CN104846847B - Ground base improving apparatus and ground base improving method by utilizing apparatus - Google Patents
Ground base improving apparatus and ground base improving method by utilizing apparatus Download PDFInfo
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- CN104846847B CN104846847B CN201410300207.0A CN201410300207A CN104846847B CN 104846847 B CN104846847 B CN 104846847B CN 201410300207 A CN201410300207 A CN 201410300207A CN 104846847 B CN104846847 B CN 104846847B
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- preventing framework
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Abstract
The present invention discloses a ground base improving apparatus capable of simply and reliably preventing the dispersion of the water pollution, and reliably improving an underwater foundation at a low cost. Meanwhile, the surrounding environment is kept at a good state during the over-water construction process. The front end of a rotary shaft (20) is provided with a stirring blade (22). A cylindrical pollution-proof frame (30) with a top (31) is mounted to cover the stirring blade, so that the rotary shaft is driven to move up and down. On one hand, solidating materials are discharged from one side. On the other hand, the underwater foundation (C) is improved through the stirring and mixing process of the stirring blade by means of the ground base improving apparatus (10). A plug-in hole (33) for the insertion of the rotary shaft is arranged at the top of the cylindrical pollution-proof frame. The sealing material (34) is arranged to seal gaps among the plug-in hole and the rotary shaft. In addition, a vent hole (36) is arranged at the top of the cylindrical pollution-proof frame. A changeover valve (37) is arranged to turn on/off the vent hole.
Description
Technical field
The present invention relates to be used in the contaminant water preventing producing in the water-bed ground of improvement diffusely carries out foundation improvement
The preferred ground improvement device of over-water construction and using this device ground improvement method.
Background technology
In the case that over-water construction is carried out to water-bed ground, made due to the flying upward etc. of bed mud caused by stirring mixing
Periphery is contaminated, but the anti-locking apparatus of contamination as the diffusion preventing this contaminant water are it is known to the device (example shown in Figure 12
As with reference to patent documentation 1).
As shown in figure 12, the anti-locking apparatus of this contamination 1 possess the top that top side is had inclined plane 3a of circular cone shape
Wall 3 seal and following side opening cylinder 2.In the central authorities of the roof 3 of this cylinder 2, the loosening chimeric lower end of formation possesses to be stirred
Mix the patchhole 4 of the rotary shaft 8 of blade 9.In addition, inclined plane 3a in roof 3 forms multiple osculums 5.And, cylinder 2
Roof 3 and side wall 6 become two segmenting structures via junction surface 7.
Prior art literature
Patent documentation 1：Japanese Patent Publication 6-74628 publication
Patent documentation 2：Japanese Unexamined Patent Publication 2007-307498 publication
However, in the anti-locking apparatus 1 of described existing contamination, free between the patchhole 4 of roof 3 and rotary shaft 8
Gap, and, be formed at multiple osculums 5 of inclined plane 3a of roof 3 and be not turned off, so in the water-bed ground of improvement, outside
The water capacity easily flow in cylinder 2 from the lower end of the side wall 6 of the cylinder 2 sinking under water and water-bed space, in outside water
In the case of flowing in this cylinder 2, contaminant water in cylinder 2 from the patchhole 4 of roof 3 with osculum 5 to External leakage
And spread it is difficult to be prevented securely from contamination to periphery, so that surrounding enviroment is deteriorated.
Additionally, patent documentation 2 discloses, on the top of the polluter diffusion preventing device of the box structure in lower aperture
Plate portion arranges the sliding bearing of water proof structure, makes this sliding bearing of drive shaft insertion, in order to avoid contaminant water is from the drive of insertion top plate portion
Move the device that axial space leaks out, but because when polluter diffusion preventing device sinks under water, make inside
Water to the outside check-valves discharged with when lifting polluter diffusion preventing device from the bottom, will be inside for outside water
The check-valves that portion imports are necessary obligato, so correspondingly construction becomes complicated cost uprises, and, pass in and out pollution in water
In the inside and outside construction of material diffusion preventing device, because the relation of hydraulic pressure is it is difficult to will be smooth for polluter diffusion preventing device
Sink under water or lift.
Content of the invention
Therefore, the present invention is in order to solve described problem and to complete, it is intended that provide can be simple and reliable
Prevent in water contamination, come reliable and improve water-bed ground at low cost, further, it is possible to by periphery when constructing on the water
Environment maintains ground improvement device and the ground improvement method using this device of good state.
The invention of scheme 1 is characterised by, installs stirring vane in the front of rotary shaft, and to cover stirring vane
Mode the contamination preventing framework of the tubular with top is installed, the setting at the top of this contamination preventing framework makes above-mentioned rotary shaft
The inserting hole inserted, and the encapsulant sealing this inserting hole and the space of above-mentioned rotary shaft is set, make in above-mentioned rotary shaft
Lower motion, curing materials is discharged while carrying out foundation improvement using the stirring mixing of above-mentioned stirring vane to water-bed ground
Ground improvement device in, the top of above-mentioned contamination preventing framework arrange passage, and arrange make this passage switch
Switching valve.
The invention of scheme 2 is ground improvement device described in scheme 1 it is characterised in that in above-mentioned contamination preventing framework
Uncontamination water outside this contamination preventing framework is imported the water entrance hole in this contamination preventing framework by all sidepiece settings, in above-mentioned dirt
Dye prevents the position opposed with this water entrance hole of all sidepieces of framework, and setting is using the inside and outside water of above-mentioned contamination preventing framework
Pressure reduction makes the valve components that this water entrance hole switchs.
