CN107447747A - A kind of coercion underground continuous wall and its construction method - Google Patents
A kind of coercion underground continuous wall and its construction method Download PDFInfo
- Publication number
- CN107447747A CN107447747A CN201710518788.9A CN201710518788A CN107447747A CN 107447747 A CN107447747 A CN 107447747A CN 201710518788 A CN201710518788 A CN 201710518788A CN 107447747 A CN107447747 A CN 107447747A
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- prefabricated panel
- reinforcing bar
- connection reinforcing
- wall
- underground continuous
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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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
- E02D19/185—Joints between sheets constituting the sealing aprons
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The present invention relates to a kind of coercion underground continuous wall, including the prefabricated panel that several piece is connected with each other, the forward and backward face of the prefabricated panel is embedded with Grouting Pipe, and connection reinforcing bar is reserved in prefabricated panel, sealing rod is embedded with the assembling seam of prefabricated panel.The connection reinforcing bar length of the prefabricated panel is alternate, the end of longer connection reinforcing bar is provided with reinforced bar jointing sleeve, it is attached between neighbouring prefabricated panel in same phase wall by reserved steel bar, wherein longer connection reinforcing bar is attached with corresponding short connection reinforcing bar by reinforced bar jointing sleeve.Preferably, the side of the prefabricated panel is set fluted, and another survey is installed with the tenon matched with the groove shapes, and adjacent two phases wallboard is engaged by groove with tenon.The stress loss of the neighbouring soil body is compensated after diaphram wall assembly by the slip casting of wall side, Grouting Pipe slip casting secondary grouting, so as to effectively control the soil deformation during construction of diaphragm wall.Avoid the influence to close to buildings around.
Description
Technical field
The present invention relates to coercion underground continuous wall and its precast construction method, belongs to underground continuous wall construction technique field.
Background technology
Diaphram wall has the characteristics of big rigidity of structure, globality, impermeability and good endurance, can be used as permanent
Retaining soil and water and load-carrying members.Coercion underground continuous wall can continuously hang wall section after grooving, and without maintenance, it is constructed
Speed not only far faster than cast-in-place subterranean wall, also reduces the unstability of cell wall, and can thoroughly eradicate joint and add mud, wall
Add the common quality defects such as sand, leakage muscle, loose, bulge, quicksand, thus be widely applied.
Existing coercion underground continuous wall is in assembling, due to structure between the connector portions of adjacent coercion underground continuous wall
Leakage problems often occur in reason.To reduce the surrounding soil deformation caused by coercion underground continuous wall construction, current applies
Work technique enriches space by slurries deadweight and reaches control usually using being in the milk to the space between outer wall and slot wall
The purpose of soil deformation processed.Following two deficiencies be present in this technique：Slurries deadweight is relied solely on to tamp space and can not often return
Benefit stress loss caused by because of soil disturbance, thus the purpose of effectively control soil deformation can not be reached；In addition, the technique
The quality of slip casting can not effectively be controlled.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of coercion underground continuous wall, can reduce prefabricated underground and connect
Surrounding soil deformation caused by continuous wall construction.
In order to solve the above problems, the technical solution adopted in the present invention is as follows：
A kind of coercion underground continuous wall, including the prefabricated panel that several piece is connected with each other, the forward and backward face of the prefabricated panel are pre-
Grouting Pipe is embedded with, connection reinforcing bar is reserved in prefabricated panel, sealing rod is embedded with the assembling seam of prefabricated panel.
Further improve is that the connection reinforcing bar length in the prefabricated panel is alternate, and the end of longer connection reinforcing bar is set
There is reinforced bar jointing sleeve, longer connection reinforcing bar is attached with corresponding short connection reinforcing bar by reinforced bar jointing sleeve.
Further, vertical and horizontal of the Grouting Pipe along prefabricated panel metope are uniformly distributed.
Further, the side of the prefabricated panel is set fluted, and opposite side is installed with what is matched with the groove shapes
Tenon, it is engaged to form mortise-tenon joint with tenon by groove between adjacent two phases wallboard.
The coercion underground continuous wall of the present invention, because the forward and backward face in prefabricated panel is embedded with Grouting Pipe, is easy in wallboard
After assembling, secondary grouting is carried out between wall and the soil body by Grouting Pipe；The sealing rod set in assembling seam, Neng Goufang
Only soil deformation caused by soil erosion；Prefabricated panel connects reinforced bar jointing sleeve at the top of long connection reinforcing bar, is connected by reinforcing bar
Female connector and the connection reinforcing bar of upper and lower wallboard closely connect, and can make the connection reinforcing bar of the whole wall of diaphram wall after assembling
With certain pretension；Vertical and horizontal of the Grouting Pipe along prefabricated panel metope are uniformly distributed when can make slip casting grout distribution more
Add uniformly；Mortise-tenon joint between adjacent wall board can reduce the seepage of connection.
