CN109371901A - Withered phase cofferdam pile formula barricade and construction method - Google Patents
Withered phase cofferdam pile formula barricade and construction method Download PDFInfo
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- CN109371901A CN109371901A CN201811495576.4A CN201811495576A CN109371901A CN 109371901 A CN109371901 A CN 109371901A CN 201811495576 A CN201811495576 A CN 201811495576A CN 109371901 A CN109371901 A CN 109371901A
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- water fender
- cushion cap
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- 238000010276 construction Methods 0.000 title claims abstract description 80
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 143
- 239000004567 concrete Substances 0.000 claims abstract description 70
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 64
- 239000010959 steel Substances 0.000 claims abstract description 64
- 230000004888 barrier function Effects 0.000 claims abstract description 22
- 238000011049 filling Methods 0.000 claims abstract description 9
- 238000009417 prefabrication Methods 0.000 claims abstract description 7
- 239000011435 rock Substances 0.000 claims description 22
- 239000002689 soil Substances 0.000 claims description 21
- 239000004744 fabric Substances 0.000 claims description 14
- 239000004568 cement Substances 0.000 claims description 13
- 239000004575 stone Substances 0.000 claims description 13
- 239000011150 reinforced concrete Substances 0.000 claims description 11
- 238000011065 in-situ storage Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 238000004078 waterproofing Methods 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 4
- 238000009412 basement excavation Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 claims description 3
- 230000010412 perfusion Effects 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims description 2
- 238000005345 coagulation Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000005266 casting Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 6
- 241001270131 Agaricus moelleri Species 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000002627 tracheal intubation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
- E02B3/066—Quays
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
-
- 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)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Revetment (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses withered phase cofferdam pile formula barricade and construction method, withered phase cofferdam pile formula Retaining wall is convenient, can save manpower, and construction efficiency is high, has good economic technology benefit.The invention also discloses the construction methods of withered phase cofferdam pile formula barricade, mainly comprising steps of Construction Arrangement, it fills in cofferdam, build island compacting, jet grouted barrier wall construction, prefabricated assembled prefabricated cushion cap, prefabrication cast-in-place concrete barricade regularization template, place separated steel casing, stablize steel pile casting, filling pile construction, place prefabricated assembled prefabricated cushion cap, place cast-in-place concrete barricade regularization template, cast-in-place concrete Retaining wall, prefabricated water fender, place water fender, it is easy for construction, manpower can be saved, construction efficiency is high, with good economic technology benefit.
Description
Technical field
The invention belongs to water conservancy and hydropower foundation construction technical fields, and in particular to withered phase cofferdam pile formula barricade and construction party
Method.
Background technique
In entire hydraulic engineering, cofferdam is to build the main mesh in cofferdam to provide the temporay building of evermore services
Be that can be drained for the place built and casting, surface because the reason of water and soil bore construction, the engineering construction after being also conducive to,
Therefore the reason of reality must be combined during construction, consider height, geological condition, temperature and weather of water level etc.
Carry out cofferdam construction.
It constructs in the place with flood season, not only to consider the design in cofferdam, the time point of cofferdam construction and the effect of construction
Rate and speed are similarly important.If operation platform poor quality at cofferdam will affect the main body construction in later period；If speed of application
It crosses slowly, cofferdam construction or foundation construction can not be completed in dry season, will equally be brought to the construction in later period and construction quality
It influences.It is filled out in addition, building island cofferdam and generally being enclosed using native stone, bored concrete pile is difficult into hole forming, often results in the feelings of pile quality difference
Condition.
It is urgent for the above water conservancy and hydropower foundation construction duration, situations such as piling quality is insufficient, need to invent a kind of letter
Single effective withered phase cofferdam construction method improves construction efficiency, guarantees base while accelerating construction progress to simplify construction process
The quality of plinth construction, while can economize on resources, reduce construction waste.
Summary of the invention
The object of the present invention is to provide withered phase cofferdam pile formula barricade and construction methods, can solve water conservancy and hydropower basis
Construction work amount lacks greatly duration deficiency, and the not excellent disadvantage of construction quality guarantees the convenience and economy of construction, improves construction matter
Amount accelerates construction rate, has good economic technology benefit.
In order to achieve the above object, major technique solution of the invention is to provide withered phase cofferdam pile formula barricade, including equal
Barricade component, block stone mask, pile foundation construction with artificial island platform and water blocking component in situ shape line, the barricade component packet are set
Sequentially connected embedded rock pile, pile foundation support table and concrete guard wall from top to bottom are included, the embedded rock pile is arranged in situ shape line, institute
Stating water blocking component includes setting jet grouted barrier wall, prefabricated water fender and earth rock cofferdam, and jet grouted barrier wall is arranged in situ shape line,
Prefabricated water fender is arranged on jet grouted barrier wall, fills to form earth rock cofferdam by cofferdam on former form line, former form line is mentioned
Construction requirement absolute altitude is risen to, pile foundation construction with artificial island platform is formed, earth rock cofferdam abuts jet grouted barrier wall, pile foundation construction with artificial island platform
The side that meets water of concrete guard wall is set, and the land side of concrete guard wall is arranged in block stone mask.
