CN108951698A - A kind of novel fabricated pipe gallery and attaching method thereof - Google Patents
A kind of novel fabricated pipe gallery and attaching method thereof Download PDFInfo
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- CN108951698A CN108951698A CN201710347433.8A CN201710347433A CN108951698A CN 108951698 A CN108951698 A CN 108951698A CN 201710347433 A CN201710347433 A CN 201710347433A CN 108951698 A CN108951698 A CN 108951698A
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- wall
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- abutment wall
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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
-
- 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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- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The invention belongs to engineering municipal administration fields, and in particular to a kind of novel fabricated pipe gallery and attaching method thereof, the technology are suitable for industrialization and build underground pipe gallery, and quality is stable, safe and reliable, energy conservation and environmental protection, construction efficiency are high.By using bearing plate, middle wall limb, abutment wall limb, abutment wall bottom cast-in-site stripe, the bottom Zhong Qiang cast-in-site stripe, bottom plate in-situ layer, T shape wall limb, composite beam, cross wall limb, end bay superimposed sheet, in across superimposed sheet, in-situ layer, L shape wall at the top of wall limb in the middle part of cast-in-site stripe in the middle part of cast-in-site stripe in the middle part of abutment wall, middle wall, abutment wall top wall limb, abutment wall, abutment wall, middle wall top portion T shape wall, top composite beam, top sides across in superimposed sheet, top across cast-in-site stripe, top sides across cast-in-site stripe, top cast-in-site stripe etc., mutually assembly is spliced to form the two-tube storehouse of upper layer and lower layer.
Description
Technical field
The invention belongs to engineering municipal administration fields, and in particular to a kind of novel fabricated pipe gallery and attaching method thereof, it should
Technology is suitable for industrialization and builds underground pipe gallery, and quality is stable, safe and reliable, energy conservation and environmental protection, construction efficiency are high.
Background technique
In underground pipe gallery construction tide, since the tradition cast-in-place excavation activity duration is long, communications and transportation is caused to be obstructed,
Ground surface environment is destroyed simultaneously, and construction efficiency is low, forming quality of products is poor etc., standardisation requirements are not achieved.If by traditional
Cast-in-place underground pipe gallery is changed to assembled construction, forms pipe storehouse by the way that prefabricated components are mutually assembled.The present invention provides a kind of novel dress
With formula pipe gallery and attaching method thereof, the piping lane construction efficiency is high, safe and reliable, can be greatly facilitated underground pipe gallery industrialization hair
Exhibition.
Summary of the invention
The object of the present invention is to provide a kind of novel fabricated pipe galleries and attaching method thereof, by using base mat
Plate, middle wall limb, abutment wall limb, abutment wall bottom cast-in-site stripe, the bottom Zhong Qiang cast-in-site stripe, bottom plate in-situ layer, T shape wall limb, composite beam, cross
Shape wall limb, end bay superimposed sheet, in across superimposed sheet, in-situ layer, cast-in-site stripe in the middle part of abutment wall, cast-in-site stripe, abutment wall top wall in the middle part of middle wall
Wall limb, abutment wall top L shape wall, middle wall top portion T shape wall, top composite beam, top sides are across in superimposed sheet, top in the middle part of limb, abutment wall
Across cast-in-site stripe, top sides across cast-in-site stripe, top cast-in-site stripe etc., mutually assembly is spliced to form the two-tube storehouse of upper layer and lower layer.
The object of the present invention is achieved like this: first on lifting bearing plate to levelling foundation structure, use is pre-buried
Bolt or the prior technologies such as slurry of sitting are fixed, and plate face dabbing, casting concrete simultaneously conserves；Then T shape wall limb, cross are lifted by crane
Wall limb, bottom reserved steel bar are press-connected using grout sleeve；Then support scaffolding, lifting overlapping are set up on bearing plate
It on beam, superimposed sheet to scaffold and installs, binding plate seam crossing reinforced mesh and casting concrete maintenance；Finally lift by crane on abutment wall
Wall limb in the middle part of portion's wall limb, abutment wall, is connect with grout sleeve with T shape wall limb, cross wall limb.It then sets up top composite beam, fold
Plywood support scaffolding.Lifting top composite beam and abutment wall top wall limb, in the middle part of abutment wall wall limb curved muscle using grout sleeve into
Row connection, while rectangular attached curved muscle and longitudinal reinforcement is arranged in L shape wall, middle wall top portion T shape wall zone at the top of abutment wall, pours mixed
Solidifying soil maintenance.Lifting top superimposed sheet is held on the composite beam of top, is bound plate seam crossing reinforced mesh and is poured coagulation maintenance.
