CN204000925U - Prefabricated diaphragm wall - Google Patents
Prefabricated diaphragm wall Download PDFInfo
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- CN204000925U CN204000925U CN201420287486.7U CN201420287486U CN204000925U CN 204000925 U CN204000925 U CN 204000925U CN 201420287486 U CN201420287486 U CN 201420287486U CN 204000925 U CN204000925 U CN 204000925U
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Abstract
The utility model discloses a kind of prefabricated diaphragm wall, it comprises wall monomer (1) and pile foundation (2), multiple wall monomers (1) longitudinally stack form wall row, and prestressed reinforcement (7) will be filled cement paste in whole wall monomers (1) of these row wall row and pile foundation (2) tensioning and prestress hole (3); The inner surface of each wall monomer (1) is provided with the multiple preformed holes of a row and pre-embedded steel slab, in each preformed hole, is provided with connecting reinforcement.This prefabricated diaphragm wall can accelerate speed of application, reduction of erection time, laterally shearing resistance and longitudinally Compressive Bearing Capacity good and while constructing floor without knocking out diaphragm wall concrete.
Description
Technical field
The utility model relates to the Underground Construction technology in field of civil engineering, is specifically a kind of prefabricated diaphragm wall.
Background technology
Along with the progress of Base hole supporting technology and the development of building underground structure technology, there is a kind of diaphragm wall that integrates foundation pit bracing piling wall and two kinds of structures of outer wall of basement, this diaphragm wall not only possessed the supporting of foundation pit bracing piling wall to foundation ditch and water retaining function but also can be directly as outer wall of basement with supporting building superstructure, construct after this body of wall, without more separately construction foundation pit go along with sb. to guard him piling wall and outer wall of basement, therefore the significantly reduction of erection time, and because outer wall of basement and foundation pit bracing piling wall integrate, this has just expanded the usable floor area of underground structure and has dwindled the area that building site takies, meet the situation of present urban land area growing tension.
The construction method of the diaphragm wall of prior art is: subdrilling stake hole, and then dig the mounting groove identical with body of wall shape, then put into pile foundation steel bar cage and put into wall steel bar cage to mounting groove in stake hole, then one is watered and is smash body of wall and pile foundation concrete.There is a drawback in the construction method of prior art: because whole body of wall volume is large, water the concrete amount of smashing many, hardening of concrete speed is too slow, and the duration is oversize.
In order to accelerate speed of application, reduction of erection time, someone has proposed a kind of by construction imagination first prefabricated diaphragm wall, i.e. first prefabricated diaphragm wall, then directly the prefabricated exterior wall completely that hardened is transported to job site, again by its direct handling in mounting groove, so just nature is without the hardening of concrete of waiting for diaphragm wall, significantly reduction of erection time.But the bulky of diaphragm wall, nature can not, by complete diaphragm wall carrying and handling, so can only precast wall monomer, be spliced into overall diaphragm wall by the handling of wall monomer to mounting groove.This imagination is owing to there being a technical barrier that is difficult to overcome and cannot realizing: be exactly between wall monomer and wall monomer be longitudinally short transverse be connected and diaphragm wall and pile foundation between cannot realize longitudinal connection, like this, the shear strength of whole body of wall and longitudinal load-bearing power deficiency, cannot bear soil body lateral pressure, also cannot support the longitudinal pressure of building superstructure.And, also there is a defect in this imagination: because diaphragm wall is prefabricated, like this, need to water while smashing basement floor, must knock out the diaphragm wall concrete of floor with absolute altitude, expose reinforcing bar, by floor bar and diaphragm wall steel reinforcement abutting joints, finally water and smash floorslab concrete again, the floorslab concrete of constructing must knock out diaphragm wall concrete, process is loaded down with trivial details, even easily continuous underground wall structure is damaged.
Utility model content
The technical problems to be solved in the utility model is, provide one can accelerate speed of application, reduction of erection time, laterally shearing resistance and longitudinally Compressive Bearing Capacity good and while constructing floor without knocking out the concrete prefabricated diaphragm wall of diaphragm wall.
