CN110373999A - A kind of river dyke infiltration method of disposal based on across river Cable stayed Bridge Main Tower foundation construction - Google Patents

A kind of river dyke infiltration method of disposal based on across river Cable stayed Bridge Main Tower foundation construction Download PDF

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Publication number
CN110373999A
CN110373999A CN201910548538.9A CN201910548538A CN110373999A CN 110373999 A CN110373999 A CN 110373999A CN 201910548538 A CN201910548538 A CN 201910548538A CN 110373999 A CN110373999 A CN 110373999A
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CN
China
Prior art keywords
pile
row
dike
construction
fender pile
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CN201910548538.9A
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Chinese (zh)
Inventor
高军
林晓
盛永东
汤宇
李波
杨立云
蔡荣喜
贾超
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高军
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Priority to CN201910548538.9A priority Critical patent/CN110373999A/en
Publication of CN110373999A publication Critical patent/CN110373999A/en

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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C1/00Design or layout of roads, e.g. for noise abatement, for gas absorption
    • E01C1/002Design or lay-out of roads, e.g. street systems, cross-sections ; Design for noise abatement, e.g. sunken road
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00Coherent pavings made in situ
    • E01C7/08Coherent pavings made in situ made of road-metal and binders
    • E01C7/10Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
    • E01C7/14Concrete paving
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D1/00Bridges in general
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/12Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
    • E01D19/125Grating or flooring for bridges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D15/00Handling building or like materials for hydraulic engineering or foundations
    • E02D15/02Handling of bulk concrete specially for foundation or hydraulic engineering purposes
    • E02D15/04Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/32Foundations for special purposes
    • E02D27/52Submerged foundations, i.e. submerged in open water
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12Consolidating by placing solidifying or pore-filling substances in the soil
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/02Sheet piles or sheet pile bulkheads
    • E02D5/03Prefabricated parts, e.g. composite sheet piles
    • E02D5/04Prefabricated parts, e.g. composite sheet piles made of steel
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/02Sheet piles or sheet pile bulkheads
    • E02D5/03Prefabricated parts, e.g. composite sheet piles
    • E02D5/04Prefabricated parts, e.g. composite sheet piles made of steel
    • E02D5/06Fitted piles or other elements specially adapted for closing gaps between two sheet piles or between two walls of sheet piles
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/34Concrete or concrete-like piles cast in position ; Apparatus for making same
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02Placing by driving
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/18Placing by vibrating
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00Production methods
    • E02D2250/0023Cast, i.e. in situ or in a mold or other formwork

Abstract

The embodiment of the present invention discloses a kind of river dyke infiltration method of disposal based on across river Cable stayed Bridge Main Tower foundation construction, is related to crossing-fiver bridge technical field of construction, can prevent foundation of main pylon nearby and close on the seepage flow of the side Jiang Di.It include: smooth location, dike protection platform of constructing, inserting piling side steel sheet pile and steel-pipe pile porotective wall near water.First row fender pile is drilled on the first side Jiang Di using churning driven;In the preset range construction drill and mortar depositing construction platform centered on second row fender pile pile foundation;Second row fender pile is drilled with using churning driven;First row fender pile closes on the first side Jiang Di, and second row fender pile closes on the foundation of main pylon, and the first row fender pile and the second fender pile correspondence are arranged;Nearly dike side side carries out high pressure phase equilibria and along " U-shaped " the sleeve valve floral tube delamination pour slurry construction in dike side between first row fender pile and second row fender pile;The binder and crown beam of construction dike protection.The present invention is suitable for the construction of high-speed railway river-spanning bridge.

Description

A kind of river dyke infiltration method of disposal based on across river Cable stayed Bridge Main Tower foundation construction
Technical field
The present invention relates to crossing-fiver bridge technical field of construction, more particularly to the river based on across river Cable stayed Bridge Main Tower foundation construction Dyke seeps method of disposal.
Background technique
With the construction across river high-speed railway, river-spanning bridge becomes the necessary links in high speed railway construction.Due to across river Bridge builds the hydrology and geology characteristic near position, such as Water area of Changjiang River, and abundant water, coating exterior portion predominantly can Shape cohesive soil is moulded, in the construction process, its own pier base and its Anti-seeping technology for closing on the side Jiang Di are particularly important for bridge.
For this reason, it may be necessary to there is a kind of river dyke based on across river Cable stayed Bridge Main Tower foundation construction to seep method of disposal.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of river dyke infiltration disposition based on across river Cable stayed Bridge Main Tower foundation construction Method can prevent foundation of main pylon nearby and close on the seepage flow of the side Jiang Di, to ensure bridge quality safety to a certain extent And dykes and dams is firm.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
The embodiment of the present invention provides a kind of river dyke infiltration method of disposal based on across river Cable stayed Bridge Main Tower foundation construction, described Method includes: the first original slabstone protective layer of side river dike zone of protection of cleaning.
After levelling of the land, dike protection platform of constructing, inserting piling side steel sheet pile and steel-pipe pile porotective wall near water;
First row fender pile is drilled on the first side Jiang Di using churning driven;
After the completion of first row protects pile driving construction, in the preset range construction drill centered on second row fender pile pile foundation And mortar depositing construction platform;
Second row fender pile is drilled with using churning driven;The first row fender pile closes on the first side Jiang Di, the second row Fender pile closes on the foundation of main pylon, and the first row fender pile and the second fender pile correspondence are arranged;
After completing second row protection pile driving construction, nearly dike side side is carried out between first row fender pile and second row fender pile " U-shaped " the sleeve valve floral tube delamination pour slurry construction of high pressure phase equilibria and suitable dike side;
After completing high pressure phase equilibria and constructing along " U-shaped " the sleeve valve floral tube delamination pour slurry in dike side, dike protection of constructing Binder and crown beam.