The construction method of above-mentioned coercion underground continuous wall, comprises the following steps：
S1, using mud to groove carry out retaining wall；
S2, prefabricated panel is put into groove according to axial location piecemeal, adjacent two phases prefabricated panel is attached,
Sealing rod is embedded in the assembling seam of prefabricated panel, connects the reserved connection reinforcing bar of prefabricated panel, and profit up and down in same phase wall
With the Grouting Pipe of sleeve pipe connection relevant position；
After S3, coercion underground continuous wall assembling, grouting liquid is poured to the space on the outside of precast wall body between slot wall,
Conducted oneself with dignity filling space by slurries, while with the space of connecting portion between the contiguous prefabricated wallboard of concrete casting；
S4, etc. step S3 slurries set strength reach requirement after, clear and coherent pre-buried Grouting Pipe, then carry out secondary injection
Slurry, first low-pressure grouting, ensures that slurries are uniformly distributed in wall side, then carries out high-pressure slip-casting, is completed after grout cures pre-
The construction of subterranean wall processed.
Further, the connection reinforcing bar length in the prefabricated panel is alternate, and the end of longer connection reinforcing bar connects provided with reinforcing bar
Female connector, in step s 2, longer connection reinforcing bar are attached with corresponding short connection reinforcing bar by reinforced bar jointing sleeve.
The side setting of the prefabricated panel is fluted, and opposite side is installed with the tenon matched with the groove shapes,
In step S2, it is engaged to form mortise-tenon joint with tenon by groove between adjacent two phases wallboard.
Further, vertical and horizontal of the Grouting Pipe along prefabricated panel metope are uniformly distributed.
Compared with prior art, the beneficial effects of the present invention are：
1st, grouting liquid is poured in the space of connecting portion between slot wall, between contiguous prefabricated wallboard on the outside of to prefabricated panel,
After reaching slurries initial set, grouting behind shaft or drift lining (secondary grouting) technique is carried out between wall and the soil body by Grouting Pipe, is further passed through
Grouting pressure can compensate for the resistance to shear of soil caused by excavation and relax.Pass through slip casting first and organic knot of secondary grouting technique
Close, so as to largely reduce surrounding soil deformation.
2nd, when coercion underground continuous wall assembles, the use of reinforced bar jointing sleeve, the connection reinforcing bar of the whole wall after assembling is made
With certain pretension, the interior sealing rod set can be not only compressed, the wall that can also effectively reduce under soil pressure effect becomes
Shape.
3rd, the sealing rod set in the assembling seam of coercion underground continuous wall, prevent erosion caused soil deformation.
4th, construction method efficiency of construction of the invention is high, and deformation of wall is small, and water-stagnating effect is good, can control soil deformation
In millimetre-sized scope, it can avoid because construction of diaphragm wall is to around adjacent to the influence of important construction of structures.
Brief description of the drawings
Fig. 1 is the structural representation of a preferred embodiment of single prefabricated panel in coercion underground continuous wall of the present invention.
Fig. 2 is the top view of a preferred embodiment of single prefabricated panel in coercion underground continuous wall of the present invention.
In figure：1 is prefabricated panel；1a is the cavity of prefabricated panel；1b is the floor of prefabricated panel；2 be Grouting Pipe；3 are
Connect reinforcing bar；4 be sealing rod；5 be reinforced bar jointing sleeve；6 be groove；7 be tenon.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.According to following explanation, sheet
The purpose, technical scheme and advantage of invention will be apparent from.It should be noted that described embodiment is the preferred of the present invention
Embodiment, rather than whole embodiments.
With reference to shown in Fig. 1 and Fig. 2, a kind of coercion underground continuous wall, including the prefabricated panel 1 that several piece is connected with each other, it is described
The side of prefabricated panel sets fluted 6, and opposite side is installed with the tenon 7 matched with the groove shapes, adjacent two phases wallboard
Between be engaged to form mortise-tenon joint with tenon by groove.The forward and backward face of the prefabricated panel is embedded with Grouting Pipe 2, is easy to
After wallboard assembles, secondary grouting is carried out between wall and the soil body by Grouting Pipe.In order to ensure that slip casting is evenly distributed,
The Grouting Pipe is preferably uniformly distributed along the vertical and horizontal of prefabricated panel metope.Connection reinforcing bar 3 is reserved in prefabricated panel, it is prefabricated
Sealing rod 4 is embedded with the assembling seam of wallboard, can prevent erosion caused soil deformation.
