CN105201522B - Soil pressing balance pipe jacking machine - Google Patents
Soil pressing balance pipe jacking machine Download PDFInfo
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- CN105201522B CN105201522B CN201510670097.1A CN201510670097A CN105201522B CN 105201522 B CN105201522 B CN 105201522B CN 201510670097 A CN201510670097 A CN 201510670097A CN 105201522 B CN105201522 B CN 105201522B
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- force transmission
- transmission ring
- casing
- balance pipe
- jacking machine
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Abstract
The invention discloses a kind of soil pressing balance pipe jacking machine, and it includes：Cutting tool, the back side of the Cutting tool are provided with Tu Cang；Cutter plate driver mechanism, the cutter plate driver mechanism include central cylinder, force transmission ring and the power source for driving the force transmission ring to rotate；The force transmission ring is connected to the back side of the Cutting tool, and the central cylinder is communicated in the Tu Cang；Housing, the housing are tubular, and the front end of the housing is connected to the drive case；Conveying worm, the conveying worm stretch into the enclosure interior by the rear end of the housing, and are communicated in the central cylinder.The soil pressing balance pipe jacking machine of the present invention has the advantages of compact-sized, dependable performance, simple operation, high automaticity.It under construction space exacting terms, can make full use of the free space of push pipe, on the premise of any function is not reduced, greatly reduce the overall dimensions of main frame.
Description
Technical field
The invention belongs to the realm of building construction, is related to a kind of soil pressing balance pipe jacking machine.
Background technology
With the development of urban construction, the density of population is significantly increased, and the vehicles are more and more, urban traffic congestion limitation
Urban development, pipe curtain subsurface excavation method turn into Underground Space Excavation into research emphasis.Pipe-roofing method is one kind of non-open cut technique,
Steel pipe is inserted in the horizontal direction into space to be excavated so as to shape using small-bore push-bench jacking mechanism in digging process
Pipe curtain.
At present, pipe-roof method construction is also widely used at home, but often equipment is simpler, experience mainly by construction and
Artificial operates to ensure the precision and efficiency of construction, and the especially usual steel pipe joint of pipe curtain jacking is longer, and active well space
It is limited so that requirement of the pipe-roof method constructing device to size is increasingly harsh.
The content of the invention
The present invention provides a kind of soil pressing balance pipe jacking machine, and the soil pressing balance pipe jacking machine can solve push pipe of the prior art
The problem of machine exists in use.
Technical scheme provides a kind of soil pressing balance pipe jacking machine, and it includes：
Cutting tool, the back side of the Cutting tool are provided with Tu Cang；
Cutter plate driver mechanism, the cutter plate driver mechanism include central cylinder, force transmission ring and for driving the power transmission
The power source that ring rotates；The force transmission ring is connected to the back side of the Cutting tool, and the central cylinder is communicated in the Tu Cang；
Housing, the housing are tubular, and the front end of the housing is connected to the drive case；
Conveying worm, the conveying worm stretch into the enclosure interior by the rear end of the housing, and are communicated in institute
State central cylinder.
The present invention it is soil pressing balance pipe jacking machine further improvement is that：The front of the Cutting tool is provided with center
Knife, bite and dual-pilot cutter.
The present invention it is soil pressing balance pipe jacking machine further improvement is that：The cutter plate driver mechanism also includes cylinder
Casing and crossed roller bearing；The central cylinder is arranged at the inside of the casing, the force transmission ring and crossed roller
Bearing is surrounded on the central cylinder；One end of the force transmission ring is stretched out from the front end of the casing and is fixedly connected on described
The back side of cutting, the other end of the force transmission ring are connected to the inner ring of the crossed roller bearing；The crossed roller bearing
Outer ring is fixedly connected on the inwall of the casing.
The present invention it is soil pressing balance pipe jacking machine further improvement is that：The power source is fixedly installed in the casing
The end plate of rear end；The power source includes motor, decelerator and little gear；The motor passes through described in decelerator driving
Pinion rotation, the inner ring of the crossed roller bearing is internal gear, and the little gear internal messing of the power source is in the intersection
The inner ring of roller bearing.
The present invention it is soil pressing balance pipe jacking machine further improvement is that：It is provided between the force transmission ring and the casing
Lip-type packing.