The pile foundation support table is the prefabricated cushion cap of pile foundation, including multiple end to end prefabricated cushion caps, phase
Cushion cap connecting hole is connected and is formed between adjacent prefabricated cushion cap by cushion cap connecting lateral plate, in prefabricated cushion cap
It is preset with cushion cap connection reserving rib, stake top stripping is connected at the top of embedded rock pile and stays a core, be preset in embedded rock pile and stayed through stake top stripping
The pre-buried high-strength dowel of stake top of stake core, cushion cap, which connects, to be anchored by cushion cap connecting partition between reserving rib and connects stake top
Pre-buried high-strength dowel, pile foundation support table are placed on expanding at the top of pile body, and stake top stripping is stayed in a core insertion cushion cap connecting hole, cushion cap
Connecting hole is packed with grouting body.
The prefabricated water fender includes prefabricated assembling type reinforced concrete water fender and steel truss assembly water fender, and reinforcing bar is mixed
By the horizontal tongue and groove bolt of water fender between solidifying soil water fender, armored concrete water fender and water fender bottom plate are perpendicular by water fender
It is bolted to tongue and groove, water fender bottom plate is connect with soil cement plate at the top of cut-pff wall by pre-buried fixed earth anchor, the armored concrete
Water fender land side is reinforced by water fender rib column and oblique strut, water fender rib column with armored concrete water fender and water blocking
Board bottom plate is connected and fixed, and oblique strut both ends connect with soil cement plate at the top of armored concrete water fender and cut-pff wall solid respectively
Fixed, the armored concrete water fender upstream face is equipped with external monoblock type waterproof cloth, and it is swollen to meet water for bonding at the vertical tongue and groove of water fender
Swollen rubber strip, water fender bottom plate glue barrier rubber item, and the horizontal tongue and groove setting of the water fender of armored concrete water fender junction is met
Water-expansible rubber item.
The steel truss assembly water fender includes steel truss, the fixed bottom plate of truss, the symmetrical ballast of truss, truss side plate and outer
Rolling integral waterproofing cloth, the fixed bottom plate of steel truss bottom truss frame for connecting are set, the fixed bottom plate of the truss is anchored in antiseepage
Wall top portion soil cement plate top, steel truss two sides are placed with the symmetrical ballast of a truss, and to be provided centrally with truss pre- for steel truss
The vertical pull rod of stress, the truss side plate and external rolling integral waterproofing cloth are all set in steel truss and meet water side, truss side plate
Surface is coated with coil waterproof layer.
The invention also discloses the construction methods of withered phase cofferdam pile formula barricade, comprising the following steps:
1) Construction Arrangement: in scope of design, prepare water power and tool, material and cofferdam constructing soil stone that construction needs
Material, carries out construction safety, environmental protection measure；
2) cofferdam is filled: in situ shape line, directly being transported from excavation area to cofferdam by dumper and is backfilled position, layering is applied
Work, cofferdam reclamation work amount are concentrated mainly on concrete guard wall and meet water side, according to field condition from upstream and downstream end its at the beginning
It attacks and occupies or is attacked and occupied in opposite directions from upstream and downstream end respectively；
3) build island compacting: flat material using bull-dozer carries out construction and with vibrating roller grinding compacting, and slope surface is aided with using backhoe
It is manually modified, guarantees that slope surface is smooth；
4) jet grouted barrier wall is constructed: each whirl spraying hole point sequence of jet grouted barrier wall is constructed, and is partitioned into wall section, is then joined into whole
Wall；
5) pile foundation support table is constructed: according to prefabricated multiple prefabricated the holding for being preset with cushion cap connection reserving rib of design requirement
Then platform connects and composes pile foundation support table；
6) prefabrication cast-in-place concrete barricade regularization template: according to design requirement prefabrication cast-in-place concrete barricade regularization mould
Plate；
7) Pile: on the position of in situ shape line design requirement pile foundation, separated steel casing is placed, in its center
Pre-buried stationary positioned bar sets casing movable floor and bottom plate lifting rod in separated steel casing, then in separated steel casing
Boom prefabricated section ballast is placed to keep stablizing；Extract the casing movable floor and boom prefabricated section pressure of bottom plate lifting rod and its connection
Weight, concrete perfusion；
8) pile foundation support table installation: pile foundation support table is equipped to embedded rock pile, by staying a core insertion to hold stake top stripping
In platform connecting hole, then cushion cap connecting hole filling grouting body realization is connected and fixed；
9) cast-in-place concrete barricade regularization template, concrete cast-in-place concrete Retaining wall: are placed on pile foundation support table
It is poured, cast-in-place concrete barricade regularization template is then moved to by lower section barricade position by template traction mechanism, then
Secondary carry out concreting, until completing the construction of entire barricade；
10) prefabricated water fender: according to construction site hydrological geological conditions and water level conditions, assembled steel reinforced coagulation is selected
Native water fender or steel truss assembly water fender, and it is prefabricated；
11) it places water fender: placing water fender and according to design requirement assembly to requiring absolute altitude and length.
