CN208379620U - A kind of quick sinking construction device of the forced open caisson of piled anchor - Google Patents
A kind of quick sinking construction device of the forced open caisson of piled anchor Download PDFInfo
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- CN208379620U CN208379620U CN201821000450.0U CN201821000450U CN208379620U CN 208379620 U CN208379620 U CN 208379620U CN 201821000450 U CN201821000450 U CN 201821000450U CN 208379620 U CN208379620 U CN 208379620U
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- open caisson
- caisson
- anchoring pile
- punching jack
- hole
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Abstract
The utility model discloses a kind of quick sinking construction devices of the forced open caisson of piled anchor, it is circumferentially spaced on the borehole wall of the open caisson to have several vertical through holes, it is characterized in that the constructing device includes anchoring pile, anchor cable and punching jack, the anchoring pile is embedded in formation counter-force earth anchor in the soil body immediately below the Sinking Well Design absolute altitude in advance, the punching jack is set to above the through-hole of the caisson wall, and the anchor cable is through the through-hole and its lower end is connected on the anchoring pile, the punching jack is run through in upper end and fixes through bolt-nut.The utility model has the advantages that: down force is provided using anchoring pile, anchor cable and punching jack composition constructing device for open caisson, it is not limited by place, open caisson suitable for various shapes, well sinking posture can be effectively controlled, and additional external force will not be generated to caisson wall, to keep well sinking process uniform force steady, open caisson is effectively avoided to occur tilting and dash forward to sink waiting unsafe conditions.
Description
Technical field
The utility model relates to Open caisson construction technology fields, and in particular to a kind of quick sinking of the forced open caisson of piled anchor is applied
Tooling is set.
Background technique
Open caisson is a kind of construction when building underground engineering and buried basis, with Modern Construction technology and construction
Mechanical development, open caisson have gradually become a kind of common pattern of buried underground structure building enclosure, and have economical rationality,
The advantages that structure is simple, construction quality easily guarantees is widely used in the engineerings such as underground structure, basis, pattern foundation pit supporting structure.
Well sinking relies primarily on itself weight and the borehole wall is overcome to sink down into and set with the resistance under the frictional resistance and blade foot of soil
Count absolute altitude.The selection of caisson sinking construction method depends on engineering ground size, hydrogeologic condition and Adjacent Buildings
The factors such as sensitivity.Under complex stratum condition or in large-scale well-sinking engineering, only relies on open caisson self weight and be difficult to overcome the borehole wall
With the resistance under the frictional resistance and blade foot of soil, it is therefore desirable to promote well sinking by sinking ancillary measure.
Ballast sinking is most common well sinking ancillary measure, but passes through preloading, connects and build the side that open caisson etc. is loaded directly into
Down force provided by formula is limited, often provides the active force for promoting well sinking in practical sinking well engineering by counter force system.
But the counter force system of current forced well sinking generally requires biggish construction site, and in work progress to surrounding enviroment and
Building has biggish adverse effect；And its structure is complicated, the transformation of open caisson construction process is frequent, it is difficult to it is fast to be suitable for large-scale well-sinking
The situation that speed is steadily constructed；In addition, mostly using pressure-bearing " bracket ", prefabricated pile etc. in such counter force system, caisson wall can be produced
Raw additional active force, is unfavorable for borehole wall stress.
104032764 A of patent CN discloses a kind of " forced open caisson counter force system ", in the production of open caisson merogenesis, sinks
When, every section open caisson is both needed to pour pressure-bearing " bracket ", when sinking down into default absolute altitude need to pressure-bearing " bracket " to the section open caisson top into
Row cuts the progress to guarantee well sinking subsequent handling, and process is tedious, and pressure-bearing " bracket " generates additionally caisson wall
Moment of flexure, be unfavorable for the structure stress of the borehole wall itself.
