CN101200898A - Construction method of drilling pile base for bare rock and shallow overburden - Google Patents
Construction method of drilling pile base for bare rock and shallow overburden Download PDFInfo
- Publication number
- CN101200898A CN101200898A CNA2007101686009A CN200710168600A CN101200898A CN 101200898 A CN101200898 A CN 101200898A CN A2007101686009 A CNA2007101686009 A CN A2007101686009A CN 200710168600 A CN200710168600 A CN 200710168600A CN 101200898 A CN101200898 A CN 101200898A
- Authority
- CN
- China
- Prior art keywords
- casing group
- cofferdam
- steel
- casing
- jacket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Revetment (AREA)
Abstract
The present invention relates to a construction method of a drilled pile foundation, in particular to a construction method of a drilled pile foundation in a bare slate and a shallow coverage layer, which applies a steel casing group and conduit framework structure and a steel cofferdam. The method constructs side cofferdam plates, conduits and steel casings into a high-low leg structure, which is then integrally produced into the steel casing group and conduit framework structure, the side cofferdam plates are welded together to form the steel cofferdam, which is then welded with the steel casing group and conduit framework structure as a whole, and a hoister hangs and, after accurate positioning, places the steel casing group and conduit framework structure to a pier position. After the steel casing group and conduit framework structure is leveled, the bottom of the cofferdam is sealed with concrete, the steel casing group and conduit framework structure is steadied, leaks in the bottoms of the steel casings are blocked off, and a construction platform is mounted on the steel casing group and conduit framework structure in order to carry out the construction of drilled piles. The present invention can effectively resist the effects of water flow, wind waves and wind load, ensure the stability of the steel casing and the platform, avoid the phenomena of slurry leakage and fleeing bores and guarantee that the drilled piles of the pier position on the shallow coverage layer can be uneventful constructed.
Description
Technical field
The present invention relates to the job practices on a kind of drilled pile basis, the specifically a kind of tabula rasa rock of casing group jacket and steel cofferdam and job practices on shallow covering layer drilled pile basis of adopting.
Background technology
Along with the continuous development of society, the construction of different types of rridges is more and more, and the difficulty of construction is increasing, and the quality requirement of construction is more and more higher.Bridge in the past generally build in soil layer thicker on rivers, lake.Under this geological conditions, after transferring, guide pile platform method that the general employing of the construction on drilled pile basis is traditional or jacket insert the job practices of beating guide pile and steel casing again.It is tabula rasa rock or shallow covering layer that but a lot of rivers, lake and stratum, ocean geological condition are arranged, as adopt these methods to construct, because the effect and the influence of current, stormy waves and wind load, the sealing of mouth can't be guaranteed at the bottom of the stable and casing of steel casing, thereby influences construction speed and quality.Therefore on rivers, lake and deepwater tabula rasa rock or shallow covering layer, after can't adopting traditional guide pile platform method or jacket to transfer, inserts pier position drilled pile construction the job practices of beating guide pile and steel casing again.So seeking a kind of new job practices is those skilled in the art's problem demanding prompt solution to solve the problems of the technologies described above always.
Summary of the invention
Purpose of the present invention is exactly to insert the defects of construction of beating guide pile and steel casing again after transferring at traditional guide pile platform method or jacket, a kind of tabula rasa rock of casing group jacket and steel cofferdam and novel construction method on shallow covering layer drilled pile basis of adopting is provided, it can effectively resist the effect of current, stormy waves and wind load, and construction safety is carried out reliably smoothly.
Technical scheme of the present invention is achieved in that it is with the cofferdam side plate, conduit and casing manufacture height leg structure, then height leg structural entity is manufactured steel casing group and jacket structure, the cofferdam side plate is welded into steel cofferdam and is welded into integral body with casing group jacket, with lifting gear the casing group jacket location of slinging is accurately transferred to the pier position and located, after the leveling of casing group jacket, with concrete to carrying out the concrete back cover in the cofferdam, stablize the leak of casing group jacket and shutoff casing bottom, the installation platform carries out drilled pile construction on casing group jacket.
Optimized technical scheme of the present invention is to adopt the multibeam echosounding ship accurately to measure pier position sea bed scar elevation, according to the actual measurement elevation cofferdam side plate, partition panel, every conduit and casing is manufactured height leg form, coincide with scar; Be provided with partition panel in the described steel cofferdam; Be inserted with pitching pile in the described conduit, operation platform is installed on the pitching pile.