The cast-in-place concrete barricade regularization template includes that side form, barricade open-close type end mould, mould are reinforced in barricade regularization
Adjustable at the top of plate to support vertical framed bent and template traction mechanism to stay bolt frame, side form, side form point is reinforced in two barricade regularization
It is adjustable to stay bolt frame both ends composition main template body that it is not connected to die head, barricade open-close type end mould is arranged in main template body two
End, main template body two sides are equipped with a side form and support vertical framed bent to support barricade regularization to reinforce side form, pile foundation support table
It is equipped with the preset fixing piece of cushion cap, side form supports vertical framed bent to be connected and fixed with the preset fixing piece of cushion cap.
The template traction mechanism includes template hitch frame, template assembly and disassembly component, vertical Power Component and main template body two
A side form sliding rail is provided on the pile foundation support table of side, the template assembly and disassembly component includes the water that main template body both ends are equipped with
The tight component of flat-top and a horizontal demoulding component, it includes that level holds out against jack and level holds out against jack company that level, which holds out against component,
The level being arranged on pile foundation support table being connected to holds out against jack backboard, and level demoulding component includes horizontal lifting jack for demoulding and water
Flat lifting jack for demoulding backboard, the vertical Power Component include that the vertical jack that is equipped with of pile foundation support table shelves pedestal and vertical
Jack shelves the vertical jack for jacking up main template body being equipped in pedestal, and the template hitch frame is located at main template body
Outside, and by wirerope it is connect with main template body.Jack backboard provides counter-force and pulls outward punching block, helps to demould, can prevent
Concrete is damaged during demoulding.
It is described 5) in, it is first that multiple prefabricated cushion caps are end to end, pass through between adjacent prefabricated cushion cap
Cushion cap connecting lateral plate connects and is formed with cushion cap connecting hole, is anchored between cushion cap connection reserving rib by cushion cap connecting partition
And the pre-buried high-strength dowel of stake top is connected, stake top stripping is stayed in a core insertion cushion cap connecting hole, cushion cap connecting hole filling grouting body.
The present invention have the characteristics that it is following and the utility model has the advantages that
(1) the pre- production of prefabricated cushion cap and cast-in-place concrete barricade regularization template while operation is filled in cofferdam
Industry, without waiting for can directly assemble prefabricated assembled cushion cap within 28 days, substantially reduces construction work after the completion of filling pile construction
Phase.
(2) in earth rock cofferdam ground, separated steel casing is placed, the position of separated steel casing stable system pile foundation is utilized
It sets, guarantees the quality of pile foundation.
(3) two kinds of alternatives are provided at prefabricated water fender: assembled steel reinforced concrete water fender and steel truss are spelled
Water fender is filled to replace traditional packeted soil stone water blocking, the surging situation of water level can be successfully managed, guarantees construction environment
Detailed description of the invention
Fig. 1 is the withered phase cofferdam pile formula barricade of the present invention and operation platform schematic diagram；
Fig. 2 is separated pile casing schematic diagram of the present invention；
Fig. 3 is the prefabricated cushion cap schematic diagram of pile foundation of the present invention；
Fig. 4 is the prefabricated cushion cap connection schematic diagram of the present invention；
Fig. 5 is pile formula cast-in-place concrete barricade regularization template schematic diagram of the present invention；
Fig. 6 is prefabricated assembling type reinforced concrete water fender schematic diagram of the present invention；
Fig. 7 is pile formula cast-in-place concrete barricade regularization template demoulding schematic diagram of the present invention；
Fig. 8 is cast-in-place concrete Retaining wall template sliding schematic diagram of the present invention
Fig. 9 is prefabricated reinforced concrete water fender schematic diagram of the present invention
Figure 10 is prefabricated reinforced concrete water fender side schematic view of the present invention；
Figure 11 is steel truss assembly water fender schematic diagram of the present invention；
Figure 12 is steel truss assembly front elevation of the present invention；
Figure 13 is the withered phase cofferdam pile formula barricade of the present invention and construction method and construction process figure.
Wherein: 1- embedded rock pile, 2- pile foundation support table, 3- concrete guard wall, 4- block stone mask, 5- earth rock cofferdam, 6- high spray are anti-
Infiltration wall, the prefabricated water fender of 7-, 8- original form line, 9- pile foundation construction with artificial island platform, 10- separated steel casing, 11- casing bottom are put
Plate, 12- casing movable floor, 13- stationary positioned bar, 14- bottom plate lifting rod, 15- boom prefabricated section ballast, 16- stake top are reserved
Expanding at the top of muscle, 17- pile body, 18- stake top stripping stay the pre-buried high-strength dowel of a core, 19- stake top, 20- dowel annular bottom plate,
The prefabricated cushion cap of 21-, 22- cushion cap connecting hole, 23- cushion cap connecting partition, 24- connection grouting body, the connection of 25- cushion cap are reserved
Muscle, 26- cushion cap connecting lateral plate, 27- cushion cap reserve embeded slot, 29- barricade regularization reinforce side form, 30- barricade open-close type end mould,
31- side form sliding rail, the vertical framed bent of 32- side form support, 33- level holds out against jack, 34- level holds out against jack backboard, 35- water
The horizontal lifting jack for demoulding backboard of flat lifting jack for demoulding, 36-, the vertical jack of 37-, the vertical jack of 38- shelve pedestal, 39- mould
At the top of plate it is adjustable to soil cement plate at the top of stay bolt frame, 40- template hitch frame, the preset fixing piece of 41- cushion cap, 42- cut-pff wall,
The pre-buried fixed earth anchor of 43-, 44- armored concrete water fender, 45- water fender rib column, 46- water fender bottom plate, 47- barrier rubber
The external monoblock type waterproof cloth of the oblique strut of item, 48-, 49-, 50- packeted soil consolidate bottom, the horizontal tongue and groove of 51- water fender, 52- water fender
Vertical tongue and groove, 53- hydro-expansive rubber item, 54- steel truss, 55- truss assembly connecting rod, 56- truss fixed bottom plate, 57- truss
Symmetrical ballast, the vertical pull rod of 58- truss prestressing force, 59- truss side plate, 60- coil waterproof layer, the external rolling of 61- are integrally prevented
Water cloth.