Preferably, before clearing up the first original slabstone protective layer of side river dike zone of protection comprising steps of
At the foundation of main pylon and the first side river dike dike drop-over, the two-way lower big causeway of each 150m left and right settings of upstream and downstream Road, the wide 8m of pavement of road, the road surface use the concrete road surface C30, and thickness 20cm, side carries out slope using 1: 1 near water, if 2% unidirectional slope, side sets gutter, road top and embankment face Shunping County, bottom and embankment second level platform Shunping County near water;
After the completion of lower embankment road construction, a height of+23.300m of road top mark, road elevation of bottom is+17.000m, Filling the gradient is 10%.
Preferably, the construction dike protection platform within the scope of two rows of fender piles comprising steps of set 170m*25m construction Dike protection platform, a height of+17.000m of deck roof logo, side uses 12 meters long steel sheet pile supporting to platform near water;In the front and back Width is 12m between the first row fender pile and second row fender pile of setting, arranges reinforced concrete bridge deck plate within the scope of long 120m, Floorings specification is 8m*2m*0.2m, and platform both ends and lower causeway road joint are poured 20cm thickness C30 concrete, in embankment and is put down Platform junction sets wide 30cm, the intercepting ditch of deep 20cm;
The intercepting ditch sets 1% slope from centre toward both sides, and diameter 273mm is buried at both ends, and thick 6mm steel pipe is tiltedly worn sidewalk and is discharged into Enter river after sedimentation basin;
Operation platform sets 0.5% weathering from embankment side toward river side, and water flow imports the outer gutter of first row fender pile, draining Ditch sets 1% slope toward both sides from intermediate, enters river after importing sedimentation basin;
Mud ditch is set respectively between each adjacent studs of first row fender pile and second row fender pile;The mud structure is used for Mud flows into adjacent holes when concrete perfusion, then is pumped back in mud pit through mud, to recycle;
Causeway road under operation platform and two sides is connected, mud pit is set in the operation platform two sides.
Preferably, side steel sheet pile and steel-pipe pile porotective wall include: to be located at lateral extent first near water to the inserting piling near water Row hole drilling pile center away from 4m use manipulator inserting piling steel sheet pile;The single long 12m of steel sheet pile, steel sheet pile top mark is a height of+ 17.000m, steel sheet pile bottom absolute altitude are+3.000m, and steel sheet pile buries 10.6m.
Preferably, after inserting piling steel sheet pile, the method also includes: increase 2HN500*200mm type on the outside of the steel sheet pile Steel and double 1200*14mm third steel-pipe pile carry out supporting, and the third steel pipe pile length is 25m, utilize crawler crane and DZ180 Type vibration hammer inserting piling enters fine sand layer.
Preferably, the drilling platform uses steel-pipe pile Bailey beam structure, platform whole width 12.4m, long 45m, deck roof Face absolute altitude+17.000m, with dike protection platform drop-over;The platform girder span is 10.5m, and platform base uses Φ 820mm*10mm squeezes into steel-pipe pile, in conjunction with Φ 1200mm*14mm supporting steel-pipe pile, and in drilled pile construction region and dike protection Platform reinforcing is carried out with fore shaft steel-pipe pile between platform.
Preferably, nearly dike side carries out high pressure phase equilibria and along dike side between first row fender pile and second row fender pile The construction of " U-shaped " sleeve valve floral tube delamination pour slurry include: between first row fender pile and second row fender pile close dike side using effectively Width is the sleeve valve floral tube delamination pour slurry of 2m, and to reinforce to the soil body, the sleeve valve floral tube delamination pour slurry is connected with embankment is in " u "-shaped arrangement, forms cut-pff wall;
Respectively increase " splayed configuration " sleeve valve floral tube delamination pour slurry that effective width is 3m in two side direction of foundation of main pylon upstream and downstream, To reinforce to the soil body, " splayed configuration " sleeve valve floral tube overall length of every side is 70m;
According to slip casting position geological condition and construction experience, slip casting effective radius is 50~70cm, in first row fender pile Nearly dike side 2m slip casting band arranges two row's injected holes, array pitch 1m, horizontal spacing 1m between second row fender pile;
Three row's injected holes, array pitch 1m, horizontal spacing 1m are arranged in two side direction 3m slip casting band of foundation of main pylon upstream and downstream.
Preferably, nearly dike side progress high pressure phase equilibria includes: between first row fender pile and second row fender pile
The positioning of swaying-jet-grouting hole unwrapping wire is carried out by design requirement spacing on construction axis, each hole Unified number, hole location stake is squeezed into Subsurface 0.2m;
It is drilled using PC-150 geological drilling rig, drilling machine is placed into level before drilling, level should be utilized at any time in drilling process Ruler checks drilling machine Realize, plumbing borehole perpendicularity;
Cement slurry specific gravity is measured, mixing drum diameter and effective depth are surveyed out, calculates every theoretical water consumption and cement Dosage;
By every water consumption theoretical position paint marks on cylinder inner wall;
Water, cement are sequentially added according to the label on cylinder inner wall, mixing time must not be lower than 4 minutes;
It is after the completion of cement slurry preparation, PH-5D high spray booth vehicle is in place, it is each to slurries to after projected depth under pipe to be sprayed Item Indexs measure starts the corollary equipment including high-pressure hydraulic pump, air compressor machine, blender and slush pump after qualified;
Various process parameters are adjusted to predefined parameter requirement, start to spray, by pre-provisioning request speed after slurry is returned in aperture Start to be promoted;
High pressure water is first sent, then send cement slurry and compressed air, 1~3min of the quiet spray in original place;
Scheduled injection pressure and whitewashing amount to be achieved, and aperture is emerged after slurries, by it is preset promoted, number of oscillations and Pivot angle carries out spraying operation from bottom to top, and when injection reaches predetermined design height, water, gas and mud are sent in stopping, proposing injection Pipe;
After pipe to be sprayed mentions design altitude, jet grouting terminates, and then pours into cement slurry again into hole, until slurries not Until sinking again, aperture is blocked with cement mortar.