Connection reinforcing bar length in the prefabricated panel is alternate, and the end of longer connection reinforcing bar is provided with reinforced bar jointing sleeve 5, compared with
Long connection reinforcing bar is attached with corresponding short connection reinforcing bar by reinforced bar jointing sleeve, can make the diaphram wall after assembling
The connection reinforcing bar of whole wall has certain pretension.
The construction method of above-mentioned coercion underground continuous wall, comprises the following steps：
S1, using mud to groove carry out retaining wall；
S2, prefabricated panel 1 is put into groove according to axial location piecemeal, adjacent two phases prefabricated panel is attached,
Sealing rod 4 is embedded in the assembling seam of prefabricated panel, connects the connection reinforcing bar that prefabricated panel is reserved up and down in same phase wall, and
Utilize the Grouting Pipe 2 of sleeve pipe connection relevant position；
After S3, coercion underground continuous wall assembling, grouting liquid is poured to the space on the outside of precast wall body between slot wall,
Conducted oneself with dignity filling space by slurries, while with the space of connecting portion between the contiguous prefabricated wallboard of concrete casting；
S4, etc. step S3 slurries set strength reach requirement after, clear and coherent pre-buried Grouting Pipe 2, then carry out secondary
Slip casting, first low-pressure grouting, ensure that slurries are uniformly distributed in wall side, then according to pressure requirements and change into horizontal high voltage note
Starch, the construction of prefabricated subterranean wall is completed after grout cures.
Preferably, the connection reinforcing bar length in the prefabricated panel is alternate, the end of longer connection reinforcing bar is provided with reinforcing bar
Adapter sleeve 5, in step s 2, longer connection reinforcing bar are attached with corresponding short connection reinforcing bar by reinforced bar jointing sleeve.
Preferably, the side of the prefabricated panel sets fluted 6, and opposite side is installed with and the groove shapes
The tenon 7 of matching, in step s 2, it is engaged to form mortise-tenon joint with tenon by groove between adjacent two phases wallboard.
The construction method of the present invention is compensated by slip casting first and the combination of secondary grouting technique by grouting pressure
Because because of soil disturbance and caused by stress loss structure.So as to largely reduce surrounding soil deformation.Bar connecting
The use of set, makes the connection reinforcing bar of the whole wall after assembling have certain pretension, can not only compress the interior sealing set
Bar, it can also effectively reduce the deformation of wall under soil pressure effect.Sealing rod can prevent erosion caused soil deformation.
The construction method efficiency of construction of the present invention is high, and deformation of wall is small, and water-stagnating effect is good, can control soil deformation in milli
In the range of meter level, it can avoid because construction of diaphragm wall is to around adjacent to the influence of important construction of structures.
It is described above, only it is the description explanation of the preferred embodiment of the present invention, not limiting the scope of the present invention, shows
So, any those skilled in the art are based on above-described embodiment, can readily occur in replacement or change to obtain other implementations
Example, these all should be included within the scope of the present invention.
Claims (8)
1. a kind of coercion underground continuous wall, including the prefabricated panel (1) that several piece is connected with each other, it is characterised in that：
The forward and backward face of the prefabricated panel is embedded with Grouting Pipe (2), and connection reinforcing bar (3) is reserved in prefabricated panel, prefabricated panel
Sealing rod (4) is embedded with assembling seam.
2. coercion underground continuous wall according to claim 1, it is characterised in that：
Connection reinforcing bar length in the prefabricated panel is alternate, and the end of longer connection reinforcing bar is provided with reinforced bar jointing sleeve (5), longer
Connection reinforcing bar be attached with corresponding short connection reinforcing bar by reinforced bar jointing sleeve.
3. coercion underground continuous wall according to claim 1, it is characterised in that：
Vertical and horizontal of the Grouting Pipe along prefabricated panel metope are uniformly distributed.
4. coercion underground continuous wall according to claim 1, it is characterised in that：
The side of the prefabricated panel sets fluted (6), and opposite side is provided with the tenon (7) matched with the groove shapes, phase
It is engaged to form mortise-tenon joint with tenon by groove between adjacent two phase wallboards.
5. the construction method of coercion underground continuous wall as claimed in claim 1, it is characterised in that comprise the following steps：
S1, using mud to groove carry out retaining wall；
S2, prefabricated panel (1) is put into groove according to axial location piecemeal, adjacent two phases prefabricated panel is attached,
Sealing rod (4) is embedded in the assembling seam of prefabricated panel, connects the connection reinforcing bar that prefabricated panel is reserved up and down in same phase wall, and
Utilize the Grouting Pipe (2) of sleeve pipe connection relevant position；
After S3, coercion underground continuous wall assembling, grouting liquid is poured to the space on the outside of precast wall body between slot wall, passed through
Slurries deadweight filling space, while with the space of connecting portion between the contiguous prefabricated wallboard of concrete casting；
S4, etc. step S3 slurries set strength reach requirement after, clear and coherent pre-buried Grouting Pipe (2), then carry out secondary injection
Slurry, first low-pressure grouting, ensures that slurries are uniformly distributed in wall side, then carries out high-pressure slip-casting, is completed after grout cures pre-
The construction of subterranean wall processed.
6. the construction method of coercion underground continuous wall according to claim 5, it is characterised in that：
Connection reinforcing bar length in the prefabricated panel is alternate, and the end of longer connection reinforcing bar is provided with reinforced bar jointing sleeve (5), in step
In rapid S2, longer connection reinforcing bar is attached with corresponding short connection reinforcing bar by reinforced bar jointing sleeve.
7. the construction method of coercion underground continuous wall according to claim 5, it is characterised in that：
The side of the prefabricated panel sets fluted (6), and opposite side is installed with the tenon (7) matched with the groove shapes,
In step s 2, it is engaged to form mortise-tenon joint with tenon by groove between adjacent two phases wallboard.
8. the construction method of coercion underground continuous wall according to claim 5, it is characterised in that：
Vertical and horizontal of the Grouting Pipe along prefabricated panel metope are uniformly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710518788.9A CN107447747B (en) | 2017-06-30 | 2017-06-30 | A kind of construction method of coercion underground continuous wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710518788.9A CN107447747B (en) | 2017-06-30 | 2017-06-30 | A kind of construction method of coercion underground continuous wall |
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| Publication Number | Publication Date |
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| CN107447747A true CN107447747A (en) | 2017-12-08 |
| CN107447747B CN107447747B (en) | 2019-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710518788.9A Active CN107447747B (en) | 2017-06-30 | 2017-06-30 | A kind of construction method of coercion underground continuous wall |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123362A (en) * | 2021-04-15 | 2021-07-16 | 深圳市市政设计研究院有限公司 | Design and construction method for side wall with fabricated underground diaphragm wall serving as main structure |
| CN113863323A (en) * | 2021-10-29 | 2021-12-31 | 中铁上海工程局集团有限公司 | Construction method adopting wall-shaped supporting structure |
| CN114197447A (en) * | 2021-11-02 | 2022-03-18 | 广州地铁设计研究院股份有限公司 | Lightweight single-side superposed prefabricated underground continuous wall and construction method thereof |
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| JP2001193058A (en) * | 2000-01-14 | 2001-07-17 | Ki Kyo | Construction method of diaphragm wall and unit wall of diaphragm wall |
| CN102116035A (en) * | 2009-12-30 | 2011-07-06 | 上海市机械施工有限公司 | Process for constructing underground structural walls without linings |
| CN203769116U (en) * | 2014-03-11 | 2014-08-13 | 朱彤 | Prefabricated through hole assembly type reinforced concrete shear wall |
| CN205224016U (en) * | 2015-11-16 | 2016-05-11 | 上海市政工程设计研究总院（集团）有限公司 | Vertical mosaic structure of precast underground continuous wall |
| CN105887806A (en) * | 2016-06-13 | 2016-08-24 | 上海强劲地基工程股份有限公司 | Assembled type underground diaphragm wall and construction method thereof |
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2017
- 2017-06-30 CN CN201710518788.9A patent/CN107447747B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001193058A (en) * | 2000-01-14 | 2001-07-17 | Ki Kyo | Construction method of diaphragm wall and unit wall of diaphragm wall |
| CN102116035A (en) * | 2009-12-30 | 2011-07-06 | 上海市机械施工有限公司 | Process for constructing underground structural walls without linings |
| CN203769116U (en) * | 2014-03-11 | 2014-08-13 | 朱彤 | Prefabricated through hole assembly type reinforced concrete shear wall |
| CN205224016U (en) * | 2015-11-16 | 2016-05-11 | 上海市政工程设计研究总院（集团）有限公司 | Vertical mosaic structure of precast underground continuous wall |
| CN105887806A (en) * | 2016-06-13 | 2016-08-24 | 上海强劲地基工程股份有限公司 | Assembled type underground diaphragm wall and construction method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123362A (en) * | 2021-04-15 | 2021-07-16 | 深圳市市政设计研究院有限公司 | Design and construction method for side wall with fabricated underground diaphragm wall serving as main structure |
| CN113863323A (en) * | 2021-10-29 | 2021-12-31 | 中铁上海工程局集团有限公司 | Construction method adopting wall-shaped supporting structure |
| CN114197447A (en) * | 2021-11-02 | 2022-03-18 | 广州地铁设计研究院股份有限公司 | Lightweight single-side superposed prefabricated underground continuous wall and construction method thereof |
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| CN107447747B (en) | 2019-08-30 |
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