CN108487285A - No-dig technique or drilling immersed tube, open caisson or Caisson method - Google Patents
No-dig technique or drilling immersed tube, open caisson or Caisson method Download PDFInfo
- Publication number
- CN108487285A CN108487285A CN201810311730.1A CN201810311730A CN108487285A CN 108487285 A CN108487285 A CN 108487285A CN 201810311730 A CN201810311730 A CN 201810311730A CN 108487285 A CN108487285 A CN 108487285A
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- Prior art keywords
- high pressure
- caisson
- injection pipe
- pressure water
- water injection
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
- E02D23/08—Lowering or sinking caissons
- E02D23/12—Inclined lowering
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/063—Tunnels submerged into, or built in, open water
- E02D29/07—Tunnels or shuttering therefor preconstructed as a whole or continuously made, and moved into place on the water-bed, e.g. into a preformed trench
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of immersed tube, open caisson or caisson construction technology methods.Immersed tube, open caisson or the caisson of the present invention is made of several sinking sections, it is designed with the outlet of high pressure water injection pipe and high pressure water injection pipe side spout on each sinking section, high pressure water injection pipe is connected up in high-pressure injection pump, start high-pressure injection pump, bottom solum is washed open, the section that sinks sinks under the effect of gravity, after each sinking section sinks to designated position, the upper section of connection sinks to saving, and aforesaid operations is repeated, until integral construction depth reaches requirement.The construction effect that the present invention may be implemented the rapid construction of the engineering fields such as bridge, bridges and culverts, diversion works, water engineering, reduce quantities, save engineering land used.Solve the needs of problems of some marine parks or aquarium lot of pure seawater.
Description
Technical field
The present invention relates to the technical fields such as bridge, bridges and culverts, diversion works, water engineering.
Background technology
Currently, immersed tube, open caisson or Caisson are widely used in the necks such as bridge, bridges and culverts, diversion works, water engineering
Domain, however some cannot the upper construction area excavated in large area, how rapid construction, reduce quantities and save engineering
Land used is always a technical barrier.
If by reconnoitring engineering geology, hydrological geological conditions, cannot carry out Ground slot operation region,
Take no-dig technique or drilling immersed tube, open caisson or Caisson method, can reduce during immersed tube, open caisson or caisson sinking with soil
The frictional resistance of earth and the counter-force of cutting shoe can effectively realize rapid construction, reduce quantities, easy for construction and saving engineering
The construction effect of land used.
Invention content
Technical problem solved by the invention is to provide a kind of immersed tube, open caisson or caisson construction technology method, is opened using non-
The form of construction work dug or crept into realizes quickly applying for immersed tube in bridge, bridges and culverts, diversion works, water engineering, open caisson or caisson
Work.
The technical solution adopted by the present invention is, no-dig technique or drilling immersed tube, open caisson or Caisson method, including following applies
Work step is rapid：
One, prefabricated sinking section, immersed tube, open caisson or caisson are made of at least one sinking section, and most next stage sinks to saving bottom
Equipped with cutting edge, the section inner wall that sinks is equipped with high pressure water injection pipe, and high pressure water injection pipe water outlet is located at the bottom of most next stage sinking section
Cutting edge at, the water flow jet direction of high pressure water injection pipe water outlet straight down, high pressure water injection pipe upwards with high-pressure injection pump phase
Even；
Two, construction area is selected, most next stage, which is sunk to saving, to be placed on stratum；
Three, high-pressure injection pump is connected with high pressure water injection pipe, starts high-pressure injection pump, and high pressure water flow saves bottom cutting edge from sinking
The high pressure water injection pipe water outlet at place sprays, and the soil layer of lower section is washed open, and soil layer sinks to saving continuous under the effect of gravity after being rushed to open
Sink, while the surflaes to sink in section being removed；
Four, it after most next stage sinks section sinking a distance, slings upper level and sinks to saving, be placed on most next stage sinking section
Top and interconnection, by two sink section between high pressure water injection pipes be connected；
Five, the operation of step 3 is repeated, until having connected sinking section sinks to designated position；
Six, when construction depth is inadequate, the operation Step 3: step 4 is repeated, after construction depth reaches requirement, is terminated
Construction.
