CN209053107U - A kind of steel cofferdam - Google Patents
A kind of steel cofferdam Download PDFInfo
- Publication number
- CN209053107U CN209053107U CN201821609979.2U CN201821609979U CN209053107U CN 209053107 U CN209053107 U CN 209053107U CN 201821609979 U CN201821609979 U CN 201821609979U CN 209053107 U CN209053107 U CN 209053107U
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- steel
- fore shaft
- pipe
- pipe pile
- cofferdam
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 126
- 239000010959 steel Substances 0.000 title claims abstract description 126
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000003466 welding Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 6
- 229910000679 solder Inorganic materials 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 28
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000003643 water by type Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 235000014121 butter Nutrition 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model provides steel cofferdam, including several fore shaft steel-pipe piles, the adjacent fore shaft steel-pipe pile is inserted by fore shaft and is connected, fore shaft includes the cloudy mouth being made of the seamless steel pipe, and the Yang Kou being made of I-steel, the I-steel is inserted from top to bottom into the assembly seam of the seamless steel pipe, and an at least high-pressure water pipe is fixedly connected on the fore shaft steel-pipe pile；The seamless steel pipe and I-steel are set to the outer surface of the steel pipe pile body, positioned at fore shaft steel-pipe pile lower part high-pressure water pipe water outlet close to the bottom end of the fore shaft steel-pipe pile.Improved multiple steel-pipe piles are assembled to form steel cofferdam between each other, for the construction technology of the steel cofferdam compared with former construction method, construction efficiency improves 1 times.
Description
Technical field
The utility model belongs to building field, specifically, being related to a kind of steel cofferdam.
Background technique
Steel cofferdam is the part of most critical in infrastructure and foundation construction under the conditions of the domain of land and water, it is as main pier circle base
Pit enclosure structure, retrieval finds that main pier construction is using fore shaft steel cofferdam progress foundation pit enclosure in existing construction technology, using steel pipe
Stake is embedded into soil, and boulder bed is passed through in telescopiny and is incorporated to incompetent bed, but steel-pipe pile is embedded into soil course, due to
Buried depth of bedrock face rises and falls greatly, and steel pipe pile deviation, gradient are difficult to be effectively ensured in work progress；In addition combined with scene and ground
Matter analysis, in the construction of high frictional resistance gravel layer, it may appear that pile sinking speed is slow or without obvious sinkage, and then causes at stake mouth
It is easy to appear and shatters or broken pile, influence the building time of entire engineering.
In view of this, it is necessary to being improved in the prior art, to solve the above problems.
Summary of the invention
In order to solve the problem of that the shortcomings of the prior art overcomes prior art steel-pipe pile pile driving process to be easy deviation,
The utility model proposes a kind of steel cofferdams, improved multiple steel-pipe piles are assembled to form steel cofferdam between each other, the steel cofferdam
Construction technology compared with former construction method, construction efficiency improves 1 times.
To achieve the above object, the utility model provides steel cofferdam, including several fore shaft steel-pipe piles, the adjacent lock
Mouth steel-pipe pile is inserted by fore shaft and is connected, and fore shaft includes the cloudy mouth being made of the seamless steel pipe, and be made of I-steel
Yang Kou is constituted, and the I-steel is inserted from top to bottom into the assembly seam of the seamless steel pipe, solid on the fore shaft steel-pipe pile
Surely at least one high-pressure water pipe is connected；
The seamless steel pipe and I-steel are set to the outer surface of the fore shaft steel-pipe pile, are located at the fore shaft steel-pipe pile
The water outlet of the high-pressure water pipe of lower part is close to the bottom end of the fore shaft steel-pipe pile.
In a preferred embodiment of the utility model, axis of the water outlet perpendicular to the fore shaft steel-pipe pile
Line.
In a preferred embodiment of the utility model, the high-pressure water pipe integral solder is in the fore shaft steel-pipe pile
Outer surface is fully welded when welding within the scope of the 0.5m of bottom, and rest part welds 10cm every 50cm
In a preferred embodiment of the utility model, the high-pressure water pipe bottom setting protection steel plate.
In a preferred embodiment of the utility model, the fore shaft steel-pipe pile includes steel pipe pile body, described seamless
Assembly seam is arranged in the direction that steel pipe is directed away from the steel pipe pile body from top to bottom, and the I-steel is whole perpendicular to the steel
Tubular pole ontology, the support portion of the I-steel any end are fixedly connected in the steel pipe pile body, the company of the I-steel
The diameter of socket part is less than or equal to the gap size of the assembly seam.
In a preferred embodiment of the utility model, after the fore shaft inserting connection, the interconnecting piece of the I-steel
Joint filling processing is carried out using welding procedure at the gap of the assembly seam.
In a preferred embodiment of the utility model, the steel cofferdam is round steel cofferdam, the round steel cofferdam
A part is in water, a part be located at land, 40 meters of the diameter of the round steel cofferdam, top mark height+36m, bottom absolute altitude+
10m。
Compared with prior art, the utility model has the beneficial effects that
The utility model is respectively arranged with seamless steel pipe and I-steel on existing single steel-pipe pile, in order to steel-pipe pile
Construction and assembly, improved multiple steel-pipe piles are assembled to form steel cofferdam between each other, the construction technology of the steel cofferdam
Compared with former construction method, construction efficiency improves 1 times.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the partial enlarged view of the utility model.
Fig. 3 is the structural schematic diagram of the fore shaft steel-pipe pile of the utility model.
Fig. 4 is the top view of the fore shaft steel-pipe pile of the utility model.
Fig. 5 is the specific assembling schematic diagram of the fore shaft steel-pipe pile of the utility model.
Fig. 6 is the partial enlarged view of the I-steel of the fore shaft steel-pipe pile of the utility model.
Fig. 7 is the partial enlarged view of the seamless steel pipe of the fore shaft steel-pipe pile of the utility model.
Specific embodiment
The utility model is described in detail in each embodiment shown in reference to the accompanying drawing, but it should be stated that,
These embodiments are not limitation of the utility model, those of ordinary skill in the art according to these embodiments made by function
Energy, method or equivalent transformation or substitution in structure, belong within the protection scope of the utility model.
Embodiment 1:
It please join shown in Fig. 1 and Fig. 2, structural schematic diagram of the Fig. 1 for the steel cofferdam of the utility model, steel cofferdam, including several
Root fore shaft steel-pipe pile 100, adjacent fore shaft steel-pipe pile 100 are surrounded by the inserting connection of fore shaft 200, several fore shaft steel-pipe piles 100
The steel cofferdam of closure can stop water to enter, for the intensity further for the entire steel cofferdam of increase, in the inside of steel cofferdam
Multiple cross one another reinforcing rods 500 are set.
As shown in Figure 3 and Figure 4, wherein fore shaft 200 includes the cloudy mouth being made of seamless steel pipe 210, and by I-steel 220
The Yang Kou of composition is constituted, and I-steel 220 is inserted from top to bottom into the assembly seam 2101 of seamless steel pipe 210, fore shaft steel-pipe pile
On be fixedly connected with an at least high-pressure water pipe 300；Seamless steel pipe 210 and I-steel 220 are set to the outer of fore shaft steel-pipe pile 100
Surface, positioned at fore shaft steel-pipe pile lower part high-pressure water pipe 300 water outlet 310 close to the bottom end of fore shaft steel-pipe pile.
Wherein central axes of the water outlet 310 perpendicular to fore shaft steel-pipe pile.And 300 integral solder of high-pressure water pipe is in fore shaft steel pipe
The outer surface of stake is fully welded when welding within the scope of the 0.5m of bottom, and rest part welds 10cm every 50cm；In work progress, in order to
Protect high-pressure water pipe, high-pressure water pipe bottom setting protection steel plate 400.
Specific embodiment described below is described in detail:
Fore shaft grouting: high flowing weak sand slurry sealing is poured into locking notch pile interconnecting piece.
Before sealing construction, first with giant to carrying out pigging processing in fore shaft, then carried out with high fluidity weak sand slurry
Sealing.
Fore shaft steel-pipe pile respectively welds a high-pressure water pipe using inner side and outer side, curved 90 degree of bottom water tube head, guarantees water pipe
It does not block, guarantee stake chow ring to washing away.
High-pressure water pipe top opening position is 1m higher than the water level that waters is constructed, and bottom and fore shaft steel-pipe pile are elongated, bottom when welding
It is fully welded within the scope of 0.5m, rest part welds 10cm every 50cm；
Above-mentioned high-pressure water pipe bottom setting protection steel plate 400, protects steel plate 400 by two pieces 3cm*15cm*12mm and one piece
The steel plate of 15cm*15cm*12mm forms.
After fore shaft inserting connection, carried out at joint filling at the interconnecting piece of I-steel and the gap of assembly seam using welding procedure
Reason.Above-mentioned cloudy mouth is process by diameter 159mm seamless steel pipe, and Yang Kou is process by 22a I-steel.
Further, steel cofferdam is round steel cofferdam, and round steel cofferdam a part is in water, and a part is located at land
On, 40 meters of the diameter of round steel cofferdam, top mark height+36m, bottom absolute altitude+10m.
Since steel cofferdam has several fore shaft steel pipe pile driving constructions to form, fore shaft steel pipe pile driving construction:
1, piling machinery
Waters selects the 100t crane ship collocation hydraulic vibration hammer of APE200-6 type as piling machinery.
