CN106193120B - Basement is encorbelmented, and bottom plate is inverse to make structure and construction method - Google Patents
Basement is encorbelmented, and bottom plate is inverse to make structure and construction method Download PDFInfo
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- CN106193120B CN106193120B CN201610739666.8A CN201610739666A CN106193120B CN 106193120 B CN106193120 B CN 106193120B CN 201610739666 A CN201610739666 A CN 201610739666A CN 106193120 B CN106193120 B CN 106193120B
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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
- E02D29/05—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 at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench
- E02D29/055—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 at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench further excavation of the cross-section proceeding underneath an already installed part of the structure, e.g. the roof of a tunnel
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- General Engineering & Computer Science (AREA)
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
Being encorbelmented the present invention relates to a kind of basement, bottom plate is inverse to make structure, it is characterised in that including following structure：Sole plate, high-pressure rotary jet grouting pile, Prefabricated Concrete lateral retaining wall, high spray piling wall, deformation adjustment layer, predetermined level plate, joint strengthening steel plate, floor plates of encorbelmenting formwork system, under cast-in-place exterior wall single side formwork system etc..The present invention comprises the following steps：1) foundation excavation and pile foundation construction 2) cast-in-place external wall construction under cantilever part, 3) Cantilever Beams construction, 4) construction of deformation adjustment layer, 5) installation of predetermined level plate, 6) normal host construction is to top, and 7) construct after bottom plate of encorbelmenting.The present invention basement encorbelment bottom plate reversed construction method have the advantages that it is environment-friendly, easy for construction, cheap.
Description
Technical field
Being encorbelmented the present invention relates to a kind of basement, bottom plate is inverse to make structure, and larger structural portion is chosen suitable for outer wall of basement
Position construction, including basement integrally chooses or part protrudes the construction of the positions such as larger ventilation shaft, equipment raise.
Background technology
In recent years, with the fast development of China's building trade, cast-in-situ steel reinforced concrete cantilevered structure it is industrial with it is civilian
Using quite varied in building, by plan, the factor such as practical, attractive in appearance is influenceed and restriction, the modern times that are in picturesque disorder, showing characteristic especially
Architectural image makes pattern handling increasingly tend to complicate, and application of the cantilevered structure in engineering construction is also more and more wider therewith
It is general.How cantilevered structure is rationally set, it is ensured that the practical safety of structure, more and more cause everybody concern.Encorbelment balcony, verandah,
Cornice, rain cover etc. is structure type common in construction project.
" encorbelmenting " structure is very common in architectural engineering, deals with nor too complicated, but when " encorbelmenting " appears in ground
During lower portion, such as：One layer above basement outwards choose a part than following one layer or outer wall of basement protrude it is larger
Ventilation shaft, equipment raise situations such as, its difficulty of construction will than on the ground it is much more complex.Because at its underground position, it is related to
Basement waterproofing below cantilever part, backfill are closely knit, cantilever part bankets and main building basic synchronization settles influence to ground
Problem.
In summary, although existing basement is encorbelmented, construction of bottom plates method achieves good effect in construction
Fruit, but reply cantilever part span it is larger situation difficulty of construction it is bigger, while operability, structural strengthening, cost,
Efficiency of construction etc. still has improvable place.In consideration of it, need a kind of Stability Analysis of Structures of invention, easy for construction, warp badly at present
The excellent basement of Ji benefit is encorbelmented the construction method of bottom plate.Being encorbelmented using the basement of the present invention, bottom plate is inverse to be applied as structure
Work, easy for construction and cheap, most of part is reusable, has certain economic technology benefit.
The content of the invention
Being encorbelmented it is an object of the invention to provide a kind of basement, bottom plate is inverse to make structure, makes every effort to ensureing that overall structure meets
Optimizing construction technique, the effect of simplified construction process while code requirement, and there is outstanding economic benefit, improve engineering
Returns and efficiency.
