CN109826218A - A kind of open caisson end heavy stage hydraulic lifting deviation-rectifying system - Google Patents
A kind of open caisson end heavy stage hydraulic lifting deviation-rectifying system Download PDFInfo
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- CN109826218A CN109826218A CN201910226629.0A CN201910226629A CN109826218A CN 109826218 A CN109826218 A CN 109826218A CN 201910226629 A CN201910226629 A CN 201910226629A CN 109826218 A CN109826218 A CN 109826218A
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- open caisson
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Abstract
The invention discloses a kind of open caisson end heavy stage hydraulic lifting deviation-rectifying systems, mainly by well bore, bored concrete pile, steel lattice column, hydraulic jack, displacement sensor, force sensor, hydraulic oil pump, sense line, hydraulic oil pipe, steel plate for sealing water, dial framework, steel pipe frame, the part such as bracket forms, by way of by the way that bracket is arranged in open caisson bottom and to have the bored concrete pile of steel lattice column at the top of the construction of excavation pit bottom symmetrical, so that in open caisson, the heavy stage can use hydraulic jack to well bore progress deviation adjusting eventually, it can effectively solve the problem that and not carry out the super heavy equal series of problems of back cover construction generation open caisson in the heavy stage deviation inclination of soft layer open caisson construction end or for some reason long-term, and then improve construction quality, reduce the construction period, reduce construction cost.
Description
Technical field
The invention belongs to Open caisson construction technology fields, and in particular to a kind of open caisson end heavy stage hydraulic lifting deviation-rectifying system.
Background technique
Open caisson construction is the stack shell that opening armored concrete is first made on ground or melt pit, after reaching some strength,
In pit shaft layering cut the earth, muck haulage, as native face gradually decreases in well, open caisson stack shell overcomes and Tu Bi by its own gravity
Between frictional resistance, constantly sink and a kind of deep base in place or underground engineering construction technique.
The advantages of open caisson construction technique are as follows: can construct deeper underground engineering in narrow space, and to ring around
Border influences smaller；It can construct in geology, hydrologic condition complex area, and be not necessarily to complex mechanical equipment.Open caisson construction technique lacks
Point are as follows: construction technical requirement is high, and quality control is difficult；Super heavy phenomenon easily occurs for heavy stage well bore eventually, and correction difficulty is big.Open caisson is super heavy
Refer to that well sinking has been more than open caisson heavy absolute altitude eventually, and has been more than tolerance range.Since open caisson is from starting to sink to back cover
Before completion, entire work progress all in the unstable state of movement among, and motion-affecting factor is sufficiently complex, both
There are size, the weight, construction feature factor of open caisson itself, and with having the topography and geomorphology of external environment, engineering geology, the hydrology
Matter condition element, there are also the method and measure of construction operation, operational procedure, control means etc., usually will appear in open caisson construction super
Heavy phenomenon affects construction quality and uses function.
Summary of the invention
To solve the above problems, the present invention provides a kind of open caisson end heavy stage hydraulic lifting deviation-rectifying system, it can be effective
It solves in soft layer open caisson construction heavy stage deviation inclination or for some reason long-term does not carry out back cover construction to generate open caisson super heavy eventually
Equal series of problems.
The specific technical proposal of the invention is:
A kind of open caisson end heavy stage hydraulic lifting deviation-rectifying system, characterized in that construction procedure are as follows:
1) before well bore is prefabricated, first in four inside surface construction bored concrete piles of the borehole wall, control stake top absolute altitude to heavy bottom hole location eventually
Lower 0.5 meter, it is inserted into steel lattice column, wherein 2 meters, exposed 1 meter in steel lattice column insertion bored concrete pile；
2) it is segmented prefabricated open caisson, head section well bore inside bottom is arranged a cast-in-place bracket, wants to lower part bored concrete pile intensity satisfaction
It is excavated when asking, implements open caisson operation；
3) when well bore sinks down into nearly heavy absolute altitude eventually first by steel lattice column and pressure-bearing steel platform firm welding, bottom sealing position
It sets and welds steel plate for sealing water with steel lattice column handover position,
4) hydraulic system and sensor are installed, hydraulic jack is placed on the pressure-bearing platform at the top of steel lattice column, liquid
Pressure jack is connect by hydraulic oil pipe with hydraulic oil pump；Institute's displacement sensors are fixed on bracket by dial framework and steel pipe frame
Portion, the force sensor are arranged in hydraulic jack top side face；The hydraulic oil pump by sensing line and displacement sensor and by
Force snesor connection；
5) hydraulic system, displacement sensor and force sensor complete parameter is then arranged, when under well bore 1 in correction adjustment
When being sink to pre-set parameter, hydraulic system stops working, and system is in the steady state of disk, and in open caisson, heavy bottom position is poured eventually at this time
It builds bed course, assembling reinforcement, pour bottom concrete；
6) exposed steel lattice column, open caisson end heavy stage hydraulic lifting are finally cut off after bottom concrete intensity is met the requirements
Deviation-rectifying system work is completed.
