CN106168035A - The subassembly formula construction method of subassembly formula underground structure and underground structure - Google Patents
The subassembly formula construction method of subassembly formula underground structure and underground structure Download PDFInfo
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- CN106168035A CN106168035A CN201610682960.XA CN201610682960A CN106168035A CN 106168035 A CN106168035 A CN 106168035A CN 201610682960 A CN201610682960 A CN 201610682960A CN 106168035 A CN106168035 A CN 106168035A
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- top board
- wall
- laminate
- prefabricated component
- underground structure
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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
-
- 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
- E02D29/04—Making large underground spaces, e.g. for underground plants, e.g. stations of underground railways; Construction or layout thereof
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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
- E02D29/10—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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- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Chemical & Material Sciences (AREA)
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The present invention provides a kind of subassembly formula underground structure, including top board, base plate, some girder constructions and underground connection wall；Top board includes that top board main body, top board main body include that top board prefabricated component and top plate concrete support, and top board prefabricated component is superimposed on concrete and supports；The underground connection wall of every floor layer of subassembly formula underground structure is to going out to be provided with precast linings wall.Also provide for the subassembly formula construction method of a kind of underground structure.By said structure and method, it is provided that the underground structure of a kind of subassembly formula and the subassembly formula construction method of a kind of underground structure, a kind of prefabricated and cast-in-place underground structure combined and novel construction method.Various Urban Underground structure can be applicable to, such as basement in residence, cross tunnel, street, subway station etc..Have concurrently prefabricated assembled environmental protection, high-quality and high-efficiency and cast-in-place method construct flexibly, the waterproof advantage such as preferably, there is good economy and wide applicability.
Description
Technical field
The present invention relates to the technical field of underground structure, particularly to subassembly formula underground structure and the office of underground structure
Portion's assembly construction method.
Background technology
Expressway around city development now, urban ground insufficient space, the application of urban underground space is the most aobvious important.Underground structure
Construction method has cut and cover method, subsurface excavation method and shield method etc., and except shield method uses prefabricated pipe section assembled, additionally both of which is adopted
It is main traditional mode of production mode with site operation.This mode of production industrialization degree is the highest；Design-build is more extensive, product
Quality is unstable；Construction efficiency is low, long construction period；Field workforce demand is big；Material, resource and energy resource consumption are bigger；
Building waste amount is big, and construction environment is poor, and on-the-spot dust pollution is big.In a word, it is impossible to meet holding of high-quality, efficient, energy-saving and environmental protection
Supervention exhibition construction requirements.
Fully-prefabricated assembled building has the advantages such as construction speed is fast, climate conditionality is little, saving labour force, in recent years
The most extensively to be applied to all kinds of public building and civil buildings.By in prefabricated assembled technology application underground structure, energy is big
Big reduce the on-the-spot engineering time, reduce site operation personnel, reduce Site Template amount, can be by material and energy consumption at precasting yard
Middle centralized management, can control while reaching quality, time and cost.But, underground structure due to narrow and small by construction space, ground
Lower water infiltrates etc. and to limit, and fully-prefabricated assembled is not necessarily suitable for underground structure.And blindly pursue high prefabricated rate and may produce
The problems such as the excessive lifting of construction weight node interface difficult, prefabricated is too many, para-position is difficult, cause duration growth, cost to increase, execute
Work Quality Down.
Summary of the invention
The invention aims to overcome the deficiencies in the prior art, it is provided that a kind of subassembly formula underground structure, it can be held concurrently
Turn round and look at cast-in-place structural and the advantage of full fabricated construction, be conducive to quality and the efficiency of construction.
The present invention also provides for the subassembly formula construction method of a kind of underground structure.
In order to achieve the above object, the present invention is by the following technical solutions:
A kind of subassembly formula underground structure, including top board, base plate, some girder constructions and underground connection wall；Described top board
Including top board main body, described top board main body includes that top board prefabricated component and top plate concrete support, and described top board prefabricated component is superimposed on described
On concrete supports；The underground connection wall of every floor layer of described subassembly formula underground structure is to going out to be provided with precast linings wall.
As preferably, between described precast linings wall and described underground connection wall, it is provided with cast-in-situ wall；Described underground is continuous
Wall is provided with shearing resistance groove, shearing resistance muscle and reinforcing bar connector.
As preferably, also including the laminate of floor for separating underground structure, described laminate includes laminate main body, described
Laminate main body includes that laminate prefabricated component and laminate concrete support.
