CN208949903U - Combined type cofferdam structure and underwater work platform - Google Patents
Combined type cofferdam structure and underwater work platform Download PDFInfo
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- CN208949903U CN208949903U CN201821521186.5U CN201821521186U CN208949903U CN 208949903 U CN208949903 U CN 208949903U CN 201821521186 U CN201821521186 U CN 201821521186U CN 208949903 U CN208949903 U CN 208949903U
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Abstract
A kind of combined type cofferdam structure and underwater work platform, it is related to foundation in water technical field of construction, for leaning on into the waters of embankment, the combined type cofferdam structure includes the steel sheet-pile cofferdam in semi-surrounding structure, it surrounds to form an enclosure space between the steel sheet-pile cofferdam and the embankment, the island You Zhu material is filled in the enclosure space.The combined type cofferdam structure forms the job platform for being similar to land, facilitates carry out foundation construction, accelerate construction speed by combining steel sheet-pile cofferdam with building island；Island periphery inserting piling steel sheet pile is being built, can effectively avoid polluted river channel；Not only solved the problems, such as that conventional steel sheet pile cofferdam caused operating space narrow because internal support is arranged, but also save material to no longer carry out extra support using outside soil water pressure substantial equilibrium in steel sheet pile.
Description
Technical field
The utility model relates to foundation in water technical field of construction, in particular to a kind of combined type cofferdam structure and
Underwater work platform.
Background technique
Cofferdam refers in hydraulic engineering construction, for the permanent water conservancy projects of construction, the provisional building enclosure built,
Effect is to prevent water and soil from building position into building, so that in cofferdam internal drainage, excavation pit builds building.One
As be mainly used in waterwork, except as formal building a part in addition to, cofferdam is generally removed after being finished, cofferdam height
Higher than the peak level being likely to occur in the construction time.
In bridge foundation construction, when bridge pier column, cushion cap foundation are located at earth's surface water level or less, cofferdam conduct can be used
Temporary structure, the effect in cofferdam not only can with waterproof, enclose water, but also the crater wall of foundation pit can be supported.
Common cofferdam form mainly has steel sheet-pile cofferdam, concrete cofferdam, steel boxed cofferdam, steel suspended box cofferdam, reinforcing bar
Combined concrete cofferdam etc., wherein steel sheet-pile cofferdam has speed of application fast, good in economic efficiency, reusable etc. many excellent
Point, thus be widely used, but conventional steel sheet pile cofferdam technique globality poor, the horizontal loading of receiving are smaller, only rely on
Cofferdam structure itself resists peripheral water pressure, and the components such as purlin and multiple tracks cross-brace need to be arranged, make cofferdam inherent space constraints,
It is unfavorable for constructing operation, and steel sheet pile embedded depth is larger.
The island Shui Zhongzhu technique globality is strong, stability is good, can bear biggish load, but it is without peripheral supporting construction, easily
The pollution of river is caused, ecological requirements are unsatisfactory for.
Utility model content
The purpose of this utility model is to provide a kind of combined type cofferdam structure and underwater work platform, can facilitate into
Row foundation construction, to accelerate construction progress.
The embodiments of the present invention are achieved in that
The one side of the utility model embodiment provides a kind of combined type cofferdam structure, for leaning on into the waters of embankment, institute
Stating combined type cofferdam structure includes the steel sheet-pile cofferdam in semi-surrounding structure, is surrounded between the steel sheet-pile cofferdam and the embankment
An enclosure space is formed, the island You Zhu material is filled in the enclosure space.
Optionally, in the utility model preferred embodiment, the steel sheet-pile cofferdam is successively spliced by multiple steel sheet piles
It is formed.
Optionally, in the utility model preferred embodiment, the enclosure space is the enclosure space that one is in quadrangle.
Optionally, in the utility model preferred embodiment, the steel sheet pile is Larsen steel sheet pile.
Optionally, in the utility model preferred embodiment, the adjacent side of adjacent two steel sheet pile is mutually twisted.
Optionally, in the utility model preferred embodiment, one end of the steel sheet pile is provided with lifting hole(eyelet).
Optionally, in the utility model preferred embodiment, the lifting hole(eyelet) is set to the central axis of the steel sheet pile
On, the diameter of the lifting hole(eyelet) is 5cm.
Optionally, in the utility model preferred embodiment, a shackle is mounted on the lifting hole(eyelet).
Optionally, in the utility model preferred embodiment, described to build island with material be sandy soil.