Specific embodiment
The invention patent is described in detail in example shown in hereinafter reference will be made to the drawings:
Fig. 1 is the withered phase cofferdam pile formula barricade of the present invention and operation platform schematic diagram, structure specifically include that pile foundation support table 2,
Concrete guard wall 3, block stone mask 4, the formation of earth rock cofferdam 5 lead wall section pile formula barricade and build the island cofferdam Ku Qi, and former form line 8 is mentioned
Up to safe height, earth rock cofferdam 5 establish jet grouted barrier wall 6 after the completion of filling.
In Fig. 2, the pre-buried stationary positioned bar 13 in 10 center of separated steel casing, for separated steel casing 10 to be fixed on soil
In stone ground；Casing movable floor 12 is arranged in 10 bottom of separated steel casing, welds two foundation plate lifting rods 14 thereon, uses
It is hung with lifting；Bottom end setting casing bottom shelf 11 holds casing movable floor 12 as backing, and stationary positioned bar 13 passes through shield
Cylinder movable floor 12 is into native ground mass ground.
Further, boom prefabricated section ballast 15 is placed before pile foundation pile, in separated steel casing 10 to stablize the shield
Boom prefabricated section ballast 15 when pile foundation construction, can be hung by the bottom plate lifting rod 14 and be constructed by cylinder.
Fig. 3 is the prefabricated cushion cap 21 of the present invention, including cushion cap connects reserving rib 25, cushion cap connecting lateral plate 26, cushion cap
Connecting partition 23 and cushion cap connecting hole 22.21 linked system of prefabricated cushion cap, is characterized in that prefabricated cushion cap
21 overlap at the top of pile body expanding 17 and stake top reserving rib 25, and cushion cap connects reserving rib 25 and the pre-buried high-strength dowel 19 of stake top
It is anchored by cushion cap connecting partition 23, cushion cap connects the gap section of reserving rib 25 and the pre-buried high-strength dowel 19 of stake top using company
Connect grouting body 24 pour it is integral.Prefabricated cushion cap 21 is equipped with cushion cap and reserves embeded slot 27, holds for prefabricated
The Qian He of platform 21 and concrete guard wall 3 plays AsA -GSH cycle.Fig. 4 is prefabricated 21 connection schematic diagram of cushion cap of the present invention, cushion cap
It is anchored between connection reserving rib 25 by cushion cap connecting partition 23；Pass through cushion cap between adjacent prefabricated cushion cap 21
Connecting lateral plate 26 connects and is formed with cushion cap connecting hole 22.
Fig. 5 is pile formula cast-in-place concrete barricade regularization template of the present invention, it is characterised in that side is reinforced in barricade regularization
Barricade open-close type end mould 30, removable even segmented template is arranged in 29 both ends of mould, and barricade regularization reinforces the assembly and disassembly of side form 29 and is equipped with water
The tight jack 33 of flat-top and horizontal lifting jack for demoulding 35.
Fig. 6, Fig. 9 and Figure 10 are prefabricated assembling type reinforced concrete water fender schematic diagram of the present invention, the armored concrete
Water fender 44 and water fender bottom plate 46 are bolted by the vertical tongue and groove 52 of water fender, soil cement at the top of water fender bottom plate 46 and cut-pff wall
Plate 42 is connected by pre-buried fixed earth anchor 43.44 land side of armored concrete water fender passes through water fender rib column 45 and oblique
Strut 48 is reinforced, and water fender rib column 45 is connected and fixed with armored concrete water fender 44 and water fender bottom plate 46, oblique strut
48 both ends are connected and fixed with soil cement plate 42 at the top of armored concrete water fender 44 and cut-pff wall respectively.The armored concrete gear
44 upstream face of water plate is equipped with external monoblock type waterproof cloth 49, and hydro-expansive rubber item 53, gear are bonded at the vertical tongue and groove 52 of water fender
Water board bottom plate 46 glues barrier rubber item 47.It is swollen that water is met in the horizontal setting of tongue and groove 51 of the water fender of 44 junction of armored concrete water fender
Swollen rubber strip 53.
