CN105369818A - Comb teeth trench type division and closure construction method of double-row steel sheet-piled cofferdam of coast - Google Patents
Comb teeth trench type division and closure construction method of double-row steel sheet-piled cofferdam of coast Download PDFInfo
- Publication number
- CN105369818A CN105369818A CN201510868265.8A CN201510868265A CN105369818A CN 105369818 A CN105369818 A CN 105369818A CN 201510868265 A CN201510868265 A CN 201510868265A CN 105369818 A CN105369818 A CN 105369818A
- Authority
- CN
- China
- Prior art keywords
- steel sheet
- pile
- water conservancy
- conservancy diversion
- cofferdam
- 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
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
-
- 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
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0061—Production methods for working underwater
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (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)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Revetment (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention provides a comb teeth trench type division and closure construction method of a double-row steel sheet-piled cofferdam of a coast. According to the technical scheme, the method comprises the following steps: a, determining the location and prepared width of a closure gap; b, constructing all double-row steel sheet-piled cofferdams, excepting the double-row steel sheet-piled cofferdams at the outsides of a closure chamber and a division chamber; c, constructing a steel sheet-pile wall of the division chamber and a diaphragm steel sheet-pile wall; d, cutting the steel sheet-pile wall of the division chamber at intervals of one or a plurality of steel sheet piles; e, pulling up the division chamber, and cutting an upper part structure of the steel sheet pile to form a comb teeth trench flowing channel; f, constructing a steel sheet-pile wall of the closure chamber; g, cutting the division chamber, and inserting back an upper component of the steel sheet pile. According to the method, the characteristics of the structure of the double-row steel sheet-piled cofferdam is fully utilized to solve the problem of division in the closure of the double-row steel sheet-piled cofferdam, and the cofferdam closure risk and the construction difficulty can be reduced; secondary cofferdams cannot be additionally constructed during the closure of the double-row steel sheet-piled cofferdam, so that the cofferdam construction is sped up, and the total cost of the cofferdam can be decreased.
Description
Technical field
The present invention relates to a kind of cofferdam river closure construction method in construction project field, especially relate to a kind of strand double steel sheet-pile cofferdam river closure construction method.
Background technology
At present, the coastal region engineering construction on the ground such as Zhejiang, Shanghai, Guangdong can use double steel sheet-pile cofferdam.Double steel sheet-pile cofferdam utilizes the U-shaped steel sheet pile of multi-disc both sides belt lock catch to be connected to form two row's steel sheet-pile walls, and Cast-in-situ Piles in Sand-filling or soil are formed between two row's steel sheet-pile walls.Cofferdam has Stability Analysis of Structures, floor space is little, speed of application is fast, the advantage such as environmental protection and investment reduction.
In double steel sheet pile cofferdam construction process, be accelerating construction progress, need two construct teams and groups or the constructions of multiple teams and groups.For the constructure scheme that linear double steel sheet-pile cofferdam adopts two ends progressively to advance to centre, for the constructure scheme that the double steel sheet-pile cofferdam of annular advances from a starting point to terminal, this two schemes finally all can run into steel sheet pile closure opertation.Under littoral environment condition; tidewater fluctuation impact can be subject in closure process, cause both sides, cofferdam, Longkou to produce certain water-head and larger flow velocity, make finally several closure steel sheet piles produce huge swing; cause both sides, Longkou steel sheet pile not in one plane, closure cannot be carried out smoothly.The construction method of current routine fills small dike by sandstone charging pipe bag outside the closure section of cofferdam, after small dike is joined the two sections of a bridge, etc, carry out double steel sheet-pile cofferdam river closure construction again.The subject matter of this kind of construction method existence is: in strand by under tidewater influence condition, coordinate owing to lacking water conservancy diversion, there is greater risk and difficulty in small dike's closing construction, and need wait for that small dike carries out double steel sheet-pile cofferdam river closure construction after having constructed again, finally also will remove small dike, the construction period is long, investment is large.
