CN109137972A - A kind of assembled integral basement structure and its safely and fast construction method - Google Patents
A kind of assembled integral basement structure and its safely and fast construction method Download PDFInfo
- Publication number
- CN109137972A CN109137972A CN201810996404.9A CN201810996404A CN109137972A CN 109137972 A CN109137972 A CN 109137972A CN 201810996404 A CN201810996404 A CN 201810996404A CN 109137972 A CN109137972 A CN 109137972A
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- prefabricated
- basement
- bottom plate
- cast
- concrete
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- 238000010276 construction Methods 0.000 title claims abstract description 60
- 239000004567 concrete Substances 0.000 claims abstract description 65
- 239000012528 membrane Substances 0.000 claims abstract 7
- 238000004078 waterproofing Methods 0.000 claims abstract 3
- 239000011150 reinforced concrete Substances 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 230000002787 reinforcement Effects 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 2
- 238000011065 in-situ storage Methods 0.000 description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000007569 slipcasting Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 238000003912 environmental pollution Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- 229920002472 Starch Polymers 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- -1 drainage systems Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
- E02D31/025—Draining membranes, sheets or fabric specially adapted therefor, e.g. with dimples
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
本发明公开了一种装配整体式地下室结构及其快速安全施工方法，快速安全施工方法包括：在预定地基上设置素混凝土垫层并铺贴防水卷材；在防水卷材上安装预制底板。将预制底板之间纵横向连接；将外边缘预制底板与预制外墙连接；将地下室预制顶板梁与现浇混凝土柱连接；将地下室预制顶板与预制顶板梁连接。预制构件节点连接完成后在其一侧现浇混凝土叠合层。本发明能够地下室施工过程中通过预制构件快速安全施工以节省大笔资金、缩短工期，同时通过预制底板板面及预制外墙墙面上预留的孔洞沟通联系地下室内外水力平衡以满足施工期间极端情况下地下室抗浮稳定要求并适时完成预制构件叠合层的施工以满足地下室使用期间防水抗渗要求。
The invention discloses an assembled integral basement structure and a fast and safe construction method thereof. The fast and safe construction method comprises: arranging a plain concrete cushion on a predetermined foundation and laying a waterproofing membrane; installing a prefabricated bottom plate on the waterproofing membrane. Connect the prefabricated bottom plates vertically and horizontally; connect the outer edge prefabricated bottom plates with the prefabricated outer walls; connect the basement prefabricated roof beams with the cast-in-place concrete columns; connect the basement prefabricated top plates with the prefabricated roof beams. After the connection of the precast member nodes is completed, the superimposed layer of cast-in-place concrete is placed on one side. The invention can quickly and safely construct the basement through prefabricated components to save a large amount of money and shorten the construction period. Under the circumstance, the anti-floating stability of the basement is required and the construction of the prefabricated member superimposed layer is completed in time to meet the waterproof and anti-seepage requirements during the use of the basement.
Description
Technical field
The present invention relates to field of civil engineering, specifically, in particular to a kind of assembled integral basement structure and its
Safely and fast construction method.
Background technique
The nearly more than ten years with reform and opening-up further in-depth, the development of China's economic crossover formula driven urbanization into
Journey.The quickening of urbanization process also brings a series of problem, for example urban population is intensive, traffic deterioration, environmental pollution etc.
"urban disease".To solve problems faced in above-mentioned urbanization process, large-scale develops and utilizes the underground space and become city and determine
Inevitable the wanted problems faced of plan person.
The attached formula basement of building of civil buildings is one of the Main way greatly developed in current China's urban construction.Due to ground
Lower room is completely or partially embedded under earth's surface in the Rock And Soil of certain depth, and level of ground water rising or ground are met in work progress
Basement stability against floating requirement when table water pours into foundation pit, the basement after building up will meet water proof anti-seepage requirement, therefore at present
Lower room is usually made cast-in-situ steel reinforced concrete enclosed construction, and basement takes necessary measure of anti float in the construction process, and adopts
With water-proof concrete, waterproof roll, water-repellent paint, drainage systems, bentonite waterproof material, waterproof mortar and metal splash guard
Etc. modes come water proof anti-seepage requirement during meeting use.
