CN110424488A - A kind of construction method of diaphram wall - Google Patents
A kind of construction method of diaphram wall Download PDFInfo
- Publication number
- CN110424488A CN110424488A CN201910631737.6A CN201910631737A CN110424488A CN 110424488 A CN110424488 A CN 110424488A CN 201910631737 A CN201910631737 A CN 201910631737A CN 110424488 A CN110424488 A CN 110424488A
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- CN
- China
- Prior art keywords
- wall
- hole
- diaphragm wall
- diaphram
- diaphragm
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
Abstract
The invention discloses a kind of construction methods of diaphram wall, specifically includes the following steps: S1, by trench machine carrying out grooving, after grooving, it needs to be purged by mud and residue of the cleaning equipment to slot bottom, prefabricated prestressed underground continuous wall component is transferred to mixed in the geosyncline of clay hardening agent by lifting appliance, it transfers in prefabricated prestressed underground continuous wall building course, mud containing clay hardening agent enters in the hollow via-hole of wall, the mud of argillaceous curing agent is full of in hollow via-hole, the present invention relates to Diaphragm Wall fields.The construction method of the diaphram wall, it can be achieved to increase the tight type connected between two neighboring diaphram wall, maintain the integral strength of the diaphragm wall, and substantially increase its antiseep effect, reduce some potential safety problems, construction is simple is realized under the basis for guaranteeing construction quality and shortens the purpose of construction period, meets actual construction needs.
Description
Technical field
The present invention relates to Diaphragm Wall field, specially a kind of construction method of diaphram 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.
Joint bonding strength there are two now between diaphram wall is inadequate, and is easy to produce certain gap, thus
So that the diaphragm wall is easy to appear leakage phenomenon in the subsequent use process, while resistance to compression reinforcing is ineffective, is easy to make
At certain construction hidden danger, the practicability of the diaphragm wall is greatly reduced,
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of construction methods of diaphram wall, solve existing two
Joint bonding strength between a diaphram wall is inadequate, and is easy to appear leakage phenomenon and resistance to compression reinforcing is ineffective
The problem of.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of construction party of diaphram wall
Method, specifically includes the following steps:
S1, grooving is carried out by trench machine, after grooving, needs the mud and residue by cleaning equipment to slot bottom
It is purged, is transferred prefabricated prestressed underground continuous wall component to mixed with the geosyncline of clay hardening agent by lifting appliance
In, it transfers in prefabricated prestressed underground continuous wall building course, the mud containing clay hardening agent enters the hollow via-hole of wall
In, it is full of the mud of argillaceous curing agent in hollow via-hole, can be used as the permanent filler in hollow via-hole after slurry curing,
Next prefabricated prestressed underground continuous wall component is lifted by crane by lifting appliance again, will be inserted between two adjacent connection wall members
Enter steel reinforcement cage and steel column, and pass through placing installation casting concrete wherein, is tied between concrete curing rear formation wall member
It is fit；
The position of S2, the position for positioning preparation joint and connector reserved steel bar, and lift and install in two sides, binding connector is pre-
Reinforcing bar is stayed, it is made to form reinforced mesh with wall reserved steel bar, the casting concrete between two preparation joints forms and is located at top
Cast-in-place diaphragm wall；
S3, the assembled work for completing the prefabricated diaphragm wall in first segment slot section hang in first piece continuously in slot section first
Wall unit, fixes, and then in vertical direction, hangs in second piece of diaphragm wall unit, on horizontal contact face, passes through preset hole
Hole and embedded bar make two sections of diaphragm wall unit mountings, and keep the two fixed by casing；In order to guarantee the waterproof of contact surface, In
It is provided with steel plate composite water-stop item at contact surface, then hangs in third block diaphragm wall unit, passes through hole, embedded bar, sealing
Item completes assembled work；
S4, first concrete cushion is broken with drill bit and pore-forming is to 8m hole depth, hole depth is less than the height of steel pipe, and steel pipe is made
Then 12m long hangs in steel pipe access aperture and transfers to the bottom hole i.e. position 8m, revealed section 4m is pushed using drill power head, pressure
Drilling soil digging is carried out out of steel pipe using drill bit after motionless, then proceedes to push, until steel pipe is transferred to designed elevation；
S5, it completes in the first slot section after diaphram wall, in reserved capillary groove, installation expansion water-proof strip excavates the
Two sections of slot sections hang in first piece of prefabricated continuous wall element in the slot section, by the yin-yang interface of diaphragm wall unit two sides, with
The mounting of first piece hangs in first slot section diaphragm wall unit is in place, the anti-slurry item of expansion by the way that joint is arranged in make the two at
It is integrated, then lifts subsequent prefabricated diaphragm wall, complete the assembly of diaphragm wall in the second slot section, in the same way, by
It constructs fastly remaining wall element, until completing all assembled work.