The another aspect of the utility model embodiment provides a kind of underwater work platform comprising combinations of the above formula is enclosed
Weir structure.
The beneficial effect of the utility model embodiment includes:
This combined type cofferdam structure forms the operation horizontal for being similar to land by combining steel sheet-pile cofferdam with building island
Platform facilitates carry out foundation construction, accelerates construction speed；Island periphery inserting piling steel sheet pile is being built, can effectively avoid polluted river channel；Benefit
Conventional steel sheet pile cofferdam knot is not needed to no longer carry out extra support with outside soil water pressure substantial equilibrium in steel sheet pile
Structure encloses wingceltis and internal support, has both solved conventional steel sheet pile cofferdam and has caused operating space narrow because internal support is arranged
The problem of, and save material；In addition, island is built in the earthwork can reduce or offset external water pressure, keep the build-in of cofferdam steel sheet pile deep
Degree becomes smaller, and then reduces the total length of cofferdam steel sheet pile.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the combined type cofferdam structure schematic diagram that an embodiment of the present invention provides；
Fig. 2 is the splicing schematic diagram of adjacent two steel sheet pile in Fig. 1；
Fig. 3 is the lifting schematic diagram of Fig. 1 Steel Sheet Pile；
Fig. 4 is combined type cofferdam structure arrangement schematic diagram in Fig. 1.
Icon: 100- combined type cofferdam structure；110- steel sheet-pile cofferdam；111- steel sheet pile；112- lifting hole(eyelet)；113- shackle；
114- steel wire cable；120- enclosure space；130- embankment；140- steel trestle；150- crawler crane.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, or
The utility model product using when the orientation or positional relationship usually put, be merely for convenience of description the utility model and letter
Change description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construct and
Operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second ", " third " etc. are only used for area
Divide description, is not understood to indicate or imply relative importance.
In addition, the terms such as term "horizontal", "vertical" are not offered as requiring component abswolute level or pendency, but can be slightly
Low dip.It is not to indicate that the structure has been had to if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
It is complete horizontal, but can be slightly tilted.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve the concrete meaning of above-mentioned term in the present invention.
Embodiment
Fig. 1 is please referred to, the present embodiment provides a kind of combined type cofferdam structures 100, for leaning on into the waters of embankment 130, group
Box-like cofferdam structure 100 includes the steel sheet-pile cofferdam 110 in semi-surrounding structure, is surrounded between steel sheet-pile cofferdam 110 and embankment 130
An enclosure space 120 is formed, the island You Zhu material is filled in enclosure space 120.
Island is built also known as to build island and fill out the heart, refer to banket in the region that cofferdam surrounds, sand and sand gravel, for example, sand can be selected
Property soil as island material is built, the soil that sandy soil refers to that grain containing sand is more and has certain viscosity makees settling amount when ground
Small, easy densification, and water stability is good after compacting, intensity is higher.
Optionally, enclosure space 120 is in the enclosure space of quadrangle for one, or can also be in semi arch for one, be in polygon
The enclosure space of shape.
Specifically, as shown in Fig. 2, steel sheet-pile cofferdam 110 is successively spliced to form by multiple steel sheet piles 111, steel sheet pile 111 is
The adjacent side of Larsen steel sheet pile, adjacent two steel sheet pile 111 is mutually twisted.
Larsen steel sheet pile is called U-shaped steel sheet pile, it in bridge construction cofferdam, large-scale pipeline laying, faces as a kind of building material
When irrigation canals and ditches be used as earth-retaining, water blocking when excavating, play an important role, and to do cofferdam not only environmentally protective but also apply for Larsen steel sheet pile
Work speed is fast, operating expenses is low, has good water-proof function.
Larsen steel sheet pile has the advantage that high quality (high-intensitive, light-duty, water-resisting property is good)；Construction is simple, duration contracting
It is short, durability is good, the service life 50 years or more；Construction cost is cheap, interchangeability is good, and reusable 58 times；Construction has aobvious
The environment protecting of work substantially reduces the usage amount for taking soil amount and concrete, is effectively protected land resource；Disaster relief and rescue
Timeliness is stronger, such as controls flood, caves in, collapsing, drift sand；It handles and solves a series of problems in mining process；For construction
For task, the requirement to space can reduce；Be capable of providing necessary safety using Larsen steel sheet pile and timeliness compared with
By force；It can not be restricted by weather condition using Larsen steel sheet pile；Using Larsen steel sheet pile, inspectability material can be simplified and be
The complexity of commons material.