Fig. 7 is pile formula cast-in-place concrete barricade regularization template demoulding schematic diagram of the present invention, the template traction mechanism
Including 40 template of template hitch frame assembly and disassembly component, it is provided on the pile foundation support table 2 of vertical Power Component and main template body two sides
One side form sliding rail 31, template assembly and disassembly component include that the level that is equipped with of main template body both ends holds out against component and one horizontal de-
Membrane module, it includes horizontal holding out against jack 33 and horizontal holding out against setting that jack 33 is connected in pile foundation that level, which holds out against component,
Level on cushion cap 2 holds out against jack backboard 34, and level demoulding component includes that horizontal lifting jack for demoulding 35 and level demoulding are very heavy
Push up backboard 36, the vertical Power Component includes that the vertical jack that is equipped with of pile foundation support table 2 shelves pedestal 38 and vertical very heavy
The vertical jack 37 for jacking up main template body being equipped in pedestal 38 is shelved on top, and the template hitch frame 40 is located at template master
In vitro, and by wirerope it is connect with main template body.Jack backboard 36 provides counter-force and pulls outward punching block, helps to demould, can be with
It prevents from damaging concrete during demoulding.
Fig. 8 is cast-in-place concrete Retaining wall template sliding schematic diagram of the present invention, use when next section of Retaining wall
Barricade regularization reinforcement side form 29 is pushed up upwards and is moved on side form sliding rail 31 by vertical jack 37, is drawn by template hitch frame 40
It constructs to next section；Being provided with die head at the top of the barricade regularization reinforcement side form 29 can adjust to stay bolt frame 39,
The template spacing that barricade regularization is reinforced between side form 29 is adjustable.It is adjustable to 39 spacing of stay bolt frame to adjust die head, and will
The barricade regularization reinforces side form 29 and slides onto side form sliding rail 31, and the template hitch frame 40 is kept off by traction steel wire wire saws
Wall regularization reinforces side form 29 and slides onto next section of construction surface progress Retaining wall along the side form sliding rail 31.
Figure 11 is steel truss assembly water fender schematic diagram of the present invention, the fixed bottom plate of the 54 bottom truss frame for connecting of steel truss
56, the fixed bottom plate 56 of the truss is anchored in 42 top of soil cement plate at the top of cut-pff wall.Steel truss 54 is stablized by equal in two sides
The symmetrical ballast 57 of truss is placed, and the vertical pull rod 58 of truss prestressing force is set at 54 center of steel truss.The truss side plate 59 with
External rolling integral waterproofing cloth 61 is all set in steel truss 54 and meets water side, and 59 surface of truss side plate is coated with coil waterproof layer 60,
Twice waterproof defence line is together formed with external rolling integral waterproofing cloth 61.
Figure 12 is steel truss assembly front elevation of the present invention, and vertical 58 both ends of pull rod of truss prestressing force are respectively arranged at soil cement
54 top of bottom end and steel truss is formed vertical pulling force, is spliced between steel truss 54 using truss assembly connecting rod 55.
As shown in figure 13, withered phase cofferdam pile formula Retaining wall method the following steps are included:
(1) Construction Arrangement: in scope of design, prepare water power and tool, material and cofferdam constructing soil that construction needs
Building stones carry out construction safety, environmental protection measure；
(2) cofferdam is filled: directly being transported from excavation area to cofferdam by dumper and is backfilled position, construction in layer.It fills in cofferdam
Project amount leads wall position outside being concentrated mainly on, and quasi- create conditions is attacked and occupied from upstream and downstream end in opposite directions respectively；(3) island compacting is built: flat
Material carries out vibrating roller grinding compacting of constructing and use using bull-dozer, and slope surface is aided with and is manually modified using backhoe, guarantee slope surface
Smoothly；
(4) jet grouted barrier wall is constructed: each whirl spraying hole point sequence of jet grouted barrier wall is constructed, and is partitioned into wall section, is then joined into whole
Wall；Each whirl spraying hole point sequence of jet grouted barrier wall is constructed, and is partitioned into wall section, is then joined into whole wall.I is divided by whirl spraying hole number
Sequence hole, II sequence hole, it is rear to creep into II sequence hole after pore-creating and the jet grouting of first completing I sequence hole, and complete jet grouting.Construction master
Wanting specific steps includes: drilling, intubation, injection, filling grouting；
(5) prefabricated assembled prefabricated cushion cap: according to the prefabricated assembled prefabricated cushion cap of design requirement；
(6) prefabrication cast-in-place concrete barricade regularization template: according to design requirement prefabrication cast-in-place concrete barricade regularization
Template；
(7) it places separated steel casing: separated steel casing 10 is placed on to the position of design requirement pile foundation；
(8) stablize steel pile casting: placing boom prefabricated section ballast 15 in separated steel casing 10；
(9) the casing movable floor 12 and boom prefabricated section pressure of bottom plate lifting rod 14 and its connection filling pile construction: are extracted
15 are weighed, concrete perfusion；
(10) it places prefabricated assembled prefabricated cushion cap: prefabricated assembled prefabricated cushion cap is equipped to stake top；
(11) cast-in-place concrete barricade regularization template is placed: before Retaining wall, mould needed for constructing by design requirement assembly
Plate and material；
(12) it cast-in-place concrete Retaining wall: is poured using concrete；
(13) it prefabricated water fender: according to construction site hydrological geological conditions and water level conditions, selects assembled steel reinforced mixed
Solidifying soil water fender or steel truss assembly water fender, and it is prefabricated；
(14) it places water fender: placing water fender and according to design requirement assembly to requiring absolute altitude and length.
