CN207959199U - A kind of grouting behind shaft or drift lining Prefabricated hollow pipe tree root pilework - Google Patents

Abstract

A kind of grouting behind shaft or drift lining Prefabricated hollow pipe tree root pilework, belong to building field, cement mortar gate spool is provided in the Prefabricated hollow pipe, electric wire, Prefabricated hollow pipe docking section is provided with connector, connecting component is cylinder, cylinder internal water slurry casting pipe periphery, which is equably provided with, multiple radially slides part, it radially slides part and radially slides axis by what the setting of cement mortar irrigation pipe Slideslip was had time, inside set conduit and electric wire, line end is provided with miniature fusing and robs, miniature fusing, which robs to be connected to, radially slides the multiple positions of part, axis is radially slided to be connected to cement mortar irrigation pipe, electric wire top is connect with electric welding machine in Prefabricated hollow pipe, the utility model provides the bearing capacity that precast hollow pile pile can be improved, reduce the sedimentation of pile foundation, improve pile foundation periphery soil layer intensity, overcome grouting Post Grouting Technique long construction period, the shortcomings of complex process.

Description

A kind of grouting behind shaft or drift lining Prefabricated hollow pipe tree root pilework

Technical field

The utility model is related to a kind of pipe tree root pilework, more particularly to a kind of grouting behind shaft or drift lining Prefabricated hollow pipe root pile knot Structure belongs to building field.

Background technology

With the continuous development of real estate, depth of building is also higher and higher, flat of lofty tower, and basis is to close Key, only solid foundation can have the mansion into cloud.When constructing basis, be frequently in ground be pressed into foundation pile or Ground is got into the cave, and concrete is then poured into a mould, and forms the basis in building, and the foundation pile being pressed into ground is usually Prefabricated hollow pipe, stake End face is provided with flange, and multiple connecting holes are provided on flange face, the connection being inserted into connecting hole is utilized between Prefabricated hollow pipe Pin connects Prefabricated hollow pipe along vertical direction, and Fig. 7 is that the longitudinal profile of existing precast hollow tubulose body in left-right direction shows It is intended to.In figure upper and lower is maintained using connecting pin 41 among previous Prefabricated hollow pipe 40a and latter Prefabricated hollow pipe 40b To it is vertical, be respectively arranged with upper method on the interface of previous Prefabricated hollow pipe 40a and latter Prefabricated hollow pipe 40b Multiple connecting holes are offered respectively i.e. on blue 42a, lower flange 42b, upper flange 42a and the faces lower flange 42b：Upper connecting pin bores 43a With lower connecting pin bores 43b（With reference to Fig. 3）, 44 be the centre bore of Prefabricated hollow pipe.In drilling cast stake technology, drill bit is in a depthkeeping Bit diameter can be expanded on degree, the pourable root pile at periphery with protrusion is reduced the sedimentation of foundation pile with this, improves basis The bearing capacity of stake.

Precast hollow pile pile has the characteristics that speed of application is fast, and still, compared with root pile, there is sedimentation degree greatly, holds Carry the small weakness of power, root pile although the advantage that sedimentation is small, bearing capacity is big, due to being that site operation, scene are poured, need There is setting time, the shortcomings that accordingly, there exist construction precisions is slow, complicated construction technique.

In addition, construction industry ten in 2017 is opened in a new technology, perfusion slurry Post Grouting Technique is disclosed, method is to be perfused A period of time after stake, using the cement mortar gate spool and connected stake end being preset in stake, the note that is arranged at stake side Valve is starched, cement mortar is squeezed with pressure implanter, in stake end and slip casting around pile, reinforces pile bottom sediment loosened soil and pile body mudcake, and will Cement mortar penetrates into the splitting and densification unsaturation loose ground on periphery, reinforcement effect is played to soil layer around stake, to increase Big pile side resistance and end resistance, improve bearing capacity of single pile, reduce the sedimentation of pile foundation.

