CN109113086B - A kind of steel reinforced concrete combined cofferdam construction method in deep water exposed bedrock riverbed area - Google Patents
A kind of steel reinforced concrete combined cofferdam construction method in deep water exposed bedrock riverbed area Download PDFInfo
- Publication number
- CN109113086B CN109113086B CN201811241960.1A CN201811241960A CN109113086B CN 109113086 B CN109113086 B CN 109113086B CN 201811241960 A CN201811241960 A CN 201811241960A CN 109113086 B CN109113086 B CN 109113086B
- Authority
- CN
- China
- Prior art keywords
- cofferdam
- steel
- pile
- double
- wall
- 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.)
- Active
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
Abstract
The invention discloses a kind of steel reinforced concrete combined cofferdam construction methods in deep water exposed bedrock riverbed area, steel reinforced concrete combined cofferdam includes being engaged pile cofferdam and the Double-Wall Steel Boxed Cofferdam at the top of occlusion pile cofferdam, waterborne traffic accident is built first, carry out main structure pile foundation construction, then the interlocking pile cofferdam construction formed that is staggered by interlocking pile A and interlocking pile B is carried out at the bottom according to cofferdam shapes and sizes, the fashioned iron of putting more energy into of setting connection at the top of interlocking pile B, make Double-Wall Steel Boxed Cofferdam, the pouring hole for casting concrete is equipped in the linkage section top sidewall of Double-Wall Steel Boxed Cofferdam lower part；Double-Wall Steel Boxed Cofferdam is accurately positioned by station keeping ship and is aligned, poured water down in steel panel hole capital after selling all securities and be sunken to interlocking pile cofferdam top surface to occlusion pile cofferdam top by aquatic floating and transportation；Using concrete is poured in linkage section, occlusion pile cofferdam and Double-Wall Steel Boxed Cofferdam are linked together and form steel reinforced concrete combined cofferdam.Construction period of the present invention shortens, and construction risk lowers, and environmental pollution is controllable, and project cost is low.
Description
Technical field
The invention belongs to cofferdam construction fields, are related to a kind of foundation in water cofferdam construction method, in particular to a kind of deep water
The steel reinforced concrete combined cofferdam construction method in exposed bedrock riverbed area.
Background technique
Bridge bearing platform construction needs to provide operation dry environment using cofferdam, when deep water (10m or more) mostly uses double-wall steel
Cofferdam carries out foundation in water construction, which has become the main method of modern Longspan Bridge large volume deepwater foundation construction.
Double-wall steel cofferdam construction need to optimize according to particular surroundings such as different geology, navigation condition, the depth of water, basis volume and river flow velocities to be enclosed
Weir design mistake both ensured, accurately sank in place, back cover is tight, drilling platform is set up and mass concrete construction etc.
Safe mass is met the requirements, and need to accelerate progress, saves construction cost.When the deepwater foundation construction for encountering riverbed exposed bedrock
When, Blasting Excavation is generally carried out to basis using underwater demolition technology, Double-Wall Steel Boxed Cofferdam transportation by driving is then transferred into designed elevation
It constructs.But it is often had the following problems using this conventional construction method:
1, decentralization operation in traditional double wall cofferdam needs to carry out basement rock underwater demolition, and cofferdam difficulty of processing is big, construction needs
A large amount of ship machine equipments and recycling difficulty, cost is big, long in time limit；
2, traditional double wall steel cofferdam is constructed, and needs big thickness bottom concrete to meet the substrate stability after drawing water
It is required that (the general depth of water increases by 2~3m, and bottom concrete needs to increase 1m), just considerably increases the depth of excavation of foundation pit in this way,
The deeper anchorage length in further requirement cofferdam, the security risk in Excavation Process are multiplied；
3. traditional double wall steel cofferdam is constructed, rock foundation Excavation Blasting is difficult, and project cost is very high,
It is required that construction period it is very long.
4, underwater demolition is constructed when cofferdam is closed not yet, and with surrounding water connection, environmental pollution is serious, limits this
Engineering method is applied in Ecology protection zone.
It is therefore desirable to design a kind of dedicated cofferdam in deep water exposed bedrock riverbed area and corresponding construction method, on solving
State problem.