Preferably, as shown in figure 3, one end of steel sheet pile 111 is provided with lifting hole(eyelet) 112, lifting hole(eyelet) 112 is set to steel sheet pile 111
Central axis on, the diameter of lifting hole(eyelet) 112 is 5cm.
Further, a shackle 113 is mounted on lifting hole(eyelet) 112.
The specific embodiment of combined type cofferdam structure 100, comprising the following steps:
S1: building the setting-out of island sideline, as shown in figure 4, according to basic engineering coordinate, in conjunction with live 140 position of steel trestle etc. because
Island sideline is built in element, determination, and 3m should be no less than beyond cap design of pile sideline, and survey crew can be used total station accurate settingout and go out to build
Island boundaries line, and make mark.
S2: inserting piling guide pile combines practical hydrogeologic condition first, using midas software modeling, simulates steel sheet pile
111 stress conditions obtain its theoretical embedded depth, i.e. designed elevation.
Further, it makes marks at corresponding position, that is, designed elevation of 111 pile body of steel sheet pile, then uses crawler crane 150
Sling steel sheet pile 111, it is preferable that have steel wire cable 114 in the lower end system of steel sheet pile 111, sling steel sheet pile 111 to prevent
Process Steel Sheet Pile 111 swings.
Specifically, crawler crane 150 to be passed through to the shackle 113 of steel sheet pile 111, steel sheet pile 111 is sling to institute with crawler crane 150
Start to transfer after needing position, keeps bury thirty years of age of middle certain depth of its underthrust steady by 111 dead weight of steel sheet pile, when self weight cannot
When underthrust, loosen steel wire cable 114, after extracing crawler crane 150, crawler crane 150 slings vibration hammer again, and mobile fall vises steel
111 stake top of sheet pile opens vibration force, pressurizes to steel sheet pile 111, by 111 inserting piling of steel sheet pile to mark position, get to label
Stop inserting piling behind place, guarantees that its embedded depth meets design requirement.
It is controlled during inserting piling with vertical degree of the plummet to steel sheet pile 111, guarantees that its gradient is no more than 2%；It should
Steel sheet pile 111 is the guide pile as subsequent construction.
S3: inserting piling cofferdam steel sheet pile 111, using with mode inserting piling cofferdam identical in S2 steel sheet pile 111.
For the steel sheet pile 111 of inserting piling first, when inserting piling, makes stake back against leading truck, and side insert edge is slow by steel sheet pile 111
Decentralization, is observed in its orthogonal both direction with plummet, to ensure that steel sheet pile 111 is slotting just, it is straight to insert；After the completion of insertion
The verticality that steel sheet pile 111 need to be detected ensures that it meets the requirements；After detection determines that 111 inserting piling of steel sheet pile is qualified, using it as base
Standard, then to the symmetrical inserting piling steel sheet pile 111 in both sides.
For being already inserted into the inserting piling of the adjacent steel sheet pile 111 of the steel sheet pile 111 of completion, after steel sheet pile 111 is sling by
It is artificial to help the fore shaft for being inserted into its adjacent steel sheet pile 111, while the vertical degree for controlling the steel sheet pile 111 makes to be inserted under its is vertical surely
After depthkeeping degree, recycle vibration hammer pressurize to the steel sheet pile 111, by 111 inserting piling of steel sheet pile to designed elevation and with
The steel sheet pile 111 that insertion is completed fully comes together.
The factors such as the accuracy closed up according to lifting appliance and vibratory equipment and steel sheet-pile cofferdam 110, for previous portion
The mode by the direct inserting piling of root can be used in the cofferdam steel sheet pile 111 divided, and latter part of cofferdam steel sheet pile 111 can first be closed up
Inserting piling preferably first closes up about 15 or so steel sheet piles 111 to spreading every time again, and the steel sheet pile 111 after spreading is closed up is neat
It is arranged in the position for being easy to lift by crane, then all steel sheet piles 111 are sling together and carry out inserting piling to designed elevation.
In entire work progress, the verticality per a piece of steel sheet pile 111 is controlled with plummet, and adjust in time.
For the steel sheet pile 111 that inserting piling is completed, should be welded immediately with leading truck, to resist water impact.
All 111 inserting pilings of steel sheet pile complete and be engaged it is integral after, that is, form steel sheet-pile cofferdam 110, steel sheet-pile cofferdam 110
Outside be upstream face.
S4: banketing and build island, bankets in the close range that steel sheet-pile cofferdam 110 and embankment 130 are formed and carries out construction with artificial island,
When banket close on steel sheet-pile cofferdam 110 when, can set special messenger be responsible for observe steel sheet pile 111 deformation, displacement situations such as；It can also slow down
Banket speed, while being aided with pumping for water pump, if steel sheet pile 111 still has deformation, can be used high-front shovel will be elapsed by the earthwork and
The underwater mud of accumulation clears out, to prevent 111 excessive deformation of steel sheet pile.
S5: foundation construction starts to carry out foundation construction after building island and completing to form job platform.
S6: the dismounting of steel sheet pile 111 can carry out the dismounting work of steel sheet pile 111 after foundation construction, first use and beat
Pile-drawing machine clamps 111 head vibration of steel sheet pile 1 to 2 minute, loosens the soil around steel sheet pile 111, generates " liquefaction ", reduces soil
To the frictional resistance of steel sheet pile 111, then up extricating oneself from a predicament and brace oneself up to action slowly.Pay attention to observing the load condition of crawler crane 150, discovery when pile pulling
When pulling is difficult or pulls out to come up, pile pulling should be stopped, can injection is a little down in advance, then up pull out, repeatedly can be by steel plate
Stake 111 is extracted.
In conclusion this combined type cofferdam structure 100 is formed similar by combining steel sheet-pile cofferdam 110 with building island
Job platform in land facilitates carry out foundation construction, accelerates construction speed；Island periphery inserting piling steel sheet pile 111 is being built, can had
Effect avoids pollution river；Using outside soil water pressure substantial equilibrium in steel sheet pile 111, to no longer carry out extra support, i.e., not
Need conventional steel sheet pile cofferdam structure encloses wingceltis and internal support, has both solved conventional steel sheet pile cofferdam because of the internal support of setting
Part and the problem for causing operating space narrow, and save material；In addition, island is built in the earthwork can reduce or offset external water pressure,
So that the building-in depth of cofferdam steel sheet pile 111 is become smaller, and then reduces the total length of cofferdam steel sheet pile 111.
The present embodiment also provides a kind of underwater work platform comprising combinations of the above formula cofferdam structure 100.Make in this water
Industry platform has structure identical with said combination formula cofferdam structure 100 and beneficial effect, due to combined type cofferdam structure 100
Structure and beneficial effect are described in detail in the above-described embodiments, and details are not described herein.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of combined type cofferdam structure, which is characterized in that for by into the waters of embankment, the combined type cofferdam structure includes
In the steel sheet-pile cofferdam of semi-surrounding structure, surround to form an enclosure space between the steel sheet-pile cofferdam and the embankment, it is described
The island You Zhu material is filled in enclosure space.
2. combined type cofferdam structure according to claim 1, which is characterized in that the steel sheet-pile cofferdam is by multiple steel sheet piles
Successively it is spliced to form.
3. combined type cofferdam structure according to claim 1, which is characterized in that the enclosure space is one in quadrangle
Enclosure space.
4. combined type cofferdam structure according to claim 2, which is characterized in that the steel sheet pile is Larsen steel sheet pile.
5. combined type cofferdam structure according to claim 4, which is characterized in that the adjacent side of adjacent two steel sheet pile is mutual
Occlusion.
6. combined type cofferdam structure according to claim 4, which is characterized in that one end of the steel sheet pile, which is provided with, hangs
Hole.
7. combined type cofferdam structure according to claim 6, which is characterized in that the lifting hole(eyelet) is set to the steel sheet pile
On central axis, the diameter of the lifting hole(eyelet) is 5cm.
8. combined type cofferdam structure according to claim 6, which is characterized in that be mounted with a shackle on the lifting hole(eyelet).
9. combined type cofferdam structure according to claim 1, which is characterized in that described to build island with material be sandy soil.
10. a kind of underwater work platform, which is characterized in that including combined type cofferdam described in any one of claim 1-9
Structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821521186.5U CN208949903U (en) | 2018-09-17 | 2018-09-17 | Combined type cofferdam structure and underwater work platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821521186.5U CN208949903U (en) | 2018-09-17 | 2018-09-17 | Combined type cofferdam structure and underwater work platform |
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| CN208949903U true CN208949903U (en) | 2019-06-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109056763A (en) * | 2018-09-17 | 2018-12-21 | 中交公局海威工程建设有限公司 | Combined type cofferdam structure and underwater work platform |
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2018
- 2018-09-17 CN CN201821521186.5U patent/CN208949903U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109056763A (en) * | 2018-09-17 | 2018-12-21 | 中交公局海威工程建设有限公司 | Combined type cofferdam structure and underwater work platform |
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