Preferably, the trench machine in the S1 is using hydraulic grab machine.
Preferably, the cleaning equipment in the S1 is using chute forming machine.
Preferably, the bit diameter in the S4 is 1.5m.
Preferably, the lifting appliance in the S1 is using crane.
(3) beneficial effect
The present invention provides a kind of construction methods of diaphram wall.Have following the utility model has the advantages that the diaphram wall
Construction method carries out grooving by S1, by trench machine, after grooving, needs the mud by cleaning equipment to slot bottom
It is purged with residue, is transferred prefabricated prestressed underground continuous wall component to mixed with clay hardening agent by lifting appliance
In geosyncline, transfer in prefabricated prestressed underground continuous wall building course, the mud containing clay hardening agent enters the hollow of wall
In through-hole, it is full of the mud of argillaceous curing agent in hollow via-hole, can be used as permanently filling out in hollow via-hole after slurry curing
Object is filled, then next prefabricated prestressed underground continuous wall component is lifted by crane by lifting appliance, by two adjacent connection wall members
Between be inserted into steel reinforcement cage and steel column, and wall structure is formed after concrete curing by placing installation casting concrete wherein
Combination between part；The position of S2, the position for positioning preparation joint and connector reserved steel bar, and lift and install in two sides, binding connects
Head reserved steel bar, makes it form reinforced mesh, the casting concrete between two preparation joints with wall reserved steel bar, and formation is located at
The cast-in-place diaphragm wall on top；S3, the assembled of prefabricated diaphragm wall completed in first segment slot section work, and in slot section, hang in first
First piece of diaphragm wall unit, fixes, and then in vertical direction, hangs in second piece of diaphragm wall unit, on horizontal contact face, leads to
Crossing preset hole and embedded bar makes two sections of diaphragm wall unit mountings, and keeps the two fixed by casing；In order to guarantee to contact
The waterproof in face is provided with steel plate composite water-stop item at contact surface, then hangs in third block diaphragm wall unit, by hole, in advance
Bury reinforcing bar, sealing rod completes assembled work；S4, first with drill bit by concrete cushion break and pore-forming to 8m hole depth, hole depth is less than
12m long is made in the height of steel pipe, steel pipe, then hangs in steel pipe access aperture and transfers to the bottom hole i.e. position 8m, revealed section 4m is adopted
It is pushed with drill power head, drilling soil digging is carried out out of steel pipe using drill bit after pressure is motionless, then proceedes to push, until under steel pipe
It puts to designed elevation；S5, it completes in the first slot section after diaphram wall, in reserved capillary groove, installation expansion water-proof strip is opened
Second segment slot section is dug, first piece of prefabricated continuous wall element in the slot section is hung in, is connect by the yin-yang of diaphragm wall unit two sides
Mouthful, in place with first piece in the first slot section diaphragm wall unit hung in mounting, the anti-slurry item of expansion by the way that joint is arranged in makes
The two is integrally formed, and then lifts subsequent prefabricated diaphragm wall, is completed the assembly of diaphragm wall in the second slot section, is passed through identical side
Formula, by remaining wall element of constructing fastly, until complete all assembled work, it can be achieved that increase two neighboring diaphram wall it
Between the tight type that connects, maintain the integral strength of the diaphragm wall, and substantially increase its antiseep effect, reduce certain
Security risk, construction is simple is realized under the basis for guaranteeing construction quality and shortens the purpose of construction period, is met real
The construction on border needs.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
The embodiment of the present invention provides a kind of technical solution: a kind of construction method of diaphram wall is, it can be achieved that increase phase
The tight type connected between adjacent two diaphram walls, maintains the integral strength of the diaphragm wall, and substantially increases the anti-of it
Effect is leaked, some potential safety problems is reduced, construction is simple is realized under the basis for guaranteeing construction quality and is shortened and is applied
The purpose of work duration meets actual construction needs, specifically includes the following steps:
S1, grooving is carried out by trench machine, after grooving, needs the mud and residue by cleaning equipment to slot bottom
It is purged, is transferred prefabricated prestressed underground continuous wall component to mixed with the geosyncline of clay hardening agent by lifting appliance
In, it transfers in prefabricated prestressed underground continuous wall building course, the mud containing clay hardening agent enters the hollow via-hole of wall
In, it is full of the mud of argillaceous curing agent in hollow via-hole, can be used as the permanent filler in hollow via-hole after slurry curing,
Next prefabricated prestressed underground continuous wall component is lifted by crane by lifting appliance again, will be inserted between two adjacent connection wall members
Enter steel reinforcement cage and steel column, steel reinforcement cage primarily function is similarly, mainly to play tension and make with the stress of pillar longitudinal reinforcement
With the compression strength of, concrete, high but tensile strength is very low, plays the role of constraint to pile concrete, makes it receiving one
Fixed horizontal force, and combination between wall member is formed after concrete curing by placing installation casting concrete wherein；
The position of S2, the position for positioning preparation joint and connector reserved steel bar, and lift and install in two sides, binding connector is pre-
