CN104895056B - Protection against erosion large diameter bored pile construction method - Google Patents
Protection against erosion large diameter bored pile construction method Download PDFInfo
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- CN104895056B CN104895056B CN201510295191.3A CN201510295191A CN104895056B CN 104895056 B CN104895056 B CN 104895056B CN 201510295191 A CN201510295191 A CN 201510295191A CN 104895056 B CN104895056 B CN 104895056B
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Abstract
The present invention relates to a kind of protection against erosion large diameter bored pile construction method; described large diameter bored pile uses packaged type high-rigid type guiding frame to carry out the degree control of steel pile casting, and scour protection layer includes lower floor's cement injecting cement paste, mesopelagic layer bag note sand body and upper strata stone riprap；Packaged type high-rigid type guiding frame is made up of parts such as steel truss, pushing tow adjusting means, moving guide rail, mobile pulley and traction apparatuss；Large-diameter Steel casing takes segmental machining, field joint sinking technique, and sinking process uses packaged type high-rigid type guiding frame to carry out the location of steel pile casting, degree control and correction；Cement injection body overcoat is formed by reserved Grouting Pipe high pressure pouring cement mortar in the range of riverbed certain depth, jackstone erosion control brush layer of constructing after treating the construction of whole pile group after filling pile construction.The protection against erosion large diameter bored pile of the present invention is anxious at current, wash away that violent section construction quality is high, speed is fast, has preferable technical economic benefit.
Description
Technical field
The present invention relates to protection against erosion large diameter bored pile and construction method in a kind of strong tide swift running water, belong to the pile foundation of science of bridge building
Construction field, it is adaptable to the construction of large diameter bored pile in water, is particularly suited for that hydrologic condition is complicated, riverbed width is shallow, damp
The section super-long and large-diameter bored piles construction that high current is anxious, erosion and deposition is violent.
Background technology
It is the one of bridge construction that the section complicated in hydrologic condition, the wide high current shallow, damp in riverbed anxious, erosion and deposition is violent carries out pile foundation construction
Individual technological difficulties, and the sinking of steel pile casting is the key point of pile foundation construction the most smoothly.The most quickly, safely, the most accurately
The sinking carrying out pile foundation steel pile casting is the difficult point of bored pile construction, is mainly reflected in: the activity duration of (1) steel pile casting sinking
Extremely short, for ensureing sinking safety and the precision of steel pile casting, it is necessary to select to carry out first joint pile foundation steel pile casting at the slack period of each spring tide
Sinking；(2) current and bore pressure are big；(3) what strong tide caused riverbed washes away change.
Be irrigated in this type of strong tide torrent environment at present the construction of stake frequently with method be to use leading truck to carry out steel pile casting
Sinking, after treating filling pile construction, carries out stream bed protection by multilamellar erosion control brush layer.These method major defects are: (1)
Leading truck is immovable, it is often necessary to a bored concrete pile arranges a leading truck, thus brings being significantly increased of engineering cost；(2)
Scour protection layer is just arranged after filling pile construction, and it is very long to irrigate pile group construction period, and riverbed can during this period
Can have been subjected to violent scour, steel pile casting is it may happen that tilt and affect follow-up bored concrete pile rotary drilling.
In sum, although the construction of existing protection against erosion large diameter bored pile achieves certain effect in strong tide swift running water, but
Still suffer from needing improvements.In consideration of it, according to the needs of current engineering reality, need a kind of protection against erosion of invention badly effective, execute
Work facilitates fast, protection against erosion large diameter bored pile that cost is low and construction method.
Summary of the invention
It is an object of the invention to overcome deficiency of the prior art, it is provided that a kind of protection against erosion is effective, and easy construction is fast, and cost is low
Protection against erosion large diameter bored pile construction method.
