CN103061348A - Sand-bag and steel sheet pile combined cofferdam for hard formation and construction method of cofferdam - Google Patents
Sand-bag and steel sheet pile combined cofferdam for hard formation and construction method of cofferdam Download PDFInfo
- Publication number
- CN103061348A CN103061348A CN2013100153394A CN201310015339A CN103061348A CN 103061348 A CN103061348 A CN 103061348A CN 2013100153394 A CN2013100153394 A CN 2013100153394A CN 201310015339 A CN201310015339 A CN 201310015339A CN 103061348 A CN103061348 A CN 103061348A
- Authority
- CN
- China
- Prior art keywords
- steel sheet
- sheet pile
- weir body
- sand
- mould bag
- 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.)
- Granted
Links
Images
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
- Revetment (AREA)
Abstract
The invention discloses a sand-bag and steel sheet pile combined cofferdam for hard formation and a construction method of the cofferdam. The sand-bag and steel sheet pile combined cofferdam comprises an inner cofferdam body and an outer cofferdam body which are disposed on the hard formation. Clay is disposed in the clearance between the inner cofferdam body and the outer cofferdam body, sand is then filled, and a steel sheet pile is then driven to penetrate through the sand and clay and into the hard formation deeply. The clay is disposed at the bottom of the clearance between the inner cofferdam body and the outer cofferdam body, the sand is disposed above the clay, and the steel sheet pile penetrates through the sand and the clay into the hard formation deeply to form a water stopping core wall. Due to the fact that the clay is high in viscosity, poor in water permeability and the like, when the steel sheet pile penetrates through the clay, the clay is adhered to the bottom of steel sheet pile and penetrates into the hard formation deeply, tight combination of the clay with the hard formation is achieved, water is prevented from permeating from the bottom of the steel sheet pile, and the water stopping core wall has good water stopping performance.
Description
Technical field
The present invention relates to water-retaining cofferdam and job practices thereof, particularly a kind of for mould bag sand, steel sheet pile combined cofferdam and job practices thereof on the hard formation.
Background technology
The engineerings such as the water conservancy and hydropower of building near water, water transport port works and city's political and ideological work China Democratic National Construction Association, all need be provided for the construction cofferdam of dash before the construction, form foundation ditch, carry out dry work, cofferdam commonly used has gravity sand mo(u)ld sack cofferdam, double steel sheet pile build-in type cofferdam and double steel sheet pile sand mo(u)ld bag to press lock bottoms weir, the end etc.
General bottom surface, waters great majority are covered by soft layer, can adopt mould bag sand to make the larger water-retaining cofferdam of width, the available concrete cut in the inside, cofferdam, the vertical curtain of geotechnique, rotary churning pile, agitation pile etc. are as water-stop curtain, can stop current in the infiltration of mould bag sand weir body the inside, be penetrated into another side in order to stop current under the effect of head pressure, to walk around its bottom from the one side of sealing material simultaneously, these sealing materials, must extend into the certain depth of following soil layer the inside, bottom, cofferdam, to reach the requirement of dash.
Yet, if need to mould bag sand cofferdam be set the hard formation surface in the shallow water territory, because phytal zone pile driving barge draft is inadequate, make concrete cut and can't construct; And but the agitation pile, rotary churning pile or the steel sheet pile that adopt many row's sealings all are difficult to enter the interior desired depth of firm hard formation of bottom, cofferdam, especially steel sheet pile, when throwing into, can puncture the mould bag, and with place, hard place joint portion seepage flow occuring easily, be difficult to reach the effect of sealing.
Summary of the invention
Technical problem to be solved by this invention provides on a kind of hard formation that can be used in the shallow water territory and sealing performance is good mould bag sand, steel sheet pile combined cofferdam, another technical problem to be solved by this invention provides a kind of job practices that forms this mould bag sand, steel sheet pile combined cofferdam in addition.
The present invention is the technical scheme that above-mentioned first technical problem of solution adopts: a kind of for mould bag sand, steel sheet pile combined cofferdam on the hard formation, comprise the interior weir body and the outer weir body that are arranged on the hard formation, bottom, gap between interior weir body and outer weir body is provided with argillic horizon, gap-fill between interior weir body and outer weir body has sandy soils, also be provided with some single steel sheet piles that are interconnected with one another between interior weir body and outer weir body, steel sheet pile passes sandy soils and argillic horizon gos deep into to hard formation.
