CN209722956U - A kind of jet grouting pile driving machine - Google Patents

Abstract

The utility model discloses a kind of jet grouting pile driving machines, belong to pile foundation equipment technical field.The utility model includes voluntarily running gear, Integral operating platform, rotation working platform, support transfer bar mechanism, steel wire rope hoisting mechanism, tower bar mechanism, power head and drill rod mechanism, wherein Integral operating platform is set in voluntarily running gear, and rotation working platform is located at the top of Integral operating platform and can be rotated relative to Integral operating platform；The support transfer bar mechanism is using multistage scalable hydraulic push rod, its both ends is hinged with rotation working platform and tower bar mechanism respectively, and support transfer bar mechanism between rotation working platform and tower bar mechanism also respectively by second changed course hydraulic cylinder push rod, first alter course hydraulic cylinder push rod be connected.The depth of soft foundation construction area range and single rotary-spraying construction after whirl spraying position of p ile machine can effectively be expanded using the technical solution of the utility model, improves construction efficiency, and can guarantee flabbiness ground strengthened effect.

Description

A kind of jet grouting pile driving machine

Technical field

The utility model belongs to pile foundation equipment technical field, more specifically to a kind of jet grouting pile driving machine.This is practical It is novel other than the construction requirement that can satisfy conventional equipment, be more good at processing Tailings Dam, mud, marshland, gully and construction The unapproachable area of the conventional equipments such as place corner.

Background technique

At present in the Soft foundation treatment of engineering field, cement stabilization method is a kind of processing method being widely adopted. Wherein, cement mixing pile is a kind of conventional construction method, mainly using cement as the host agent of curing agent, utilizes mixing pile Cement jet is entered the soil body and is sufficiently stirred by machine, makes to generate a series of physics, chemical reaction between cement and weak soil, to make soft Soil scleroma forms the cement earth pile with globality, water stability and some strength, and then improves the intensity of ground.But it is this Method is more demanding to soil property, easily because of pile strength difference caused by stirring unevenly, to influence bearing capacity.

In order to solve drawbacks described above existing for cement mixing pile, high-pressure rotary jet grouting pile technology is come into being, in engineering pile foundation In work progress, for argillic horizon, fill stratum, mud and sand bed, the most common equipment of high-pressure rotary jet grouting pile technology is small-sized rotation Spray stake machine.The drilling rod height of this small-sized rotary churning pile machine is generally 2-3m, rotates on one side, one side high-pressure mortar spraying, by manually connecing Drilling rod realizes the increase of drilling depth.But usually there are the following problems for this small-sized rotary churning pile machine:

1) since conventional small rotary churning pile every run of steel of machine only has 2-3m, manually connect that tear drilling rod open frequent, speed-raising is unstable Fixed, Human disturbance is excessive, and excessive pile body is caused to overlap；It is connected and is sealed by flax silk between drilling rod simultaneously, be easy to cause injection Grouting pressure is unstable, grouting pressure is inadequate, lower drilling force is inadequate, therefore encounters hard stratum and have the fill stratum of disintegrating slag that can not then bore Into.In addition, pile body itself intensity after just being solidified due to cement is not high, the high-pressure rotary jet grouting pile constructed with this traditional equipment There are larger limitation, it is generally used for the composite foundation not high to requirement for bearing capacity and constructs；

2) in the construction process, frost boiling is serious, waste material, pollutes environment for conventional small rotary churning pile machine, cuts to the soil body Ability is low, underground soil property will lead to when really up to the mark can not pile, design requirement is not achieved in stake diameter.Meanwhile underground soil body restraining force without Method accurate quantification, whitewashing amount spray pressure can not accurately control, and verticality is difficult to control, and especially high-pressure rotary spraying method is more difficult to control The size of pile body diameter, and can not accomplish unanimous between the higher and lower levels；

3) conventional small rotary churning pile machine the degree of automation is low, not only causes the waste of raw material, also easily causes pile body The problems such as defect, it is low that there are construction effects, and man efficiency is low.

For disadvantages described above existing for small-sized rotary churning pile machine, application No. is the application cases of CN201710250039 to disclose one Kind combined type rotary churning pile machine, combined type rotary churning pile and its construction, this application pass through to traditional high-pressure rotary stake machine Drilling rod improves, and drilling rod is divided into inside and outside two layers, outer layer is outer tube, and internal layer is internal core rod, and the length of drilling rod can basis Actual demand determines, so that the pressure of aqueous slurry on the one hand can be improved by the height of drilling rod itself, on the other hand, bilayer is bored Bar can bear bigger water slurry hydraulic coupling, and on earth, it efficiently avoids existing small-sized rotary churning pile machine pore-formings for disposable pile The problem of the difference of construction stability caused by human interference in the process.But the internal core rod of this application is only capable of conveying a kind of water slurry Liquid carries out the construction of high-pressure rotary jet grouting pile, and not can guarantee the variation for needing reinforcement depth, is not also suitable for reinforcing area wider range Soft foundation construction.