This protection against erosion large diameter bored pile construction method, it is characterised in that: comprise the following steps:
Step one, Platform pipe pile driving construction: employing boats and ships etc., as temporary construction platform, enter predeterminated position, cast anchor fixing, adopt
Steel-pipe pile is squeezed into piling machine；
Step 2, platform upper structure are installed: steel-pipe pile bottom arranges anchor ear, it arranges sleeve, adopts between sleeve and steel-pipe pile
Filling closely knit with microlith sand, horizontal beam, connecting rod are by being fixedly welded on sleeve；
Step 3, platform rail are installed: arrange upper and lower twice bracket on steel-pipe pile outer barrel, and bottom bracket is arranged guide rail,
Guide rail uses steel channel beam, and notch upwards, top bracket arranges spacing beam；
Step 4, high-rigid type guiding frame move in place: the square truss that high-rigid type guiding frame is made up of shaped steel bar, up/down perforation,
Some pulleys are arranged in lower beam bottom, and the medium position of upper and lower four bar is symmetrical arranged eight box jack thrustors, edge
Steel channel beam guide rail to be bolted after pull strength effect is moved to position；
Step 5, first joint steel pile casting sinking: the perpendicularity of steel pile casting 8 box jack thrustors by high-rigid type guiding frame
Regulate, and synchronize to transfer the geomembrane bag of band PVC position-limiting tube；
Step 6, geomembrane bag inject sand gravel: in geomembrane bag, inject sand gravel by note sandpipe, be allowed to the whole soil of filling
Work film bag；
The docking of step 7, follow-up steel pile casting, sinking: by bolt, upper-lower section steel pile casting is connected firmly, then in peripheral solder one
Circle is the most fixing, strengthens the rigidity of junction；
Step 8, boring, mud off, transfer steel reinforcement cage and casting concrete: rotary inverse circulation mud off is drilled with pore-forming,
High-pressure slip-casting processes four Grouting Pipe of steel reinforcement cage peripheral disposition of formation volumes, transfers steel reinforcement cage casting concrete；
Step 9, upper pull steel protective-cylinder: after concrete initial set, pull steel protective-cylinder in segmentation；
Step 10, the erosion-protection high-pressure slip casting of stratum, riverbed: by being reserved in the Grouting Pipe high-pressure injected water mud on bored concrete pile surface, make
Obtain the extension of cement grout layer peripherally, become one layer of cement injection body overcoat in bed configuration；
Step 11, jackstone erosion control brush layer are constructed: after treating that whole pile group is all constructed, at one layer of block stone layer of geomembrane bag upthrow,
Improve the protection against erosion ability of clump of piles position further；
Step 12, GSZ protection against erosion net integral protection: GSZ protection against erosion net is set on jackstone erosion control brush layer, at jackstone
Erosion control brush layer surrounding arranges some fixing anchors, including soil cement reinforcing body, the anchoring body of rod and anchor plate.
As preferably: in described step 5, Large-diameter Steel casing takes segmental machining, field joint sinking technique, and sinking process is adopted
The location of steel pile casting, degree control and correction is carried out with packaged type high-rigid type guiding frame.
As preferably: in described step 5, annular membrane bag is internal connects a pvc pipe, and pvc pipe is enclosed within outside steel pile casting as ring-type
The position-limiting tube of film bag.
As preferably: in described step 5, geomembrane bag and head save steel pile casting and synchronize, when sinking steel protecting canister arrives riverbed；
In described step 6, in geomembrane bag, inject sand gravel, form film bag note sand overcoat.
As preferably: in described step 10, cement injection body overcoat is to be existed by reserved Grouting Pipe after filling pile construction
In the range of riverbed certain depth, high pressure pouring cement mortar is formed.
As preferably: in described step 11, jackstone erosion control brush layer is after whole pile group is constructed, and notes sand overcoat at film bag
Upper jackstone and formed.