To design strength, upper and lower level component support scaffolding is removed.
The purpose of the present invention is what is be achieved through the following technical solutions: (1) structure base slab is using prefabricated+cast-in-place coagulation of overlapping
Native technology realizes fabricated construction, and the safe and reliable of structure has been effectively ensured；(2) precast wall body is all made of reserved steel bar+grouting
Extrusion socket joint+rear pouring concrete technology realizes bottom and superstructure assembly connection, and globality is high；(3) this novel piping lane
Upper and lower two-tube storehouse is formed by the way that prefabricated components are mutually assembled, construction efficiency is high, can substantially shorten the excavation construction time, avoid handing over
Pass blocking plug.
Compared with the cast-in-place piping lane production method of existing tradition, the invention has the advantages that by industrialized production, use is prefabricated
The modes such as component is mutually assembled, node is cast-in-place form upper and lower double storehouses, and interconnection technique is safe and reliable, easy to operate, can be greatly
Construction efficiency is improved, the exposure duration of foundation pit is shortened.
Detailed description of the invention
Fig. 1: the structural plan figure of the embodiment of the present invention.
Fig. 2: the structure top view of the embodiment of the present invention.
Fig. 3: the cross-sectional view of the structure of the embodiment of the present invention.
In figure: in 1. bearing plate, 2. abutment wall limb 3. in 4. abutment wall limb of wall limb, 5. abutment wall bottom cast-in-site stripe 6.
7. abutment wall bottom cast-in-site stripe of wall bottom cast-in-site stripe, 8. 10. composite beam of bottom plate in-situ layer 9.T shape wall limb, 11. cross
Across 15. end bay superimposed sheet of superimposed sheet, 16. in-situ layer in 13. end bay superimposed sheet 14. of shape wall limb 12.T shape wall limb
17. wall middle part 19. abutment wall of cast-in-site stripe middle part 20. abutment wall top wall limb 21. of cast-in-site stripe in cast-in-site stripe 18. in the middle part of abutment wall
25. abutment wall top of wall top portion T shape wall in 22. abutment wall top wall limb of wall limb, 23. abutment wall top L shape wall 24. in the middle part of abutment wall
26. top composite beam of portion L shape wall, 27. top sides across in the top of superimposed sheet 28. across 29. top sides of superimposed sheet across overlapping
30. top cast-in-site stripe of plate.
Specific embodiment
In order to further describe the present invention, below with reference to embodiment and attached drawing, the invention will be further described.