Utility model content

1. utility model technical problems to be solved

The purpose of the utility model is to overcome rotary churning pile areas when being handled using existing rotary churning pile machine soft foundation Domain range is relatively small, and the lower deficiency of construction efficiency provides a kind of jet grouting pile driving machine.Using the technical side of the utility model Case can effectively expand the soft foundation construction area range after whirl spraying position of p ile machine, improve construction efficiency, and can guarantee soft Weak foundation stabilization effect.

2. technical solution

In order to achieve the above objectives, technical solution provided by the utility model are as follows:

A kind of jet grouting pile driving machine of the utility model, including voluntarily running gear, Integral operating platform, rotary work Platform, support transfer bar mechanism, steel wire rope hoisting mechanism, tower bar mechanism, power head and drill rod mechanism, wherein Integral operating platform is set to Voluntarily in running gear, rotation working platform is located at the top of Integral operating platform and can be rotated relative to Integral operating platform； The support transfer bar mechanism using multistage scalable hydraulic push rod, mutually cut with scissors with rotation working platform and tower bar mechanism respectively by both ends It connects, and supports between transfer bar mechanism and rotation working platform and tower bar mechanism also respectively by the second changed course hydraulic cylinder push rod, the One changed course hydraulic cylinder push rod is connected；Power head and drill rod mechanism are equipped with by steel wire rope hoisting mechanism in the tower bar mechanism.

Further, the support transfer bar mechanism includes non-telescope push rod tube and is successively set in non-telescope pushing rod sleeve Hydraulically extensible push rod tube and final stage hydraulically extensible push rod tube among at least one level inside pipe, wherein non-telescope push rod tube Tail end be connected with the center of rotation working platform by commutation section, the free end of final stage hydraulically extensible push rod tube passes through first Commutation connection is hinged with tower bar mechanism.

Further, the tower bar mechanism is multistage scalable hydraulic column rod structure comprising tower bar core bar and according to It is secondary to be set in outside tower bar core bar, and pass through the multi-stage column rod bush of hydraulic-driven；The bottom of the tower bar mechanism is equipped with support Bottom plate.

Further, the steel wire rope hoisting mechanism includes wirerope elevator rotating cylinder, deflecting guide wheel and wirerope, Middle wirerope elevator rotating cylinder is fixedly installed on Integral operating platform, and wirerope one end is fixed on wirerope elevator rotating cylinder, another One end is fixedly linked around the deflecting guide wheel in tower bar mechanism with power head rack, and the power head is installed on power head rack On.

Further, the power head includes the motor, speed reducer and hydraulic chuck being sequentially connected, motor peace Loaded in power head rack, the slow-speed shaft of speed reducer is connected by hydraulic chuck with drill rod mechanism.

Further, air deflector is equipped between the hydraulic chuck and drill rod mechanism, which includes air deflector Shell and rotational installation are in the shaft of air deflector interior of shell, and shaft one end is fixedly linked with power head, the other end and drilling rod Mechanism is fixedly linked；Further, the cavity between the shaft and air deflector shell is divided into slurries A points by sealing ring With room, high pressure gas distributor chamber and slurries B distributor chamber, three distributor chambers connect with slurries A adapter tube, gas adapter tube and slurries B respectively Pipe is connected, and is connected respectively by slurries A distribution pipe, gas service pipes and slurries B distribution pipe with the nozzle on drill rod mechanism.

Further, the drill rod mechanism includes at least one level hollow drill pipe and hollow brill being successively detachably connected Head, be equipped in the hollow drill pipe and hollow drill bit respectively with slurries A distribution pipe, gas service pipes and slurries B distribution pipe phase Slurries A delivery pipe, air shooter and the slurries B delivery pipe of connection, the slurries A delivery pipe, gas in the hollow drill bit are defeated Pipe and slurries B delivery pipe is sent to be connected respectively with slurries A nozzle, high pressure gas nozzle and slurries B nozzle, and slurries A nozzle, slurry Liquid B nozzle and high pressure gas nozzle, which are successively set with, forms three-casing structure.

Further, the upper end of the air deflector shaft is equipped with the connectiing shaft head cooperated with power head, and lower end is equipped with Disk is connect with the air deflector of hollow drill pipe cooperation, and the both ends of the hollow drill pipe are correspondingly provided with that drilling rod top connects disk and drilling rod lower part connects Disk；The two opposite side walls of the hollow drill bit are equipped with two groups of symmetrical nozzle assemblies, and the drill bit of end uses three wings Drill bit；The both ends of the Integral operating platform are respectively equipped with supporting leg and tower bar support frame.