The present invention it is soil pressing balance pipe jacking machine further improvement is that：The housing includes procapsid and back casing,
The front end of the procapsid is connected to the cutter plate driver mechanism, before the rear end of the procapsid is socketed on the back casing
End；The enclosure interior is provided with multiple hinged oil cylinders, and one end of the hinged oil cylinder is articulated with the inwall of the procapsid, its
The other end is articulated with the inwall of the back casing；Sealing ring is provided between the procapsid and the back casing.In the present invention
Soil pressing balance pipe jacking machine tunneling process in, by controlling the flexible of hinged oil cylinder to adjust between procapsid and back casing
The angle of axis, so as to change the posture of soil pressing balance pipe jacking machine and tunneling direction.
The present invention it is soil pressing balance pipe jacking machine further improvement is that：Multiple buckles are provided with the outside of the back casing
Protect projection；The buckle protection projection is wedge shape, and the buckle protects the sophisticated towards the front end of the back casing of projection.
The present invention it is soil pressing balance pipe jacking machine further improvement is that：The conveying worm includes conveying cylinder, spiral shell
Bar, gate and the screw drives mechanism for drive screw turns；One end of the conveying cylinder is communicated in the central tube
Body, its other end are communicated in the screw drives mechanism, and the screw drives mechanism is connected to the gate；The screw rod is set
In the conveying cylinder and the inside of the screw drives mechanism, the side of the screw rod is provided with helical blade.
The present invention it is soil pressing balance pipe jacking machine further improvement is that：The screw drives mechanism includes screw drives case
Body, force transmission ring, gear wheel and power source；The force transmission ring is installed on the screw drives box house by bearing, annular
The gear wheel be fixedly connected on the force transmission ring, be connected on the inside of the force transmission ring screw rod helical blade it is outer
Side edge；The power source includes motor, decelerator and little gear, and the motor drives the small tooth by the decelerator
Wheel rotates, and the little gear external toothing is in the gear wheel.
The present invention it is soil pressing balance pipe jacking machine further improvement is that：The gate is connected to the spiral shell by a bend pipe
Revolve drive mechanism；The gate includes door-plate, gate oil cylinder and two gate deckle boards；Two gate deckle boards are parallel to each other, peace
Opening loaded on the bend pipe, two gate deckle boards offer slurry outlet, and the door-plate is inserted in two gate deckle boards
Between, the gate oil cylinder is used to drive the door-plate to move back and forth between two gate deckle boards.
The soil pressing balance pipe jacking machine of the present invention has high excellent of compact-sized, dependable performance, simple operation, automaticity
Point.The free space of push pipe under construction space exacting terms, can be made full use of, is not reducing the premise of any function
Under, greatly reduce the overall dimensions of main frame.
Brief description of the drawings
Fig. 1 show the three-dimensional view of the soil pressing balance pipe jacking machine of the present invention；
Fig. 2 show the sectional view of the soil pressing balance pipe jacking machine of the present invention；
Fig. 3 is the sectional view of the cutter plate driver mechanism in the present invention；
Fig. 4 is the partial enlarged drawing at the little gear of power source in Fig. 3；
Fig. 5 is the sectional view of the housing in the present invention；
Fig. 6 is a kind of section view of the steel pipe joint of pipe curtain of the prior art；
Fig. 7 is the sectional view of the conveying worm in the present invention；
Fig. 8 is power source and the partial enlarged drawing of screw drives casing junction in Fig. 7；
Fig. 9 is the front view of the gate in the present invention；
Figure 10 is the section view of the gate in the present invention.
Embodiment
Illustrate embodiments of the present invention below by way of specific instantiation, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through specific realities different in addition
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.
The soil pressing balance pipe jacking machine of the present invention is introduced below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, soil pressing balance pipe jacking machine of the invention includes Cutting tool 10, cutter plate driver mechanism 20, shell
Body 30 and conveying worm 40.The back side of Cutting tool 10 is provided with native storehouse 12.Cutter plate driver mechanism 20 includes central cylinder
21st, force transmission ring 24 and the power source 22 for driving force transmission ring 24 to rotate.Force transmission ring 24 is connected to the back of the body of Cutting tool 10
Face, central cylinder 21 are communicated in Tu Cang.Housing 30 is tubular, and the front end of housing 30 is connected to cutter plate driver mechanism 20.Spiral transferring
Send machine 40 to be stretched into by the rear end of housing 30 inside housing 30, and be communicated in central cylinder 21.The earth pressure balance of present invention during use
Push-bench is arranged at the end of steel pipe joint, for being tunneled inside soil layer.Driving of the Cutting tool 10 in cutter plate driver mechanism 20
Lower rotary cutting soil layer, soil enter to bury storehouse 12 through Cutting tool 10, and subsequent soil enters central cylinder 21 from native storehouse 12,
The conveying worm 40 for being communicated in central cylinder 21 is used to from central cylinder 21 transport soil to the tail of soil pressing balance pipe jacking machine
Portion.