The invention of scheme 3 is ground improvement device described in scheme 1 or 2 it is characterised in that in above-mentioned contamination preventing frame
The pump of the contaminant water in this contamination preventing framework is drawn in internal setting.
The invention of scheme 4 is that the ground improvement device described in scheme 3 draws it is characterised in that possessing and stockpiling from said pump
Contaminant water purification water tank.
The invention of scheme 5 is ground improvement device described in any one of scheme 1～4 it is characterised in that in above-mentioned pollution
Prevent between the lower end side setting blocking of all sidepieces of framework and the bottom in order to avoid contaminant water in this contamination preventing framework is to excessive
The piston skirt going out.
The invention of scheme 6 is ground improvement device described in any one of scheme 1～5 it is characterised in that in above-mentioned pollution
Prevent setting in framework from spraying the nozzle of the injection water of the pollutant being attached to above-mentioned stirring vane that blow off.
The invention of scheme is ground improvement device described in any one of scheme 1～5 it is characterised in that in above-mentioned pollution
Prevent setting in framework from spraying the nozzle of the injection air of the pollutant being attached to above-mentioned stirring vane that blow off.
The invention of scheme 8 is characterised by, installs stirring vane using in the front of rotary shaft, and is somebody's turn to do with covering
The mode of stirring vane installs the contamination preventing framework of the tubular with top, so that above-mentioned rotary shaft is moved up and down, discharges
Curing materials while water-bed ground is carried out the ground improvement device of foundation improvement using the stirring mixing of above-mentioned stirring vane
In ground improvement method, in the state of above-mentioned contamination preventing framework covers above-mentioned stirring vane, prevented located at this pollution with opening
Only the state of the passage at top of framework sinks under water, next, after above-mentioned contamination preventing framework reaches the bottom, making above-mentioned
In rotary shaft water-bed ground of insertion in the state of rotation, when reaching prescribed depth, discharging above-mentioned curing materials
Lift in the state of making above-mentioned stirring vane rotation, in the ground of the above-mentioned bottom, build up improvement stake, next, in above-mentioned paddle
Piece is accommodated in state or its way in above-mentioned contamination preventing framework, is polluted this using the pump in above-mentioned contamination preventing framework
The contaminant water in framework is prevented to be attracted to the purification water tank on operation ship, and, from the nozzle in this contamination preventing framework
Injection injection water or injection air, to peel off, to clean the pollutant being attached to above-mentioned rotary shaft and above-mentioned stirring vane, to connect down
Come, after the cleaning of above-mentioned rotary shaft and above-mentioned stirring vane terminates, the contaminant water in above-mentioned contamination preventing framework is attracted to
State the tank on operation ship, and by outside clear water from the water entrance hole of all sidepieces located at above-mentioned contamination preventing framework to this
Import in contamination preventing framework, so that the pollution in this contamination preventing framework is purified, next, the tank on above-mentioned operation ship sinks
Form sediment the pollutant separating in above-mentioned contaminant water, and the clear water above it is used as the mixing water of above-mentioned curing materials.
The invention of scheme 9 is ground improvement method described in scheme 8 it is characterised in that from located at above-mentioned contamination preventing
Nozzle injection injection water in framework, when peeling off the pollutant that cleaning is attached to above-mentioned rotary shaft and above-mentioned stirring vane, with
The mode that the injection water yield of said nozzle is less than the attraction water yield of contaminant water of said pump carries out water quantity management, in order to avoid contaminant water
From above-mentioned contamination preventing framework to External leakage.
The invention of scheme 10 is ground improvement method described in scheme 8 it is characterised in that laying on the ground of the above-mentioned bottom
After sand bedding course, in the ground of the above-mentioned bottom, build up above-mentioned improvement stake.
The effect of the present invention is as follows.
As described above, according to the invention of scheme 1, so that rotary shaft is inserted by the setting at the top of contamination preventing framework
Inserting hole, and sealing inserting hole is set with the encapsulant in the space of rotary shaft such that it is able to be reliably prevented contamination preventing
The inserting hole from top for the contaminant water in framework to outside leakage, can simply and be prevented securely from water pollution diffusion, conscientiously
And improve water-bed ground at low cost.Thereby, it is possible to surrounding enviroment be maintained good state when constructing on the water.In addition,
By arranging passage at the top of contamination preventing framework, and, the switching valve making passage switch is set, thus will pollute
When preventing framework from sinking under water, open passage via switching valve, the air in contamination preventing framework can be cut from passage
Discharge on the spot, contamination preventing framework can be made swimmingly to sink to the bottom.
According to the invention of scheme 2, arranged the non-dirt outside contamination preventing framework by all sidepieces in contamination preventing framework
Dye water imports the water entrance hole in contamination preventing framework, and in the position opposed with this water entrance hole, setting utilizes contamination preventing frame
The valve components of the inside and outside hydraulic pressure official post water entrance hole switch of body, thus the hydraulic pressure of the contaminant water in contamination preventing framework declines
When, from the water entrance hole opened using valve components, outside clear water can be imported in contamination preventing framework, simply and effectively
Purifying contaminated prevents the pollution in framework.