There are monolithic reinforced concrete structure materials to be easy, with material rationally, durability, fire resistance, normability, globality etc.
Advantage, therefore largely it is widely used in construction industry field.However there is also from great, crack resistance for monolithic reinforced concrete structure
Shortcomings, the especially cast-in-place concretes such as difference, heat-and sound-insulating performance difference and construction period pollution environment are poured smash after need it is longer
The maintenance of time, it is also contemplated that construction period underground water rises and surface water pours into basement stability against floating problem after foundation pit.This
Inevitable schedule delays increase cost.
Summary of the invention
To solve existing cast-in-situ steel reinforced concrete basement technical problem, it is whole that the embodiment of the invention provides a kind of assembly
Formula basement structure and its fast and safe construction method.The technical solution is as follows:
On the one hand, a kind of assembled integral basement structure is provided, comprising: plain concrete cushion layer, prefabricated panel, prefabricated
Exterior wall；
The plain concrete cushion layer and paving waterproof roll are set on predetermined ground；It is installed on the waterproof roll described pre-
Bottom plate processed；The prefabricated panel vertically and horizontally connects；The outer edge prefabricated panel is connect with the precast facade；The prefabricated bottom
Plate lower surface is provided with grouting behind shaft or drift lining concrete, and the prefabricated panel upper surface is provided with cast-in-place concrete bottom plate overlapping layers.
Further, the prefabricated panel vertical and horizontal section can be made "-", " ︺ ", " transversal I ", " ︹ " form or other
Form, vertically and horizontally side steel bar stress uses the bottom plate overlapping layers of cast-in-place concrete in due course after sleeve mechanical connection to prefabricated panel.
Further, reserving hole is provided in the prefabricated panel plate face.
Further, basement outer edge prefabricated panel section is made " ﹂ " form, and the form of fracture of outer wall of basement can
To be " I ", " ︱ ", " [" or "] " or other forms, and the reserving hole on its metope, by outer edge prefabricated panel and prefabricated outer
The steel bar stress of wall passes through slip casting sleeve connection, and setting seat is starched at joint face.
Further, between the precast facade by casing by cast-in-situ concrete columns again after stress main reinforcement mechanical connection,
It completes between precast facade and after the connection of cast-in-situ concrete columns, then in due course cast-in-place concrete exterior wall overlapping layers.
On the other hand, a kind of assembled integral basement fast and safe construction method is provided, comprising:
Plain concrete cushion layer and paving waterproof roll are set on predetermined ground；
Prefabricated panel is installed on setting waterproof roll；
The outer edge prefabricated panel is connect with precast facade；
The precast facade is connected by cast-in-situ concrete columns；
Prefabricated top plate beam is connect with the cast-in-situ reinforced concrete column；
Prefabricated top plate beam is connect with the prefabricated top plate of the basement.
Further, the size of above-mentioned prefabricated panel, precast facade, prefabricated top plate beam and prefabricated top plate can be according to column away from big
Small determination.
Further, the step of installing prefabricated panel on waterproof roll is set described specifically:
The prefabricated panel, the vertical muscle of cast-in-situ reinforced concrete column and basis wait cast-in-place coagulation after being mechanically connected using casing
The construction of earth pillar；
Vertically and horizontally side steel bar stress is mechanically connected the prefabricated panel using sleeve；
Reserving hole is set in the prefabricated panel plate face, is infused by reserving hole on prefabricated panel in the suitable time
Concrete grout fills the space being recessed below prefabricated panel, then the cast-in-place concrete bottom plate overlapping layers above prefabricated panel；
Wherein, the suitable time are as follows: when basement structure meets construction period stability against floating requirement.
Further, by the basement outer edge prefabricated panel and precast facade Connection Step specifically:
The outer edge prefabricated panel and the precast facade pass through the laggard horizontal high voltage slip casting of slip casting sleeve connection；
The needs for meeting stability against floating during basement construction, the reserving hole on precast facade metope are reserved in prefabricated
Hole on outer surface of wall can link up hydraulic equilibrium inside and outside connection basement；
Complete the connection of precast facade and cast-in-situ concrete columns；
Finally complete the construction of cast-in-place concrete exterior wall overlapping layers in due course in the side of precast facade.