As preferably, described top plate concrete supports and is supported for prefabricated components with described laminate concrete.
As preferably, described girder construction is prestressing force prefabricated components；Described prestressing force prefabricated components are for having hollow lumen
Or the prefabricated components of structure inner chamber with ribbing, described hollow lumen and described structure inner chamber with ribbing are filled with backfill light-weight water-proof material
Material；
Described top board prefabricated component and described laminate prefabricated component are prestressing force prefabricated plates；Described prestressing force prefabricated plates is tool
Hollow lumen or the prefabricated component of structure inner chamber with ribbing, described hollow lumen and described structure inner chamber with ribbing is had to be filled with backfill lightweight
Waterproof material.
As preferably, being provided with in-situ layer on described top board prefabricated component, described top board prefabricated component sets in described in-situ layer
There is the steel bundle by post-tensioned construction.
As preferably, also include for the central post as midfoot support post；
Described top board also includes being located at the Guan Liang at diaphram wall top, being located at the top longeron at central post top；Described top
The edge of plate main body is connected with Guan Liang, and top longeron runs through is located at top board main body；
Described base plate includes cast-in-place plate body and is located at the bottom girder of central post bottom, and the edge of cast-in-place plate body is continuous with underground
Wall connects, and bottom girder runs through is located at cast-in-place plate body.
As preferably, also include for the central post as midfoot support post；
Described top board also includes being located at the Guan Liang at diaphram wall top, being located at the top longeron at central post top；Described top
The edge of plate main body is connected with Guan Liang, and top longeron runs through is located at top board main body；
Described laminate includes the concrete waist rail being located on diaphram wall, the middle longeron being located on central post；Described laminate master
The edge of body is connected with concrete waist rail, and middle longeron runs through is located at laminate main body；
Described base plate includes cast-in-place plate body and is located at the bottom girder of central post bottom, and the edge of cast-in-place plate body is continuous with underground
Wall connects, and bottom girder runs through is located at cast-in-place plate body.
As preferably, described base plate is cast-in-place base plate or full precast construction base plate or in-situ deposited prefabricated overlapping base plate.
As preferably, the vertical of described precast linings wall connects and seam crossing connected horizontally use prestressed high-strength bolt
Attachment structure.
As preferably, described top board prefabricated component, described laminate prefabricated component and described precast linings wall are all provided with have and determine
The sensing transmitter of bit function；Described base plate is full precast construction base plate or in-situ deposited prefabricated overlapping base plate, and described base plate is provided with tool
There is the sensing transmitter of positioning function.
The subassembly formula construction method of a kind of underground structure, comprises the following steps:
S1, to be excavated to diaphram wall top mark high, applies diaphram wall；
S2, apply Guan Liang and top plate concrete and support；
S3, apply cast-in-place base plate or prefabricated panel；
S4, on the diaphram wall of the negative one layer of underground structure lift precast linings wall；
S5, described top plate concrete support on lift top board prefabricated component and fix top board prefabricated component；
S6, applying top board in-situ layer and waterproof layer on described top board prefabricated component, described waterproof layer is positioned at described top board
On in-situ layer；
S7, on described waterproof layer backfill earthing.
As preferably, between step S2 and step S3, further comprising the steps of: to be excavated to bottom the support of laminate concrete mark
Height, applies concrete waist rail, middle longeron and laminate concrete and supports；If described underground structure has N shell floor, heavy from top to bottom in stratum
Apply (N-2) deuterzooid step again；
Between step S3 and step S4, further comprising the steps of:
Lift the precast linings wall of this floor；
When N is more than 2,
It it is the first floor layer of underground structure between the laminate concrete support that twice are longitudinally adjacent；Carry out every floor layer from lower to upper
Prefabricated component assembling construction；The assembling construction of described prefabricated component comprises the following steps:
S1, be positioned at floor lower section concrete support on lift laminate prefabricated component and fix described laminate prefabricated component；
S2, the precast linings wall of lifting floor；
S3 lifts laminate prefabricated component fixing described laminate prefabricated component on the laminate concrete that absolute altitude is the highest supports；
When N is equal to 2, on the laminate concrete that absolute altitude is the highest supports, lifts laminate prefabricated component and fixing described laminate is prefabricated
Part.
As preferably, in step s2, it is additionally included between described precast linings wall and described diaphram wall and pours formation
Concrete wall.
