CN1324200C - Seepage control consolidation method and apparatus for reciprocating high-pressure injection grouting foundation - Google Patents

Seepage control consolidation method and apparatus for reciprocating high-pressure injection grouting foundation Download PDF

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Publication number
CN1324200C
CN1324200C CNB2005100515475A CN200510051547A CN1324200C CN 1324200 C CN1324200 C CN 1324200C CN B2005100515475 A CNB2005100515475 A CN B2005100515475A CN 200510051547 A CN200510051547 A CN 200510051547A CN 1324200 C CN1324200 C CN 1324200C
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pressure
reciprocating
pressure injection
drilling
foundation
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CNB2005100515475A
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Chinese (zh)
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CN1667202A (en
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赵延龙
姜宏勇
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赵延龙
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Abstract

The present invention relates to an anti-seepage reinforcement method for a reciprocating high-pressure injection grouting foundation and a device, which has the functions of drilling and high injection. A water or slurry and gas high-pressure injection pipeline is arranged in a drill rod. The present invention is provided with a device for conveying slurry, water and gas, and a lifting device. A walking type table vehicle having the functions of drilling and pouring is moved to the drilling position so as to carry out drilling construction. When drilling, the high-pressure slurry pump conveys high-pressure medium. When needed, an air compressor is opened to convey high-pressure gas. The high-pressure medium is sprayed on the prime stratum around a drilling hole which is formed by cutting, and mixing liquid is formed. After the drilling hole reaches the designed depth, high-pressure spraying and grouting are carried out from bottom to top. The method and the device reduce have the advantages that the number of equipment and the number of operation staff are reduced; the work efficiency and the verticality of the drilling hole are enhanced; the quantity of cement is saved; the construction cost is greatly reduced.

Description

Reciprocating high-pressure injection grouting foundation anti-seepage reinforcement method and equipment thereof
Technical field
The present invention relates to the antiseepage processing and the foundation consolidating technology field of geotechnical engineering, relate in particular to a kind of reciprocating high-pressure injection grouting foundation anti-seepage reinforcement method and equipment thereof.
Background technology
The conventional method of geotechnical engineering anti-seepage reinforcing processing at present is boring earlier, high pressure jet grouting is carried out in back playpipe down, this conventional method is only just carried out high-pressure injection when promoting, therefore be called the one-pass type high pressure jet grouting, owing to be that boring descends playpipe to carry out high-pressure injection then earlier, when therefore it is holed, bore diameter without high-pressure spray is less, greatly in 108 millimeters, and cement consumption is big during high the spray, the cement waste is serious, and because the one-pass type high pressure jet grouting adopts rig boring, and then carry out high-pressure injection with high pressure jet grouting equipment, so equipment complexity, personnel are lengthy and tedious, improved construction costs, technologically speaking, the boring verticality of one-pass type high-pressure injection is by first boring, transfer to boring with inclinometer then and carry out natural measurement of tilt, complex procedures, rate is excessive if hole deviation appears in deviational survey, also needs the hole flushing correction, even pore-creating again, when the one-pass type high pressure jet grouting in when spray pendulum, the one-tenth wall at its nozzle position is thinner, less than 10 centimetres, can not guarantee workmanship, in addition, the one-pass type high pressure jet grouting is to use earlier rig pore-creating, after remove rig, the high-pressure injection chassis is moved to bore position, descend shotcrete pipe to carry out high-pressure injection then, the drawback that this operation exists is when running into cobble, when sand and mud stratum, the boring of rig is difficult to pore-forming, and the hole of collapsing easily, the bury drills bar can't be placed playpipe.