Summary of the invention
The object of the invention is for above-mentioned Problems existing, there is provided that a kind of and double steel sheet pile cofferdam structure feature adapts, the cofferdam river closure construction method of easy construction, reach and reduce technical difficulty and risk, reduce dam project total cost, shorten cofferdam closure total lever factor.
The technical solution adopted in the present invention is: a kind of strand double steel sheet-pile cofferdam comb groove leads river closure construction method, and its step is as follows:
A, the position, Longkou determining double steel sheet-pile cofferdam and reserved width, arrange closure storehouse in Longkou section, arranges water conservancy diversion storehouse in closure both sides, storehouse;
B, all the other double steel sheet-pile cofferdams of having constructed except closure storehouse and water conservancy diversion storehouse;
C, set water conservancy diversion storehouse steel sheet-pile wall and tabula steel sheet-pile wall, install and enclose purlin and pull bar, backfill design filler in water conservancy diversion storehouse;
D, by the order of water conservancy diversion storehouse steel sheet-pile wall according to one or more steel sheet pile of interval, at cutting setting elevation place, steel sheet-pile wall cutting in water conservancy diversion storehouse is divided into water conservancy diversion storehouse and cuts open steel sheet pile upper component and water conservancy diversion storehouse cuts open steel sheet pile lower member;
E, pull up water conservancy diversion storehouse and cut open steel sheet pile upper component, make water conservancy diversion storehouse steel sheet-pile wall form comb groove flow channels;
F, set closure storehouse steel sheet-pile wall, install and enclose purlin and pull bar, design filler in backfill storehouse to design altitude;
G, water conservancy diversion storehouse is cut open steel sheet pile upper component turn back to, and at low tide place by the steel sheet-pile wall otch weld reinforcement of water conservancy diversion storehouse, backfill design filler is to design altitude in water conservancy diversion storehouse, completes double steel sheet-pile cofferdam river closure construction.
Described water conservancy diversion storehouse and closure storehouse utilize tabula steel sheet-pile wall to be separated by double steel cofferdam.
One or more water conservancy diversion storehouse is arranged in both sides, described closure storehouse.
Described cutting setting elevation is more than mean tide tlevel.
Backfill design filler in described water conservancy diversion storehouse, is filled to below water conservancy diversion storehouse cutting setting elevation.
Beneficial effect of the present invention:
(1) the present invention makes full use of double steel sheet-pile cofferdam own structural characteristics, creatively solves water conservancy diversion problem when double steel sheet-pile cofferdam joins the two sections of a bridge, etc, reduces cofferdam closure risk and difficulty of construction;
(2) present invention eliminates another facility brigade cofferdam when double steel sheet-pile cofferdam joins the two sections of a bridge, etc, accelerate cofferdam construction speed, reduce cofferdam total cost.
Accompanying drawing explanation
Fig. 1 is Longkou, cofferdam closure frontal plane schematic diagram in the embodiment of the present invention;
Fig. 2 is cofferdam closure front water conservancy diversion storehouse comb groove overcurrent floor map in the embodiment of the present invention;
Fig. 3 is cofferdam closure rear water conservancy diversion storehouse comb groove overcurrent floor map in the embodiment of the present invention;
Fig. 4 is water conservancy diversion storehouse closure back plane schematic diagram in the embodiment of the present invention;
Fig. 5 is comb groove elevational schematic view in water conservancy diversion storehouse in the embodiment of the present invention.
In figure: 1 Longkou; 2 water conservancy diversion storehouses; 3 closure storehouses; 4 enclose purlin; 5 pull bars; 21 water conservancy diversion storehouse steel sheet-pile walls; 22 tabula steel sheet-pile walls; 31 closure storehouse steel sheet-pile walls; 211 water conservancy diversion storehouses retain steel sheet pile; 212 water conservancy diversion storehouses cut open steel sheet pile superstructure; 213 water conservancy diversion storehouses cut open steel sheet pile lower part structure.