Compared with prior art, the method have the advantages that
By said structure and method, it is provided that the underground structure of a kind of subassembly formula and the local dress of a kind of underground structure
Join formula construction method, a kind of prefabricated and cast-in-place underground structure combined and novel construction method.Various city can be applicable to
Underground structure, such as basement in residence, crosses tunnel, street, subway station etc..Have prefabricated assembled environmental protection, high-quality and high-efficiency concurrently and show
Method of watering constructs flexibly, the waterproof advantage such as preferably, has good economy and wide applicability.And prefabricated Yu cast-in-place overlapping
In wall form, by the foundation ditch diaphragm wall structure of underground structure as permanent structure, duration and engineering cost can be reduced further, tool
There is good economic benefit.
Accompanying drawing explanation
Fig. 1 is that (precast linings wall is with underground even for subassembly formula double-layer double-span underground structure schematic diagram of the present invention
Not pour concrete between continuous wall)；
Fig. 2 is that (precast linings wall is with underground even for subassembly formula double-layer double-span underground structure schematic diagram of the present invention
Pour concrete between continuous wall)
Fig. 3 is the partial structurtes schematic diagram of subassembly formula double-layer double-span underground structure of the present invention；
Fig. 4 is the structural representation of subassembly formula monolayer single span underground structure of the present invention.
In figure:
11 top plate concretes support；12 top board prefabricated components；13 top longerons；14 in-situ layers；2 Guan Liang；3 undergrounds are even
Continuous wall；31 shearing resistance grooves；41 concrete waist rails；42 laminate concretes support；43 laminate prefabricated components；Longeron in 44；51 is prefabricated
Inwall；52 cast-in-situ walls；61 bottom girders；62 base plates；71 stand column pile bases；72 central posts；8 steel bundles.
In conjunction with accompanying drawing, the invention will be further described with specific embodiment.
Detailed description of the invention
A kind of subassembly formula underground structure that the present invention is the most described, including top board, base plate 62, some girder constructions and underground
Connection wall.Top board includes that top board main body, top board main body include that top board prefabricated component 12 and top plate concrete support 11；Every layer of underground structure
The underground connection wall of floor is to going out to be provided with precast linings wall 51.It is provided with cast-in-situ wall between precast linings wall 51 and underground connection wall
52.Also including the laminate for descending structural floor separatedly, laminate includes that laminate main body, laminate main body include laminate prefabricated component 43
And laminate concrete supports 42.Base plate 62 can be cast-in-place base plate or full precast construction base plate or in-situ deposited prefabricated overlapping base plate.
Top board prefabricated component 12 and laminate prefabricated component 43 are prestressing force prefabricated plates；Prestressing force prefabricated plates is hollow interior for having
Chamber or the prefabricated component of structure inner chamber with ribbing, hollow lumen and structure inner chamber with ribbing are filled with backfill light waterproof material；Described top
The steel bundle 8 using post-tensioned construction it is additionally provided with in plate prefabricated component 12 and described in-situ layer 14.
It is that flower-basket type concrete supports that top plate concrete support 11, laminate concrete support 42, as preferably, is all prefabricated components.
Girder construction is prestressing force prefabricated components；Prestressing force prefabricated components are have hollow lumen or structure inner chamber with ribbing pre-
Component processed, hollow lumen and structure inner chamber with ribbing are filled with backfill light waterproof material.Precast linings wall 51 vertical connect and
Seam crossing connected horizontally uses prestressed high-strength bolt fastening structure.
In order to allow top board prefabricated component 12, laminate prefabricated component 43 and precast linings wall 51 and when base plate 62 is full precast construction
When base plate or in-situ deposited prefabricated overlapping base plate, these prefabricated component Hoisting Positions are accurate, by top board prefabricated component 12, laminate prefabricated component
43, precast linings wall 51 and base plate 62 are all provided with the sensing transmitter with positioning function, it is possible to assist each prefabricated component along setting
Fixed pattern is assembled, by the positional information immediate feedback of prefabricated component to lifting machine, to revise error during lifting.
Embodiment 1
Show refering to Fig. 1, a kind of subassembly formula underground structure of the present invention, including:
As the diaphram wall 3 of enclosure wall of underground structure, the central post 72 that is arranged in underground structure.In order to improve
The structural strength of diaphram wall 3, is provided with shearing resistance groove 31, shearing resistance muscle and reinforcing bar connector in diaphram wall 3.