Although perfusion slurry Post Grouting Technique bearing capacity compared with wishing new technology increases, pile foundation settlement decreases, It is and prefabricated moreover, this method is cast-in-site construction there is also the disadvantage that speed of application is slow but compared with root pile Hollow pipe construction is compared or construction method is complicated, long construction period, but that there is bearing capacities is small for Prefabricated hollow pipe, and pile foundation is heavy The possibility of sedimentation drops, moreover, Prefabricated hollow pipe cannot form the structure of root pile at present.

In summary the forming method of several foundation piles, cuts both ways.How by collection the advantages of above-mentioned several method In in a kind of method, that is, the simple and quick property with Prefabricated hollow pipe, root pile prevent settleability, perfusion slurry grouting behind shaft or drift lining High-bearing capacity and reinforce pile body periphery soil layer intensity, can significantly mention construction quality and construction speed, this is also building The big project that industry technology expert is extremely concerned about.

Invention content

It is smaller for Prefabricated hollow pipe pile bearing capacity, the stake side stake loose intensity deficiency problem of subsoil matter, cast-in-place concrete tree Pile and grouting the problems such as Construction method of borehole cast technique is more complex and long construction period, the utility model provides a kind of grouting behind shaft or drift lining Prefabricated hollow pipe tree root pilework reduces the sedimentation of pile foundation its purpose is to improve the bearing capacity of precast hollow pile pile, improves The shortcomings of pile foundation periphery soil layer intensity overcomes grouting Post Grouting Technique long construction period, and construction is complicated, optimized construction method and is applied Work structure.

A kind of grouting behind shaft or drift lining Prefabricated hollow pipe tree root pilework, including Prefabricated hollow pipe, Prefabricated hollow pipe docking section connecting pin, It is provided with cement mortar gate spool in the Prefabricated hollow pipe, has been arranged between conduit, has run through live wire, Prefabricated hollow pipe in conduit Docking section is provided with connector, and cement mortar gate spool, conduit, electric wire and the correspondence on top are also equipped among connector and is connect Head, connecting component are cylinder, internal water slurry casting pipe periphery be equably provided with it is multiple radially slide part, radially slide part It is provided with by cement mortar gate spool Slideslip and radially slides axis, it is interior blank pipe to radially slide axis, inside sets conduit and electric wire, electric wire point For multiple ends, line end is provided with miniature welding gun, and miniature welding gun, which is connected to, radially slides the multiple positions of part, radially slides axis through water Slurry casting pipe is connected on external pressure slip casting machine, and electric wire is connected on electric welding machine in Prefabricated hollow pipe；

Further, it is provided with pressure sensor in the cement mortar gate spool, pressure sensor is connected to controller, control Device is connect with electric welding machine；

Further, it is described radially slide part and radially slide to seal between axis be slidably connected, it is multiple to radially slide between part It is provided with axial support；

Further, connecting pin bores is provided on the cylindrical end face, connecting pin bores is arranged in axial support；

Further, the cylinder internal water slurry casting pipe and radially sliding is interconnected between axis；

Further, the part that radially slides is more than inner circumferential side thickness in cylinder peripheral side thickness；

Further, the axis inner catheter that radially slides is concertina type structure, and electric wire is equipped with flexible surplus；

Further, the part top and bottom that radially slide are the gradient structure to middle shrinkage, the sliding of cylinder outer periphery Elastic Sliding gate is arranged in position to part up and down.