To realize above-mentioned technical purpose, present invention employs following technical scheme：
Basement is encorbelmented, and bottom plate is inverse to make structure, sole plate, high-pressure rotary jet grouting pile, Prefabricated Concrete lateral retaining wall, high-pressure rotary-spray piling wall,
Deformation adjustment layer, predetermined level plate, floor plates of encorbelmenting formwork system and under cast-in-place exterior wall single side formwork system；Mark at blotter bottom
Eminence sets high-pressure rotary jet grouting pile and high-pressure rotary-spray piling wall, the pre-buried anti-float anchor rod of high-pressure rotary jet grouting pile stake top；High-pressure rotary-spray piling wall is set
Under at cast-in-place exterior wall, insertion Prefabricated Concrete lateral retaining wall, Prefabricated Concrete lateral retaining wall are provided with wall rib and tongue and groove before initial set；On blotter
Portion sets deformation adjustment layer, up and down bed course respectively on concrete underlayer and concrete, installation predetermined level plate at the top of bed course on concrete；It is prefabricated
Bar shaped notch is left in level board, and has overhanging reserved dowel, respectively with straight thread pre-buried in the wall body structure of both sides
Sleeve is connected；Joint strengthening upper steel plate is arranged in the middle part of predetermined level plate, and joint strengthening lower steel plate is arranged on bed course on concrete, anchor pole
Connecting plate is arranged at the top of predetermined level plate, and rubber support is provided with anchor pole connecting plate.
As preferred：Under cast-in-place exterior wall single side formwork system by adjustable frames, transverse connecting rod and oblique connecting rod group
Into.
Present invention also offers above-mentioned basement to encorbelment bottom plate against the construction method made, and comprises the following steps：
1) foundation excavation and pile foundation construction：Excavation of foundation pit is to blotter absolute altitude, high-pressure rotary jet grouting pile of constructing, high-pressure rotary jet grouting pile
In be provided with anti-float anchor rod, stretch out stake top certain altitude；High-pressure rotary-spray piling wall synchronous construction, position are arranged on down cast-in-place exterior wall
Locate, Prefabricated Concrete lateral retaining wall, Prefabricated Concrete lateral retaining wall band wall rib, tongue and groove are inserted before concrete initial set, and be embedded with screw rod branch sleeve；
2) cast-in-place external wall construction under cantilever part：After high-pressure rotary jet grouting pile, high-pressure rotary-spray piling wall reach design code intensity,
Excavation pit to foundation slab structure bottom absolute altitude, under cast-in-place exterior wall lateral surface along Prefabricated Concrete lateral retaining wall vertical cut, excavate rear side
Face is cleared up, and makes pre-buried screw rod branch sleeve exposing surface；Screw arbor with nut at both-ends is installed, single side formwork pours down cast-in-place exterior wall；Pour
Complete, carry out down the construction of waterproof layer of cast-in-place exterior wall, inner side is using spray film waterproof；
3) Cantilever Beams are constructed：When reserved cantilevered plate position reinforcing bar is reserved, the joint location of reinforcing bar, intermediate plate colligation are controlled
Shi Caiyong one end gas pressure welding, one end overlap welding connection；Cantilever Beams together carry out cantilever part beam concrete casting with agent structure
Construction；
4) deformation adjustment layer is constructed：Bottom board concrete underlayer of encorbelmenting first is poured, pea gravel concreten bed course is done on concrete underlayer,
Superficial compaction troweling, blotter is laid, then lays base plate waterproofing of encorbelmenting, the paving after blinding concrete conserves and dries
SBS coil waterproof layers, waterproof layer plate surrounding Liang Shangyu it is original it is ready-made on water layer of returning to stations overlap to Bars In Poured Concrete Slab bottom；Anti-
Polystyrene board protecting layer is laid on water layer, forms Combined changeable regulating course；
5) predetermined level plate is installed:After deformation adjustment layer is constructed, bed course on concrete is poured, is flattened, it is then hoisting prefabricated
Level board；Adjustment position, make anti-float anchor rod through the preformed hole on predetermined level plate；Under cast-in-place exterior wall side dowel it is cast-in-place with
Reserved steel bar links together on the outside of exterior wall；
6) top is arrived in normal host construction：Inner side of outer wall of encorbelmenting sets reserved dowel to be connected with predetermined level plate, building of encorbelmenting
Laminate formwork erection on predetermined level plate, after reinforcing bar colligation, form for seal one-piece casting to top；
7) encorbelment and construct after bottom plate：Predetermined level plate both sides are connected with the wall being first molded by reinforcing bar colligation respectively,
Embedding rubber water-proof bar, the reserved slab that arrangement, straightening, cleaning were originally constructed are filled out between pouring concrete plate and first pouring concrete beam afterwards
Muscle, and colligation, the concrete casting of design load is used after formwork.