Referring to Fig. 1, the product of the embodiment of the present invention includes bearing plate (1), abutment wall limb (2), middle wall limb (3), abutment wall limb
(4), abutment wall bottom cast-in-site stripe (5), the bottom Zhong Qiang cast-in-site stripe (6), abutment wall bottom cast-in-site stripe (7), bottom plate in-situ layer (8), T shape wall
Limb (9), composite beam (10), cross wall limb (11), T shape wall limb (12), end bay superimposed sheet (13), in across superimposed sheet (14), side
Across cast-in-site stripe (17), middle wall middle part cast-in-site stripe (18), abutment wall middle part cast-in-site stripe in the middle part of superimposed sheet (15), in-situ layer (16), abutment wall
(19), abutment wall top wall limb (20), wall limb (21) in the middle part of abutment wall, abutment wall top wall limb (22), L shape wall (23) at the top of abutment wall, in
Wall top portion T shape wall (24), L shape wall (25) at the top of abutment wall, top composite beam (26), top sides across in superimposed sheet (27), top across
Superimposed sheet (28), top sides are across superimposed sheet (29), top cast-in-site stripe (30).Bearing plate (1) is by abutment wall limb (2), middle wall limb
(3), abutment wall limb (4) with certain thickness concrete floor is integral prefabricated forms, abutment wall limb (2), middle wall limb (3), abutment wall limb
(4) certain altitude is reserved；Abutment wall limb (2), middle wall limb (3), abutment wall limb (4) are the shear wall equipped with double steel bar mesh sheet, respectively
Pass through abutment wall bottom cast-in-site stripe (5), the bottom Zhong Qiang cast-in-site stripe (6), abutment wall bottom cast-in-site stripe (7) and T shape wall limb (9), cross
Wall limb (11), T shape wall limb (12) connection；Abutment wall bottom cast-in-site stripe (5), the bottom Zhong Qiang cast-in-site stripe (6), abutment wall bottom cast-in-site stripe
It (7) is that pouring concrete forms horizontal longitudinal cast-in-site stripe behind reserved steel bar region；T shape wall limb (9), T shape wall limb (12) vertical two
Reserved steel bar is held, laterally the overhanging beam of a reserved uniform section, is in the milk compacted realization and composite beam (10) reserved steel bar by sleeve
Connection；Cross wall limb (11) is vertically the shear wall of reserved steel bar, is laterally the overhanging beam of reserved certain length, both ends point
Not Tong Guo grout sleeve connect with composite beam (10)；Composite beam (10) is the prefabricated structure of both ends reserved steel bar, the reserved stirrup in top
Part, upper part can shelve end bay superimposed sheet (13), in across superimposed sheet (14), end bay superimposed sheet (15), it is real to pass through in-situ layer (16)
Existing beam slab integrated connection；T shape wall limb (9), cross wall limb (11), T shape wall limb (12) by cast-in-site stripe (17) in the middle part of abutment wall, in
Cast-in-site stripe (18) in the middle part of wall, in the middle part of abutment wall cast-in-site stripe (19) respectively with wall limb (21), side in the middle part of abutment wall top wall limb (20), abutment wall
Wall top wall limb (22) connection；Wall limb (21), abutment wall top wall limb (22) top difference in the middle part of abutment wall top wall limb (20), abutment wall
It is connect with L shape wall (23), middle wall top portion T shape wall (24), abutment wall top L shape wall (25) at the top of abutment wall；L shape wall at the top of abutment wall
(23), middle wall top portion T shape wall (24), abutment wall top L shape wall (25) are prefabricated components, and end is reserved with protruding bar,
It is connect using grout sleeve with the reserved steel bar of top composite beam (26)；Top sides are shelved across overlapping in top composite beam (26) top
Realize that monoblock type connects by top cast-in-site stripe (30) across superimposed sheet (29) across superimposed sheet (28), top sides in plate (27), top
It connects.
