CN208379619U - A kind of quick sinking construction device of counter-force static pressure type open caisson - Google Patents
A kind of quick sinking construction device of counter-force static pressure type open caisson Download PDFInfo
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- CN208379619U CN208379619U CN201821000419.7U CN201821000419U CN208379619U CN 208379619 U CN208379619 U CN 208379619U CN 201821000419 U CN201821000419 U CN 201821000419U CN 208379619 U CN208379619 U CN 208379619U
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- open caisson
- sinking
- punching jack
- crossbeam
- pull
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Abstract
The utility model discloses a kind of quick sinking construction devices of counter-force static pressure type open caisson, it is characterized in that the constructing device includes reaction frame, anchor cable, sinking punching jack and pull-up punching jack, the reaction frame top has several crossbeams being located above the open caisson, the sinking punching jack is set between the borehole wall of the open caisson and the crossbeam, the pull-up punching jack is set to above the preformed hole of the crossbeam, in the pre-buried borehole wall for being anchored in the open caisson in the lower end of the anchor cable, upper end sequentially passes through the sinking punching jack, the preformed hole of the crossbeam and the pull-up punching jack are simultaneously fixed on pull-up punching jack upper end.The utility model has the advantages that: upper pulling force and down force are provided using anchor pile beam reaction frame, anchor cable and punching jack composition constructing device for open caisson, well sinking speed and sinking posture can be effectively controlled, well sinking process is effectively avoided the problems such as heavy that tilts and dash forward occur.
Description
Technical field
The utility model relates to Open caisson construction technology fields, and in particular to a kind of quick sinking of counter-force static pressure type open caisson 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 current counter-force static pressure type well sinking counter force system generally requires biggish construction site, to surrounding enviroment in work progress
There is biggish adverse effect with building；Due to complex geologic conditions, well sinking speed and sinking posture are difficult to accurately control,
Lead to tiltedly heavy, heavy appearance of dashing forward；In addition its structure is complicated, and the transformation of open caisson construction process is frequent, it is difficult to be suitable for large size
The situation of open caisson quick and stable construction；In addition, mostly using pressure-bearing " bracket " etc. in such counter force system, caisson wall can be generated
Additional active force is unfavorable for borehole wall stress.
Summary of the invention
The purpose of this utility model is to provide a kind of counter-force static pressure type open caisson according in place of above-mentioned the deficiencies in the prior art
Quick sinking construction device, the constructing device open caisson periphery be arranged reaction frame, by making anchor cable upper end pre-buried in open caisson
Preformed hole on crossbeam and pull-up punching jack simultaneously anchor, pull system in composition, and by between coxopodite and crossbeam
Sinking punching jack is set, lower sinking system is constituted；The sinking that open caisson coxopodite is realized using lower sinking system, it is real using upper pull system
Speed control and gesture stability during existing well sinking.
The utility model aim realization is completed by following technical scheme:
A kind of quick sinking construction device of counter-force static pressure type open caisson, it is characterised in that the constructing device includes counter-force
Frame, anchor cable, sinking punching jack and pull-up punching jack, the reaction frame top, which has, to be located above the open caisson
Crossbeam, the sinking punching jack are set between the borehole wall of the open caisson and the crossbeam, the pull-up punching jack
It is set to above the preformed hole of the crossbeam, in the pre-buried borehole wall for being anchored in the open caisson in the lower end of the anchor cable, upper end is successively
Through the sinking punching jack, the preformed hole of the crossbeam and the pull-up punching jack and it is fixed on the pull-up
Punching jack upper end.
The anchor cable center line, the sinking punching jack center line, the reserved centerline hole of the crossbeam and institute
Pull-up punching jack center line is stated to be located on same vertical axis.
One bolt-nut of anchor cable upper end is tightened in pull-up punching jack upper end.
Each edge of the borehole wall of the open caisson be respectively arranged with one group described in reaction frame, the reaction frame be in " Π " type, packet
Include the anchoring pile in the pre- borehole wall corner soil at both sides for being embedded in the open caisson, the column and two being fixedly installed in above the anchoring pile
Fixed frame is held to be set to the crossbeam on the column.
The overlapping positions of the crossbeam and the caisson wall offer preformed hole, the preformed hole and the caisson wall
On the anchor cable center line correspond.