The good effect that the utility model has is：By the way that cement mortar gate spool, Neng Gouli are arranged in Prefabricated hollow pipe With slip casing by pressure machine by cement mortar along cement mortar gate spool in Prefabricated hollow pipe Inner extrusion to radially sliding part and connector Periphery, and can extruding radial sliding part will radially slide part by pressure and squeeze out connector periphery inside the connector, moreover it is possible to It is enough that the flange section of connector and its upper and lower Prefabricated hollow pipe is protected；It is led by being arranged in cement mortar gate spool Pipe, conduit is interior to run through electric wire, and the effect of conduit is that protection electric wire is squeezed, and plays shielding action to electric wire, protects electric wire Conduction be not damaged, so that it is guaranteed that wire end setting miniature welding gun can be under the action of electric welding machine by radial cunning Cement mortar extruded hole is melted in multiple positions outside moving part, is conducive to the outflow of cement mortar, is conducive to the soil to connector periphery Layer carries out extruding reinforcing, and the precast hollow tube portion for being conducive to connector and being connect with its upper and lower ends is protected；Pass through Connector is set between upper and lower two Prefabricated hollow pipes, is conducive to internal setting and is outwardly extending diametrically sliding part, be conducive to It extends outside under the pressure of cement mortar, advantageously forms stub, propped up by two the axial of end face up and down in connector Connecting pin bores is formed in support member, is conducive to say two Prefabricated hollow pipe connections, positioning up and down, is conducive to that Prefabricated hollow pipe is kept to exist Up rightness during pushing；By the way that axial support, Neng Gou is arranged in part gap in radially sliding for cylinder connector Prefabricated hollow pipe is played a supporting role during pushing, and can protect the integrality for radially sliding part, it is ensured that cement mortar exists It will not leak halfway in extrusion process, it can be ensured that radially slide radially sliding for part；Especially by radially sliding part The setting of axle center side radially slides axis, and makes to radially slide axis and radially slide part to keep being tightly connected in sliding process, energy It is enough to ensure in sealed states, to make to radially slide part by the strength slided to periphery；It is set by the way that axis inner catheter will be radially slided Concertina type structure is counted into, electric wire has flexible surplus, is conducive to the protection to electric wire in cement mortar extrusion process, is conducive to electricity Line extends protection of the rear tube to electric wire；It is designed to gradient structure to middle shrinkage by the way that part top and bottom will be radially slided, circle Elastic Sliding gate is arranged in position to cylinder outer periphery sliding part up and down, is conducive to being pressed down against for Prefabricated hollow pipe, Neng Goufang It only radially slides part to extend outwardly in process, soil enters inside cylinder；By the way that multiple miniature welding guns are arranged in electric wire one end, And multiple miniature welding guns is made to be fixedly connected respectively with the multiple positions radially slided on the outside of part, in the function of current that electric welding machine generates Under, it can will radially slide part and be fused into cement mortar extruded hole, and realize extruding purpose of the cement mortar to periphery, further protection connects The Prefabricated hollow pipe on fitting machine periphery, meanwhile, it is capable to be press-connected the dirt bed on part periphery, can reinforce pile bottom sediment loosened soil and Pile body mudcake, and cement mortar is penetrated into the splitting and densification unsaturation loose ground on periphery, soil layer around stake is played and is added Gu effect improves bearing capacity of single pile, reduces the sedimentation of pile foundation to increase pile side resistance and end resistance；By by radial cunning Moving part is designed to the thickness more than inner circumferential side in cylinder peripheral side thickness, is conducive to radially slide extension of the part to periphery；It is logical It crosses and controller is set between electric welding machine, slip casing by pressure machine and pressure sensor, can realize automation control, pass through setting Corresponding pressure parameter, current parameters can be automatically stopped the extruding of slip casing by pressure machine, automatically turn on electric welding machine to radially sliding The fusing of part and the program for being again turned on the extruding of cement slurry and stopping, it is of course also possible to be completed being operated manually Extruding to cement mortar, to programs such as the fusings of radial sliding part；By using connecting-piece structure, prefabricated sky can not only be played Connection function between heart pipe, and stub can be formed, foundation pile penetration resistance can be improved, and can be by connector Periphery grouting behind shaft or drift lining can carry out extruding reinforcing to periphery dirt bed, prevent caving in for periphery soil, improve the carrying of single pile Power further increases the safety on whole building basis, realizes the tree-root structure of Prefabricated hollow pipe, not only maintains original The speed of application of Prefabricated hollow pipe, and tree-root structure is realized, grouting behind shaft or drift lining structure realizes to ensure that construction quality Speed and quality Synchronous lifting.

Description of the drawings

The longitudinal profile schematic diagram of Fig. 1 precast hollow tubuloses body in left-right direction.