Top board, top board includes top board main body, the hat beam 2 being located at diaphram wall 3 top, is located at the top of central post 72
Top longeron 13.Top board main body includes that flower-basket type concrete supports, is stacked the top board prefabricated component 12 being located on the support of flower-basket type concrete.Top board
The edge of main body is connected with hat beam 2, and top longeron 13 runs through is located at top board main body.
Base plate 62, base plate 62 includes cast-in-place plate body and is located at the bottom girder 61 of central post 72 bottom, the edge of cast-in-place plate body
Being connected with diaphram wall 3, bottom girder 61 runs through is located at cast-in-place plate body.
Being additionally provided with in-situ layer 14 and waterproof layer on top board, waterproof layer is positioned on in-situ layer 14.Top board prefabricated component is with existing
The steel bundle by post-tensioned construction it is provided with in watering layer.
Be the space of underground structure between top board and base plate, the diaphram wall 3 in this spatial dimension to the position gone out
It is provided with precast linings wall 51.
The structure for the present embodiment shown in Fig. 1 is applied to subway station.
Embodiment 2
Refering to Fig. 2, the present embodiment is to increase following structure in the content of embodiment 1:
Cast-in-situ wall 52 it is provided with between precast linings wall 51 and diaphram wall 3.
Being provided with the steel bundle 8 using post-tensioned construction in cast-in-situ wall 52 and precast linings wall 51, the material of steel bundle 8 is low pine
Relaxation high-strength prestress steel strand wires.It is provided with prestressed pipe in cast-in-situ wall 52.
Embodiment 3
Refering to shown in Fig. 1 and Fig. 2, a kind of subassembly formula underground structure of the present invention, including:
As the diaphram wall 3 of enclosure wall of underground structure, the central post 72 that is arranged in underground structure.In order to improve
The structural strength of diaphram wall 3, is provided with shearing resistance groove 31, shearing resistance muscle and reinforcing bar connector in diaphram wall 3.
Top board, top board includes top board main body, the hat beam 2 being located at diaphram wall 3 top, is located at the top of central post 72
Top longeron 13.Top board main body includes that flower-basket type concrete supports, is stacked the top board prefabricated component 12 being located on the support of flower-basket type concrete.Top board
The edge of main body is connected with hat beam 2, and top longeron 13 runs through is located at top board main body.
Laminate, laminate includes laminate main body, the concrete waist rail 41 be located on diaphram wall 3, be located on central post 72
Longeron 44.Laminate main body includes that gaily decorated basket type concrete supports, is stacked the laminate prefabricated component 43 being located on the support of flower-basket type concrete.Laminate master
The edge of body is connected with concrete waist rail 41, and middle longeron 44 runs through is located at laminate main body.
Base plate 62, base plate 62 includes cast-in-place plate body and is located at the bottom girder 61 of central post 72 bottom, the edge of cast-in-place plate body
Being connected with diaphram wall 3, bottom girder 61 runs through is located at cast-in-place plate body.
Being additionally provided with in-situ layer 14 and waterproof layer on top board, described waterproof layer is positioned on in-situ layer 14.Top board prefabricated component
With the steel bundle being provided with in in-situ layer by post-tensioned construction.
Between top board and laminate, between laminate and laminate, it is all the first floor layer of underground structure between laminate and base plate, often
Diaphram wall 3 in the range of floor layer the position gone out is provided with precast linings wall 51.
In figure, underground structure is the underground structure of two-layer, so plate the most from level to level, if N shell underground structure, then arranges
(N-1) plate layer by layer.
The structure for the present embodiment shown in Fig. 1 is applied to subway station.
Embodiment 4
Refering to Fig. 2, the present embodiment is to increase following structure in the content of embodiment 2:
Cast-in-situ wall 52 it is provided with between precast linings wall 51 and diaphram wall 3.
Being provided with the steel bundle 8 using post-tensioned construction in cast-in-situ wall 52 and precast linings wall 51, the material of steel bundle 8 is low pine
Relaxation high-strength prestress steel strand wires.It is provided with prestressed pipe in cast-in-situ wall 52.
Embodiment 5
Showing refering to Fig. 4, a kind of subassembly formula underground structure of the present invention is applied to monolayer single span formula structure, bag
Include:
Diaphram wall 3 as the enclosure wall of underground structure.In order to improve the structural strength of diaphram wall 3, underground
Diaphragm wall 3 is provided with shearing resistance groove 31, shearing resistance muscle and reinforcing bar connector.
Top board, top board includes top board main body, concrete waist rail 41.Top board main body includes that flower-basket type concrete supports, is stacked and is located at the gaily decorated basket
Top board prefabricated component 12 on the support of shape concrete.The edge of top board main body is connected with concrete waist rail 41.