Summary of the invention
It is long in time limit the purpose of the present invention is big for traditional double wall steel cofferdam underwater demolition basement rock excavation construction difficulty, it makes
The technological deficiency of valence height etc. provides a kind of simple process and low cost, more environmentally-friendly novel steel reinforced concrete combined cofferdam and construction party
Method.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is that:
A kind of steel reinforced concrete combined cofferdam construction method in deep water exposed bedrock riverbed area, steel reinforced concrete combined cofferdam include that interlocking pile encloses
Weir and the Double-Wall Steel Boxed Cofferdam at the top of occlusion pile cofferdam, which comprises the following steps:
Step 1: building waterborne traffic accident, after main structure stake of constructing, carried out according to cofferdam shapes and sizes at the bottom
Interlocking pile cofferdam construction, occlusion pile cofferdam is staggered and is formed by interlocking pile A and interlocking pile B, and is arranged at the top of interlocking pile B and is connected
The fashioned iron of putting more energy into connect；
Step 2: making Double-Wall Steel Boxed Cofferdam according to cofferdam size, shape and the construction area depth of water, the double-wall steel encloses
The cofferdam wall top on weir is the conventional section of prior art traditional structure, and lower part is linkage section, and linkage section lower hollow is connecting
Section top sidewall is equipped with the pouring hole for being poured concrete；
Step 3: Double-Wall Steel Boxed Cofferdam is passed through aquatic floating and transportation to occlusion pile cofferdam top；
It is aligned Step 4: being accurately positioned by station keeping ship, and under pouring water in the cofferdam steel panel hole capital after selling all securities of Double-Wall Steel Boxed Cofferdam
It is heavy, the Double-Wall Steel Boxed Cofferdam sinking on the water surface is placed in occlusion pile cofferdam top surface；
Step 5: be poured concrete in linkage section by pouring hole, concrete is from one of pouring hole into, water from it
He comes out pouring hole, and water in linkage section is cemented out, after concrete setting, i.e. completion steel reinforced concrete combined cofferdam construction.
As an improvement, building waterborne traffic accident is to set up water drilling platform, and support by steel-pipe pile in step 1
It is anchored on riverbed basement rock.
As an improvement, first construct interlocking pile A when interlocking pile cofferdam construction, then construct in adjacent interlocking pile A interval region
Interlocking pile B forms continuous closed occluding pile wall cofferdam.
As an improvement, having steel pile casting in stake holes location arrangements where interlocking pile A, steel pile casting is using slotting when interlocking pile A constructs
Play is squeezed into underwater basement rock, and steel pile casting is made to extend into rock design position and rock bolting, using high-power in steel pile casting
Rotary digging drilled as holes, then transfer steel reinforcement cage and retarded concrete is perfused.
As an improvement, cutting adjacent interlocking pile with casing convolution after interlocking pile A constructs casting retarded concrete initial set
The area A Die He forms interlocking pile B stake holes, then transfers steel reinforcement cage concrete perfusion and forms interlocking pile B, and enters in interlocking pile B tip cutting
Fashioned iron of putting more energy into for connection.
As an improvement, the Double-Wall Steel Boxed Cofferdam is rectangle cofferdam, during the cofferdam wall in rectangle cofferdam is passed through by inside and outside steel panel
Between steel truss be connected to form, the conventional section bottom of cofferdam wall is equipped with closing steel plate, forms the box-structure that can be kept afloat, even
Connecing section bottom is open end, and the steel panel of linkage section top-side is equipped with pouring hole, and when linkage section is poured, concrete is from wherein one
A pouring hole is into water comes out from other pouring holes, completes the displacement of water and concrete, after replacing, concrete setting, in double-walled
The connection structure of sealing is formed between steel cofferdam and occlusion pile cofferdam.
As an improvement, being additionally provided with several partitions between steel panel inside and outside the conventional section of the Double-Wall Steel Boxed Cofferdam, lead to
Cross partition and space between steel panel inside and outside conventional section be divided into several independent hole capitals after selling all securities, by toward hole capital after selling all securities water injection rate and
Waterflood injection rate, the posture and speed that adjustable Double-Wall Steel Boxed Cofferdam sinks.
As an improvement, being reinforced on the inside of two long side cofferdam walls in the rectangle cofferdam by inner support, the inner support is
The type steel support structure being connected to form by more support rods, type steel support structure is in the vertical every interval 3m ~ 5m layering setting.