The application method of the embodiment of the present invention is as follows: referring to Fig. 1 and Fig. 2, lifting by crane bearing plate (1) first to levelling mistake
In foundation structure, using pre-embedded bolt or sits the technologies such as slurry in advance and be fixed, plate face dabbing pours bottom plate in-situ layer (8) simultaneously
Maintenance；Then T shape wall limb (9), T shape wall limb (12), cross wall limb (11) are successively lifted by crane, bottom reserved steel bar is using grouting set
Cylinder connection is fixed on bearing plate (1) after adjusting verticality and designed elevation using skewed horizontal load.Carry out reinforced bar jointing sleeve
Cylinder grouting, it is closely knit using dry grout off in the two sides of seam, while two circular cavities are reserved respectively at wall longitudinal direction both ends, firmly
Slip casting is carried out by one of hole to be provided after change, there are a large amount of slurries to flow out to the other end, blocks immediately, do not taking out Grouting Pipe
In the case of continue slip casting certain time, make slurry full of entire gap, to guarantee that connection is reliable；Then in bearing plate (1)
On set up composite beam (10) bottom position support scaffolding, after checking design height, in lifting composite beam (10) to scaffold
And it installs.Floor scaffold is set up in bearing plate (1) again, after checking design height, successively lifts by crane end bay superimposed sheet respectively
(13), across superimposed sheet (14), end bay superimposed sheet (15) on composite beam (10) in, binding plate seam crossing reinforced mesh is simultaneously poured mixed
Solidifying soil in-situ layer (16) conserves；Finally lift by crane abutment wall top wall limb (20), abutment wall middle part wall limb (21), abutment wall top wall limb
(22), it after adjusting verticality and designed elevation, is fixed using skewed horizontal load, then with grout sleeve and T shape wall limb (9), T shape wall limb
(12), cross wall limb (11) connects.Set up on in-situ layer (16) top composite beam (26), top sides across superimposed sheet (27),
Across cast-in-site stripe (28), top sides across cast-in-site stripe (29) support scaffolding in top.Lifting top composite beam (26) and abutment wall top
Wall limb (20), wall limb (21) in the middle part of abutment wall, abutment wall top wall limb (22) curved muscle be attached using grout sleeve, while on side
Rectangular attached curved muscle and longitudinal direction is arranged in wall top portion L shape wall (23), middle wall top portion T shape wall (24), abutment wall top L shape wall (25) region
Reinforcing bar, casting concrete maintenance.Successively lifting top sides across superimposed sheet (27), top sides across in superimposed sheet (29), top across folded
Plywood (28) is held on top composite beam (26), binding plate seam crossing reinforced mesh and casting concrete (30) maintenance.To setting
After counting intensity, upper and lower level component support scaffolding is removed.
Preferably, bearing plate (1) used by the embodiment of the present invention uses precast reinforced concrete structure, using pre-
System+overlapping in-situ layer realizes piping lane foundation construction, and structural behaviour is excellent.
Preferably, abutment wall bottom used by the embodiment of the present invention cast-in-site stripe (5), the bottom Zhong Qiang cast-in-site stripe (6), abutment wall
Bottom cast-in-site stripe (7) is located at wall stress minimum, is avoided that structure wrecks.
Preferably, end bay superimposed sheet (13) used by the embodiment of the present invention, in across superimposed sheet (14), end bay superimposed sheet
(15) and top sides are across the plate stitch use generated across superimposed sheet (28), top sides across superimposed sheet (29) in superimposed sheet (27), top
End expansion loop muscle gos deep into overlapping layers anchoring, then penetrates longitudinal reinforcement casting concrete and form monolithic construction, structural bearing capacity
It is high.
Connect preferably, composite beam (10) both ends used by the embodiment of the present invention are all made of half grout sleeve and squeeze
It connects, greatly reduces the use of template, save the cost avoids wasting.
Claims (7)
1. a kind of novel fabricated pipe gallery and attaching method thereof, including bearing plate (1), abutment wall limb (2), middle wall limb (3),
Abutment wall limb (4), abutment wall bottom cast-in-site stripe (5), the bottom Zhong Qiang cast-in-site stripe (6), abutment wall bottom cast-in-site stripe (7), bottom plate in-situ layer
(8), T shape wall limb (9), composite beam (10), cross wall limb (11), T shape wall limb (12), end bay superimposed sheet (13), in across overlapping
Plate (14), end bay superimposed sheet (15), in-situ layer (16), cast-in-site stripe (17) in the middle part of abutment wall, cast-in-site stripe (18) in the middle part of middle wall, in abutment wall
