CN106400807A - Maritime work barge grouting method and device thereof - Google Patents
Maritime work barge grouting method and device thereof Download PDFInfo
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- CN106400807A CN106400807A CN201611048997.3A CN201611048997A CN106400807A CN 106400807 A CN106400807 A CN 106400807A CN 201611048997 A CN201611048997 A CN 201611048997A CN 106400807 A CN106400807 A CN 106400807A
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- hole
- grouting
- barge
- pipe
- drilling
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/06—Placing concrete under water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
Abstract
The invention discloses a maritime work barge routing method. The method comprises the steps that a barge platform is erected on a barge, and a guide hole is formed in the barge platform; an isolation pipe descends to the to-be-drilled position of a maritime work stone foundation bed along the guide hole, and therefore the seawater above the to-be-drilled position is isolated from the surrounding seawater; a drilling tool of a drilling device descends to the isolation pipe, simultaneous casing drilling is used for drilling a riprap layer of the maritime work stone foundation bed at a time, and a casing pipe synchronously descending to the drilling position forms a work hole; a slurry shooting pipe is arranged in the work hole in a descending manner, and a grouting device is used for pouring grouting slurry into a gap of the riprap layer through the slurry shooting pipe. According to the method, the isolation pipe is used for enabling the seawater above the to-be-drilled hole to be isolated from the surrounding seawater, the drilling hole position can be precisely controlled, parameters of grouting liquid can be subject to real-time monitoring and control, the grouting quality and the construction proceed are ensured, the construction efficiency is improved, the use amount of raw materials can be effectively reduced, and cost is saved. In addition, the invention provides a device used for the method.
Description
Technical field
The present invention relates to Hydraulic and Hydro-Power Engineering field, more particularly, to a kind of sea work barge multiple pipe grouting method and its set
Standby.
Background technology
With the fast development of domestic water conservancy construction of hydropower plant, process range, depth, earth formation present complication,
Diversification.In prior art, when the extra large work block ground mass bed crop to port berth is reinforced, frequently with the place of pipe-following drilling
Reason method is directly holed to bedding and grouting, and the port berth that the method processes gravity type box structure has following defect：?
When extra large work block ground mass bed is holed, drilling tool can be affected to drift around it is impossible to guarantee hole in hole position point by seawater fluctuation
The precision of position and the depth of boring, lead to follow-up grouting quality to reduce, slurry amount increases, cost improves, and progress is delayed.
Content of the invention
The purpose of the present invention is exactly the problem in order to overcome above-mentioned prior art to exist, and provides a kind of sea work barge grouting side
The seawater of top hole to be drilled is isolated with surrounding seawater using isolated tube, is accurately controlled drilling hole position, the filling to grouting liquid by method
Starch pressure, injection rate, serum density carries out real-time monitoring and control it is ensured that grouting quality and construction speed, improves efficiency of construction,
Effectively reduce raw material usage amount, cost-effective；Additionally, the present invention also provides a kind of equipment for said method.
In order to realize the above-mentioned purpose of the present invention, one aspect of the present invention provides a kind of sea work barge grouting method, including：
Barge platform is set up on barge, and multiple pilot holes are opened up on barge platform；
Using suspender, isolated tube is divided into along pilot hole to the place hole to be drilled of extra large work block ground mass bed, so that will be hole to be drilled
The seawater of place top and surrounding seawater are isolated；
To be located in isolated tube under the drilling tool of drilling equipment, using pipe-following drilling extra large work block ground mass bed riprap layer once
Become boring, and operation hole is formed by the synchronous sleeve pipe transferring to drill hole；
Divide into Grout-jetting pipe in operation in the hole, via Grout-jetting pipe, grouting material is filled into the seam of riprap layer using provisions for grouting
In gap.
Wherein, the top of described isolated tube protrudes upward in described barge platform, and the bottom of isolated tube is pounded into mud to throwing
Rock layers surface.
Wherein, the internal diameter of described isolated tube is more than the external diameter of described sleeve pipe.
Wherein, described drilling depth is more than or equal to the thickness of riprap layer.
Wherein, described pilot hole internal diameter is more than described isolated tube external diameter.
Wherein, grouting material is filled in the gap of riprap layer and comprises the steps：
After described operation in the hole divides into Grout-jetting pipe, rise and pull out sleeve pipe to the first paragraph top in operation hole, divide into hydraulic pressure plug, even
The pipeline connecing Grout-jetting pipe is in the milk, so that grouting liquid is filled in operation hole and the gap of riprap layer；
After the first paragraph perfusion in operation hole terminates, rise and pull out sleeve pipe to the second segment top in operation hole, continue grouting；
Repeat the above-mentioned step pulling out sleeve pipe and grouting, from the bottom to top grouting material is filled into whole operation in the hole；
After grouting material is filled in whole operation hole, take out hydraulic pressure plug, using grout pipe, the aperture in operation hole is carried out at sealing of hole
Reason.
Wherein, barge platform is set up on barge and opens up pilot hole on barge platform and comprise the steps：
Lay steel plate on the cabin surface of barge, make a part for steel plate stretch out the ship edge of barge, form overhanging platform；
Steel plate is connected to one with barge；
It is stretched flat interval on platform outside and open up multiple pilot holes, to transfer isolated tube to place hole to be drilled along pilot hole.
Wherein, when grouting material being filled in the gap of riprap layer via Grout-jetting pipe using provisions for grouting, also include adopting
The step that grouting automatic monitoring system carries out real-time monitoring and control to strengthening motoring.
Additionally, the present invention also provides a kind of equipment for extra large work barge grouting method as above, including：Ride upon
Barge platform on barge, opens up multiple pilot holes thereon；Suspender and the isolated tube being hung using suspender, isolated tube is along guiding
Hole divides into the place hole to be drilled of extra large work block ground mass bed, so that the seawater above place hole to be drilled is isolated with surrounding seawater；It is arranged on
Drilling equipment on barge platform, its drilling tool is located in isolated tube under being used for, so that using pipe-following drilling in extra large work block ground mass bed
Riprap layer once become boring, and operation hole is formed by the synchronous sleeve pipe transferring to drill hole；It is arranged on barge platform
Drilling equipment, have under be located at the Grout-jetting pipe of operation in the hole, grouting material is filled into via Grout-jetting pipe using provisions for grouting
In the gap of riprap layer.
Wherein, the height of described isolated tube is more than described barge platform to the jackstone layer surface of described sea work block ground mass bed
Vertical height.
Beneficial effects of the present invention embody in the following areas：
1st, the present invention adopts isolated tube to isolate the seawater above place hole to be drilled and surrounding seawater, so that shape in isolated tube
The static hydrostatic region of the relatively extraneous flowing seawater of one-tenth is not so that the fluctuation of extraneous seawater interferes with inside isolated tube.
