CN105040677B - Foundation ditch prefabricated pile and the method for attachment of cast-in-place overlapping inwall stirrup - Google Patents
Foundation ditch prefabricated pile and the method for attachment of cast-in-place overlapping inwall stirrup Download PDFInfo
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- CN105040677B CN105040677B CN201510493530.9A CN201510493530A CN105040677B CN 105040677 B CN105040677 B CN 105040677B CN 201510493530 A CN201510493530 A CN 201510493530A CN 105040677 B CN105040677 B CN 105040677B
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Abstract
The invention discloses the method for attachment of foundation ditch prefabricated pile and cast-in-place overlapping inwall stirrup, comprise the following steps: after prefabricated pile determines size by design, arrange main muscle and the stirrup of stake, at the pile ring muscle link position with table muscle, arranging junction steel plate along pile body, described junction steel plate is provided with a connecting hole and wall connecting hole；Described pile ring muscle dowel is connected by described stake connecting hole and described junction steel plate are fixing, and material is stifled fills out described wall connecting hole with cramming；Pour pile concrete, after maintenance to design strength, prefabricated pile is squeezed into design of foundation pit position, after excavation of foundation pit completes, described in removing, cram material, expose described wall connecting hole；By design requirement, arrange main muscle, stirrup in the relevant position of cast-in-place wall and bend up muscle, the table muscle dowel in described cast-in-place wall is connected, after having connected by described wall connecting hole and junction steel plate are fixing, pour the concrete of cast-in-place wall, complete the connection of prefabricated pile and cast-in-place overlapping wall.
Description
Technical field
When the present invention relates to that a kind of excavation of foundation pit utilizes prefabricated pile as fender post, pile body stirrup and cast-in-place overlapping table muscle
Method of attachment, belongs to Construction Technique of Underground Works field.
Background technology
Along with social development, the raising of labour cost and environmental protection requirement, industrialized production building advantage will be more and more obvious,
Therefore need to strengthen the design to industrialized building and research.In excavation of foundation pit, in order to advance base pit engineering industrialized development, joint
Saving the duration, scene gradually begins with prefabricated components and constructs, such as prefabricated pile, prefabricated stand column stake, prefabricated diaphragm wall etc..
But prefabricated components are when being connected with site concrete, it may appear that link position intensity is not enough and occurs destroying, the most prefabricated fender post
When overlapping wall cast-in-place with the agent structure of foundation ditch is connected, link position globality is poor.
In most cases, when prefabricated pile structure is connected with cast-in-place overlapping wall construction often through connector pre-buried on prefabricated pile,
Connect the stirrup of stake and wall；Or use to reserve and get rid of muscle as dowel.
There is following shortcoming in above technology:
1. for by pre-buried connector on prefabricated pile, connecting the situation of stake and the stirrup of wall, when prefabricated pile size is less,
Connector quantity too much can affect the pile quality of prefabricated pile, and built-in fitting position can become the weak spot that body of wall is impervious, in advance
Embedded part periphery can form infiltration path, affects body of wall anti-permeability performance；
2. for use reserved get rid of muscle as dowel in the case of, be I grade of reinforcing bar or when being relatively large in diameter when getting rid of muscle, carry out secondary
Reinforcing bar can be caused plastic failure by bending, affects dowel quality.
Summary of the invention
For solving deficiencies of the prior art, the present invention provides a kind of during Support of Foundation Pit Excavation, and foundation ditch is prefabricated
Stake and the method for attachment of cast-in-place overlapping inwall stirrup.
For achieving the above object, the present invention adopts the following technical scheme that
Foundation ditch prefabricated pile and the method for attachment of cast-in-place overlapping inwall stirrup, comprise the following steps:
Step 1: after prefabricated pile determines size by design, requires to arrange main muscle and the hoop of respective numbers in relevant position according to design
Muscle, at the pile ring muscle link position with table muscle, arranges junction steel plate along pile body, and described junction steel plate installs in corresponding positions
There are the stake connecting hole for connecting pile ring muscle dowel and the wall connecting hole for connection wall stirrup dowel, make described pile ring muscle
Dowel and described table muscle dowel are attached by described junction steel plate；
Step 2: described pile ring muscle dowel is connected by described stake connecting hole and described junction steel plate are fixing, and with cramming material
Material is stifled fills out described wall connecting hole；
Step 3: pour pile concrete, after maintenance to design strength, squeezes into design of foundation pit position, excavation of foundation pit by prefabricated pile
After completing, described in removing, cram material, expose described wall connecting hole；
Step 4: by design requirement, arranges main muscle, stirrup and bends up muscle, by described cast-in-place wall in the relevant position of cast-in-place wall
Table muscle dowel fixed by described wall connecting hole and junction steel plate and be connected, after having connected, pour the coagulation of cast-in-place wall
Soil, completes the connection of prefabricated pile and cast-in-place overlapping wall.
In terms of improving link position intensity, the junction steel plate in prefabricated pile improves the anti-bending strength of stake, and pre-embedded steel slab solves
The problem that there is quantity more connector when being connected with cast-in-place wall and affect the quality of pile；Pre-embedded steel slab is by screw hole even
Connect prefabricated pile and the stirrup in cast-in-place wall, improve globality and the stability of sleeper at link position.
In terms of saving cost, the cost of cost equivalent amount the to be less than connector of pile body unit length upper steel plate, save work
Journey expense；Will not there is obscission as connector when piling in pile body pre-embedded steel slab, saves the expense of later stage planting rebar.
Junction steel plate is attached with pile ring muscle and table muscle by stake connecting hole, simple to operation.By with cramming material
Wall connecting hole is crammed, and material removing will be crammed after excavation of foundation pit, make wall be achieved with the connection of junction steel plate.
Wherein, in step 1, the reserved perforation that the outermost layer stirrup that described junction steel plate is provided with in prefabricated pile passes through,
Described outermost layer stirrup, by described reserved perforation, forms closed loop.
Outermost stirrup in prefabricated pile is connected to become an entirety by junction steel plate, improves the shearing strength of prefabricated pile.
In step 1, the cross section of described junction steel plate is rectangle, and described stake connecting hole and wall connecting hole are arranged in connection
On the narrow sidewall of two offsides at the described rectangle minor face place of steel plate；Described reserved perforation is arranged in the described rectangle of junction steel plate
On the broad side walls at place, long limit.
Junction steel plate arranges a connecting hole and wall connecting hole, layout economical rationality on narrow sidewall, saves steel plate consumption.Connect
Steel plate has one fixed width, and in terms of improving water resistance, pre-embedded steel slab is generally arranged along prefabricated pile, and width is relatively big,
Equivalence increases subsoil water and enters the percolation path of foundation ditch, improves structure anti-permeability performance.
In step 1, the diameter of described reserved perforation is more than the diameter of described outermost layer stirrup.
The preformed hole diameter of steel plate is more slightly larger than prefabricated pile outermost stirrup maximum gauge, to facilitate stirrup to pass.
In step 1, described junction steel plate includes the horizontal steel plate transversely arranged and longitudinally arranged longitudinal steel plate.
Vertical steel plate in prefabricated pile and horizontal steel plate improve the longitudinally, laterally anti-bending strength of stake,
In step 1, the stake connecting hole of described junction steel plate both sides and wall connecting hole are the most in the same horizontal line.
Meet the requirement requiring in specification that level overlap joint cross dystopia of muscle and tendon is opened, and the firm of horizontal cross-section, junction steel plate connection hole can be increased
Degree.
In step 1, described stake connecting hole and described pile ring muscle dowel screwed connection, described wall connecting hole and described table muscle
Dowel screwed connection.
Use screwed connection, easy to operate, fast, simple and practical.
In step 1, described junction steel plate is all embedded in prefabricated pile.
Junction steel plate is all embedded in prefabricated pile, being smoothed out of beneficially piling process.
In step 2, described in cram the material that material is easy-clear.
Use easy-clear crams material, and after excavation of foundation pit, rejecting of can being more prone to crams material in prefabricated pile,
Accelerating construction progress.
The invention have the benefit that
In terms of improving link position intensity, the longitudinally, laterally steel plate in prefabricated pile improves the longitudinally, laterally flexing resistance of stake
Can, and outermost stirrup in prefabricated pile is connected to become an entirety by steel plate, improves the shearing strength of prefabricated pile；Pre-buried
Steel plate solves the problem that there is the more connector of quantity with cast-in-place wall when being connected and affect the quality of pile；Pre-embedded steel slab passes through
Screw hole is connected to prefabricated pile and the stirrup in cast-in-place wall, improves globality and the stability of sleeper at link position.
In terms of saving cost, the cost of cost equivalent amount the to be less than connector of pile body unit length upper steel plate, save work
Journey expense；Will not there is obscission as connector when piling in pile body pre-embedded steel slab, saves the expense of later stage planting rebar.
In terms of improving water resistance, pre-embedded steel slab is generally arranged along prefabricated pile, and width is relatively big, and equivalence increases underground
Water enters the percolation path of foundation ditch, improves structure anti-permeability performance.
Accompanying drawing explanation
Fig. 1 is prefabricated pile and cast-in-place wall connection diagram；
Fig. 2 is A-A sectional drawing；
Fig. 3 is B-B sectional drawing；
Fig. 4 is longitudinal pre-embedded steel slab schematic diagram；
In figure, 1 is prefabricated pile, and 2 is prefabricated pile concrete, and 3 is prefabricated pile outermost stirrup, and 4 is the main muscle of prefabricated pile, and 5 are
Prefabricated pile lengthwise position stirrup, 6 is prefabricated pile lateral attitude reinforcing bar, and 7 is the horizontal pre-embedded steel slab of prefabricated pile, and 8 is that prefabricated pile is indulged
To pre-embedded steel slab, 9 is cast-in-place wall, and 10 is cast-in-place wall concrete, and 11 is that cast-in-place wall bends up muscle, and 12 is the main muscle of cast-in-place wall, 13
Being cast-in-place wall ring-shaped stirrup, 14 is cast-in-place wall longitudinal direction stirrup, and 15 is cast-in-place wall lateral tie, and 16 is preformed hole, and 17 is spiral shell
Silk hole.
Detailed description of the invention
A kind of method of attachment of small size prefabricated pile 1 and cast-in-place wall 9, including prefabricated pile 1 manufacturing process and with cast-in-place wall 9
Connect two parts.Prefabricated pile carries out prefabricated pile outermost stirrup 3, prefabricated pile lengthwise position stirrup 5, prefabricated pile horizontal stroke by specification
To the arranging of the main muscle of position reinforcing bar 6 and prefabricated pile 4, and bury underground laterally at prefabricated pile 1 design attitude, prefabricated pile the most pre-buried
Steel plate 7, prefabricated pile longitudinal direction pre-embedded steel slab 8, prefabricated pile lengthwise position stirrup 5 and prefabricated pile lateral attitude reinforcing bar 6 respectively with in advance
Reserved screw hole on stake longitudinal direction pre-embedded steel slab 8 processed and the horizontal pre-embedded steel slab of prefabricated pile 7 is attached, then casting concrete
Form prefabricated pile.Carry out excavation of foundation pit after stake is squeezed into design of foundation pit border, carry out the cast-in-place wall of cast-in-place wall 9 longitudinally by design
Stirrup 14, cast-in-place wall lateral tie 15, the main muscle of cast-in-place wall 12 and the arranging of cast-in-place wall ring-shaped stirrup 13, by cast-in-place wall longitudinally
Stirrup 14 and cast-in-place wall lateral tie 15 respectively with on prefabricated pile longitudinal direction pre-embedded steel slab 8 and the horizontal pre-embedded steel slab of prefabricated pile 7
Screw hole is attached, and waters walling body concrete, completes to connect.
The horizontal pre-embedded steel slab of prefabricated pile 7, prefabricated pile longitudinal direction pre-embedded steel slab 8 are buried underground along pile body is elongated at the ad-hoc location of prefabricated pile 1.
Prefabricated pile outermost stirrup 3 in prefabricated pile 1 is from the horizontal pre-embedded steel slab of prefabricated pile 7, prefabricated pile longitudinal direction pre-embedded steel slab 8
Preformed hole 16 in pass.
Prefabricated pile lateral attitude reinforcing bar 6 in prefabricated pile 1, prefabricated pile lengthwise position stirrup 5 and the horizontal pre-embedded steel slab of prefabricated pile 7,
Prefabricated pile longitudinal direction pre-embedded steel slab 8 is connected by the reserved screw hole on steel plate, and the two ends of prefabricated pile lateral attitude reinforcing bar 6 and
One end of prefabricated pile lengthwise position stirrup 5 has screw, and ensures and the longitudinally hoop of the cast-in-place wall within cast-in-place wall corresponding position
Muscle 14, cast-in-place wall lateral tie 15 fold certain altitude.
The method utilizing prefabricated pile to be connected with cast-in-place wall, comprises the following steps:
Step 1: after prefabricated pile 1 determines size by design, determines the main muscle of prefabricated pile 4 and prefabricated pile outermost stirrup according to design
3, prefabricated pile lengthwise position stirrup 5, the quantity of prefabricated pile lateral attitude reinforcing bar 6 and position；
Step 2: be connected the direction of the vertical and horizontal of side at prefabricated pile 1 with cast-in-place wall 9, buries prefabricated pile underground by design attitude horizontal
To pre-embedded steel slab 7, prefabricated pile longitudinal direction pre-embedded steel slab 8, steel plate is along the prefabricated pile 1 elongated layout of pile body；
Step 3: the prefabricated pile outermost stirrup 3 in prefabricated pile 1 is indulged by the horizontal pre-embedded steel slab of pre-buried prefabricated pile 7, prefabricated pile
Preformed hole 16 in pre-embedded steel slab 8 passes, and forms closed loop；
Step 4: in prefabricated pile 1, the prefabricated pile lateral attitude reinforcing bar 6 of ad-hoc location and the horizontal pre-embedded steel slab of prefabricated pile 7 are by pre-
Screw hole 17 on the horizontal pre-embedded steel slab of stake processed 7 is attached, the prefabricated pile lengthwise position stirrup 5 of ad-hoc location and prefabricated pile
Reserved screw hole 17 on longitudinal pre-embedded steel slab 8 is attached welding；
Step 5: the horizontal pre-embedded steel slab of prefabricated pile 7 on prefabricated pile 1, the other end of prefabricated pile longitudinal direction pre-embedded steel slab 8 are pre-
Staying screw hole 17, carry out stifled completing with the material of easy-clear, then pour prefabricated pile concrete 2, maintenance is to design strength；
Step 6: stake 1 is squeezed into design of foundation pit position, carries out excavation of foundation pit, rejects the prefabricated pile in prefabricated pile 1 the most pre-buried
Reserved screw hole 17 on steel plate 7, prefabricated pile longitudinal direction pre-embedded steel slab 8 crams material, exposes screw hole 17；
Step 7: determine the size of cast-in-place wall 9 by design；And determine the main muscle of cast-in-place wall 12 of cast-in-place wall 9, cast-in-place wall annular
Stirrup 13, cast-in-place wall longitudinal direction stirrup 14, cast-in-place wall lateral tie 15 and cast-in-place wall bend up position and the quantity of muscle 11；
Step 8: the cast-in-place wall lateral tie 15 of the ad-hoc location in cast-in-place wall 9, cast-in-place wall longitudinal direction stirrup 14 are respectively with prefabricated
Screw hole 17 reserved on the horizontal pre-embedded steel slab of prefabricated pile 7 in Zhuan, prefabricated pile longitudinal direction pre-embedded steel slab 8 is attached；
Step 9: pour the cast-in-place wall concrete 10 of cast-in-place wall 9, completes prefabricated pile 1 and cast-in-place wall 9 (cast-in-place overlapping wall)
Connect.
Wherein, in step 1, two end grains of prefabricated pile lateral attitude reinforcing bar 6 and one end tool of prefabricated pile lengthwise position stirrup 5
Having screw, prefabricated pile outermost stirrup 3 is by reserving on the horizontal pre-embedded steel slab of prefabricated pile 7, prefabricated pile longitudinal direction pre-embedded steel slab 8
Hole 16 passes；
In step 2, the horizontal pre-embedded steel slab of prefabricated pile 7, the size of prefabricated pile longitudinal direction pre-embedded steel slab 8 determine according to design, and
At ad-hoc location, there is preformed hole 16 on steel plate；
In step 2, the preformed hole 16 of pre-embedded steel slab both sides mutually to stagger certain altitude, it is impossible on same horizontal line；
In step 3, the horizontal pre-embedded steel slab of prefabricated pile 7, the preformed hole diameter 16 of prefabricated pile longitudinal direction pre-embedded steel slab 8 compare prefabricated pile
Outermost stirrup 3 maximum gauge is slightly larger；
In step 5, the material of easy-clear can be polyurethane foam filler, plastic foam, cotton, EPE pearl wool foam
Block, PE Foam, foaming agent, wood flour etc.；These materials should meet following condition: early stage easily fills screw hole, executes in stake
Protect man-hour screw hole to be not easily accessible the foreign material such as earth slurry, and the later stage is conveniently purged.
In step 7, cast-in-place wall lateral tie 15 and one end of cast-in-place wall longitudinal direction stirrup 14 in cast-in-place wall have tap.
Although the detailed description of the invention of the present invention is described by the above-mentioned accompanying drawing that combines, but not to scope
Limiting, one of ordinary skill in the art should be understood that, on the basis of technical scheme, those skilled in the art are not required to
Various amendments that creative work to be paid can be made or deformation are still within protection scope of the present invention.
Claims (8)
1. foundation ditch prefabricated pile and the method for attachment of cast-in-place overlapping inwall stirrup, it is characterised in that comprise the following steps:
Step 1: after prefabricated pile determines size by design, requires to arrange main muscle and the hoop of respective numbers in relevant position according to design
Muscle, at the pile ring muscle link position with table muscle, arranges junction steel plate along pile body, and described junction steel plate is provided with in relevant position
For connecting the stake connecting hole of pile ring muscle dowel and for the wall connecting hole of connection wall stirrup dowel, described pile ring muscle is made to connect
Muscle and described table muscle dowel are attached by described junction steel plate, and described junction steel plate is provided with in prefabricated pile
The reserved perforation that outermost layer stirrup passes through, described outermost layer stirrup, by described reserved perforation, forms closed loop；
Step 2: described pile ring muscle dowel is connected by described stake connecting hole and described junction steel plate are fixing, and with cramming material
Material is stifled fills out described wall connecting hole；
Step 3: pour pile concrete, after maintenance to design strength, squeezes into design of foundation pit position, excavation of foundation pit by prefabricated pile
After completing, described in removing, cram material, expose described wall connecting hole；
Step 4: by design requirement, arranges main muscle, stirrup and bends up muscle, by described cast-in-place wall in the relevant position of cast-in-place wall
Table muscle dowel fixed by described wall connecting hole and junction steel plate and be connected, after having connected, pour the concrete of cast-in-place wall,
Complete the connection of prefabricated pile and cast-in-place overlapping wall.
Foundation ditch prefabricated pile the most according to claim 1 and the method for attachment of cast-in-place overlapping inwall stirrup, it is characterised in that:
In step 1, the cross section of described junction steel plate is rectangle, and described stake connecting hole and wall connecting hole are arranged in the institute of junction steel plate
On the narrow sidewall of two offsides stating rectangle minor face place；Described reserved perforation is arranged in the place, described rectangle long limit of junction steel plate
On broad side walls.
Foundation ditch prefabricated pile the most according to claim 1 and the method for attachment of cast-in-place overlapping inwall stirrup, it is characterised in that:
In step 1, the diameter of described reserved perforation is more than the diameter of described outermost layer stirrup.
Foundation ditch prefabricated pile the most according to claim 1 and the method for attachment of cast-in-place overlapping inwall stirrup, it is characterised in that:
In step 1, described junction steel plate includes the horizontal steel plate transversely arranged and longitudinally arranged longitudinal steel plate.
Foundation ditch prefabricated pile the most according to claim 1 and the method for attachment of cast-in-place overlapping inwall stirrup, it is characterised in that:
In step 1, the stake connecting hole of described junction steel plate both sides and wall connecting hole are the most in the same horizontal line.
Foundation ditch prefabricated pile the most according to claim 1 and the method for attachment of cast-in-place overlapping inwall stirrup, it is characterised in that:
In step 1, described stake connecting hole and described pile ring muscle dowel screwed connection, described wall connecting hole and described table muscle dowel silk
Button connects.
Foundation ditch prefabricated pile the most according to claim 1 and the method for attachment of cast-in-place overlapping inwall stirrup, it is characterised in that:
In step 1, described junction steel plate is all embedded in prefabricated pile.
Foundation ditch prefabricated pile the most according to claim 1 and the method for attachment of cast-in-place overlapping inwall stirrup, it is characterised in that:
In step 2, described in cram the material that material is easy-clear.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510493530.9A CN105040677B (en) | 2015-08-12 | 2015-08-12 | Foundation ditch prefabricated pile and the method for attachment of cast-in-place overlapping inwall stirrup |
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| CN201510493530.9A CN105040677B (en) | 2015-08-12 | 2015-08-12 | Foundation ditch prefabricated pile and the method for attachment of cast-in-place overlapping inwall stirrup |
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| CN105040677A CN105040677A (en) | 2015-11-11 |
| CN105040677B true CN105040677B (en) | 2016-11-02 |
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| CN111206597A (en) * | 2020-03-04 | 2020-05-29 | 中铁上海工程局集团有限公司 | Connecting structure and connecting method for foundation pit precast pile and cast-in-place superposed lining wall |
| CN111364447B (en) * | 2020-03-27 | 2021-06-08 | 哈尔滨工业大学 | Permanent multifunctional underground continuous wall and construction method thereof |
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| CN201395870Y (en) * | 2009-02-04 | 2010-02-03 | 南通建筑工程总承包有限公司 | Connection node between reinforced concrete fully pre-fabricated assembly structural shear wall and beam |
| DE102009016893B4 (en) * | 2009-04-08 | 2011-12-08 | Nordex Energy Gmbh | Anchoring component for a wind turbine tower |
| CN102493603B (en) * | 2011-12-30 | 2013-11-27 | 王夏静 | Prefabricated column of reserved concealed column channel, concealed column type complete assembled earthquake-resistant building and its method |
| CN102704574A (en) * | 2012-05-21 | 2012-10-03 | 天津大学 | Node structure of precast concrete tubular column steel beam and construction method of node structure |
| DE102012223184A1 (en) * | 2012-12-14 | 2014-06-18 | Vilgertshofer Bau Gmbh | Method for mounting light wells on concrete wall, involves embedding two mounting rails in concrete on side of window cut in wall and screwing prefabricated light well to mounting rails, where each mounting rail has multiple anchor elements |
| CN203640159U (en) * | 2013-11-08 | 2014-06-11 | 湖北弘毅建设有限公司 | Prestress box steel reinforced concrete composite beam |
| 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 |
| CN104695626B (en) * | 2015-03-11 | 2016-09-07 | 济南轨道交通集团有限公司 | A kind of separate type prefabricated reinforced concrete bracket column and construction method |
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