Portion's cast-in-site stripe (19), abutment wall top wall limb (20), abutment wall middle part wall limb (21), abutment wall top wall limb (22), abutment wall top L shape wall
(23), middle wall top portion T shape wall (24), abutment wall top L shape wall (25), top composite beam (26), top sides are across superimposed sheet (27), top
Across superimposed sheet (28), top sides across superimposed sheet (29), top cast-in-site stripe (30) in portion, the bearing plate (1) is by abutment wall limb
(2), middle wall limb (3), abutment wall limb (4) and certain thickness concrete floor is integral prefabricated forms, abutment wall limb (2), middle wall limb
(3), abutment wall limb (4) reserves certain altitude；The abutment wall limb (2), middle wall limb (3), abutment wall limb (4) are equipped with double steel bar mesh sheet
Shear wall, pass through abutment wall bottom cast-in-site stripe (5), the bottom Zhong Qiang cast-in-site stripe (6), abutment wall bottom cast-in-site stripe (7) and T shape wall respectively
Limb (9), cross wall limb (11), T shape wall limb (12) connection；Abutment wall bottom cast-in-site stripe (5), the bottom Zhong Qiang cast-in-site stripe (6),
Abutment wall bottom cast-in-site stripe (7) is that pouring concrete forms horizontal longitudinal cast-in-site stripe behind reserved steel bar region；The T shape wall limb (9),
The vertical both ends reserved steel bar of T shape wall limb (12), the laterally overhanging beam of a reserved uniform section are in the milk compacted realization and folded by sleeve
Close the connection of beam (10) reserved steel bar；The cross wall limb (11) is vertically the shear wall of reserved steel bar, is laterally reserved certain
The overhanging beam of length, both ends pass through grout sleeve respectively and connect with composite beam (10)；The composite beam (10) is reserved for both ends
Reinforcing bar, top reserve the prefabricated components of stirrup, upper part can shelve end bay superimposed sheet (13), in it is folded across superimposed sheet (14), end bay
Plywood (15) realizes beam slab integrated connection by in-situ layer (16)；The T shape wall limb (9), cross wall limb (11), T shape wall limb
(12) by cast-in-site stripe (17), middle wall middle part cast-in-site stripe (18), abutment wall middle part cast-in-site stripe (19) in the middle part of abutment wall respectively and on abutment wall
Wall limb (21), abutment wall top wall limb (22) connection in the middle part of portion's wall limb (20), abutment wall；In abutment wall top wall limb (20), abutment wall
Portion's wall limb (21), abutment wall top wall limb (22) top respectively with abutment wall at the top of L shape wall (23), middle wall top portion T shape wall (24), abutment wall
Top L shape wall (25) connection；L shape wall (23), middle wall top portion T shape wall (24), abutment wall top L shape wall (25) are equal at the top of the abutment wall
For prefabricated components, end is reserved with protruding bar, is connect using grout sleeve with the reserved steel bar of top composite beam (26)；
Top composite beam (26) top shelve top sides across in superimposed sheet (27), top across superimposed sheet (28), top sides across overlapping
Plate (29) realizes monoblock type connection by top cast-in-site stripe (30).
2. a kind of novel fabricated pipe gallery according to claim 1 and attaching method thereof, it is characterised in that: described
Bearing plate (1) is precast reinforced concrete structure, completes the construction of piping lane bottom using prefabricated+overlapping in-situ layer.
3. a kind of novel fabricated pipe gallery according to claim 1 and attaching method thereof, it is characterised in that: described
The superstructure of bearing plate (1) be all made of reserved steel bar+grout sleeve be press-connected+rear pouring concrete technology realize bottom with
The connection of superstructure assembled integral.
4. a kind of novel fabricated pipe gallery according to claim 1 and attaching method thereof, it is characterised in that: described
Composite beam (10) both ends are all made of grout sleeve and are press-connected.
5. a kind of novel fabricated pipe gallery according to claim 1 and attaching method thereof, it is characterised in that: described
L shape wall (23), middle wall top portion T shape wall at the top of bottom plate in-situ layer (8), in-situ layer (16), top cast-in-site stripe (30) and abutment wall
(24), L shape wall (25) is cast-in-place concrete at the top of abutment wall, remaining is precast concrete.
6. a kind of novel fabricated pipe gallery according to claim 5 and attaching method thereof, it is characterised in that: described
L shape wall (23) at the top of abutment wall, middle wall top portion T shape wall (24), at the top of abutment wall at the top of L shape wall (25) reserved steel bar be all made of 90 ° it is curved
Grappling iron enters top panel area, is realized by sleeve grouting technique and is connected with top composite beam (26).