Detailed description of the invention
Lead river closure construction method below in conjunction with accompanying drawing to a kind of strand of the present invention double steel sheet-pile cofferdam comb groove to be described.
In the embodiment of the present invention, double steel sheet-pile cofferdam general arrangement is for being circular layout, and cofferdam axis total length is about 1500m, and the corral foundation ditch gross area is about 140,000 m
2.Dam in process at double steel sheet-pile cofferdam, 1 Longkou is set, Longkou length 30m.By arranging water conservancy diversion storehouse, getting through outside flow channels in foundation ditch, having reduced outside water level and closure closures current speed in foundation ditch, effectively ensureing damming smoothly of double steel sheet-pile cofferdam.
The concrete construction method of the present embodiment is as follows:
A, determine position, Longkou 1 and reserved width; Longkou section selection straightway, the position that stormy waves is less, current are smooth-going, tide dynamic force is relatively weak, its width is determined according to cofferdam closure hydraulics and construction requirement; Longkou section arranges closure storehouse 3, and 2 water conservancy diversion storehouses 2 are respectively arranged in closure both sides, storehouse 3, and the quantity in water conservancy diversion storehouse 2 and width are determined according to cofferdam closure hydraulics and construction requirement; Water conservancy diversion storehouse 2 and closure storehouse 3 utilize tabula steel sheet-pile wall 22 to be separated by double steel cofferdam;
B, all the other double steel sheet-pile cofferdams of having constructed except closure storehouse 3 and water conservancy diversion storehouse 2;
C, employing ship play or erection construction platform method set water conservancy diversion storehouse steel sheet-pile wall 2-1 and tabula steel sheet-pile wall 2-2, purlin 4 and pull bar 5 are enclosed in installation, in water conservancy diversion storehouse 2 backfill design filler, be filled to water conservancy diversion storehouse cutting setting elevation under 0.5m, cutting setting elevation at the above 0.5m of mean tide tlevel;
D, by the order of water conservancy diversion storehouse steel sheet-pile wall 21 according to the steel sheet pile in interval, at cutting setting elevation place, steel sheet-pile wall 21 cutting in water conservancy diversion storehouse is divided into water conservancy diversion storehouse and cuts open steel sheet pile upper part component 212 and water conservancy diversion storehouse cuts open steel sheet pile lower member 213;
E, pull up water conservancy diversion storehouse and cut open steel sheet pile upper component 212, make water conservancy diversion storehouse steel sheet-pile wall 21 form comb groove flow channels;
F, set closure storehouse steel sheet-pile wall 31, install and enclose purlin 4 and pull bar 5, in closure storehouse, cofferdam, backfill design filler is to design altitude;
G, water conservancy diversion storehouse is cut open steel sheet pile upper component 212 turn back to, and at low tide place by the steel sheet-pile wall 21 otch weld reinforcement of water conservancy diversion storehouse, backfill design filler is to design altitude in water conservancy diversion storehouse 2, completes double steel sheet-pile cofferdam river closure construction.
Claims (5)
1. the double steel sheet-pile cofferdam comb in strand groove leads a river closure construction method, it is characterized in that: it comprises the following steps:
A, (1) position, Longkou determining double steel sheet-pile cofferdam and reserved width, arrange closure storehouse (3) in Longkou section, arranges water conservancy diversion storehouse (2) in closure storehouse (3) both sides;
B, all the other double steel sheet-pile cofferdams of having constructed except closure storehouse (3) and water conservancy diversion storehouse (2);
C, set water conservancy diversion storehouse steel sheet-pile wall (21) and tabula steel sheet-pile wall (22), install and enclose purlin (4) and pull bar (5), backfill water conservancy diversion storehouse (2) in and design filler;
D, by the order of water conservancy diversion storehouse steel sheet-pile wall (21) according to one or more steel sheet pile of interval, at cutting setting elevation place, water conservancy diversion storehouse steel sheet-pile wall (21) cutting is divided into water conservancy diversion storehouse and cuts open steel sheet pile upper component (212) and water conservancy diversion storehouse cuts open steel sheet pile lower member (213);
E, pull up water conservancy diversion storehouse and cut open steel sheet pile upper component (212), make water conservancy diversion storehouse steel sheet-pile wall (21) form comb groove flow channels;
F, set closure storehouse steel sheet-pile wall (31), install enclose purlin (4) and pull bar (5), backfill storehouse in design filler to design altitude;
G, water conservancy diversion storehouse is cut open steel sheet pile upper component (212) turn back to, and at low tide place by steel sheet-pile wall (21) the otch weld reinforcement of water conservancy diversion storehouse, in water conservancy diversion storehouse (2), backfill design filler is to design altitude, completes double steel sheet-pile cofferdam river closure construction.