Technical solution provided in an embodiment of the present invention has the benefit that
To solve formula basement of building attached at present using the longer curing time of monolithic reinforced concrete structure needs, construction time
Between face many engineering roadblocks such as underground structure stability against floating, the requirements such as water proof anti-seepage are met during basement use and propose one
Kind assembled integral basement fast and safe construction method.
Relative to cast-in-situ steel reinforced concrete integral basement structure, a kind of assembled integral basement structure of the present invention have with
Lower advantage: 1. prefabricated components are produced in batches in PC factory, high-efficient, quality is guaranteed；2. a large amount of construction templates are saved at scene；
3. reducing labour, cross-operation is convenient, accelerates construction progress, construction is not affected by the weather；4. installation accuracy is high, matter of constructing
It measures guaranteed；5. energy-saving and emission-reduction, reducing environmental pollution 6. can significantly save the cost when basement is larger；6. prefabricated structure
Part (prefabricated panel and precast facade) reserving hole on plate (or wall) face in production, it is anti-to meet construction period underground structure
Floating stability requirement；7. prefabricated components are installed afterwards in due course in the side cast-in-place concrete overlapping layers of prefabricated components, therefore underground
Cell structure has good globality, bearing capacity characteristics, anti-seismic performance and during being able to satisfy construction period stability against floating and use
Water proof anti-seepage requirement.
The present invention can assembled integral is attached build formula basement construction during fast and safely being applied by prefabricated components
Work can also be passed through reserved with saving extensive fund, shortening the construction period in prefabricated panel plate face and on precast facade metope
The mode of hole links up inside and outside connection construction period basement hydraulic equilibrium to meet the anti-of the basement structure under extreme case
Floating stability requirement, in suitable time (when basement structure meets construction period stability against floating requirement) completion prefabricated panel and in advance
The cast-in-place concrete overlapping layers of exterior wall processed is with water proof anti-seepage requirement during meeting basement use.Therefore the present invention is a kind of is worth
It promotes, the extensive basement fast and safe construction method of application prospect.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is that the prefabricated panel of the embodiment of the present invention one vertically and horizontally connects drawing；
Fig. 2 is that the basement outer edge prefabricated panel of the embodiment of the present invention one connect drawing with precast facade；
Fig. 3 is precast facade connection drawing (top view) of the embodiment of the present invention one.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment one
The present invention provides a kind of assembled integral basement structure and its fast and safe construction methods, referring to Fig. 1-3, packet
It includes: plain concrete cushion layer 2, prefabricated panel 5, precast facade 10；
The plain concrete cushion layer 2 and paving waterproof roll are set on predetermined Foundation Pit bottom ground 1；On the waterproof roll
The prefabricated panel 5 is installed；It is vertically and horizontally connected between the prefabricated panel 5；The outer edge prefabricated panel 5 with it is described prefabricated outer
Wall 10 connects；5 lower surface of prefabricated panel is provided with grouting behind shaft or drift lining concrete 3, and 5 upper surface of prefabricated panel is provided with cast-in-place
Concrete floor overlapping layers 6.
Further, 5 vertical and horizontal section of prefabricated panel can be made "-", " ︺ ", " transversal I ", " ︹ " form or other shapes
Formula, the cast-in-place concrete bottom plate overlapping layers 6 in due course after vertically and horizontally side steel bar stress is mechanically connected using sleeve 7 by prefabricated panel.
Further, reserving hole 4 is provided in the prefabricated panel plate face to exist to meet construction period basement structure
Stability against floating requirement under extreme case.
Further, basement outer edge prefabricated panel section is made into " ﹂ " form, the section of basement precast facade 10
Form can be " I ", " ︱ ", " [" or "] " form and the reserving hole in its plate face, by outer edge prefabricated panel 5 and prefabricated outer
The steel bar stress of wall is connected by slip casting sleeve 8, and setting seat starches 9 at joint face.