Technical solution of the present utility model is, a kind of prefabricated diaphragm wall is provided, it comprises multiple wall monomers and many piles base, each wall monomer is longitudinally penetrated with multiple prestress holes and multiple non-prestressed hole, the left and right side of the outer protruding wall monomer of transverse reinforcement of each wall monomer, multiple wall monomers longitudinally superpose and form row wall row, in the prestress hole of whole wall monomers of every row wall row, be penetrated with a prestressed reinforcement with well, the lower end of prestressed reinforcement and the lower end of sleeve pipe are all anchored in pile foundation concrete, prestressed reinforcement will be filled cement paste in whole wall monomers of these row wall row and pile foundation tensioning and prestress hole, in the non-prestressed hole of whole wall monomers of every row wall row, be penetrated with in a nonprestressed reinforcement and non-prestressed hole and also fill cement paste, between every two adjacent wall row, be provided with concrete joint portion, be provided with joint portion reinforcing cage in concrete joint portion, joint portion reinforcing cage docks fixing with the transverse reinforcement that stretches into concrete joint portion of the wall row of the left and right sides, the inner surface of each wall monomer is provided with a level to groove, level is provided with the multiple preformed holes of a row and a pre-embedded steel slab to groove bottom land, pre-embedded steel slab is positioned at the below of row's preformed hole, in each preformed hole, be provided with wall monomer reinforcing cage and dock fixing connecting reinforcement, level is spirally connected one for blocking the shrouding of pre-embedded steel slab and preformed hole in groove.
Utilize the construct method of outer wall of basement and floor of prefabricated diaphragm wall of the present utility model, its step comprises:
A, dig mounting groove and bore multiple holes, stake hole is positioned at the bottom land of mounting groove;
B, in each hole, insert pile foundation steel bar cage and a prestressed reinforcement with well, and to the slip casting of stake hole;
C, multiple wall monomers are longitudinally superimposed as to multiple walls are listed as and put into mounting groove, each wall is listed as by multiple wall monomers and is formed by stacking from the bottom up, and in the pile foundation below each wall is listed as, the prestressed reinforcement of anchoring and sleeve pipe are listed as the prestress hole of whole wall monomers through this wall, in the non-prestressed hole of the whole wall monomers that are listed as to each wall again, insert nonprestressed reinforcement, then slip casting in the prestress hole being listed as to each wall and non-prestressed hole, after band concrete is stiff, tensioning prestressed reinforcement, like this, the wall monomer of multiple longitudinal stack has formed overall wall row;
D, in the gap between every two adjacent walls row, insert joint portion reinforcing cage, and the transverse reinforcement protruding on the side of each wall monomer of wall row docks fixing with joint portion reinforcing cage, then slip casting in gap, make it to form the concrete joint portion between wall row, like this, the overall diaphragm wall of multiple wall row formation;
E, at the high floorslab concrete of smashing basement top layer that waters of diaphragm wall top mark, and on the floor of basement top layer, stay in advance and dig and unearthed operation hole;
F, under dig the soil body in diaphragm wall until under dig the absolute altitude of lower one deck basement floor, lay down the shrouding of the wall monomer of this absolute altitude, preformed hole and the pre-embedded steel slab of wall monomer inner surface are exposed, on pre-embedded steel slab, weld angle steel, re-lay the reinforcing cage of this floor plate and the horizontal steel bar of floor bar cage is stretched into preformed hole and dock with the connecting reinforcement in preformed hole, water again and smash floorslab concrete and preformed hole slip casting tamped and the horizontal steel plate of angle steel is also anchored in concrete, water while smashing floor, same reserving on floor under continuation dug and unearthed operation hole,
G, repeating step f, until the floor slab construction of the bottom of basement completes.