Summary of the invention
In order to solve the technical problem that exists in the above-mentioned prior art, provide a kind of reduce number of devices and operating personnel's quantity, operation simple, creep into the vertical precision height, save cement consumption, shorten the construction period, reciprocating high-pressure injection grouting foundation anti-seepage reinforcement method and equipment thereof that construction costs is low, this method and apparatus will creep into high-pressure injection and combine together, reduce number of devices and operating personnel's quantity, improved the verticality of work efficiency and boring simultaneously, save cement consumption, shorten the construction period, greatly reduce construction cost.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
Water is installed in drilling rod or is starched gentle high-pressure injection pipeline, slurry is carried in outfit or water is gentle and lifting means, move to bore position with boring the walking chassis of irritating one, carry out drilling construction, high pressure slurry pump is carried high-pressure medium when creeping into, open air compressor machine when needing and carry gases at high pressure, high-pressure medium sprays the prime stratum around the boring, cutting, stirring forms 0.2-1.0 rice even bigger bore diameter, and make mixing material, behind drilling to completion, change high-pressure medium into cement paste, close discharge jet simultaneously, from bottom to top carry out high pressure jet grouting.
Another feature of the present invention is that the reciprocating type high chassis that sprays is moved to bore position, start high pressure slurry pump and carry the high-pressure liquid medium cuts formation, the pressure of liquid medium is 10-45Mpa, the mixture on medium and stratum is to the slotted eye retaining wall, behind drilling to completion, the conveying water under high pressure mud that meets the requirements, promptly sending the pressure of water under high pressure mud according to designing requirement is 10-45Mpa, even it is bigger, close discharge jet simultaneously, from bottom to top spray, until design altitude, branch preface or continuous construction form the cement solidifies body or curtain.
Another feature of the present invention is that high pressure jet grouting has the jet grouting mode, when jet grouting, water under high pressure mud further enlarges cut coverage, make satisfactory circular hole hole slot, simultaneously cement paste is mixed to stir with the mixing material on stratum and is formed the cement mixing body, and cement paste is the liquid in the extruding jet nozzle jeting area under the high pressure effect, mixing material from the aperture replace portal outside, cement paste is stayed ground retrofilling circular port groove, forms solidifying body.
Another feature of the present invention is the form that high pressure jet grouting also has pendulum sprinkling irrigation slurry, when the pendulum spray, start high pressure slurry pump, water under high pressure mud further cuts former stratum along the pivot angle direction on the basis of cuts formation creeping into, enlarge cutting zone, make hole slot, cement paste is the mixture in the extruding jet nozzle jeting area under the high pressure effect, and outside the mixture displacement was portalled, cement paste was stayed underground formation cement mixing body curtain.
Another feature of the present invention is the form that high pressure jet grouting also has fixed spray, when spraying surely, select construction parameter according to designing requirement, start high pressure slurry pump, water under high pressure mud further cuts former stratum along fixing injection direction on the basis of cuts formation creeping into, enlarge cutting zone, make satisfactory hole slot, cement paste is the mixture in the extruding jet nozzle jeting area under the high pressure effect, outside mixture displacement portalled, cement paste stayed in underground formation cement mixing body curtain.
Another feature of the present invention is custom-designed equipment in order to implement reciprocating high-pressure injection grouting foundation anti-seepage reinforcement method of the present invention, walking chassis with deep mixing method replaces rig and high spray booth car, on the platform of the walking chassis of deep mixing method, buncher is installed, one connecting rod is connected buncher with mill on the walking chassis, back and forth the high-pressure injection chassis is made up of hull and support two parts, be distributed with mill on the hull for the drilling rod rotation, the motor of power is provided for mill, swing mechanism, hoisting mechanism, trolley running adopts hydraulic jack, and the lifting of drilling rod is finished by the chain that lifting appliance is connected with support with the whereabouts.
Another feature of the present invention is that two seamless steel pipes are installed in the drilling rod, a water under high pressure or a slurry pipe for using when creeping into and promoting, and another root is an appendix.
Another feature of the present invention is the special joint of drilling rod, and joint is the concave-convex structure, and the concave-convex joint is welded on the two ends of drilling rod respectively, and seamless steel pipe in the drilling rod and concave-convex joint are pegged graft to form and be tightly connected.
Another feature of the present invention is that the brill shower nozzle is a four wing bit, and high pressure nozzle is in both sides about 15~20cm above the drill bit or a side, and its external diameter is bigger 0.5 centimetre than the diameter of drilling rod rotation.