Be further used as the improvement of mould bag sand of the present invention, steel sheet pile combined cofferdam, interior weir body and outer weir body are the rectangular trapezoidal mould bag sand weir body in the longitudinal cross-section of adopting the stacking formation of mould bag sand
Be further used as the improvement of mould bag sand of the present invention, steel sheet pile combined cofferdam, each steel sheet pile both sides is equipped with the sealing snap close, and each adjacent steel sheet pile links together by the sealing snap close.
Be further used as the improvement of mould bag sand of the present invention, steel sheet pile combined cofferdam, the sealing snap close is the U-shaped crimping that is arranged on the steel sheet pile two ends, and the opening direction of U-shaped crimping is towards steel sheet pile.
Be further used as the improvement of mould bag sand of the present invention, steel sheet pile combined cofferdam, be provided with the protection felt in the outside of mould bag sand weir body.
The present invention is the technical scheme that above-mentioned another technical problem of solution adopts: a kind of job practices that forms mould bag sand, steel sheet pile combined cofferdam may further comprise the steps:
1), adopt horizontal view picture sinking, the mode of vertically being close to solid matter is weir body and outer weir body in the stacking formation of mould bag sand, leaves the gap between interior weir body and the outer weir body;
2), throw heavy packed clay in the gap between interior weir body and outer weir body;
3), above packed clay, fill out and put sand to the top of interior weir body and outer weir body;
4), squeeze into steel sheet pile at sand, make the saturating sand of steel sheet pile and packed clay deeply to hard formation.
Be further used as the improvement that the present invention forms the job practices of mould bag sand, steel sheet pile combined cofferdam, at interior weir body and body top, outer weir concreting to form hardened layer.
Beneficial effect: this mould bag sand, steel sheet pile combined cofferdam and job practices thereof are provided with argillic horizon by bottom, the gap between interior weir body and outer weir body, and be provided with sandy soils thereon, steel sheet pile passes sandy soils and argillic horizon gos deep into consisting of sealing core wall to hard formation, because clay has viscosity by force and the characteristics such as bad hydraulic permeability, when steel sheet pile passes argillic horizon, clay covers in the steel sheet pile bottom and gos deep into hard formation, and then clay is combined closely with hard formation, stop current from the infiltration of steel sheet pile bottom, adopt the sealing core wall of this spline structure, sealing performance is good.
Description of drawings
The present invention is described further below in conjunction with drawings and embodiments;
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of Steel Sheet Pile of the present invention;
Fig. 3 is the structural representation of sealing snap close among the present invention.
The specific embodiment
Referring to figs. 1 through Fig. 3, the present invention is a kind of for mould bag sand, steel sheet pile combined cofferdam on the hard formation, comprise the interior weir body 1 and the outer weir body 2 that are arranged on the hard formation, bottom, gap between interior weir body 1 and outer weir body 2 is provided with argillic horizon 3, gap-fill between interior weir body 1 and outer weir body 2 has sandy soils 4, also be provided with some single steel sheet piles 5 that are interconnected with one another between interior weir body 1 and outer weir body 2, steel sheet pile 5 passes sandy soils 4 and argillic horizon 3 gos deep into to hard formation.
Be provided with argillic horizon 3 by bottom, the gap between interior weir body 1 and outer weir body 2, and be provided with sandy soils 4 thereon, steel sheet pile 5 passes sandy soils 4 and argillic horizon 3 gos deep into consisting of sealing core wall to hard formation, because clay has viscosity by force and the characteristics such as bad hydraulic permeability, when steel sheet pile 5 passes argillic horizon 3, clay covers in steel sheet pile 5 bottoms and gos deep into hard formation, and then clay is combined closely with hard formation, stop current to permeate from steel sheet pile 5 bottoms, adopt the sealing core wall of this spline structure, sealing performance is good.
As the preferred embodiment of mould bag sand of the present invention, steel sheet pile combined cofferdam, interior weir body 1 and outer weir body 2 are the rectangular trapezoidal mould bag sand weir body in the longitudinal cross-section of adopting the stacking formation of mould bag sand.
Adopt the earth working material woven cloth to make the mould bag and also in the mould bag, fill with sand, at shallow water territory hard formation by designing requirement with in horizontal view picture sinking, vertically be close to the mode of solid matter and build out at right angles trapezoidal mould bag sand weir body of longitudinal section, trapezoidal gradient is according to the designing requirement of satisfying stable needs, mould bag width in the body of mould bag sand weir is tailored by the overall with of interior weir body 1 and outer weir body 2 respectively, without refuting seam, can reduce current seepage flow between seam, and the mould bag highly need satisfy mould bag edge splitting requirement for bearing capacity after back-up sand, get large value as far as possible, reduce slit quantity between vertical bag.