The cross-sectional structure schematic diagram on Fig. 2 connectors top.

Fig. 3 connectors side enlarged structure schematic diagram.

Fig. 4 longitudinal slide members slide to the longitudinal profile schematic diagram of the precast hollow tubulose body of periphery in left-right direction.

Fig. 5 connectors periphery squeezes the dress ornament structural schematic diagram after cement mortar.

The bubble face structural schematic diagram in the directions AC along Fig. 5 Fig. 6.

The longitudinal profile schematic diagram of the existing precast hollow tubulose bodies of Fig. 7 in left-right direction.

Label declaration：10- connectors, 11- radially slide part, 12- axial supports, 13- and radially slide axis, 14- cement Starch gate spool, 15- conduits, 16- electric wires, 16a- branch lines one, 16b- branch lines two, 17- gates, 18- pipe joints, 19- electricity The miniature welding gun of line banjo fixing butt jointing, 20-, 21- concertina types conduit, 21a- brasnch conducts one, 21b- brasnch conducts two, 23- sliding parts Block, 24- sliding axles block, 31- cement mortars, previous Prefabricated hollow pipe of 40a-, latter Prefabricated hollow pipe of 40b-, 41- connect Connecting pin bores, 44- centre bores under outbound, 42a- upper flanges, 42b- lower flanges, the upper connecting pin bores of 43a-, 43b-.

Specific implementation mode

The specific technical solution of the utility model is described in detail referring to the drawings.

A kind of grouting behind shaft or drift lining prefabricated pipe stub structure, Fig. 1 are that the longitudinal profile of precast hollow tubulose body in left-right direction shows It is intended to.Fig. 2 is the cross-sectional structure schematic diagram on 10 top of connector.Grouting behind shaft or drift lining prefabricated pipe stub structure includes Prefabricated hollow pipe, Prefabricated hollow pipe docking section connecting pin 41 is provided with cement mortar gate spool 14 in the Prefabricated hollow pipe, has been arranged between conduit 15, conduit 15 is interior to run through live wire 16, and Prefabricated hollow pipe docking section is provided with connector 10, cement is provided among connector 10 Starch gate spool 14, conduit, electric wire and 14 banjo fixing butt jointing of cement mortar gate spool on top, pipe joint 18, electric wire banjo fixing butt jointing 19, connector is cylinder, and 14 periphery of connector internal water slurry casting pipe, which is equably provided with, multiple radially slides part 11, diameter It is provided with to sliding part 11 by 14 Slideslip of cement mortar gate spool and radially slides axis 13, it is interior blank pipe to radially slide axis 13, radial Set conduit 15 and electric wire 16 in sliding axle 13, electric wire 16 divides for multiple ends, and line end is provided with miniature welding gun 20, miniature welding gun 20 It is connected to and radially slides more than 11 a position of part, in the present embodiment, one 16a- of branch line, two 16b of branch line are to lead to lateral cunning The branch wire of moving part 11 radially slides axis 13 and is connected on external pressure slip casting machine through cement mortar gate spool 14, precast hollow 16 top of electric wire is connect with electric welding machine in pipe, and each miniature welding gun 20 and branch wire periphery are provided with brasnch conduct, and Fig. 3 is 10 side enlarged structure schematic diagram of connector.In the present embodiment, specifically there are one 21a of brasnch conduct, 15 2 21b of brasnch conduct, In order to ensure to radially slide the sliding stroke of part 11, the inner circumferential side of sliding part is provided with sliding part block 23, is radially sliding The outside of axis 13 is provided with sliding axle block 24, after sliding part is reached home, plays barrier effect, at this point, will increase cement mortar Static pressure inside gate spool 14 illustrates to radially slide part sliding in place during this time.

Be provided with pressure sensor in the cement mortar gate spool 14, pressure sensor is connected to controller, controller with Electric welding machine connects.Both it can automatically control, and can also implement to be manually operated.

It is described radially slide part 11 and radially slide to seal between axis 13 be slidably connected, multiple radially slide sets between part 11 It is equipped with axial support 12.