The invention has the beneficial effects as follows:
(1) use Large-diameter Steel casing to carry out the construction of cast-in-situ bored pile in strong tide swift running water, Large-diameter Steel casing is taked segmentation
Processing, field joint sinking technique, sinking process uses packaged type high-rigid type guiding frame to carry out the location of steel pile casting, perpendicularity
Control and correction；
(2) big rigidity multifunctional mobile leading truck is by shaped steel bearing beam, steel pipe main couple, pushing tow adjusting means and moving guide rail group
Becoming, wherein pushing tow adjusting means is made up of jack and limited roller, in the sinking watching of steel pile casting, upper and lower by leading truck
The cooperation of the adjusting means of layer four direction, guides steel bushing and perpendicularity correction；
(3) before steel pile casting sinking, at the pvc pipe of one certain altitude of steel pile casting outer sheath, and make steel pile casting in pvc pipe
Can freely move up and down, pvc pipe connects a geomembrane bag, when sinking steel protecting canister arrives riverbed, injects sand gravel in geomembrane bag,
Form film bag note sand scour protection layer；
(4) formed by reserved Grouting Pipe high pressure pouring cement mortar in the range of riverbed certain depth after filling pile construction
Cement injection body overcoat, jackstone erosion control brush layer of constructing after treating the construction of whole pile group, overall covering protection against erosion geotechnique's lattice on it
Grid protection against erosion net；
(5) the lower floor's cement grouting layer, the mesopelagic layer bag that are formed note layer of sand, three layers of scour protection layer of upper strata riprap layer, permissible
Guarantee construction time and the stability in riverbed, bridge operation phase pile group position.
Accompanying drawing explanation
Fig. 1 is protection against erosion large diameter bored pile construction elevation；
Fig. 2 and Fig. 3 is the packaged type positive facade of high-rigid type guiding frame, side elevational view.
Description of reference numerals: 1-cast-in-situ bored pile, 2-jackstone erosion control brush layer, 3-film bag note sand overcoat, 4-cement injection body overcoat,
5-GSZ protection against erosion net, 6-geomembrane bag, 7-PVC manages, 8-Grouting Pipe, and 9-notes sandpipe, 10-anchor plate, and 11-anchors
The body of rod, 12-soil cement reinforcing body, 13-steel pile casting, 14-operation platform steel-pipe pile, 15-anchor ear, 16-sleeve, 17-microlith sand,
18-horizontal beam, 19-connecting rod, 20-guide rail, the spacing beam of 21-, 22-packaged type high-rigid type guiding frame, 221-leading truck steel truss
Frame, 222-jack thrustor, 223-pulley, face, 23-riverbed, 24-channel scour affects line.
Detailed description of the invention
With embodiment, the present invention is described further below in conjunction with the accompanying drawings.Although the present invention will be described in conjunction with preferred embodiment,
It should be understood that be not offered as limiting the invention in described embodiment.On the contrary, the present invention will contain and can be included in attached right
Alternative, modified model and equivalent in the scope of the present invention that claim limits.
Fig. 1 is protection against erosion large diameter bored pile construction elevation, and Fig. 2 is the packaged type positive facade of high-rigid type guiding frame, side
Elevation, with reference to shown in Fig. 1～2, protection against erosion large diameter bored pile uses packaged type high-rigid type guiding frame to carry out steel pile casting
Degree control, scour protection layer includes lower floor's cement injecting cement paste, mesopelagic layer bag note sand body and upper strata stone riprap.
Large diameter bored pile 1 diameter 2.5m, long about the 100m of stake, maximum water depth 10m, local maxima washes away up to 5m；
Steel pile casting 13 uses the Q235A roll of steel plate of thickness 20mm to make the cylinder of diameter 2.8m, and steel pile casting divides two joints to carry out sinking, first
The joint long 13m of steel pile casting；High-rigid type guiding frame 22 is used to carry out the adjustment of steel pile casting perpendicularity, jack thrustor about 222
Two-layer four direction amounts to 8, up and down distance 3.0m；PVC position-limiting tube 7 internal diameter 3.0m, highly 1.0m, annular is inserted in outside
Geomembrane bag 6, a diameter of 10m of geomembrane bag 6 largest extension；It is 3.0m that cement injection overcoat 4 processes thickness, maximum
Reason diameter 15m；Film bag note sand overcoat 3 rubble leveling forms jackstone erosion control brush layer 2, and scope covers whole pile group, and to extension
Stretch 2 times of pile spacings, thickness 1.0m；Overall covering GSZ protection against erosion net 5 on riprap protection layer 2, its surrounding arranges some
Fixing anchor, including the soil cement reinforcing body 12 of diameter 3.0m, highly 5.0m, the anchoring body of rod 11 He of length 3.0m
The anchor plate 10 of 3.0 × 3.0m.