The present invention is according to rivers, lake, deepwater tabula rasa rock, shallow covering layer pier position drilled pile construction characteristics, take the job practices of " casing group jacket+steel cofferdam ", can effectively resist the effect of current, stormy waves and wind load, under the effect of wind, wave, current, guarantee the stable of steel casing and platform, avoid the drilling construction spillage, scurry the hole phenomenon, guarantee carrying out smoothly of tabula rasa rock, shallow covering layer pier position drilled pile construction.
Description of drawings
Fig. 1 tabula rasa rock of the present invention, shallow covering layer pier construction general plane arrangement diagram
Fig. 2 tabula rasa rock of the present invention, shallow covering layer pier another general plane arrangement diagram of constructing
Fig. 3 tabula rasa rock of the present invention, the shallow covering layer pier overall facade arrangement diagram of constructing
Fig. 4 tabula rasa rock of the present invention, the shallow covering layer pier overall side arrangement figure that constructs
Among the figure: 1-height leg casing, the 2-sleeve pipe, 3-steel cofferdam side plate, the 4-splicing sleeve, 5-positioning wire rope, the 6-operation platform, 7-is bottom concrete under water, 8-rubble bag and coagulation earth bag, 9-pitching pile.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described:
As Fig. 1, shown in Figure 3, the present invention manufactures height leg structure with cofferdam side plate, conduit and casing, then height leg structural entity is manufactured steel casing group and jacket structure, the cofferdam side plate is welded into steel cofferdam and is welded into integral body with casing group jacket, with lifting gear the casing group jacket location of slinging is accurately transferred to the pier position and located, after the leveling of casing group jacket, with concrete to carrying out the concrete back cover in the cofferdam, stablize the leak of casing group jacket and shutoff casing bottom, the installation platform carries out drilled pile construction on casing group jacket.Can be provided with partition panel in the described steel cofferdam; Be inserted with pitching pile in the described conduit, operation platform is installed on the pitching pile.
Concrete steps are as follows:
1, topographic survey
Adopt multibeam echosounding boat measurement amount construction area river (sea) bed surface elevation, the measurement achievements conversion is river (sea) bed surface absolute altitude topographic map.
2, casing group jacket+steel cofferdam manufacturing, transfer, leveling
Determine the relative relief and the position of every casing 1, sleeve pipe 2 and steel cofferdam side plate 3 to guarantee to exceed the working water level certain altitude after casing group jacket is transferred according to river (sea) the bed surface absolute altitude topographic map of measuring.By interim pad height leg casing 1 is welded into integral body by splicing sleeve 4, form the casing group, in casing group periphery several sleeve pipes 2, form a big jacket by splicing sleeve 4 and casing 1 welding, like this can be in sleeve pipe when transferring pitching pile 9 be used for leveling casing group jacket, also increased the overturning or slip resistance analysis moment of jacket simultaneously.Around big jacket, steel cofferdam truss and steel cofferdam side plate 3 are installed, casing group jacket suspension centre is installed, finish the manufacturing of casing group jacket.
After casing group jacket is made, adopt large-scale floating crane that casing group jacket is winched to place, construction pier position.Adopt the measurement and positioning system that crane barge is positioned, casts anchor.Work location boats and ships are set in position, hoist engine is installed, the guiding of engineering ship, that positioning wire rope 5 is fixed on jacket is suitable for reading.The time of transferring of jacket should be avoided fluctuation tide, tidal bore and astronomical spring tide uniform flow time period faster as far as possible, transfers jacket when being chosen in low slack tide.For overcoming inclination or unstability owing to drag force effect downcomer frame, four jiaos of place's guide piles 9 are temporary fixed with casing group jacket, transfer together, under the effect of location boats and ships hoist engine assist location, transfer, after casing group jacket is transferred and is put in place, untie four orientation angle stakes 9, insert immediately beat, leveling, correction, make jacket transfer deviation and verticality meets design requirement.