As an improvement, type steel support structure, on the in-plane with steel panel, more support rods assume diamond in shape or rectangle point
Cloth.
As an improvement, the fashioned iron of putting more energy into is made of I-steel, channel steel, H profile steel or square steel.
It the present invention and traditional cofferdam construction main distinction and has the beneficial effect that
(1) Bridge Pier Construction waterborne is become dry environment closing explosion from underwater demolition by the present invention, and difficulty of construction lowers, explosion
To horizontal pollution-free；(2) due to occlusion pile cofferdam anchoring, impermeability is strong, and is basement rock under cushion cap, can reduce even cancellation and pass
The system necessary bottom concrete of double-wall steel cofferdam construction, further reduces the Blasting Excavation project amount and bottom concrete of basement rock
The engineering quantity of project amount and cofferdam；(3) compresses lower section Double-Wall Steel Boxed Cofferdam is replaced with armored concrete occlusion pile cofferdam, engineering is made
It is objective that valence reduces.The present invention is double with tradition by a kind of deep water exposed bedrock riverbed area steel reinforced concrete combined cofferdam and its construction method
Wall steel cofferdam is compared, and engineering difficulty lowers significantly, and construction period shortens, and construction risk lowers, and environmental pollution is controllable, project cost
It saves, is a kind of construction method very competitive in the area's foundation construction of deep water exposed bedrock riverbed.
Detailed description of the invention
Fig. 1 is steel reinforced concrete combined cofferdam elevational schematic view of the present invention.
Fig. 2 is present invention occlusion pile cofferdam and Double-Wall Steel Boxed Cofferdam connection relationship diagram.
Fig. 3 is present invention occlusion pile cofferdam and Double-Wall Steel Boxed Cofferdam connection relationship elevational schematic view.
Fig. 4 is steel reinforced concrete combined cofferdam floor map of the present invention.
Fig. 5 is the occlusion pile cofferdam floor map of lower part of the present invention.
Fig. 6 is the Double-Wall Steel Boxed Cofferdam floor map on top of the present invention.
Fig. 7 is the pile foundation of bearing platform construction schematic diagram of construction technology process of the present invention.
Fig. 8 is the interlocking pile cofferdam construction schematic diagram of the lower part of construction technology process of the present invention.
Fig. 9 is the double-wall steel cofferdam construction schematic diagram on the top of construction technology process of the present invention.
Figure 10 is the Double-Wall Steel Boxed Cofferdam and occlusion pile cofferdam combination connection schematic diagram of construction technology process of the present invention.
1- hole capital after selling all securities, 2- pile concrete, 4- basement rock, 5- working water level, 6- steel pile casting, 7- cone mouth concrete perfusion conduit,
11- steel panel, 12- bracing members, 13- inner support, 14- linkage section, 15- connection section concrete, 16- routine section, 17- pouring hole,
18- partition, 19- Double-Wall Steel Boxed Cofferdam, 21- are engaged pile cofferdam, and 211- interlocking pile A, 212- interlocking pile B, 22- put more energy into fashioned iron, 23- envelope
Close steel plate, 31- cushion cap, 32- main structure stake, 33- bridge pier, 51- water drilling platform, 52- steel-pipe pile.
Specific embodiment
With reference to the accompanying drawing to mode of the invention and implementation steps further instruction, convenient for this hair is well understood
It is bright, but they limiting the invention.
As shown in Figures 1 to 6, the invention discloses a kind of steel reinforced concrete combined cofferdams in deep water exposed bedrock riverbed area, mainly
It is composed of the Double-Wall Steel Boxed Cofferdam 19 on top and the occlusion pile cofferdam 21 of lower part.Main Construction Principle are as follows: use pile foundation construction
Lower part enters rock section occlusion pile cofferdam 21, gives full play to the technological advantage that pile monkey facilitates penetration of basement rock 4, is folded and formed by single pile
Armored concrete is engaged pile cofferdam, then according still further to the Double-Wall Steel Boxed Cofferdam 19 on traditional method construction top, and stings with lower part
It closes pile cofferdam 21 to be attached by fashioned iron 22 of putting more energy into, forms closed steel reinforced concrete combined cofferdam, then drain steel reinforced concrete combined cofferdam
Interior water, completes 4 explosion of basement rock under dry operating environment, and cushion cap 31 is constructed.