Preferably, nearly dike side carries out high pressure phase equilibria between first row fender pile and second row fender pile further include: During swaying-jet-grouting slurry, slurry temperature is monitored whether in predetermined threshold range;
If continuing high pressure phase equilibria construction in predetermined threshold range;
If stopping spraying not in predetermined threshold range, using the slurries as waste pulp processing, and take measures to control Slurry temperature is in predetermined threshold range.
The embodiment of the present invention provides a kind of river dyke infiltration method of disposal based on across river Cable stayed Bridge Main Tower foundation construction, packet It includes: the first original slabstone protective layer of side river dike zone of protection of cleaning;After levelling of the land, dike protection platform of constructing, inserting piling is faced Water side steel sheet pile and steel-pipe pile porotective wall;First row fender pile is drilled on the first side Jiang Di using churning driven;In first row It protects after the completion of pile driving construction, in the preset range construction drill and mortar depositing construction platform centered on second row fender pile pile foundation; Second row fender pile is drilled with using churning driven;The first row fender pile closes on the first side Jiang Di, and the second row fender pile faces The nearly foundation of main pylon, and the first row fender pile and the second fender pile correspondence are arranged;Complete second row fender pile After construction, nearly dike side side carries out high pressure phase equilibria and along dike side " U-shaped " between first row fender pile and second row fender pile Valve floral tube delamination pour slurry of tucking inside the sleeve is constructed;After completing high pressure phase equilibria and constructing along " U-shaped " the sleeve valve floral tube delamination pour slurry in dike side, apply The binder and crown beam of work dike protection;Due to having been carried out based on the above method based on king-tower base between foundation of main pylon and river dike The river dyke of plinth seeps disposition, can prevent foundation of main pylon nearby and close on the seepage flow of the side Jiang Di, to ensure to a certain extent Bridge quality safety and dykes and dams it is firm.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with Other attached drawings are obtained according to these attached drawings.
Fig. 1 is river dyke infiltration method of disposal process of the one embodiment of the invention based on across river Cable stayed Bridge Main Tower foundation construction Figure;
Fig. 2 one embodiment of the invention river dyke seeps disposition construction layout stracture floor map;
Fig. 3 is 1-1 sectional view in Fig. 2;
Fig. 4 is one embodiment of the invention sleeve valve floral tube slip casting platform plane structural schematic diagram;
Fig. 5 is slip casting Platform pipe stake attachment structure schematic diagram in Fig. 4.
Specific embodiment
The embodiment of the present invention is described in detail with reference to the accompanying drawing.
It will be appreciated that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its Its embodiment, shall fall within the protection scope of the present invention.
It is understood that newly-built river-spanning bridge engineering, can have an impact river, bridge pier and the dykes and dams closed on bridge It will receive impact or seepage flow, in order to reduce the newly-built influence to river of bridge, stablize and improve current river regime, prevent Jiang Dichong Brush, ensureing two sides, oneself builds the safety of dyke and newly building bridge, consolidates bank slope, reduces soil erosion;It needs to carry out antiseepage to Jiang Di Reinforce disposition.
Referring to shown in Fig. 1 and Fig. 2, the embodiment of the present invention provides a kind of Jiang Di based on across river Cable stayed Bridge Main Tower foundation construction Antiseepage method of disposal, can be adapted in the construction of river-spanning bridge, to prevent near foundation of main pylon and close on the side Jiang Di Seepage flow, to ensure the firm of bridge quality safety and dykes and dams to a certain extent.
The levee body is mainly made of lark silty clay, clay silt and a small amount of sand, rubble, high 4.5~6.0m, dike 19.0~20.4m of crest level, the soil body are in half stiff~hard plastic shape, and compactness is in slightly good~preferable.
The described method includes: step 101, the first original slabstone protective layer of side river dike zone of protection of cleaning.
In the present embodiment, specifically, before clearing up the first original slabstone protective layer of side river dike zone of protection comprising steps of
At the foundation of main pylon and the first side river dike dike drop-over, the two-way lower big causeway of each 150m left and right settings of upstream and downstream Road, the wide 8m of pavement of road, the road surface use the concrete road surface C30, and thickness 20cm, side carries out slope using 1: 1 near water, if 2% unidirectional slope, side sets gutter, road top and embankment face Shunping County, bottom and embankment second level platform Shunping County near water;Big causeway down After the completion of the construction of road, a height of+23.300m of road top mark, road elevation of bottom is+17.000m, and filling the gradient is 10%. Waveform anticollision barrier is arranged in two sides after the completion of hardening in road.
102, after to levelling of the land, dike protection platform of constructing, inserting piling side steel sheet pile and steel-pipe pile porotective wall near water.