Base plate 62, base plate 62 includes that cast-in-place plate body, the edge of cast-in-place plate body are connected with diaphram wall 3.
Be the space of underground structure between top board and base plate, the diaphram wall 3 in this spatial dimension to the position gone out
It is provided with precast linings wall 51.
The present invention provides the subassembly formula construction method of a kind of underground structure, is below the construction of monolayer single span formula structure
Step:
S1, to be excavated to diaphram wall 3 top mark high, applies diaphram wall 3；
In order to improve the structural strength of diaphram wall 3, diaphram wall 3 is preset shearing resistance groove 31, shearing resistance muscle and steel
Muscle connector.Specifically: when the fabrication of reinforcing cage of diaphram wall 3, shearing resistance muscle, reinforcing bar connector are fixed on steel reinforcement cage
On, make therewith, then hang in diaphram wall 3 groove section, then placing concrete.
S2, pour hat beam 2, top longeron 13 and top board flower-basket type concrete support；
S3, apply base plate 62；Base plate 62 can be cast-in-place base plate or full precast construction base plate or in-situ deposited prefabricated overlapping base plate.Tool
Body ground: S31, it is excavated to the elevation of bottom of base plate 62；
S32, apply the bed course bottom base plate 62 and waterproof construction；
S33, the longeron applying base plate 62 and plate body；
S4, at the hoisting prefabricated inwall of negative one layer 51；Described negative one layer refers to support using top board flower-basket type concrete push up as it
The floor that face concrete supports.
S5, described top board flower-basket type concrete support on lift top board prefabricated component 12 and fix top board prefabricated component 12；
S6, applying top board in-situ layer 14 and waterproof layer on described top board prefabricated component 12, described waterproof layer is positioned at described
On top board in-situ layer 14；As preferably, this step also includes the in-situ layer applying the side wall top of longeron, underground structure
14, and apply waterproof layer above described in-situ layer 14.
S7, on described waterproof layer backfill earthing.
If underground structure is single-layer multiple-span formula structure,
Also including in step S1: apply central post 72 and stand column pile basis 71, column uses steel pipe central post 72 or prefabricated
Concrete column.
If underground structure is multilamellar many straddle types structure,
Between step S2 and step S3, further comprising the steps of: to be excavated to laminate flower-basket type concrete and support elevation of bottom, water
Note concrete waist rail 41, middle longeron 44 and laminate flower-basket type concrete support；If described underground structure has N shell floor, in stratum from toward
Repeating to apply (N-2) deuterzooid step, N is more than or equal to 2 lowerly.
Between step S3 and step S4, further comprising the steps of:
Precast linings wall 51 is lifted at the floor with base plate 62 as ground；
When N is more than 2,
It it is the first floor layer of underground structure between the laminate flower-basket type concrete support that twice are longitudinally adjacent；Carry out every from lower to upper
The prefabricated component assembling construction of floor layer；The assembling construction of described prefabricated component comprises the following steps:
S1, be positioned at floor lower section concrete support on lift laminate prefabricated component 43 and fix described laminate prefabricated component
43；
S2, floor lift precast linings wall 51；
Laminate prefabricated component 43 fixing described laminate prefabricated component is lifted on the laminate flower-basket type concrete that absolute altitude is the highest supports
43；
When N is equal to 2, on the laminate flower-basket type concrete that absolute altitude is the highest supports, lift laminate prefabricated component 43 fixing described layer
Plate prefabricated component 43.
Top board prefabricated component 12 and laminate prefabricated component 43 use wet type cast-in-place node to be connected with other component or the weldering of steel node bolt
Connect.
If underground structure is in the pervious bed in stratum, for strengthening the waterproof ability of the side wall of underground structure, make underground
The side wall of structure becomes double-wall construction, specifically: pour concrete between described precast linings wall 51 and described diaphram wall 3
Wall, forms overlapping wall construction.As preferably, precast linings wall 51 is provided with the steel bundle 8 using post-tensioned construction, concrete wall within the walls with concrete
Inside it is provided with prestressed pipe；The material of described steel bundle 8 is underrelaxation high-strength prestress steel strand wires.
In above-mentioned form of construction work, concrete supports and top board prefabricated component 12, and concrete supports and laminate prefabricated component 43, all distinguishes shape for two kinds
Become superimposed sheet part, as permanent structure plate.And alternatively, it is also possible to concrete is supported dismounting, only stays laminate prefabricated component
43 and top board prefabricated component 12 as structural slab.