According to the invention of scheme 3, the contaminant water in contamination preventing framework is drawn by setting in contamination preventing framework
Pump is such that it is able to simply and swimmingly draw the contaminant water in contamination preventing framework in screw clamp.
According to the invention of scheme 4, by possessing the purification water tank stockpiling the contaminant water drawn from pump such that it is able to purify
Pollutant in tank peel separation contaminant water, it is possible to the mixing water as curing materials recycles.
According to the invention of scheme 5, by the lower end side of all sidepieces in contamination preventing framework, between setting blocking and the bottom
In order to avoid the piston skirt that the contaminant water in contamination preventing framework is outwards overflowed, thus the hydraulic pressure of the contaminant water in contamination preventing framework
During decline, with water-bed space, outside clear water is imported in contamination preventing framework from piston skirt, simple and effectively purifying contaminated
Prevent the pollution in framework.
According to the invention of scheme 6, blown off by setting injection in contamination preventing framework and be attached to the pollution of stirring vane
The nozzle of the injection water of thing is such that it is able to being peeled off at short notice, cleaned the pollutant being attached to stirring vane with injection water.
According to the invention of scheme 7, blown off by setting injection in contamination preventing framework and be attached to the pollution of stirring vane
The nozzle of the injection air of thing is such that it is able to effectively stripping, cleaning are attached to stirring vane at short notice with injection air
Pollutant.
According to the invention of scheme 8, by using arranging, at top, the inserting hole making rotary shaft insert, and it is slotting to arrange sealing
The encapsulant in the space of through hole and rotary shaft, arranges passage at the top of contamination preventing framework, and arranges and make passage
The contamination preventing framework of the switching valve of switch, makes rotary shaft move up and down, discharges curing materials and utilize stirring vane
Stirring mixing, to carry out foundation improvement to water-bed domain, thus when contamination preventing framework sinks under water, beating via switching valve
Open pore, effectively the air in contamination preventing framework can be discharged from passage, contamination preventing framework can be made smooth
Sink to the bottom, in addition, in construction, contaminant water in contamination preventing framework not the inserting hole from top to External leakage, simply
And it is prevented securely from water pollution diffusion, water-bed ground can be improved conscientiously and at low cost.As a result, when can construct on the water
Surrounding enviroment are maintained good state.
According to the invention of scheme 9, by spraying injection water from the nozzle in contamination preventing framework, to peel off, to clean
Be attached to rotary shaft and stirring vane pollution when, be less than the side of the attraction water yield of the contaminant water of pump with the injection water yield of nozzle
Formula carries out water quantity management, so as not to contaminant water from contamination preventing framework to External leakage such that it is able to be prevented securely from contaminant water from
Contamination preventing framework is to outside leakage, simple and be prevented securely from the pollution in the contamination preventing framework that foundation improvement produces
Contamination in the peritropous water of water, does not have bad influence to environment such as the ecological environmenies of over-water construction periphery.
According to the invention of scheme 10, after having laid sand bedding course on water-bed ground, in water-bed ground, build up improvement
Stake, thus when extracting rotary shaft from water-bed ground, can make the pollution being attached to stirring vane take off using the sand of sand bedding course
Fall.
Brief description
Fig. 1 is the side view of the operation ship on the bow possessing ground improvement device of the 1st embodiment representing the present invention.
Fig. 2 is the amplification view of the major part of above-mentioned ground improvement device.
Fig. 3 is the sectional view of the contamination preventing framework of the major part being used in above-mentioned ground improvement device.
Fig. 4 is the top view of above-mentioned contamination preventing framework.
Fig. 5 is the sectional view representing the state being provided with the rotary shaft being used in above-mentioned ground improvement device.
Fig. 6 is to represent the sectional view that above-mentioned rotary shaft is inserted the state that water-bed ground to be improved.
Fig. 7 is the sectional view representing the state building up improvement stake using above-mentioned rotary shaft in water-bed ground.
Fig. 8 is the sectional view building up the state completing representing above-mentioned improvement stake.
Fig. 9 is the sectional view of the state to improve above-mentioned rotary shaft again insertable into water-bed ground.
Figure 10 is the amplification view of the major part of ground improvement device of the 2nd embodiment of the present invention.
Figure 11 is the outline figure of the major part of ground improvement device of the 3rd embodiment of the present invention.
Figure 12 is the axonometric chart of the major part of the anti-locking apparatus of existing contamination.
In figure：10th, 10 ', 10 " ground improvement device, 11 operation ships, 13 recess grooves (purification water tank), 18 lead
Post, 20 rotary shafts, 22 stirring vanes, 30 contamination preventing frameworks, 31 top boards (top), 32 side plates (all sidepieces),
33 inserting holes, 34 o-rings (encapsulant), 36 passages, 37 switching valves, 38 water entrance holes, 39 valve components,
40th, P pump, 41,42 nozzles, in A water, B is water-bed, C bottom ground, E curing materials, and F improves stake, and N is non-
Contaminant water, M contaminant water, J injection water, Ja sprays air.
Specific embodiment
Hereinafter, based on accompanying drawing, embodiments of the present invention are illustrated.
Fig. 1 is the side view of the operation ship on the bow possessing ground improvement device of the 1st embodiment representing the present invention,
Fig. 2 is the amplification view of the major part of this ground improvement device, and Fig. 3 is the major part being used in this ground improvement device
Contamination preventing framework sectional view, Fig. 4 is the top view of this contamination preventing framework, and Fig. 5～Fig. 9 is to represent this ground in order
The axonometric chart of the state of the over-water construction at the sea of base improved device etc..