3, back cover in the cofferdam
After casing group jacket is transferred and is put in place, in the little slack tide weather of stormy waves, with the comprehensive mixer ship of concrete or on the bank concrete factory casing group jacket is carried out the concrete back cover, bottom concrete 7 under the priming petock, make casing group and basement rock bonding be linked to be integral body, strengthen the resistance to overturning of casing group jacket, the concrete seepage takes place when preventing to pour into pile simultaneously.Before the back cover, can utilize crane barge to throw in the outside, cofferdam and fill out rubble bag and coagulation earth bag 8, the diver is the inboard light leak stopping of diving in the cofferdam, after leak stopping is finished, carries out big back cover again.Be to improve the back cover success rate, except that being provided with the cofferdam side plate 3 at casing group jacket periphery, and partition panel is set in the cofferdam, a big cofferdam is divided into several little cofferdam, back cover is progressively to be advanced to the absolute altitude higher position by the absolute altitude lower in proper order.
4, the boring of drilled pile platform is installed
After the back cover success, erection construction platform 6 on casing group jacket, rigging up carries out drilled pile construction on platform 6.
Claims (4)
1. the job practices on a tabula rasa rock and shallow covering layer drilled pile basis, it is characterized in that: it is with the cofferdam side plate, conduit and casing manufacture height leg structure, then height leg structural entity is manufactured steel casing group and jacket structure, the cofferdam side plate is welded into steel cofferdam and is welded into integral body with casing group jacket, with lifting gear the casing group jacket location of slinging is accurately transferred to the pier position and located, after the leveling of casing group jacket, with concrete to carrying out the concrete back cover in the cofferdam, stablize the leak of casing group jacket and shutoff casing bottom, the installation platform carries out drilled pile construction on casing group jacket.
2. the job practices on tabula rasa rock according to claim 1 and shallow covering layer drilled pile basis, it is characterized in that: adopt the multibeam echosounding ship accurately to measure pier position sea bed scar elevation, according to the actual measurement elevation cofferdam side plate, partition panel, every conduit and casing are manufactured height leg form, coincide with scar.
3. the job practices on tabula rasa rock according to claim 1 and shallow covering layer drilled pile basis is characterized in that: be provided with partition panel in the described steel cofferdam.
4. the job practices on tabula rasa rock according to claim 1 and shallow covering layer drilled pile basis, it is characterized in that: be inserted with pitching pile in the described conduit, operation platform is installed on the pitching pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101686009A CN101200898A (en) | 2007-12-04 | 2007-12-04 | Construction method of drilling pile base for bare rock and shallow overburden |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101686009A CN101200898A (en) | 2007-12-04 | 2007-12-04 | Construction method of drilling pile base for bare rock and shallow overburden |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101200898A true CN101200898A (en) | 2008-06-18 |
Family
ID=39516237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101686009A Pending CN101200898A (en) | 2007-12-04 | 2007-12-04 | Construction method of drilling pile base for bare rock and shallow overburden |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101200898A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748744B (en) * | 2008-12-19 | 2011-06-01 | 四川公路桥梁建设集团有限公司 | Asynchronous sinking construction method for large bridge foundation separation type steel cofferdam |
| CN102747954A (en) * | 2012-07-25 | 2012-10-24 | 中铁大桥局股份有限公司 | Hole-drilling guiding positioning system suitable for inclined rock surface and construction method |
| CN102953362A (en) * | 2012-12-13 | 2013-03-06 | 中铁上海工程局有限公司 | Bored pile platform built on non-covering steep bare rocks in deep rapids |
| CN103352472A (en) * | 2013-07-06 | 2013-10-16 | 中交路桥建设有限公司 | Construction method of deep water pile foundation without steel pile casings |
| CN104594352A (en) * | 2015-01-14 | 2015-05-06 | 中铁大桥局集团有限公司 | Stable structure and drilling platform construction method based on stable structure |
| CN107700504A (en) * | 2017-09-27 | 2018-02-16 | 中铁二十局集团第工程有限公司 | Based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure |
| CN111021328A (en) * | 2019-12-12 | 2020-04-17 | 天津大学 | Submerged large-diameter multi-compartment cylinder and pile foundation combined artificial island |