Reinforcing bar is stayed, it is made to form reinforced mesh with wall reserved steel bar, the casting concrete between two preparation joints forms and is located at top
Cast-in-place diaphragm wall；
S3, the assembled work for completing the prefabricated diaphragm wall in first segment slot section hang in first piece continuously in slot section first
Wall unit, fixes, and then in vertical direction, hangs in second piece of diaphragm wall unit, on horizontal contact face, passes through preset hole
Hole and embedded bar make two sections of diaphragm wall unit mountings, and keep the two fixed by casing, in order to guarantee the waterproof of contact surface, In
Steel plate composite water-stop item is provided at contact surface, sealing rod is formed by the inorganic water uptake expansion material of macromolecule and compounding rubber
, it is that the block coagulations such as engineering, hydraulic engineering, traffic tunnel engineering, power plant cooling tower, municipal plumbing are constructed in various hypogees
Then the material of the geotechnological anti-leak-stopping of journey construction joint hangs in third block diaphragm wall unit, complete by hole, embedded bar, sealing rod
It works at assembly；
S4, first concrete cushion is broken with drill bit and pore-forming is to 8m hole depth, hole depth is less than the height of steel pipe, and steel pipe is made
Then 12m long hangs in steel pipe access aperture and transfers to the bottom hole i.e. position 8m, revealed section 4m is pushed using drill power head, pressure
Drilling soil digging is carried out out of steel pipe using drill bit after motionless, then proceedes to push, until steel pipe is transferred to designed elevation；
S5, it completes in the first slot section after diaphram wall, in reserved capillary groove, installation expansion water-proof strip excavates the
Two sections of slot sections hang in first piece of prefabricated continuous wall element in the slot section, by the yin-yang interface of diaphragm wall unit two sides, with
The mounting of first piece hangs in first slot section diaphragm wall unit is in place, the anti-slurry item of expansion by the way that joint is arranged in make the two at
It is integrated, then lifts subsequent prefabricated diaphragm wall, complete the assembly of diaphragm wall in the second slot section, in the same way, by
It constructs fastly remaining wall element, until completing all assembled work.
In the present invention, the trench machine in S1 is using hydraulic grab machine.
In the present invention, the cleaning equipment in S1 is using chute forming machine.
In the present invention, the bit diameter in S4 is 1.5m.
In the present invention, the lifting appliance in S1 is using crane.
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. a kind of construction method of diaphram wall, it is characterised in that: specifically includes the following steps:
S1, grooving is carried out by trench machine, after grooving, needs to carry out by mud and residue of the cleaning equipment to slot bottom
It removes, is transferred prefabricated prestressed underground continuous wall component to mixed in the geosyncline of clay hardening agent by lifting appliance, under
It puts in prefabricated prestressed underground continuous wall building course, the mud containing clay hardening agent enters in the hollow via-hole of wall, in
It is full of the mud of argillaceous curing agent in empty through-hole, can be used as the permanent filler in hollow via-hole after slurry curing, then lead to
It crosses lifting appliance and lifts by crane next prefabricated prestressed underground continuous wall component, steel will be inserted between two adjacent connection wall members
Muscle cage and steel column, and combination between wall member is formed after concrete curing by placing installation casting concrete wherein；
The position of S2, the position for positioning preparation joint and connector reserved steel bar, and lift and install in two sides, binding connector reserves steel
Muscle, makes it form reinforced mesh with wall reserved steel bar, and the casting concrete between two preparation joints is formed superposed existing
Pour diaphragm wall；
S3, the assembled of prefabricated diaphragm wall completed in first segment slot section work, and in slot section, hang in first piece of diaphragm wall list first
Member fixes, and then in vertical direction, hangs in second piece of diaphragm wall unit, on horizontal contact face, by preset hole and
Embedded bar makes two sections of diaphragm wall unit mountings, and keeps the two fixed by casing；In order to guarantee the waterproof of contact surface, contacting
It is provided with steel plate composite water-stop item at face, then hangs in third block diaphragm wall unit, it is complete by hole, embedded bar, sealing rod
It works at assembly；
S4, first concrete cushion is broken with drill bit and pore-forming is to 8m hole depth, hole depth is less than the height of steel pipe, and 12m is made in steel pipe
It is long, it then hangs in steel pipe access aperture and transfers to the bottom hole i.e. position 8m, revealed section 4m is pushed using drill power head, is pressed motionless
Drilling soil digging is carried out out of steel pipe using drill bit afterwards, then proceedes to push, until steel pipe is transferred to designed elevation；
S5, it completes in the first slot section after diaphram wall, in reserved capillary groove, installation expansion water-proof strip excavates second segment
Slot section hangs in first piece of prefabricated continuous wall element in the slot section, by the yin-yang interface of diaphragm wall unit two sides, with first
The diaphragm wall unit mounting that first piece hangs in slot section is in place, and the anti-slurry item of expansion by the way that joint is arranged in makes the two become one
Body, then lifts subsequent prefabricated diaphragm wall, completes the assembly of diaphragm wall in the second slot section, in the same way, by applying fastly
Remaining wall element of work, until completing all assembled work.