Wherein, as shown in Figure 4 and Figure 5, the occlusion pile cofferdam 21 is reinforced concrete pile walled weir, and effective thickness is big
In the cofferdam wall thickness of top Double-Wall Steel Boxed Cofferdam 19.Occlusion pile cofferdam 21 is staggered by interlocking pile A 211, interlocking pile B 212, is stung
It closes stacked and forms closed " piling wall " cofferdam of seamless RC Continuous.
As shown in Figures 2 and 3, the cofferdam wall of the Double-Wall Steel Boxed Cofferdam 19 steel panel 11 inside and outside passes through intermediate steel truss
Frame is connected to form, and 16 bottom of cofferdam wall routine section of Double-Wall Steel Boxed Cofferdam 19 is equipped with closing steel plate 23, guarantees cofferdam transportation by driving Shi Bujin
Water increases suspending power, forms the box-structure that can be kept afloat, 14 bottom of linkage section is open end, and linkage section 14 pushes up
The steel panel 11 of portion side is equipped with pouring hole 17, when linkage section 14 is poured, connects section concrete 15 from one of pouring hole 17
Into water comes out from other pouring holes 17, completes water and connects the displacement of section concrete 15, after replacing, connects section concrete 15
Solidification forms the connection structure of sealing between Double-Wall Steel Boxed Cofferdam 19 and occlusion pile cofferdam 21.The Double-Wall Steel Boxed Cofferdam 19 it is normal
Several partitions 18 are additionally provided between steel panel 11 inside and outside rule section 16, by partition 18 by steel inside and outside conventional section 16
Space is divided into several independent hole capitals after selling all securities 1 between siding 11, passes through past 1 water injection rate of hole capital after selling all securities and waterflood injection rate, adjustable double-walled
The posture and speed that steel cofferdam 19 sinks, and then guarantee stabilization when Double-Wall Steel Boxed Cofferdam 19 declines and be convenient for Double-Wall Steel Boxed Cofferdam 19
With the connection of occlusion 21 position of pile cofferdam.
As shown in figure 4, general 19 global sections of Double-Wall Steel Boxed Cofferdam are rectangle, it is whole strong in order to increase Double-Wall Steel Boxed Cofferdam 19
Degree, can also be arranged inner support 13 between two long side cofferdam walls in the rectangle cofferdam of rectangle, in being connected for four angles of rectangle
The bracing members 12 of support strength are arranged to add between side.The inner support 13 is the fashioned iron being connected to form by more support rods
Support construction, type steel support structure is in the vertical every interval 3m ~ 5m layering setting, and type steel support structure is in the plane with steel panel 11
On direction, more support rods assume diamond in shape or distributed rectangular.
A kind of exposed riverbed area steel reinforced concrete combined cofferdam of deep water basement rock 4 of the invention, corresponding construction technology are as follows:
Main structure stake 32 is carried out first to construct: being set up water drilling platform 51, and is anchored at by the support of steel-pipe pile 52
On riverbed basement rock 4, location arrangements steel pile casting 6 then is pushed up in main structure stake 32 and is isolated with water body, it can when wherein steel pile casting 6 is constructed
The method for adopting heavy jump bit inserting piling steel pile casting 6, makes steel pile casting 6 extend into rock design position and rock bolting.Then lead to again
It crosses drilling hole burst pile foundation or the main structure stake to form cushion cap 31 is perfused in high-power churning driven construction rock stake holes, decentralization steel reinforcement cage
32.It carries out occlusion pile cofferdam 21 after the completion of the construction of main structure stake 32 to construct, occlusion pile cofferdam 21 is by interlocking pile A 211, occlusion
Stake B 212 is staggered, and occlusion is stacked and forms closed " piling wall " cofferdam of seamless RC Continuous.It is first applied when construction
Work interlocking pile A 211, pushing up location arrangements in interlocking pile A 211 has steel pile casting 6, then passes through drilling hole burst pile foundation or high-power rotation
It digs and bores construction rock stake holes, transfer steel reinforcement cage, and retarded concrete under priming petock, the retarded concrete initial set of interlocking pile A 211
Afterwards, then with casing convolution the area the Die He pore-forming of adjacent interlocking pile A 211, the decentralization steel reinforcement cage perfusion formation of pile concrete 2 are cut
Interlocking pile B 212, and enter to put more energy into fashioned iron 22 in 212 tip cutting of interlocking pile B, it is whole to be connected into the Double-Wall Steel Boxed Cofferdam 19 on top
Body.The fashioned iron 22 of putting more energy into is mostly I-steel, channel steel, H profile steel or square steel, and 22 lower section of fashioned iron of putting more energy into is inserted into interlocking pile B 212 and pushes up
End, reinforces the bearing capacity in cofferdam, and length is determined according to calculating.22 upper section of fashioned iron of putting more energy into is inserted into the lower part connection of Double-Wall Steel Boxed Cofferdam 19
In section 14, and by the pouring hole in linkage section top-side steel panel, perfusion connection section concrete 15 will in linkage section 14
The Double-Wall Steel Boxed Cofferdam 19 on top and the occlusion pile cofferdam 21 of lower part connect integral, formation steel reinforced concrete combined cofferdam, and guarantee to connect
The sealing of section 14 is water-tight.