It is in detachable connection between the both ends of the crossbeam and the column.
The utility model has the advantages that: constructing device system structure is simple, by anchor pile beam reaction frame, anchor cable and punching
Jack composition constructing device provides stable down force and upper pulling force for open caisson, does not generate additional external force to caisson wall, can
Effectively control well sinking speed and sinking posture effectively prevent well sinking to keep well sinking process at the uniform velocity steady
There are the rough sledding such as heavy that tilt and dash forward in process；Working procedure is simply continuous, can accelerate its construction for the construction of large-scale well-sinking
Speed saves construction cost.
Detailed description of the invention
Fig. 1 is counter-force static pressure type caisson sinking construction structure schematic top plan view in the utility model；
Fig. 2 is the schematic diagram of construction open caisson coxopodite in the utility model；
Fig. 3 is the schematic diagram of the second section open caisson of constructing in the utility model；
Fig. 4 is the schematic diagram of construction third section open caisson 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:
Picture 1-4,1-8 is marked to be respectively as follows: open caisson 1, coxopodite 1a, the second section open caisson 1b, third section open caisson 1c, anchor cable in figure
2, anchoring pile 3, column 4, crossbeam 5, sinking punching jack 6, pull-up punching jack 7, bolt-nut 8.
Embodiment: as shown in Figs 1-4, the present embodiment is specifically related to a kind of counter-force static pressure type caisson sinking construction device, should
Constructing device includes reaction frame, anchor cable 2, sinking punching jack 6 and pull-up punching jack 7, specifically, in 1 well of open caisson
Four edges of wall, which respectively correspond, is provided with one group of reaction frame, and reaction frame is in " Π " type, and the upper beam of reaction frame is crossbeam 5,
The overlapping position of crossbeam 5 and 1 borehole wall of open caisson is respectively arranged with preformed hole；Sinking punching jack 6 is set to 1 borehole wall upper surface of open caisson
Between crossbeam 5, to constitute lower sinking system；Pull-up punching jack 7 is correspondingly arranged at the preformed hole of crossbeam 5, anchor cable 2
In the pre-buried borehole wall for being anchored in open caisson 1 in lower end, the preformed hole and pull-up punching jack 7 that upper end then sequentially passes through crossbeam 5 are simultaneously
It is fixed through bolt-nut 8, to constitute upper pull system；Upper pull system above-mentioned and lower sinking system be open caisson 1 provide upper pulling force and
Down force avoids prominent heavy or inclination to keep well sinking process steadily controllable.
As shown in Figs 1-4, reaction frame is in " Π " type, and the anchoring pile 3 including 1 borehole wall corner two sides of open caisson are arranged in, anchoring pile 3 is in advance
It is embedded in the soil body, is fixedly installed with column 4 in the top of anchoring pile 3, the both ends of crossbeam 5 are detachable to be set up on column 4, is led to
It crosses using detachable connection consequently facilitating adjusting the mounting height of crossbeam 5 in sinking watching.It is opened in reserved on crossbeam 5
Hole on 1 borehole wall of open caisson the pre-buried position of anchor cable 2 correspond, so as to make anchor cable 2,6 center line of sinking punching jack,
Crossbeam 5 reserves centerline hole and pull-up 7 center line of punching jack is located on same vertical line, makes the sinking watching of open caisson 1
Stress on vertical line, avoids the rough sledding such as open caisson run-off the straight always.
As shown in Figs 1-4, the working method of the quick sinking construction device of the present embodiment counter-force static pressure type open caisson is specifically wrapped
Include following steps:
(1) determine that the subsidence position and designed elevation of open caisson 1, open caisson 1 herein refer to one according to construction requirement
It is whole, that is, it include coxopodite 1a, the second section open caisson 1b and third section open caisson 1c；It is pre-buried in 1 designed elevation surrounding soil of open caisson
If anchoring pile 3 forms counter-force earth anchor, and is fixedly mounted column 4 on anchoring pile 3, anchoring pile 3 is it is ensured that have enough length deeply soil
Body is to obtain enough frictional resistances, and the upper surface of anchoring pile 3 is slightly higher for ground；It is fixed between two neighboring column 4 to set up
Crossbeam 5, and two preformed holes are opened up on crossbeam 5, anchor pile beam reaction frame is consequently formed.In the present embodiment, as shown in Figure 1,
Each corner two sides of 1 borehole wall of open caisson are respectively arranged with anchoring pile 3, and are one group with the anchoring pile of corner two sides 3 and are used to support crossbeam 5
Both ends, therefore, the quantity of crossbeam 5 are four, and every crossbeam 5 is respectively positioned on the top of open caisson 1, and crossbeam 5 in the plane with open caisson 1
Preformed hole is offered at the position that the borehole wall coincides, i.e. the preformed hole surface that is opened in 1 borehole wall of open caisson, in order to subsequent anchor cable
3 can run through crossbeam 5 through preformed hole.