2. a kind of construction method of diaphram wall according to claim 1, it is characterised in that: the groover in the S1
Tool is using hydraulic grab machine.
3. a kind of construction method of diaphram wall according to claim 1, it is characterised in that: the cleaning in the S1 is set
For using chute forming machine.
4. a kind of construction method of diaphram wall according to claim 1, it is characterised in that: the drill bit in the S4 is straight
Diameter is 1.5m.
5. a kind of construction method of diaphram wall according to claim 1, it is characterised in that: the lifting in the S1 is set
For using crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910631737.6A CN110424488A (en) | 2019-07-12 | 2019-07-12 | A kind of construction method of diaphram wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910631737.6A CN110424488A (en) | 2019-07-12 | 2019-07-12 | A kind of construction method of diaphram wall |
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| Publication Number | Publication Date |
|---|---|
| CN110424488A true CN110424488A (en) | 2019-11-08 |
Family
ID=68409351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910631737.6A Withdrawn CN110424488A (en) | 2019-07-12 | 2019-07-12 | A kind of construction method of diaphram wall |
Country Status (1)
| Country | Link |
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| CN (1) | CN110424488A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115142400A (en) * | 2022-08-03 | 2022-10-04 | 南京航空航天大学 | Underground continuous wall groove wall stabilizing device and construction method |
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| CN101319498A (en) * | 2008-07-17 | 2008-12-10 | 万勇 | Lattice type prefabricated prestressed underground continuous wall and its construction method |
| CN108193667A (en) * | 2018-01-09 | 2018-06-22 | 上海应用技术大学 | A kind of water proof type spelling dress list three Room thin wall-type continuous underground wall structure of case and construction method |
| CN108221959A (en) * | 2018-01-09 | 2018-06-29 | 上海应用技术大学 | Vertical spliced diaphram wall and its construction method |
| CN108625356A (en) * | 2018-05-07 | 2018-10-09 | 河南城建学院 | A kind of prefabricated prestressed underground continuous wall and its construction method |
| CN108677925A (en) * | 2018-07-01 | 2018-10-19 | 沈阳建筑大学 | Half coercion underground continuous wall structure and its construction method |
| CN109723055A (en) * | 2019-01-21 | 2019-05-07 | 北京建工四建工程建设有限公司 | A kind of diaphram wall bottom ruggedized construction and its construction method |
-
2019
- 2019-07-12 CN CN201910631737.6A patent/CN110424488A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319498A (en) * | 2008-07-17 | 2008-12-10 | 万勇 | Lattice type prefabricated prestressed underground continuous wall and its construction method |
| CN108193667A (en) * | 2018-01-09 | 2018-06-22 | 上海应用技术大学 | A kind of water proof type spelling dress list three Room thin wall-type continuous underground wall structure of case and construction method |
| CN108221959A (en) * | 2018-01-09 | 2018-06-29 | 上海应用技术大学 | Vertical spliced diaphram wall and its construction method |
| CN108625356A (en) * | 2018-05-07 | 2018-10-09 | 河南城建学院 | A kind of prefabricated prestressed underground continuous wall and its construction method |
| CN108677925A (en) * | 2018-07-01 | 2018-10-19 | 沈阳建筑大学 | Half coercion underground continuous wall structure and its construction method |
| CN109723055A (en) * | 2019-01-21 | 2019-05-07 | 北京建工四建工程建设有限公司 | A kind of diaphram wall bottom ruggedized construction and its construction method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115142400A (en) * | 2022-08-03 | 2022-10-04 | 南京航空航天大学 | Underground continuous wall groove wall stabilizing device and construction method |
| CN115142400B (en) * | 2022-08-03 | 2023-03-28 | 南京航空航天大学 | Underground continuous wall groove wall stabilizing device and construction method |
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Application publication date: 20191108 |