2nd, it is located under the drilling tool of the present invention in isolated tube and is holed in isolated tube so that being holed hole position and designing hole
Between position, deviation is little, beneficial to the construction of follow-up well cementing, improves the construction period.
3rd, the present invention, according to strata condition and drilling depth, selects suitable drilling tool collocation to use, realizes pipe-following drilling one
Secondary pore-forming, is greatly improved the construction effect of pipe-following drilling, effectively deduction and exemption hole therefore the generation of rate, reduce construction cost it is ensured that
Construction smoothly completes.
4th, the present invention carries out compound grouting according to stratum characteristic in the grouting liquid from different parameters, and Monitoring and Controlling at any time
Each strengthening motoring, it is ensured that grouting quality, effectively reduces raw material usage amount, saves construction cost, reduces construction costs；
5th, the present invention adopts segmentation jam grouting technique, can precisely differentiate the leakage scenarios of construction part earth formation, be
Accurately handling this position well provides manufacture bases.
6th, the barge of the present invention, in operation, can be firmly secured on sea, be easy to hole, cementing operations smooth
Carry out.
Brief description
Fig. 1 is the section of quay wall figure reinforced using the inventive method；
Fig. 2 is that barge fixes schematic diagram；
Fig. 3 is cantilever construction platform plane layout drawing；
Fig. 4 is cantilever construction platform front elevation；
Fig. 5 is cantilever construction platform sectional drawing；
Fig. 6 is the structural representation of tripod；
Fig. 7 is outer round drill-pouring position view；
Fig. 8 is interior round drill-pouring position view；
Fig. 9 is that after inverted trapezoidal region unit stone removes cleaning, upper lower platform and slope pour mould bag schematic diagram；
Figure 10 is interstitial hole drill-pouring position view；
Figure 11 is inside and outside round boring hole position layout drawing；
Figure 12 is interstitial hole boring hole position layout drawing；
Figure 13 is the schematic diagram dividing into guide pipe；
Figure 14 is pipe-following drilling and is in the milk to the schematic diagram at grout hole first paragraph top；
Figure 15 is the schematic diagram being in the milk to grout hole second segment top；
Figure 16 is the schematic diagram being in the milk to whole grout hole；
Figure 17 is the provisions for grouting of the present invention and the sketch of grouting automatic monitoring system connection；
Figure 18 is means for supporting reinforcement steel bar laying schematic diagram；
Figure 19 is that mold-bagged concrete pours schematic diagram；
Figure 20 is the cross-sectional view of isolated tube during well cementing of the present invention, sleeve pipe and Grout-jetting pipe position relationship.
Specific embodiment
One aspect of the present invention provides a kind of sea work barge grouting method, including：
Barge platform is set up on barge, and multiple pilot holes are opened up on barge platform；
Using suspender, isolated tube is divided into along pilot hole to the place hole to be drilled of extra large work block ground mass bed, so that will be hole to be drilled
The seawater of place top and surrounding seawater are isolated；
To be located in isolated tube under the drilling tool of drilling equipment, using pipe-following drilling extra large work block ground mass bed riprap layer once
Become boring, and operation hole is formed by the synchronous sleeve pipe transferring to drill hole；
Divide into Grout-jetting pipe in operation in the hole, via Grout-jetting pipe, grouting material is filled into the gap of riprap layer using provisions for grouting
Interior.
Below, by using the method for the present invention to having as a example port berth crop as shown in Figure 1 carries out strengthening construction,
The barge grouting method of the present invention is described.
Wherein, port berth as shown in Figure 1 is gravity type box structure, i.e. be some above extra large work block ground mass bed 1
Closed square 2, installs the relieving slab 3 of low level on closed square 2, pours into breastwork 4 by concrete on relieving slab 3.This code
Head rear is the rib body block stone of backfill and the stone 6 that cuts into a mountain, and the front rail of bridge type coal grab-unloader is arranged on the breastwork 4 of harbour, rear rail
It is arranged on the track girder being supported by Punching Borehole Cast-in-place Concrete Pile.Bollard 7 is set in front of harbour, the spacing of bollard 7 be 20m～
30m.Harbour leans on ship fender 5 to adopt drum-type rubber fender, and the spacing of rubber fender determines according to actual conditions, such as can be spaced
16.0m.
When reinforcing to this harbour crop, prepare, such as before first carrying out construction：Prepare construction water and electricity consumption, rationally
Arrangement mixing plant, wherein, the present invention adopts concentrated compactness to supply slurry mode, using sending stock pump to carry out sending slurry, arranges PVC pipeline edge
Quayside, along straight laying, arranges a valve at spacing intervals, conveniently uses for slurry (as 30m), and in view of construction axis
Longer, slurry supply pump, when being unsatisfactory for requiring situation for slurry, increases slurries pipeline in flow inlet road middle setting one slurries terminal
Interior slurry pressure, to prevent slurries precipitation from causing plugging；Then carry out setting up of operation platform.
During construction, need to be put down using two kinds that barge operation platform and the steel construction cantilever construction platform on harbour combine
Platform, during arrangement, barge operation platform and cantilever construction platform can be carried out simultaneously, also can successively carry out.
Wherein, before arrangement barge operation platform, barge 8 need to be fixed on (as shown in Figure 2) at port berth, it includes
Following steps：
Backfill sand material in the load-carrying cabin of barge 8, to increase the stability of barge 8 as counterweight；
By four positioning of anchors and cross-brace, barge 8 is fixed at port berth.
Wherein, by four positioning of anchors and cross-brace, barge 8 is fixed at port berth comprises the steps：
A ship anchor 10 is disposed respectively at the forward andor aft of the every side of barge 8；
Two ship anchors of the close harbour side of barge 8 are tied up on a pair of bollard of harbour respectively, laterally to lead
Draw support barge；
Barge 8 is thrown remote anchor respectively and sunk and be held away from the seabed of harbour away from two ship anchors of harbour side, with
Just utilize anchor cable in seabed oblique tractive barge 8.
Laterally pulled by four positioning of anchors and a pair of hawser, barge 8 stability across the sea can be increased further.
Barge 8 is fixed on after port berth, barge platform is set up on barge 8, comprises the steps：
First, lay steel plate on the load-carrying cabin surface of barge 8, make a part for steel plate stretch out the ship edge of barge, so that
The steel plate stretching out ship along part forms overhanging platform 12；
Then, steel plate is connected to one with barge 8 it is preferred that steel plate is welded together with barge 8；
Finally, the multiple pilot holes 13 opening up at certain intervals for guiding and position are stretched flat outside on platform 12, multiple lead
It is that diameter is identical and circular hole that vertically run through steel plate to hole 13.
Wherein, the present invention arranges overhanging platform 12 on barge, you can for the construction surface as staff, may be used again
Using as the follow-up preformed hole that the construction of block ground mass bed well cementing is guided and positioned.It is drilled with by being stretched flat outside on platform 12
Pilot hole, it is to avoid the damage that prior art is holed on barge deck and deck is caused.
Wherein, when barge 8 being fixed on harbour, push rod structure side is also utilized to push up, to control hole position distance it is ensured that hole position
Accurately.Specifically, push rod structure adopts steel frame construction, and the side of push rod structure is welded on barge operation platform, push rod structure
Opposite side be supported on quay side wall, the top of push rod structure weld a pulley, on barge is with the fluctuation of seawater
During lower floating, the pulley on push rod structure top can slide up and down along quay side wall, accordingly, on quay side wall and pulley
At the corresponding position of installation site, process a slideway sliding up and down for pulley with channel-section steel, enable pulley easily
Quay side wall slides up and down.
Wherein, as needed determine adjacent pilot holes spacing, when construction guidance hole, the construction surface on barge platform its
It all carries out security protection using portable guardrail 9 in position near water, determines workmen's safety, and arranges special messenger according to sea
The tide is flowing and ebbing situation, the elastic at any time hawser being connected near quay side two anchor cable, prevent hawser from breaking and hurt sb.'s feelings.
During the barge operation of the present invention, the cantilever construction platform being arranged on the line of wharf apron need to be coordinated to carry out operation, its
In, cantilever construction platform includes：Longitudinally it is sequentially arranged along harbour and the row's tripod 14 perpendicular to wharf apron line, for making
For stress frame；By the crossbeam 15 together of adjacent two tripod lateral connection in row's tripod 14；It is laid on a row
Sheet material 16 on tripod 14；It is implanted in a pair of dowel 17 of each tripod 14 rear end both sides；Corresponding with each tripod 14
Dispose and the U-shaped ring 18 that is fixedly connected with a pair of dowel 17 of this tripod 14 both sides of its two ends.
Comprise the steps in the above-mentioned cantilever construction platform of arrangement on the bank of harbour：
Some tripods are welded into by H profile steel, so that as stress frame during construction, some tripods are along harbour longitudinally
Perpendicular to wharf apron line arrangement, spacing 1.5m, stretch into wharf apron line 1.6m, cantilever 4.8m；
In some tripod horizontally set two row's crossbeams, with will pass through crossbeam, some tripods are linked together (plane
Layout drawing is as shown in figure 3, this floor plan is also the top view of front elevation shown in Fig. 4), crossbeam adopts 20# channel-section steel and triangle
Frame full weld；
Laying sheet material (plank as 4cm is thick) above the tripod linking together, layout drawing refers to Fig. 3-Fig. 6)；
Adopt micro-expansion cement bar planting 20 in the rear anchor point of each tripod 14, bar planting away from frontal line 1.1m～1.2m, with
Support triangle frame；
At the position of rear anchor point, respectively an anchor point is set in each tripod rear end both sides, and implants a pair of dowel
17, dowel adopts two grades of hot rolling ribbed steel bar Φ 28mm, implants dowel depth 1000mm, exposes the part of 200mm and adopts Q235
The U-shaped ring left-hand thread that round steel Φ 28mm makes is in the rear end (as shown in Figure 6) of tripod.
In addition, the guard rail 19 of border on the sea platform periphery setting space 2m, the high 1.5m in cantilever construction platform, and with protecting
Net will be good for all for operation platform skirt, by arranging mobile protective hurdle it is ensured that the construction of staff is pacified in operation platform forward position
Entirely.
Wherein, during construction, tripod carries out blanking, during welding, welding position according to default drawing size and angle
Weld seam is full, using foot welding height K>The angle welding of 8.0mm.Each tripod enters after completing under the cooperation of 25T crane
Row is in place, weld U-shaped ring, the step of upper dowel.
After operation platform is set up finishing, extra large work block ground mass bed is holed and grouting treatment, and in process
Before, the situation of extra large work block ground mass bed is felt, so that follow-up boring and grouting treatment can be smoothed out.And,
In a period of strengthening construction is carried out to extra large work block ground mass bed, protect in wharf apron and multiple sedimentation deformation observations are set near wheel bank
Point, adjacent sedimentation deformation observes dot spacing 27m.Construction period is monitored daily, to arrange once noting abnormalities to take in time
Apply.
Extra large work block ground mass bed is holed and grouting treatment is included to the outer round 22 away from harbour, in harbour
Round 23, be located at interstitial hole 24 between outer round 22 and interior round 23 holed respectively and grouting treatment step, wherein,
During to extra large work block stone subgrade reinforcing, carry out by following sequence of construction：First with barge platform to extra large work block ground mass
Bed carries out boring and the grouting treatment (as shown in Figure 7) of outer round, then using cantilever construction platform, extra large work block ground mass bed is entered
The boring of round and grouting treatment (as shown in Figure 8) in row, after external round and interior round grouting treatment, to extra large work block ground mass
Bed top layer 21 is excavated, and pours processs (as shown in Figure 9) to what the block stone layer top after excavating carried out mold-bagged concrete, finally sharp
With barge platform, extra large work block ground mass bed is carried out with boring and the grouting treatment (as shown in Figure 10) of interstitial hole, arrangement of boring holes of respectively holing
Figure is as shown in Figure 11, Figure 12.
During reinforcing, well cementing is carried out using first external round, interior round, excavates block stone surface layer of subgrade bed afterwards, right after excavation
Excavate the region being formed and pour mold-bagged concrete, so that the working procedure that disturbance block stone in top is filled again can ensure block ground mass bed
The comprehensive filling of reinforcing body, meet detail design to require.Wherein, one can be formed on block ground mass bed surface using mold-bagged concrete
Individual containment vessel 25, the region that makes entirely to be in the milk forms an entirety and prevents alluvion, improves consolidation effect.
Wherein, extra large work block ground mass bed is being holed and during grouting treatment, using isolated tube by above place hole to be drilled
Seawater is isolated with surrounding seawater, during boring, no to flow between the seawater above place hole to be drilled and the surrounding seawater outside isolated tube
Dynamic.That is, form the static hydrostatic region of relatively extraneous flowing seawater in isolated tube, the fluctuation of extraneous seawater does not interfere with
Inside isolated tube, when drilling tool is in isolated tube internal drilling, the hole position holed will not be affected because of the fluctuation of seawater, thus reducing brill
Deviation between hole hole position and design hole position, beneficial to the construction of follow-up well cementing, improves the construction period, greatly avoids prior art
In directly pipe-following drilling boring when hole position deviation is big, repeatedly need to adjust drilling tool and waste plenty of time, impact construction period situation
Generation.
Preferably, the present invention adopts isolated tube that with surrounding seawater isolation, the seawater above place hole to be drilled is included following walking
Suddenly：
The hole position at place hole to be drilled before perforate, is accurately determined using total powerstation；
Select and determine the position of a corresponding pilot hole on the overhanging platform of barge platform according to described hole position；
Using suspender, isolated tube is transferred downwards along the pilot hole determining position, until isolated tube is divided into extra large work
The place hole to be drilled of block ground mass bed, makes the seawater above place hole to be drilled isolate with surrounding seawater.
Preferably, the height of the isolated tube divided into is more than the vertical of the jackstone layer surface of the extremely extra large work block ground mass bed of barge platform
Highly, i.e. the bottom that should meet isolated tube pounds that isolated tube top can be to extra large work block ground mass bed jackstone layer surface into mud
On stretch out in the requirement of overhanging platform pilot hole one segment distance, and the height of isolated tube should be by barge with water level during seawater fluctuation
The factor of difference is taken into account, and, when designing, the radius of pilot hole should be made to be more than the radius of isolated tube, to float downward on barge
Isolated tube will not be extracted from hole to be drilled during dynamic or left and right fluctuation.
After on transferring isolated tube to extra large work block ground mass bed, isolation bottom of the tube is placed through mud and the coal on bedding top
Grieshoch (that is, isolation bottom of the tube is by the adjacent block stone around place hole to be drilled between being fixed on the adjacent block stone of rubble-mound foundation
Clamp and maintain static), isolated tube top passes through current pilot hole and is oppositely oriented hole and protrudes upward a part, in barge ripple
When dynamic, isolated tube stands in all the time and maintains static at the hole position at place hole to be drilled, then using barge platform, extra large work block ground mass bed is entered
The boring of the outer round of row and grouting treatment：
To be located in isolated tube under the drilling tool of drilling equipment, using pipe-following drilling extra large work block ground mass bed riprap layer once
Become boring, and grout hole is formed by the synchronous sleeve pipe transferring to drill hole；
Divide into Grout-jetting pipe in grouting in the hole, via Grout-jetting pipe, grouting material is filled into the gap of riprap layer using provisions for grouting
Interior.
Wherein, before isolated tube divided into by the drilling tool of drilling equipment, boring hole position need to be treated and carry out repetition measurement, divide in drilling rod
When, a repetition measurement is carried out again for hole position point with drilling rod, the errorless rear drilling tool of result starts drilling construction.
Wherein, for the ease of pipe-following drilling, the internal diameter of the isolated tube 27 of the present invention is more than the sleeve pipe 28 divided in it
External diameter, and the internal diameter of sleeve pipe 28 is more than the external diameter of Grout-jetting pipe 29, during well cementing operation, isolated tube, sleeve pipe, the position of Grout-jetting pipe
Put relation as shown in figure 20.
When holing to inside and outside round, using all-hydraulic downhole drill pipe-following drilling method drilling construction, in isolated tube
Inside divide into drilling tool boring, pipe-following drilling, after being drilled into design hole depth, segmentation jam is in the milk from bottom to top.Boring depth with
On the basis of drilling riprap layer, wherein, as shown in Figure 13-Figure 16, the construction of grout hole should be divided well cementing process by grouting procedure
Sequence segmentation is carried out.When carrying out bore operation, Unified number, and the construction order in dated each hole are answered in all borings, below, retouch in detail
State well cementing process：
1st, after Location measurement positioning hole to be drilled is ready, divide into isolated tube to the jackstone layer surface of block ground mass bed, such as Figure 13
Shown.
2nd, using down-the-hole drill, in isolated tube, pipe-following drilling forms grout hole to designing hole depth, synchronization decentralization sleeve pipe.
3rd, down-the-hole drill rises and pulls out drilling rod, and the grouting in the hole being formed in sleeve pipe divides into Grout-jetting pipe, then rises and pulls out sleeve pipe to grouting
Hole first paragraph top, divides into hydraulic pressure plug, and the pipeline connecting Grout-jetting pipe is in the milk, so that grouting liquid is filled into grout hole and jackstone
In the gap of layer, as shown in figure 14.
4th, after the first paragraph perfusion of grout hole terminates, rise and pull out sleeve pipe to the second segment top of grout hole, continue grouting, such as scheme
Shown in 15.
5th, after perfusion second segment terminates, continued to pull out sleeve pipe, irrigated the 3rd section ... ..., repeat above-mentioned and pull out sleeve pipe and filling
The step of slurry, segmentation jam grouting from the bottom to top, until grouting material is filled into whole grouting in the hole.
6th, after whole grout hole fills grouting material, take out hydraulic pressure plug, using grout pipe, 0.5 is injected to the aperture of grout hole:1
Cement mortar carry out sealing pores, rise and pull out grout pipe and orifice tube, the grouting of whole hole terminates, as shown in figure 16.
Wherein, using pipe-following drilling equipment needed thereby can adopt prior art equipment, and the method for pipe-following drilling with existing
Technology is identical using method, and here is not described to its process.
It should be noted that when block ground mass bed is carried out with the well cementing of outer round and interior round, all can adopt upper
That states divides into isolated tube the method dividing into drilling tool pipe-following drilling in isolated tube.
During carrying out well cementing construction using barge operation platform, the flux and reflux of seawater is simply made to barge
Become dipping and heaving, increase or decrease isolated tube relative to the distance in seawater, boring and the filling carrying out in isolated tube can't be affected
Slurry construction, it is ensured that boring hole position will not offset, improves drilling efficiency and strengthening construction efficiency, reduction of erection time, reduces construction cost.
In grouting, the length that each section of grout hole can determine according to the actual conditions of design hole depth, in grouting, fills
The maximum pressure of slurry is not more than 0.7MPa.Preferably, via Grout-jetting pipe, grouting material is filled into riprap layer using provisions for grouting
When in gap, also include carrying out real-time monitoring using grouting automatic monitoring system to grouting pressure, injection rate, serum density
And the step controlling.
Specifically, provisions for grouting can adopt structure as shown in figure 17, including：Mixer 30 with slurry；With stirring with slurry
The flow inlet 31 that machine 30 connects；The grouting pump 33 being connected with mixer 30 with slurry；The pulp-inlet pipe 34 being connected with grouting pump 33 with return
Slurry pipe 41；For the Grout-jetting pipe 29 being placed in sleeve pipe；For the packer 40 being connected Grout-jetting pipe 29 with pulp-inlet pipe 34；With join
Starch the grouting automatic monitoring system that mixer 30 and grouting pump 33 connect respectively；And, it is arranged on the close of return pipe 41
The high voltage adjusting gate valve 37 for adjusting grouting pressure at grout hole；Be arranged on pulp-inlet pipe 34 or Grout-jetting pipe 29 for preventing
Only the grouting liquid in Grout-jetting pipe flows back to the check gate valve 38 of pulp-inlet pipe.The Grout-jetting pipe being in the milk can adopt prior art
Sleeving valve tube assembly.
Wherein, grouting automatic monitoring system includes：It is arranged on the pressure at the aperture positioned at grout hole of pulp-inlet pipe 34
Power table 35 and pressure sensor 36；It is arranged on the pressure gauge 43 at grouting pump 33 (to arrange between each pressure gauge and pipeline every slurry dress
Put)；It is arranged on the flow sensor 32 between grouting pump 33 and mixer with slurry 30；It is arranged on the detection drilling depth on drilling tool
Displacement transducer 44；It is connected respectively with pressure sensor 36, flow sensor 32, mixer with slurry 30, displacement transducer 44
Grouting automatic recorder 42, for real-time monitoring and control are carried out to pressure during grouting, injection rate, the density of grouting liquid, flow etc.
System.
In filling process, if grouting pressure reaches 0.7MPa, injection rate is not more than 2L/min, continues perfusion 20min.
This ending standard is applied to inside and outside round bottom grout compartment (except aperture section) and interstitial hole grout compartment, and inside and outside round aperture section is noted
During slurry, aperture is returned slurry and be can be used as ending standard.In grout hole sealing of hole, " mechanical mud jacking method of pore sealing " or " pressure can be adopted
Grouting method of pore sealing ".It is 0.5 that sealing material selects the ratio of mud:1 cement grout.
Wherein, the grouting automatic recorder 42 of the present invention selects GMS1-4 type (pressure, injection rate) grouting automatic recording instrument, this note
Record instrument can monitor 8 sets of provisions for groutings, 64 (kind) dissimilar sensors simultaneously, also can carry out consolidation grouting simultaneously, and curtain fills
Slurry, joint grouting, rockfill grouting, super-pressure is in the milk (more than 10MPa), and big flow is in the milk (more than 100L/min), chemical grouting
Etc. multiple grouting methods.Field operation individual data acquisition, supports that the data of multiple stage computers collection merges automatically, in collection grouting number
According to while can show various parameters in filling process, record and curve in real time, and carry out industry data to arrange in intelligence, make filling
The data of slurry collection in worksite automatically generates the various curves being in the milk in specification, form data Analysis on Results chart.Grouting is automatically
Recorder possesses powerful network support function (C/S structure), and a server can gather multiple all-in-one clients eventually simultaneously
End data, is easy to the data that field engineer plans as a whole monitoring each working face grouting construction process of whole engineering, grouting record
Database has encryption function, and operating personnel cannot change original record it can be ensured that the authenticity of firsthand information.
During construction, easy LAN can be installed at the construction field (site), facilitate management, owner to fill in LAN monitor in real time
Slurry construction data (can also in Internet remote monitor in real time), can be directly monitored by multiple filling processes, control often
One filling process is carried out by predetermined formula, and can automatically generate all statistical report forms and result map by code requirement.
The parameter of the grouting automatic monitoring system monitoring of the present invention includes grouting pressure, injection rate, ground lift value.System
The data of output includes average grouting pressure, maximum grouting pressure, injection rate, accumulative injection slurry amount, accumulative injection ash quantity, grouting
Intensity level (GIN) etc., the curve of output includes grouting pressure time graph, injection rate time graph, accumulative cement injecting amount
6 kinds of relation curves such as time graph, GIN curve, the form of output includes be in the milk record sheet, packer permeability test record sheet.
Wherein, the grouting pressure of each hole section, injection rate, accumulative cement injecting amount and GIN value are shown in grouting automatic recorder in real time
On 42 computer screens, in real time each hole section of reflection is in the milk the record form of overall process and curve, can be had access at any time or
Print.According to the information being obtained, construction technical staff, supervisor can carry out to the filling process of a hole section checking,
Analyze, judge decision-making, and by telephone for special use, the operation of construction unit is commanded, thus greatly enhancing site technology
The direct controling power to grouting operation for the personnel, is effectively guaranteed the quality of grouting works.
Additionally, also using grouting data handling system, it is connected and supports the use with automatic monitoring system of being in the milk, by being in the milk
The each item data of automatic monitoring system acquisition and recording, more automatically proceed to data handling system and carry out statistical calculation, to directly generate
Meet a complete set of outcome table of code requirement, unit cement injecting amount frequency curve, composite profile etc. so that whole filling process more
Transparent, directly perceived.
Wherein, affected by project water price, geological conditions, the grouting liquid of common match ratio is in extra large work block stone subgrade reinforcing work
Do not play great role in journey, can not meet construction quality and require, therefore, the result of the test made according to field test room with
And the analysis to result of the test, it is irrigated using mixed stability grouting liquid.
The compound grouting liquid adopting in filling process includes：Cement mortar and additive.The cement grade that cement mortar adopts
42.5# must not be less than, such as using common 42.5# silicate bulk cement.In view of the corrosion to cement for the seawater, in cement grout
Middle interpolation additive, additive includes BQ-8 and is combined closely knit wear-resistant preservative, and it is close by ground slag, silica flour, silicon ash, chemistry
Real agent etc. is composited, and adds in cement concrete and can reduce temperature rise, improves service behaviour, increases later strength, can improve concrete
Internal structure, increases the density of concrete, improves durability and the corrosion resistance of concrete, the erosion of sulfate, suppression in suppression seawater
Concrete alkali-aggregate reaction processed, increases wear-resistant, cracking resistance, raising antiseepage grade and anti-freezing property, increases consolidation effect.
Further, it is also possible to need to mix following one or more admixture in cement grout according to grouting：
A, sand：From scleroid natural sand or artificial sand, particle diameter is not preferably greater than 2.5mm, and modulus of fineness is not preferably greater than
2.0, SO3 contents are preferably less than 1%, and clay content is not preferably greater than 3%, and content of organics is not preferably greater than 3%；
B, bentonite：Meet the bentonite of II grade and above standard, fineness requirement is crossed 0.074mm and tailed over≤4.0%.
C, flyash：The cement simultaneously using should not be coarser than from selected flyash, loss on ignition is preferably less than 8%, SO3 and contains
Amount preferably less than 3%；
D, other admixture.
Further, can need to mix in cement grout in addition to BQ-8 is combined closely knit wear-resistant preservative according to grouting
One or more of following additive：
A, accelerator：Waterglass (sodium metasilicate), calcium chloride, triethanolamine etc.；
B, water reducer：Naphthalene series high-efficiency water-reducing agent, lignin sulfonate water reducer etc.；
C, stabilizer：Bentonite and other highly plastic clay etc.；
D, tackifier：Hydroxyethyl cellulose HEC；
E, underwater concrete do not isolate additive.
Wherein, if adding additive in cement mortar, all additives are all can be dissolved in water should with aqueous solution state plus
Enter.
Preferably, the ratio of mud of the grouting liquid that the present invention adopts in construction early stage is 0.8:1, now grouting liquid component include
Slurries are poured water, cement, flyash, preservative, and each component proportion is poured water for stable slurry：Cement：Flyash：Preservative=
1.05：1：0.3：0.04, the intensity requirement of this grouting liquid meets the M10 of design requirement.In subsequent construction slurries according to circumstances
Mixed With Admixture, for example, add tackifier hydroxyethyl cellulose HEC and/or BQ-8 to be combined closely knit wear-resistant preservative and/or water glass
Glass, tackifier have good water-retaining property, can significantly reduce the bleeding of slurries, can be good at improving large fluidity slurries
Anti- isolation ability, BQ-8 is combined closely knit wear-resistant preservative and can improve durability and corrosion resistance, sulfate in suppression seawater
Erosion, increase wear-resistant, cracking resistance, improve antiseepage grade and anti-freezing property, increase consolidation effect, when waterglass can accelerate rapid hardening
Between.Preferably, for improving grouting effect, preferably improve the intensity of grouting liquid it is ensured that grouting liquid spreads within the specific limits, after
Increase is used 0.6 by continuous grouting liquid proportioning:1 and 0.5:1 slurries, and according in the hole plasma volume situation, can by dense to dilute or
By dilute to dense perfusion.
During perfusion grouting liquid, various special circumstances can be run into, when running into following special circumstances, press respectively such as
Lower method is processed：
(1) cause, in filling process, interruption of being in the milk for a long time for some reason, in have no progeny at once with clear water rinse grouting hole section, just
After often, cleaning bottom of hole fills again again.
(2) in filling process, such as lift, step-down, current limliting can be taken to process, it is invalid to process, use dense grouting liquid instead and fill
Note, then, treats that coalescence cleaning bottom of hole fills again.
(3) collapse hole section is processed：When boring runs into collapse hole section, be drilled into hole termination depth, under enter drilling rod to bottom hole, use big flow
Water punching, when having backwater, to returning clear water；When not returning clear water, circulating time is not less than 30min.Then rush uninterrupted
In the case of hole, continuous pouring stability slurries, terminate to grouting.
(4) big consumption slurry hole section is processed：At the end of meeting a large amount of midges and be difficult to as grout compartment, take first low pressure, underflow,
The measures such as current limliting, limitation, intermittent grouting；Appropriate accelerator is filled if necessary in slurries；Treat solidifying or fill admixture in slurries,
As fine sand etc..Cleaning bottom of hole is also answered to fill again up to normal termination after treatment.
(5) slurry hole position, hole section process are not being eaten：As grout compartment or grout hole do not eat slurry, take first and increase stressed arranging
Apply to process, necessity in the case of can be suitable be encrypted in this hole portion position.
(6) the occurrence of run into booster in grouting works, is first shut off grouting pump, time-out recorder ascertains the reason,
Connect immediately and be in the milk with new grouting high-voltage tube.
After grouting terminates, for guaranteeing construction quality, grouting quality is detected.
Wherein, after the completion of outer round and interior round are constructed, the block stone layer thick to the 1.5m on block ground mass bed surface is opened
Dig, and pour mold-bagged concrete (concrete grade is C20) on whole block ground mass bed top, reach some strength in concrete
Afterwards, interstitial hole is drilled with using geological core rig, and interstitial hole is carried out with aperture jam, complete opening pressure grouting.The brill of interstitial hole
Enter and be also adopted by above-mentioned first dividing into isolated tube and then divide into the boring of drilling tool pipe-following drilling, grouting in isolated tube with filling process
Method, here is not described.
Wherein, when block ground mass bed surface is carried out with dovetail groove excavation, based on hand excavation, supplemented by machinery.Before construction,
First detection under water is carried out by diver to bedding, and measure the mud face absolute altitude situation of cut-back region, feel and complete rear and carry out water
The cleaning of lower block of stone.
Block ground mass bed surface major part is coated with one layer of cinder, before the cleaning of block stone, first will be dry for cinder cleaning with air compressor machine
Only and carry out the labor cleaning of block stone after exposing bedding block stone again.Block stone sled in bedding surface is first loosened by diver with spade, so
Afterwards block stone is carried to by the region of mechanical equivalent of light excavation by the string bag or other handbarrows.In case of relatively large stone manually cannot be carried
, excavated using little grab bucket dredger (as 2.5m3 grab bucket dredger), excavate before by diver the position to boulder
Put and positioned, during mechanical equivalent of light excavation, diver must debark avoidance.
In view of mechanical equivalent of light excavation region from front toe farther out, the impact stable to harbour is less, underwater excavation block stone quantities
Greatly, need the larger dredger of mining ability, this area is excavated using toothed 4m3 grab boat.Grasp tide for real-time
Position situation, arranges water gauge on quayside.According to actual tidal level, struggle against under being controlled by reference mark on the steel wire rope on suspension bucket
Depth.Excavation in layers is carried out, every thickness degree 0.5m.Grab boat excavates toward sea side from bank side.In digging process, born by special messenger
Duty measures the absolute altitude in bedding face under water, has dug the absolute altitude situation that survey crew after a layer checks whole excavation area, is excavated to last
When one layer, strictly control the lower depth that struggles against it is ensured that ultra-deep controls within 0.3m, ultra-wide controls within 0.5m, such as forward position toe
Place's ultra-deep ultra-wide is excessive, carries out in time to mark and carry out mending throwing by dredger and extremely designs sideline.
After excavating dovetail groove, following quality requirement to be met：
(1) plan-position excavated should meet design requirement, and cross dimensions is no less than design code；
(2) average ultra-deep tolerance 0.3m；Average ultra-wide, overlength tolerance 0.5m.
After wharf apron bedding upper surface is excavated, in the region of the dovetail groove being formed laying mold-bagged concrete 25, laying
When, the overall dimension of every mould bag is determined according to the fabric width of geotextile, vertically and horizontally shrinkage factor and design requirement, and reserved contraction
Amount.Preferably, the mould bag that the mold-bagged concrete of the present invention adopts is the long wire feed mechanism cloth of 230g/m2.Consider the width of geotextile
Wide, the vertically and horizontally requirement every mould bag of determination such as shrinkage factor, preformed hole (fixing hole reserved for pressure grouting) setting overall chi
Very little, and reserved amount of contraction, the longitudinal contraction rate about 1% of irrigation rear mold bagging, lateral shrinkage is about 5%.