Be provided with connecting pin bores on the cylindrical end face, connecting pin bores is arranged in axial support 12, specially on Connecting pin bores 43a and lower connecting pin bores 43b, diameter is corresponding with connecting pin 41 to coincide.

The cement mortar gate spool 14 of center setting and radially sliding is interconnected between axis 13.

The part 11 that radially slides is more than inner circumferential side thickness in cylinder peripheral side thickness.

13 inner catheter 15 of axis that radially slides is concertina type conduit 21, and end is connected with one 21a of brasnch conduct, branch Two 21b of conduit, electric wire 16 are equipped with flexible surplus, and one 16a of branch line is provided in one 21a of branch conduit, two 21b of brasnch conduct, is divided Two 16b of branch line.

11 top and bottom of part that radially slide are the gradient structure to middle shrinkage, on cylinder outer periphery sliding part 11 Lower portion is arranged Elastic Sliding gate 17, the end of sliding gate 17 close to radially sliding 11 top and bottom of part, with precast hollow It when pipe squeezes downwardly together, remains stationary as, only upper and lower two gates can be pressed to upper and lower when radially sliding part 11 and sliding To.

Grouting behind shaft or drift lining prefabricated pipe stub forming method refer to the attached drawing, wherein Fig. 4 is the prefabricated sky that longitudinal slide member slides to periphery The longitudinal profile schematic diagram of central, tubular body in left-right direction.Fig. 5 is that 10 periphery of connector squeezes the dress ornament structure after cement mortar 31 Schematic diagram.Fig. 6 is the bubble face structural schematic diagram in the directions AC along Fig. 5.Forming method includes above-mentioned grouting behind shaft or drift lining Prefabricated hollow pipe tree Pile structure grouting behind shaft or drift lining prefabricated pipe stub forming method is completed according to the following steps：

1. previous Prefabricated hollow pipe 40a extruding is buried using piling machine；

2. connecting pin 41 is arranged in the connecting pin bores of the previous upper surface Prefabricated hollow pipe 40a, set on connecting pin 41 Set connector 10；

3. connecting pin 41 is arranged in the upper surface of connector 10, latter Prefabricated hollow pipe 40b is lifted by crane, it is prefabricated by latter Cement mortar gate spool 14, conduit 15 and electric wire 16 cement mortar gate spool corresponding with 10 center of connector in hollow pipe 40b Connector, pipe joint 18 and electric wire banjo fixing butt jointing 19 connect；

It buries 4. latter Prefabricated hollow pipe 40b is pressed down against using piling machine, by cement mortar gate spool 14 and pressure Slip casting machine connects；

5. cement mortar 31 is poured by Opening pressure slip casting machine along cement mortar gate spool 14；

6. cement mortar 31 is radially slided through radially sliding to enter in axis 13 in part 11, under pressure, part is radially slided 11 radially outward circumferential direction movements, radially slide the peripheral direction that part 11 stretches to connector 10, at the same time, outside cylinder The vertically corresponding extruding movement of Elastic Sliding gate 17 for radially sliding the setting of about 11 position of part week, radially slides in pipe Concertina type conduit 21 extend outside；

7. radially sliding after part 11 extends outwardly, pressure rise in cement mortar gate spool 14 starts electric welding machine, multiple Miniature welding gun 20 will radially slide 11 interconnecting piece of part using high current and be molten into hole, and pressure declines in cement mortar gate spool 14；

8. being again turned on slip casing by pressure machine, cement mortar 31 is squeezed into cement mortar gate spool 14, cement mortar 31 is from fusing Cement mortar extruded hole flow direction radially slides 11 outside of part；

9. cement mortar 31 is press-connected 10 periphery soil layer of part, and 10 periphery of connector is surrounded；

10. closing slip casing by pressure machine, 10 periphery of multiple connectors forms tree root pilework using part 11 is radially slided；

The connection of multiple Prefabricated hollow pipes repeats the above steps.