Further, when the step 5) correction adjustment, if well bore need to rectify a deviation, the height difference of adjustment is more than hydraulic jack
When stroke, hydraulic jack can be unloaded, cut off part steel lattice column, pressure-bearing steel platform is soldered to again at the top of steel lattice column,
The operation of step 5) is carried out again.
Compared with prior art, the present invention can be by applying in open caisson bottom setting bracket and to excavation pit bottom symmetrical
The mode of bored concrete pile at the top of work with steel lattice column so that open caisson eventually the heavy stage can use hydraulic jack to well bore into
Row deviation adjusting can effectively solve the problem that heavy stage deviation tilts eventually or long-term is not sealed for some reason in soft layer open caisson construction
The super heavy equal series of problems of bottom application work generation open caisson, and then construction quality is improved, the construction period is reduced, construction cost is reduced.
Detailed description of the invention
Fig. 1 is a kind of open caisson of the present invention heavy stage hydraulic lifting deviation-rectifying system cross-section diagram eventually；
Fig. 2 is a kind of open caisson of the present invention heavy stage hydraulic lifting deviation-rectifying system top view eventually；
In figure: 1, well bore, 2, bored concrete pile, 3, steel lattice column, 4, hydraulic jack, 5, displacement sensor, 6, stress sensing
Device, 7, hydraulic oil pump, 8, sensing line, 9, hydraulic oil pipe, 10, steel plate for sealing water, 11, dial framework, 12, steel pipe frame, 13, bracket.
Specific embodiment
The present invention is described in further detail with embodiment with reference to the accompanying drawings of the specification.
Embodiment 1
As shown in Fig.1 and Fig.2, a kind of open caisson end heavy stage hydraulic lifting deviation-rectifying system, construction procedure are as follows:
1) before well bore 1 is prefabricated, first in four inside surface construction bored concrete piles 2 of the borehole wall, control stake top absolute altitude to whole open caisson bottom position
Lower 0.5 meter is set, steel lattice column 3 is inserted into, wherein steel lattice column 3 is inserted into bored concrete pile 22 meters, exposed 1 meter；
2) it is segmented prefabricated open caisson, a cast-in-place bracket 13 is arranged in head section 1 inside bottom of well bore, full to 2 intensity of lower part bored concrete pile
Foot is excavated when requiring, and implements open caisson operation；
3) when well bore 1 sinks down into nearly heavy absolute altitude eventually first by steel lattice column 3 and 14 firm welding of pressure-bearing steel platform, open caisson envelope
Bottom position and steel lattice column 3 join position and weld steel plate for sealing water 10；
4) hydraulic system and sensor are installed
Hydraulic system includes hydraulic jack 4 and hydraulic oil pump 7, and hydraulic jack 4 is placed on 3 top of steel lattice column
On pressure-bearing platform 14, hydraulic jack 4 is connect by hydraulic oil pipe 9 with hydraulic oil pump 7；Institute's displacement sensors 5 pass through dial framework
11 and steel pipe frame 12 be fixed on 13 top of bracket, force sensor 6 is arranged in 4 side of hydraulic jack；Hydraulic oil pump 7 passes through biography
Sense line 8 is connect with displacement sensor 5 and force sensor 6；
5) hydraulic system, 6 complete parameter of displacement sensor 5 and force sensor is then arranged, when well bore 1 in correction adjustment
When sinking down into pre-set parameter, hydraulic system stops working, and system is in the steady state of disk, at this time in open caisson end heavy bottom position
It pours bed course, assembling reinforcement, pour bottom concrete；
6) exposed steel lattice column 3, open caisson end heavy stage hydraulic top are finally cut off after bottom concrete intensity is met the requirements
Deviation-rectifying system work is risen to complete.