The utility model prefabricated diaphragm wall compared with prior art, has the following advantages and effect:
First, the agent structure of this diaphragm wall is that each wall monomer is prefabricated, only has the on-the-spot slip casting in coupling part, like this, has significantly reduced on-the-spot grouting amount, therefore the stiff speed of concrete is fast, significantly accelerates speed of application, shortens construction period, secondly, from longitudinal direction, prestressed reinforcement is by multiple wall monomers of same wall row and the longitudinally tensioning of concrete of pile foundation, horizontal shearing resistance and longitudinal Compressive Bearing Capacity of wall row are improved, and the prestressed reinforcement in prestress hole and cement paste have formed longitudinal prestressing concrete joint pin, but not nonprestressed reinforcement and cement paste in prestress hole formed longitudinal non-prestressed concrete joint pin, prestressed concrete joint pin further becomes multiple wall monomers integral wall row with non-prestressed concrete joint pin with pile foundation reinforcement, further increase its horizontal shearing resistance and longitudinal Compressive Bearing Capacity, this just overcome that longitudinal between wall monomer and wall monomer is connected and diaphragm wall and pile foundation between the longitudinal technical barrier that cannot realize that is connected, again, by the joint portion reinforcing cage in concrete joint portion, by fixing the transverse reinforcement docking of the wall row of the left and right sides, make each wall row laterally connect into overall diaphragm wall, and, when construction floor, without as prior art, metope concrete being knocked out, but the shrouding of dismantling, expose the connecting reinforcement in preformed hole and preformed hole, again connecting reinforcement is docked fixing with floor bar cage, water and smash floorslab concrete, floor slab construction process is convenient and swift, and the firm and reliable connection of floor and diaphragm wall, moreover, on pre-embedded steel slab, weld angle steel, and angle steel is anchored in floorslab concrete, like this, just reinforce being connected of floor and diaphragm wall, improved the shear strength of its link position.
Brief description of the drawings
Fig. 1 is the structural representation of facing of the utility model prefabricated diaphragm wall and floor.
Fig. 2 be the utility model prefabricated diaphragm wall wall monomer face structural representation.
Fig. 3 is the positive sectional structure schematic diagram of the wall row of the utility model prefabricated diaphragm wall.
Fig. 4 is the positive sectional structure schematic diagram of the amplification of the utility model prefabricated diaphragm wall and floor junction.
Fig. 5 is the plan structure schematic diagram of the utility model prefabricated diaphragm wall.
Shown in figure 1, wall monomer, 2, pile foundation, 3, prestress hole, 4, non-prestressed hole, 5, transverse reinforcement, 6, sleeve pipe, 7, prestressed reinforcement, 8, nonprestressed reinforcement, 9, concrete joint portion, 10, joint portion reinforcing cage, 11, level is to groove, 12, preformed hole, 13, pre-embedded steel slab, 14, connecting reinforcement, 15, shrouding, 16, stake hole, 17, mounting groove, 18, floor, 19, operation hole, 20, angle steel, 21, horizontal steel bar.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, the utility model prefabricated diaphragm wall, it comprises multiple wall monomers 1 and many piles base 2.Each wall monomer 1 is longitudinally penetrated with multiple prestress holes 3 and multiple non-prestressed hole 4, the left and right side of the outer protruding wall monomer 1 of transverse reinforcement 5 of each wall monomer 1.Multiple wall monomers 1 longitudinally stack form row wall row, in the prestress hole 3 of whole wall monomers 1 of every row wall row, be penetrated with a prestressed reinforcement 7 with sleeve pipe 6, the lower end of the lower end of prestressed reinforcement 7 and sleeve pipe 6 is all anchored in pile foundation 2 concrete, and prestressed reinforcement 7 will be filled cement paste in whole wall monomers 1 of these row wall row and pile foundation 2 tensionings and prestress hole 3.In the non-prestressed hole 4 of whole wall monomers 1 of every row wall row, be penetrated with in a nonprestressed reinforcement 8 and non-prestressed hole 4 and also fill cement paste.Between every two adjacent wall row, be provided with concrete joint portion 9, be provided with joint portion reinforcing cage 10 in concrete joint portion 9, joint portion reinforcing cage 10 docks fixing with the transverse reinforcement that stretches into concrete joint portion 95 of the wall row of the left and right sides.Specifically, the right flank that is positioned at each wall monomer 1 of the wall row in 9 left sides, concrete joint portion is protruding with transverse reinforcement 5, and this transverse reinforcement 5 docks fixing with joint portion reinforcing cage 10; The left surface that is positioned at each wall monomer 1 of the wall row on 9 right sides, concrete joint portion is protruding with transverse reinforcement 5, and this transverse reinforcement 5 docks fixing with joint portion reinforcing cage 10.The inner surface of each wall monomer 1 is provided with a level to groove 11, and level is provided with the multiple preformed holes 12 of a row and a pre-embedded steel slab 13 to groove 11 bottom lands.Multiple preformed holes 12 are horizontally in a row, and pre-embedded steel slab 13 is positioned at the below of row's preformed hole 12.In each preformed hole 12, be provided with wall monomer 1 reinforcing cage and dock fixing connecting reinforcement 14.Level is spirally connected one for blocking the shrouding 15 of pre-embedded steel slab 13 and preformed hole 12 in groove 11.Specifically, level is embedded with the built-in fitting with internal thread hole to the bottom land of groove 11, and screw screws in the internal thread hole of built-in fitting through the through hole of shrouding 15.