Sink section side wall on be additionally provided with opening towards outside high pressure water injection pipe side spout, high pressure water injection pipe water outlet and
High pressure water injection pipe side spout is connected with high pressure water injection pipe.
The water flow jet direction of high pressure water injection pipe side spout is towards oblique upper.
It is bolted between two neighboring sinking section.
High pressure water injection pipe is at least twice.
High-pressure injection pump connects an at least high pressure water injection pipe.
The beneficial effects of the invention are as follows a kind of advanced no-dig technique of offer or immersed tube, open caisson or Caisson method are crept into,
It realizes the rapid construction of the engineering fields such as bridge, bridges and culverts, diversion works, water engineering, reduces quantities, saves engineering land used
Construction effect.
Description of the drawings
Fig. 1 is the filtering seepage well sectional view of the present invention.
Fig. 2 be Fig. 1 in along the sectional view of A-A.
Fig. 3 is the structural schematic diagram of most next stage walling crib lower end cutting edge.
Fig. 4 is caisson structure sectional view.
In figure label for：1- control rooms；2- casings；3- seawater delivery pipes；4- ring flanges connect；5- highstrenghtpistons divulge information
Pipe block；6- buoys；7- high-water marks；8- vent hoses；9- subtidal lines；10- working drawing review platforms；Walling crib on the inside of 11-；12- mistakes
Filtering layer；Walling crib on the outside of 13-；14- immersible pumps；15- high pressure water injection pipes；16- high pressure water injection pipes side spout；17- high pressure water injection pipes go out
The mouth of a river；18- open caissons；19- cable protection pipes；20- high pressure water injection pipe water outlets；21- steel cutting edges.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings.
Immersed tube, open caisson or the caisson of the present invention has several sections that sink to be connected up and down and constitute.The section that sinks is mutual up and down
Connect and compose open caisson, immersed tube, caisson or the similar constructing structure to sink using dead weight.It is each to sink to saving if it is open caisson
It is exactly a walling crib, it is exactly one section of immersed tube or one section of caisson that if it is immersed tube, either Caisson, which each sinks to saving, and construction is former
Reason and often save the interconnection structure of immersed tube or caisson with it is following identical.
By taking open caisson as an example, open caisson bottom uses steel Cutting Edge Design, can reduce bottom residual soil counter-force, such as Fig. 2 at steel cutting edge
It is shown.It is steel plate outside the borehole wall, inside is concrete.As Figure 1 and Figure 4, high pressure water injection pipe, steel cutting edge are fixed in the borehole wall
Bottom has high pressure water injection pipe water outlet 20, open caisson lateral wall to be equipped with high pressure water injection pipe side spout 16, high pressure water injection pipe water outlet 20
It is connected with high pressure water injection pipe with high pressure water injection pipe side spout 16.
Often section open caisson has above structure, and connection dress is equipped between the high pressure water injection pipe between neighbouring two sections open caisson
It sets, each high pressure water injection pipe is sequentially connected upwards, accumulates a branch of at several well heads, is connected to high-pressure injection pump at pumping plant, high
Pressure injection stock pump can be multiple high pressure water injection pipe pressure supply.Water or mud may be selected in blasting materials material in high pressure water injection pipe.It opens
Dynamic high-pressure injection pump, water or mud wash bottom stratum open, open caisson is certainly by being sprayed to steel cutting edge high speed in pumping plant mud pit
Sink under the action of weight, the high pressure water sprayed also makes earth formation become loosely to form mud film reduction open caisson on the outside of the borehole wall
Sinking frictional force.High pressure water injection pipe side spout 16 will spray outside high-pressure slurry or the water phase phase borehole wall, further become borehole wall soil layer
It obtains loosely, makes to be covered with uniform mud film around the borehole wall, water (flow) direction is sprayed obliquely, with subsidence of shaft crib direction on the contrary, water
Stream impact effect is more preferable, while also reducing the frictional force between the pipe fitting and soil layer of side spout.
High-pressure injection pump is set as one or more, multiple high-pressure injection pumps can also with to high pressure water injection pipe zonal control,
Zonal control, adjustable structure subsidence velocity are carried out to the high pressure water injection pipe pressure of different lateral different zones according to condition of construction
It can reduce its lateral pressure if any inclination with balance, increase offside pump pressure, correct until horizontal.