After the completion of the connection of steel reinforced concrete combined cofferdam upper and lower, steel reinforced concrete combined cofferdam internal water accumulation is drained, base is excavated in surface blasting
Then rock 4 is leveled using concrete to 31 bottom of cushion cap, carries out the construction of 31 mass concrete of cushion cap.The construction of cushion cap 31 is completed
Afterwards, it pours 33 pier shaft concrete of bridge pier to bridge pier 33 and exposes the certain safe distance of working water level or more.It constructs and completes to bridge pier 33
The dismounting of steel reinforced concrete combined cofferdam is carried out afterwards, and cutting is needed to cut 19 piecemeal of Double-Wall Steel Boxed Cofferdam, then be sling one by one, from upper when cutting
The steel panel 11 and inner support 13 of Double-Wall Steel Boxed Cofferdam 19 are alternately cut and disassembled to lower leaf, until hollow section near closing steel plate 23
Plane completes underwater project construction.
Claims (10)
1. a kind of steel reinforced concrete combined cofferdam construction method in deep water exposed bedrock riverbed area, steel reinforced concrete combined cofferdam includes occlusion pile cofferdam
With the Double-Wall Steel Boxed Cofferdam being set at the top of occlusion pile cofferdam, which comprises the following steps:
Step 1: building waterborne traffic accident, constructs after main structure stake, be engaged according to cofferdam shapes and sizes at the bottom
Pile cofferdam construction, occlusion pile cofferdam are staggered and are formed by interlocking pile A and interlocking pile B, and setting connection is used at the top of interlocking pile B
Fashioned iron of putting more energy into；
Step 2: Double-Wall Steel Boxed Cofferdam is made according to cofferdam size, shape and the construction area depth of water, the Double-Wall Steel Boxed Cofferdam
Cofferdam wall top be prior art traditional structure conventional section, lower part is linkage section, linkage section lower hollow, on linkage section top
Portion's side wall is equipped with the pouring hole for being poured concrete；
Step 3: Double-Wall Steel Boxed Cofferdam is passed through aquatic floating and transportation to occlusion pile cofferdam top；
It is aligned Step 4: being accurately positioned by station keeping ship, and sinking of pouring water in the cofferdam steel panel hole capital after selling all securities of Double-Wall Steel Boxed Cofferdam, it will
Double-Wall Steel Boxed Cofferdam sinking on the water surface is placed in occlusion pile cofferdam top surface；
Step 5: being poured concrete in linkage section by pouring hole, concrete is from one of pouring hole into water is poured from other
It builds hole to come out, water in linkage section is cemented out, after concrete setting, i.e. completion steel reinforced concrete combined cofferdam construction.
2. steel reinforced concrete combined cofferdam construction method as described in claim 1, it is characterised in that: in step 1, build over-water construction
Platform is to set up water drilling platform, and be anchored on riverbed basement rock by steel-pipe pile support.
3. steel reinforced concrete combined cofferdam construction method as claimed in claim 2, it is characterised in that: when interlocking pile cofferdam construction, first apply
Work interlocking pile A forms continuous closed occluding pile wall cofferdam then in adjacent interlocking pile A interval region construction interlocking pile B.