2, fore shaft steel pipe pile driving construction
Fore shaft steel-pipe pile sequence of construction: it has been beaten to by root application work until fore shaft steel-pipe pile in waters is whole from side along arc.
Before piling, in pile body outside and fore shaft at coating butter mixture ointment (mixing ratio by weight are as follows: butter: pitch:
Dry sawdust: dry clay=2:2:2:1), to reduce frictional resistance when inserting piling, and reinforce barrier performance.First with crane ship by steel-pipe pile
It is hung at stake position progress pitching pile, survey crew cooperates positioning, and fore shaft will be aligned when pitching pile, in the fixed vibration hammer of stake top after insertion,
It is hammered.
There are two link is most important when piling:
First is that the inserting piling of the first pile, first, second steel-pipe pile must assure that position is accurate and vertical；Two are beaten
The 14a I-steel downhand welding of a 50cm long is respectively welded in the outside of stake after stake, it will be in 6 meters of 1 root long of 25a I-steel placing flat
Face, and be welded and fixed, 609 I-steel of ф, which is set, on the outside of I-steel cantilever is limited.Set the 3rd, 4,5 piles
When, the outer arm of stake is measured to the distance of 25a I-steel to be positioned.
Second is that the processing of sealing stake.Since cofferdam is larger, the interval error between steel-pipe pile is also larger, therefore seals steel pipe
It needs especially to handle.When getting to seal location, the distance between good sealing is surveyed, the length of pin thread is lengthened or shortened, adjusted with this
The distance between steel-pipe pile is saved, if can especially process one two steel pipes again apart from excessive, fore shaft is enable to successfully complete.
The steel cofferdam that fore shaft steel-pipe pile is formed is Φ 40m circular configuration, using the fore shaft steel-pipe pile of Φ 1000mm × 10mm,
Stake top absolute altitude 36m, stake bottom absolute altitude 10m, the long 26m of steel-pipe pile.Totally 100 fore shaft steel-pipe piles, working water level is based on 33m, then waters
Fore shaft steel-pipe pile 59, land-based area fore shaft steel-pipe pile totally 41.
Using the hydraulic vibration hammer of APE200-6 type, before crane ship slings hydraulic vibration hammer, 4 are increased on vibration hammer
The φ 28mm wirerope and steel-pipe pile hanging ring of long 1.5m carries out buckle fixation, and 80T crawler crane cooperation crane ship in bank side slings fore shaft
Steel-pipe pile improves speed of application, it is ensured that the safety of construction.
Crane ship controls the position of ship by the hoist engine folding and unfolding hawser carried on ship, and mobile crane ship makes locking notch pile
It is inserted into the positioning steel tube stake of φ 800, after fixing, mobile vibration hammer is inserted in fore shaft steel-pipe pile in vibration hammer clamping opening, clamps
After extract, carry out steel-pipe pile vibration sink.Fore shaft steel-pipe pile shakes in sinking watching, while being aided with high-pressure water pipe and carrying out high pressure
Jetting, greatly reduced the frictional resistance of pile sinking, the measurement monitoring of survey crew's overall process, by construction stake position and guide pile away from
From, it is ensured that the plan-position of steel-pipe pile and pile body verticality.Compared with former construction method, construction efficiency improves this construction technology
1 times.
After the construction of this engineering fore shaft steel-pipe pile is aided with water jetting at high pressure technique using the construction of hydraulic vibration hammer, achieve apparent
Duration, economic benefit.
Embodiment 2:
Referring to shown in Fig. 5, Fig. 6 and Fig. 7, the specific structure of fore shaft steel-pipe pile, fore shaft are given in the present embodiment
Steel-pipe pile 100, comprising: steel pipe pile body 101, the outer surface of steel pipe pile body are provided with seamless steel pipe 210 and I-steel
220, the central axes of seamless steel pipe and I-steel are in the same plane；Seamless steel pipe 210 is directed away from the side of steel pipe pile body
To the seam of setting assembly from top to bottom 2101, I-steel 220 is whole perpendicular to steel pipe pile body 110, the support portion 2201 of I-steel
It is fixedly connected in steel pipe pile body 110, the diameter of the interconnecting piece 2202 of I-steel is less than or equal to the gap size of assembly seam, work
The insertion section 2203 of word steel is caught in the inner cavity of seamless steel pipe 210.
Specifically, the processing of fore shaft steel-pipe pile: the production of fore shaft steel-pipe pile includes the spreading of welding and the stake of negative and positive mouth.Lock
Mouthful steel-pipe pile using I22a I-steel as Yang Kou, Φ 159mm × 10mm seamless steel pipe as cloudy mouth, Yang Kou and cloudy mouth axis at
180º.Fore shaft steel-pipe pile process when to required precision height, fore shaft position first can be determined using spot welding, then implement it is two-sided be fully welded, weld
It stitches thickness and is not less than 10mm.For the intensity for reinforcing fore shaft, reinforce steel plate, plate thickness 1cm together every one meter of welding in fore shaft two sides.
After the completion of fore shaft welding processing, two sides fore shaft is made to draw by test with 2~3 people with the stub of two 2~3m
Dynamic pass through is advisable.Fore shaft can't pass or pile body have bending, distortion the defects of, using clod wash, heat strike (temperature be no more than 800~
1000 DEG C), the methods of soldering, riveting benefit are rebuild.
When steel-pipe pile spreading, a groove need to be opened at stake end, when welding, first butt welding, then reinforcement of weld plate, and in stake end system
Hang stake holes.
The construction of waters fore shaft steel-pipe pile: handling steel-pipe pile is hung using two o'clock, and pays attention to protecting fore shaft, prevents fore shaft from becoming
Shape.Steel-pipe pile is deposited on flat firm place (place carry out compaction treatment), and layering is stacked, and every layer heap is put quantity and is no more than
3 layers, each interlayer bolster wood, chock spacing is 3-4 meters, and upper and lower layer chock should be in same vertical line.It is land when waters is constructed
Transhipment lifting is cooperated using 25T truck crane, cooperates the construction of waters fore shaft steel-pipe pile.
Tool of the series of detailed descriptions listed above only for the feasible embodiment of the utility model
Body explanation, they are all without departing from made by the utility model skill spirit not to limit the protection scope of the utility model
Equivalent implementations or change should be included within the scope of protection of this utility model.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. a kind of steel cofferdam, including several fore shaft steel-pipe piles, the adjacent fore shaft steel-pipe pile is inserted by fore shaft and is connected, special
Sign is that fore shaft includes the cloudy mouth being made of seamless steel pipe, and the Yang Kou being made of I-steel, and the I-steel is from top to bottom
Inserting enters in the assembly seam of the seamless steel pipe, and an at least high-pressure water pipe is fixedly connected on the fore shaft steel-pipe pile；
The seamless steel pipe and I-steel are set to the outer surface of the fore shaft steel-pipe pile, are located at fore shaft steel-pipe pile lower part
High-pressure water pipe water outlet close to the bottom end of the fore shaft steel-pipe pile.
2. a kind of steel cofferdam according to claim 1, which is characterized in that the water outlet is perpendicular to the fore shaft steel-pipe pile
Central axes.
3. a kind of steel cofferdam according to claim 2, which is characterized in that the high-pressure water pipe integral solder is in the fore shaft
The outer surface of steel-pipe pile is fully welded when welding within the scope of the 0.5m of bottom, and rest part welds 10cm every 50cm.
4. a kind of steel cofferdam according to claim 1, which is characterized in that the high-pressure water pipe bottom setting protection steel plate.
5. a kind of steel cofferdam described in one of -4 according to claim 1, which is characterized in that the fore shaft steel-pipe pile includes steel-pipe pile
Assembly seam is arranged in ontology, the direction that the seamless steel pipe is directed away from the steel pipe pile body from top to bottom, and the I-steel is whole
Body is perpendicular to the steel pipe pile body, and the support portion of the I-steel is fixedly connected in the steel pipe pile body, the I-shaped
The diameter of the interconnecting piece of steel is less than or equal to the gap size of the assembly seam.
6. a kind of steel cofferdam according to claim 5, which is characterized in that after the fore shaft inserting connection, the I-steel
Interconnecting piece and it is described assembly seam gap at using welding procedure carry out joint filling processing.
7. a kind of steel cofferdam according to claim 5, which is characterized in that the steel cofferdam is round steel cofferdam, the circle
Fashioned iron cofferdam a part is in water, a part be located at land, 40 meters of the diameter of the round steel cofferdam, top mark height+36m,
Bottom absolute altitude+10m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821609979.2U CN209053107U (en) | 2018-09-30 | 2018-09-30 | A kind of steel cofferdam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821609979.2U CN209053107U (en) | 2018-09-30 | 2018-09-30 | A kind of steel cofferdam |
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| Publication Number | Publication Date |
|---|---|
| CN209053107U true CN209053107U (en) | 2019-07-02 |
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ID=67049847
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| CN201821609979.2U Active CN209053107U (en) | 2018-09-30 | 2018-09-30 | A kind of steel cofferdam |
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| CN (1) | CN209053107U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453704A (en) * | 2019-08-02 | 2019-11-15 | 中交第二航务工程局有限公司 | A kind of marine anchorage construction combined type cofferdam structure of large size and its construction method |
-
2018
- 2018-09-30 CN CN201821609979.2U patent/CN209053107U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453704A (en) * | 2019-08-02 | 2019-11-15 | 中交第二航务工程局有限公司 | A kind of marine anchorage construction combined type cofferdam structure of large size and its construction method |
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