3. beneficial effect

Using technical solution provided by the utility model, compared with prior art, there is following remarkable result:

(1) a kind of jet grouting pile driving machine of the utility model, by supporting transfer bar mechanism to be supported peace to tower bar mechanism Dress, the support transfer bar mechanism is using multistage scalable hydraulic push rod, and it is installed on rotation working platform, passes through rotary work Making platform drives support transfer bar mechanism and tower bar mechanism and drill rod mechanism to be rotated, and to the collapsing length of support transfer bar mechanism into Row adjust, so as to so that after single telephone-moving can rotary churning pile operating area area effectively increased, can increase substantially 5 times with On, and construction efficiency is also effectively improved.

(2) a kind of jet grouting pile driving machine of the utility model, the support transfer bar mechanism and rotation working platform and tower bar It is connected respectively by the second changed course hydraulic cylinder push rod, the first changed course hydraulic cylinder push rod between mechanism, passes through the second changed course hydraulic cylinder The effect of push rod positions vertical postrotational support transfer bar mechanism, by the effect of the first changed course hydraulic cylinder push rod to tower The angle of linkage and drill rod mechanism is adjusted, it is made to rotate to be vertical direction, consequently facilitating carrying out jet grouting pile construction.

(3) a kind of jet grouting pile driving machine of the utility model, tower bar mechanism are multistage scalable hydraulic column rod structure, and Drill rod mechanism includes at least one level hollow drill pipe being successively detachably connected and hollow drill bit, is promoted by the hydraulically extensible of tower bar And the series connection of multistage drilling rod guarantees single rotary-spraying construction so as to effectively increase the depth of single rotary-spraying construction Depth is more than 100 meters.

(4) a kind of jet grouting pile driving machine of the utility model is equipped with water conservancy diversion between the hydraulic chuck and drill rod mechanism Device, the cavity between the shaft and air deflector shell of the air deflector are divided into different distributor chambers, and different distribution by sealing ring The fluid of room is delivered to different spray nozzles and ejection on drilling rod by conveyance conduit respectively, so as to so that a plurality of fluids and the soil body Effect effectively enhances the hydration and hardening effect to soft soil, and respectively fluid of different nature will not be mutual before stirring Interference changes fluid properties, avoids the generation of plugging phenomenon when combining it in advance, further ensures the soil body Solidification effect.

(5) a kind of jet grouting pile driving machine of the utility model, slurries A nozzle, slurries B nozzle in the hollow drill bit and High pressure gas nozzle is successively set with and forms three-casing structure, super-pressure slurries A, high-pressure water slurries B and three kinds of media of gas, with The pattern transverse jet that high pressure annular airflow wraps up slurries A, B projects, and wherein slurries B is the catalyst of slurries A, they are mixed Closing object has extremely strong aquation gelling function and effect, and impact Unfavorable geology construction is surround in high pressure cylinder slurries and its outer ring Under the combined effect of airflow, destroy Unfavorable geology construction, rigid body, half viscous body, viscous body impact agitation energy significantly increase Greatly, to further improve solidification effect.

Detailed description of the invention

Fig. 1 is a kind of overall structure diagram of jet grouting pile driving machine of the utility model；

Fig. 2 is the structural schematic diagram of the current divider of the utility model；

Fig. 3 is the structural schematic diagram of the mesoporous drilling rod of the utility model；

Fig. 4 is the structural schematic diagram of the hollow drill bit of the utility model；

Fig. 5 is the structural schematic diagram of the power head rack of the utility model.

Label declaration in attached drawing:

1, the first deflecting guide wheel；2, tower bar core bar；3, wirerope；4, tower bar casing；5, lifting lug；6, power head rack；7, Motor；8, speed reducer；9, hydraulic chuck；10, support baseboard；11, the first commutation connection；12, final stage hydraulically extensible pushing rod sleeve Pipe；13, the second commutation connection；14, the first changed course hydraulic cylinder push rod；15, intermediate hydraulically extensible push rod tube；16, non-telescope to push away Rod bush；17, third commutation connection；18, the second changed course hydraulic cylinder push rod；19, front end tower bar support frame；20, rotary work Platform；21, rotation support；22, supporting table；23, front support leg；24, voluntarily running gear；25, rear end supporting leg；26, whole Workbench；27, wirerope elevator rotating cylinder；28, rear end tower bar support frame；29, hydraulic workstation；30, the second deflecting guide wheel；31, Support stress slot；311, connectiing shaft head；312, shaft；313, air deflector shell；314, upper bearing；315, sealing ring；316, Slurries A distributor chamber；317, high pressure gas distributor chamber；318, gas is taken over；319, gas service pipes；320, slurries B distributor chamber； 321, lower bearing；322, air deflector connects disk；323, fixing bolt；324, slurries B distribution pipe；325, slurries B takes over；326, slurries A distribution pipe；327, slurries A takes over；328, drilling rod top connects disk；329, drilling rod shell；330, drilling rod air shooter；331, Drilling rod slurries A delivery pipe；332, drilling rod slurries B delivery pipe；333, drilling rod lower part connects disk；334, drill bit connects disk；335, drill bit is starched Liquid B delivery pipe；336, drill bit slurries A delivery pipe；337, drill bit air shooter；338, drill bit shell；339, high pressure gas sprays Mouth；340, slurries B nozzle；341, slurries A nozzle；342, drill bit.