As the preferred embodiment of mould bag sand of the present invention, steel sheet pile combined cofferdam, each steel sheet pile 5 both sides is equipped with sealing snap close 51, and each adjacent steel sheet pile 5 links together by sealing snap close 51.
As the preferred embodiment of mould bag sand of the present invention, steel sheet pile combined cofferdam, sealing snap close 51 is for being arranged on the U-shaped crimping at steel sheet pile 5 two ends, and the opening direction of U-shaped crimping is towards steel sheet pile 5.
The U-shaped crimping of steel sheet pile 5 one ends fastens to the U-shaped crimping of adjacent steel sheet pile 5 corresponding end in the mode of upright slide guide, the opening edge that is the U-shaped crimping is inserted in the open slot of adjacent U-shaped crimping in the mode of upright slide guide, adopt such snap-fit attachment with some block plate stake 5 continuous solid matters on hard formation, when steel sheet pile 5 is fastened and connected, sliding agent and sealing material should be smeared by 51 places at the sealing snap close, when being subject to horizontal applied force, 51 meetings of sealing snap close are further closely connected consolidation along with stressed increase, and when 5 injections are pressed into hard formation to steel sheet pile, should note the mutual fastening between the sealing snap close 51, guarantee stagnant water effect.
As the preferred embodiment of mould bag sand of the present invention, steel sheet pile combined cofferdam, the outside of mould bag sand weir body is provided with protection felt 6.
Be provided with protection felt 6 by the outside at mould bag sand weir body, can avoid the ultraviolet ray of Exposure to Sunlight to corrode the mould bag material.
A kind of job practices that forms mould bag sand, steel sheet pile combined cofferdam of the present invention may further comprise the steps:
1), adopt horizontal view picture sinking, the mode of vertically being close to solid matter is weir body 1 and outer weir body 2 in the stacking formation of mould bag sand, leaves the gap between interior weir body 1 and the outer weir body 2;
2), throw heavy packed clay in the gap between interior weir body 1 and outer weir body 2;
3), above packed clay, fill out and put sand to the top of interior weir body 1 and outer weir body 2;
4), squeeze into steel sheet pile 5 at sand, make steel sheet pile 5 saturating sands and packed clay deeply to hard formation.
Clay is to throw the heavy bottom, gap that enters between interior weir body 1 and the outer weir body 2 with packed form, and the height of packed clay need to satisfy the sealing requirement, and packed clay should not load full, so that fully compacting between the packed clay.
Gap between interior weir body 1 and outer weir body 2 is filled out and is put sand, although the sand water permeability is large than clay, is convenient to the construction of squeezing into of steel sheet pile.
At preposition injection steel sheet pile 5, before the injection, at steel sheet pile 5 front end top rakes, be convenient to insert packed clay, steel sheet pile 5 will be avoided body edge, mould bag sand weir, beats to penetrating packed clay, until till machinery can not get through fully always.
Form the preferred embodiment of the job practices of mould bag sand, steel sheet pile combined cofferdam as the present invention, at interior weir body 1 and outer weir body 2 top concretings to form hardened layer.
The hardened layer that concreting forms can be used as operation platform, convenient working.
The above has done detailed description to embodiments of the present invention by reference to the accompanying drawings, but the invention is not restricted to above-mentioned embodiment, in the ken that described technical field those of ordinary skill possesses, can also under the prerequisite that does not break away from aim of the present invention, make various variations.
Claims (7)
1. mould bag sand that is used on the hard formation, the steel sheet pile combined cofferdam, it is characterized in that: comprise the interior weir body (1) and the outer weir body (2) that are arranged on the hard formation, bottom, gap between described interior weir body (1) and outer weir body (2) is provided with argillic horizon (3), gap-fill between described interior weir body (1) and outer weir body (2) has sandy soils (4), also be provided with some single steel sheet piles (5) that are interconnected with one another between described interior weir body (1) and outer weir body (2), described steel sheet pile (5) passes sandy soils (4) and argillic horizon (3) gos deep into to hard formation.
2. according to claim 1 for mould bag sand, steel sheet pile combined cofferdam on the hard formation, it is characterized in that: described interior weir body (1) and outer weir body (2) are the rectangular trapezoidal mould bag sand weir body in the longitudinal cross-section of adopting the stacking formation of mould bag sand.
3. according to claim 1 and 2 for mould bag sand, steel sheet pile combined cofferdam on the hard formation, it is characterized in that: described each steel sheet pile (5) both sides are equipped with sealing snap close (51), and described each adjacent steel sheet pile (5) links together by sealing snap close (51).