Barricade template uses prefabricated pile formula cast-in-place concrete barricade regularization template；Foundation construction uses pile foundation assembled
Prefabricated cushion cap, it is characterised in that: pile foundation construction uses the pre-buried system of ballast casing built in separate type, and cushion cap then uses assembled pre-
Cushion cap processed and linked system；Finally, prefabricated water fender select according to the actual situation prefabricated assembling type reinforced concrete water fender or
Steel truss assembly water fender improves the water-retaining capacity in cofferdam.
The withered phase cofferdam pile formula barricade, it is characterised in that: including concrete guard wall 3, pile foundation support table 9, embedded rock pile 1 with
And pre-buried separated steel casing 10 before pile.Pre-buried separated steel casing 10 before the pile, it is characterised in that center is pre-
Bury stationary positioned bar 13, and it is interior set casing movable floor 12 and bottom plate lifting rod 14, boom prefabricated section ballast 15 is placed in casing
It maintains the separated steel casing 10 to stablize, boom prefabricated section ballast 15 is taken out by the bottom plate lifting rod 14 before pile
Carry out pile foundation construction.
More specifically, the pile formula cast-in-place concrete barricade regularization template, it is characterised in that template is fixed using barricade
Typeization reinforces side form 29, jack system and side form and slides system.The pile formula cast-in-place concrete barricade regularization template
Barricade open-close type end mould 30 is set in end, two sides support vertical framed bent 32 to support by side form, framed bent and the preset fixing piece of cushion cap
41 are connected and fixed, and barricade regularization reinforces 29 two sides of side form and places side form sliding rail 31, reinforce side form convenient for traction barricade regularization
29 to next section construction.
The prefabricated cushion cap of pile foundation, mainly including prefabricated cushion cap 21 and its linked system, and and its
The stake top portion of connection is arranged.Specific manifestation are as follows: the prefabricated cushion cap 21 is placed in expanding 17 at the top of stake top portion pile body
Place, cushion cap connect and are anchored by cushion cap connecting partition 23 between reserving rib 25 and connect the pre-buried high-strength dowel 19 of stake top；
Cushion cap connecting lateral plate 26 is connected between prefabricated cushion cap 21 and forms cushion cap connecting hole 22, is clogged with connection grouting body 24, shape
At the connection of prefabricated cushion cap 21 and pile body.
Further, it is characterized by comprising two kinds of selections for the prefabricated water fender 7: prefabricated assembling type reinforced concrete gear
Water plate and steel truss assembly water fender can carry out the selection of water fender 7 according to construction site actual conditions.
Between the armored concrete water fender 44 by water fender horizontal connection tongue and groove 51 bolt, water fender bottom plate 46 with
Soil cement plate 42 is connected by pre-buried fixed earth anchor 43 at the top of cut-pff wall.44 land side of armored concrete water fender is by water blocking rib of slab
Column 45 and oblique strut 48 are reinforced, the external monoblock type waterproof cloth 49 of upstream face, and bonding meets water at the vertical tongue and groove 52 of water fender
Expanded rubber item 53, water fender bottom plate 46 glue barrier rubber item 47.
The steel truss assembly water fender, which is characterized in that the fixed bottom plate 56 of its 54 bottom truss frame for connecting of steel truss, institute
It states the fixed bottom plate 56 of truss and is anchored in 42 top of soil cement plate at the top of cut-pff wall.Steel truss 54 is stablized by placing purlin in two sides
The symmetrical ballast 57 of frame, and the vertical pull rod 58 of truss prestressing force is set at 54 center of steel truss.The truss side plate 59 with it is external
Rolling integral waterproofing cloth 61 is all set in steel truss 54 and meets water side, and 59 surface of truss side plate applies coil waterproof layer 60, and external
Rolling integral waterproofing cloth 61 forms twice waterproof defence line.
Claims (8)
1. withered phase cofferdam pile formula barricade, which is characterized in that including barricade component, the block stone being arranged on former form line (8)
Mask (4), pile foundation construction with artificial island platform (9) and water blocking component, the barricade component include sequentially connected embedding rock from top to bottom
Stake (1), pile foundation support table (2) and concrete guard wall (3), the embedded rock pile (1) are arranged in situ shape line (8), the water blocking group
Part includes setting jet grouted barrier wall (6), prefabricated water fender (7) and earth rock cofferdam (5), and in situ shape is arranged in jet grouted barrier wall (6)
On line (8), prefabricated water fender (7) is arranged on jet grouted barrier wall (6), fills to form native stone by cofferdam on former form line (8)
Former form line (8) is promoted to construction requirement absolute altitude, is formed pile foundation construction with artificial island platform (9) by cofferdam (5), and earth rock cofferdam (5) is tight
By jet grouted barrier wall (6), pile foundation construction with artificial island platform (9) is arranged in the side that meets water of concrete guard wall (3), and block stone mask (4) is set
Set the land side in concrete guard wall (3).
