CN208604615U - A kind of pressurization sinking device for open caisson construction - Google Patents
A kind of pressurization sinking device for open caisson construction Download PDFInfo
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- CN208604615U CN208604615U CN201820297239.3U CN201820297239U CN208604615U CN 208604615 U CN208604615 U CN 208604615U CN 201820297239 U CN201820297239 U CN 201820297239U CN 208604615 U CN208604615 U CN 208604615U
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- counter
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- force
- pressurization
- open caisson
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Abstract
The utility model belongs to a kind of pressurization sinking device for open caisson construction, including root pile, sink bracket, hydraulic cylinder, well head beam, and the hydraulic cylinder is inverted tail portion and is fixed on counter-force bracket.The well body is set to by the stud sides of counter-force bracket, and the hydraulic cylinder is inverted tail portion and is fixed on counter-force bracket, and well body top and the piston rod of hydraulic cylinder offset, and realizes that pressurization is sunk；The bottom beam of the counter-force bracket provides counter-force by the earth anchor root pile and is fixed, and is arranged on the well head beam, and the earth anchor root pile is connect with the counter-force bracket by fining twisted steel or fashioned iron.The utility model structure is simple, installs and easy to operate, applicability is wide, can be used for the open caisson construction of various well body diameters, shape.
Description
[technical field]
The utility model belongs to technical field of construction, and in particular to a kind of pressurization sinking device for open caisson construction.
[background technique]
Open caisson construction at present generallys use the method for excavating well body by open caisson self weight, cooperation, and this method requires to have enough
Well body dead load, construction speed is slower, is commonly encountered difficult situation, is easy to happen well body skew and other issues.
The utility model can provide additional pushing during open caisson makes every effort to promote into sinking, can accelerate speed of application, controls open caisson posture,
Overcome difficulties geological conditions.
[summary of the invention]
The utility model makes during open caisson construction, no longer needs to frequently arrange the interior soil body that digs a well, well body is existed
Soil layer additionally is penetrated with the help of lower pressure, to realize controllable, effective, stable sinking；It solves to face hard soil property simultaneously
When open caisson the problem of being difficult to.
The technical solution adopted in the utility model is as follows:
A kind of pressurization sinking device for open caisson construction, it is characterised in that: including earth anchor root pile 1, well head beam 2, anti-
Power bracket 3, hydraulic cylinder 4 and well body 5；
The well body 5 is set to by the stud sides of counter-force bracket 3, and the hydraulic cylinder 3 is inverted tail portion and is fixed on counter-force branch
Frame, 5 top of well body and the piston rod of hydraulic cylinder offset, and realize that pressurization is sunk；The bottom beam of the counter-force bracket 3 passes through described
Earth anchor root pile 1 provides counter-force and is fixed, and is arranged on the well head beam 2, the earth anchor root pile 1 with it is described anti-
Power bracket 3 is connected by fining twisted steel or fashioned iron.
The earth anchor root pile 1 is long according to geological condition adjustment stake, to meet withdrawal resistance.
The well head beam 2 uses concreting, to form the mounting platform of the counter-force bracket 3, and meanwhile it is described
Well head beam 2 plays the role of correction to well sinking direction.
The counter-force bracket 2 is welded to form by Steel section members such as column, bottom beam, diagonal brace, upper bracket, middle brackets, column,
Bottom beam, diagonal brace constitute the counter-force bracket of a triangular structure of right angle, and reinforce fixing by upper bracket, middle bracket.
The earth anchor root pile 1 is connect with the counter-force bracket 3 by fining twisted steel or fashioned iron, finish rolling screw thread
Steel or fashioned iron protrude into 1 certain length of earth anchor root pile, and the steel reinforcement cage welding inside pile body, connector and root pile
1 is connected and fixed by mechanical snap power with chemical adhesion between the two；Fining twisted steel or fashioned iron pass through the counter-force
On bracket 3 after reserving installation hole, it is connected and fixed using welding or nut；The counter-force bracket 3 is arranged in the well head beam 2
On.
The utility model utility model can provide additional controllable-thrust during open caisson construction to well body, so that heavy
Well construction can more rapidly efficiency, it is no longer necessary to so that open caisson is sunk by gravity by taking the soil body in well body, and then reduce well
The dead load of body saves cost savings material；And speed of application can be accelerated, open caisson posture is controlled, geological conditions is overcome difficulties.
The utility model structure is simple, installs and easy to operate, has ensured controllable, stable, effectively sinking during open caisson construction.Letter
Single says:
1, the utility model structure is simple, installs and easy to operate；
2, the pressurization sinking during open caisson is realized using the utility model；
3, the utility model applicability is wide, can be used for the open caisson construction of various well body diameters, shape.
[Detailed description of the invention]
Fig. 1 is the utility model implementation result schematic diagram；
Description of symbols in figure:
1 earth anchor root pile, 2 well head beams, 3 counter-force brackets, 4 hydraulic cylinders, 5 well bodies.
[specific embodiment]
The technical solution of the utility model is further described with reference to the accompanying drawings and embodiments, following instance is for saying
Bright the utility model, but cannot be used to limit the scope of the utility model.
A kind of pressure sinking device for open caisson construction, it is characterised in that: including earth anchor root pile 1, well head beam (2), counter-force
Bracket 3, hydraulic cylinder 4.Whole device provides counter-force by the earth anchor root pile 1 and is fixed, the earth anchor tree root
Stake 1 is long according to geological condition adjustment stake, to meet resistance to plucking force request.The counter-force bracket 3 is by column, bottom beam, diagonal brace, upper ox
The Steel section members such as leg, middle bracket are welded to form.The hydraulic cylinder 4 is inverted tail portion and is fixed on counter-force bracket, and counter-force acts on
Upper bracket.
The earth anchor root pile 1 is connect with the counter-force bracket 3 by fining twisted steel or fashioned iron, finish rolling screw thread
Steel or fashioned iron protrude into 1 certain length of earth anchor root pile, are connected between the two by mechanical snap power and chemical adhesion
Connect fixation；Perhaps fashioned iron passes through on 3 bottom beam of counter-force bracket after reserving installation hole using welding or spiral shell fining twisted steel
Mother is connected and fixed；The counter-force bracket 3 is mounted on the well head beam 2.
A kind of pressurization sinking device for open caisson construction described in this example as shown in Figure 1.The device is set according to demand
It sets several to be evenly arranged around well head, sink mode uses the direct pushing tow well body of hydraulic oil pump piston rod, provides enough thrust
Well body is enabled to penetrate hard soil layer to smoothly sink.Every pressurizing device provides enough earth anchors by two ground anchor pegs
Power, counter-force when for balanced hydraulic oil pump pushing tow.Hydraulic device is mounted on the concrete well head beam being specially arranged, well head beam
It is poured using water-proof concrete, it can play the role of blocking surface water, correction well body；In addition, the hardness of its material
And overall stiffness guarantees the stabilization of pressurizing device in pressurization sinking watching, will not cause because of reasons such as Earth caves
Device displacement even tilts and collapses.
Before construction, planning and designing should be carried out to pressure sinking device quantity and position, and be accurately positioned the tree root on site
The position that lays out pile of stake 1.
The counter-force bracket 3 is fixed using two root piles 1, and the root pile 1 is using drilling secondary grouting perfusion
Stake, stake diameter are not more than 500mm, and injecting paste material uses concrete or cement mortar, first time 1~2MPa of mud jacking intensity, intensity 3
~5MPa.Pile body overall height arranges that steel reinforcement cage, fining twisted steel should effectively be welded with steel reinforcement cage, enters pile body length and is no less than
3 meters, the above length in reserve in ground is no less than 0.5 meter.
Before making well body main structure, 2.5~3 meters are extended out apart from slope excavation pit, slope angle on well body periphery
45 °~60 °, root pile must not be disturbed in digging process, then made well body blade foot, laid 50 millimeters thick foams on the outside of blade foot layer
Thin plate then pours the well head beam 2 between foundation pit side-wall and blade foot.After the completion of the well head beam 2 is constructed, with specific dissolution
Cystosepiment is dissolved in agent, separates blade foot layer with well head beam.
3 bottom beam of counter-force bracket is reserved with the matched mounting hole of fining twisted steel, and fining twisted steel specification uses
PSB830 32mm.The counter-force bracket 3 is manually accurately positioned by lifting cooperation, and fining twisted steel is made in decentralization process
Across bracket reserving installation hole.After the completion of lifting, the counter-force bracket 3 and finish rolling screw thread are carried out using mating nut or welding
The connected and fixed operation of steel.It successively carries out being installed until pressure sinking device used.
The hydraulic cylinder 4 can provide maximum 100t thrust, it and counter-force bracket 3 pass through flanged joint or welding, oil
Cylinder piston rod end is equipped with elastomeric pad, prevents sink well body from constantly causing concrete cracking to destroy because local stress is excessive；Often
Before secondary sink construction starts, well body concrete strength cannot be less than its 85% standard cube compression strength.Open caisson construction process
In, pressurizing device can measure verticality, the fall rate of well body by 4 piston rod stroke of hydraulic cylinder, then can lead to
It crosses and adjusts the output plus-pressure of hydraulic cylinder respectively to rectify a deviation, or the unified output plus-pressure for adjusting entire compression system
Carry out sinking control rate.
Claims (5)
1. a kind of pressurization sinking device for open caisson construction, it is characterised in that: including earth anchor root pile (1), well head beam (2),
Counter-force bracket (3), hydraulic cylinder (4) and well body (5)；
The well body (5) is set to by the stud sides of counter-force bracket (3), and the hydraulic cylinder (4) is inverted tail portion and is fixed on counter-force
Bracket, well body (5) top and the piston rod of hydraulic cylinder offset, and realize that pressurization is sunk；The bottom beam of the counter-force bracket (3) passes through
The earth anchor root pile (1) provides counter-force and is fixed, and is arranged on the well head beam (2), the earth anchor root pile
(1) it is connect with the counter-force bracket (3) by fining twisted steel or fashioned iron.
2. a kind of pressurization sinking device for open caisson construction as described in claim 1, it is characterised in that: the earth anchor tree
Pile (1) is long according to geological condition adjustment stake, to meet withdrawal resistance.
3. a kind of pressurization sinking device for open caisson construction as described in claim 1, it is characterised in that: the well head beam
(2) concreting is used, to form the mounting platform of the counter-force bracket (3), while the well head beam (2) is under open caisson
Play the role of correction in heavy direction.
4. a kind of pressurization sinking device for open caisson construction as described in claim 1, it is characterised in that: the counter-force branch
Frame (3) is welded to form by Steel section members such as column, bottom beam, diagonal brace, upper bracket, middle brackets, and column, bottom beam, diagonal brace are constituted always
The counter-force bracket of angle triangular structure, and reinforce fixing by upper bracket, middle bracket.
5. a kind of pressurization sinking device for open caisson construction as described in claim 1, it is characterised in that: the earth anchor tree
By fining twisted steel, perhaps fashioned iron connect fining twisted steel to pile (1) or fashioned iron protrudes into institute with the counter-force bracket (3)
Earth anchor root pile (1) certain length stated, and the steel reinforcement cage welding inside pile body, connector lead between the two with root pile (1)
Mechanical snap power is crossed to be connected and fixed with chemical adhesion；Fining twisted steel or fashioned iron pass through pre- on the counter-force bracket (3)
After staying mounting hole, it is connected and fixed using welding or nut；The counter-force bracket (3) is arranged on the well head beam (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820297239.3U CN208604615U (en) | 2018-03-02 | 2018-03-02 | A kind of pressurization sinking device for open caisson construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820297239.3U CN208604615U (en) | 2018-03-02 | 2018-03-02 | A kind of pressurization sinking device for open caisson construction |
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| Publication Number | Publication Date |
|---|---|
| CN208604615U true CN208604615U (en) | 2019-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820297239.3U Active CN208604615U (en) | 2018-03-02 | 2018-03-02 | A kind of pressurization sinking device for open caisson construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108316328A (en) * | 2018-03-02 | 2018-07-24 | 中铁上海工程局集团有限公司 | A kind of pressurization sinking device and its construction method for open caisson construction |
-
2018
- 2018-03-02 CN CN201820297239.3U patent/CN208604615U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108316328A (en) * | 2018-03-02 | 2018-07-24 | 中铁上海工程局集团有限公司 | A kind of pressurization sinking device and its construction method for open caisson construction |
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| GR01 | Patent grant | ||
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Address after: 200436, No. three, 278 Road, Jingan District, Shanghai Patentee after: SHANGHAI CIVIL ENGINEERING Co.,Ltd. OF CREC Patentee after: China Railway Municipal Environmental Construction Co.,Ltd. Address before: 200436, No. three, 278 Road, Jingan District, Shanghai Patentee before: SHANGHAI CIVIL ENGINEERING Co.,Ltd. OF CREC Patentee before: China Railway Shanghai Engineering Bureau Group Municipal Engineering Co.,Ltd. |