Embodiment 2
As shown in Figure 1 and Figure 2, a kind of open caisson end heavy stage hydraulic lifting deviation-rectifying system, construction procedure are as follows:
1) before well bore 1 is prefabricated, first in four inside surface construction bored concrete piles 2 of the borehole wall, control stake top absolute altitude to whole open caisson bottom position
Lower 0.5 meter is set, steel lattice column 3 is inserted into, wherein steel lattice column 3 is inserted into bored concrete pile 22 meters, exposed 1 meter；
2) it is segmented prefabricated open caisson, a cast-in-place bracket 13 is arranged in head section 1 inside bottom of well bore, full to 2 intensity of lower part bored concrete pile
Foot is excavated when requiring, and implements open caisson operation；
3) when well bore 1 sinks down into nearly heavy absolute altitude eventually first by steel lattice column 3 and 14 firm welding of pressure-bearing steel platform, open caisson envelope
Bottom position and steel lattice column 3 join position and weld steel plate for sealing water 10；
4) hydraulic system and sensor are installed
Hydraulic system includes hydraulic jack 4 and hydraulic oil pump 7, and hydraulic jack 4 is placed on 3 top of steel lattice column
On pressure-bearing platform 14, hydraulic jack 4 is connect by hydraulic oil pipe 9 with hydraulic oil pump 7；Institute's displacement sensors 5 pass through dial framework
11 and steel pipe frame 12 be fixed on 13 top of bracket, force sensor 6 is arranged in 4 side of hydraulic jack；Hydraulic oil pump 7 passes through biography
Sense line 8 is connect with displacement sensor 5 and force sensor 6；
5) correction adjustment can be by hydraulic jack when if well bore 1 need to rectify a deviation, the height difference of adjustment is more than 4 stroke of hydraulic jack
Top 4 is unloaded, and part steel lattice column 3 is cut off, and pressure-bearing steel platform 14 is soldered to 3 top of steel lattice column again.
Then setting hydraulic system, 6 complete parameter of displacement sensor 5 and force sensor, sets when well bore 1 sinks down into parameter
When definite value, hydraulic system stops working, and system be in the steady state of disk, sinks bottom position eventually in open caisson at this time and pours bed course, ties up
It wire-ties, pour bottom concrete；
6) exposed steel lattice column 3, open caisson end heavy stage hydraulic top are finally cut off after bottom concrete intensity is met the requirements
Deviation-rectifying system work is risen to complete.
The invention enables carry out deviation to well bore using hydraulic rectifying system in open caisson eventually heavy construction actual application
Adjustment is possibly realized, and meets the open caisson construction end heavy accuracy requirements under bad condition condition or soft layer geological condition.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (2)
1. a kind of open caisson end heavy stage hydraulic lifting deviation-rectifying system, characterized in that construction procedure are as follows:
1) before well bore (1) is prefabricated, first in four inside surface construction bored concrete piles (2) of the borehole wall, control stake top absolute altitude to whole open caisson bottom position
Lower 0.5 meter is set, is inserted into steel lattice column (3), wherein two meters, exposed one meter in steel lattice column (3) insertion bored concrete pile (2)；
2) it is segmented prefabricated open caisson, a cast-in-place bracket (13) is arranged in head section well bore (1) inside bottom, to lower part bored concrete pile (2) intensity
It is excavated when meeting the requirements, implements open caisson operation；
3) when well bore (1) sinks down into nearly heavy absolute altitude eventually first by steel lattice column (3) and pressure-bearing steel platform (14) firm welding, open caisson
Back cover position and steel lattice column (3) handover position welding steel plate for sealing water (10)；
4) hydraulic system and sensor, the pressure-bearing platform (14) hydraulic jack (4) being placed at the top of steel lattice column (3) are installed
On, hydraulic jack (4) is connect by hydraulic oil pipe (9) with hydraulic oil pump (7)；Institute's displacement sensors (5) pass through dial framework
(11) and steel pipe frame (12) is fixed on bracket (13) top, and the force sensor (6) is arranged in hydraulic jack (4) side；
The hydraulic oil pump (7) is connect by sensing line (8) with displacement sensor (5) and force sensor (6)；
5) correction adjustment is then arranged hydraulic system, displacement sensor (5) and force sensor (6) complete parameter, works as well bore
(1) when sinking down into pre-set parameter, hydraulic system stops working, and system is in the steady state of disk, sinks to the bottom portion eventually in open caisson at this time
Position pours bed course, assembling reinforcement, pours bottom concrete；
6) exposed steel lattice column (3) are finally cut off after bottom concrete intensity is met the requirements, open caisson end heavy stage hydraulic lifting
Deviation-rectifying system work is completed.