The main construction course of above-mentioned protection against erosion large diameter bored pile is as follows:
Step one, Platform pipe stake 14 are constructed: employing boats and ships etc., as temporary construction platform, enter predeterminated position, cast anchor fixing,
Piling machine is used to squeeze into steel-pipe pile；
Step 2, platform upper structure are installed: steel-pipe pile bottom arranges anchor ear 15, and it arranges sleeve 16, sleeve and steel-pipe pile
Between use microlith sand 17 fill closely knit, steel truss 18 and 19 is by being fixedly welded on sleeve 16；
Step 3, platform rail 20 are installed: arrange upper and lower twice bracket on steel-pipe pile outer barrel, bottom bracket is arranged and leads
Rail 20, guide rail uses steel channel beam, and notch upwards, top bracket arranges spacing beam 21；
Step 4, high-rigid type guiding frame 22 move in place: the square truss 221 that high-rigid type guiding frame is made up of shaped steel bar, on
Under through, lower beam bottom arrange some pulleys 223, the medium position of upper and lower four bar is symmetrical arranged eight box jack
Thrustor 222, is bolted after pull strength effect is moved to position along steel channel beam guide rail；
Step 5, first joint steel pile casting 13 sinking: the perpendicularity of steel pile casting 8 box jack pushing tows by high-rigid type guiding frame
Device 222 regulates, and synchronizes to transfer the geomembrane bag 6 of band PVC position-limiting tube 7；
Step 6, geomembrane bag 6 inject sand gravel: in geomembrane bag 6, inject sand gravel by note sandpipe 9, be allowed to fill
Fill out whole geomembrane bag 6；
Step 7, follow-up steel pile casting 13 dock, sinking: be connected firmly by upper-lower section steel pile casting by bolt, the most outside weld all around
Connect a circle to fix further, strengthen the rigidity of junction；
Step 8, boring, mud off, transfer steel reinforcement cage and casting concrete: rotary inverse circulation mud off is drilled with pore-forming,
Process the steel reinforcement cage peripheral disposition 4 road Grouting Pipe of formation volumes at high-pressure slip-casting, transfer steel reinforcement cage casting concrete；
Step 9, upper pull steel protective-cylinder 13: after concrete initial set, pull steel protective-cylinder in segmentation；
Step 10, stratum, riverbed erosion-protection high-pressure slip casting 4: by being reserved in the Grouting Pipe 8 high-pressure injected water mud on bored concrete pile surface,
Cement grout layer peripherally is extended, becomes one layer of grout pouring layer in bed configuration.
Step 11, jackstone erosion control brush layer 2 are constructed: after treating that whole pile group is all constructed, at one layer of block stone layer of film bag upthrow,
Improve the protection against erosion ability of clump of piles position further；
Step 12, GSZ protection against erosion net integral protection: GSZ anti-entirety is set on jackstone erosion control brush layer 2 and washes away net 5,
Some fixing anchors are set in surrounding, including soil cement reinforcing body 12, the anchoring body of rod 22 and anchor plate 10.