4. according to claim 3 for mould bag sand, steel sheet pile combined cofferdam on the hard formation, it is characterized in that: described sealing snap close (51) is for being arranged on the U-shaped crimping at steel sheet pile (5) two ends, and the opening direction of described U-shaped crimping is towards steel sheet pile (5).
5. according to claim 2 for mould bag sand, steel sheet pile combined cofferdam on the hard formation, it is characterized in that: be provided with protection felt (6) in the outside of described mould bag sand weir body.
6. a job practices that forms the described mould bag of claim 1 sand, steel sheet pile combined cofferdam is characterized in that, may further comprise the steps:
1), adopt horizontal view picture sinking, the mode of vertically being close to solid matter is weir body (1) and outer weir body (2) in the stacking formation of mould bag sand, leaves the gap between described interior weir body (1) and the outer weir body (2);
2), throw heavy packed clay in the gap between described interior weir body (1) and outer weir body (2);
3), above described packed clay, fill out and put sand to the top of interior weir body (1) and outer weir body (2);
4), squeeze into steel sheet pile (5) at described sand, make steel sheet pile (5) thoroughly sand and packed clay deeply to hard formation.
7. the job practices of described mould bag sand, steel sheet pile combined cofferdam according to claim 6 is characterized in that: at described interior weir body (1) and outer weir body (2) top concreting to form hardened layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310015339.4A CN103061348B (en) | 2013-01-15 | 2013-01-15 | Sand-bag and steel sheet pile combined cofferdam for hard formation and construction method of cofferdam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310015339.4A CN103061348B (en) | 2013-01-15 | 2013-01-15 | Sand-bag and steel sheet pile combined cofferdam for hard formation and construction method of cofferdam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103061348A true CN103061348A (en) | 2013-04-24 |
| CN103061348B CN103061348B (en) | 2015-06-24 |
Family
ID=48104214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310015339.4A Active CN103061348B (en) | 2013-01-15 | 2013-01-15 | Sand-bag and steel sheet pile combined cofferdam for hard formation and construction method of cofferdam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103061348B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256817A (en) * | 2015-09-24 | 2016-01-20 | 佛山市水利水电建筑设计有限公司 | Underwater mould bag sand weir body construction method |
| CN106759267A (en) * | 2017-01-22 | 2017-05-31 | 广州市市政集团有限公司 | A kind of auxiliary for being easy to hard formation steel sheet pile to squeeze into draws hole method |
| CN108086338A (en) * | 2018-02-06 | 2018-05-29 | 东莞坂盈实业有限责任公司 | A kind of foundation pit cofferdam construction technology |
| CN110273429A (en) * | 2019-04-18 | 2019-09-24 | 南京同力建设集团股份有限公司 | A kind of piling bar plate and film bag sand cofferdam construction method |
| CN113737831A (en) * | 2021-09-16 | 2021-12-03 | 中国电建集团成都勘测设计研究院有限公司 | Combined structure of steel sheet pile, cofferdam and rotary spraying wall for coastal and construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060100315A (en) * | 2006-08-16 | 2006-09-20 | (주)인텔리지오 | Upstream part retaining wall type fill dam |
| CN1837512A (en) * | 2006-04-07 | 2006-09-27 | 上海市政工程设计研究总院 | Combined cofferdam of steel slab pile and steel pipe pile an method for manufacturing the same |
| CN201058995Y (en) * | 2007-06-22 | 2008-05-14 | 辽河石油勘探局 | Seaside earth coffer-dam |
| CN201080616Y (en) * | 2007-09-27 | 2008-07-02 | 中铁十局集团有限公司 | River spanning bridge underwater pier earthwork mud-filling bag cofferdam |
| CN203066089U (en) * | 2013-01-15 | 2013-07-17 | 广州市市政工程设计研究院 | Cofferdam combined by mold bag sand and steel sheet piles and used for hard strata |
-
2013
- 2013-01-15 CN CN201310015339.4A patent/CN103061348B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1837512A (en) * | 2006-04-07 | 2006-09-27 | 上海市政工程设计研究总院 | Combined cofferdam of steel slab pile and steel pipe pile an method for manufacturing the same |
| KR20060100315A (en) * | 2006-08-16 | 2006-09-20 | (주)인텔리지오 | Upstream part retaining wall type fill dam |
| CN201058995Y (en) * | 2007-06-22 | 2008-05-14 | 辽河石油勘探局 | Seaside earth coffer-dam |
| CN201080616Y (en) * | 2007-09-27 | 2008-07-02 | 中铁十局集团有限公司 | River spanning bridge underwater pier earthwork mud-filling bag cofferdam |