The present invention has the characteristics of following and beneficial effect：
(1) structure construction stage cantilevered structure position beam, wall and other indoor portion structures are constructed by normal procedure, wait to lead
Bottom plate adverse construction method is poured after being encorbelmented after building foundation deformation settlement stability, malformation is stable.
(2) the deformation adjustment layer adjustment structure deformation combined using blotter and styrofoam, effectively solves underground
Room exterior wall chooses filling position sinking speed below structure if greater than building settlement speed, waterproof layer may be caused to depart from
Concrete slab, to the member stress situation shape at end of encorbelmenting if filling position sinking speed is if greater than building settlement speed
Into adverse effect problem.
(3) exterior wall of being encorbelmented under is inserted in high-pressure rotary-spray piling wall using Prefabricated Concrete lateral retaining wall with ribbing, and by wherein pre-buried
Straight screw sleeve connection template, realize single side formwork system, high construction efficiency, conveniently.
(4) encorbelment and three stratotype steel are set at bottom plate girder connection and extend certain length, strengthen node, while both sides exterior wall is equal
Overhanging dowel is reserved with, make to encorbelment bottom plate and both sides exterior wall are connected firmly, stably.
Brief description of the drawings
Fig. 1 is that basement of the present invention encorbelments that bottom plate is inverse to make structural representation.
Fig. 2 is drawing A；
Fig. 3 is A-A sectional drawings；
Fig. 4 is single side formwork system schematic diagram；
Fig. 5 is main structure construction figure；
Fig. 6 is present invention process flow chart；
In figure：1- sole plates, 2- pile foundations, 3- high-pressure rotary jet grouting piles, 4- anti-float anchor rods, cast-in-place exterior wall under 5-, encorbelment on 6-
Exterior wall, 7- encorbelment bottom plate, and 8- encorbelments floor plates, external wall waterproof layer under 9-, external wall waterproof layer of being encorbelmented on 10-, and 11- bottom plates of encorbelmenting are prevented
Water layer, 12- high-pressure rotary-spray piling walls, 13- Prefabricated Concrete lateral retaining walls, 14- wall ribs, 15- tongue and grooves, 16- screw rod branch sleeves, 17- is to drawing
Screw rod, exterior wall side form under 18-, 19- single side formwork systems, 20- shelve platform, the pre-buried straight screw sleeves of 21-, 22- backfills,
23- blotters, 24- concrete underlayers, 25- deformation adjustment layers, bed course on 26- concretes, 27- predetermined level plates, 28- bar shaped notches,
29- reserves dowel, 30- joint strengthening upper steel plates, 31- joint strengthening lower steel plates, 32- anchor pole connecting plates, 33- rubber supports,
34- sole plate absolute altitudes, 35- blotter absolute altitudes, 36- encorbelment floor plates formwork system, 37- screw rods, 38- adjustable frames,
39- transverse connecting rods, the oblique connecting rods of 40-
Embodiment
Present embodiment light plate welding technique, high-pressure rotary jet grouting pile piling technique, installation of embedded parts operational procedure, concrete
The conventional construction technical requirements etc. such as pour to repeat no more, emphasis is illustrated basement of the present invention to encorbelment bottom plate is inverse and applied as structure
The embodiment of work.