2. a kind of open caisson end heavy stage hydraulic lifting deviation-rectifying system according to claim 1, characterized in that the step
It 5), can be by hydraulic jack when if well bore (1) need to rectify a deviation, the height difference of adjustment is more than hydraulic jack (4) stroke when correction adjustment
(4) it unloads, cuts off part steel lattice column (3), pressure-bearing steel platform (14) is soldered to again at the top of steel lattice column (3), then is walked
Rapid operation 5).
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109610530A (en) * | 2018-12-14 | 2019-04-12 | 宝钢集团新疆八钢铁有限公司 | A kind of method of large equipment base correction |
| CN110541427A (en) * | 2019-09-05 | 2019-12-06 | 中交第二公路工程局有限公司 | Open caisson shaft deviation rectifying device and deviation rectifying method |
| CN110747876A (en) * | 2019-09-11 | 2020-02-04 | 中铁上海工程局集团有限公司 | Auxiliary device for sinking in open caisson construction and operation method thereof |
| CN113529771A (en) * | 2021-07-23 | 2021-10-22 | 湖北工业大学 | Method for blasting and excavating open caisson by using rock foundation of jack and constructing shaft |
| CN113737833A (en) * | 2021-09-09 | 2021-12-03 | 中建七局交通建设有限公司 | Open caisson construction formwork and construction method thereof |
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| JP2004156205A (en) * | 2002-11-01 | 2004-06-03 | Yamaha Kako Kensetsu Kk | Underground construction and construction method therefor |
| CN101418573A (en) * | 2008-01-24 | 2009-04-29 | 丁慈鑫 | Caisson structure and method for smoothly and accurately sinking caisson structure into earth surface |
| CN204112351U (en) * | 2014-07-22 | 2015-01-21 | 中国市政工程华北设计研究总院有限公司 | The sinking servicing unit of open caisson |
| CN108086340A (en) * | 2017-12-29 | 2018-05-29 | 上海建工二建集团有限公司 | Open caisson construction structure and its construction method |
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2019
- 2019-03-25 CN CN201910226629.0A patent/CN109826218A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004156205A (en) * | 2002-11-01 | 2004-06-03 | Yamaha Kako Kensetsu Kk | Underground construction and construction method therefor |
| CN101418573A (en) * | 2008-01-24 | 2009-04-29 | 丁慈鑫 | Caisson structure and method for smoothly and accurately sinking caisson structure into earth surface |
| CN204112351U (en) * | 2014-07-22 | 2015-01-21 | 中国市政工程华北设计研究总院有限公司 | The sinking servicing unit of open caisson |
| CN108086340A (en) * | 2017-12-29 | 2018-05-29 | 上海建工二建集团有限公司 | Open caisson construction structure and its construction method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109610530A (en) * | 2018-12-14 | 2019-04-12 | 宝钢集团新疆八钢铁有限公司 | A kind of method of large equipment base correction |
| CN110541427A (en) * | 2019-09-05 | 2019-12-06 | 中交第二公路工程局有限公司 | Open caisson shaft deviation rectifying device and deviation rectifying method |
| CN110747876A (en) * | 2019-09-11 | 2020-02-04 | 中铁上海工程局集团有限公司 | Auxiliary device for sinking in open caisson construction and operation method thereof |
| CN113529771A (en) * | 2021-07-23 | 2021-10-22 | 湖北工业大学 | Method for blasting and excavating open caisson by using rock foundation of jack and constructing shaft |
| CN113737833A (en) * | 2021-09-09 | 2021-12-03 | 中建七局交通建设有限公司 | Open caisson construction formwork and construction method thereof |
| CN113737833B (en) * | 2021-09-09 | 2022-09-09 | 中建七局交通建设有限公司 | Open caisson construction formwork and construction method thereof |
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Application publication date: 20190531 |