Specific construction step, below by taking open caisson as an example, each sinking section is a walling crib,
One, prefabricated walling crib, most next stage walling crib bottom are equipped with cutting edge, and walling crib inner wall is equipped with high pressure water injection pipe, high pressure injection
Water pipe water outlet 20 is located at the most cutting edge of the bottom of next stage walling crib, and the water flow jet direction of high pressure water injection pipe water outlet 20 is perpendicular
Straight downward, high pressure water injection pipe is connected with high-pressure injection pump upwards；
Two, construction area is selected, most next stage walling crib is placed on stratum；
Three, high-pressure injection pump is connected with high pressure water injection pipe, starts high-pressure injection pump, high pressure water flow is from the cutting edge of walling crib bottom
High pressure water injection pipe water outlet 20 spray, the soil layer of lower section is washed open, soil layer be rushed to open rear walling crib under the effect of gravity constantly under
It is heavy, while being removed the surflaes in walling crib using equipment such as grab jaws；
Four, most after next stage subsidence of shaft crib a distance, upper level walling crib is sling, is placed on the top of most next stage walling crib
And be connected with each other, the high pressure water injection pipe between two walling cribs is connected；
Five, the operation of step 3 is repeated, until having connected subsidence of shaft crib to designated position；
Six, when construction depth is inadequate, the operation Step 3: step 4 is repeated, after construction depth reaches requirement, is terminated
Construction.
The structure of specific sinking section can also be further improved according to construction environment and purposes.
Such as when reference seawater, need in seabed operation, open caisson is needed using filtering seepage well structure, as shown in Figure 1, the borehole wall
Can be by the structure of folder filter layer 12 between inside walling crib 11 and outside walling crib 14, inside walling crib 11 and outside walling crib 14 have steel
Plate welding forms, and filter layer 12 uses three-stage filtration layer according to grain composition.Installing submersible pump and seawater delivery pipe 3 in open caisson,
Seawater in open caisson 18 is delivered to required place.The conveying of seawater draws casing 2 to open caisson 18 using underground no-dig technique drilling machine,
Then seawater delivery pipe 3 and cable and cable protection pipe 19 are reversely drawn out of well to control room 1.
Walling crib internal reservation repairs cat ladder 15, is connected by screw bolts between two section walling cribs, counts from the top down, the second section walling crib
Working drawing review platform 10 is placed, working drawing review platform 10 uses steel construction, junction walling crib pre-embedded bolt, walling crib to lift after the completion
Steel structure support is positioned at built-in fitting, is bolted, and platform backing plate of mating formation, working drawing review platform 10 mainly facilitates equipment and instrument
Repair.
The open caisson bottom of subsea construction builds bottom plate, and shaft bottom concrete placed under water bed course is hung after concrete cushion initial set
It puts on bar-mat reinforcement to concrete, continues casting concrete back cover, form bottom plate.Bottom plate top is sedimentary, and thickness of deposits reaches
Clean-out service can be carried out after to requirement.
Well lid is installed on 18 top of open caisson, and it is that steel wire is constituted that well lid, which is among upper layer and lower layer steel plate, is all provided on upper lower steel plate
The spacing of hole, the size of hole requires to determine according to water percolating capacity；Well lid connects vent hose 8, buoy 6 and highstrenghtpiston
Ventilation duct block 5, buoy 6, block 5 etc. float on sea always, play positioning and reminding effect.Hose can with unicom in well
Ensure air pressure balance in well.
The beneficial effects of the invention are as follows the quick of immersed tube in bridge, bridges and culverts, diversion works, water engineering, open caisson or caisson
Construction, is particularly suitable for the introduction of seawater, solves the needs of problems of some marine parks or aquarium lot of pure seawater.
