CN207314322U - A kind of guide frame for the construction of Larsen steel sheet pile circular cofferdam - Google Patents
A kind of guide frame for the construction of Larsen steel sheet pile circular cofferdam Download PDFInfo
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- CN207314322U CN207314322U CN201721276690.9U CN201721276690U CN207314322U CN 207314322 U CN207314322 U CN 207314322U CN 201721276690 U CN201721276690 U CN 201721276690U CN 207314322 U CN207314322 U CN 207314322U
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- nose girder
- inner ring
- outer shroud
- guide
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Abstract
The utility model discloses a kind of guide frame for the construction of Larsen steel sheet pile circular cofferdam, including inner ring nose girder, more outer shroud guide piles and the Duo Gen inner ring guide piles for being arranged on outer shroud nose girder on the outside of circular cofferdam, being arranged on the inside of circular cofferdam；The outer shroud nose girder and the inner ring nose girder are in one in the horizontal plane on the water surface；The more outer shroud guide piles are evenly distributed to be welded in the outside of the outer shroud nose girder, the outer shroud nose girder with the more outer shroud guide piles；The more inner ring guide piles are evenly distributed to be welded in the inner side of the inner ring nose girder, the inner ring nose girder with the more inner ring guide piles.The utility model can ensure the vertical of the correct and stake of pile sinking axial location, stake can be controlled squeezes into precision, prevent the bending deformation of sheet pile and improve the penetration capability of stake, solve circular cofferdam because work progress malformation and caused by close up the problems such as difficult, water-stagnating effect is poor.
Description
Technical field
A kind of guide frame of steel sheet pile construction is the utility model is related to, particularly one kind is enclosed for Larsen steel sheet pile circle
The guide frame of weir construction.
Background technology
With flourishing for China's infrastructure cause, the construction of bridge is more and more, and structure type is more and more, work
Journey environment is more complicated, and quality and safety standard are higher and higher, and the substructure across on-water bridge is in water, in construction
To avoid by water currents, it is necessary to build water stop cofferdam to construction area.The structure type in cofferdam is also more and more, especially round
Shape steel sheet-pile cofferdam.Ensure that the position of steel sheet pile construction is accurate, be to ensure that cofferdam accurately closes up, water-stagnating effect and works are constructed
The key of safety and quality, therefore the accurate positionin construction of steel sheet pile becomes the most important thing in steel sheet pile cofferdam construction.
The common construction method in cofferdam is at present：Using I-steel or Larsen steel sheet pile lap connection, and mixed thoroughly with tung oil
Sawdust blocks interface, forms water stop cofferdam.Then cofferdam internal water accumulation is drained with water pump and carries out interior construction.But due to circle
Steel sheet-pile cofferdam supporting construction overall stability is poor and support construction process is subject to the construction infections such as current, geological conditions
Yielding, larger using the steel sheet pile circular cofferdam deformation of above method construction, effect is undesirable.
The content of the invention
The utility model provides one kind for Larsen steel sheet pile circle to solve technical problem present in known technology
The guide frame of cofferdam construction, the structure can reduce the malformation in circular cofferdam work progress, cofferdam is easily closed up,
Water-stagnating effect is good.
The utility model is adopted the technical scheme that to solve technical problem present in known technology：One kind is used to draw
The guide frame of gloomy steel sheet pile circular cofferdam construction, including be arranged on outer shroud nose girder on the outside of circular cofferdam, be arranged on circle and enclose
Inner ring nose girder, more outer shroud guide piles and Duo Gen inner ring guide piles on the inside of weir；At the outer shroud nose girder and the inner ring nose girder
In one in the horizontal plane on the water surface；The more outer shroud guide piles are evenly distributed in the outer of the outer shroud nose girder
Side, the outer shroud nose girder are welded with the more outer shroud guide piles；The more inner ring guide piles are evenly distributed described interior
The inner side of ring nose girder, the inner ring nose girder are welded with the more inner ring guide piles.
The outer shroud nose girder and the inner ring nose girder use multi-segmental welding structure.
The outer shroud nose girder and the inner ring nose girder are made of Larsen steel sheet pile.
The outer shroud guide pile and the inner ring guide pile are made of I-steel.
Interval between the outer shroud nose girder and the inner ring nose girder is bigger 2cm than the width of circular cofferdam.
The utility model has the advantages and positive effects of：By increasing guide frame, it can ensure pile sinking axis position
The correct and stake put it is vertical, can control stake squeezes into precision, prevent sheet pile bending deformation and improve stake penetration capability,
Solve circular cofferdam because work progress malformation and caused by close up the problems such as difficult, water-stagnating effect is poor, ensure that construction
Quality and safety, improve construction efficiency and construction precision, and the utility model is simple in structure, cost is low, rigidity is big, hard
Gu stabilization, dependable performance.
Brief description of the drawings
Fig. 1 is the plan of the utility model；
Fig. 2 is the elevation of the utility model.
In figure：1st, circular cofferdam；2nd, outer shroud guide pile；3rd, outer shroud nose girder；4th, inner ring guide pile；5th, inner ring nose girder；6th, water
Face；7th, riverbed.
Embodiment
For that can further appreciate that the invention, features and effects of the utility model, the following examples are hereby given, and coordinates
Attached drawing describes in detail as follows：
Please refer to Fig.1 and Fig. 2, a kind of guide frame for the construction of Larsen steel sheet pile circular cofferdam, including be arranged on circle
In the outer shroud nose girder 3 in the outside of shape cofferdam 1, inner ring nose girder 5, more outer shroud guide piles 2 and the Duo Gen for being arranged on the inner side of circular cofferdam 1
Ring guide pile 4, the outer shroud nose girder 3 and the inner ring nose girder 5 are in the same horizontal plane positioned on the water surface 6, more
The outer shroud guide pile 2 is evenly distributed to be determined in the outside of the outer shroud nose girder 3, the outer shroud nose girder 3 with the more outer shrouds
Position stake 2 is welded；The more inner ring guide piles 4 are evenly distributed in the inner side of the inner ring nose girder 5, the inner ring nose girder 5 with
The more inner ring guide piles 4 weld.
In the present embodiment, the outer shroud nose girder 3 and the inner ring nose girder 5 use multi-segmental welding structure.It is described outer
Ring nose girder 3 and the inner ring nose girder 5 are made of Larsen steel sheet pile.The outer shroud guide pile 2 and the inner ring guide pile 4 are equal
For made of I-steel.Interval between the outer shroud nose girder 3 and the inner ring nose girder 5 is bigger 2cm than the width of circular cofferdam 1.
The construction method of the utility model：
1) component is processed：
According to on-site actual situations, premised on controlling the construction height of guide pile and improving construction efficiency, determine
After the length of guide pile, locating and machining stake；According to the size in cofferdam, nose girder is processed, i.e., Larsen steel sheet pile is bent into design
Radian, scene carry out examination spelling.
2) pile driving construction is positioned：
1. to guide pile by root inspection before injection, rejecting deformation is serious, just can be used after failure is to be trimmed.Fixed
The head grease of position stake, squeezes into, extracts to facilitate.
2. using total powerstation and the position of level meter control and adjustment guide pile.
3. guide pile can use driving method by hammer, vibrations to squeeze into the injections such as method, static(al) plunging and vibration driving method by hammer
Method.
4. it is ensured that the verticality of stake and squeezing into the depth in riverbed 7 during injection.Every guide pile of measurement monitoring at any time
Gradient be no more than 2%, when deflection it is excessive cannot with pull together method align when, it is necessary to pull up and beat again.
3) nose girder is installed：
After positioning pile driving construction completion, accurately measured in more than 6 positions of exposing the surface and indicate the position of nose girder, will tried
Each segment of nose girder spelled is lifted to marker location respectively, then welds together guide pile and nose girder, and nose girder is respectively between section
Answer firm welding.
4) guide frame is removed：
When guide frame is removed, first by nose girder each section separate, then nose girder and guide pile Cutting section by section are opened, will led paragraph by paragraph
Beam hangs cofferdam.Nose girder extracts guide pile after removing.
Although the preferred embodiment of the utility model is described above in conjunction with attached drawing, the utility model is not
Above-mentioned embodiment is confined to, above-mentioned embodiment is only schematical, is not restricted, ability
The those of ordinary skill in domain is not departing from the utility model aims and claimed under the enlightenment of the utility model
In the case of scope, many forms can also be made, these are belonged within the scope of protection of the utility model.
Claims (5)
1. a kind of guide frame for the construction of Larsen steel sheet pile circular cofferdam, it is characterised in that including being arranged on circular cofferdam
The outer shroud nose girder in outside, the inner ring nose girder being arranged on the inside of circular cofferdam, more outer shroud guide piles and Duo Gen inner ring guide piles；Institute
State outer shroud nose girder and the inner ring nose girder is in one in the horizontal plane on the water surface；More outer shroud guide piles edge weeks
To the outside for being distributed on the outer shroud nose girder, the outer shroud nose girder is welded with the more outer shroud guide piles；The more inner ring
Guide pile is evenly distributed to be welded in the inner side of the inner ring nose girder, the inner ring nose girder with the more inner ring guide piles.
2. the guide frame according to claim 1 for the construction of Larsen steel sheet pile circular cofferdam, it is characterised in that described
Outer shroud nose girder and the inner ring nose girder use multi-segmental welding structure.
3. the guide frame according to claim 2 for the construction of Larsen steel sheet pile circular cofferdam, it is characterised in that described
Outer shroud nose girder and the inner ring nose girder are made of Larsen steel sheet pile.
4. the guide frame according to claim 1 for the construction of Larsen steel sheet pile circular cofferdam, it is characterised in that described
Outer shroud guide pile and the inner ring guide pile are made of I-steel.
5. the guide frame according to claim 1 for the construction of Larsen steel sheet pile circular cofferdam, it is characterised in that described
Interval between outer shroud nose girder and the inner ring nose girder is bigger 2cm than the width of circular cofferdam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721276690.9U CN207314322U (en) | 2017-09-29 | 2017-09-29 | A kind of guide frame for the construction of Larsen steel sheet pile circular cofferdam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721276690.9U CN207314322U (en) | 2017-09-29 | 2017-09-29 | A kind of guide frame for the construction of Larsen steel sheet pile circular cofferdam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207314322U true CN207314322U (en) | 2018-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721276690.9U Active CN207314322U (en) | 2017-09-29 | 2017-09-29 | A kind of guide frame for the construction of Larsen steel sheet pile circular cofferdam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207314322U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083167A (en) * | 2018-08-27 | 2018-12-25 | 中铁二十三局集团第工程有限公司 | A kind of construction method of cofferdam of base slab for high peg |
| CN110499772A (en) * | 2019-08-29 | 2019-11-26 | 中天路桥有限公司 | A kind of rock matter riverbed double-layer plate pile cofferdam construction method |
| CN111254959A (en) * | 2020-02-24 | 2020-06-09 | 中铁大桥局第九工程有限公司 | Underwater steel sheet pile cofferdam structure and construction method |
| CN111691443A (en) * | 2020-06-22 | 2020-09-22 | 福建省华策建设集团有限公司 | Larsen steel sheet pile cofferdam and construction method thereof |
-
2017
- 2017-09-29 CN CN201721276690.9U patent/CN207314322U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083167A (en) * | 2018-08-27 | 2018-12-25 | 中铁二十三局集团第工程有限公司 | A kind of construction method of cofferdam of base slab for high peg |
| CN110499772A (en) * | 2019-08-29 | 2019-11-26 | 中天路桥有限公司 | A kind of rock matter riverbed double-layer plate pile cofferdam construction method |
| CN111254959A (en) * | 2020-02-24 | 2020-06-09 | 中铁大桥局第九工程有限公司 | Underwater steel sheet pile cofferdam structure and construction method |
| CN111691443A (en) * | 2020-06-22 | 2020-09-22 | 福建省华策建设集团有限公司 | Larsen steel sheet pile cofferdam and construction method thereof |
| CN111691443B (en) * | 2020-06-22 | 2021-09-28 | 福建省华策建设集团有限公司 | Larsen steel sheet pile cofferdam and construction method thereof |
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