Meal sees shown in Fig. 2 that in an embodiment of the invention, the construction dike protection platform is comprising steps of in two rows 170m*25m construction dike protection platform is set within the scope of fender pile, a height of+17.000m of deck roof logo, side uses platform near water 12 meters long steel sheet pile supporting;Width is 12m, long 120m between the first row fender pile and second row fender pile of front and back setting Reinforced concrete bridge deck plate is arranged in range, floorings specification is 8m*2m*0.2m, and platform both ends are poured with lower causeway road joint 20cm thickness C30 concrete is infused, sets wide 30cm, the intercepting ditch of deep 20cm in embankment and platform junction;
The intercepting ditch sets 1% slope from centre toward both sides, and diameter 273mm is buried at both ends, and thick 6mm steel pipe is tiltedly worn sidewalk and is discharged into Enter river after sedimentation basin;
Operation platform sets 0.5% weathering from embankment side toward river side, and water flow imports the outer gutter of first row fender pile, draining Ditch sets 1% slope toward both sides from intermediate, enters river after importing sedimentation basin;
Mud ditch is set respectively between each adjacent studs of first row fender pile and second row fender pile;The mud structure is used for Mud flows into adjacent holes when concrete perfusion, then is pumped back in mud pit through mud, to recycle;
Causeway road under operation platform and two sides is connected, mud pit is set in the operation platform two sides.
In another embodiment, side steel sheet pile and steel-pipe pile porotective wall include: in place to the inserting piling near water In the drilling pile center of lateral extent first row near water away from 4m at using manipulator inserting piling steel sheet pile;The single long 12m of steel sheet pile, steel A height of+the 17.000m of sheet pile top mark, steel sheet pile bottom absolute altitude are+3.000m, and steel sheet pile buries 10.6m.Steel sheet pile buries 10.6m, puts down Platform washer stone mixes the soil slope 3.4m.
Shown in referring to Fig. 3, in order to reinforce construction time steel sheet pile stability, after inserting piling steel sheet pile, the method also includes: Increase 2HN500*200mm fashioned iron on the outside of the steel sheet pile and double 1200*14mm third steel-pipe pile carries out supporting, the third Steel pipe pile length is 25m, enters fine sand layer using crawler crane and DZ180 type vibration hammer inserting piling.
Wherein, steel sheet pile and steel pipe pile material will be stacked respectively by model, specification, length, construction part;Every layer heap puts number Amount is usually no more than specification quantity, and each interlayer wants bolster wooden, and chock spacing is generally 3~4m, and upper and lower layer chock should be same On vertical line, the total height of stacking is no more than 2m.
The detailed process of steel sheet pile and third steel-pipe pile inserting piling are as follows:
1. mark sideline in the releasing steel sheet pile angle point of embankment slope foot, using crawler crane by steel sheet pile be hung to insert point at into Row pitching pile, fore shaft will be aligned when pitching pile, and every one piece of insertion puts on pile cover, gently be hammered with DZ180 type vibration hammer;
2., to guarantee steel plate pile verticality, being controlled with total station in both direction during piling;
3. to prevent fore shaft center line plane to be displaced snap-gauge can be set at the steel sheet pile fore shaft that piling carries out direction, with resistance Only sheet pile is displaced;The position of every block of sheet pile is calculated, in advance in purlin simultaneously to correct check at any time;
4. the position and direction to first and second piece of steel sheet pile for starting to squeeze into are it is ensured that precision, is oriented to play template Effect, often squeezing into 1m should measure once, should be welded and fixed immediately with reinforcing bar or steel plate with purlin bracket after beating to predetermined depth;Steel After sheet pile inserting piling is completed, fashioned iron is installed on being close to steel sheet pile embankment leveling face, is welded and fixed between fashioned iron and steel sheet pile;So After carry out double Φ 1200mm steel-pipe pile inserting piling, it is finally that gap between fashioned iron and steel-pipe pile is closely knit with the super pad of steel plate, while steel It with Φ 426mm connection is firm welding between tubular pole.
In an alternative embodiment of the invention, after the completion of dike protection binder and crown beam are constructed, to the steel sheet pile And third steel-pipe pile is extracted;Steel sheet pile extracts the method for using manipulator intermittent control shaking, and steel-pipe pile is extracted to be shaken using DZ180 Dynamic method, vibrates 15min every time, and continuous work is no more than 1.5h, the native hole that steel sheet pile and third steel-pipe pile leave after pulling out It should the processing of backfill in time.
In concrete application, to ensure dike protection pile driving construction quality, when dike protection engineering second row protects pile driving construction, The steel sheet pile deformation monitoring is carried out, monitoring content includes steel sheet pile absolute altitude and displacement.If both ends and intermediate 3 monitoring points carry out Deformation monitoring.
103, first row fender pile is drilled on the first side Jiang Di using churning driven.
In the present embodiment, the first row fender pile includes 28 Φ 2.0m drilled piles, because being limited by place, dike protection 2 rotary drilling rigs of pile driving construction proposed adoption respectively from two sides creep into, drilling sequences using interval circulation, front and rear row intersect method into Row, the not small 20m of spacing distance, adjacent studs age are no less than 7 days intensity.Wherein, the specific construction method of drilled pile can use Construction process for bored pile carries out in the prior art, and details are not described herein.
Wherein, the filling concrete during drilled pile construction uses diameter for the quick bayonet conduit of 305mm, and conduit makes With watertight pressure-bearing and connector tensile test is preceding carried out, forbid with pressure testing of calming the anger.The hydraulic pressure for carrying out watertight test is quiet not less than in hole 1.5 times of water pressure, 1.3 times, P=rchc-rwHw of maximum pressure when may bear concrete perfusion nor less than catheter wall, In formula: p is the maximum pressure (kpa) that conduit may be subject to;Rc is the severe of concrete mix;He is conduit inner concrete column Maximum height, with conduit overall length or it is expected that maximum height;Hw is the depth of mud in hole;Rw is the severe of mud in hole.Example Such as, fender pile stake bottom absolute altitude -35.950m, platform absolute altitude+17.000m, based on 52.95m, hydrostatic pressure is most deep hole 529.5KPa, maximum pressure is P=23.9*54-10.3*52.95=745KPa when concrete perfusion, then watertight test pressure is 1MPa。
104, after the completion of first row protects pile driving construction, in the preset range construction centered on second row fender pile pile foundation Drilling and mortar depositing construction platform.
In the present embodiment, as an optional real embodiment, the drilling platform uses steel-pipe pile Bailey beam structure, and platform is whole Body wide 12.4m, long 45m, platform top surface absolute altitude+17.000m, with dike protection platform drop-over;The platform girder span is 10.5m, platform base squeeze into steel-pipe pile using Φ 820mm*10mm, in conjunction with Φ 1200mm*14mm supporting steel-pipe pile, and are drilling Platform reinforcing is carried out with fore shaft steel-pipe pile between pile driving construction region and dike protection platform.
Specifically, slip casting platform upper uses " 321 " type Bailey beam structure, truss spacing 90cm, setting 13 in cross section Piece, wherein being divided into two groups, inside 3 is 1 group, and 10, outside is 1 group, and two groups of spacing 3.9m are grouting operation region;Bridge floor is adopted With steel bridge deck, two sides are arranged 1.2m high steel railing, are arranged on the outside of railing according to the arrangement of water, electric line and place channel.Steel pipe For pile foundation in addition to braking pier is using double 6 Φ 820*10mm steel-pipe pile, remaining is all made of single 3 Φ 820*10mm steel pipe Stake, braking pier transverse direction stake spacing 2m, longitudinal direction arrange spacing 5.5m+6.5m, and setting Φ 630*8mm steel pipe connects system between steel-pipe pile; The construction of slip casting Platform pipe stake inserting piling is constructed using " halieutics ", and inserting piling steel-pipe pile is using the cooperation DZ180 type vibration of 80t crawler crane Hammer carries out, and superstructure is hole-specifically installed by crawler crane.
Wherein, referring to shown in Fig. 4, the blanking between slip casting Platform pipe stake transverse direction lateral and steel-pipe pile is not easy to control, puts down Connection one end is taken directly welds with steel-pipe pile, and the other end takes Harvard joint form to connect.
105, second row fender pile is drilled with using churning driven;The first row fender pile closes on the first side Jiang Di, and described Two row's fender piles close on the foundation of main pylon, and the first row fender pile and the second fender pile correspondence are arranged.
106, after completing second row protection pile driving construction, the nearly dike side side between first row fender pile and second row fender pile Carry out high pressure phase equilibria and along " U-shaped " the sleeve valve floral tube delamination pour slurry construction in dike side.
In the present embodiment, it is identical that second row fender pile and first row fender pile are drilled with scheme, also repeats no more herein.Specifically , nearly dike side carries out high pressure phase equilibria and along " U-shaped " the sleeve valve flower in dike side between first row fender pile and second row fender pile Pipe delamination pour slurry construction include: between first row fender pile and second row fender pile nearly dike side use effective width for the sleeve of 2m Valve floral tube delamination pour slurry, to reinforce to the soil body, the sleeve valve floral tube delamination pour slurry is connected " U "-shaped arrangement with embankment, shape At cut-pff wall;Respectively increase " splayed configuration " sleeve valve floral tube layering note that effective width is 3m in two side direction of foundation of main pylon upstream and downstream Slurry, to reinforce to the soil body, " splayed configuration " sleeve valve floral tube overall length of every side is 70m;According to slip casting position geological condition and Construction experience, slip casting effective radius are 50~70cm, the nearly dike side 2m slip casting between first row fender pile and second row fender pile Band two row's injected holes of arrangement, array pitch 1m, horizontal spacing 1m;Three rows note is arranged in two side direction 3m slip casting band of foundation of main pylon upstream and downstream Starch hole, array pitch 1m, horizontal spacing 1m.
107, after completing high pressure phase equilibria and constructing along " U-shaped " the sleeve valve floral tube delamination pour slurry in dike side, big dyke of constructing The binder and crown beam of shield.
The embodiment of the present invention provides a kind of river dyke infiltration method of disposal based on across river Cable stayed Bridge Main Tower foundation construction, packet It includes: the first original slabstone protective layer of side river dike zone of protection of cleaning;After levelling of the land, dike protection platform of constructing, inserting piling is faced Water side steel sheet pile and steel-pipe pile porotective wall;First row fender pile is drilled on the first side Jiang Di using churning driven;In first row It protects after the completion of pile driving construction, in the preset range construction drill and mortar depositing construction platform centered on second row fender pile pile foundation; Second row fender pile is drilled with using churning driven;The first row fender pile closes on the first side Jiang Di, and the second row fender pile faces The nearly foundation of main pylon, and the first row fender pile and the second fender pile correspondence are arranged;Complete second row fender pile After construction, nearly dike side side carries out high pressure phase equilibria and along dike side " U-shaped " between first row fender pile and second row fender pile Valve floral tube delamination pour slurry of tucking inside the sleeve is constructed;After completing high pressure phase equilibria and constructing along " U-shaped " the sleeve valve floral tube delamination pour slurry in dike side, apply The binder and crown beam of work dike protection;Due to having been carried out based on the above method based on king-tower base between foundation of main pylon and river dike The river dyke of plinth seeps disposition, can prevent foundation of main pylon nearby and close on the seepage flow of the side Jiang Di, to ensure to a certain extent Bridge quality safety and dykes and dams it is firm.
In one embodiment of the invention, it is completed in first row fender pile and second row fender pile using drilled pile construction Afterwards, high pressure phase equilibria is carried out in dike side side close between first row fender pile and second row fender pile and tuck inside the sleeve along dike side is " U-shaped " The construction of valve floral tube delamination pour slurry includes: to be drilled with sleeve valve floral tube hole in pre-position, and sleeve valve floral tube should be assigned into drilling Centre;The objects such as mouth geotextiles pack tightly bundle extremely under floral tube, prevent capsule material from entering floral tube.The slip casting pitch of holes of floral tube is 1m, It needs to use rubber tube lock ring after aperture, prevents sundries plug-hole;Perfusion sleeve shell material to aperture, which is overflowed, from bottom to top meets concentration requirement Until virgin pulp liquid, steel sleeve is extracted;After sleeve shell material intensity reaches design, lower slip casting zinc pipe starts to be in the milk;The preliminary stage of grouting, Use thin pulp (or clear water) pressurization open loop;In pressure process, once there is abrupt pressure reduction, grout absorption increases severely, and indicates that oneself " is opened Ring " starts formal slip casting by design proportion after open loop;It is specific to be in the milk using double embolism core pipes.Joined according to each group slip casting Number table requirement, carries out slip casting from bottom hole, every 1~2m is as a slip casting section from bottom to top.By being filled after first pouring into thin pulp when slip casting The principle for entering underflow gradually adjusts the ratio of mud.Slip casting order: necessary one hole of tripping carries out slip casting every time, to prevent to alter Starch phenomenon.
In another embodiment of the present invention, nearly dike side carries out height between first row fender pile and second row fender pile Pressure rotary-spraying grouting includes: to carry out the positioning of swaying-jet-grouting hole unwrapping wire, each hole Unified number, hole location by design requirement spacing on construction axis Subsurface 0.2m is squeezed into stake;It is drilled using PC-150 geological drilling rig, drilling machine is placed into level before drilling, it should be at any time in drilling process Drilling machine Realize, plumbing borehole perpendicularity are checked using horizontal ruler;Cement slurry specific gravity is measured, it is straight to survey out mixing drum Diameter and effective depth calculate every theoretical water consumption and cement consumption;Every water consumption theoretical position paint marks are existed On cylinder inner wall;Water, cement are sequentially added according to the label on cylinder inner wall, mixing time must not be lower than 4 minutes;It is prepared by cement slurry Cheng Hou, PH-5D high spray booth vehicle is in place, to after projected depth under pipe to be sprayed, slurries indices are detected, are started after qualified Corollary equipment including high-pressure hydraulic pump, air compressor machine, blender and slush pump;Various process parameters are adjusted to predefined parameter It is required that starting to spray, start to be promoted by pre-provisioning request speed after slurry is returned in aperture;High pressure water is first sent, then send cement slurry and compression Air, 1~3min of the quiet spray in original place;Scheduled injection pressure and whitewashing amount to be achieved, and aperture is emerged after slurries, is mentioned by preset Rise, number of oscillations and pivot angle, carry out spraying operation from bottom to top, when injection reaches predetermined design height, stopping send water, gas and Mud proposes injection pipe;After pipe to be sprayed mentions design altitude, jet grouting terminates, and then pours into cement slurry again into hole, directly Until slurries no longer sink, aperture is blocked with cement mortar.
In the present embodiment, making a reservation for injection pressure is 37~39MPa;By being used between two rows of drilled piles close to the Changjiang river side Effective width is that the high-pressure jet-grouting of 1m reinforces the soil body, forms cut-pff wall, can prevent layer of sand from leaking.
The high-pressure jet-grouting is in the milk using triple tube swaying-jet-grouting, that is, uses three for conveying water, gas respectively, starching three kinds of media Weight Grouting Pipe, around the high pressure water jet for generating 37~39MPa or so with high-voltage generators such as high-pressure pumps, around one The cylindric air-flow of 0.6~0.8MPa of stock, carries out high pressure water jet and air-flow coaxially sprays punching stratum, forms biggish sky Gap, then separately filled by the slurries that slush pump injection pressure is 0.3~1.0MPa, nozzle makees swing and lifting motion, finally on ground Plate induration is solidified as in layer.
It is understood that often having a certain number of soil particles during swaying-jet-grouting, as a part of slurries edge is shown loving care for Slurry tube wall ground of emerging by the observation to grout can understand soil layer situation in time, judge the substantially effect of swaying-jet-grouting and disconnected Determine Rational Parameters etc., rule of thumb, it is normal phenomenon that grout (inside having grogs, water and slurries) amount, which is less than grouting amount 20%, is surpassed Cross 20% or completely not grout when, should ascertain the reason and take corresponding measure in time.
In the present embodiment, the ratio of mud of mud is prepared no more than 1: 1, can reduce or reduce leakage amount to the greatest extent.
In the present embodiment, as an alternative embodiment, between first row fender pile and second row fender pile nearly dike side into Horizontal high voltage jet grouting further include: during swaying-jet-grouting slurry, monitor slurry temperature whether in predetermined threshold range;If in predetermined threshold It is worth in range, then continues high pressure phase equilibria construction;If stopping spraying not in predetermined threshold range, by the slurry Liquid takes measures to control slurry temperature in predetermined threshold range as waste pulp processing.
In the present embodiment, the crown beam and binder are set at the top of the first row fender pile and second row fender pile, high 2.5m, width 2.5m, the long 164.5m of crown beam on second row fender pile, the long 98.0m of crown beam on first row fender pile, using C40 Reinforced concrete structure;Armored concrete binder is set between two rows of fender piles, sets 1 binder at interval of 6m, amounts to binder 17, the long 12.5m of per pass binder, width 2m, high 1m.The crown beam and binder are carried out using concrete blinding construction operation method, Specific template construction technique is known to those skilled in the art, those skilled in the art can select according to Specific construction situation With and adjustment, just repeat no more.
The river dyke based on across river Cable stayed Bridge Main Tower foundation construction that inventive embodiments provide seeps method of disposal, to oblique across river It draws upstream and downstream each 80m range embankment in bridge main pylon pier position to be reinforced, specifically uses drilled pile+binder+crown beam combination high-pressure rotary-spray The mode of grouting (cut-pff wall) and the sleeve slip casting of valve floral tube (cut-pff wall) carries out anti-seepage reinforcing disposition, is bored using 85 two rows Φ 2.0m Hole stake design.Wherein the second row fender pile close to the first side side Jiang Di amounts to 57, and intermediate 85m range stake spacing is 2.5m, Two sides 77m range stake spacing is 3.5m;First row fender pile close to embankment side is 28 total, and stake spacing is 3.5m;It is two rows of Fender pile stake spacing is 15m.To prevent layer of sand from leaking, effectively width also is being used close to the first side Jiang Di between two rows of drilled piles Degree is that the high pressure phase equilibria of 1m reinforces the soil body, forms cut-pff wall, and between two rows of fender piles, high-pressure rotary-spray Grouting pulls in shore side, effective width to be used to reinforce the soil body for " U-shaped " the sleeve valve floral tube delamination pour slurry of 2m, sleeve valve floral tube layering Range of grouting is connected wall with embankment.It protects stake top interval 6m that 1 armored concrete binder is set, amounts to binder 17, formed Cut-pff wall respectively increases effective width in two side direction of main pylon pier upstream and downstream to guarantee main pylon pier upstream and downstream direction soil stabilization The soil body is reinforced for " splayed configuration " sleeve valve floral tube delamination pour slurry of 3m, cut-pff wall is formed, can act synergistically, effectively prevent Foundation of main pylon nearby and closes on the seepage flow of the side Jiang Di, to ensure the firm of bridge quality safety and dykes and dams to a certain extent.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers It is included within the scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.

Claims (9)

1. a kind of river dyke based on across river Cable stayed Bridge Main Tower foundation construction seeps method of disposal, which is characterized in that
The described method includes: the first original slabstone protective layer of side river dike zone of protection of cleaning;
After levelling of the land, dike protection platform of constructing, inserting piling side steel sheet pile and steel-pipe pile porotective wall near water;
First row fender pile is drilled on the first side Jiang Di using churning driven;
After the completion of first row protects pile driving construction, in the preset range construction drill and note centered on second row fender pile pile foundation Starch operation platform;
Second row fender pile is drilled with using churning driven;The first row fender pile closes on the first side Jiang Di, the second row protection Stake closes on the foundation of main pylon, and the first row fender pile and the second fender pile correspondence are arranged;
After completing second row protection pile driving construction, nearly dike side side carries out high pressure between first row fender pile and second row fender pile " U-shaped " the sleeve valve floral tube delamination pour slurry construction of jet grouting and suitable dike side;
After completing high pressure phase equilibria and constructing along " U-shaped " the sleeve valve floral tube delamination pour slurry in dike side, the binder for dike protection of constructing And crown beam.
2. the method according to claim 1, wherein clearing up the original slabstone protection of the first side river dike zone of protection Layer before comprising steps of
At the foundation of main pylon and the first side river dike dike drop-over, the two-way lower embankment road of each 150m left and right settings of upstream and downstream, road The wide 8m in road road surface, the road surface use the concrete road surface C30, and thickness 20cm, side carries out slope using 1:1 near water, if 2% list Xiang Po, side sets gutter, road top and embankment face Shunping County, bottom and embankment second level platform Shunping County near water;
After the completion of lower embankment road construction, a height of+23.300m of road top mark, road elevation of bottom is+17.000m, is filled The gradient is 10%.
3. the method according to claim 1, wherein the construction dike protection platform is comprising steps of in two rows 170m*25m construction dike protection platform is set within the scope of fender pile, a height of+17.000m of deck roof logo, side uses platform near water 12 meters long steel sheet pile supporting;Width is 12m, long 120m between the first row fender pile and second row fender pile of front and back setting Reinforced concrete bridge deck plate is arranged in range, floorings specification is 8m*2m*0.2m, and platform both ends are poured with lower causeway road joint 20cm thickness C30 concrete is infused, sets wide 30cm, the intercepting ditch of deep 20cm in embankment and platform junction;
The intercepting ditch sets 1% slope from centre toward both sides, and diameter 273mm is buried at both ends, and thick 6mm steel pipe tiltedly wears sidewalk and is discharged into precipitating The pond river Hou Ru;
Operation platform sets 0.5% weathering from embankment side toward river side, and water flow imports the outer gutter of first row fender pile, gutter from It is intermediate to set 1% slope toward both sides, enter river after importing sedimentation basin;
Mud ditch is set respectively between each adjacent studs of first row fender pile and second row fender pile;The mud structure is for being perfused Mud flows into adjacent holes when concrete, then is pumped back in mud pit through mud, to recycle;
Causeway road under operation platform and two sides is connected, mud pit is set in the operation platform two sides.
4. the method according to claim 1, wherein the inserting piling side steel sheet pile and steel-pipe pile porotective wall near water Include: be located near water lateral extent first row drilling pile center away from 4m at using manipulator inserting piling steel sheet pile;The steel sheet pile list Root long 12m, a height of+17.000m of steel sheet pile top mark, steel sheet pile bottom absolute altitude are+3.000m, and steel sheet pile buries 10.6m.
5. according to the method described in claim 4, it is characterized in that, after inserting piling steel sheet pile, the method also includes: in the steel Increase 2HN500*200mm fashioned iron on the outside of sheet pile and double 1200*14mm third steel-pipe pile carries out supporting, the third steel-pipe pile Length is 25m, enters fine sand layer using crawler crane and DZ180 type vibration hammer inserting piling.
6. being put down the method according to claim 1, wherein the drilling platform uses steel-pipe pile Bailey beam structure Platform whole width 12.4m, long 45m, platform top surface absolute altitude+17.000m, with dike protection platform drop-over;The platform girder span For 10.5m, platform base is squeezed into steel-pipe pile using Φ 820mm*10mm, in conjunction with Φ 1200mm*14mm supporting steel-pipe pile, and is being bored Platform reinforcing is carried out with fore shaft steel-pipe pile between hole pile driving construction region and dike protection platform.
7. according to the method described in claim 4, it is characterized in that, between first row fender pile and second row fender pile nearly dike Side carries out high pressure phase equilibria and includes: in first row fender pile and second along " U-shaped " the sleeve valve floral tube delamination pour slurry construction in dike side Nearly dike side uses effective width for the sleeve valve floral tube delamination pour slurry of 2m between row's fender pile, to be reinforced to the soil body, the sleeve Valve floral tube delamination pour slurry is connected " U "-shaped arrangement with embankment, forms cut-pff wall;
Respectively increase " splayed configuration " sleeve valve floral tube delamination pour slurry that effective width is 3m in two side direction of foundation of main pylon upstream and downstream, with right The soil body is reinforced, and " splayed configuration " sleeve valve floral tube overall length of every side is 70m;
According to slip casting position geological condition and construction experience, slip casting effective radius is 50~70cm, in first row fender pile and the Nearly dike side 2m slip casting band arranges two row's injected holes, array pitch 1m, horizontal spacing 1m between two row's fender piles;
Three row's injected holes, array pitch 1m, horizontal spacing 1m are arranged in two side direction 3m slip casting band of foundation of main pylon upstream and downstream.
8. the method according to the description of claim 7 is characterized in that the nearly dike between first row fender pile and second row fender pile Side carries out high pressure phase equilibria
The positioning of swaying-jet-grouting hole unwrapping wire is carried out by design requirement spacing on construction axis, ground is squeezed into each hole Unified number, hole location stake Lower 0.2m;
It is drilled using PC-150 geological drilling rig, drilling machine is placed into level before drilling, should be examined at any time using horizontal ruler in drilling process Look into drilling machine Realize, plumbing borehole perpendicularity;
Cement slurry specific gravity is measured, mixing drum diameter and effective depth are surveyed out, calculates every theoretical water consumption and cement consumption;
By every water consumption theoretical position paint marks on cylinder inner wall;
Water, cement are sequentially added according to the label on cylinder inner wall, mixing time must not be lower than 4 minutes;
It is after the completion of cement slurry preparation, PH-5D high spray booth vehicle is in place, to after projected depth under pipe to be sprayed, slurries items are referred to Mark detection starts the corollary equipment including high-pressure hydraulic pump, air compressor machine, blender and slush pump after qualified;
Various process parameters are adjusted to predefined parameter requirement, start to spray, are started after slurry is returned in aperture by pre-provisioning request speed It is promoted;
High pressure water is first sent, then send cement slurry and compressed air, 1~3min of the quiet spray in original place;
Scheduled injection pressure and whitewashing amount to be achieved, and aperture is emerged after slurries, by it is preset promoted, number of oscillations and pendulum Angle carries out spraying operation from bottom to top, and when injection reaches predetermined design height, water, gas and mud are sent in stopping, proposing injection Pipe;
After pipe to be sprayed mentions design altitude, jet grouting terminates, and then pours into cement slurry again into hole, until slurries no longer under Until heavy, aperture is blocked with cement mortar.
9. according to the method described in claim 8, it is characterized in that, between first row fender pile and second row fender pile nearly dike Side carries out high pressure phase equilibria further include: during swaying-jet-grouting slurry, monitors slurry temperature whether in predetermined threshold range;
If continuing high pressure phase equilibria construction in predetermined threshold range;
If stopping spraying not in predetermined threshold range, using the slurries as waste pulp processing, and take measures to control slurries Temperature is in predetermined threshold range.
CN201910548538.9A 2019-06-24 2019-06-24 A kind of river dyke infiltration method of disposal based on across river Cable stayed Bridge Main Tower foundation construction CN110373999A (en)

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