Utilize the construct method of outer wall of basement and floor of prefabricated diaphragm wall of the present utility model, it comprises the following steps.
A, dig mounting groove 17 and bore multiple holes 16, stake hole 16 is positioned at the bottom land of mounting groove 17.
B, in each hole 16 interior insertion pile foundation 2 reinforcing cages and a prestressed reinforcement 7 with sleeve pipe 6, and to 16 slip castings of stake hole, like this, prestressed reinforcement 7 and sleeve pipe 6 are all anchored in pile foundation 2, and prestressed reinforcement 7 lower ends form anchored end.
C, multiple wall monomers 1 are longitudinally superimposed as to multiple walls and are listed as and put into mounting groove 17, each wall is listed as by multiple wall monomers 1 and is formed by stacking from the bottom up, and in the pile foundation 2 below each wall is listed as, the prestressed reinforcement 7 of anchoring and sleeve pipe 6 are listed as the prestress hole 3 of whole wall monomers 1 through this wall, the interior insertion nonprestressed reinforcement 8 in non-prestressed hole 4 of the whole wall monomers 1 that are listed as to each wall again, then the interior slip casting of prestress hole 3 and non-prestressed hole 4 being listed as to each wall, after band concrete is stiff, tensioning prestressed reinforcement 7, like this, the wall monomer 1 of multiple longitudinal stacks has formed overall wall row.
D, in the gap between every two adjacent walls row, insert joint portion reinforcing cage 10, and the transverse reinforcement 5 protruding on the side of each wall monomer 1 of wall row docks fixing with joint portion reinforcing cage 10, then to slip casting in gap, make it to form the concrete joint portion 9 between wall row, like this, the overall diaphragm wall of multiple wall row formation.
E, at high floor 18 concrete of smashing basement top layer that water of diaphragm wall top mark, the end face that vertically protrudes this wall monomer 1 to reinforcing bar of the reinforcing cage of a wall monomer 1 of each wall row the top, while laying basement top floor 18 with the floor 18 of ground level, by the reinforcing cage of this floor plate 18 and being vertically connected to reinforcing bar of protruding on wall monomer 1 end face of wall row the top, and set up template, water floor 18 concrete of smashing top layer.On the floor 18 of basement top layer, stay in advance and dig and unearthed operation hole 19, this operation hole 19 polishing again after basement structure construction completes.
F, multiple tracks diaphragm wall form the edge of foundation ditch, under the soil body that digs in diaphragm wall form foundation ditch.Under dig the soil body in diaphragm wall until under dig the absolute altitude of lower one deck basement floor 18, lay down the shrouding 15 of the wall monomer 1 of this absolute altitude, preformed hole 12 and the pre-embedded steel slab 13 of wall monomer 1 inner surface are exposed, on pre-embedded steel slab 13, weld angle steel 20, re-lay the reinforcing cage of this floor plate 18 and the horizontal steel bar 21 of floor 18 reinforcing cages is stretched into preformed hole 12 and dock with the connecting reinforcement 14 in preformed hole 12, water again and smash floor 18 concrete and preformed hole 12 slip castings tamped and the horizontal steel plate of angle steel 20 is also anchored in concrete, water while smashing floor 18, same reserving on floor 18 under continuation dug and unearthed operation hole 19.
G, repeating step f, until the floor 18 of the bottom of basement has been constructed, water while smashing bottom floor 18, without giving over to industry hole 19.