Another feature of the present invention is that drill bit adopts edge alloy bit or diamond bit or rock bit.
Adopt reciprocating high-pressure injection grouting of the present invention, owing to be when creeping into, to hole with high-pressure spray, therefore, the pore-creating diameter is bigger, can reach the 200-1000 millimeter, even diameter is bigger, high spray is compared with one-pass type when high-pressure injection, if utilize same design parameters to carry out work, more can guarantee workmanship than the one-pass type high pressure jet grouting, if adopt identical pressure, pivot angle and speed-raising, in the identical time, reciprocating high-pressure injection grouting is bigger than the one-pass type high pressure jet grouting amount of finishing the work, if adopt identical pressure, pivot angle with finish identical workload, the reciprocating high-pressure injection grouting speed-raising is faster than one-pass type high pressure jet grouting, the work efficiency height.
Because reciprocating high-pressure injection grouting is to adopt pore-creating and high-pressure injection to carry out simultaneously, therefore, has reduced plant equipment quantity, has reduced constructor's quantity, has reduced construction costs.
Say technically, reciprocating high-pressure jet has adopted the principle of reaming when creeping into, so will be during rod boring along the vertical direction automatic deviation correction in expanded hole, as long as when creeping into, measure the verticality of rig and drilling rod at any time, guarantee that its vertical precision is just passable, avoided like this in the one-pass type high-pressure injection after the Completion of Drilling Hole, occurred through deviational survey that the hole deviation rate is excessive to need the hole flushing correction, even the problem of pore-creating again.
The one-tenth wall thickness degree at nozzle position was doubled than the one way high-pressure injection when reciprocating high-pressure injection grouting will spray, put spray surely, had guaranteed workmanship.
Reciprocating high-pressure jet is because be to bore the spray one, with regard to the problem that has solved the hole of collapsing, bury drills bar well and do not removed shotcrete pipe down.
Description of drawings
Fig. 1 is the schematic diagram of reciprocating type high pressure grouting foundation anti-seepage reinforcement means;
Fig. 2 be among Fig. 1 swing mechanism 15 face facade section;
Fig. 3 is the schematic top plan view of the swing mechanism 15 of Fig. 1;
Fig. 4 is the joint schematic diagram;
Fig. 5 bores shower nozzle joint schematic diagram;
Fig. 6 is the process chart of engineering construction.
Wherein, 1-walking chassis, 2-console, 3-gear, the 4-lifting appliance that pressurizes, the 5-rotating disk, 6-bores (spray) bar, the 7-drilling cramp, 8-chain, 9-air compressor machine, the 10-high pressure slurry pump, 11-mixer, 12-high-pressure rubber pipe, the 13-threeway, 14-soft air pipe, 15-swing mechanism, the 16-water tap, 17-sprocket wheel, 18-sprocket wheel, the 19-power set, 20-transmission device, 21-slush pump, the 22-slurry storing tube, 23-water drum, 24-drill bit, the 25-link fixing means, 26-swing mechanism connecting rod, 27-pivot angle selecting arrangement, the 28-power transmission pole, 29-swing mechanism actuating unit, 30-reducing gear, 31-water (slurry) pipe, 6-drilling rod, 33-connecting bolt, the 35-tracheae, 36-female fitting, 37-convex joint.
The specific embodiment
1-3 comprises walking chassis 1 with reference to the accompanying drawings, drilling cramp 7, and mixer 11, high pressure slurry pump 10, power set 19, transmission device 20, gear 3, rotating disk 5 bores (spray) bar 6, bores shower nozzle 24, pressurization lifting appliance 4, pendulous device 15 etc.