Further, stress main reinforcement is mechanically connected by cast-in-situ concrete columns 12 by casing 7 between precast facade 10, completed
Between precast facade and after the connection of cast-in-situ concrete columns, then in due course cast-in-place concrete exterior wall overlapping layers 11.
Embodiment two
On the other hand, a kind of assembled integral basement fast and safe construction method is provided, comprising:
Plain concrete cushion layer and paving waterproof roll are set on predetermined ground；
Prefabricated panel is mounted and connected on the good waterproof roll of paving.
Basement outer edge prefabricated panel is connected with precast facade；
Basement precast facade is connected by cast-in-situ concrete columns；
The prefabricated top plate beam of basement is connect with cast-in-situ concrete columns；
The prefabricated top plate of basement is connect with prefabricated top plate beam.
Further, on the waterproof roll set the step of installation overlapping bottom plate specifically:
Prefabricated panel, the vertical muscle of cast-in-situ reinforced concrete column and basis wait cast-in-place concrete section after being mechanically connected using casing
Point connection and the construction of cast-in-situ concrete columns；
Vertically and horizontally side steel bar stress is mechanically connected prefabricated panel using sleeve；
Reserving hole is set in prefabricated panel plate face, (basement structure meets construction in the suitable time by hole
Period stability against floating require when) grouting behind shaft or drift lining Concrete Filled prefabricated panel lower recess space, then in due course on prefabricated panel
Square cast-in-place concrete bottom plate overlapping layers.
Further, the step of connection basement outer edge overlapping bottom plate and outside overlap wall specifically:
Outer edge prefabricated panel and precast facade, which will pass through slip casting sleeve, to carry out high pressure injection again after stress main reinforcement mechanical connection
Slurry；
To meet basement construction period stability against floating needs, the reserving hole on precast facade metope, reserving hole energy
Link up hydraulic equilibrium inside and outside connection basement；
Complete the connection between precast facade with cast-in-situ concrete columns；
Finally in due course in precast facade side cast-in-place concrete exterior wall overlapping layers.
Specifically, in the present embodiment, a kind of assembled integral basement fast and safe construction method of the present invention is mainly solved
Between basement prefabricated panel, between basement outer edge overlapping bottom plate and overlapping exterior wall and between basement overlapping exterior wall and now
Quick, the safe and reliable connection of pouring concrete column.Detailed work progress has following steps:
Step 1: plain concrete cushion layer and paving waterproof roll are arranged on predetermined ground, pour and smash reinforced concrete foundation
(mainly including the basis of pile foundation, isolated footing, strip footing or other forms).Need the above process that can adjust according to construction
Its whole process；
Step 2: prefabricated panel is installed on the waterproof roll set, prefabricated panel, cast-in-situ reinforced concrete column and base
Plinth, which is indulged, waits the connection of cast-in-place concrete node and the construction of cast-in-situ concrete columns after muscle is mechanically connected using casing, overlap bottom
Plate transverse and longitudinal section can be made " ~ "," transversal I ",Form or other forms, prefabricated panel vertically and horizontally side
Side steel bar stress is mechanically connected using sleeve.Prefabricated bottom is filled by the in due course grouting concrete of the hole being reserved on prefabricated panel
The space of plate lower recess, finally the cast-in-place concrete bottom plate overlapping layers (being specifically shown in attached drawing 1) above prefabricated panel.