| CN203066089U (en) * | 2013-01-15 | 2013-07-17 | 广州市市政工程设计研究院 | Cofferdam combined by mold bag sand and steel sheet piles and used for hard strata |
Non-Patent Citations (2)
| Title |
|---|
| 夏云翔: "万安水利枢纽第一期高围堰设计", 《人民长江》 * |
| 程严等: "临海围堰结构设计分析", 《水利建设与管理》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256817A (en) * | 2015-09-24 | 2016-01-20 | 佛山市水利水电建筑设计有限公司 | Underwater mould bag sand weir body construction method |
| CN105256817B (en) * | 2015-09-24 | 2017-05-03 | 广东粤水电勘测设计有限公司 | Underwater mould bag sand weir body construction method |
| CN106759267A (en) * | 2017-01-22 | 2017-05-31 | 广州市市政集团有限公司 | A kind of auxiliary for being easy to hard formation steel sheet pile to squeeze into draws hole method |
| CN106759267B (en) * | 2017-01-22 | 2019-01-22 | 广州市市政集团有限公司 | A kind of auxiliary pilot hole method squeezed into convenient for hard formation steel sheet pile |
| CN108086338A (en) * | 2018-02-06 | 2018-05-29 | 东莞坂盈实业有限责任公司 | A kind of foundation pit cofferdam construction technology |
| CN110273429A (en) * | 2019-04-18 | 2019-09-24 | 南京同力建设集团股份有限公司 | A kind of piling bar plate and film bag sand cofferdam construction method |
| CN113737831A (en) * | 2021-09-16 | 2021-12-03 | 中国电建集团成都勘测设计研究院有限公司 | Combined structure of steel sheet pile, cofferdam and rotary spraying wall for coastal and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103061348B (en) | 2015-06-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102124163B (en) | Method for constructing a chair-type, self-supported earth retaining wall | |
| CN102900089B (en) | With the combination piling bar cofferdam of hydro-expansive rubber waterproof fore shaft | |
| CN101597904B (en) | Waterproof sheet pile cofferdam and construction method thereof | |
| US5259705A (en) | Guide box assembly system for in-ground barrier installation | |
| CN203034467U (en) | Combined steel pile cofferdam with water-proof fore shafts | |
| CN103882881B (en) | Go deep into rock construction method under water | |
| US20140314494A1 (en) | Polymer grouting method for constructing vertical supporting system | |
| CN103061348B (en) | Sand-bag and steel sheet pile combined cofferdam for hard formation and construction method of cofferdam | |
| CN106836246A (en) | Open trench tunnel crosses the construction method of section building enclosure | |
| CN107964969A (en) | Stake film is combined cofferdam and its construction method with soil | |
| CN208309566U (en) | A kind of water-stopping steel sheet pile | |
| CN203066089U (en) | Cofferdam combined by mold bag sand and steel sheet piles and used for hard strata | |
| CN108425370A (en) | Combined type cofferdam and its construction method | |
| US20160047105A1 (en) | Method and device for providing a piping protection system in a dike body | |
| DE858967C (en) | Process for sealing structures against the ingress of groundwater or for holding groundwater in construction pits and for shielding vibrations | |
| CN105862875A (en) | Support structure and construction method thereof | |
| CN203796288U (en) | Water seepage prevention structure used for shield entrance door employing SMW piles | |
| CN102787608B (en) | Gravity type foundation pit supporting system under vacuum effect and construction method | |
| CN103993609B (en) | The multi-functional fast hard concrement manual repair foundation pit waterproof curtain of silicon ash sand guide drainage | |
| CN212223491U (en) | Face river roadbed structure | |
| CN108149673A (en) | Concrete-pile and the continuous seepage-proofing water-sealing wall using concrete-pile splicing | |
| JP2003113608A (en) | Impervious wall structure and impervious bank protection structure using the same | |
| DE3700866C1 (en) | Method of constructing a quay wall | |
| CN104153356B (en) | The constructing device of concrete-pile and construction method thereof | |
| CN207405640U (en) | Stake film is combined cofferdam with soil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510060, No. 348, East Ring Road, Yuexiu District, Guangdong, Guangzhou Patentee after: Guangzhou City Engineering Design studies total institute Address before: 510060, No. 348, East Ring Road, Yuexiu District, Guangdong, Guangzhou Patentee before: Guangzhou Municipal Engineering Design and Research Institute |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 510060 East seat, No. 348 East Ring Road, Guangzhou, Guangdong, Yuexiu District Patentee after: Guangzhou municipal engineering design and Research Institute Co., Ltd. Address before: 510060, No. 348, East Ring Road, Yuexiu District, Guangdong, Guangzhou Patentee before: Guangzhou City Engineering Design studies total institute |