204112351 U of patent CN discloses a kind of " the sinking auxiliary device of open caisson ", using multiple prefabricated piles, very heavy
Top and bracket, uncontrollable spatial attitude is stable during which solves the problems, such as well sinking, but due to pressure-bearing
" bracket " can generate additional bending moment to caisson wall, be unfavorable for borehole wall stress, and the two rows of prefabricated piles of application, occupy construction field
Ground, it is more demanding to construction site.
Summary of the invention
The purpose of this utility model is to provide a kind of forced open caisson of piled anchor according in place of above-mentioned the deficiencies in the prior art
Quick sinking construction device, the pre-buried anchoring pile of the soil body is with forming counter-force by immediately below Sinking Well Design absolute altitude for the constructing device
Anchor connects anchoring pile using one end of anchor cable, and the other end is connected to the cylinder upper end of punching jack after caisson wall through-hole,
To provide stable down force for open caisson.
The utility model aim realization is completed by following technical scheme:
A kind of quick sinking construction device of the forced open caisson of piled anchor, it is circumferentially spaced on the borehole wall of the open caisson to have
Several vertical through holes, it is characterised in that the constructing device includes anchoring pile, anchor cable and punching jack, and the anchoring pile is embedded in institute in advance
It states formation counter-force earth anchor, the punching jack in the soil body immediately below Sinking Well Design absolute altitude and is set to the institute of the caisson wall
It states above through-hole, the anchor cable runs through the through-hole and its lower end is connected on the anchoring pile, upper end is very heavy through the punching
It pushes up and is fixed through bolt-nut.
The lower end of the anchor cable is connected and fixed on the anchoring pile centerline.
The anchoring pile center line, the anchor cable, the through hole center line and the punching jack center line are respectively positioned on
On same vertical line.
The through-hole distributing position on the installation position of the anchoring pile and the caisson wall corresponds.
It is embedded with round steel pipe in advance in the through-hole.
Reserved aperture is provided on the coxopodite lower well wall surface of the open caisson, the reserved tapping closure has concrete
Block.
The bolt-nut is tightened on the anchor cable, and branch peaks on the upper surface of the punching jack.
The utility model has the advantages that: (1) constructing device system structure simple, is made of anchoring pile, anchor cable, punching jack
Constructing device provides stable down force for open caisson, does not generate additional external force to caisson wall, well sinking appearance can be effectively controlled
State effectively prevents well sinking process and the rough sledding such as heavy that tilt and dash forward occurs to make well sinking process uniform and stable；
(2) without the auxiliary parts such as reaction beam, " bracket ", working procedure is simply continuous, and the construction of large-scale well-sinking can be accelerated
Its speed of application saves construction cost；(3) anchoring pile is located at immediately below the borehole wall, and construction area area is small, to periphery in work progress
The adverse effect of the generations such as environment and building is small；And can be used for irregular shape open caisson, the application for substantially increasing open caisson is empty
Between.
Detailed description of the invention
Fig. 1 is the quick sinking construction device top view of the forced open caisson of piled anchor in the utility model；
Fig. 2 is the construction schematic diagram of open caisson coxopodite in the utility model；
Fig. 3 is the construction schematic diagram of the second section open caisson in the utility model；
Fig. 4 is the construction schematic diagram of third section open caisson in the utility model；
Fig. 5 is the construction schematic diagram of Section of four open caisson in the utility model；
Fig. 6 is the floor map of cylinder-shaped open caisson in the utility model；
Fig. 7 is open caisson floor map in the shape of a " convex " in the utility model；
Fig. 8 is that rectangle combines the floor map constituted with arc in the utility model.
Specific embodiment
The feature of the utility model and other correlated characteristics are made further specifically by embodiment below in conjunction with attached drawing
It is bright, in order to the understanding of technical staff of the same trade:
Such as Fig. 1-8, label 1-7 is respectively as follows: open caisson 1, coxopodite 1a, first segment open caisson 1b, the second section open caisson 1c, the in figure
Three section open caisson 1d, anchoring pile 2, anchor cable 3, through-hole 4, punching jack 5, bolt-nut 6, the borehole wall reserve aperture 7.