2. a kind of strand according to claim 1 double steel sheet-pile cofferdam comb groove leads river closure construction method, it is characterized in that: described water conservancy diversion storehouse (2) and closure storehouse (3) utilize tabula steel sheet-pile wall (22) to be separated by double steel cofferdam.
3. a kind of strand according to claim 1 double steel sheet-pile cofferdam comb groove leads river closure construction method, it is characterized in that: one or more water conservancy diversion storehouse (2) is arranged in described closure storehouse (3) both sides.
4. a kind of strand according to claim 1 double steel sheet-pile cofferdam comb groove leads river closure construction method, it is characterized in that: described cutting setting elevation is more than mean tide tlevel.
5. a kind of strand according to claim 1 double steel sheet-pile cofferdam comb groove leads river closure construction method, it is characterized in that: backfill design filler in described water conservancy diversion storehouse (2), is filled to below water conservancy diversion storehouse (2) cutting setting elevation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510868265.8A CN105369818B (en) | 2015-12-02 | 2015-12-02 | Comb teeth trench type division and closure construction method of double-row steel sheet-piled cofferdam of coast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510868265.8A CN105369818B (en) | 2015-12-02 | 2015-12-02 | Comb teeth trench type division and closure construction method of double-row steel sheet-piled cofferdam of coast |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105369818A true CN105369818A (en) | 2016-03-02 |
| CN105369818B CN105369818B (en) | 2017-04-12 |
Family
ID=55372403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510868265.8A Active CN105369818B (en) | 2015-12-02 | 2015-12-02 | Comb teeth trench type division and closure construction method of double-row steel sheet-piled cofferdam of coast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105369818B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024637A (en) * | 2018-07-21 | 2018-12-18 | 四川启创建设工程有限公司 | A kind of combined cofferdam and its build construction method |
| CN113417303A (en) * | 2021-07-10 | 2021-09-21 | 乐清市大禹水利水电工程有限公司 | Coastal double-row steel sheet pile cofferdam diversion and interception structure and construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090089832A (en) * | 2009-07-31 | 2009-08-24 | 현대엔지니어링 주식회사 | Nature friendly polygon cell type coffering method for harbor, river and dam construction |
| CN101892632A (en) * | 2009-05-19 | 2010-11-24 | 上海市基础工程公司 | Construction method of structural system of river under no-cutoff working condition |
| KR20110024439A (en) * | 2009-09-02 | 2011-03-09 | 한창헌 | A retaining wall and method for it |
| CN104452785A (en) * | 2014-11-06 | 2015-03-25 | 中铁十五局集团有限公司 | Larsen steel sheet pile cofferdam folding construction method |
| JP2015129372A (en) * | 2014-01-06 | 2015-07-16 | 五洋建設株式会社 | Sheet pile and cutoff method |
| CN104805854A (en) * | 2015-04-29 | 2015-07-29 | 中铁四局集团第二工程有限公司 | Method for constructing deep-water ultra-long steel plate pile cofferdam in tide environment |
-
2015
- 2015-12-02 CN CN201510868265.8A patent/CN105369818B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892632A (en) * | 2009-05-19 | 2010-11-24 | 上海市基础工程公司 | Construction method of structural system of river under no-cutoff working condition |
| KR20090089832A (en) * | 2009-07-31 | 2009-08-24 | 현대엔지니어링 주식회사 | Nature friendly polygon cell type coffering method for harbor, river and dam construction |