(2) the coxopodite 1a of open caisson 1 is poured at the construction field (site), and along the pre-buried more anchors of borehole wall vertical direction in casting process
Rope 2 and anchor cable 2 stretch out in the borehole wall of coxopodite 1a, it should be noted that the installation position of anchor cable 2 and the preformed hole point on crossbeam 5
Cloth position is in one-to-one relationship.
(3) after the maintenance of the coxopodite 1a wall strength of open caisson 1 reaches requirement, sinking punching jack 6 is installed on anchor cable 2
The surface of place borehole wall position, then punching of sinking a thousand pieces of gold top 6 and reaction frame form lower sinking system；Punching jack 7 will be pulled up
Be installed on right above the preformed hole of crossbeam 5,2 upper end of anchor cable stretch out borehole wall portion via sinking punching jack 6, run through crossbeam 5
Preformed hole and pull-up punching jack 7, finally with bolt-nut 8 be fixed on pull-up 7 cylinder upper end of punching jack, then on
It pulls through heart jack 7 and reaction frame forms pull system.Strictly ensure that anchor cable 2,6 center line of sinking punching jack, crossbeam 5 are pre-
Box out center line and pull-up 7 center line of punching jack be located on same vertical line, make the sinking watching stress of open caisson 1 always
On vertical line, the rough sledding such as open caisson run-off the straight are avoided.
(4) open caisson pushes construction:
(4.1) before sink, the height difference and gradient of coxopodite 1a are measured, worn according to each sinking of measurement result fine tuning
The pressure size of heart jack 6 rectifies a deviation to the sinking posture of coxopodite 1a head section.
(4.2) when sink, the bolt-nut 8 of 7 cylinder upper end of pull-up punching jack first on release crossbeam 5 makes
Pull system is in off working state, does not influence the sinking construction of coxopodite 1a.Starting sinking punching jack 6 stretches its oil cylinder upwards
Crossbeam 5 is withstood out, since crossbeam 5 is fixed on column 4, the reaction force that sinking punching jack 6 is generated by crossbeam 5, and
The reaction force is transferred to the caisson wall closed on by itself, coxopodite 1a is promoted to sink.
(4.3) after the coxopodite 1a of open caisson 1 sinks an oil cylinder stroke, the oil cylinder of sinking punching jack 5 is retracted, and
It will be fixed on the distance of 5 one oil cylinder stroke of backspin of the crossbeam on column 4, the sink operation in step (4.2) is repeated, the bottom of until
Section 1a sinks down into designed elevation.
(5) sinking punching jack 6 is removed, crossbeam 5 is moved up and is fixed, anchor cable 2 is anchored in pull-up using bolt-nut 8
7 cylinder upper end of punching jack opens upper pull system, upward pulling force is provided by anchor cable 2, fixes 1 position of open caisson.
(6) unearthed operation carried out according to construction requirement, pour the second section open caisson 1b, due to the back open caisson well that is unearthed in open caisson 1
The self weight that frictional resistance suffered by wall reduces, pours the second section open caisson 1b back open caisson 1 increases, and open caisson 1 will persistently sink, at this time anchor
Rope 2 then provides stable upper pulling force for open caisson 1, and counter-force is acted on reaction frame by pulling up punching jack 7, avoids
Open caisson is prominent heavy and effectively controls the subsidence velocity of open caisson.Continue to pour and by this step sinking third section open caisson 1c, until open caisson 1
Total height reach designed elevation.