As shown in figure 1, ground improvement device 10 is located at the fore 11b of the hull 11a of operation ship 11, it is following 4 shaft type dresses
Put, i.e. the blade 21 that excavates using the front end being installed on 4 rotary shafts 20 enters to the water-bed ground C positioned at water-bed B of A in water
Row excavates, and the stirring vane 22 using the front being installed on each rotary shaft 20 excavates native D and cement mortar, cement emulsion slurry etc. to it
Curing materials E is stirred mixing, thus building up improvement stake F using the solidification of this curing materials E.
In addition, in hull 11a, from the front side to rear side, being respectively provided with a pair of hoist engine 12A, 12B, recess groove (purified water
Groove) 13, Rinsing Area 14, grouting pump 15, mud complete set of equipments 16, cement silo 17.In the production line of this over-water construction, utilize
The curing materials E such as cement mortar that mud complete set of equipments 16 is generated by grouting pump 15, cement emulsion slurry are via rig (driving machine) 19
Supply to rotary shaft 20.And, contaminant water M drawn up in contamination preventing framework 30 described later precipitates in recess groove 13
Separate the pollutant in contaminant water M, the clear water above it is accumulated in Rinsing Area 14.In addition, in water the water of A also via pump P and
Flexible pipe H is drawn and is accumulated in Rinsing Area 14.Additionally, in figure symbol P represents pump, symbol H represents flexible pipe.
As shown in figure 1, ground improvement device 10 possesses：Vertically erect the guide pillar 18 of fore 11b in hull 11a, with energy
4 rotary shafts 20 moving the mode of (moving up and down) and being supported by enough are freely lifted along this guide pillar 18 on vertical, make this
Rig (driving machine) 19 that rotary shaft 20 rotates and lifts and with respect to guide pillar 18 and rotary shaft 20 to be freely lifted
Mode is installed, and has top board in the way of the excavation blade 21 to cover the front end being installed on rotary shaft 20 and stirring vane 22
The contamination preventing framework 30 of the corner tubular at (top) 31.
As shown in figure 1, what rig 19 was freely lifted with a pair of groove portion 18a, 18a along the front both sides being formed at guide pillar 18
Mode is arranged.That is, in this rig 19, link by base end side wound on hoist engine 12A steel wire rope Wa, by this hoist engine 12A
Driving, rig 19 carries out elevating movement along guide pillar 18.In addition, as shown in Fig. 1 and Fig. 4, contamination preventing framework 30 with respect to
Rotary shaft 20 is supported by the way of being freely lifted, and, a pair of groove portion 18a, 18a along guide pillar 18 carries out elevating movement.I.e.
Have base end side wound on hoist engine 12A in pulley described later 45 stretching of the top board 31 being installed on this contamination preventing framework 30,
And a side is attached at the steel wire rope Wb of the top 18b of guide pillar 18, by the driving of this hoist engine 12B, contamination preventing frame
Body 30 carries out elevating movement along guide pillar 18.Additionally, 4 rotary shafts 20 respectively by be built in the motor (not shown) of rig 19 with
And the rotation such as gear mechanism.In addition, as shown in figure 5, each rotary shaft 20 is formed as long size by lengthening.
As shown in Figure 1 and Figure 2, rotary shaft 20 is formed as cylindric, prevents servo-actuated space holding plate 23,24 by having concurrently
And predetermined distance can be kept.In addition, be provided with the excavation blade excavating water-bed ground C in the lower end (front end) of rotary shaft 20
21.And, the upside of the excavation blade 21 in rotary shaft 20, is provided with and linearly prolongs to the left and right with mutually staggering 90 ° of phase places
A pair of the stirring vane 22 stretched.And, supply the stream of curing materials E from the upper end of rotary shaft 20 to stirring vane 22 with insertion
25 mode is arranged.
And, in the water-bed ground C that rotary shaft 20 is inserted improvement after when extracting, from the stream located at rotary shaft 20
The outlet 26 of 25 lower end, discharges the curing materials E such as injection cement mortar, cement emulsion slurry in water-bed ground C, and stirring mixing changes
The native D and curing materials E that excavates in good water-bed ground C to build up improvement stake F by the solidification of this curing materials E.
As shown in Figure 1 to 4, contamination preventing framework 30 is the steel part of ferrum etc., is formed through deadweight and sinks to water-bed B's
Weight.This contamination preventing framework 30 possesses the top board (top) 31 of corner tabular and extends to from the neighboring of this top board 31
The side plate (all sidepieces) 32 of the corner tubular of lower section, when using, is arranged at and covers the lower end (front end) being installed on rotary shaft 20
The position excavating blade 21 and stirring vane 22.
As shown in Fig. 2 in the top board 31 of contamination preventing framework 30, being respectively provided with the inserting hole making rotary shaft 20 insert at 4
33, and, the rubber system o-ring (sealing material of each inserting hole of sealing 33 and the space of rotary shaft 20 is installed via holding member 35
Material) 34.In addition, in the top board 31 of contamination preventing framework 30, be arranged on make contamination preventing framework 30 not in water when pollution is anti-
The passage 36 that only air in framework 30 is discharged to outside contamination preventing framework 30.On this top board 31, installing makes passage 36
The switching valve 37 of switch.