4. steel reinforced concrete combined cofferdam construction method as claimed in claim 3, it is characterised in that: when interlocking pile A constructs, in interlocking pile
Stake holes location arrangements where A have steel pile casting, and steel pile casting is squeezed into underwater basement rock using inserting piling method, so that steel pile casting is extend into rock and set
Position and rock bolting are counted, high-power rotary digging drilled as holes is used in steel pile casting, then transfer steel reinforcement cage and retarded concrete is perfused.
5. steel reinforced concrete combined cofferdam construction method as claimed in claim 4, it is characterised in that: construct in interlocking pile A and be poured slow setting
After concrete initial set, the adjacent interlocking pile area A Die He is cut with casing convolution and forms interlocking pile B stake holes, then transfers steel reinforcement cage
Concrete perfusion forms interlocking pile B, and enters the fashioned iron of putting more energy into for connection in interlocking pile B tip cutting.
6. steel reinforced concrete combined cofferdam construction method as described in claim 1, it is characterised in that: the Double-Wall Steel Boxed Cofferdam is rectangle
The cofferdam wall on weir, rectangle cofferdam is made up of inside and outside steel panel the connection of intermediate steel truss, and the conventional section bottom of cofferdam wall is equipped with
Steel plate is closed, the box-structure that can be kept afloat is formed, linkage section bottom is open end, the steel panel of linkage section top-side
Equipped with pouring hole, when linkage section is poured, concrete from one of pouring hole into, water comes out from other pouring holes, complete water and
The displacement of concrete, after replacing, concrete setting forms the connection knot of sealing between Double-Wall Steel Boxed Cofferdam and occlusion pile cofferdam
Structure.
7. steel reinforced concrete combined cofferdam construction method as claimed in claim 6, it is characterised in that: the conventional section of the Double-Wall Steel Boxed Cofferdam
Inside and outside be additionally provided with several partitions between steel panel, by partition by space between steel panel inside and outside conventional section point
Be cut into several independent hole capitals after selling all securities, by posture that toward hole capital after selling all securities water injection rate and waterflood injection rate, adjustable Double-Wall Steel Boxed Cofferdam sinks and
Speed.
8. steel reinforced concrete combined cofferdam construction method as claimed in claim 6, it is characterised in that: two long sides in the rectangle cofferdam
It is reinforced on the inside of the wall of cofferdam by inner support, the inner support is the type steel support structure being connected to form by more support rods, fashioned iron
Support construction is in the vertical every interval 3m ~ 5m layering setting.
9. steel reinforced concrete combined cofferdam construction method as claimed in claim 8, it is characterised in that: type steel support structure with steel panel
In-plane on, more support rods assume diamond in shape or distributed rectangular.
10. steel reinforced concrete combined cofferdam construction method as described in any one of claims 1-9, it is characterised in that: the type of putting more energy into
Steel is made of I-steel, channel steel, H profile steel or square steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811241960.1A CN109113086B (en) | 2018-10-24 | 2018-10-24 | A kind of steel reinforced concrete combined cofferdam construction method in deep water exposed bedrock riverbed area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811241960.1A CN109113086B (en) | 2018-10-24 | 2018-10-24 | A kind of steel reinforced concrete combined cofferdam construction method in deep water exposed bedrock riverbed area |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109113086A CN109113086A (en) | 2019-01-01 |
| CN109113086B true CN109113086B (en) | 2019-08-20 |
Family
ID=64855528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811241960.1A Active CN109113086B (en) | 2018-10-24 | 2018-10-24 | A kind of steel reinforced concrete combined cofferdam construction method in deep water exposed bedrock riverbed area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109113086B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109914449A (en) * | 2019-03-30 | 2019-06-21 | 四川公路桥梁建设集团有限公司 | A kind of 8-shaped occlusion pile cofferdam and construction technology |