Claims (6)
1. a protection against erosion large diameter bored pile construction method, it is characterised in that: comprise the following steps:
Step one, Platform pipe stake (14) construction: employing boats and ships etc., as temporary construction platform, enter predeterminated position, cast anchor
Fixing, use piling machine to squeeze into steel-pipe pile (14)；
Step 2, platform upper structure are installed: steel-pipe pile bottom arranges anchor ear (15), and it arranges sleeve (16), sleeve with
Using microlith sand (17) to fill closely knit between steel-pipe pile, horizontal beam (18), connecting rod (19) are by being fixedly welded on sleeve (16)
On；
Step 3, platform rail (20) are installed: arrange upper and lower twice bracket, bottom cattle on steel-pipe pile (14) outer barrel
Arranging guide rail (20) on lower limb, guide rail (20) uses steel channel beam, and notch upwards, top bracket arranges spacing beam (21)；
Step 4, high-rigid type guiding frame (22) are mobile in place: the square purlin that high-rigid type guiding frame (22) is made up of shaped steel bar
Frame (221), up/down perforation, the lower beam bottom some pulleys of layout (223), the medium position of upper and lower four bar is symmetrical arranged
Eight boxes jack thrustor (222), pass through spiral shell along steel channel beam guide rail (20) after pull strength effect is moved to position
Bolt is fixed；
Step 5, first joint steel pile casting (13) sinking: the perpendicularity of steel pile casting (13) passes through the 8 of high-rigid type guiding frame (22)
Individual box jack thrustor (222) regulates, and synchronizes to transfer the geomembrane bag (6) of band PVC position-limiting tube (7)；
Step 6, geomembrane bag (6) inject sand gravel: in geomembrane bag (6), inject gravel by note sandpipe (9)
Stone, is allowed to filling whole geomembrane bag (6)；
The docking of step 7, follow-up steel pile casting (13), sinking: upper-lower section steel pile casting (13) is connected firmly, so by bolt
After enclose further fixing in peripheral solder one, strengthen the rigidity of junction；
Step 8, boring, mud off, transfer steel reinforcement cage and casting concrete: rotary inverse circulation mud off is drilled with pore-forming,
Process four Grouting Pipe (8) of steel reinforcement cage peripheral disposition of formation volumes at high-pressure slip-casting, transfer steel reinforcement cage casting concrete；
Step 9, upper pull steel protective-cylinder (13): after concrete initial set, pull steel protective-cylinder (13) in segmentation；
Step 10, the erosion-protection high-pressure slip casting of stratum, riverbed: by being reserved in Grouting Pipe (8) the high pressure injection on bored concrete pile (1) surface
Enter cement mortar so that cement grout layer peripherally extends, and becomes one layer of cement injection body overcoat (4) in bed configuration；
Step 11, jackstone erosion control brush layer (2) are constructed: after treating that whole pile group is all constructed, on geomembrane bag (6)
Throw one layer of block stone layer, improve the protection against erosion ability of clump of piles position further；
Step 12, GSZ protection against erosion net (5) integral protection: on jackstone erosion control brush layer (2), GSZ erosion control is set
Brush net (5), arranges some fixing anchors in jackstone erosion control brush layer (2) surrounding, including soil cement reinforcing body (12), anchor
Gu the body of rod (11) and anchor plate (10).
Protection against erosion large diameter bored pile construction method the most according to claim 1, it is characterised in that: described step 5
In, Large-diameter Steel casing (13) takes segmental machining, field joint sinking technique, and sinking process uses the big rigidity of packaged type to lead
The location of steel pile casting, degree control and correction is carried out to frame (22).
Protection against erosion large diameter bored pile construction method the most according to claim 1, it is characterised in that: described step 5
In, annular membrane bag (6) is internal connects a pvc pipe (7), and pvc pipe (7) is enclosed within steel pile casting (13) outside as annular membrane bag
(6) position-limiting tube.
Protection against erosion large diameter bored pile construction method the most according to claim 1, it is characterised in that: described step 5
In, geomembrane bag (6) and head save steel pile casting (13) and synchronize, when steel pile casting (13) sinks to riverbed；Described
In step 6, in geomembrane bag (6), inject sand gravel, form film bag note sand overcoat (3).
Protection against erosion large diameter bored pile construction method the most according to claim 1, it is characterised in that: described step 10
In, cement injection body overcoat (4) is to pass through reserved Grouting Pipe (8) after filling pile construction at riverbed certain depth
In the range of high pressure pouring cement mortar formed.