Specific embodiment

For the content for further appreciating that the utility model, the utility model is made now in conjunction with the drawings and specific embodiments detailed Description.

Embodiment 1

As shown in Figure 1, a kind of jet grouting pile driving machine of the present embodiment, including voluntarily running gear 24, Integral operating platform 26, Rotation working platform 20, support transfer bar mechanism, steel wire rope hoisting mechanism, tower bar mechanism, power head and drill rod mechanism, wherein whole Workbench 26 is set in voluntarily running gear 24, entire rotary churning pile machine can be driven to be moved by voluntarily running gear 24 It is dynamic, consequently facilitating replacement construction area.The rotation working platform 20 is located at the top of Integral operating platform 26 and can be relative to whole Globe body working table 26 is rotated, and support transfer bar mechanism is worked with rotary respectively using multistage scalable hydraulic push rod, both ends Platform 20 and tower bar mechanism are hinged, and support and also pass through respectively between transfer bar mechanism and rotation working platform 20 and tower bar mechanism The second changed course changed course hydraulic cylinder push rod 14 of hydraulic cylinder push rod 18, first is connected.Support push rod is driven by rotation working platform 20 Mechanism and tower bar mechanism and drill rod mechanism are rotated, and the collapsing length of support transfer bar mechanism is adjusted, so as to After making single telephone-moving can rotary churning pile operating area area effectively increased, and be conducive to improve construction efficiency.Wherein, second Changed course hydraulic cylinder push rod 18 is used to position vertical postrotational support transfer bar mechanism, and the first changed course hydraulic cylinder push rod 14 is used It is adjusted in the angle to tower bar mechanism and drill rod mechanism, it is made to rotate to be vertical direction, applied consequently facilitating carrying out rotary churning pile Work.Power head and drill rod mechanism are equipped with by steel wire rope hoisting mechanism in the tower bar mechanism of the present embodiment, by controlling steel wire Rope hoisting mechanism moves up and down power head and drill rod mechanism along tower bar mechanism length direction, applies to carry out rotary churning pile Work.

Embodiment 2

A kind of jet grouting pile driving machine of the present embodiment, structure is substantially with embodiment 1, and difference essentially consists in: this implementation Example support transfer bar mechanism include non-telescope push rod tube 16 and be successively set in inside non-telescope push rod tube 16 at least one The intermediate hydraulically extensible push rod tube 15 of grade and final stage hydraulically extensible push rod tube 12, wherein the tail end of non-telescope push rod tube 16 is logical It crosses commutation section to be connected with the center of rotation working platform 20, the free end of final stage hydraulically extensible push rod tube 12 passes through the first commutation Connection 11 is hinged with tower bar mechanism.In the present embodiment the both ends of the first changed course hydraulic cylinder push rod 14 respectively with final stage is hydraulic stretches Contracting push rod tube 12 and tower bar mechanism are hinged, to allow tower bar after reaching and needing the position of operation, make to stretch out Tower bar rotates within the scope of 90 degree, i.e., is perpendicular to ground direction by level transformation angle.The second changed course hydraulic cylinder push rod 18 both ends are hinged with rotation working platform 20 and non-telescope push rod tube 16 respectively, wherein final stage hydraulically extensible push rod tube 12 with non-telescope push rod tube 16 on respectively correspond equipped with second commutation connection 13, third commutation connection 17.