2. withered phase cofferdam pile formula barricade according to claim 1, which is characterized in that the pile foundation support table (2) is pile foundation
Prefabricated cushion cap, including multiple end to end prefabricated cushion caps (21), adjacent prefabricated cushion cap (21)
Between connect and be formed with cushion cap connecting hole (22) by cushion cap connecting lateral plate (26), is preset in prefabricated cushion cap (21)
Cushion cap connects reserving rib (25), and stake top stripping is connected at the top of embedded rock pile (1) and is stayed a core (18), is preset with and runs through in embedded rock pile (1)
The pre-buried high-strength dowel (19) of the stake top of a core (18) is stayed in stake top stripping, cushion cap connect between reserving rib (25) by cushion cap connect every
Plate (23) is anchored and is connected the pre-buried high-strength dowel (19) of stake top, and pile foundation support table (2) is placed at the top of pile body expanding (17)
On, stake top stripping is stayed in a core (18) insertion cushion cap connecting hole (22), and cushion cap connecting hole (22) is packed with grouting body (24).
3. withered phase cofferdam pile formula barricade according to claim 1, which is characterized in that the prefabricated water fender (7) includes
Prefabricated assembling type reinforced concrete water fender (44) and steel truss assembly water fender (54), between armored concrete water fender (44)
It is bolted by the horizontal tongue and groove of water fender (51), armored concrete water fender (44) is vertical by water fender with water fender bottom plate (46)
Tongue and groove (52) bolt, water fender bottom plate (46) are connect with soil cement plate (42) at the top of cut-pff wall by pre-buried fixed earth anchor (43),
Armored concrete water fender (44) land side is reinforced by water fender rib column (45) and oblique strut (48), water fender rib column
(45) be connected and fixed with armored concrete water fender (44) and water fender bottom plate (46), oblique strut (48) both ends respectively with steel
Soil cement plate (42) is connected and fixed at the top of reinforced concrete water fender (44) and cut-pff wall, and the armored concrete water fender (44) is met
The water surface is equipped with external monoblock type waterproof cloth (49), bonds hydro-expansive rubber item (53) at the vertical tongue and groove of water fender (52), water blocking
Board bottom plate (46) glues barrier rubber item (47), the horizontal tongue and groove of water fender (51) setting of armored concrete water fender (44) junction
Hydro-expansive rubber item (53).
4. withered phase cofferdam pile formula barricade according to claim 3, which is characterized in that the steel truss assembly water fender packet
Include steel truss (54), truss fixed bottom plate (56), the symmetrical ballast of truss (57), truss side plate (59) are integrally prevented with external rolling
Water cloth (61), steel truss (54) the bottom truss frame for connecting is fixed bottom plate (56), and the truss fixed bottom plate (56) is anchored in anti-
Wall top portion soil cement plate (42) top is seeped, steel truss (54) two sides are placed with the symmetrical ballast of a truss (57), and steel truss
(54) the vertical pull rod of truss prestressing force (58), the truss side plate (59) and external rolling integral waterproofing cloth are provided centrally with
(61) it is all set in steel truss (54) to meet water side, truss side plate (59) surface is coated with coil waterproof layer (60).
5. the construction method of withered phase cofferdam pile formula barricade, which comprises the following steps:
1) Construction Arrangement: in scope of design, the water power and tool, material and cofferdam for preparing construction needs fill earth and stone material,
Carry out construction safety, environmental protection measure；
2) cofferdam is filled: in situ shape line (8), directly being transported from excavation area to cofferdam by dumper and is backfilled position, layering is applied
Work, cofferdam reclamation work amount are concentrated mainly on concrete guard wall (3) and meet water side, according to field condition from upstream and downstream end one
Start to attack and occupy or be attacked and occupied in opposite directions from upstream and downstream end respectively；
3) build island compacting: flat material carries out vibrating roller grinding compacting of constructing and use using bull-dozer, and slope surface uses backhoe to be aided with manually
It is modified, guarantees that slope surface is smooth；
4) jet grouted barrier wall is constructed: each whirl spraying hole point sequence of jet grouted barrier wall is constructed, and is partitioned into wall section, is then joined into whole wall；
5) pile foundation support table (2) is constructed: pre- according to the prefabricated multiple assembleds for being preset with cushion cap connection reserving rib (25) of design requirement
Then cushion cap processed connects and composes pile foundation support table (2)；
6) prefabrication cast-in-place concrete barricade regularization template: according to design requirement prefabrication cast-in-place concrete barricade regularization template；
7) embedded rock pile (1) is constructed: on the position of in situ shape line (8) design requirement pile foundation, place separated steel casing (10),
The pre-buried stationary positioned bar (13) in its center, separated steel casing (10) is interior to set casing movable floor (12) and bottom plate lifting rod
(14), boom prefabricated section ballast (15) are then placed in separated steel casing (10) to keep stablizing；Extract bottom plate lifting rod
(14) and its connection casing movable floor (12) and boom prefabricated section ballast (15), concrete perfusion；
8) pile foundation support table (2) installation: by pile foundation support table (2) equipment to embedded rock pile (1), a core is stayed by shelling stake top
(18) in insertion cushion cap connecting hole (22), then cushion cap connecting hole (22) filling grouting body (24) is realized and is connected and fixed；
9) cast-in-place concrete Retaining wall: on pile foundation support table (2) place cast-in-place concrete barricade regularization template, concrete into
Row pours, and cast-in-place concrete barricade regularization template is then moved to lower section barricade position by template traction mechanism, again
Concreting is carried out, until completing the construction of entire barricade；
10) prefabricated water fender: according to construction site hydrological geological conditions and water level conditions, assembled steel reinforced concrete gear is selected
Water plate or steel truss assembly water fender, and it is prefabricated；
11) it places water fender: placing water fender and according to design requirement assembly to requiring absolute altitude and length.