| CN110144915A (en) * | 2019-06-03 | 2019-08-20 | 四川公路桥梁建设集团有限公司 | 8-shaped interlocking pile-double-wall steel combined cofferdam and construction manipulation process |
| CN111608173B (en) * | 2020-06-04 | 2022-05-20 | 石家庄铁道大学 | Construction method and device for bare rock drilled pile on deep water steep slope |
| CN112609591A (en) * | 2020-12-22 | 2021-04-06 | 中铁建大桥工程局集团第一工程有限公司 | Construction method for deep-water shallow-covering-layer fully-socketed bridge foundation |
| CN114263199B (en) * | 2021-12-16 | 2023-06-27 | 中交三公局第三工程有限公司 | Double-wall steel cofferdam for lowering bare rock and shallow coverage river reach jack |
| CN115045308B (en) * | 2022-06-08 | 2023-04-14 | 中交第四航务工程勘察设计院有限公司 | Sitting bed type double-wall steel cofferdam structure based on deep cement mixing pile and construction method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200964585Y (en) * | 2006-04-12 | 2007-10-24 | 昆明捷程桩工有限责任公司 | All-bushing perfusion stake bitten cement earth stake |
| CN101358453A (en) * | 2008-08-21 | 2009-02-04 | 中铁大桥局股份有限公司 | Composite boxed cofferdam and building method thereof |
| CN201334671Y (en) * | 2008-12-26 | 2009-10-28 | 中铁大桥局股份有限公司 | Assembled cofferdam |
| CN205035815U (en) * | 2015-07-16 | 2016-02-17 | 中铁大桥局集团有限公司 | Steel reinforced concrete combination cofferdam |
-
2018
- 2018-10-24 CN CN201811241960.1A patent/CN109113086B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| 桥梁深水基础钢混围堰设计与施工技术在轨道交通中的应用;王成;《铁道勘察》;20161231(第6期);第94-97页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109113086A (en) | 2019-01-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109113086B (en) | A kind of steel reinforced concrete combined cofferdam construction method in deep water exposed bedrock riverbed area | |
| CN106638640B (en) | Construction method without bottom concrete combined type cofferdam under the conditions of formation geology | |
| EP2837554A1 (en) | Partially floating marine platform for offshore wind-power, bridges and marine buildings, and construction method | |
| CN102561371B (en) | Steel caisson enclosure structure at island-tunnel combination part and construction method thereof | |
| CN102322069B (en) | Underwater combination base of open caisson and steel pipe piles and construction method | |
| CN105133558B (en) | Deep water drift net platform and its construction method | |
| CN110468833A (en) | Drilled grouting piles under water constructing device and its application method for cruiseway | |
| CN109780325A (en) | A kind of water factory's water intaking tunnel submarine pipeline installation method | |
| CN106930276A (en) | The deep hole blasting of rotary digging bored concrete pile and the construction method of conduit rotary digging removing obstacles | |
| CN107514006A (en) | It is a kind of to build island operation construction method for shallow sea or shallow river bridge foundation | |
| CN106320333A (en) | Row type water cast-in-place pile device and construction method | |
| CN113550340A (en) | Construction method of deepwater foundation of double-wall steel cofferdam without sealing bottom under deepwater rock entering condition | |
| CN105544575A (en) | Underwater bottom sealing concrete construction method using steel truss for reinforcement | |
| CN105649094B (en) | A kind of deep water foundation bearing platform construction three wall steel cofferdams and its construction method | |
| US3624702A (en) | Offshore platform support | |
| CN110359476A (en) | A kind of construction method of steel sheet-pile cofferdam inner support and drilled pile steel pile casting installation operation platform | |
| CN209194552U (en) | A kind of combined cofferdam for bridge foundation construction | |
| CN109339079A (en) | A kind of foundation pit water-stopping system and its construction technology close to river permeable stratum | |
| CN210315632U (en) | Annular underground diaphragm wall foundation of large-span arch bridge in deep coverage area | |
| CN109707002B (en) | Device and method for accurately positioning, sinking and installing large water intake head | |
| CN107620316A (en) | A kind of rocky bed large volume deepwater foundation construction method | |
| CN106223355A (en) | A kind of high bearing platform supported on piles in deep water Hold Hoop method has device and the construction method of end steel jacket box | |
| RU2386755C1 (en) | Method for arrangement of shallow subway at water area bottom | |
| CN206448285U (en) | Without bottom concrete combined type cofferdam under the conditions of formation geology | |
| CN101555692A (en) | Dewatering earth-taking construction method for foundation pit on water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |