate is made up of cross rib and plate, be fixed on bottom plate and
Between top plate, the thickness of dividing plate is 0.05m ~ 0.45m.
3. ultra-high performance concrete precast assembly pipe gallery system as claimed in claim 1 or 2, it is characterised in that described vertical
Rib, wide 0.10m ~ 0.60m that cross rib is rectangle or wedge, longitudinal rib and cross rib, its a height of 0.10m ~ 0.60m, adjacent cross rib or vertical
Spacing between rib is 0.50m ~ 2.50m；Normal concrete is filled between the longitudinal rib and cross rib of the bottom plate, puts down bottom plate
It is whole.
4. ultra-high performance concrete precast assembly pipe gallery system as claimed in claim 1 or 2, it is characterised in that adjacent pre-
Section 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 corner of prefabricated subsection, and the prestressed stretch-draw anchor hole is opened
It is located at the middle part of prefabricated subsection bottom plate and side plate junction, every 2 ~ 6 prefabricated subsections in piping lane system, is arranged to one and in advance should
Power anchoring section, i.e., presstressed reinforcing steel preformed hole is penetrated using deformed bar, and prestressing force is carried out in prestressed stretch-draw anchor hole
Tensioning is locked.
5. ultra-high performance concrete precast assembly pipe gallery system as claimed in claim 1 or 2, it is characterised in that described pre-
Section 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 section, 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, it is characterised in that bottom plate
Cast-in-place linkage section sets T-slot mouth, and T-slot mouth is provided 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 provided with rack mounting apertures.
7. ultra-high performance concrete precast assembly pipe gallery system as claimed in claim 1 or 2, it is characterised in that prefabricated section
The top surface and side of section are provided with mouth of connecting trough.
8. ultra-high performance concrete precast assembly pipe gallery system as claimed in claim 7, it is characterised in that contiguous prefabricated section
The mouth of connecting trough of section is overlapped from upstream face to back side by DSP with ultra-high performance concrete paster.
9. ultra-high performance concrete precast assembly pipe gallery system as claimed in claim 8, it is characterised in that very-high performance mixes
The junction for coagulating native paster and mouth of connecting trough is equipped with tooth form construction；The width of the ultra-high performance concrete paster be 20 ~
50cm, its thickness are 5 ~ 15cm, the full wafer or spliced by several piece burst that the ultra-high performance concrete paster is formed in one
Form, it is lap joint that the junction of ultra-high performance concrete paster burst, which is provided with,；Used for bonding ultra-high performance concrete paster
DSP thickness be 2 ~ 5cm.
10. a kind of construction method of ultra-high performance concrete precast assembly pipe gallery system, comprises the following steps：
1) prefabricated component prepares：In prefabricated subsection as described in any one of claim 1 ~ 9 of factory or in-situ precast and prefabricated superelevation
Performance concrete paster；
2) excavation of foundation pit, supporting：Excavation of foundation pit is carried out using excavation equipment, and the foundation ditch to being excavated carries out supporting；
3) basement process and setting cushion：Screed step 2）The substrate of foundation ditch has been dug, then the construction of bed course is carried out in substrate,
Substrate and bed course are both needed to set construction joint and sump every 150m ~ 250m or so, and each segment distance is both needed to set longitudinal slope；
4) prefabricated subsection of piping lane system is lifted：Prefabricated section is hung to specified location；
5) stretch-draw prestressing force, tensioning is untill design load；
6) the bottom T-slot mouth filling ultra-high performance concrete of contiguous prefabricated section, optionally, in the connection of prefabricated subsection
Notch pastes ultra-high performance concrete paster with DSP；
7) piping lane waterproof is tested；
8) soil body backfills.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711194220.2A CN107842035B (en) | 2017-11-24 | 2017-11-24 | Ultra-high performance concrete prefabricated assembled comprehensive pipe gallery system and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711194220.2A CN107842035B (en) | 2017-11-24 | 2017-11-24 | Ultra-high performance concrete prefabricated assembled comprehensive pipe gallery system and construction method |
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| Publication Number | Publication Date |
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| CN107842035A true CN107842035A (en) | 2018-03-27 |
| CN107842035B CN107842035B (en) | 2023-03-17 |
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| CN108301440A (en) * | 2018-03-29 | 2018-07-20 | 沈阳建筑大学 | With waterproof, the underground pipe gallery construction method of drain function |
| CN108661079A (en) * | 2018-06-01 | 2018-10-16 | 西安交通大学 | A kind of precast assembly pipe-in-pipe impermeable structure pipe gallery and installation method |
| CN108687938A (en) * | 2018-04-03 | 2018-10-23 | 中铁局集团厦门建设工程有限公司 | A kind of pipe gallery prefabricated mould and piping lane construction method |
| CN108708309A (en) * | 2018-07-10 | 2018-10-26 | 湖南省交通规划勘察设计院有限公司 | A kind of the rectangular channel structure and its installation method of precast assembly |
| CN109339099A (en) * | 2018-11-08 | 2019-02-15 | 北京场道市政工程集团有限公司 | A kind of municipal works road pavement structure |
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| CN109339099B (en) * | 2018-11-08 | 2023-09-22 | 北京场道市政工程集团有限公司 | Municipal works road pavement structure |
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| CN111305266A (en) * | 2020-03-27 | 2020-06-19 | 深圳市市政设计研究院有限公司 | Light-duty underground comprehensive pipe gallery structure of prefabricated pin-connected panel of piecemeal |
| CN111305267A (en) * | 2020-03-27 | 2020-06-19 | 深圳市市政设计研究院有限公司 | UHPC prefabricated assembled comprehensive pipe gallery flat curve connecting segment structure and construction method |
| CN112267490A (en) * | 2020-10-10 | 2021-01-26 | 中路杜拉国际工程股份有限公司 | Mounting and machining method for partition plate of comprehensive pipe gallery |
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