Embodiment 3

A kind of jet grouting pile driving machine of the present embodiment, structure is substantially with embodiment 2, and difference essentially consists in: this implementation The tower bar mechanism of example is multistage scalable hydraulic column rod structure comprising tower bar core bar 2 and is successively set in outside tower bar core bar 2 Portion, and pass through the multi-stage column rod bush 4 of hydraulic-driven, it is adjusted by the collapsing length to tower bar mechanism, so as to have Effect increases construction depth.Specifically, tower bar core bar 2 first stretches out after tower bar is vertical, other grade of hydraulic-driven is then successively stretched out Scalable tower bar casing 4 is to required tower bar height.The bottom of the tower bar mechanism is equipped with support baseboard 10, therefore works as and pass through Voluntarily running gear 24 transports rotary churning pile machine to region to be onstructed, and when tower bar mechanism is rotated to vertical state, Ke Yitong It crosses support baseboard 10 to be supported tower bar mechanism, to guarantee the stability of its structure.The steel wire rope hoisting mechanism of the present embodiment Including wirerope elevator rotating cylinder 27, deflecting guide wheel and wirerope 3, wherein wirerope elevator rotating cylinder 27 is fixedly installed in overall work On platform 26,3 one end of wirerope is fixed on wirerope elevator rotating cylinder 27, and the other end is led around the second deflecting in tower bar mechanism Wheel 30 and the first deflecting guide wheel 1 are fixedly linked with the lifting lug 5 in power head rack 6, and the power head is installed on power head rack 6 On.The power head includes the motor 7, speed reducer 8 and hydraulic chuck 9 being sequentially connected, and motor 7 is installed on power head rack 6 On, the slow-speed shaft of speed reducer 8 is connected by hydraulic chuck 9 with drill rod mechanism.When by the first changed course hydraulic cylinder push rod 14 by tower After linkage rotates to be vertical state, power head machine can be sling and put down along tower bar mechanism direction by steel wire rope hoisting mechanism Frame, so that drill rod mechanism be driven to move up and down.

Embodiment 4

A kind of jet grouting pile driving machine of the present embodiment, structure is substantially with embodiment 3, and difference essentially consists in: this implementation The voluntarily running gear 24 of example uses crawler travelling device (existing crawler belt moving structure), and the front end of Integral operating platform 26 is equipped with Front end tower bar support frame 19 (it being carried out when tower bar mechanism is fallen horizontally-supported) and front support leg 23, Integral operating platform 26 Rear end is equipped with rear end tower bar support frame 28 and rear end supporting leg 25, and Integral operating platform 26 is equipped with supporting table 22, supporting table 22 On be equipped with rotation support 21, rotation working platform 20 by rotation support 21 rotation is installed on Integral operating platform 26, that is, revolve Rotatable workbench 20 can be rotated left and right relative to Integral operating platform 26 (can be rotated between rotation support 21 and supporting table 22 It is connected, specifically rotates driving method and use the prior art, be not so limited, for example driven using servo motor, only It can be realized and rotation working platform 20 is driven to be rotated relative to Integral operating platform 26).Hydraulic work in the present embodiment Make station 29 to be fixedly installed on rotation working platform 20, can be rotated with rotation working platform 20.

Embodiment 5

A kind of jet grouting pile driving machine of the present embodiment, structure is substantially with embodiment 4, and difference essentially consists in: this implementation Air deflector is equipped between the hydraulic chuck 9 and drill rod mechanism of example, as shown in Fig. 2, the air deflector includes air deflector shell 313 and turns (inner upper end of air deflector shell 313 and lower end are respectively equipped with top to the dynamic shaft 312 being installed on inside air deflector shell 313 Bearing 314 and lower bearing 321, shaft 312 are rotatablely installed in upper bearing 314 and lower bearing 321), 312 one end of shaft Being fixedly linked by the hydraulic chuck 9 of connectiing shaft head 311 and power head, (hydraulic chuck 9 clamps connectiing shaft head 311, makes air deflector Shaft 312 and power head group be combined into the entirety that can be rotated together), the other end is fixedly linked with drill rod mechanism.This reality It applies the cavity in example between shaft 312 and air deflector shell 313 and slurries A distributor chamber 316, high pressure is divided by sealing ring 315 Gas distributing chamber 317 and slurries B distributor chamber 320, three distributor chambers respectively with slurries A adapter tube 327, gas adapter tube 318 and slurries B adapter tube 325 is connected, and passes through slurries A distribution pipe 326, gas service pipes 319 and slurries B distribution pipe 324 and drilling rod machine respectively Nozzle on structure is connected.

The drill rod mechanism of the present embodiment includes at least one level hollow drill pipe being successively detachably connected and hollow drill bit, in conjunction with Fig. 3, Fig. 4, be equipped in the hollow drill pipe and hollow drill bit respectively with slurries A distribution pipe 326, gas service pipes 319 and slurry Slurries A delivery pipe, air shooter and the slurries B delivery pipe that liquid B distribution pipe 324 is connected, the slurries in the hollow drill bit A delivery pipe, air shooter and slurries B delivery pipe respectively with slurries A nozzle 341, high pressure gas nozzle 339 and slurries B nozzle 340 are connected, and slurries A nozzle 341, slurries B nozzle 340 and high pressure gas nozzle 339 are successively set with and form three-casing structure.