Claims (6)
1. no-dig technique or drilling immersed tube, open caisson or Caisson method, including following construction procedure：
One, prefabricated sinking section, immersed tube, open caisson or caisson are made of at least one sinking section, and most next stage, which sinks to saving bottom, to be equipped with
Cutting edge, the section inner wall that sinks are equipped with high pressure water injection pipe, and high pressure water injection pipe water outlet is located at the sword of the bottom of most next stage sinking section
At mouthful, straight down, high pressure water injection pipe is connected with high-pressure injection pump upwards in the water flow jet direction of high pressure water injection pipe water outlet；
Two, construction area is selected, most next stage, which is sunk to saving, to be placed on stratum；
Three, high-pressure injection pump is connected with high pressure water injection pipe, starts high-pressure injection pump, high pressure water flow is from the section bottom cutting edge that sinks
High pressure water injection pipe water outlet sprays, and the soil layer of lower section is washed open, and soil layer sinks to saving after being rushed to open constantly to sink under the effect of gravity,
The surflaes to sink in section is removed simultaneously；
Four, it after most next stage sinks section sinking a distance, slings upper level and sinks to saving, be placed on the upper of most next stage sinking section
Side is simultaneously connected with each other, and the high pressure water injection pipe between two sections that sink is connected；
Five, the operation of step 3 is repeated, until having connected sinking section sinks to designated position；
Six, it when construction depth is inadequate, repeats Step 3: the operation of step 4 terminates to apply after construction depth reaches requirement
Work.
2. no-dig technique as described in claim 1 or drilling immersed tube, open caisson or Caisson method, it is characterised in that：Under described
High pressure water injection pipe side spout of the opening towards outside, high pressure water injection pipe water outlet and high pressure water injection pipe are additionally provided on the side wall of heavy section
Side spout is connected with high pressure water injection pipe.
3. no-dig technique as claimed in claim 2 or drilling immersed tube, open caisson or Caisson method, it is characterised in that：The height
The water flow jet direction of pressure injection water pipe side spout is towards oblique upper.
4. no-dig technique as described in claim 1 or drilling immersed tube, open caisson or Caisson method, it is characterised in that：Adjacent two
It is bolted between a sinking section.
5. no-dig technique as described in claim 1 or drilling immersed tube, open caisson or Caisson method, it is characterised in that：The height
Pressure injection water pipe is at least twice.
6. no-dig technique as described in claim 1 or drilling immersed tube, open caisson or Caisson method, it is characterised in that：The height
Pressure injection stock pump is connected to a few high pressure water injection pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810311730.1A CN108487285A (en) | 2018-04-09 | 2018-04-09 | No-dig technique or drilling immersed tube, open caisson or Caisson method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810311730.1A CN108487285A (en) | 2018-04-09 | 2018-04-09 | No-dig technique or drilling immersed tube, open caisson or Caisson method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108487285A true CN108487285A (en) | 2018-09-04 |
Family
ID=63314969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810311730.1A Pending CN108487285A (en) | 2018-04-09 | 2018-04-09 | No-dig technique or drilling immersed tube, open caisson or Caisson method |
Country Status (1)
| Country | Link |
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| CN (1) | CN108487285A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805053A (en) * | 2019-11-05 | 2020-02-18 | 武汉市市政建设集团有限公司 | Construction method of deep foundation pit open caisson self-sinking supporting system |
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| JP2007291618A (en) * | 2006-04-21 | 2007-11-08 | Yamaha Kako Kensetsu Kk | Submerged structure and submerging method |
| CN105386452A (en) * | 2015-10-16 | 2016-03-09 | 上海市基础工程集团有限公司 | Construction method for assisting in sinking of open caisson through high-pressure water |
| CN106978815A (en) * | 2016-12-15 | 2017-07-25 | 岩土科技股份有限公司 | A kind of open caisson construction device and construction method |
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2018
- 2018-04-09 CN CN201810311730.1A patent/CN108487285A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007291618A (en) * | 2006-04-21 | 2007-11-08 | Yamaha Kako Kensetsu Kk | Submerged structure and submerging method |
| CN105386452A (en) * | 2015-10-16 | 2016-03-09 | 上海市基础工程集团有限公司 | Construction method for assisting in sinking of open caisson through high-pressure water |
| CN106978815A (en) * | 2016-12-15 | 2017-07-25 | 岩土科技股份有限公司 | A kind of open caisson construction device and construction method |
Non-Patent Citations (5)
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| 吴能森: "《地下工程结构》", 30 September 2014, 武汉理工大学出版社 * |
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| 王慧东等: "《桥梁墩台与基础工程》", 31 January 2017, 中国铁道出版社 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805053A (en) * | 2019-11-05 | 2020-02-18 | 武汉市市政建设集团有限公司 | Construction method of deep foundation pit open caisson self-sinking supporting system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180904 |