Protection against erosion large diameter bored pile construction method the most according to claim 4, it is characterised in that: described step 10
In one, jackstone erosion control brush layer (2) is after whole pile group is constructed, and is formed at the upper jackstone of film bag note sand overcoat (3)
's.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510295191.3A CN104895056B (en) | 2015-06-02 | 2015-06-02 | Protection against erosion large diameter bored pile construction method |
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| CN201510295191.3A CN104895056B (en) | 2015-06-02 | 2015-06-02 | Protection against erosion large diameter bored pile construction method |
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| CN104895056B true CN104895056B (en) | 2016-08-31 |
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| CN105421454B (en) * | 2015-11-27 | 2017-08-25 | 中交第二航务工程局有限公司 | Stake top support walking movement piling platform |
| CN106289192A (en) * | 2016-08-01 | 2017-01-04 | 四川电力建设三公司 | Photovoltaic power plant bracket bored concrete pile localization method |
| CN106320332B (en) * | 2016-09-09 | 2018-08-31 | 中交第二航务工程局有限公司 | The construction method and construction system of over-water bored pile are carried out based on pushing tow mobile platform |
| CN107642085B (en) * | 2017-10-20 | 2023-11-21 | 北京京能东方建设工程有限公司 | Pile casing for bored pile and karst cave treatment method |
| CN108797631B (en) * | 2018-06-12 | 2021-05-07 | 中交上海港湾工程设计研究院有限公司 | Jacket multi-cylinder negative pressure barrel anemometer tower foundation scouring protection method |
| CN112195951B (en) * | 2020-09-16 | 2022-09-13 | 浙江世润建创科技发展有限公司 | Bridge pier tip bundle and scouring sheet pile protection structure and construction method |
| CN113914391A (en) * | 2021-11-24 | 2022-01-11 | 中电建铁路建设投资集团有限公司 | Major diameter pile foundation steel casing perpendicularity monitoring and correcting device and correcting method |
| CN114753414B (en) * | 2022-04-13 | 2023-07-14 | 中交三航局第三工程有限公司 | Intelligent anti-scouring device and method for annular grid type fluidized soil steel pipe pile |
| CN114960627B (en) * | 2022-05-20 | 2023-03-10 | 中国建筑第二工程局有限公司 | Construction method of overlong slow-bonding prestressed cast-in-place pile |
| CN117027673B (en) * | 2023-08-28 | 2023-12-22 | 中建交通工程建设(长春)有限公司 | Conveniently-moved river cast-in-place pile foundation construction device and construction method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6187017A (en) * | 1984-10-04 | 1986-05-02 | Kajima Corp | Construction of underwater concrete |
| CN103526747B (en) * | 2013-09-26 | 2016-05-18 | 浙江钱塘江水利建筑工程公司 | Morning and evening tides environmental impact pore-creating filling pile construction |
| CN104032743B (en) * | 2014-05-21 | 2016-01-20 | 中铁大桥局集团第一工程有限公司 | Steel pile casting under deep water, torrent and inclined rock base condition transfers inserted to play method |
| CN104404861A (en) * | 2014-11-05 | 2015-03-11 | 中交第二航务工程局有限公司 | Steel trestle provided with steel anchor pile and construction method of steel trestle |
| CN104594352B (en) * | 2015-01-14 | 2016-12-07 | 中铁大桥局集团有限公司 | A kind of robust structure and drilling platform construction method based on this robust structure |
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Effective date of registration: 20160726 Address after: 14 building, 128 innovation building, 810000 Changjiang Road, Qinghai, Xining Applicant after: ZHENGPING ROAD AND BRIDGE CONSTRUCTION CO., LTD. Address before: Gongshu District Shi Xiang Road Hangzhou city Zhejiang province 310015 and Hangzhou Road intersection C Wanda Plaza office building room 1901 Applicant before: Hangzhou Jiang Run Science and Technology Ltd. |
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