Step 3: the connection of basement outer edge prefabricated panel and precast facade.Basement outer edge prefabricated panel section
It is madeForm, outer wall of basement form of fracture can be " I ", " ︱ ", " [" "] " or other forms.The prefabricated bottom of outer edge
Plate and precast facade, which will pass through slip casting sleeve, to carry out high-pressure slip-casting (being specifically shown in attached drawing 2) again after stress main reinforcement mechanical connection.Underground
Room meets the needs of construction period stability against floating, considers the reserving hole on precast facade metope, the hole on precast facade metope
Hole can link up inside and outside connection basement hydraulic equilibrium to meet the requirement of construction period stability against floating, then complete precast facade it
Between connection (being specifically shown in attached drawing 3) with cast-in-situ concrete columns, it is last that complete precast facade side cast-in-place concrete exterior wall in due course folded
Close layer；
Step 4: the prefabricated top plate beam of connection basement and cast-in-situ concrete columns, detailed process is with reference on assembled integral
The connection type of portion's structure；
Step 5: the connection of the connection prefabricated top plate of basement and prefabricated top plate beam, detailed process refer to assembled integral
The connection type of superstructure；
When there are multi-storey basement, it is repeatedly performed the connection of above-mentioned prefabricated components and the overlapping layers of cast-in-place concrete in due course,
According to construction need can appropriate adjustment structure connection sequencing.The one of the plate faces of above-mentioned prefabricated components, metope or precast beam
Side should reserve overlapping reinforcing bar facilitate lifting transport and make prefabricated panel, precast facade or precast beam and rear pouring concrete overlapping layers it
Between connect firm cooperative bearing.
Technical solution provided in an embodiment of the present invention has the benefit that
To solve formula basement of building attached at present using the longer curing time of monolithic reinforced concrete structure needs, construction time
Between face many engineering roadblocks such as underground structure stability against floating, the requirements such as water proof anti-seepage propose a kind of dress during basement use
With monoblock type basement fast and safe construction method.
Relative to cast-in-situ steel reinforced concrete integral basement structure, a kind of assembled integral basement structure of the present invention have with
Lower advantage: 1. prefabricated components are produced in batches in PC factory, high-efficient, quality is guaranteed；2. a large amount of construction templates are saved at scene；
3. reducing labour, cross-operation is convenient, accelerates construction progress, construction is not affected by the weather；4. installation accuracy is high, matter of constructing
It measures guaranteed；5. energy-saving and emission-reduction, reducing environmental pollution 6. can significantly save the cost when basement is larger；6. prefabricated structure
When part (prefabricated panel and precast facade) produces on plate (or wall) face reserving hole, it is anti-to meet construction period basement structure
Floating stability requirement；7. prefabricated components be installed after in one side cast-in-place concrete overlapping layers, therefore underground structure have it is good
Globality, bearing capacity characteristics, anti-seismic performance and meet operation use during waterproof impervious characteristic.
The present invention can be saved during assembled integral basement construction by the rapid construction of prefabricated components big
Fund shortens the construction period, while can also pass through the reserving hole ditch communications and liaison in prefabricated panel plate face and on precast facade metope
It is that hydraulic equilibrium is and in due course existing to meet the basement structure stability against floating requirement under extreme case inside and outside construction period basement
The overlapping layers of prefabricated panel and precast facade is poured with water proof anti-seepage requirement during meeting basement use.Therefore the present invention is a kind of
It is worthy to be popularized, the extensive basement fast and safe construction method of application prospect.
The foregoing is merely a prefered embodiment of the invention, is not intended to limit the invention, all in the spirit and principles in the present invention
Within, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810996404.9A CN109137972A (en) | 2018-08-29 | 2018-08-29 | A kind of assembled integral basement structure and its safely and fast construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810996404.9A CN109137972A (en) | 2018-08-29 | 2018-08-29 | A kind of assembled integral basement structure and its safely and fast construction method |
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| CN114687377A (en) * | 2020-12-30 | 2022-07-01 | 上海建工二建集团有限公司 | Large-bottom-plate modular structure under time-limited condition and construction method |
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| CN114687377A (en) * | 2020-12-30 | 2022-07-01 | 上海建工二建集团有限公司 | Large-bottom-plate modular structure under time-limited condition and construction method |
| CN114687377B (en) * | 2020-12-30 | 2023-08-08 | 上海建工二建集团有限公司 | Large bottom plate modularized structure under time-limited condition and construction method |
| CN113062164A (en) * | 2021-03-05 | 2021-07-02 | 武汉理工大学 | Double-layer composite full-prefabricated assembly type pavement and construction method |
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Application publication date: 20190104 |