In structure involved by above-mentioned form of construction work, as preferably: laminate prefabricated component 43 and top board prefabricated component 12 are prestressing force
Prefabricated plates；Prestressing force prefabricated plates is to have hollow lumen or the prefabricated component of structure inner chamber with ribbing, hollow lumen and knot with ribbing
Structure lumen loading has backfill light waterproof material.Described top board prefabricated component 12 uses post-tensioned construction steel in described in-situ layer 14
Bundle 8.The longeron of hat beam 2, top longeron 13, concrete waist rail 41, middle longeron 44 and base plate 62 is prestressing force prefabricated components, and prestressing force is prefabricated
Component is to have hollow lumen or the prefabricated component of structure inner chamber with ribbing, hollow lumen and structure inner chamber with ribbing to be filled with backfill lightweight
Waterproof material.Top board flower-basket type concrete supports, middle level flower-basket type concrete is supported for prefabricated components.
In order to make the Hoisting Position of top board prefabricated component 12, laminate prefabricated component 43 and precast linings wall 51 accurate, by top board
Prefabricated component 12, laminate prefabricated component 43 and precast linings wall 51 are all provided with the sensing transmitter with positioning function, it is possible to auxiliary
Mounting structure is assembled along the pattern set, by the positional information immediate feedback of prefabricated component to lifting machine, to revise when lifting
Error.
On prefabricated components adjacent surface (between precast linings wall 51), (hat beam 2 and top board on the interface of new and old site concrete
In-situ layer 14), or (top board preformed layer 12 supports 11 with hat beam 2, top plate concrete) cloth on prefabricated components and site concrete adjacent surface
Putting waterproofing elements, arrange one, two roads even multi layer waterproof element, waterproof material selects adhesive waterproof coil, water-swellable rubber
Glue sealing rod, polysulfide sealant, steel plate for sealing water, capillary crystalline waterproof coating material etc., stiffener seam waterproof performance, solve structure
Operation security and the key technical problem of durability.
Top board prefabricated component 12 described in literary composition, laminate prefabricated component 43 and the production method of precast linings wall 51: in precast plant
In, first make the reinforcing bar part of prefabricated component and the pre-buried component for lifting, position, connecting, complete with after-pouring prefabricated.And it is civilian
Described in the component of job site cast, the most first first make reinforcing bar and bearing rod thereof in precast plant, and pre-buried for lifting,
Location, the component connected, form framework, have only to be located at framework precalculated position, cast in situs at the scene.
In literary composition, flower-basket type concrete supports the beam referring to that two brackets are stretched out in bottom, can shelve fixing prefabricated plates.
In literary composition, the side wall of underground structure refers to, the body of wall that precast linings wall 51 and diaphram wall 3 are formed, and overlapping wall
During structure, precast linings wall 51, diaphram wall 3 and between the two pour the body of wall that part is formed.
In literary composition, the vertical of precast linings wall 51 connects and seam crossing connected horizontally use prestressed high-strength bolted-on attachment
Structure.As preferably, the pre-buried prestress pipe of precast linings wall 51.
Embodiment 6
Refering to shown in Fig. 1 and Fig. 2, the subassembly formula construction method of underground structure of the present invention is applied to subway
Stand construction time, comprise the steps:
S1, to be excavated to diaphram wall 3 top mark high, pours diaphram wall 3, steel pipe central post 72 and stand column pile basis
71；
S2, pour hat beam 2, top longeron 13 and top board flower-basket type concrete support；
S3, be excavated to second flower-basket type concrete support elevation of bottom, pour concrete waist rail 41, middle longeron 44 and the second gaily decorated basket
Shape concrete supports；
S4, it is excavated to the elevation of bottom of base plate 62；
S5, apply the bed course bottom base plate and waterproof construction；
S6, the longeron pouring base plate 62 and plate body；
It is negative two layers of subway station between the support of S7, described second flower-basket type concrete and described base plate 62, lifting negative two
The precast linings wall 51 of layer.
S8, on concrete waist rail 41, middle longeron 44 and second flower-basket type concrete support, lifting laminate prefabricated component 43 by institute
State laminate prefabricated component 43 to fix；
It is the negative one layer of subway station between the support of S9, described second flower-basket type concrete and described top board, lifts negative one layer
Precast linings wall 51；
S10, on hat beam 2, top longeron 13 and top board flower-basket type concrete support, lifting top board prefabricated component 12 by described top
Plate prefabricated component 12 is fixed；
S11, applying top board in-situ layer 14 and waterproof layer on described top board prefabricated component 12, described waterproof layer is positioned at described
On top board in-situ layer 14；
S12, on described waterproof layer backfill earthing；
S13, apply internal structure.