As shown in Fig. 2 in the opposite position in the bottom of the side plate 32 of contamination preventing framework 30, being respectively provided with pollution is anti-
Only the uncontamination water N outside framework 30 imports the water entrance hole 38 of the circle in contamination preventing framework 30.With this water entrance hole 38
The inner side of opposed side plate 32, installs the plectane of inside and outside hydraulic pressure official post water entrance hole 38 switch using contamination preventing framework 30
The hinge valve components 39 of shape.The switch of the water entrance hole 38 being carried out by this hinge valve components 39, uncontamination water N is only from pollution
The outside preventing framework 30 is internally passed through.
As shown in Figure 2 to 4, in the position of the close top board 31 of the inner side of the side plate 32 of contamination preventing framework 30, install
The pump 40 that contaminant water M in contamination preventing framework 30 is drawn into recess groove 13 by a pair via flexible pipe H.In addition, in contamination preventing
The lower end side of the side plate 32 of framework 30, the space installing blocking with water-bed B is in order to avoid the contaminant water in contamination preventing framework 30 is outside
The rubber system tabular overflowed and the piston skirt 41 of corner tubular.Hydraulic pressure in contamination preventing framework 30 is than contamination preventing framework 30
Outside hydraulic pressure low in the case of, this piston skirt 41 can be rolled-up to contamination preventing framework 30 side, from contamination preventing framework
30 outer supply uncontamination water N.And, the position opposite with stirring vane 22 of the side plate 32 in contamination preventing framework 30, peace
Fill multiple high-pressure injections to blow off the nozzle of injection water (water under high pressure) J being attached to the pollutant (not shown) of stirring vane 22 etc.
42.
As shown in Figure 2 to 4, in the corner of the top board 31 of contamination preventing framework 30, it is respectively mounted and has stretched base end side
Pulley 45 wound on the steel wire rope Wb of hoist engine 12B.In addition, contamination preventing framework 30 be installed on a piece of upper of side plate 32
Each protuberance 46a of a pair of fixture 46,46 in portion can sliding freely embed a pair of groove portion 18a, 18a of guide pillar 18.Thus, dirty
Dye prevents framework 30 from carrying out elevating movement along a pair of groove portion 18a, 18a of guide pillar 18.
Next, successively the ground improvement device 10 of above-mentioned composition is carried out using Fig. 1, Fig. 2 and Fig. 5～Fig. 9
Over-water construction illustrates.
As shown in figure 5, erectting the guide pillar 18 of the hull 11a being arranged on operation ship 11, it is vertically arranged 4 via rig 19
Root rotary shaft 20, and it is vertically arranged contamination preventing framework 30 in the front of each rotary shaft 20.Now, A in water, to wrap
Enclose the mode of each rotary shaft 20 and contamination preventing framework 30, in advance via the buoy 50 floating on the surface, so that plate 51 is hung down.
Next, making each rotary shaft 20 and contamination preventing framework 30 decline along guide pillar 18, cover in contamination preventing framework 30
In the state of covering excavation blade 21 and the stirring vane 22 of the front end of each rotary shaft 20, to open the passage located at top board 31
36 state, as shown in Figure 1 and Figure 2, contamination preventing framework 30 is sunk to water-bed B.Now, because lodging in contamination preventing frame
The air on the top in body 30 is discharged from passage 36, so contamination preventing framework 30 swimmingly sinks to water-bed B.
Next, as shown in fig. 6, after contamination preventing framework 30 reaches water-bed B, making each rotary shaft 20 be rotating insertion water
In the ground C of bottom.
Next, as shown in fig. 7, the lower end of each rotary shaft 20 reach prescribed depth when, from the discharge of each rotary shaft 20
Discharge the curing materials E such as injection cement mortar, cement emulsion slurry in mouth 26 to water-bed ground C, discharge curing materials E, on one side
Lift in the state of rotating agitation blades 22, the excavation soil D and curing materials E in the water-bed ground C of improvement is stirred mixing
Close, water-bed ground builds up improvement stake F.
Next, as shown in figure 8, being stored in the shape in contamination preventing framework 30 in excavation blade 21 and stirring vane 22
In state or its way, using the pump 40 in contamination preventing framework 30, contaminant water M in contamination preventing framework 30 is attracted to operation
Recess groove 13 on ship 11, and, by nozzle 42 high-pressure injection injection water J in contamination preventing framework 30, to peel off,
Cleaning is attached to the pollutant such as the sandy soil of each rotary shaft 20 and stirring vane 22.
When cleaning, using this injection water J, the pollutant being attached to each rotary shaft 20 and stirring vane 22, using operation ship
Operation dish (not shown) on 11 etc., in the way of the attraction water yield that the injection water yield of nozzle 42 is less than contaminant water M of pump 40
Carry out water quantity management, so as not to contaminant water M from contamination preventing framework 30 to External leakage.
If next, the cleaning of each rotary shaft 20 and stirring vane 22 terminates, stopping the high-pressure injection of injection water J, but
So that the action of the pump 40 in contamination preventing framework 30 is continued, contaminant water M in contamination preventing framework 30 is attracted to operation ship 11
On recess groove 13, and the water entrance hole 38 from the side plate 32 located at contamination preventing framework 30 or contamination preventing framework 30
The space of the piston skirt 41 of the lower end side of side plate 32 and water-bed B import clear water (the non-dirt of outside into contamination preventing framework 30
Dye water) N, so that the pollution in contamination preventing framework 30 is purified.