7. a kind of a kind of novel fabricated pipe gallery and attaching method thereof described in claim 1, it is characterised in that including
It is following steps in sequence:
Firstly, lifting bearing plate (1) to levelling mistake foundation structure on, using pre-embedded bolt or in advance sit slurry etc. technologies by its
Fixed, plate face dabbing pours bottom plate in-situ layer (8) and conserves；Then, T shape wall limb (9), T shape wall limb (12), ten are successively lifted by crane
Font wall limb (11), bottom reserved steel bar are connected using grout sleeve, after adjusting verticality and designed elevation, using skewed horizontal load
It is fixed on bearing plate (1)；Reinforcing steel bar connecting sleeve tube grouting is carried out, it is closely knit using dry grout off in the two sides of seam,
Two circular cavities are reserved respectively at wall longitudinal direction both ends simultaneously, and slip casting is carried out by one of hole to be provided after hardening, is had greatly to the other end
Slurry outflow is measured, is blocked immediately, continues slip casting certain time in the case where not taking out Grouting Pipe, makes slurry full of entire seam
Gap, to guarantee that connection is reliable；Then, composite beam (10) bottom position support scaffolding, school are set up on bearing plate (1)
After nuclear design height, in lifting composite beam (10) to scaffold and install；Floor scaffold, school are set up in bearing plate (1) again
After nuclear design height, respectively successively lift by crane end bay superimposed sheet (13), in across superimposed sheet (14), end bay superimposed sheet (15) in composite beam
(10) on, binding plate seam crossing reinforced mesh and casting concrete in-situ layer (16) maintenance；Finally, lifting abutment wall top wall limb
(20), wall limb (21), abutment wall top wall limb (22) in the middle part of abutment wall, it is solid using skewed horizontal load after adjusting verticality and designed elevation
It is fixed, then connect with grout sleeve with T shape wall limb (9), T shape wall limb (12), cross wall limb (11)；It is set up on in-situ layer (16)
Top composite beam (26), top sides across in superimposed sheet (27), top across cast-in-site stripe (28), top sides across cast-in-site stripe (29) support leg
Hand cradle；Lifting top composite beam (26) and abutment wall top wall limb (20), wall limb (21) in the middle part of abutment wall, abutment wall top wall limb (22)
Curved muscle is attached using grout sleeve, while L shape wall (23), middle wall top portion T shape wall (24), abutment wall top L at the top of abutment wall
Rectangular attached curved muscle and longitudinal reinforcement, casting concrete maintenance is arranged in shape wall (25) region；Successively lifting top sides are across superimposed sheet
(27), top sides bind plate seam crossing across being held on top composite beam (26) in superimposed sheet (29), top across superimposed sheet (28)
Reinforced mesh and casting concrete (30) maintenance；To design strength, upper and lower level component support scaffolding is removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710347433.8A CN108951698A (en) | 2017-05-17 | 2017-05-17 | A kind of novel fabricated pipe gallery and attaching method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710347433.8A CN108951698A (en) | 2017-05-17 | 2017-05-17 | A kind of novel fabricated pipe gallery and attaching method thereof |
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| CN108951698A true CN108951698A (en) | 2018-12-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111962860A (en) * | 2020-08-19 | 2020-11-20 | 山东金驰建设有限公司 | Design and construction method of shear key assembly type formwork of hollow sandwich plate |
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| CN206128119U (en) * | 2016-09-27 | 2017-04-26 | 明达地下空间科技发展有限公司 | Prefabricated assembled multi -deck utility tunnel |
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| CN111962860A (en) * | 2020-08-19 | 2020-11-20 | 山东金驰建设有限公司 | Design and construction method of shear key assembly type formwork of hollow sandwich plate |
| CN111962860B (en) * | 2020-08-19 | 2022-02-15 | 山东金驰建设有限公司 | Design and construction method of shear key assembly type formwork of hollow sandwich plate |
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