CN107386305A - Assembly concrete cofferdam and its construction method - Google Patents
Assembly concrete cofferdam and its construction method Download PDFInfo
- Publication number
- CN107386305A CN107386305A CN201710544004.XA CN201710544004A CN107386305A CN 107386305 A CN107386305 A CN 107386305A CN 201710544004 A CN201710544004 A CN 201710544004A CN 107386305 A CN107386305 A CN 107386305A
- Authority
- CN
- China
- Prior art keywords
- concrete
- pull bar
- board wall
- wall module
- modular
- Prior art date
- 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 title abstract description 8
- 238000009434 installation Methods 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 10
- 239000004927 clay Substances 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 4
- 241000276425 Xiphophorus maculatus Species 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Foundations (AREA)
Abstract
The invention discloses a kind of assembly concrete cofferdam and its construction method, including the board wall module being assembled by several concrete modulars；Bed course is provided with the board wall module between bilevel concrete modular, and per the center alignment of layer concrete module in board wall module；It is connected between the board wall module by cast-in-site stripe, and in concrete foundation.The present invention is assembled into board wall module using several concrete modulars, board wall module is connected by cast-in-site stripe forms modular cofferdam, the characteristics of with being easy to remove and installing, and also repeat and utilize after concrete modular dismounting, in addition, structure of the present invention is novel, strong applicability, construction is simple, safe.
Description
Technical field
The present invention relates to cofferdam technical field, and in particular to be a kind of assembly concrete cofferdam and its construction method.
Background technology
In construction of hydro project field, concrete cofferdam is a kind of structure being often used, and is formed by concrete cofferdam
Dry work environment, it is easy to agent structure thing to construct.But traditional concrete cofferdam is usually one-piece casting shaping, although structure
It is firm, but remove difficulty and big, with high costs.
The content of the invention
The purpose of the present invention is easy to remove and repeats utilization in view of the above-mentioned problems of the prior art, providing one kind
Assembly concrete cofferdam and its construction method.
To achieve the above object, the present invention adopts the following technical scheme that：
Assembly concrete cofferdam, it is characterised in that：Including the board wall module being assembled by several concrete modulars；
Bed course is provided with the board wall module between bilevel concrete modular, and per layer concrete module in board wall module
Center alignment；It is connected between the board wall module by cast-in-site stripe, and in concrete foundation.
In above-mentioned technical proposal, board wall module is assembled into using several concrete modulars, board wall module passes through cast-in-site stripe
It is connected and forms modular cofferdam, facilitates cofferdam demolition and installation, and also repeat and utilize after concrete modular dismounting.
Further, the concrete modular is cuboid platy structure；The left and right side of the concrete modular is all provided with
It is equipped with lifting hole(eyelet)；The lifting hole(eyelet) is symmetrically distributed in the z of the left and right side of concrete modular to center line both sides, so, can be conveniently mixed
The lifting installation and dismounting of solidifying clay model block.
Further, the lifting hole(eyelet) is 2, and is distributed in the y of the left and right side of concrete modular on center line.
Further, the upper and lower surface of the concrete modular is provided with the pull bar perforation of the insertion for installing pull bar；
Pull bar perforation be symmetrically distributed in the x on the upper and lower surface of concrete modular to y to center line both sides, and in board wall module
Run through up and down per the pull bar perforation in layer concrete module, so, pull bar can be conveniently installed, and between levels concrete module
Tensed by pull bar, further increase structural stability.
Further, the pull bar perforation is 4, or for 8.
Further, the pull bar includes pre-buried pull bar and installation pull bar；The pre-buried pull bar is embedded in concrete foundation
On；The installation pull bar passes through the pull bar perforation mutually run through in every layer concrete module in board wall module and pre-buried pull bar phase
Connect, and the top of pull bar perforation passes through lock nut and upper strata concrete modular is locked.
Further, the installation pull bar is connected by attaching nut with pre-buried pull bar.
Further, it is provided with the center of the joint face of the neighbouring concrete modular for installing sealing rod
Groove, to improve the waterproof effect in whole cofferdam.
Further, the bed course is the bed course made of high density extruded sheet.
Further, the cast-in-site stripe is compacted clay cast-in-site stripe, or is cast-in-place expansive concrete cast-in-site stripe.