Next, pollutant in recess groove 13 precipitate and separate contaminant water M on operation ship etc., by the clear water above it
When rotary shaft 20 shown in Fig. 9 upper is once inserted, builds up, the mixing water as curing materials E uses.Thereby, it is possible to
Contaminant water M in contamination preventing framework 30 that will produce in foundation improvement is as the mixing water circulation of curing materials E.
This ground improvement device carried out to water in the water-bed ground C of A carry out in the over-water construction of foundation improvement,
The inserting hole 33 making rotary shaft 20 insert is set using in top board 31, and the space of sealing inserting hole 33 and rotary shaft 20 is set
O-ring 34 contamination preventing framework 30, and when lifting the rotary shaft 20 of prescribed depth being inserted into water-bed ground C, from
The outlet 26 of the downside of stirring vane 22 discharges injection curing materials E while digging to water-bed ground C using stirring vane 22
Digging D is stirred mixing with curing materials E building up improvement stake F, thus A in the water in building up, contamination preventing framework 30
Interior contaminant water M not from the inserting hole 33 of top board 31 to External leakage, can simply and reliably prevent from expanding to the pollution of A in water
Dissipate, the water-bed ground C of reliability and at low cost improvement.Thereby, it is possible to surrounding enviroment be maintained good shape when constructing on the water
State.
In addition, passage 36 is arranged by the top board 31 in contamination preventing framework 30, and arrange and so that passage 36 is switched
Switching valve 37, thus by contamination preventing framework 30 sink under water B when, open passage 36 via switching valve 37, can be by
Air in contamination preventing framework 30 is effectively discharged from passage 36, and contamination preventing framework 30 can be made swimmingly to sink to water
Bottom B.
In addition, in the side plate 32 of contamination preventing framework 30, the uncontamination water N outside contamination preventing framework 30 is imported dirty by setting
Dye prevents the water entrance hole 38 in framework 30, and in the position opposed with this water entrance hole 38, setting utilizes contamination preventing framework 30
Inside and outside hydraulic pressure official post water entrance hole 38 switch uncontamination water N is imported the hinge valve components in contamination preventing framework 30
39, thus contaminant water M in contamination preventing framework 30 being drawn into recess groove 13 using pump 40, in contamination preventing framework 30
When the hydraulic pressure of contaminant water M declines, outside uncontamination water N can be led from the water entrance hole 38 opened using hinge valve components 39
Enter in contamination preventing framework 30, simple and effectively purifying contaminated prevent the pollution in framework 30.
In addition, draw the pump 40 of contaminant water M in contamination preventing framework 30, energy by setting in contamination preventing framework 30
Enough simply and swimmingly contaminant water M in contamination preventing framework 30 is drawn in the recess groove 13 on operation ship 11.By this pump
Pollutant in precipitate and separate contaminant water M in recess groove 13 for 40 contaminant water M drawn, the clear water above it is accumulated in Rinsing Area
In 14, it is possible to the mixing water as curing materials E recycles.
And, the lower end side by the side plate 32 in contamination preventing framework 30, in order to avoid polluting between setting blocking and water-bed B
Prevent the piston skirt 41 that contaminant water M in framework 30 is outwards overflowed, thus using pump 40 by the dirt in contamination preventing framework 30
Dye water M is drawn into recess groove 13, when the hydraulic pressure of contaminant water M in contamination preventing framework 30 declines, can be by outside uncontamination
Water N imports in contamination preventing framework 30 from the space of piston skirt 41 and water-bed B, simple and effectively purifying contaminated prevent framework
Pollution in 30.
And, the position opposite with stirring vane 22 by the side plate 32 in contamination preventing framework 30, installs multiple
High-pressure injection blow off injection water J of pollutant being attached to rotary shaft 20 and stirring vane 22 nozzle 42 such that it is able to spray
Jetting J peels off reliably in a short time, cleans the pollutant such as the sandy soil being attached to rotary shaft 20 and stirring vane 22.
And, from nozzle 42 high-pressure injection injection water J in contamination preventing framework 30, to peel off, to clean attachment
During pollutant in rotary shaft 20 and stirring vane 22 etc., it is less than the suction of contaminant water M of pump 40 with the injection water yield of nozzle 42
The mode of water diversion carries out water quantity management and the water quality management carrying out according to scopometer etc., in order to avoid contaminant water M is from contamination preventing
Framework 30 is to External leakage such that it is able to be prevented securely from the leakage to outside contaminant water M from contamination preventing framework 30, simply
And it is prevented securely from the pollution expansion of A in the peritropous water of contaminant water M in the contamination preventing framework 30 of generation in foundation improvement
Dissipate.As a result, bad influence is not produced to environment such as the ecological environmenies of over-water construction periphery.
And, in the over-water construction that the ground improvement device 10 of above-mentioned composition is carried out, if in advance on water-bed ground C
Lay sand bedding course, then, after improvement stake F builds up, when extracting rotary shaft 20 from water-bed ground C, sand can be utilized in sand bedding course
Scrape off the pollutant being attached to rotary shaft 20 and stirring vane 22.That is, pass through sand bedding course in rotary shaft 20 and stirring vane 22
During layer of sand, can be wiped off by the layer of sand of sand bedding course and clean the pollutant being attached to rotary shaft 20 and stirring vane 22.