Basement shown in reference picture 1-5 is encorbelmented, and bottom plate is inverse to make structure, and high-pressure rotary jet grouting pile is set at the absolute altitude of blotter bottom
3rd, high-pressure rotary-spray piling wall 12, the pre-buried anti-float anchor rod 4 of high-pressure rotary jet grouting pile stake top.
High-pressure rotary-spray piling wall is arranged on down at cast-in-place exterior wall 5, insertion Prefabricated Concrete lateral retaining wall 13, Prefabricated Concrete lateral retaining wall before initial set
It is provided with wall rib 14, tongue and groove 15.
Blotter top sets deformation adjustment layer, up and down respectively concrete underlayer 24, bed course 26 on concrete, bed course top on concrete
Portion's installation predetermined level plate 27.
Bar shaped notch 28 is left in predetermined level plate, and has overhanging reserved dowel 29, respectively with the wall knot of both sides
Pre-buried straight screw sleeve 21 is connected in structure.
The inverse node layer of structure setting three of making strengthens steel plate, and joint strengthening upper steel plate 30 is arranged in the middle part of predetermined level plate, section
Point strengthens lower steel plate and is arranged on bed course on concrete, and anchor pole connecting plate 32 is arranged at the top of predetermined level plate, is set on anchor pole connecting plate
There is rubber support 33.
Under cast-in-place exterior wall single side formwork system be made up of adjustable frames 38, transverse connecting rod 39, oblique connecting rod 40.
As shown in fig. 6, basement is encorbelmented, bottom plate is as follows against the construction procedure for making structure：
1) foundation excavation and pile foundation construction：Excavation of foundation pit is to blotter absolute altitude 35, high-pressure rotary jet grouting pile 3 of constructing, diameter 2-
3m, anti-float anchor rod 4 is provided with high-pressure rotary jet grouting pile, anchor pole is 20mm diameter reinforcing bars, length 5m, overhangs stake top 50cm；It is high
The synchronous construction of pressure rotary-spraying piling wall 12, the same high-pressure rotary jet grouting pile of diameter, position are arranged on down at cast-in-place exterior wall 5, are inserted before concrete initial set
Enter Prefabricated Concrete lateral retaining wall 13, Prefabricated Concrete lateral retaining wall band wall rib 14, tongue and groove 15, and be embedded with screw rod branch sleeve 16.
2) cast-in-place external wall construction under cantilever part：Treat that high-pressure rotary jet grouting pile 3, high-pressure rotary-spray piling wall 12 reach design code intensity
Afterwards, excavation pit is to foundation slab structure bottom absolute altitude 34, under cast-in-place exterior wall lateral surface along the vertical cut of Prefabricated Concrete lateral retaining wall 13, open
Trailing flank cleaning is dug, makes the pre-buried exposing surface of screw rod branch sleeve 16.Screw arbor with nut at both-ends 17 is installed, Screw arbor with nut at both-ends 45mm is single
Collateral mould pours down cast-in-place exterior wall；Completion is poured, carries out down the construction of waterproof layer of cast-in-place exterior wall, inner side is using spray film waterproof.
3) Cantilever Beams are constructed：When reserved cantilevered plate position reinforcing bar is reserved, the joint location of reinforcing bar, intermediate plate colligation are controlled
Shi Caiyong one end gas pressure welding, one end overlap welding connection；Cantilever Beams together carry out cantilever part beam concrete casting with agent structure
Construction.
4) deformation adjustment layer is constructed：Bottom board concrete underlayer 24 of encorbelmenting first is poured, 50mm thickness pea gravel concretens are done on bed course
Bed course, superficial compaction troweling, blotter 23 is laid, then lays base plate waterproofing 11 of encorbelmenting, in blinding concrete maintenance simultaneously
Paving SBS coil waterproof layers after drying, waterproof layer plate surrounding Liang Shangyu it is original it is ready-made on return to stations water layer overlapping 25cm
To Bars In Poured Concrete Slab bottom；200 thick polystyrene board protecting layers are laid on waterproof layer, form Combined changeable regulating course.