| KR20110024439A (en) * | 2009-09-02 | 2011-03-09 | 한창헌 | A retaining wall and method for it |
| JP2015129372A (en) * | 2014-01-06 | 2015-07-16 | 五洋建設株式会社 | Sheet pile and cutoff method |
| CN104452785A (en) * | 2014-11-06 | 2015-03-25 | 中铁十五局集团有限公司 | Larsen steel sheet pile cofferdam folding construction method |
| CN104805854A (en) * | 2015-04-29 | 2015-07-29 | 中铁四局集团第二工程有限公司 | Method for constructing deep-water ultra-long steel plate pile cofferdam in tide environment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024637A (en) * | 2018-07-21 | 2018-12-18 | 四川启创建设工程有限公司 | A kind of combined cofferdam and its build construction method |
| CN113417303A (en) * | 2021-07-10 | 2021-09-21 | 乐清市大禹水利水电工程有限公司 | Coastal double-row steel sheet pile cofferdam diversion and interception structure and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105369818B (en) | 2017-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103306250B (en) | In-tunnel diversion type cascade hydropower station and construction method thereof | |
| CN105201001B (en) | Composite seepage-proofing structure of large karst cave in karst region and construction method thereof | |
| WO2014201742A1 (en) | Debris flow drainage trough planning and designing method and application thereof | |
| CN202323895U (en) | Tail water channel structure for stepped hydro-junction | |
| CN105369818B (en) | Comb teeth trench type division and closure construction method of double-row steel sheet-piled cofferdam of coast | |
| CN103397614A (en) | Stone cage check dam used for mountainous area erosion gully control | |
| CN205062827U (en) | Composite seepage-proofing structure of large karst cave in karst area | |
| CN203977437U (en) | The anti-cofferdam structure of breaking through water under a kind of built hydropower complex dam | |
| CN204551500U (en) | Novel cofferdam in a kind of super thick soft foundation | |
| KR101262865B1 (en) | Construction method for cofferdam | |
| CN203080536U (en) | Foundation pit guard structure | |
| CN203821306U (en) | Flexible anti-scour protection pad | |
| CN113818446B (en) | Tunnel foundation pit construction method for traversing non-navigable river channel | |
| CN212335895U (en) | Improved generation assembled mountain area river course shore protection structure | |
| CN215715012U (en) | Bank protection structure | |
| CN102704489B (en) | Foundation pit support structure and construction method thereof | |
| CN204875811U (en) | Combined type multirow stake underground structure | |
| CN211200274U (en) | Assembled channel shore protection structure | |
| CN106939580A (en) | A kind of pipe laying type permeable spur that interlocks | |
| CN203256675U (en) | Wall pile framework structure | |
| CN203144971U (en) | Debris flow drainage structure combining open channel and box culvert | |
| CN103711115B (en) | A kind of ground stabilization of overall transportation by driving formula water-fetching head and joint and construction method | |
| CN111733760A (en) | Improved assembly type mountain river channel revetment structure and construction method thereof | |
| CN206438524U (en) | A kind of geomembrane steel framework cofferdam structure | |
| CN204199238U (en) | Mud-rock flow Composite pile-geonets device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 310002, No. 66, Funing lane, Shangcheng District, Zhejiang, Hangzhou Patentee after: Zhejiang water resources and Hydropower Survey and Design Institute Co.,Ltd. Address before: 310002, No. 66, Funing lane, Shangcheng District, Zhejiang, Hangzhou Patentee before: ZHEJIANG DESIGN INSTITUTE OF WATER CONSERVANCY & HYDROELECTRIC POWER |