The utility model can utilize slip casing by pressure machine by water by the way that cement mortar gate spool 14 is arranged in Prefabricated hollow pipe Mud 31 is along cement mortar gate spool 14 along Prefabricated hollow pipe Inner extrusion to radially sliding part 11 and connector periphery, and energy Enough extruding radial sliding parts 11 will radially slide part 11 by pressure and squeeze out 10 periphery of connector inside connector, additionally it is possible to right The flange section of connector 10 and its upper and lower Prefabricated hollow pipe is protected；By the way that conduit is arranged in cement mortar gate spool 14 15, conduit 15 is interior to run through live wire 16, and the effect of conduit 15 is that protection electric wire 16 is squeezed, and is played shielding to electric wire 16 and made With, protection electric wire 16 conduction be not damaged, so that it is guaranteed that the miniature fusing of 16 end set of electric wire rob 20 can be in electricity The 11 multiple positions in outside of part will be radially slided under the action of welding machine and melt 31 extruded hole of cement mortar, be conducive to the outer of cement mortar 31 Stream, is conducive to carry out extruding reinforcing to the dirt bed of 10 periphery of connector, is conducive to connector 10 and connects with its upper and lower ends The precast hollow tube portion connect is protected；By the way that connector 10 is arranged between upper and lower two Prefabricated hollow pipes, be conducive to interior Portion's setting is outwardly extending diametrically sliding part 11, is conducive to extend outside under the pressure of cement mortar 31, advantageously forms tree Stake, by forming connecting pin bores in the axial support 12 of two end faces up and down of connector 10, is conducive to upper and lower two Prefabricated hollow pipe connection, positioning are conducive to keep up rightness of Prefabricated hollow pipe during pushing；By being connected in cylinder Part 10 radially slides setting axial support 12 in 11 gap of part, can play support during Prefabricated hollow pipe pushes and make With the integrality for radially sliding part 11 can be protected halfway, it is ensured that cement mortar 31 will not leak in extrusion process, can be true Gauge is radially slided to sliding part 11；Axis 13 is radially slided especially by the axle center side setting for radially sliding part 11, And make to radially slide axis 13 and radially slide part 11 to keep being tightly connected in sliding process, it can ensure in sealed states, Make to radially slide part 11 by the strength slided to periphery；It is designed to concertina type knot by the way that 13 inner catheter 15 of axis will be radially slided Structure, electric wire 16 have flexible surplus, are conducive to the protection to electric wire 16 in cement mortar extrusion process, are conducive to the extension of electric wire 16 Protection of the rear tube 15 to electric wire 16；It is designed to gradient structure to middle shrinkage by the way that 11 top and bottom of part will be radially slided, circle Elastic Sliding gate 17 is arranged in about 11 position of cylinder outer periphery sliding part, is conducive to being pressed down against for Prefabricated hollow pipe, energy It enough prevents from radially sliding part 11 to extend outwardly in process, soil enters inside cylinder；It is multiple by being arranged in 16 one end of electric wire Miniature welding gun 20, and multiple miniature welding guns is made to be fixedly connected respectively with the multiple positions for radially sliding 11 outside of part, in electric welding machine Under the function of current of generation, it can will radially slide part 11 and be fused into cement mortar extruded hole, and realize the squeezing to periphery of cement mortar 31 Purpose is pressed, connector 10 and its Prefabricated hollow pipe on periphery, while the dirt bed on extrudable 10 periphery of connector are further protected, Pile bottom sediment loosened soil and pile body mudcake can be reinforced, and slurry is penetrated into the splitting and densification unsaturation loose ground on periphery, it is right Stake surrounding soil layer plays reinforcement effect, to increase pile side resistance and end resistance, improves bearing capacity of single pile, reduces the heavy of pile foundation Drop；The thickness more than inner circumferential side is designed in cylinder peripheral side thickness, be conducive to radially slide by the way that part 11 will be radially slided Extension of the part 11 to periphery；By the way that controller is arranged between electric welding machine, slip casing by pressure machine and pressure sensor, can realize Automation control sets corresponding pressure parameter, current parameters by realizing, can be automatically stopped slip casing by pressure machine extruding, Program of the electric welding machine to the fusing of radial sliding part 11 and the extruding and stopping that being again turned on cement mortar is automatically turned on, certainly, It can also be operated manually the extruding completed to cement mortar 31, to programs such as the fusings of radial sliding part 11；By using 10 structure of connector can not only play the connection function between Prefabricated hollow pipe, and can form root pile, and base can be improved Plinth stake penetration resistance, and can be prevented by the way that in 10 periphery grouting behind shaft or drift lining of connector, extruding reinforcing can be carried out to periphery dirt bed Caving in for periphery soil only occurs, improves the bearing capacity of single pile, further increases the safety on whole building basis, realize In the tree-root structure of Prefabricated hollow pipe, the speed of application of original Prefabricated hollow pipe is not only maintained, but also realizes tree-root structure, Grouting behind shaft or drift lining structure realizes speed and quality Synchronous lifting to ensure that construction quality.