5) predetermined level plate is installed:After deformation adjustment layer 25 is constructed, bed course 26 on concrete are poured, are flattened, then lifting
Predetermined level plate 27.Adjustment position, make anti-float anchor rod 4 through the preformed hole on predetermined level plate；Under cast-in-place exterior wall side dowel
Reserved steel bar links together on the outside of cast-in-place exterior wall with.
6) top is arrived in normal host construction：Inner side of outer wall of encorbelmenting sets reserved dowel to be connected with predetermined level plate 27, encorbelments
Floor plates formwork erection on predetermined level plate, after reinforcing bar colligation, form for seal one-piece casting to top.
7) encorbelment and construct after bottom plate：Predetermined level plate both sides are connected with the wall being first molded by reinforcing bar colligation respectively,
Embedding rubber water-proof bar, the reserved slab that arrangement, straightening, cleaning were originally constructed are filled out between pouring concrete plate and first pouring concrete beam afterwards
Muscle, and colligation, the concrete casting of design load is used after formwork.
Claims (1)
- The inverse construction method made of bottom plate 1. a kind of basement is encorbelmented, it is characterised in that comprise the following steps：1）Foundation excavation and pile foundation construction：Excavation of foundation pit is to blotter absolute altitude（35）, high-pressure rotary jet grouting pile of constructing（3）, high pressure rotation Spray stake（3）In be provided with anti-float anchor rod（4）, stretch out stake top；High-pressure rotary-spray piling wall（12）Synchronous construction, position are arranged on down cast-in-place Exterior wall（5）Locate, Prefabricated Concrete lateral retaining wall is inserted before concrete initial set（13）, Prefabricated Concrete lateral retaining wall band wall rib（14）, tongue and groove（15）, and It is embedded with screw rod branch sleeve（16）；2）Cast-in-place external wall construction under cantilever part：Treat high-pressure rotary jet grouting pile（3）, high-pressure rotary-spray piling wall（12）Reach design code intensity Afterwards, excavation pit is to foundation slab structure bottom absolute altitude（34）, under cast-in-place exterior wall lateral surface along Prefabricated Concrete lateral retaining wall（13）Vertically open Dig, excavate trailing flank cleaning, make pre-buried screw rod branch sleeve（16）Exposing surface；Screw arbor with nut at both-ends is installed（17）, single side formwork Pour down cast-in-place exterior wall；Completion is poured, carries out down the construction of waterproof layer of cast-in-place exterior wall, inner side is using spray film waterproof；3）Cantilever Beams are constructed：When reserved cantilevered plate position reinforcing bar is reserved, the joint location of reinforcing bar is controlled, adopt during intermediate plate colligation Connected with one end gas pressure welding, one end overlap welding；Cantilever Beams together carry out cantilever part beam concrete casting construction with agent structure；4）Deformation adjustment layer is constructed：First pour bottom board concrete underlayer of encorbelmenting（24）, in concrete underlayer（24）On do pea gravel concreten Bed course, superficial compaction troweling, lay blotter（23）, then lay base plate waterproofing of encorbelmenting（11）, supported in blinding concrete Paving SBS coil waterproof layers after protecting and drying, SBS coil waterproof layers are in predetermined level plate（27）The Liang Shangyu of surrounding had originally been done Good above-mentioned SBS coil waterproof layers are overlapped to Bars In Poured Concrete Slab bottom；Polystyrene board protecting layer, formation group are laid on SBS coil waterproof layers Box-like deformation adjustment layer；5）Predetermined level plate is installed:Deformation adjustment layer（25）After construction, bed course on concrete is poured（26）, leveling, then lifting Predetermined level plate（27）；Adjustment position, make anti-float anchor rod（4）Through predetermined level plate（27）On preformed hole；Under cast-in-place exterior wall Reserved steel bar links together side dowel on the outside of cast-in-place exterior wall with；6）Top is arrived in normal host construction：Inner side of outer wall of encorbelmenting sets reserved dowel and predetermined level plate（27）It is connected, building of encorbelmenting Laminate formwork erection is in predetermined level plate（27）On, after reinforcing bar colligation, form for seal one-piece casting to top；7）Encorbelment and construct after bottom plate：Predetermined level plate（27）Both sides are connected with the wall being first molded by reinforcing bar colligation respectively, Embedding rubber water-proof bar, the reserved slab that arrangement, straightening, cleaning were originally constructed are filled out between pouring concrete plate and first pouring concrete beam afterwards Muscle, and colligation, the concrete casting of design load is used after formwork.