Mould bag lays using land making means for supporting reinforcement steel bar colligation mould bag, makes after machining using crane to sinking under water
Put, diver coordinates crane by mould bag along harbour direction under water, from consolidation by grouting area side, position, straight along excavated section
Laying concrete mould bag.Mould bag layout drawing is as shown in Figure 18, Figure 19.
The laying of mould bag comprises the following steps that：
1) rubble, coal ash and the sediment on bedding surface, removing surface after the completion of surface layer of subgrade bed excavates, is cleared up with giant
Start to divide into mould bag, casting concrete after clean.
2) spiral adopting Ф 16 makes mould bag bracing frame (also as mould bag ballast), passes through No. 20 iron wires by land
The mould having customized bag is fixed together with means for supporting reinforcement steel bar colligation, interval 30cm colligation together, makes means for supporting reinforcement steel bar and mould bag
Form a firmly entirety.
3) adopt 25t crane lifting means for supporting reinforcement steel bar and mould bag combination, design attitude slowly divided into seawater,
When each reinforcement bar support hold mode bag sinks, mark is carried out on harbour face, during sinking, notes sinking control speed.
4) diver coordinates crane means for supporting reinforcement steel bar to be adjusted position under water, breaks according to the standard side slope after excavating
Face carries out positioning and lays.
5) before concreting, the rubber flexible conduit 26 of casting concrete is inserted mould bag sack by diver, and colligation is tight
Gu, carry out and prepare before beating ash and check work.
6) after the completion of every width mould bag pours, when dividing into next width mould bag it is necessary on laminating, width mould bag is not less than 30cm, protects
Demonstrate,prove and do not interspace between adjacent 2 width mould bags.
During underwater mould bag concreting, non-dispersible underwater concrete mainly fills flocculant, and increases Binder Materials
Consumption.Non-dispersible underwater concrete can reach concrete placed under water and do not isolate, and can Self-leveling self-compaction, be molded under water
Concrete quality is good.Underwater mould bag concrete adopts commerical ready-mixed concrete, and intensity is C20, and concrete slump controls in 180-
Between 220mm.
Underwater mould bag concrete is poured using concrete mixer, and concrete mixer is arranged in harbour and unloads collier and send outside machine
Side, delivers to wharf apron by pump line.It is considered to casting position leaving wharf top surface distance factor, underwater portion during casting concrete
Conduit be flexible pipe connect, be beneficial to during underwater casting adjust in place.
No offset in determination mould bag, after the completion of live preparation, will be pre- for slotting for the hose port of concrete pump people by diver
Box out, extend in mould bag, after fastening, i.e. start conveying concrete perfusion.
Pour mold-bagged concrete and adopt order below：First pour by upper mounting plate as shown in figure 18, then pour lower flat
Platform, finally pours slope section, it is to avoid under slope section concrete gravity, and mould bag is subjected to displacement.
During casting concrete, first the preformed hole from side is irrigated, and starts to irrigate from reserved filling concrete mouth
Concrete, slowly pours, until pouring to mold-bagged concrete tip position, 1 sewing whole filling of interlayer unit is completed to mix
After solidifying soil, move to next sewing interlayer preformed hole and be irrigated.
Perfusion is poured jointly by two divers, and a people moves pump line, and simultaneously whether running check concrete goes out for people's leveling
Now isolation or excess, checks that whether mould bag and mould bag frame get loose displacement etc., also need to check whether perfusion scope fills real simultaneously.Diving
Member passes through draw cord, and transmission starts and stops the information of concrete perfusion, and the support staff on diving boat informs existing immediately
Field builder, builder commands pump truck to start by intercom or stops.
After irrigating what a sewing interlayer unit, command pump truck to stop by commander by intercom, unclamp the perfusion of mould bag
Sack jag, fastens rapidly perfusion sack after extracting intrusion pipe out, delivery spout shifting is inserted to next sewing interlayer sack simultaneously and enters
Row filling concrete.
In mould bag casting process and after the completion of concrete initial set, by the situation of diver's inspection mould bag, have or not mould bag and rise brokenly
Or damage, if any, by diver, the concrete in damaged mould bag is taken out, more damaged mould bag is removed, again lay complete no
The mould bag damaging, casting concrete again.
Additionally, the present invention also provides a kind of equipment for extra large work barge grouting method as mentioned above, including：Ride upon and refute
Barge platform on ship, opens up multiple pilot holes thereon；Suspender and the isolated tube being hung using suspender, isolated tube is along pilot hole
Divide into the place hole to be drilled of extra large work block ground mass bed, so that the seawater above place hole to be drilled is isolated with surrounding seawater；It is arranged on and refute
Drilling equipment on ship platform, its drilling tool is located in isolated tube under being used for, so that using pipe-following drilling in extra large work block ground mass bed
Riprap layer once becomes boring, and forms operation hole by the synchronous sleeve pipe transferring to drill hole；It is arranged on the brill on barge platform
Aperture apparatus, have under be located at the Grout-jetting pipe of operation in the hole, via Grout-jetting pipe, grouting material is filled into throwing using provisions for grouting
In the gap of rock layers.
Wherein, the height of described isolated tube is more than the vertical of the jackstone layer surface of the extremely described extra large work block ground mass bed of barge platform
Highly.Preferably, the height of isolated tube is more than barge when being located at peak level, the riprap layer of barge platform to extra large work block ground mass bed
The vertical height on surface.
Wherein, described barge platform includes：It is laid on barge cabin surface and the steel plate being connected to one with barge,
A part for steel plate stretches out the ship edge of barge, forms overhanging platform；Wherein, it is stretched flat interval on platform outside to open up for guiding and determining
Multiple pilot holes of position.
Wherein, the internal diameter of isolated tube is more than the external diameter of sleeve pipe, and the internal diameter of pilot hole is more than the external diameter of isolated tube.
Wherein, provisions for grouting includes：Mixer 30 with slurry；The flow inlet 31 being connected with mixer 30 with slurry；Stir with slurry
Mix the grouting pump 33 of machine 30 connection；Pulp-inlet pipe 34 and the return pipe 41 being connected with grouting pump 33；For being placed in penetrating in sleeve pipe
Slurry pipe 29；For the packer 40 being connected Grout-jetting pipe 29 with pulp-inlet pipe 34；Connect respectively with mixer 30 with slurry and grouting pump 33
The grouting automatic monitoring system connecing；It is connected and matching used grouting data handling system with grouting automatic monitoring system；
And, it is arranged on the high voltage adjusting gate valve 37 for adjusting grouting pressure at the close grout hole of return pipe 41；Be arranged on into
Slurry pipe 34 or Grout-jetting pipe 29 on for preventing the grouting liquid in Grout-jetting pipe from flowing back to the check gate valve 38 of pulp-inlet pipe.It is in the milk
Grout-jetting pipe can adopt prior art sleeving valve tube assembly.