Specifically, hollow drill pipe at different levels includes drilling rod shell 329 in the present embodiment, drilling rod gas is equipped with inside hollow drill pipe Body delivery pipe 330, drilling rod slurries A delivery pipe 331 and drilling rod slurries B delivery pipe 332, the hollow drill bit includes drill bit shell 338, hollow drill bit is interior to be equipped with drill bit air shooter 337, drill bit slurries A delivery pipe 336 and drill bit slurries B delivery pipe 335.Institute The lower end for stating air deflector shaft 312 is equipped with the air deflector cooperated with hollow drill pipe and connects disk 322, the both ends difference of the hollow drill pipe It is correspondingly provided with that drilling rod top connects disk 328 and drilling rod lower part connects disk 333, and the upper end of hollow drill bit is equipped with and connects disk with drilling rod lower part 333 drill bits matched connect disk 334.It is above-mentioned it is mutually matched connect disk and respectively correspond be processed as mutually matched convex surface and concave surface Structure, and by seal polyurethane washer be sealed it is connected.In the present embodiment the two opposite side walls of hollow drill bit be equipped with pair Claim two groups of nozzle assemblies of Relative distribution, drill bit air shooter 337, drill bit slurries A delivery pipe 336 and drill bit slurries B conveying Pipe 335 is connected by the way that a horizontal pipeline is corresponding with the nozzle of hollow drill bit two sides respectively, the drill bit 342 of hollow drill bit bottom end Using three-wing bit.

Embodiment 6

The super-pressure jet grouting pile construction method of the present embodiment, using the rotary churning pile machine of embodiment 5, by rotary churning pile machine Structure optimizes, so as to effectively expand after single telephone-moving can rotary churning pile operating area area and single whirl spraying apply The depth of work substantially increases construction efficiency, construction method the following steps are included:

Step 1: being unloaded after being transported the rotary churning pile machine near construction site with trailer, then by voluntarily walking Stake machine is moved to Specific construction position by system 24, and hydraulic lifting supporting leg is lowered into respective appropriate location, makes overall work 26 face of platform is in the state of parallel water plane；

It is risen Step 2: support transfer bar mechanism is first vertically centainly rotated angular increment, then horizontally rotates one again Determine angle, final stage hydraulically extensible push rod tube 12 first stretches out at this time, and then other hydraulically extensible push rod tubes at different levels stretch out step by step Afterwards, tower bar mechanism is sent to rotary-spraying construction position is prepared, the first changed course hydraulic cylinder push rod 14 is then recycled to revolve tower bar mechanism It changes into vertically perpendicular to horizontal plane direction, and contacts tower bar bottom with earth's surface firm stable；

Step 3: power head to be sling to the position that can install air deflector and drill rod mechanism by steel wire rope hoisting mechanism It sets, air deflector, hollow drill pipe and hollow drill bit is assembled respectively and are installed on power head, and make slurries A distribution pipe 326, gas Distribution pipe 319, slurries B distribution pipe 324 pass through hollow drill pipe and the slurries A delivery pipe in hollow drill bit, air shooter respectively It is connected with slurries B delivery pipe with corresponding nozzle.

Specifically, hydraulic chuck 9 is first fixed the slow-speed shaft of the top shaft of air deflector and speed reducer 8 is concentric, and use liquid Pressure clamps, while air deflector is also fixed on the support stress in power head rack by the fixing bolt 323 on air deflector shell 313 In slot 31 (as shown in Figure 5), to realize the fixation of air deflector shell 313, air deflector shell 313 can also be fixed with tower bar mechanism It is connected, as long as realizing that it is fixedly mounted.The top for connecing disk and first order drilling rod of air deflector lower end connects disk and connects disk by two Intermediate polyurethane seal gasket and screw rod is fastened and is sealed, and realizes the high-pressure gas pipelines in air deflector, super-pressure High pressure gas, super-pressure slurries A pipeline, super-pressure in slurries A pipeline, super-pressure slurries B pipeline and first order hollow drill pipe Slurries B pipeline is connected, and during power head is constantly sling, is connect the top of second level hollow drill pipe using connecting screw The lower part of disk, polyurethane seal gasket and drilling rod in the first order connects disk and is connected and sealed, and keeps the high pressure in two drilling rods Gas, super-pressure slurries A pipeline, super-pressure slurries B pipeline communicate respectively, after in the above way connecting final stage hollow drill pipe, then It the lower part of final stage hollow drill pipe is connect into disk connects disk with the top of hollow drill bit and be connected, make the high pressure gas in air deflector in rotation axis Body pipeline, super-pressure slurries A pipeline, super-pressure slurries B pipeline are connected respectively on two group of three bushing type nozzle on drill bit, China and foreign countries' ring spray mouth is high pressure gas nozzle, and sublevel is super-pressure slurries B nozzle, and intercooler core is super-pressure slurries A nozzle.