Claims (9)

1. a kind of grouting behind shaft or drift lining Prefabricated hollow pipe tree root pilework, including Prefabricated hollow pipe, Prefabricated hollow pipe docking section connecting pin, It is characterized in that：It is provided with cement mortar gate spool in the Prefabricated hollow pipe, has been arranged between conduit, has run through live wire in conduit, Prefabricated hollow pipe docking section is provided with connector, and cement mortar gate spool, conduit, electric wire and top are also equipped among connector Corresponding joints, connecting component is cylinder, and cylinder internal water slurry casting pipe periphery is equably provided with multiple radial sliding Moving part, radially slides part and is provided with by cement mortar gate spool Slideslip and radially slide axis, and it is interior blank pipe to radially slide axis, inside sets and leads Pipe and electric wire, electric wire are divided into multiple ends, and line end is provided with miniature welding gun, and miniature welding gun, which is connected to, radially slides the multiple portions of part Position, radially slides axis and is connected on external pressure slip casting machine through cement mortar gate spool, electric wire is connected to electric welding in Prefabricated hollow pipe On machine.

2. a kind of grouting behind shaft or drift lining Prefabricated hollow pipe tree root pilework according to claim 1, it is characterised in that：The cement mortar Pressure sensor is provided in gate spool, pressure sensor is connected to controller, and controller is connect with electric welding machine.

3. a kind of grouting behind shaft or drift lining Prefabricated hollow pipe tree root pilework according to claim 1, it is characterised in that：It is described radial sliding It moving part and radially slides to seal between axis and is slidably connected, multiple radially slide is provided with axial support between part.

4. a kind of grouting behind shaft or drift lining Prefabricated hollow pipe tree root pilework according to claim 1, it is characterised in that：The cylinder Connecting pin bores is provided on end face, connecting pin bores is arranged in axial support.

5. a kind of grouting behind shaft or drift lining Prefabricated hollow pipe tree root pilework according to claim 1, it is characterised in that：The cylinder Internal water slurry casting pipe and radially sliding is interconnected between axis.

6. a kind of grouting behind shaft or drift lining Prefabricated hollow pipe tree root pilework according to claim 1, it is characterised in that：It is described radial sliding Moving part is more than inner circumferential side thickness in cylinder peripheral side thickness.

7. a kind of grouting behind shaft or drift lining Prefabricated hollow pipe tree root pilework according to claim 1, it is characterised in that：It is described radial sliding Moving part is more than inner circumferential side thickness in cylinder peripheral side thickness.

8. a kind of grouting behind shaft or drift lining Prefabricated hollow pipe tree root pilework according to claim 1, it is characterised in that：It is described radial sliding Moving axis inner catheter is concertina type structure, and electric wire is equipped with flexible surplus.

9. a kind of grouting behind shaft or drift lining Prefabricated hollow pipe tree root pilework according to claim 1, it is characterised in that：It is described radial sliding Moving part top and bottom are the gradient structure to middle shrinkage, and Elastic Sliding lock is arranged in position to cylinder outer periphery sliding part up and down Door.