When creeping into, move walking chassis 1 to the position, hole by handling console 2, start air compressor machine 9 compressed air is transported to water tap 16 by soft air pipe 14, be wrapped in water under high pressure mud (water) ejection by boring in the spray boom 6 tracheae 35 from high pressure valve 39, start mixer 11 cement paste that stirs is transported to slurry storing tube 22 by slush pump 21, start high pressure slurry pump 10, water in the water drum 23 is delivered to water tap 16 through high pressure slurry pump pressurization back by high-pressure rubber pipe 12, by boring in the spray boom 6 slurry (water) pipe 31 from high mud jacking (water) mouth 38, high pressure ejection under the parcel of high pressure gas, power set 19 make rotating disk 5 rotations by gear 3 and transmission device 20, pressurization lifting appliance 4 is by sprocket wheel 17,18 drive sprocket link chain mechanisms are given and are bored 6 pressurizations of (spray) bar, and high pressure slurry pump 10 usefulness water under high pressure cuts formation are crept into simultaneously.
During lifting, change water into cement grout by threeway 13, pressurization lifting appliance 4 promotes water tap 16 and bores (spray) bar 6 by sprocket wheel 17,18 drive sprocket link chain mechanisms, by swing mechanism 15 swings, the high-pressure slurry cuts formation promotes while swinging, repeat, form seepage proof curtain; When the high-pressure slurry cuts formation,, and when rotating, promote while rotating and just to form rotary churning pile with rotating disk without swing mechanism 15.
Among the accompanying drawing 4-5, bore the four wing bit of shower nozzle 24 for the edge alloy, top is connected with joint 36, boring the seamless steel pipe that two sealings are arranged in (spray) bar 6 is respectively slurry (water) pipe 31 and 35 tracheaes, be welded on respectively on the joint that bores on the spray boom, the both sides or a side of boring 15~20cm place, top of shower nozzle are installed with high mud jacking (water) mouth 38 and high pressure valve 39.Creeping into, promoting of brill shower nozzle is to be connected to form seal construction by water tap 16 with boring (spray) bar, and pressurization lifting appliance 4 is by sprocket wheel 17,18 drive sprockets, link chain mechanism, and drive is bored spray boom and finished.
Walking chassis with deep mixing method replaces rig and the high spray booth car of one-pass type, on the platform of chassis, buncher is installed again, utilize then connecting rod with buncher be connected with mill on the walking chassis just made pendulum angle like this can be at the walking chassis of the reciprocating high-pressure injection grouting of 0~60 ° of adjustment, reciprocal high spray booth car is made up of hull and support two large divisions, ship length 6~8m does not wait, width 2.4m, hydraulic leg both sides elongation is 2.8m, distributing on the hull and supplying the mill of drilling rod rotation, the motor of power is provided for mill, swing mechanism, hoisting mechanism, trolley running adopts hydraulic jack, left-right and front-back freely, move up and down, the lifting of drilling rod is finished by the chain that the lifting appliance utilization is connected with support with the whereabouts; Utilizing the reciprocating high-pressure injection grouting chassis to drive brill (spray) bar drill advances, promotes, rotates, swings, drilling rod adopts square, length of side 114cm or 125cm, wall thickness 0.8cm or 1cm, hoisting velocity is controlled at 5~30cm/min, rotation by clockwise, rotating speed rotating speed swing speed when 20~50r/min, swing when 20~50r/min, churning is 6~10r/min when creeping into, and swinging structure is seen schematic diagram 3.Two seamless steel pipes are installed in the drilling rod, the pressure index of seamless steel pipe is not less than 50Mpa, wall thickness is not less than 4mm, water under high pressure (slurry) pipe for using when creeping into and promoting, the pressure limit of water under high pressure is that the pressure limit of 10~45Mpa, high mud jacking is 10~45Mpa, another root is an appendix, and the pressure limit of gas is at 0.6~0.8Mpa.The connection of drilling rod utilizes special-purpose joint, the overall dimensions of joint are identical with drilling rod, structure is seen reciprocal high spray joint schematic diagram 4, joint adopts concave-convex to peg graft, cancavo-convex joint is welded on two of drilling rod respectively, forms sealing continuous water under high pressure (slurry), air pipe when the seamless steel pipe in the drilling rod docks with concavo-convex joint.The drilling rod bottom is connected with brill shower nozzle with high nozzle; drill bit can be selected alloy, diamond bit and rock bit for use, and the external diameter of drill bit is than the big 0.5cm of diameter of drilling rod rotation, with the protection drilling rod; distance between high water spout and the drill bit alloy is the smaller the better, generally is no more than 20cm.High water spout adopts alloy, and nozzle inside diameter is 0.6~2.5mm, bores nozzle structure and sees schematic diagram 5, and top is connected with water under high pressure (slurry), air pipe.Water under high pressure (slurry) pipeline is connected with high pressure slurry pump, and slurry mixer is connected with high pressure slurry pump by pipeline, and air pipe is connected with air compressor machine.A shared high-pressure rubber pipe connects with threeway when high pressure slurry pump inject high pressure cement paste and water under high pressure.