Figure 10 is the amplification view of the major part of ground improvement device of the 2nd embodiment of the present invention.
In the ground improvement device 10 ' of the 2nd embodiment, in the side plate 32 of contamination preventing framework 30 and paddle
The opposite position of piece 22, the multiple high-pressure injections of installation are blown off and are attached to the injection of the pollutant (not shown) of stirring vane 22 etc.
The nozzle 43 of air Ja.If spraying this injection air Ja, top in contamination preventing framework 30 for the airtrapping, but this air
Discharge to outside from passage 36.Accompany with this, via flexible pipe H by contaminant water M in contamination preventing framework 30 be drawn into located at
A pair of pump 40,40 of recess groove 13 is respectively arranged in the close hinge valve components 39 of the inner side of side plate 32 of contamination preventing framework 30
Position.Additionally, other compositions are identical with above-mentioned 1st embodiment, so constituting partly attached same-sign for identical,
Omit detailed description.
According to the 2nd embodiment, in the position opposite with stirring vane 22 of the side plate 32 of contamination preventing framework 30,
Install multiple high-pressure injections blow off the pollutant being attached to rotary shaft 20 and stirring vane 22 etc. injection air Ja nozzle 43,
So as to effectively be peeled off at short notice using injection air Ja, cleaning is attached to rotary shaft 20 and the dirt of stirring vane 22
Dye thing etc..
In addition, because replacing injection water J using injection air Ja, it is possible to reducing the usage amount of the water of Rinsing Area 14,
Cost degradation can correspondingly be realized.
Figure 11 is the outline figure of the major part of ground improvement device of the 3rd embodiment of the present invention.
The ground improvement device 10 of the 3rd embodiment " will be installed on the side plate 32 of contamination preventing framework 30 and stirring
The nozzle 44 of high-pressure injection injection water J of the opposite position of blade 22 or injection air Ja is formed as long size, and warp
Installed in the way of can swinging by hinge 44a.Thereby, it is possible to the more neighbouring position in rotary shaft 20 and stirring vane 22
Towards the front end of nozzle 44, high-pressure injection injection water J or injection air Ja, can simpler and effectively blow off and clean attached
The pollutant etc. in rotary shaft 20 and stirring vane 22.
Additionally, in the respective embodiments described above, to by 4 rotary shafts, excavation soil and curing materials are stirred mixing
The multiaxial type device of 4 shaft types to build up improvement stake is illustrated, but certainly can to 1 shaft type device of 1 rotary shaft, 2
The multiaxial type device application the respective embodiments described above of root rotary shaft.In addition, in the respective embodiments described above although utilizing injection water
Or injection air blows off pollutant being attached to rotary shaft and stirring vane etc. but it is also possible to using injection water and spray air
Mixing that is, pressure-air mixing water blow off.
Claims (10)
1. a kind of ground improvement device, it installs stirring vane in the front of rotary shaft, and to cover this stirring vane
Mode installs the contamination preventing framework of the tubular with top, so that described rotary shaft is inserted in the setting of the top of this contamination preventing framework
Logical inserting hole, and the encapsulant sealing this inserting hole and the space of described rotary shaft is set, make described rotary shaft upper and lower
Motion, discharges curing materials and carries out foundation improvement using the stirring mixing of described stirring vane to water-bed ground, should
Ground improvement device is characterised by,
Passage is set at the top of described contamination preventing framework, and the switching valve making this passage switch is set,
Described switching valve connects inside and outside described contamination preventing framework by opening described passage, thus, makes described dirt
Dye prevents framework from not making the air in described contamination preventing framework by described passage to described contamination preventing frame when in water
Release in vitro.
2. ground improvement device according to claim 1 it is characterised in that
In all sidepiece settings of described contamination preventing framework, the uncontamination water outside this contamination preventing framework is imported this contamination preventing
Water entrance hole in framework, passes through institute in the position setting opposed with this water entrance hole of all sidepieces of described contamination preventing framework
State the valve components of this water entrance hole of inside and outside hydraulic pressure official post switch of contamination preventing framework.
3. the ground improvement device according to claims 1 or 2 it is characterised in that
In described contamination preventing framework, the pump of the contaminant water in this contamination preventing framework is drawn in setting.
4. ground improvement device according to claim 3 it is characterised in that
Possesses the purification water tank stockpiling the contaminant water drawn from described pump.
5. ground improvement device according to claim 1 and 2 it is characterised in that
Between the lower end side of all sidepieces of described contamination preventing framework, setting blocking and the bottom in order to avoid in this contamination preventing framework
The piston skirt that outwards overflows of contaminant water.
6. ground improvement device according to claim 1 and 2 it is characterised in that
In described contamination preventing framework, setting injection is for the injection water of the pollutant being attached to described stirring vane that blow off
Nozzle.
7. ground improvement device according to claim 1 and 2 it is characterised in that
In described contamination preventing framework, setting injection is for the injection air of the pollutant being attached to described stirring vane that blow off
Nozzle.