Embodiment: as shown in figures 1-8, the present embodiment is filled more particularly to a kind of quick sinking construction of the forced open caisson of piled anchor
It sets, including anchoring pile 2, anchor cable 3 and punching jack 5, anchoring pile 2 is embedded in the soil body below 1 designed elevation of open caisson in advance and forms counter-force earth anchor,
Punching jack 5 is set to above 1 borehole wall of open caisson, and anchor cable 3 is connected to anchoring pile 2 through caisson wall, one end via through-hole 4, separately
One end is connected to 5 cylinder upper end of punching jack.The constructing device is used to provide stable down force for open caisson 1, and can control
Open caisson 1 declines posture, and working procedure is simple, the open caisson suitable for a variety of irregular shapes.
As shown in figures 1-8, open caisson 1 is multiple rows of hole open caisson that four wellholes are separated by cross internal partition wall in the present embodiment,
Open caisson top view is in sphere of movements for the elephants shape, and in the present embodiment, open caisson 1 is specifically by coxopodite 1a, first segment open caisson 1b, the from bottom to top
Composed by two section open caisson 1c, third section open caisson 1d；It has circumferentially been evenly spaced on and several has vertically run through on the borehole wall of open caisson 1
Through-hole 4 therein, it is preferable that round steel pipe is embedded in borehole wall through-hole 4 during pre-cast sink well, to provide for anchor cable 3
Connected pathways and the rigidity for keeping the borehole wall；It is embedded with more in advance with being used to form counter-force in the soil body immediately below 1 designed elevation of open caisson
The anchoring pile 2 of anchor, anchoring pile 2 lay the one-to-one relationship of should constituting with the distribution of through-hole 4 on open caisson 1, the positioning of anchoring pile 2 and hang down
Straight degree must be strictly controlled, to ensure that its stress is vertical；Punching jack 5, anchor are provided with right above the borehole wall through-hole 4 of open caisson 1
One end of rope 3 is connected and fixed on 2 centerline of anchoring pile, and the other end is finally solid via borehole wall through-hole 4, the punching jack 5 of open caisson 1
Surely it is connected to the cylinder upper end of punching jack 5, it is preferred that the connection type that anchor cable 3 is fixedly connected on cylinder upper end is nut
Anchoring, the i.e. upper end tab of anchor cable 3 point are tightened and to have a bolt-nut 6, and bolt-nut 6 is torqued-up to branch, and to peak at punching very heavy
The upper surface on top 5 adjusts open caisson 1 in the connection point of sinking watching stream line 3 and cylinder upper end to facilitate.
As shown in Figs. 1-5, in the present embodiment, 2 center line of anchoring pile, anchor cable 3, caisson wall through-hole 4 center line and wear
The center line of heart jack 5 is respectively positioned on same vertical line, and the power that the guarantee application of punching jack 5 acts on open caisson 1 is hung down always
Straight open caisson cross section, to efficiently control the sinking posture of open caisson.It is reserved in aperture 7 at the nearly blade foot of the coxopodite borehole wall of open caisson 1
Be placed with concrete block, soil block blocks through-hole during open caisson decline can be effectively prevented, avoid anchor cable 3 and borehole wall through-hole 4 by
To frictional force increase and make open caisson 1 sinking be obstructed, facilitate the later period cleaning through-hole 4 and recycling anchor cable 3.
As shown in Figure 2-5, open caisson is carried out using the quick sinking construction device of the forced open caisson of the piled anchor of the present embodiment to apply
Work the following steps are included:
(1) subsidence position and designed elevation of open caisson 1, the soil body below 1 designed elevation of open caisson are determined according to construction requirement
In pre- embedded anchoring pile 2 form counter-force earth anchor, and in the pre-buried anchor cable 3 of the centerline of anchoring pile 2；The positioning of accurate control anchoring pile 2 with
Verticality, it is ensured that 2 stress of anchoring pile is always along the vertical direction.