Reciprocating type high spray booth car is moved to bore position, start plant equipment and carry the high-pressure liquid medium cuts formation, the pressure of liquid medium is 10~45Mpa, the mixture on medium and stratum is to the slotted eye retaining wall, behind drilling to completion, the water under high pressure mud (sending high pressure gas) that conveying meets the requirements according to designing requirement, the pressure of water under high pressure mud is that (pressure of high pressure gas is 0.6~0.8Mpa) to close discharge jet simultaneously to 10~45Mpa, from bottom to top carry out the height spray, until design altitude, continuous or branch preface construction forms the cement solidifies body or curtain.
Advantage of the present invention is: creep into high spray and combine together, reduced equipment and operating personnel, adopt jet to creep into the verticality that has improved work efficiency and boring, adopt reciprocating type high spraying construction speed fast, save cement, greatly reduce construction cost.
Reciprocating high-pressure jet grouting ground-strengthening method, it is characterized in that: become reciprocating type high spray by the high spray of one-pass type, water (slurry) is installed in drilling rod, gas high-pressure injection pipeline and the jetting pipeline when creeping into, be equipped with and carry slurry, water, gas and lifting means, the walking chassis that bores the spray one is moved to bore position, continuous or branch preface is carried out drilling construction, high pressure slurry pump is carried water under high pressure or other high-pressure medium when creeping into, open air compressor machine when needing and carry gases at high pressure, high-pressure medium sprays the prime stratum of 0.2~1.0m around the drill bit, cutting, stir and make mixing material, behind drilling to completion, change high-pressure medium into cement paste, open high-pressure air pipe when needing, close discharge jet simultaneously, from bottom to top carry out high pressure jet grouting.
High pressure jet grouting has churning, pendulum to spray, spray surely three kinds of forms, during jet grouting, water under high pressure mud further sprays cuts formation and enlarges cut coverage, make satisfactory circular hole slot, simultaneously cement paste is mixed to stir with the mixing material on stratum and is formed the cement mixing body, and cement paste is the liquid in the extruding jet nozzle jeting area under the high pressure effect, mixing material from the aperture replace portal outside, cement paste stays in ground retrofilling circular port groove, forms solidifying body
Select construction parameter according to designing requirement during the pendulum spray, start high pressure slurry pump, water under high pressure mud further cuts former stratum along pivot angle, enlarge cutting zone, make satisfactory hole slot, cement paste is the mixture in the extruding jet nozzle jeting area under the high pressure effect, and outside the mixture displacement was portalled, cement paste stayed in underground formation cement mixing body curtain.
Select construction parameter according to designing requirement when spraying surely, start high pressure slurry pump, water under high pressure mud further cuts former stratum along fixing injection direction, enlarge cutting zone, make satisfactory hole slot, cement paste is the mixture in the extruding jet nozzle jeting area under the high pressure effect, and outside the mixture displacement was portalled, cement paste stayed in underground formation cement mixing body curtain.Engineering construction:
(1) pore-creating operation
1. chassis is in place: chassis is moved to treat the boring position.
2. chassis leveling: after chassis was in place, the leveling board made chassis main shaft vertical ground.
3. pore-creating: drilling depth should be greater than design hole depth 0.2~0.5m.
(2) sprinkling irrigation operation
1) slurry preparation: use materials such as the cement preparation slurries that design needs, as 425 #Portland cement or Portland cement, or cement and flyash its preparing materials etc.