Step 4: unclamping lifting wirerope 3, hollow drill bit is set to sink down into Horizon by gravity, then drive motor 7 It is drilled down into drill bit 342 to the bottommost for needing rotary-spraying construction, is passed through super-pressure slurries A, super-pressure into air deflector at this time Slurries B and high pressure gas, three kinds of media are lateral along three bushing type nozzles with the pattern of high pressure annular airflow package slurries A, B It ejects, the whirl spraying pressure of super-pressure slurries A and super-pressure slurries B are 30-50MPa, the preferred 40MPa of the present embodiment, high pressure gas The whirl spraying pressure of body is 0.8MPa-1.3MPa, the preferred 1MPa of the present embodiment, and cyclone nozzle is mentioned upwards during rotating-spray It draws, the ratio between rotation speed and pull rate of cyclone nozzle are 0.5-1.0, and the high-pressure jet whirl spraying of slurries A, B go out rear and weak base Plinth soil shear failure forms a stirring body, when nozzle sprays superficial layer of the jet stream close to weak fault, it will see that whirl spraying is penetrated The perturbation action to surface is flowed, stop gas supply at this time and for slurry, drill rod mechanism is revolved into extraction earth's surface.

The slurries A is soil solidification cementitious material, and slurries B is the catalyst of slurries A, specifically, in the present embodiment Slurries A uses No. 32.5 portland slag cements, and slurries B uses waterglass, their mixture has extremely strong gelatification Effect, by the way of super-pressure rotary jet grouting, slurries A after slurries B is excited and is catalyzed portland slag cement can with it is soft The weak soil body is more effective, is sufficiently mixed more quickly, and the reaction of spot polymers, hydration reaction and pozzolanic reaction, so that whole A soft foundation is solidified and is hardened, and has the use value for being further developed as industrial construction land used and building site.Separately Outside, it under the collective effect of high pressure cylinder slurries and its outer ring circling gas flow, destroys Unfavorable geology construction, rigid body, partly glue Stagnant body, viscous body impact agitation energy significantly increase, slurries are stirred with the soil body in weak fault and are mixed.

Step 5: tower bar mechanism is moved to next rotation by support transfer bar mechanism or the Telescopic of tower bar mechanism Preventing slurry injection position carries out rotary jet grouting operation, the stirring body and a upper stirring body intersection constructed that rotary jet grouting is formed, After second stirring body rotary-spraying construction, successively carry out third, the 4th ... the constructing operation of n-th stirring body, when Rotary churning pile machine in the position when construction area reach maximum construction area, and the stirring body region constructed earliest has had been cured (it is more than or equal to 0.5MPa) when certain bearing strength, drives rotary churning pile machine to move integrally to the area by voluntarily running gear Drill rod mechanism is inserted into the region of not rotary-spraying construction by domain, carries out rotary-spraying construction, until entire weak fault region is solidified It reinforces.

When the depth that whirl spraying operation needs is more than the height after scalable tower bar casing all stretches out, can divide once with The upper tandem compound for carrying out drilling rod, i.e., after the concatenated drill bit test a to depth of first time drilling rod, by level-one drilling rod and water conservancy diversion Device disengages, and carries out second of drilling rod series connection, after being connected in series to a new whirl spraying depth, drilling rod is close by connecing disk after connecting twice Envelope is connected, and for the whirl spraying hollow drill bit of high pressure jet grouting with the series connection of borer drill rod, can extend to depth is more than 100m's Soft soil region, when whirl spraying when operation, the pull rate of whirl spraying hollow drill bit is 0.3-0.5m/min.Superelevation is used in whirl spraying Mud jacking liquid pump increases the speed of slurries cutting soil jet stream, and range increases, and stirring radius can achieve 5 meters or more, operation effect Rate improves.In addition, the everything of jet grouting pile driving machine can pass through liquid other than the series connection operation for changing multistage drilling rod Hydraulic being driven of pressure station distribution, high degree of automation.

Schematically the utility model and embodiments thereof are described above, description is not limiting, attached drawing Shown in be also one of the embodiments of the present invention, actual structure is not limited to this.So if this field Those of ordinary skill enlightened by it, without deviating from the purpose of the present invention, not inventively design Frame mode similar with the technical solution and embodiment, all should belong to the protection range of the utility model.

