CN207295746U - A kind of bucket foundation steel sheet pile combined type cofferdam - Google Patents

A kind of bucket foundation steel sheet pile combined type cofferdam Download PDF

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Publication number
CN207295746U
CN207295746U CN201720974251.9U CN201720974251U CN207295746U CN 207295746 U CN207295746 U CN 207295746U CN 201720974251 U CN201720974251 U CN 201720974251U CN 207295746 U CN207295746 U CN 207295746U
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China
Prior art keywords
anchor ear
girder steel
oriented
sheet pile
bucket foundation
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CN201720974251.9U
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Chinese (zh)
Inventor
严冰
李孟国
张娜
韩西军
左书华
韩志远
张书庄
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Tianjin Research Institute for Water Transport Engineering MOT
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Tianjin Research Institute for Water Transport Engineering MOT
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Abstract

The utility model discloses a kind of new cartridge type base steel plates stake combined type cofferdam, mainly by bucket foundation, Larsen steel sheet pile, be oriented to girder steel frame (including inside casing and outline border) and anchor ear form, the bucket foundation using by the way of suction sinks and passes through in the sea bed of guiding girder steel in-out-snap both sides;The anchor ear is made of two semicircle anchor ear rings, high-strength bolt, anchor ear support and welding plate, and two semicircle anchor ear rings are installed on bucket foundation using high-strength bolt, and anchor ear supports one end to weld semicircle anchor ear ring, other end welding welding plate;It is oriented to girder steel frame to weld with welding plate, Larsen steel sheet pile is inserted into sea bed using pitching pile machine being oriented between girder steel inside casing and outline border.The utility model, as the direction peg of construction cofferdam and support stake, the installation and recycling of bucket foundation can be realized by the way of suction penetration and water filling jacking, the construction period is saved, reduces construction cost using bucket foundation.

Description

A kind of bucket foundation steel sheet pile combined type cofferdam
Technical field
The utility model belongs to harbour and hydraulic engineering construction technology field, and in particular to a kind of new cartridge type base steel plates Stake combined type cofferdam.
Background technology
In harbour and construction of hydro project, to build permanent water conservancy projects, the provisional building enclosure built.It is made With being to prevent water and soil from building position into building, so as in cofferdam internal drainage, excavation pit, build building.Generally It is mainly used in waterwork, in addition to the part as formal building, cofferdam is generally removed after being finished.
The principal mode in cofferdam has earth rock cofferdam, wood sheet-pile cofferdam, steel sheet-pile cofferdam and reinforced concrete sheet pile to enclose at present Weir etc., earth rock cofferdam and wood sheet-pile cofferdam installation and later stage Demolition Construction are complicated, although steel sheet pile has light, readily removable remove The advantages that short construction period and low cost, but its globality poor, it is smaller to bear horizontal loading, reinforced concrete sheet pile globality By force, the advantages that stability is high and can bear larger horizontal loading and vertical load, but long construction period, cost are higher. Therefore need to propose a kind of new cofferdam device, reduce construction cost and cycle.
Bucket foundation is the steel drum basis of a kind of bottom opening, top closure, is a kind of new ocean basis shape Formula, using by basic injection soft soil foundation, when being recycled on basis, being made by the way of suction sinks and passes through by the way of the water filling into cylinder Basis is jacked out in soft soil foundation, and bucket foundation has the advantages that easy for construction, cost is low and reusable, is widely used in sea In upper wind power plant, offshore platform foundation and bridge construction.
To sum up, cofferdam construction efficiency is improved, the horizontal bearing capacity in cofferdam is improved, reduces difficulty of construction and cost, be at the same time Easy to cofferdam reuse, it is necessary to propose a kind of new cofferdam structure.
Utility model content
The utility model is in order to improve the horizontal bearing capacity in cofferdam and integral strength, it is proposed that a kind of new bucket foundation steel Sheet pile combined type cofferdam.
A kind of new cartridge type base steel plates stake combined type cofferdam, mainly including bucket foundation, Larsen steel sheet pile, guiding girder steel Frame and anchor ear, the guiding girder steel frame include being oriented to girder steel inside casing and are oriented to girder steel outline border, be oriented to two inside and outside girder steel frame Side is intervally distributed with using the bucket foundation being installed on by the way of suction sinks and passes through in sea bed (soft soil foundation);The guiding girder steel Connected and fixed by anchor ear between frame and bucket foundation, Larsen steel plate is inserted between being oriented to girder steel inside casing and being oriented to girder steel outline border Stake.
The anchor ear is made of two semicircle anchor ear rings, high-strength bolt, anchor ear support and welding plate, and two semicircles are embraced Garter spring is sleeved on bucket foundation using high-strength bolt, and anchor ear is supported on one end welding one of which semicircle anchor ear ring, The other end is welded in welding plate;The welding plate, which is welded on, to be oriented on girder steel frame, be oriented to girder steel inside casing and be oriented to girder steel outline border it Between using pitching pile machine by Larsen steel sheet pile be inserted into sea bed in.
Larsen steel sheet pile described in the utility model is divided into sizing two kinds of forms of corner pile and common Larsen steel sheet pile, sizing Corner pile is located at the guiding girder steel frame corner in cofferdam.The guiding girder steel frame can be square or rectangle or other Shape.
The advantages of the utility model and beneficial effect:
The utility model, as the direction peg of construction cofferdam and support stake, can use suction penetration and note using bucket foundation The mode of water jacking realizes the installation and recycling of bucket foundation, saves the construction period, reduces construction cost.
Brief description of the drawings
Fig. 1 is a kind of partial top view in new cartridge type base steel plates stake combined type cofferdam of the utility model;
Fig. 2 is a kind of partial side view in new cartridge type base steel plates stake combined type cofferdam of the utility model;
Fig. 3 is the top view of the utility model anchor ear;
Fig. 4 is the side view of the utility model anchor ear;
Fig. 5 is the side view of the common Larsen steel sheet pile of the utility model;
Fig. 6 is the side view of the utility model sizing corner pile;
Fig. 7 is a kind of overall diagram in new cartridge type base steel plates stake combined type cofferdam of the utility model;
Marginal data:1- bucket foundations;2- is oriented to girder steel frame;3- anchor ears;4- Larsen steel sheet piles;5- semicircle anchor ear rings; 6- high-strength bolts;7- anchor ears support;8- welding plates.
Embodiment
A kind of new cartridge type base steel plates stake combined type cofferdam as shown in Figure 1 and Figure 7, mainly by bucket foundation 1, Larsen Steel sheet pile 4, guiding girder steel frame 2 and anchor ear 3 form, and the guiding girder steel frame includes being oriented to girder steel inside casing and is oriented to outside girder steel Frame, is intervally distributed with the cartridge type base being installed on by the way of being sunk and passed through using suction in soft soil foundation inside and outside guiding girder steel frame Plinth 1;Connected and fixed by anchor ear 3 between the guiding girder steel frame and bucket foundation, be oriented to girder steel inside casing and be oriented to girder steel Larsen steel sheet pile 4 is inserted between outline border.
The anchor ear is made of (referring to Fig. 3 two semicircle anchor ear rings 5, high-strength bolt 6, anchor ear support 7 and welding plate 8 And Fig. 4), two semicircle anchor ear rings 5 are sleeved on bucket foundation using high-strength bolt 6, and one end of anchor ear support 7 is welded on it In a semicircle anchor ear ring 5 on, the other end is welded in welding plate 8;The welding plate, which is welded on, to be oriented on girder steel frame 2, is being led Larsen steel sheet pile 4 is inserted into sea bed using pitching pile machine between girder steel inside casing and guiding girder steel outline border.Wherein, Larsen steel sheet pile It is divided into sizing corner pile (referring to Fig. 6) and common Larsen steel sheet pile (referring to Fig. 5) composition, sizing corner pile is located at the guiding girder steel in cofferdam The corner of frame.The guiding girder steel frame can be square or rectangle or other shapes.
The installation process in bucket foundation steel sheet pile combined type cofferdam
When implementing new cartridge type base steel plates stake combined type cofferdam, bucket foundation 1 is positioned first, using negative pressure Bucket foundation 1 is installed to designated position by heavy mode of passing through, after installing two groups of bucket foundations 1 i.e. adjacent 4 bucket foundations, in cartridge type Basic top passes sequentially through high-strength bolt 6 and two semicircle anchor ear rings 5 is fixed on bucket foundation, and anchor ear support 7 is welded It is connected on one of semicircle anchor ear ring 5, the other end is welded with welding plate 8, remaining bucket foundation 1 can be carried out at the same time construction.
Girder steel frame 2 will be oriented to weld with welding plate 8, girder steel frame 2 is oriented to and is made of I-steel, be oriented to each portion of girder steel frame 2 / use is welded to connect.
After guiding girder steel frame 2 installs, Larsen steel sheet pile 4 is close to 2 inserting piling of guiding girder steel frame using pitching pile machine and is being led It is stringent in inserting piling and control the two-way vertical of Larsen steel sheet pile into girder steel inside casing and the sea bed being oriented between girder steel outline border Degree, and be detected using total powerstation.If cofferdam is rectangular, in construction corner first by sizing corner pile, then adjusting The position of common Larsen steel sheet pile.After completing left and right Larsen steel sheet pile construction, new cartridge type base steel plates stake combined type cofferdam is applied Work finishes.

Claims (4)

  1. A kind of 1. bucket foundation steel sheet pile combined type cofferdam, it is characterised in that:Including bucket foundation, Larsen steel sheet pile, it is oriented to steel Beam frame and anchor ear, the guiding girder steel frame include being oriented to girder steel inside casing and are oriented to girder steel outline border, be oriented to inside and outside girder steel frame Both sides are intervally distributed with using the bucket foundation being installed on by the way of suction sinks and passes through in sea bed;The guiding girder steel frame and cartridge type Connected and fixed by anchor ear between basis, Larsen steel sheet pile is inserted between being oriented to girder steel inside casing and being oriented to girder steel outline border.
  2. 2. bucket foundation steel sheet pile combined type cofferdam according to claim 1, it is characterised in that:The anchor ear is by two Semicircle anchor ear ring, high-strength bolt, anchor ear support and welding plate composition, two semicircle anchor ear rings are sleeved on cylinder using high-strength bolt On the basis of type, anchor ear is supported on one end welding one of which semicircle anchor ear ring, and the other end is welded in welding plate, the weldering Plate, which is welded on, to be oriented on girder steel frame.
  3. 3. bucket foundation steel sheet pile combined type cofferdam according to claim 1, it is characterised in that:The Larsen steel sheet pile It is divided into sizing two kinds of forms of corner pile and common Larsen steel sheet pile, sizing corner pile is located at the guiding girder steel frame corner in cofferdam.
  4. 4. bucket foundation steel sheet pile combined type cofferdam according to any one of claims 1 to 3, it is characterised in that:Described It is square or rectangle to be oriented to girder steel frame.
CN201720974251.9U 2017-08-07 2017-08-07 A kind of bucket foundation steel sheet pile combined type cofferdam Active CN207295746U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720974251.9U CN207295746U (en) 2017-08-07 2017-08-07 A kind of bucket foundation steel sheet pile combined type cofferdam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720974251.9U CN207295746U (en) 2017-08-07 2017-08-07 A kind of bucket foundation steel sheet pile combined type cofferdam

Publications (1)

Publication Number Publication Date
CN207295746U true CN207295746U (en) 2018-05-01

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Application Number Title Priority Date Filing Date
CN201720974251.9U Active CN207295746U (en) 2017-08-07 2017-08-07 A kind of bucket foundation steel sheet pile combined type cofferdam

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CN (1) CN207295746U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111305188A (en) * 2019-11-28 2020-06-19 中国一冶集团有限公司 Construction method for accurately guiding pile sinking in soft soil area
CN113756347A (en) * 2021-10-09 2021-12-07 山东高速路桥集团股份有限公司 Supporting bearing platform construction auxiliary equipment and construction method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111305188A (en) * 2019-11-28 2020-06-19 中国一冶集团有限公司 Construction method for accurately guiding pile sinking in soft soil area
CN113756347A (en) * 2021-10-09 2021-12-07 山东高速路桥集团股份有限公司 Supporting bearing platform construction auxiliary equipment and construction method

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