2) cement paste adopts homogenizer slurrying, and construction technical staff is made regular check on material volume and slurry specific gravity, strict control slurries quality.
3) construction technology:
1, back and forth high pressure jet grouting is built seepage proof curtain, generally adopts the construction of two preface methods, and two preface spans are arranged, two preface spans 12~72 hours are identical with preface hole injection direction, and body of wall adopts broken line shape to connect.
2, following playpipe: creep into together playpipe at present, after projected depth, reserve injection direction, pendulum angle, then jet grouting.
3, jet grouting: when playpipe to projected depth, send into the gas, the slurry that meet the requirements, lifting in accordance with regulations, swing speed promote while spraying from bottom to top, until design altitude, stop to supply gas, and when slurries are filled with the hole, stop to send slurry.
4, recharge: AEI After End of Injection, slurries also at continuous precipitation, bleed, cause liquid level constantly to descend in the hole, so AEI After End of Injection, also will utilize overfall to replenish slurries in the hole, are not sinking up to liquid level.
5, emit slurry utilization: the overfall that produces in the high pressure jet grouting work progress can not arbitrarily discharge, and for preserving the ecological environment, can selectively utilize the way of overfall.
6, clean: should move on to next hole rapidly after has sprayed in a hole.As because of the displacement or failure and other reasons stop to be in the milk 1~3 hour, should each flushing of pipeline is clean, must not leave residue, with anti-clogging.

Claims (16)

1. reciprocating high-pressure injection grouting foundation anti-seepage reinforcement method, it is characterized in that, melt boring and be one with high spray, water is installed in drilling rod or is starched gentle high-pressure injection pipeline, be equipped with transporting water or starch gentle and lifting means, move to bore position with boring the walking chassis of irritating one, carry out drilling construction, high pressure slurry pump is carried high-pressure medium when creeping into, open air compressor machine when needing and carry gases at high pressure, high-pressure medium sprays prime stratum around the boring, and cutting forms boring, and make mixing material, from bottom to top carry out high pressure jet grouting again after the arrival projected depth.
2. reciprocating high-pressure injection grouting foundation anti-seepage reinforcement method according to claim 1 is characterized in that described bore diameter is more than or equal to 0.2-1.0 rice.
3. reciprocating high-pressure injection grouting foundation anti-seepage reinforcement method according to claim 1 is characterized in that, the pressure of the high mud jacking in water under high pressure or the slurry pipe is 10-45Mpa, and the pressure of water under high pressure is 10-45Mpa, and the pressure of gas is 0.6-0.8Mpa in the appendix.
4. reciprocating high-pressure injection grouting foundation anti-seepage reinforcement method according to claim 1 is characterized in that, hoisting velocity is 5-30cm/min.
5. reciprocating high-pressure injection grouting foundation anti-seepage reinforcement method according to claim 1, it is characterized in that, the reciprocating type high chassis that sprays is moved to bore position, start high pressure slurry pump and carry the high-pressure liquid medium cuts formation, behind drilling to completion, carry water under high pressure mud and send gases at high pressure when promoting high jet pipe, close discharge jet simultaneously, from bottom to top spray, until design altitude, construction forms the cement solidifies body or curtain continuously.
6. reciprocating high-pressure injection grouting foundation anti-seepage reinforcement method according to claim 1, it is characterized in that, high pressure jet grouting has the jet grouting mode, when jet grouting, start high pressure slurry pump, start air compressor machine in case of necessity, water under high pressure mud further enlarges cut coverage, make the circular hole hole slot, simultaneously cement paste is mixed to stir with the mixing material on stratum and is formed the cement mixing body, the liquid of cement paste in extruding jet nozzle sprays under the high pressure effect, mixing material from the aperture replace portal outside, cement paste is stayed ground retrofilling circular port groove, forms solidifying body.
7. reciprocating high-pressure injection grouting foundation anti-seepage reinforcement method according to claim 6 is characterized in that the drilling speed of drilling rod is at 20-40r/min during churning.