8. a kind of ground improvement method, it uses ground improvement device, and this ground improvement device is installed in the front of rotary shaft
Stirring vane, and the contamination preventing framework of the tubular with top is installed in the way of covering this stirring vane, in this pollution
The top preventing framework arranges the inserting hole making described rotary shaft insert, and arranges this inserting hole of sealing and described rotary shaft
The encapsulant in space, makes described rotary shaft move up and down, and discharges curing materials and utilizes described stirring vane stirring
Mixing, to carry out foundation improvement to water-bed ground, this ground improvement method is characterised by,
In the state of described contamination preventing framework covers described stirring vane, described contamination preventing framework is to open located at this dirt
Dye prevents the state of the passage at top of framework from sinking under water,
Next, after described contamination preventing framework reaches the bottom, making the water-bed ground of described rotary shaft insertion in the state of rotation
In base, when reaching prescribed depth, the state of described stirring vane rotation is made to lift to discharge described curing materials, from
And build up improvement stake in the ground of the described bottom,
Next, in state or its way that described stirring vane is accommodated in described contamination preventing framework, using described dirt
Dye prevents the tank that the contaminant water in this contamination preventing framework is attracted on operation ship by the pump in framework, and, from located at this
Nozzle injection injection water in contamination preventing framework or injection air, to peel off, to clean and be attached to described rotary shaft and described
The pollutant of stirring vane,
Next, after the cleaning of described rotary shaft and described stirring vane terminates, by the contaminant water in described contamination preventing framework
It is attracted to the purification water tank on described operation ship, and, will from the water entrance hole of all sidepieces located at described contamination preventing framework
Outside clear water imports in this contamination preventing framework, so that the pollution in this contamination preventing framework is purified,
Next, the pollutant in the contaminant water described in tank precipitate and separate on described operation ship, the clear water above it is made
Mixing water for described curing materials uses.
9. ground improvement method according to claim 8 it is characterised in that
By spraying injection water from the nozzle in described contamination preventing framework, to peel off cleaning and to be attached to described rotary shaft
During with the pollutant of described stirring vane, it is less than the attraction water yield of the contaminant water of described pump with the injection water yield of described nozzle
Mode carries out water quantity management, so as not to contaminant water from described contamination preventing framework to External leakage.
10. ground improvement method according to claim 8 it is characterised in that
After having laid sand bedding course on the ground of the described bottom, in the ground of the described bottom, build up described improvement stake.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014025423A JP5546083B1 (en) | 2014-02-13 | 2014-02-13 | Ground improvement device and ground improvement method using the device |
| JP2014-025423 | 2014-02-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104846847A CN104846847A (en) | 2015-08-19 |
| CN104846847B true CN104846847B (en) | 2017-02-22 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410300207.0A Expired - Fee Related CN104846847B (en) | 2014-02-13 | 2014-06-26 | Ground base improving apparatus and ground base improving method by utilizing apparatus |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5546083B1 (en) |
| CN (1) | CN104846847B (en) |
| HK (1) | HK1208562A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101592480B1 (en) * | 2015-03-20 | 2016-02-05 | 수현엔지니어링(주) | Ground consolidation type grouting apparatus using low flowing mortar for ocean floor and grouting method using that |
| KR102477623B1 (en) * | 2019-02-18 | 2022-12-14 | 삼성중공업 주식회사 | Pump maintenance apparatus of pump column, and method thereof |
| KR102363204B1 (en) * | 2021-05-31 | 2022-02-15 | 에코엔텍주식회사 | Soft Soil Improvement Method to prevent pollution by floating soil |
| KR102382048B1 (en) * | 2021-11-16 | 2022-04-04 | 마레이엔씨 | Silt protector |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0674628U (en) * | 1993-03-30 | 1994-10-21 | 小野田ケミコ株式会社 | Underwater ground improvement device equipped with a pollution diffusion prevention device |
| JP2003094023A (en) * | 2001-09-27 | 2003-04-02 | Yoshihiko Maeno | Solidification treatment method for contaminated soil |
| JP2007307498A (en) * | 2006-05-19 | 2007-11-29 | Takenaka Doboku Co Ltd | Original-position mixing treatment method and original-position mixing treatment apparatus of contaminated soil of bottom of water |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6117630A (en) * | 1984-07-05 | 1986-01-25 | Taisei Corp | Powder injecting and stirring work for underwater ground |
| JPH067068Y2 (en) * | 1988-10-20 | 1994-02-23 | 朝日基礎株式会社 | Ground improvement device |
| JP2004308199A (en) * | 2003-04-04 | 2004-11-04 | Yoshihiko Maeno | Water bottom polluted ground stabilization processing construction method and water bottom polluted ground processing construction method |
-
2014
- 2014-02-13 JP JP2014025423A patent/JP5546083B1/en active Active
- 2014-06-26 CN CN201410300207.0A patent/CN104846847B/en not_active Expired - Fee Related
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2015
- 2015-09-21 HK HK15109249.3A patent/HK1208562A1/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0674628U (en) * | 1993-03-30 | 1994-10-21 | 小野田ケミコ株式会社 | Underwater ground improvement device equipped with a pollution diffusion prevention device |
| JP2003094023A (en) * | 2001-09-27 | 2003-04-02 | Yoshihiko Maeno | Solidification treatment method for contaminated soil |
| JP2007307498A (en) * | 2006-05-19 | 2007-11-29 | Takenaka Doboku Co Ltd | Original-position mixing treatment method and original-position mixing treatment apparatus of contaminated soil of bottom of water |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104846847A (en) | 2015-08-19 |
| HK1208562A1 (en) | 2016-03-04 |
| JP5546083B1 (en) | 2014-07-09 |
| JP2015151734A (en) | 2015-08-24 |
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