Embodiment 7
On the basis of the method for embodiment 2, increase following steps:
Between step S7 and step S8, further comprising the steps of, on precast linings wall 51 and the ground of negative two layers (B in figure)
Pour concrete between lower diaphragm wall 3, form overlapping wall construction.
Between step S9 and step S10, further comprising the steps of, negative one layer (A in figure) precast linings wall 51 with
Pour concrete between diaphram wall 3, form overlapping wall construction.
In the present invention:
1, using prefabricated component when top board, middle plate, base plate, make prefabricated component support stacked board structure with concrete, this scheme ratio is existing
Water and directly pour into a mould top board, middle plate can reduce the on-the-spot operation such as reinforcing bar binding and casting concrete, shortens the construction period, and it is right to reduce
The impact of surrounding enviroment, factory-made component ensure that higher quality.When using superimposed sheet, than full precoated plate weight more
Gently, node construction is convenient, water resistance is more excellent in connection.
2, in the present invention, diaphram wall 3 also serves as a underground structure part, and i.e. diaphram wall 3 is as permanent stress
Structure, it is possible to reduce side wall sectional dimension and the arrangement of reinforcement of underground structure, thus save engineering time and quantities.In N shell n straddle type
In structure (N is not 1), using concrete support, hat beam 2 and waist rail as a part for plate, prefabricated component is overlapped therewith, convenient scene peace
Dress construction, improves efficiency of construction.And the space contradiction efficiently solving prefabricated part hanging and go along with sb. to guard him support system.
3, beam, board member use prestressing force, can avoid at construction stage component premature rupture, offset the portion in work progress
Divide unfavorable moment of flexure, beneficially controlling sections fracture width, advantageously reduce sectional reinforcement or reduce section thickness size, thus subtracting
Light prefabricated part hanging weight.Added compressive pre-stress by remaining simultaneously, raising concrete structure durability and water resistance are had preferably
Effect.At precast linings wall junction Shi Hanzhang bolt or tension steel strand, cross section, junction compressive stress can be increased, full
The requirement of foot seam waterproof.
4, the prefabricated components such as top board prefabricated component 12, laminate prefabricated component use steel structure node to pass through bolt-weld joint, with tradition
Grout sleeve connected mode compare, site operation is convenient, more can guarantee that connection effect, safety of structure can be increased.
The invention is not limited in above-mentioned embodiment, if various changes or modification to the present invention are without departing from the present invention
Spirit and scope, if these are changed and within the scope of modification belongs to claim and the equivalent technologies of the present invention, then this
Bright being also intended to comprises these changes and variation.
Claims (14)
1. a subassembly formula underground structure, it is characterised in that include top board, base plate, some girder constructions and underground connection wall；
Described top board includes that top board main body, described top board main body include that top board prefabricated component and top plate concrete support, and described top board prefabricated component is folded
It is combined in described concrete to support；The underground connection wall of every floor layer of described subassembly formula underground structure is to going out to be provided with precast linings
Wall.
Subassembly formula underground structure the most according to claim 1, it is characterised in that described precast linings wall with describedly
It is provided with cast-in-situ wall between lower connection wall；Described diaphram wall is provided with shearing resistance groove, shearing resistance muscle and reinforcing bar connector.
Subassembly formula underground structure the most according to claim 1 and 2, it is characterised in that also include under separatedly
The laminate of the floor of structure, described laminate includes that laminate main body, described laminate main body include that laminate prefabricated component and laminate concrete support.
Subassembly formula underground structure the most according to claim 3, it is characterised in that described top plate concrete supports and described layer
Plate concrete is supported for prefabricated components.
Subassembly formula underground structure the most according to claim 3, it is characterised in that
Described girder construction is prestressing force prefabricated components；Described prestressing force prefabricated components are for having hollow lumen or structure inner chamber with ribbing
Prefabricated components, described hollow lumen and described structure inner chamber with ribbing are filled with backfill light waterproof material；
Described top board prefabricated component and described laminate prefabricated component are prestressing force prefabricated plates；Described prestressing force prefabricated plates is for having sky
Chambers or the prefabricated component of structure inner chamber with ribbing, described hollow lumen and described structure inner chamber with ribbing are filled with backfill light-weight water-proof
Material.