8. reciprocating high-pressure injection grouting foundation anti-seepage reinforcement method according to claim 1, it is characterized in that, high pressure jet grouting also has the form of pendulum sprinkling irrigation slurry, start high pressure slurry pump and air compressor machine when the pendulum spray, water under high pressure mud further cuts former stratum along the pivot angle direction, enlarges cutting zone, make hole slot, cement paste is the mixture in the extruding jet nozzle jeting area under the high pressure effect, and outside the mixture displacement was portalled, cement paste was stayed underground formation cement mixing body curtain.
9. reciprocating high-pressure injection grouting foundation anti-seepage reinforcement method according to claim 8 is characterized in that, drill pipe wobbling speed is 6-10r/min during the pendulum spray, and hoisting velocity is 6~20cm/min.
10. reciprocating high-pressure injection grouting foundation anti-seepage reinforcement method according to claim 1, it is characterized in that, high pressure jet grouting can manage it the form of fixed spray, start high pressure slurry pump and air compressor machine when spraying surely, water under high pressure mud further cuts former stratum along fixing injection direction, enlarges cutting zone, make satisfactory hole slot, cement paste is the mixture in the extruding jet nozzle jeting area under the high pressure effect, and outside the mixture displacement was portalled, cement paste stayed in underground formation mixture curtain.
11. reciprocating high-pressure injection grouting foundation anti-seepage reinforcement method according to claim 10 is characterized in that, the hoisting velocity of drilling rod is 6~20cm/min when spraying surely.
12, a kind of reciprocating high-pressure injection grouting foundation anti-seepage reinforcement method special equipment, it is characterized in that, walking chassis with deep mixing method replaces rig and high spray booth car, on the platform of the walking chassis of deep mixing method, buncher is installed, one connecting rod is connected buncher with mill on the walking chassis, back and forth the high-pressure injection chassis is made up of hull and support two parts, be distributed with mill on the hull for the drilling rod rotation, the motor of power is provided for mill, swing mechanism, hoisting mechanism, trolley running adopts hydraulic jack, and the lifting of drilling rod is finished by the chain that lifting appliance is connected with support with the whereabouts.
13, reciprocating high-pressure injection grouting foundation anti-seepage reinforcement method special equipment according to claim 12 is characterized in that, two seamless steel pipes are installed in the drilling rod, a water under high pressure or a slurry pipe for using when creeping into and promoting, and another root is an appendix.
14. reciprocating high-pressure injection grouting foundation anti-seepage reinforcement method special equipment according to claim 12, it is characterized in that, the special joint of drilling rod is the concave-convex structure, the concave-convex joint is welded on the two ends of drilling rod respectively, and seamless steel pipe in the drilling rod and concave-convex joint are pegged graft to form and be tightly connected.
15. reciprocating high-pressure injection grouting foundation anti-seepage reinforcement method special equipment according to claim 12 is characterized in that drill bit is a four wing bit, its external diameter is bigger 0.5 centimetre than the diameter of drilling rod rotation.
16. reciprocating high-pressure injection grouting foundation anti-seepage reinforcement method special equipment according to claim 12 is characterized in that, drill bit adopts edge alloy bit or diamond bit or rock bit.
CNB2005100515475A 2005-03-04 2005-03-04 Seepage control consolidation method and apparatus for reciprocating high-pressure injection grouting foundation CN1324200C (en)

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CN106400785A (en) * 2016-08-30 2017-02-15 中国水利水电第十工程局有限公司 Construction method for grouting by adopting highly spraying, drilling and grouting integrated machine
CN106592596A (en) * 2016-12-12 2017-04-26 浙江海洋大学 Foundation high-pressure jet grouting device
CN109162726B (en) * 2018-08-22 2020-01-03 广州众粤市政园林设计工程有限公司 Deviation correcting tool head and tool head deviation correcting method
CN110043190B (en) * 2019-04-02 2020-08-18 中国地质科学院勘探技术研究所 Method for building vertical well large-diameter chamber
CN110042854A (en) * 2019-04-25 2019-07-23 内蒙古大雁矿业集团有限责任公司 Super-pressure angular domain speed change jet stream grouting method and curtain wall

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