(7) after open caisson 1 is unearthed and reaches stable, bolt-nut 8 is unclamped, removes sinking punching jack 6, pull-up punching thousand
Jin top 7, column 4 and crossbeam 5 etc., cut anchor cable extra above 1 borehole wall of open caisson, and the sinking work of open caisson 1 is completed.
It should be pointed out that the starting of each sinking punching jack 6 is synchronous progress in step (4.2), to ensure
The sinking posture of open caisson 1 does not generate inclination.Open caisson 1 sink arbitrary process in, monitor in real time open caisson 1 subsidence velocity and
Sinking posture: if the subsidence velocity of open caisson 1 is too fast, stopping sinking and starting upper pull system, controls the lower settling velocity of open caisson 1 in time
Degree；If the sinking posture run-off the straight of open caisson 1, repeatable step (4.1) timely entangle the sinking posture of open caisson 1
Partially.
The utility model has the following beneficial effects: apparatus structure composition is simple, by anchor pile beam reaction frame, anchor cable and punching
Jack composition constructing device provides stable down force and upper pulling force for open caisson, will not generate additional external force to caisson wall,
Well sinking speed and sinking posture can be effectively controlled, to keep well sinking process at the uniform velocity steady, effectively prevent under open caisson
There are the rough sledding such as heavy that tilt and dash forward in heavy process；Simple continuous, the repeatable operation of working procedure, the construction for large-scale well-sinking
It can accelerate its speed of application, save construction cost.
Claims (6)
1. a kind of quick sinking construction device of counter-force static pressure type open caisson, it is characterised in that the constructing device include reaction frame,
Anchor cable, sinking punching jack and pull-up punching jack, the reaction frame top have the cross being located above the open caisson
Beam, the sinking punching jack are set between the borehole wall of the open caisson and the crossbeam, and the pull-up punching jack is set
It is placed in above the preformed hole of the crossbeam, in the pre-buried borehole wall for being anchored in the open caisson in the lower end of the anchor cable, upper end is successively passed through
It wears the sinking punching jack, the preformed hole of the crossbeam and the pull-up punching jack and is fixed on described and pull through
Heart jack upper end.
2. a kind of quick sinking construction device of counter-force static pressure type open caisson according to claim 1, it is characterised in that described
Anchor cable center line, the sinking punching jack center line, the reserved centerline hole of the crossbeam and the pull-up punching thousand
Jin top center line is located on same vertical axis.
3. a kind of quick sinking construction device of counter-force static pressure type open caisson according to claim 1, it is characterised in that described
One bolt-nut of anchor cable upper end is tightened in pull-up punching jack upper end.
4. a kind of quick sinking construction device of counter-force static pressure type open caisson according to claim 1, it is characterised in that described
Each edge of the borehole wall of open caisson be respectively arranged with one group described in reaction frame, the reaction frame is in " Π " type, including is embedded in advance described
Anchoring pile in the borehole wall corner soil at both sides of open caisson, the column being fixedly installed in above the anchoring pile and both ends fixed frame are set to
Crossbeam on the column.
5. a kind of quick sinking construction device of counter-force static pressure type open caisson according to claim 4, it is characterised in that described
The overlapping positions of crossbeam and the caisson wall offer preformed hole, the anchor cable on the preformed hole and the caisson wall
Center line corresponds.
6. a kind of quick sinking construction device of counter-force static pressure type open caisson according to claim 4, it is characterised in that described
It is in detachable connection between the both ends of crossbeam and the column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821000419.7U CN208379619U (en) | 2018-06-27 | 2018-06-27 | A kind of quick sinking construction device of counter-force static pressure type open caisson |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821000419.7U CN208379619U (en) | 2018-06-27 | 2018-06-27 | A kind of quick sinking construction device of counter-force static pressure type open caisson |
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| CN208379619U true CN208379619U (en) | 2019-01-15 |
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| CN201821000419.7U Active CN208379619U (en) | 2018-06-27 | 2018-06-27 | A kind of quick sinking construction device of counter-force static pressure type open caisson |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487282A (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 counter-force static pressure type open caisson |
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2018
- 2018-06-27 CN CN201821000419.7U patent/CN208379619U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487282A (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 counter-force static pressure type open caisson |
| CN108487282B (en) * | 2018-06-27 | 2024-01-26 | 上海城建市政工程（集团）有限公司 | Rapid sinking construction device of counter-force static pressure type open caisson |
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