Wherein, the grouting automatic monitoring system of the present invention includes：It is arranged on the hole positioned at grout hole of pulp-inlet pipe 34
Pressure gauge 35 at mouthful and pressure sensor 36；It is arranged on the pressure gauge 43 at grouting pump 33 (to set between each pressure gauge and pipeline
Put every sizing device)；It is arranged on the flow sensor 32 between grouting pump 33 and mixer with slurry 30；It is arranged on the detection on drilling tool
The displacement transducer 44 of drilling depth；With pressure sensor 36, flow sensor 32, mixer with slurry 30, displacement transducer 44
The grouting automatic recorder 42 connecting respectively, for carrying out in real time to pressure during grouting, injection rate, the density of grouting liquid, flow etc.
Monitoring and control.
Wherein, the drilling equipment of the present invention includes two kinds, and a kind of is down-the-hole drill equipment for being drilled with inside and outside round, separately
A kind of is geological core rig equipment for being drilled with interstitial hole.The drilling machine of prior art all can be adopted.
Additionally, the equipment of the present invention also includes other servicing units, such as lift isolated tube loop wheel machine, for fixing every
From the fixing device of pipe, and for barge being fixed on the fixing device at port berth：For backfilling the cabin in barge
Interior sand material, to increase the stability of barge as counterweight；For barge being fixed on four anchor cables at port berth,
So that positioning and cross-brace barge.
Although above-mentioned elaborate to the present invention, the invention is not restricted to this, those skilled in the art can
Modified with the principle according to the present invention, therefore, the various modifications that all principles according to the present invention are carried out all should be understood to
Fall into protection scope of the present invention.
Claims (10)
1. a kind of sea work barge grouting method, including：
Barge platform is set up on barge, and multiple pilot holes are opened up on barge platform；
Using suspender, isolated tube is divided into along pilot hole to the place hole to be drilled of extra large work block ground mass bed, so that by place hole to be drilled
The seawater of side is isolated with surrounding seawater；
To be located in isolated tube under the drilling tool of drilling equipment, once become to bore in the riprap layer of extra large work block ground mass bed using pipe-following drilling
Hole, and operation hole is formed by the synchronous sleeve pipe transferring to drill hole；
Divide into Grout-jetting pipe in operation in the hole, via Grout-jetting pipe, grouting material is filled in the gap of riprap layer using provisions for grouting.
2. method according to claim 1, the top of described isolated tube protrudes upward in described barge platform, isolated tube
Bottom is pounded into mud to jackstone layer surface.
3. method according to claim 2, the internal diameter of described isolated tube is more than the external diameter of described sleeve pipe.
4. method according to claim 1, described drilling depth is more than or equal to the thickness of riprap layer.
5. method according to claim 1, described pilot hole internal diameter is more than described isolated tube external diameter.
6. the method according to any one of claim 1-5, grouting material is filled in the gap of riprap layer and includes following walking
Suddenly：
After described operation in the hole divides into Grout-jetting pipe, rise and pull out sleeve pipe to the first paragraph top in operation hole, divide into hydraulic pressure plug, connection is penetrated
The pipeline of slurry pipe is in the milk, so that grouting liquid is filled in operation hole and the gap of riprap layer；
After the first paragraph perfusion in operation hole terminates, rise and pull out sleeve pipe to the second segment top in operation hole, continue grouting；
Repeat the above-mentioned step pulling out sleeve pipe and grouting, from the bottom to top grouting material is filled into whole operation in the hole；
After grouting material is filled in whole operation hole, take out hydraulic pressure plug, using grout pipe, sealing pores are carried out to the aperture in operation hole.
7. the method according to any one of claim 1-5, sets up barge platform on barge and opens up on barge platform
Pilot hole comprises the steps：
Lay steel plate on the cabin surface of barge, make a part for steel plate stretch out the ship edge of barge, form overhanging platform；
Steel plate is connected to one with barge；
It is stretched flat interval on platform outside and open up multiple pilot holes, to transfer isolated tube to place hole to be drilled along pilot hole.
8. grouting material is filled into the seam of riprap layer by method according to claim 1 using provisions for grouting via Grout-jetting pipe
When in gap, also include the step that real-time monitoring and control are carried out to strengthening motoring using grouting automatic monitoring system.
9. a kind of equipment for the extra large work barge grouting method as described in any one of claim 1-8, including：
Ride upon the barge platform on barge, open up multiple pilot holes thereon；
Suspender and the isolated tube being hung using suspender, isolated tube is divided into along pilot hole to the place hole to be drilled of extra large work block ground mass bed,
So that the seawater above place hole to be drilled is isolated with surrounding seawater；
It is arranged on the drilling equipment on barge platform, its drilling tool is located in isolated tube under being used for, so that using pipe-following drilling in sea
The riprap layer of work block ground mass bed once becomes boring, and forms operation hole by the synchronous sleeve pipe transferring to drill hole；
Be arranged on the drilling equipment on barge platform, have under be located at the Grout-jetting pipe of operation in the hole, using provisions for grouting warp
By Grout-jetting pipe, grouting material is filled in the gap of riprap layer.
10. equipment according to claim 9, the height of described isolated tube is more than described barge platform to described sea work block stone
The vertical height of the jackstone layer surface of bedding.
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| CN109024603A (en) * | 2018-08-09 | 2018-12-18 | 中国三峡建设管理有限公司 | Grouting process state switching method |
| CN110394890A (en) * | 2019-06-25 | 2019-11-01 | 厦门三航混凝土有限公司 | A kind of concrete component pouring quality control method and system |
| CN112412340A (en) * | 2018-01-26 | 2021-02-26 | 中铁十二局集团建筑安装工程有限公司 | Sand layer geological soil nailing wall supporting construction method |
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| US4740110A (en) * | 1987-04-06 | 1988-04-26 | Shell Offshore Inc. | Platform grouting system and method |
| CN103410149A (en) * | 2013-08-08 | 2013-11-27 | 葛洲坝集团试验检测有限公司 | Grouting method for bedrock under deep water conditions |
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| CN112412340B (en) * | 2018-01-26 | 2023-01-31 | 中铁十二局集团建筑安装工程有限公司 | Sand layer geological soil nailing wall supporting construction method |
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| CN110394890A (en) * | 2019-06-25 | 2019-11-01 | 厦门三航混凝土有限公司 | A kind of concrete component pouring quality control method and system |
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| CN106400807B (en) | 2018-10-19 |
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