Subassembly formula underground structure the most according to claim 1, it is characterised in that
It is provided with in-situ layer on described top board prefabricated component, is provided with in described top board prefabricated component and described in-situ layer and is executed by post stretching
The steel bundle of work.
Subassembly formula underground structure the most according to claim 1 and 2, it is characterised in that
Also include for the central post as midfoot support post；
Described top board also includes being located at the Guan Liang at diaphram wall top, being located at the top longeron at central post top；Described top board master
The edge of body is connected with Guan Liang, and top longeron runs through is located at top board main body；
Described base plate includes cast-in-place plate body and is located at the bottom girder of central post bottom, and the edge of cast-in-place plate body is with diaphram wall even
Connecing, bottom girder runs through is located at cast-in-place plate body.
Subassembly formula underground structure the most according to claim 3, it is characterised in that also include for as midfoot support
The central post of post；
Described top board also includes being located at the Guan Liang at diaphram wall top, being located at the top longeron at central post top；Described top board master
The edge of body is connected with Guan Liang, and top longeron runs through is located at top board main body；
Described laminate includes the concrete waist rail being located on diaphram wall, the middle longeron being located on central post；Described laminate main body
Edge is connected with concrete waist rail, and middle longeron runs through is located at laminate main body；
Described base plate includes cast-in-place plate body and is located at the bottom girder of central post bottom, and the edge of cast-in-place plate body is with diaphram wall even
Connecing, bottom girder runs through is located at cast-in-place plate body.
Subassembly formula underground structure the most according to claim 1 and 2, it is characterised in that
Described base plate is cast-in-place base plate or full precast construction base plate or in-situ deposited prefabricated overlapping base plate.
Subassembly formula underground structure the most according to claim 1 and 2, it is characterised in that erecting of described precast linings wall
To connecting and seam crossing connected horizontally use prestressed high-strength bolt fastening structure.
11. subassembly formula underground structures according to claim 3, it is characterised in that described top board prefabricated component, described layer
Plate prefabricated component and described precast linings wall are all provided with the sensing transmitter with positioning function；Described base plate is full precast construction
Base plate or in-situ deposited prefabricated overlapping base plate, described base plate is provided with the sensing transmitter with positioning function.
The subassembly formula construction method of 12. 1 kinds of underground structures, comprises the following steps:
S1, to be excavated to diaphram wall top mark high, applies diaphram wall；
S2, apply Guan Liang and top plate concrete and support；
S3, apply cast-in-place base plate or prefabricated panel；
S4, on the diaphram wall of the negative one layer of underground structure lift precast linings wall；
S5, described top plate concrete support on lift top board prefabricated component and fix top board prefabricated component；
S6, applying top board in-situ layer and waterproof layer on described top board prefabricated component, it is cast-in-place that described waterproof layer is positioned at described top board
On Ceng；
S7, on described waterproof layer backfill earthing.
The subassembly formula construction method of 13. underground structures according to claim 12, it is characterised in that
Between step S2 and step S3, further comprising the steps of: be excavated to laminate concrete support elevation of bottom, apply concrete waist rail,
Middle longeron and laminate concrete support；If described underground structure has N shell floor, in stratum, repeat to apply (N-2) from top to bottom secondary
This step；
Between step S3 and step S4, further comprising the steps of:
Lift the precast linings wall of this floor；
When N is more than 2,
It it is the first floor layer of underground structure between the laminate concrete support that twice are longitudinally adjacent；Carry out the pre-of every floor layer from lower to upper
Product assembling construction；The assembling construction of described prefabricated component comprises the following steps:
S1, be positioned at floor lower section concrete support on lift laminate prefabricated component and fix described laminate prefabricated component；
S2, the precast linings wall of lifting floor；
S3 lifts laminate prefabricated component fixing described laminate prefabricated component on the laminate concrete that absolute altitude is the highest supports；
When N is equal to 2, on the laminate concrete that absolute altitude is the highest supports, lift laminate prefabricated component fixing described laminate prefabricated component.
The subassembly formula construction method of 14. underground structures according to claim 12, it is characterised in that
In step s2, it is additionally included between described precast linings wall and described diaphram wall and pours formation concrete wall.
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| CN113047863A (en) * | 2021-04-06 | 2021-06-29 | 深圳市市政设计研究院有限公司 | Mechanized underground excavation assembly type subway station and construction method thereof |
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