(2) the coxopodite 1a of prefabricated open caisson 1 at the construction field (site), and along the pre-buried circular steel of borehole wall vertical direction in prefabrication process
Pipe forms several through-holes 4 for being evenly distributed on the borehole wall and running through 1 borehole wall of open caisson, guarantee while providing connected pathways for anchor cable 3
Borehole wall rigidity, it should be noted that laying for anchoring pile 2 should constitute one-to-one relationship with the distribution of through-hole 4 on open caisson 1；Together
When reserved aperture 7, and fill concrete block are opened up at the nearly blade foot of coxopodite 1a, facilitate the later period cleaning through-hole 4 and recycling anchor cable
3。
(3) after the intensity of coxopodite 1a reaches requirement, punching jack 5 is fixedly installed in the surface of borehole wall through-hole 4,
Anchor cable 3 pre-buried in anchoring pile 2 is run through into caisson wall via through-hole 4, and is consolidated after passing through punching jack 5 using bolt-nut 6
It is scheduled on the cylinder upper end of punching jack 5；Strictly ensure the center line of anchoring pile 2, anchor cable 3, caisson wall through-hole 4 center line with
And the center line of punching jack 5 is respectively positioned on same vertical line, guarantees that stress is always straight down when coxopodite 1a sinks, it is ensured that
The posture that coxopodite 1a sinks does not generate deviation.
(4) the pushing construction of the coxopodite 1a of open caisson 1 is carried out:
(4.1) before sink, the height difference and gradient of coxopodite 1a are measured, each punching thousand is finely tuned according to measurement result
The pressure size on jin top 5, rectifies a deviation to the sinking posture of coxopodite 1a.
(4.2) when sink, starting punching jack 5 stretches out its oil cylinder upwards to withstand bolt-nut 6, tightly due to anchor cable 3
It is fixed at bolt-nut 6, therefore anchor cable 3 is moved upwards the pulling force of generation by the oil cylinder of punching jack 5, and be embedded under open caisson
Anchoring pile 2 immediately below heavy designed elevation in the soil body then bears the upward pulling force of the generation of anchor cable 3, so that punching jack 5 be made to produce
Raw downward pressure passes to the borehole wall of the open caisson 1 closed on by its own, and coxopodite 1a is promoted to sink.
(4.3) after coxopodite 1a sinks an oil cylinder stroke, the oil cylinder of punching jack 5 is retracted, and it will be fixed on
The bolt-nut 6 of upper end repeats the sink operation of step (4.2), until coxopodite along the distance of 3 one oil cylinder stroke of backspin of anchor cable
1a sinks down into designed elevation.
(5) punching jack 5 is removed, and sprays water or wind in the round steel pipe into caisson wall through-hole 4, removes bottom
Save the satholith accumulated in through-hole 4 in 1a sinking watching；Pass through the reserved aperture 7 at the nearly blade foot of the coxopodite 1a borehole wall after cleaning out
Into the round steel pipe at blade foot, perfusion mortar is sealed, and water and soil is avoided to flow back.
(6) spreading anchor cable 2 connects high open caisson 1, that is, continues to pour the first segment open caisson 1b on coxopodite 1a, similarly exist
Pre-buried round steel pipe forms the through-hole 4 for running through the borehole wall in the borehole wall of first segment open caisson 1b, repeats step (3) and (4), by first segment
Open caisson 1b sinking construction device is installed in place；And so on, successively the second section open caisson 1c, third section open caisson 1d are carried out sinking to applying
Work, until the total height of open caisson 1 reaches designed elevation.
(7) punching jack 5 is removed, the concrete block reserved in aperture 7 at the nearly blade foot of 1 borehole wall of open caisson is taken out, by pre-
Stay aperture 7 that the anchor cable 3 in through-hole 4 is cut and recycled, then the fill concrete block into reserved aperture 7；It is logical to the borehole wall of open caisson 1
Slip casting is backfilled in round steel pipe in hole 4, blocks through-hole 4 to guarantee the borehole wall compactness of open caisson 1, to improve the knot of open caisson 1
Structure intensity.