Claims (8)

1. a kind of jet grouting pile driving machine, it is characterised in that: including voluntarily running gear (24), Integral operating platform (26), rotary Workbench (20) supports transfer bar mechanism, steel wire rope hoisting mechanism, tower bar mechanism, power head and drill rod mechanism, wherein overall work Platform (26) is set in voluntarily running gear (24), and rotation working platform (20) is located at the top of Integral operating platform (26) and can phase Integral operating platform (26) is rotated；The support transfer bar mechanism is using multistage scalable hydraulic push rod, both ends difference It is hinged with rotation working platform (20) and tower bar mechanism, and supports transfer bar mechanism and rotation working platform (20) and tower bar mechanism Between also respectively by second changed course hydraulic cylinder push rod (18), first changed course hydraulic cylinder push rod (14) be connected；The tower bar mechanism It is upper that power head and drill rod mechanism are equipped with by steel wire rope hoisting mechanism.

2. a kind of jet grouting pile driving machine according to claim 1, it is characterised in that: the support transfer bar mechanism includes that nothing is stretched Contracting push rod tube (16) and at least one level centre hydraulically extensible pushing rod sleeve for being successively set in non-telescope push rod tube (16) inside (15) and final stage hydraulically extensible push rod tube (12) are managed, wherein the tail end of non-telescope push rod tube (16) passes through commutation section and rotation The center of formula workbench (20) is connected, the free end of final stage hydraulically extensible push rod tube (12) by the first commutation connection (11) with Tower bar mechanism is hinged.

3. a kind of jet grouting pile driving machine according to claim 1, it is characterised in that: the tower bar mechanism is that multistage can stretch Contracting hydraulic column rod structure comprising tower bar core bar (2) and be successively set in that tower bar core bar (2) is external, and pass through hydraulic-driven Multi-stage column rod bush (4)；The bottom of the tower bar mechanism is equipped with support baseboard (10).

4. a kind of jet grouting pile driving machine according to any one of claim 1-3, it is characterised in that: the wire rope roll Raising mechanism includes wirerope elevator rotating cylinder (27), deflecting guide wheel and wirerope (3), and wherein wirerope elevator rotating cylinder (27) is fixed pacifies Loaded on Integral operating platform (26), wirerope (3) one end is fixed on wirerope elevator rotating cylinder (27), and the other end bypasses tower bar Deflecting guide wheel in mechanism is fixedly linked with power head rack (6), and the power head is installed on power head rack (6).

5. a kind of jet grouting pile driving machine according to any one of claim 1-3, it is characterised in that: the power head packet The motor (7), speed reducer (8) and hydraulic chuck (9) being sequentially connected are included, motor (7) is installed on power head rack (6), The slow-speed shaft of speed reducer (8) is connected by hydraulic chuck (9) with drill rod mechanism.

6. a kind of jet grouting pile driving machine according to claim 5, it is characterised in that: the hydraulic chuck (9) and drilling rod Air deflector is equipped between mechanism, which includes that air deflector shell (313) and rotational installation are internal in air deflector shell (313) Shaft (312), shaft (312) one end is fixedly linked with power head, and the other end is fixedly linked with drill rod mechanism；Further , the cavity between the shaft (312) and air deflector shell (313) is divided into slurries A distributor chamber by sealing ring (315) (316), high pressure gas distributor chamber (317) and slurries B distributor chamber (320), three distributor chambers take over (327), gas with slurries A respectively Body adapter tube (318) and slurries B adapter tube (325) be connected, and respectively pass through slurries A distribution pipe (326), gas service pipes (319) and Slurries B distribution pipe (324) is connected with the nozzle on drill rod mechanism.

7. a kind of jet grouting pile driving machine according to claim 6, it is characterised in that: the drill rod mechanism includes successively may be used At least one level hollow drill pipe and hollow drill bit of dismantling connection, be equipped in the hollow drill pipe and hollow drill bit respectively with slurries Slurries A delivery pipe that A distribution pipe (326), gas service pipes (319) and slurries B distribution pipe (324) are connected, air shooter With slurries B delivery pipe, slurries A delivery pipe, air shooter and slurries B delivery pipe in the hollow drill bit respectively with slurries A Nozzle (341), high pressure gas nozzle (339) and slurries B nozzle (340) are connected, and slurries A nozzle (341), slurries B nozzle (340) and high pressure gas nozzle (339) is successively set with and forms three-casing structure.

8. a kind of jet grouting pile driving machine according to claim 7, it is characterised in that: the upper end of the shaft (312) is equipped with With the connectiing shaft head (311) of power head cooperation, lower end is equipped with the air deflector that cooperates with hollow drill pipe and connects disk (322), it is described in The both ends of empty drilling rod are correspondingly provided with that drilling rod top connects disk (328) and drilling rod lower part connects disk (333)；The two of the hollow drill bit are opposite Side wall is equipped with two groups of symmetrical nozzle assemblies, and the drill bit (342) of end uses three-wing bit；The Integral operating platform (26) both ends are respectively equipped with supporting leg and tower bar support frame.