6. the construction method of withered phase cofferdam pile formula barricade according to claim 5, which is characterized in that the cast-in-place coagulation
Native barricade regularization template includes that reinforce side form (29), barricade open-close type end mould (30), die head adjustable for barricade regularization
Vertical framed bent (32) and template traction mechanism are supported to stay bolt frame (39), side form, side form (29) are reinforced in two barricade regularization can
Adjustment constitutes main template body to stay bolt frame (39) both ends, and barricade open-close type end mould (30) is arranged in main template body both ends, template
Main body two sides are equipped with a side form and support vertical framed bent (32) to support barricade regularization to reinforce side form (29), pile foundation support table
(2) it is equipped with the preset fixing piece of cushion cap (41), side form supports vertical framed bent (32) to be connected and fixed with the preset fixing piece of cushion cap (41).
7. the construction method of withered phase cofferdam pile formula barricade according to claim 6, which is characterized in that the template traction
Mechanism includes template hitch frame (40), template assembly and disassembly component, on the pile foundation support table (2) of vertical Power Component and main template body two sides
It is provided with a side form sliding rail (31), the template assembly and disassembly component includes that the level that is equipped with of main template body both ends holds out against component
With a horizontal demoulding component, it includes that level holds out against jack (33) and level holds out against jack (33) connection that level, which holds out against component,
Level of some settings on pile foundation support table (2) is held out against jack backboard (34), and level demoulding component includes that horizontal demoulding is very heavy
(35) and horizontal lifting jack for demoulding backboard (36) are pushed up, the vertical Power Component includes vertical thousand that pile foundation support table (2) is equipped with
Pedestal (38) is shelved on jin top and vertical jack shelves the vertical jack for jacking up main template body being equipped in pedestal (38)
(37), the template hitch frame (40) is located at outside main template body, and is connect by wirerope with main template body.
8. the construction method of withered phase cofferdam pile formula barricade according to claim 6, which is characterized in that it is described 5) in, first
Multiple prefabricated cushion caps (21) are end to end, pass through cushion cap connecting lateral plate between adjacent prefabricated cushion cap (21)
(26) it connects and is formed with cushion cap connecting hole (22), cushion cap is connected and carried out between reserving rib (25) by cushion cap connecting partition (23)
The pre-buried high-strength dowel (19) of stake top is anchored and connects, stake top stripping is stayed in a core (18) insertion cushion cap connecting hole (22), and cushion cap connects
Connect hole (22) filling grouting body (24).
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| CN201811495576.4A CN109371901B (en) | 2018-12-07 | 2018-12-07 | Pile bearing type retaining wall of cofferdam in dry period and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811495576.4A CN109371901B (en) | 2018-12-07 | 2018-12-07 | Pile bearing type retaining wall of cofferdam in dry period and construction method |
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| CN109371901B CN109371901B (en) | 2021-01-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113322904A (en) * | 2021-06-04 | 2021-08-31 | 中国电建集团成都勘测设计研究院有限公司 | High-spraying impervious wall for covering layer foundation concrete dam and construction method thereof |
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| CN201459744U (en) * | 2009-07-13 | 2010-05-12 | 中国水电顾问集团华东勘测设计研究院 | Deepwater earth-rock cofferdam structure |
| CN105672197A (en) * | 2016-03-23 | 2016-06-15 | 上海勘测设计研究院有限公司 | Method for heightening and reinforcing embankment and structure |
| CN106702840A (en) * | 2017-02-10 | 2017-05-24 | 湖南大学 | Anchored pile reinforced earth retaining wall embankment for treating shoreside soft soil roadbed |
| CN209277090U (en) * | 2018-12-07 | 2019-08-20 | 四川港航建设工程有限公司 | Withered phase cofferdam pile formula barricade |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201459744U (en) * | 2009-07-13 | 2010-05-12 | 中国水电顾问集团华东勘测设计研究院 | Deepwater earth-rock cofferdam structure |
| CN105672197A (en) * | 2016-03-23 | 2016-06-15 | 上海勘测设计研究院有限公司 | Method for heightening and reinforcing embankment and structure |
| CN106702840A (en) * | 2017-02-10 | 2017-05-24 | 湖南大学 | Anchored pile reinforced earth retaining wall embankment for treating shoreside soft soil roadbed |
| CN209277090U (en) * | 2018-12-07 | 2019-08-20 | 四川港航建设工程有限公司 | Withered phase cofferdam pile formula barricade |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113322904A (en) * | 2021-06-04 | 2021-08-31 | 中国电建集团成都勘测设计研究院有限公司 | High-spraying impervious wall for covering layer foundation concrete dam and construction method thereof |
| CN113322904B (en) * | 2021-06-04 | 2022-08-19 | 中国电建集团成都勘测设计研究院有限公司 | High-spraying impervious wall for covering layer foundation concrete dam and construction method thereof |
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| CN109371901B (en) | 2021-01-08 |
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