It should be pointed out that the starting of each punching jack 5 is synchronous progress in step (4.2), to ensure open caisson 1
Sinking watching do not generate deviation.If situations such as finding the run-off the straight of open caisson 1 in the arbitrary process that open caisson 1 sinks, repeats
Step (4.1) timely rectifies a deviation to the posture of open caisson 1.
As shown in Fig. 1, Fig. 6-8, this forced open caisson construction apparatus structure can be used for the open caisson of a variety of irregular shapes, tool
Body can be any one in sphere of movements for the elephants shape, cylindrical shape, "convex" shaped, rectangle and arc combined shaped.
The utility model has the following beneficial effects: (1) apparatus structure composition is simple, by anchoring pile, anchor cable, punching jack three
Combination can provide down force for open caisson, and without the auxiliary parts such as reaction beam, " bracket ", construction area area is small, to applying
Work scene neighboring buildings influence small；(2) device is easy to use, and working procedure is simply continuous, short construction period；It (3) can be to open caisson
Sinking posture is adjusted, and down force is stablized, and effectively avoids the rough sledding such as heavy that tilt and dash forward occur during well sinking；
(4) device versatility with higher can be used for a variety of irregular open caissons, substantially increase the application space of open caisson.
Claims (7)
1. a kind of quick sinking construction device of the forced open caisson of piled anchor, if circumferentially spaced on the borehole wall of the open caisson have
Dry vertical through holes, it is characterised in that the constructing device includes anchoring pile, anchor cable and punching jack, and the anchoring pile is embedded in described in advance
Counter-force earth anchor is formed in the soil body immediately below Sinking Well Design absolute altitude, the punching jack is set to the described of the caisson wall
Above through-hole, the anchor cable is through the through-hole and its lower end is connected on the anchoring pile, upper end is through the punching jack
And it is fixed through bolt-nut.
2. a kind of quick sinking construction device of the forced open caisson of piled anchor according to claim 1, it is characterised in that described
The lower end of anchor cable is connected and fixed on the anchoring pile centerline.
3. a kind of quick sinking construction device of the forced open caisson of piled anchor according to claim 1, it is characterised in that described
Anchoring pile center line, the anchor cable, the through hole center line and the punching jack center line are respectively positioned on same vertical line.
4. a kind of quick sinking construction device of the forced open caisson of piled anchor according to claim 1, it is characterised in that described
The through-hole distributing position on the installation position of anchoring pile and the caisson wall corresponds.
5. a kind of quick sinking construction device of the forced open caisson of piled anchor according to claim 1, it is characterised in that described
Round steel pipe is embedded in through-hole in advance.
6. a kind of quick sinking construction device of the forced open caisson of piled anchor according to claim 1, it is characterised in that described
Reserved aperture is provided on the coxopodite lower well wall surface of open caisson, the reserved tapping closure has concrete block.
7. a kind of quick sinking construction device of the forced open caisson of piled anchor according to claim 1, it is characterised in that described
Bolt-nut is tightened on the anchor cable, and branch peaks on the upper surface of the punching jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821000450.0U CN208379620U (en) | 2018-06-27 | 2018-06-27 | A kind of quick sinking construction device of the forced open caisson of piled anchor |
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| CN201821000450.0U CN208379620U (en) | 2018-06-27 | 2018-06-27 | A kind of quick sinking construction device of the forced open caisson of piled anchor |
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| CN208379620U true CN208379620U (en) | 2019-01-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487281A (en) * | 2018-06-27 | 2018-09-04 | 上海城建市政工程（集团）有限公司 | A kind of quick sinking construction device of the forced open caisson of piled anchor |
-
2018
- 2018-06-27 CN CN201821000450.0U patent/CN208379620U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487281A (en) * | 2018-06-27 | 2018-09-04 | 上海城建市政工程（集团）有限公司 | A kind of quick sinking construction device of the forced open caisson of piled anchor |
| CN108487281B (en) * | 2018-06-27 | 2020-07-03 | 上海城建市政工程（集团）有限公司 | Quick sinking construction device of pile anchor press-in type open caisson |
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