Construct the method in above-mentioned assembly concrete cofferdam, comprise the following steps：
1) casting concrete basis, and the pre-buried pull bar during concrete foundation pours, then, will connect spiral shell
Mother is installed to the top of pre-buried pull bar, with the basic and pre-buried pull bar of fixing concrete；
2) the first layer concrete modular in the concrete foundation upper mounting plate wall module of step 1), then, first
Bed course is laid in layer concrete module, and sealing rod is installed on the groove of concrete modular, is repeated the above steps, until board wall
Top layer concrete modular is installed in place in module, forms board wall module, wherein, pull bar perforation and concrete in concrete modular
On the basis of pre-buried pull bar alignment；
3) installation pull bar is penetrated per the pull bar in layer concrete module along the board wall module of step 2), and with being connected
Nut alignment, rotation, until being connected firmly, then, precompressed sandbag are placed on top layer concrete modular and carries out precompressed, are eliminated
The deformation of bed course, after precompressed terminates, draw lever locking by top layer concrete modular and is installed using lock nut, unloads sandbag, weight
Multiple above-mentioned steps, install remaining each section of board wall module；
4) cast-in-site stripe is poured between each section of board wall module in step 3), each section of board wall module is connected, formation is enclosed
Weir.
The invention has the advantages that：
1st, cofferdam agent structure is made up of concrete modular in the present invention, meets standardization and modular trend, and mould
Block structure facilitates cofferdam demolition, and repeatable utilization, greatly reduces engineering cost；
2nd, tensed in the present invention between levels concrete module by pull bar, structure is more stable, and concrete sealing
The installation of bar, further increase the waterproof effect in whole cofferdam.
3rd, structure of the present invention is novel, strong applicability, construction is simple, safe, solves concrete cofferdam for a long time
Problem difficult, that cost is high is removed, there is very high promotional value.
Brief description of the drawings
Fig. 1 is the front view in assembly concrete cofferdam of the present invention；
Fig. 2 is Fig. 1 of the present invention vertical cross section figure.
In figure：Board wall module 1 is (wherein：Concrete modular 11；Concrete modular 11 is perforated including lifting hole(eyelet) 111, pull bar again
112), bed course 2, cast-in-site stripe 3, concrete foundation 4, pull bar 5 be (wherein：Pre-buried pull bar 51, installation pull bar 52), lock nut 6, even
Connected nut 7, sealing rod 8, groove 9.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, assembly concrete cofferdam of the present invention, including the concrete mould by several cuboid platy structures
The board wall module 1 that block 11 is assembled；It is provided with the board wall module 1 between bilevel concrete modular 11 by highly dense
Bed course 2 made of extruded sheet is spent, and per the center alignment of layer concrete module 11 in board wall module 1, wherein, concrete modular 11
Center refer to the x of concrete modular 11 to, y to the intersection point with z to center line；Pass through cast-in-site stripe 3 between the board wall module 1
It is connected, and in concrete foundation 4, wherein, compacting is made using clay compaction in layers or cast-in-place expansive concrete in cast-in-site stripe 3
Clay cast-in-site stripe 3 or cast-in-place expansive concrete cast-in-site stripe 3.
As shown in Fig. 2 the left and right side of the concrete modular 11 is provided with 2 lifting hole(eyelet)s 111；The lifting hole(eyelet) 111 is right
The z for claiming to be distributed in the left and right side of concrete modular 11 is distributed in the left and right side of concrete modular 11 to center line both sides
The y in face is on center line；In addition, it is provided with the center of the joint face of neighbouring concrete modular 11 for installing sealing
The groove 9 of bar 8, sealing rod 8 can be rubber water-proof bar 8, and it is i.e. inflatable that the sealing rod 8 meets water.
And as depicted in figs. 1 and 2, the upper and lower surface of the concrete modular 11 be provided with 4 or 8 be used for install drawing
The pull bar perforation 112 of the insertion of bar 5, but pull bar perforation 112 is also not limited to 4 or 8, or the even number numbers such as 12,
Size according to concrete modular 11 carries out the setting of respective numbers, and the size of single concrete modular 11 is bigger, pull bar perforation
112 number accordingly increases；Pull bar perforation 112 be symmetrically distributed in the x on the upper and lower surfaces of concrete modular 11 to y to
Center line both sides, and run through in board wall module 1 per the pull bar perforation about 112 in layer concrete module 11；
The pull bar 5 includes pre-buried pull bar 51 and installation pull bar 52；The pre-buried pull bar 51 is embedded in concrete foundation 4
On；The installation pull bar 52 passes through the pull bar perforation 112 mutually run through in every layer concrete module 11 in board wall module 1 and passed through
Attaching nut (7) is connected with pre-buried pull bar 51, and the top of pull bar perforation 112 passes through lock nut 6 and upper strata concrete modular
11 lockings.
Wherein, above-mentioned x to, y to z to be horizontally oriented respectively, perpendicular to x to z to the direction of plane, vertical side
To.
Construct the method in above-mentioned assembly concrete cofferdam, comprise the following steps：
1) casting concrete basis 4, and the pre-buried pull bar 51 during concrete foundation 4 pours, then, by even
Connected nut 7 is installed to the top of pre-buried pull bar 51, with fixing concrete basis 4 and pre-buried pull bar 51；
2) the first layer concrete modular 11 in the upper mounting plate wall module 1 of concrete foundation 4 of step 1), then,
Bed course 2 is laid on first layer concrete modular 11, and sealing rod 8 is installed on the groove 9 of concrete modular 11, repeats above-mentioned step
Suddenly, until top layer concrete modular 11 is installed in place in board wall module 1, board wall module 1 is formed, wherein, in concrete modular 11
Pull bar perforation 112 alignd with the pre-buried pull bar 51 in concrete foundation 4；
3) installation pull bar 52 is penetrated per the pull bar perforation 112 in layer concrete module 11 along the board wall module 1 of step 2),
And be aligned, rotate with attaching nut 7, until being connected firmly, then, it is enterprising that precompressed sandbag is placed on top layer concrete modular 11
Row precompressed, the deformation of bed course 2 is eliminated, after precompressed terminates, pull bar 52 by top layer concrete modular 11 and is installed using lock nut 6
Locking, unloads sandbag, repeats the above steps, and installs remaining each section of board wall module 1；
4) cast-in-site stripe is poured between each section of board wall module 1 in step 3), each section of board wall module 1 is connected, formed
Cofferdam.
Other parts not being described in detail belong to prior art.
Claims (10)
1. assembly concrete cofferdam, it is characterised in that：Including the board wall mould being assembled by several concrete modulars (11)
Block (1)；Bed course (2), and board wall module are provided with the board wall module (1) between bilevel concrete modular (11)
(1) center alignment in per layer concrete module (11)；It is connected between the board wall module (1) by cast-in-site stripe (3), and is located at
In concrete foundation (4).
2. assembly concrete cofferdam according to claim 1, it is characterised in that：The concrete modular (11) is rectangular
Body platy structure；The left and right side of the concrete modular (11) is provided with lifting hole(eyelet) (111)；The lifting hole(eyelet) (111) is symmetrically divided
The z of the left and right side of concrete modular (11) is distributed in center line both sides.
3. the assembly concrete cofferdam according to claims 2, it is characterised in that：The lifting hole(eyelet) (111) is 2, and
The y of the left and right side of concrete modular (11) is distributed in on center line.
4. the assembly concrete cofferdam according to any claim in claims 1 to 3, it is characterised in that：It is described mixed
The upper and lower surface of solidifying clay model block (11) is provided with the pull bar perforation (112) of the insertion for installing pull bar (5)；The pull bar is worn
Hole (112) be symmetrically distributed in the x on the upper and lower surface of concrete modular (11) to y to center line both sides, and board wall module (1)
In run through up and down per the pull bar perforation (112) in layer concrete module (11).
5. assembly concrete cofferdam according to claim 4, it is characterised in that：The pull bar perforation (112) is 4,
Or for 8.
6. assembly concrete cofferdam according to claim 5, it is characterised in that：The pull bar (5) includes pre-buried pull bar
(51) and installation pull bar (52)；The pre-buried pull bar (51) is embedded in concrete foundation (4)；The installation pull bar (52) passes through
The pull bar perforation (112) mutually run through in every layer concrete module (11) in board wall module (1) is connected with pre-buried pull bar (51), and
Locked by lock nut (6) and upper strata concrete modular (11) at the top of pull bar perforation (112).
7. assembly concrete cofferdam according to claim 6, it is characterised in that：The installation pull bar (52) passes through connection
Nut (7) is connected with pre-buried pull bar (51).
8. assembly concrete cofferdam according to claim 7, it is characterised in that：The neighbouring concrete modular
(11) groove (9) for installing sealing rod (8) is provided with the center of joint face.
9. assembly concrete cofferdam according to claim 8, it is characterised in that：The bed course (2) is to be squeezed by high density
Bed course made of mould plate (2)；Described cast-in-place (3) band is compacted clay cast-in-site stripe, or is cast-in-place expansive concrete cast-in-site stripe.
10. the method in the assembly concrete cofferdam in claim 1 to 9 of constructing described in any claim, including following step
Suddenly：
1) casting concrete basis 4, and the pre-buried pull bar 51 during concrete foundation 4 pours, then, will connect spiral shell
Mother 7 is installed to the top of pre-buried pull bar 51, with fixing concrete basis 4 and pre-buried pull bar 51；
2) the first layer concrete modular 11 in the upper mounting plate wall module 1 of concrete foundation 4 of step 1), then, first
Bed course 2 is laid in layer concrete module 11, and sealing rod 8 is installed on the groove 9 of concrete modular 11, is repeated the above steps,
Until top layer concrete modular 11 is installed in place in board wall module 1, board wall module 1 is formed；
3) penetrated along step 2) in board wall module 1 per the pull bar perforation 112 in layer concrete module 11 and pull bar 52 is installed, and with
Attaching nut 7 is aligned, rotated, until being connected firmly, then, precompressed sandbag is placed on top layer concrete modular 11 and carried out in advance
Pressure, after precompressed terminates, top layer concrete modular 11 and installation pull bar 52 are locked using lock nut 6, sandbag is unloaded, in repetition
Step is stated, remaining each section of board wall module 1 is installed；
4) cast-in-site stripe is poured between each section of board wall module 1 in step 3), each section of board wall module 1 is connected, form cofferdam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710544004.XA CN107386305A (en) | 2017-07-05 | 2017-07-05 | Assembly concrete cofferdam and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710544004.XA CN107386305A (en) | 2017-07-05 | 2017-07-05 | Assembly concrete cofferdam and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107386305A true CN107386305A (en) | 2017-11-24 |
Family
ID=60335426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710544004.XA Pending CN107386305A (en) | 2017-07-05 | 2017-07-05 | Assembly concrete cofferdam and its construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107386305A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737582A (en) * | 2022-05-20 | 2022-07-12 | 中交第一航务工程局有限公司 | Assembled gravity type concrete cofferdam and construction method thereof |
| CN114875938A (en) * | 2022-05-12 | 2022-08-09 | 南京西部路桥集团有限公司 | Assembled reinforced concrete cofferdam and construction method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5826107A (en) * | 1981-08-10 | 1983-02-16 | Motoyuki Nakada | Cut-off work by concrete block |
| EP0399870A1 (en) * | 1989-05-26 | 1990-11-28 | Siplast S.A. | Prefabricated element for the construction of a dam facing and construction method for such a dam |
| CN1231013A (en) * | 1996-09-19 | 1999-10-06 | 鲍尔建材有限公司 | Fiber bale composite structural building system |
| CN204626427U (en) * | 2015-03-18 | 2015-09-09 | 李伟 | Assembling cofferdam |
| CN204662362U (en) * | 2015-04-07 | 2015-09-23 | 中国电建集团贵阳勘测设计研究院有限公司 | Riverbed type factory building normal state concrete water retaining structure |
| CN204715379U (en) * | 2015-05-13 | 2015-10-21 | 广西壮族自治区水利电力勘测设计研究院 | Step concrete cofferdam |
| CN206941624U (en) * | 2017-07-05 | 2018-01-30 | 中交第二航务工程局有限公司 | Assembly concrete cofferdam |
-
2017
- 2017-07-05 CN CN201710544004.XA patent/CN107386305A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5826107A (en) * | 1981-08-10 | 1983-02-16 | Motoyuki Nakada | Cut-off work by concrete block |
| EP0399870A1 (en) * | 1989-05-26 | 1990-11-28 | Siplast S.A. | Prefabricated element for the construction of a dam facing and construction method for such a dam |
| CN1231013A (en) * | 1996-09-19 | 1999-10-06 | 鲍尔建材有限公司 | Fiber bale composite structural building system |
| CN204626427U (en) * | 2015-03-18 | 2015-09-09 | 李伟 | Assembling cofferdam |
| CN204662362U (en) * | 2015-04-07 | 2015-09-23 | 中国电建集团贵阳勘测设计研究院有限公司 | Riverbed type factory building normal state concrete water retaining structure |
| CN204715379U (en) * | 2015-05-13 | 2015-10-21 | 广西壮族自治区水利电力勘测设计研究院 | Step concrete cofferdam |
| CN206941624U (en) * | 2017-07-05 | 2018-01-30 | 中交第二航务工程局有限公司 | Assembly concrete cofferdam |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114875938A (en) * | 2022-05-12 | 2022-08-09 | 南京西部路桥集团有限公司 | Assembled reinforced concrete cofferdam and construction method thereof |
| CN114875938B (en) * | 2022-05-12 | 2024-03-08 | 南京西部路桥集团有限公司 | Assembled reinforced concrete cofferdam and construction method thereof |
| CN114737582A (en) * | 2022-05-20 | 2022-07-12 | 中交第一航务工程局有限公司 | Assembled gravity type concrete cofferdam and construction method thereof |
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Application publication date: 20171124 |