| CN112319716A (en) * | 2020-11-09 | 2021-02-05 | 河海大学 | Floating construction platform constructed in water curtain and installation and use method thereof |
| CN112982390A (en) * | 2019-12-17 | 2021-06-18 | 上海三航奔腾海洋工程有限公司 | Steel casing of rock-socketed cast-in-place pile capable of not sinking along with punching |
-
2007
- 2007-12-04 CN CNA2007101686009A patent/CN101200898A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748744B (en) * | 2008-12-19 | 2011-06-01 | 四川公路桥梁建设集团有限公司 | Asynchronous sinking construction method for large bridge foundation separation type steel cofferdam |
| CN102747954A (en) * | 2012-07-25 | 2012-10-24 | 中铁大桥局股份有限公司 | Hole-drilling guiding positioning system suitable for inclined rock surface and construction method |
| CN102953362A (en) * | 2012-12-13 | 2013-03-06 | 中铁上海工程局有限公司 | Bored pile platform built on non-covering steep bare rocks in deep rapids |
| CN103352472A (en) * | 2013-07-06 | 2013-10-16 | 中交路桥建设有限公司 | Construction method of deep water pile foundation without steel pile casings |
| CN104594352A (en) * | 2015-01-14 | 2015-05-06 | 中铁大桥局集团有限公司 | Stable structure and drilling platform construction method based on stable structure |
| CN107700504A (en) * | 2017-09-27 | 2018-02-16 | 中铁二十局集团第工程有限公司 | Based on the slope rock river bed steel cofferdam for vacantly hanging pin processing structure |
| CN111021328A (en) * | 2019-12-12 | 2020-04-17 | 天津大学 | Submerged large-diameter multi-compartment cylinder and pile foundation combined artificial island |
| CN112982390A (en) * | 2019-12-17 | 2021-06-18 | 上海三航奔腾海洋工程有限公司 | Steel casing of rock-socketed cast-in-place pile capable of not sinking along with punching |
| CN112319716A (en) * | 2020-11-09 | 2021-02-05 | 河海大学 | Floating construction platform constructed in water curtain and installation and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101200898A (en) | Construction method of drilling pile base for bare rock and shallow overburden | |
| CN105386408B (en) | Deep-water bridge pile foundation construction method | |
| CN102953341B (en) | A kind of high-order trestle work structure be arranged in deep water torrent intectate steep bare rock | |
| CN101368389B (en) | Single and double-wall combined steel cofferdam construction method and its single and double-wall combined steel cofferdam | |
| CN102312442A (en) | Construction method of trestle steel pipe pile foundation | |
| CN102979069A (en) | Bored pile platform construction method on covering-free steep bare rock in deepwater and rapid stream | |
| CN102979039B (en) | Elevated trestle bridge construction method on covering-free steep bare rock in deepwater and rapid stream | |
| CN102953362B (en) | A kind of drilled pile platform be arranged in deep water torrent intectate steep bare rock | |
| CN102268871B (en) | Construction method of turnover platform for underwater pile foundation of bridge | |
| WO2015135471A1 (en) | Hollow cylindrical pier for fixing offshore platform structure to bed and method of installing and constructing same | |
| CN102383436B (en) | Accurate positioning construction method of double-wall steel cofferdam | |
| CN102966111A (en) | Construction method for anchoring steel pipe pile on steep bare rock without covering layer in deep water and rapids | |
| CN109024525B (en) | Artificial island structure considering underground space development and utilization and construction method thereof | |
| CN108505529A (en) | A kind of construction method of the bearing platform construction steel cofferdam of Through Steel case arch bridge | |
| CN102561371A (en) | Steel caisson enclosure structure at island-tunnel combination part | |
| CN110607797A (en) | Underwater construction method for water taking head | |
| CN203049443U (en) | High level trestle structure arranged on steep bare rock of deepwater torrent unsheathed layer | |
| CN109853531A (en) | A kind of pile foundation construction process of cast-in-situ bored pile | |
| CN114855865B (en) | Tensioning type fan foundation anchored on rock-based seabed and arrangement method | |
| CN109707002B (en) | Device and method for accurately positioning, sinking and installing large water intake head | |
| JP6105044B2 (en) | Partially floating offshore platform for offshore wind power, bridges and offshore structures, and construction method | |
| CN202969333U (en) | Steel truss rock-socketed wharf structure | |
| CN203486110U (en) | Buoyant-tower-type ocean platform | |
| CN202989949U (en) | Steel casing fixing structure on steep bare rock without covering layer in deep water and rapids | |
| CN104762942A (en) | Soft soil foundation seabed fixed mounting construction method of water building ocean fixed platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080618 |