Claims (1)
1. a prefabricated diaphragm wall, it is characterized in that: it comprises multiple wall monomers (1) and many piles base (2), each wall monomer (1) is longitudinally penetrated with multiple prestress holes (3) and multiple non-prestressed hole (4), the left and right side of the outer protruding wall monomer of transverse reinforcement (5) (1) of each wall monomer (1), multiple wall monomers (1) longitudinally stack form row wall row, in the prestress hole (3) of whole wall monomers (1) of every row wall row, be penetrated with the prestressed reinforcement (7) of a band sleeve pipe (6), the lower end of the lower end of prestressed reinforcement (7) and sleeve pipe (6) is all anchored in pile foundation (2) concrete, prestressed reinforcement (7) will be filled cement paste in whole wall monomers (1) of these row wall row and pile foundation (2) tensioning and prestress hole (3), in the non-prestressed hole (4) of whole wall monomers (1) of every row wall row, be penetrated with in a nonprestressed reinforcement (8) and non-prestressed hole (4) and also fill cement paste, between every two adjacent wall row, be provided with concrete joint portion (9), in concrete joint portion (9), be provided with joint portion reinforcing cage (10), joint portion reinforcing cage (10) docks fixing with the transverse reinforcement that stretches into concrete joint portion (9) (5) of the wall row of the left and right sides, the inner surface of each wall monomer (1) is provided with a level to groove (11), level is provided with the multiple preformed holes of a row (12) and a pre-embedded steel slab (13) to groove (11) bottom land, pre-embedded steel slab (13) is positioned at the below of row's preformed hole (12), in each preformed hole (12), be provided with wall monomer (1) reinforcing cage and dock fixing connecting reinforcement (14), level is spirally connected one for blocking the shrouding (15) of pre-embedded steel slab (13) and preformed hole (12) in groove (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420287486.7U CN204000925U (en) | 2014-05-30 | 2014-05-30 | Prefabricated diaphragm wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420287486.7U CN204000925U (en) | 2014-05-30 | 2014-05-30 | Prefabricated diaphragm wall |
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| Publication Number | Publication Date |
|---|---|
| CN204000925U true CN204000925U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420287486.7U Withdrawn - After Issue CN204000925U (en) | 2014-05-30 | 2014-05-30 | Prefabricated diaphragm wall |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018518A (en) * | 2014-05-30 | 2014-09-03 | 浙江大学宁波理工学院 | Prefabricated underground diaphragm wall and method for constructing outer basement wall and floor slabs |
| CN104895049A (en) * | 2015-05-27 | 2015-09-09 | 广西交通科学研究院 | Prefabrication-cast-in-situ mixed underground continuous wall and construction method thereof |
| CN106948337A (en) * | 2017-04-13 | 2017-07-14 | 大成科创基础建设股份有限公司 | The diaphram wall and its construction method of the wall of prestressing force assembled two unification |
| CN108265702A (en) * | 2018-01-26 | 2018-07-10 | 中铁上海工程局集团华海工程有限公司 | Diaphram wall cage top reinforcing bar protects structure and construction method |
| CN115478561A (en) * | 2022-07-26 | 2022-12-16 | 浙大宁波理工学院 | Construction method of assembled underground continuous wall |
-
2014
- 2014-05-30 CN CN201420287486.7U patent/CN204000925U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018518A (en) * | 2014-05-30 | 2014-09-03 | 浙江大学宁波理工学院 | Prefabricated underground diaphragm wall and method for constructing outer basement wall and floor slabs |
| CN104018518B (en) * | 2014-05-30 | 2016-01-20 | 浙江大学宁波理工学院 | The method of prefabricated diaphragm wall and construction outer wall of basement and floor |
| CN104895049A (en) * | 2015-05-27 | 2015-09-09 | 广西交通科学研究院 | Prefabrication-cast-in-situ mixed underground continuous wall and construction method thereof |
| CN106948337A (en) * | 2017-04-13 | 2017-07-14 | 大成科创基础建设股份有限公司 | The diaphram wall and its construction method of the wall of prestressing force assembled two unification |
| CN108265702A (en) * | 2018-01-26 | 2018-07-10 | 中铁上海工程局集团华海工程有限公司 | Diaphram wall cage top reinforcing bar protects structure and construction method |
| CN115478561A (en) * | 2022-07-26 | 2022-12-16 | 浙大宁波理工学院 | Construction method of assembled underground continuous wall |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141210 Effective date of abandoning: 20160120 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |