CN110306533A - The construction method of steel reinforced concrete column type connector and the joint continuous concrete wall - Google Patents
The construction method of steel reinforced concrete column type connector and the joint continuous concrete wall Download PDFInfo
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- CN110306533A CN110306533A CN201910605738.3A CN201910605738A CN110306533A CN 110306533 A CN110306533 A CN 110306533A CN 201910605738 A CN201910605738 A CN 201910605738A CN 110306533 A CN110306533 A CN 110306533A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/20—Bulkheads or similar walls made of prefabricated parts and concrete, including reinforced concrete, in situ
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Abstract
The invention discloses steel reinforced concrete column type connector steel reinforced concrete column type connectors, including diaphragm wall ontology, the inside of the diaphragm wall ontology offers wall chase, the inside of the wall chase is fixedly connected with steel column, using the construction method of the joint continuous concrete wall, specifically includes the following steps: S1, before slot section excavation, it is constructed along diaphragm wall longitudinal axis position and leads wall, it is poured using cast-in-place concrete or armored concrete, after slot section unwrapping wire, the present invention relates to underground continuous wall construction technique fields.The construction method of the steel reinforced concrete column type connector and the joint continuous concrete wall, by the way that existing junction block is changed to fashioned iron column joint in the processing of continuous wall section connector, the overall structural strength of the diaphragm wall can be effectively increased, improve construction efficiency, simultaneously on the basis of guaranteeing construction quality, simultaneously for other junction blocks, antiseep effect is good, also alleviates certain working strength to staff.
Description
Technical field
The present invention relates to underground continuous wall construction technique fields, specially steel reinforced concrete column type connector and the connector underground
The construction method of diaphragm wall.
Background technique
Diaphram wall is that foundation engineering uses a kind of trench machine on the ground, along all side axis of deep excavation project
Line excavates out a long and narrow deep trouth under the conditions of mud off, after clear slot, steel reinforcement cage is hung in slot, then uses tremie method
Underwater concreting with tremie method builds up a unit groove section, so carries out paragraph by paragraph, builds up continuous reinforced concrete wall together in underground
Wall, as intercept water, antiseepage, load-bearing and water-retaining structure, wall stiffness is big, when being used for excavation of foundation pit, very big soil pressure can be born,
It is few that settlement of foundation or cave in accident occurs, have become essential soil-baffling structure in Deep Foundation Pit Supporting Project, is suitable for
A variety of foundation conditions, diaphram wall are very wide to the scope of application of ground, from weak alluvial formation stratum hard in, closely knit
Sandy gravel stratum, all grounds such as various soft rocks and hard rock can build diaphram wall, and work efficiency height, short time limit, quality can
It leans on and high financial profit, with small vibration, low noise when construction is very suitable in municipal construction, land occupation is few, can make full use of building
Limited ground and space within red line give full play to returns of investment, and barrier performance is good, due to wall joint form and construction party
The improvement of method keeps diaphram wall almost waterproof, can be used as rigid foundation, it is anti-that diaphram wall is no longer purely by way of antiseepage
Water, deep base pit enclosure wall, and pile foundation, open caisson or caisson foundation are replaced with diaphram wall more and more, it bears bigger
Load, work efficiency height, short time limit, reliable in quality and high financial profit.
The operating process of existing diaphram wall is to lead wall, mud off, trenching construction, subaqueous concreting and wall
Section connector processing etc., is usually all equal in the pre-inserted diameter in the end of slot section and groove width especially in the processing of wall section
Steel pipe, i.e. locking notch pipe, also with good grounds wall body structure stress needs and rigid joint is arranged, but the structure of existing rigid joint
Intensity is lower, and antiseep effect is poor, and in the environment of some special geologic conditions, this rigid joint is much to be not achieved
Using effect, therefore in practical usage situations, existing construction requirement is also not achieved in the construction method of the diaphragm wall.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides steel reinforced concrete column type connector and the joint continuous concrete walls
Construction method, the structural strength for solving existing rigid joint is lower, the poor problem of antiseep effect.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs: steel reinforced concrete column type connector, including
Diaphragm wall ontology, the inside of the diaphragm wall ontology offer wall chase, and the inside of the wall chase is fixedly connected with steel column.
Using the construction method of the joint continuous concrete wall, specifically includes the following steps:
S1, slot section excavation before, constructed along diaphragm wall longitudinal axis position and lead wall, using cast-in-place concrete or reinforced concrete
Soil pours, and after slot section unwrapping wire, should construct along diaphram wall axis two sides and lead wall, and enough rigidity and carrying energy will be had by leading wall
Power, the design strength grade of concrete not preferably less than C20, leading wall bottom surface should not be arranged on recent fill, and buried depth is unsuitable small
In 1.5m；
S2, it is drilled by drilling device, when grabbing churn construction using impact type or punching, neighbouring soil layer is because being shaken
Dynamic and the adjacent hole of influence firm, timely borehole cleaning behind the hole being drilled, transfers steel reinforcement cage and pouring underwater concrete, after decentralization,
Hole depth, hole location, hole shape, aperture etc. are checked, after inspection, immediately carry out bottom hole cleaning, avoid every when it is too long so that
Mud sediment causes borehole collapse, for friction pile when hole wall is easy to collapse, it is desirable that sediment is thick before pouring underwater concrete
Degree is not more than 30cm and vertically hangs onto hole prefabricated steel reinforcement cage clearly after complete hole, to be fixed after positioning, then be used
Tremie concrete, concrete not interrupt when perfusion, pile breaking phenomenon otherwise easily occur；
S3, grooving is carried out by trench machine, digging is often grabbed in unit groove section to the design above 0.5m of slot bottom absolute altitude, when stop
It digs, it is clear when full slot reaches this absolute altitude, then from one end to the thin cleaning bottom of hole of grabbing of another end grab bucket, in the construction process, sampled every 2m
Once, label is put into slag specimen box, is formed field geology histogram, is compareed with design drawing, according to in-situ data, is adjusted in time
Arrangement and method for construction；
S4, pass through one section of underwater concrete of casting equipment in filling concrete slot, extracted by dreg-drawing pipe apart from water
Body refuse at 1~2m of lower concrete surface, while benefit slurry is carried out, it then continues to pour underwater concrete, promotes dreg-drawing pipe, so that taking out
Slag pipe always situated at 1~2m on the underwater concrete surface being gradually increasing until concreting finish；
S5, diaphram wall is first opened and puts 1m outside slot, link slot pilot hole, guaranteeing verticality tolerance amount and I-steel
In the case where outer side wing edge size, churning driven cleaning slot section joint bleeding cement and solidification sandbag, mount type are maximally utilized
Steel column, the two sides backfill dregs after column bottom casting concrete, concrete initial set, concrete final set after-pouring column inner concrete, then
Check that the top of slot section is fixed, this completes entire work.
Preferably, the trench machine in the S3 is using hydraulic grooving machine.
Preferably, the casting equipment in the S4 is using casting machine.
Preferably, the drilling device in the S5 is using percussive drill.
(3) beneficial effect
The present invention provides the construction methods of steel reinforced concrete column type connector and the joint continuous concrete wall.Having following has
Beneficial effect: this use the joint continuous concrete wall construction method, specifically includes the following steps: S1, slot section excavation before, along even
Continuous wall longitudinal axis position, which is constructed, leads wall, is poured using cast-in-place concrete or armored concrete, after slot section unwrapping wire, should be connected along underground
Continuous wall axis two sides, which are constructed, leads wall, and enough rigidity and bearing capacity will be had by leading wall, and the design strength grade of concrete is unsuitable
Lower than C20, leading wall bottom surface should not be arranged on recent fill, and buried depth is not preferably less than 1.5m；S2, it is bored by drilling device
Hole, when grabbing churn construction using impact type or punching, neighbouring soil layer influences the firm of adjacent hole because being shaken, behind the hole being drilled
Timely borehole cleaning is transferred steel reinforcement cage and pouring underwater concrete, after decentralization, is examined to hole depth, hole location, hole shape, aperture etc.
Look into, after inspection, carry out bottom hole cleaning immediately, avoid every when it is too long so that mud sediment, causes borehole collapse, for friction
Stake is when hole wall is easy to collapse, it is desirable that sediment thickness will be prefabricated clearly after complete hole no more than 30cm before pouring underwater concrete
Steel reinforcement cage vertically hang onto hole, to be fixed after positioning, then use tremie concrete, concrete should not when perfusion
It interrupts, pile breaking phenomenon otherwise easily occurs；S3, grooving is carried out by trench machine, digging is often grabbed in unit groove section to design slot bottom mark
The high above 0.5m, when stop digging, it is clear when full slot reaches this absolute altitude, then from one end to another end thin cleaning bottom of hole of grabbing of grabbing bucket, constructing
Cheng Zhong, primary every 2m sampling, label is put into slag specimen box, is formed field geology histogram, is compareed with design drawing, according to existing
Field data, adjusts arrangement and method for construction in time；S4, pass through one section of underwater concrete of casting equipment in filling concrete slot, pass through
Dreg-drawing pipe extracts the body refuse at 1~2m of underwater concrete face, while carrying out benefit slurry, then continues to pour underwater concrete,
Promote dreg-drawing pipe so that dreg-drawing pipe always situated in 1~2m on the underwater concrete surface being gradually increasing at up to concreting
It finishes；S5, diaphram wall is first opened and puts 1m outside slot, link slot pilot hole, guaranteed outside verticality tolerance amount and I-steel
In the case where side wing edge size, churning driven cleaning slot section joint bleeding cement and solidification sandbag are maximally utilized, fashioned iron is installed
Column, two sides backfill dregs, concrete final set after-pouring column inner concrete after column bottom casting concrete, concrete initial set, then examine
The top for looking into slot section is fixed, this completes entire work, by the processing of continuous wall section connector by existing connector
Pipe is changed to fashioned iron column joint, can effectively increase the overall structural strength of the diaphragm wall, improves construction efficiency, while protecting
On the basis of demonstrate,proving construction quality, the construction period is shortened, while for other junction blocks, antiseep effect is good, also gives
Staff alleviates certain working strength.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of steel column of the present invention.
In figure: 1- diaphragm wall ontology, 2- wall chase, 3- steel column.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the embodiment of the present invention provides a kind of technical solution: steel reinforced concrete column type connector, by continuous
Existing junction block is changed to fashioned iron column joint in the processing of wall wall section connector, the overall structure of the diaphragm wall can be effectively increased
Intensity improves construction efficiency, while on the basis of guaranteeing construction quality, shortening the construction period, while relative to other
For junction block, antiseep effect is good, also alleviates certain working strength, including diaphragm wall ontology 1, diaphragm wall to staff
The inside of ontology 1 offers wall chase 2, and the inside of wall chase 2 is fixedly connected with steel column 3.
Using the construction method of the joint continuous concrete wall, specifically includes the following steps:
S1, slot section excavation before, constructed along diaphragm wall longitudinal axis position and lead wall, using cast-in-place concrete or reinforced concrete
Soil pours, and after slot section unwrapping wire, should construct along diaphram wall axis two sides and lead wall, lead a kind of working measure that wall is unit in charge of construction
Mode will first construct before continuous wall trench underground and lead wall, and leading wall is to guarantee that diaphram wall position is accurate and the pass of grooving quality
Key leads the effect that wall often bears the static and dynamic loadings such as steel reinforcement cage, the conduit of pour concrete, drilling machine in construction period, thus must
Conscientiously it must design and construct, just can be carried out the formal construction of diaphram wall, enough rigidity and bearing capacity will be had by leading wall,
The design strength grade of concrete not preferably less than C20, leading wall bottom surface should not be arranged on recent fill, and buried depth is not preferably less than
1.5m；
S2, it is drilled by drilling device, when grabbing churn construction using impact type or punching, neighbouring soil layer is because being shaken
Dynamic and the adjacent hole of influence firm, timely borehole cleaning behind the hole being drilled, transfers steel reinforcement cage and pouring underwater concrete, steel reinforcement cage mainly rise
Effect with the stress of pillar longitudinal reinforcement be similarly, mainly to play drawing-resistant function, the compression strength of concrete is high but tensile strength
Be it is very low, play the role of constraint to pile concrete, make it to bear certain horizontal force, after decentralization, to hole depth, hole
Position, hole shape, aperture etc. are checked, after inspection, carry out bottom hole cleaning immediately, avoid every when it is too long so that mud sediment,
Cause borehole collapse, for friction pile when hole wall is easy to collapse, it is desirable that sediment thickness is not more than before pouring underwater concrete
Prefabricated steel reinforcement cage is vertically hung onto hole clearly after complete hole, to be fixed after positioning, then use catheter perfusion by 30cm
Concrete, concrete not interrupt when perfusion, pile breaking phenomenon otherwise easily occur；
S3, grooving is carried out by trench machine, digging is often grabbed in unit groove section to the design above 0.5m of slot bottom absolute altitude, when stop
It digs, it is clear when full slot reaches this absolute altitude, then from one end to the thin cleaning bottom of hole of grabbing of another end grab bucket, in the construction process, sampled every 2m
Once, label is put into slag specimen box, is formed field geology histogram, is compareed with design drawing, according to in-situ data, is adjusted in time
Arrangement and method for construction；
S4, pass through one section of underwater concrete of casting equipment in filling concrete slot, extracted by dreg-drawing pipe apart from water
Body refuse at 1~2m of lower concrete surface, while benefit slurry is carried out, it then continues to pour underwater concrete, promotes dreg-drawing pipe, so that taking out
Slag pipe always situated at 1~2m on the underwater concrete surface being gradually increasing until concreting finish；
S5, diaphram wall is first opened and puts 1m outside slot, link slot pilot hole, guaranteeing verticality tolerance amount and I-steel
In the case where outer side wing edge size, churning driven cleaning slot section joint bleeding cement and solidification sandbag, mount type are maximally utilized
Steel column, the two sides backfill dregs after column bottom casting concrete, concrete initial set, concrete final set after-pouring column inner concrete, then
Check that the top of slot section is fixed, this completes entire work.
In the present invention, the trench machine in S3 is using hydraulic grooving machine.
In the present invention, the casting equipment in S4 is using casting machine.
In the present invention, the drilling device in S5 is using percussive drill.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. the inside of steel reinforced concrete column type connector, including diaphragm wall ontology (1), the diaphragm wall ontology (1) offers wall chase
(2), it is characterised in that: the inside of the wall chase (2) is fixedly connected with steel column (3).
2. using the construction method of the joint continuous concrete wall, it is characterised in that: specifically includes the following steps:
S1, slot section excavation before, constructed along diaphragm wall longitudinal axis position and lead wall, poured using cast-in-place concrete or armored concrete
It builds, after slot section unwrapping wire, should be constructed along diaphram wall axis two sides and lead wall, enough rigidity and bearing capacity will be had by leading wall,
The design strength grade of concrete not preferably less than C20, leading wall bottom surface should not be arranged on recent fill, and buried depth is not preferably less than
1.5m；
S2, it is drilled by drilling device, when grabbing churn construction using impact type or punching, neighbouring soil layer is due to being shaken
The firm of adjacent hole is influenced, timely borehole cleaning behind the hole being drilled transfers steel reinforcement cage and pouring underwater concrete, after decentralization, device to hole
Depth, hole location, hole shape, aperture etc. are checked, after inspection, immediately carry out bottom hole cleaning, avoid every when it is too long so that mud
Precipitating, causes borehole collapse, for friction pile when hole wall is easy to collapse, it is desirable that sediment thickness is not before pouring underwater concrete
Greater than 30cm, after clear complete hole, prefabricated steel reinforcement cage is vertically hung onto hole, to be fixed after positioning, then use conduit
Concrete perfusion, concrete not interrupt when perfusion, pile breaking phenomenon otherwise easily occur；
S3, grooving is carried out by trench machine, digging is often grabbed in unit groove section to the design above 0.5m of slot bottom absolute altitude, when stop digging, to
When full slot reaches this absolute altitude, then it is clear from one end to the thin cleaning bottom of hole of grabbing of another end grab bucket, it is in the construction process, primary every 2m sampling,
Label is put into slag specimen box, is formed field geology histogram, is compareed with design drawing, according to in-situ data, in time adjustment construction
Scheme；
S4, pass through one section of underwater concrete of casting equipment in filling concrete slot, it is underwater mixed to extract distance by dreg-drawing pipe
Body refuse at solidifying soil 1~2m of face, while benefit slurry is carried out, it then continues to pour underwater concrete, dreg-drawing pipe is promoted, so that dreg-drawing pipe
Always situated at 1~2m on the underwater concrete surface being gradually increasing until concreting finish；
S5, diaphram wall is first opened and puts 1m outside slot, link slot pilot hole, guaranteed on the outside of verticality tolerance amount and I-steel
In the case where flange dimensions, churning driven cleaning slot section joint bleeding cement and solidification sandbag are maximally utilized, steel column is installed,
Two sides backfill dregs after column bottom casting concrete, concrete initial set, and concrete final set after-pouring column inner concrete reexamines slot
The top of section is fixed, and this completes entire work.
3. steel reinforced concrete column type connector according to claim 1, it is characterised in that: the trench machine in the S3 uses
Be hydraulic grooving machine.
4. steel reinforced concrete column type connector according to claim 1, it is characterised in that: the casting equipment in the S4 uses
Be casting machine.
5. steel reinforced concrete column type connector according to claim 1, it is characterised in that: the drilling device in the S5 uses
Be percussive drill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910605738.3A CN110306533A (en) | 2019-07-05 | 2019-07-05 | The construction method of steel reinforced concrete column type connector and the joint continuous concrete wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910605738.3A CN110306533A (en) | 2019-07-05 | 2019-07-05 | The construction method of steel reinforced concrete column type connector and the joint continuous concrete wall |
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| CN110306533A true CN110306533A (en) | 2019-10-08 |
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| CN201910605738.3A Pending CN110306533A (en) | 2019-07-05 | 2019-07-05 | The construction method of steel reinforced concrete column type connector and the joint continuous concrete wall |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113684818A (en) * | 2021-09-03 | 2021-11-23 | 中铁四局集团第五工程有限公司 | Low-clearance ground wall-connected internal steel column and mounting method thereof |
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| CN102561404A (en) * | 2012-03-16 | 2012-07-11 | 中建八局第三建设有限公司 | Steel reinforced concrete column type joint and construction method of underground diaphragm wall using same |
| CN202466644U (en) * | 2012-03-16 | 2012-10-03 | 中建八局第三建设有限公司 | Profile steel concrete column type connector |
| CN202945618U (en) * | 2012-07-25 | 2013-05-22 | 江苏华东地质建设集团有限公司 | Steel plate column joint of underground diaphragm wall |
| JP5819278B2 (en) * | 2012-11-21 | 2015-11-24 | 鹿島建設株式会社 | Continuous wall member, continuous wall construction method |
| CN205012369U (en) * | 2015-06-29 | 2016-02-03 | 中铁十四局集团有限公司 | Grid ground is wall joint structure even |
| CN207277319U (en) * | 2017-10-18 | 2018-04-27 | 太原理工大学 | Diaphram wall is prevented streaming, water-impervious I-shaped steel joint structure |
| CN108532586A (en) * | 2018-04-04 | 2018-09-14 | 浙江派科停车系统有限公司 | A kind of construction method of garage parking diaphram wall |
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2019
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202131618U (en) * | 2011-06-13 | 2012-02-01 | 华南理工大学 | Seepage-prevention joint device for underground diaphragm wall |
| CN102561404A (en) * | 2012-03-16 | 2012-07-11 | 中建八局第三建设有限公司 | Steel reinforced concrete column type joint and construction method of underground diaphragm wall using same |
| CN202466644U (en) * | 2012-03-16 | 2012-10-03 | 中建八局第三建设有限公司 | Profile steel concrete column type connector |
| CN202945618U (en) * | 2012-07-25 | 2013-05-22 | 江苏华东地质建设集团有限公司 | Steel plate column joint of underground diaphragm wall |
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| CN205012369U (en) * | 2015-06-29 | 2016-02-03 | 中铁十四局集团有限公司 | Grid ground is wall joint structure even |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113684818A (en) * | 2021-09-03 | 2021-11-23 | 中铁四局集团第五工程有限公司 | Low-clearance ground wall-connected internal steel column and mounting method thereof |
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