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| CN201610739666.8A CN106193120B (en) | 2016-08-26 | 2016-08-26 | Basement is encorbelmented, and bottom plate is inverse to make structure and construction method |
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| CN201610739666.8A CN106193120B (en) | 2016-08-26 | 2016-08-26 | Basement is encorbelmented, and bottom plate is inverse to make structure and construction method |
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| CN106193120A CN106193120A (en) | 2016-12-07 |
| CN106193120B true CN106193120B (en) | 2018-04-06 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236474A (en) * | 2020-02-27 | 2020-06-05 | 南京城镇建筑设计咨询有限公司 | Energy station structure outer wall and construction method |
| CN112681373A (en) * | 2020-12-15 | 2021-04-20 | 中铁十一局集团建筑安装工程有限公司 | Backfill reverse construction method for basement cantilever slab |
| CN114215356A (en) * | 2021-12-10 | 2022-03-22 | 中国二十冶集团有限公司 | Construction method for avoiding cold bridge generation in building entrance hall |
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| AU2003206504A1 (en) * | 2002-03-07 | 2003-09-16 | Paul Blazevic | Method of construction |
| CN1639426A (en) * | 2002-03-07 | 2005-07-13 | P·布拉热维奇 | Method of construction |
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| JP2015117545A (en) * | 2013-12-19 | 2015-06-25 | 鹿島建設株式会社 | Construction method for underground tunnel |
| CN105464134A (en) * | 2015-12-31 | 2016-04-06 | 上海建工集团股份有限公司 | Top-down and bottom-up combined construction method and supporting structure of multi-layer underground space below existing facility |
| CN206015722U (en) * | 2016-08-26 | 2017-03-15 | 杭州江润科技有限公司 | Basement is encorbelmented, and base plate is inverse to make structure |
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2016
- 2016-08-26 CN CN201610739666.8A patent/CN106193120B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003206504A1 (en) * | 2002-03-07 | 2003-09-16 | Paul Blazevic | Method of construction |
| CN1639426A (en) * | 2002-03-07 | 2005-07-13 | P·布拉热维奇 | Method of construction |
| CN101498133A (en) * | 2009-02-25 | 2009-08-05 | 广州市住宅建设发展有限公司 | Method and supporting construction for enlarging basement top-down method earth excavation space |
| JP2015117545A (en) * | 2013-12-19 | 2015-06-25 | 鹿島建設株式会社 | Construction method for underground tunnel |
| CN105464134A (en) * | 2015-12-31 | 2016-04-06 | 上海建工集团股份有限公司 | Top-down and bottom-up combined construction method and supporting structure of multi-layer underground space below existing facility |
| CN206015722U (en) * | 2016-08-26 | 2017-03-15 | 杭州江润科技有限公司 | Basement is encorbelmented, and base plate is inverse to make structure |
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Effective date of registration: 20190410 Address after: 312025 Zhenjiang Bridge, Yangxunqiao, Keqiao District, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Dong Xia Construction Engineering Co., Ltd. Address before: 310015 room 3, unit 3, Wanda Commercial Center, Hangzhou, Zhejiang, 1901. Patentee before: Hangzhou Jiang Run Science and Technology Ltd. |
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Address after: 312025 No. 8 Qianqingzhen Cultural Road, Keqiao District, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Dongxia Construction Industry Group Co., Ltd. Address before: 312025 Zhenjiang Bridge, Yangxunqiao, Keqiao District, Shaoxing City, Zhejiang Province Patentee before: Zhejiang Dong Xia Construction Engineering Co., Ltd. |
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