As shown in figure 1, Cutting tool 10 is circle.The front of Cutting tool 10 be provided with center cutter 13, bite 14 with
And dual-pilot cutter 15.Center cutter 13, bite 14 and dual-pilot cutter 15 are used to shred soil pressure during Cutting tool 10 rotates
Balance the soil layer in front of push-bench.Native storehouse 12 is arranged at the back side of Cutting tool 10, and native storehouse 12 and Cutting tool 10 are integrated
Design.
As shown in Figures 2 and 3, cutter plate driver mechanism 20 specifically includes：Casing 28, crossed roller bearing 23, central cylinder
21st, force transmission ring 24 and power source 22.Casing 28 is cylinder, and central cylinder 21 is arranged at the inside of casing 28.Force transmission ring 24
And crossed roller bearing 23 is arranged at the inside of the casing and is surrounded on the outside of central cylinder 21.The force transmission ring of tubular
24 overlap with the cylindrical axis of casing 28.One end of force transmission ring 24 is stretched out and is bolted to connection from the front end of casing 28
In the back side of Cutting tool 10, the other end of force transmission ring 24 is bolted to the inner ring of crossed roller bearing 23.Intersect rolling
The outer ring of sub- bearing 23 is bolted to connection in the inner surface of the rear end end plate of casing 28.Between force transmission ring 24 and casing 28
Lip-type packing 25 is provided with, lip-type packing 25 is arranged at the inner side and outside of force transmission ring 24.Lip-type packing 25 can be with
Prevent space of the mud between force transmission ring 24 and casing 28 from penetrating into inside casing 28.
As shown in Figure 3 and Figure 4, power source 22 is fixedly installed in the outer surface of the rear end end plate of casing 28, in the present embodiment
Including 3 groups of power sources 22, the both sides and bottom of central cylinder extension 29 are respectively arranged at, in figure 3 central cylinder extension
The power source 22 of 29 both sides is not drawn.Power source 22 is used to drive force transmission ring 24 and Cutting tool 10 to be rotated.Each
Power source 22 includes a motor 221,222, two bearings 223 of one speed reducer, a bearing block 224 and a little gear 225.Subtract
Fast device 222 and motor 221 are fixedly installed in the rear end end plate of casing 28 by bearing block 224.As shown in figure 4, little gear 225
Gear shaft the inside of casing 28 is fixedly installed in by two bearings 223, motor 221 passes through the driving pinion of decelerator 222
225 rotate.The inner ring of crossed roller bearing 23 is internal gear, and the internal messing of little gear 225 of power source 22 is in crossed roller bearing
23 inner ring.Inwall in central cylinder extension 29 is provided with soil pressure case 26.
Shown in Fig. 1 and Fig. 5, housing 30 is tubular, and it includes procapsid 31 and back casing 32.The front end of the body of fore shell 31 connects
The rear end of cutter plate driver mechanism 20 is connected to, the rear end of procapsid 31 is socketed on the front end of back casing 32.Housing 30 is internally provided with
Multiple hinged oil cylinders 33, one end of hinged oil cylinder 33 are articulated with the inwall of procapsid 31, and its other end is articulated with back casing 32
Inwall.The number of hinged oil cylinder 33 is four in the present embodiment, and four hinged oil cylinders 33 are around the inwall for being distributed in housing 30, phase
45 ° are spaced between adjacent two hinged oil cylinders 33.Each hinged oil cylinder 30 includes a cylinder block and an oil cylinder piston cylinder, oil cylinder
The afterbody of cylinder body is articulated with the hinged oil cylinder seat 331 of the inwall of procapsid 31, and the head of oil cylinder piston cylinder is articulated with back casing 32
The hinged oil cylinder seat 332 of wall.In the tunneling process of the soil pressing balance pipe jacking machine of the present invention, by controlling stretching for hinged oil cylinder 33
Contracting can adjust the angle of axis between procapsid 31 and back casing 32, so as to change the posture of soil pressing balance pipe jacking machine and pick
Enter direction.
As shown in figure 5, sealing ring 321 is provided between procapsid 31 and back casing 32.Sealing ring 321 is used to prevent housing
Seam of the mud between procapsid 31 and back casing 32 outside 30 is penetrated into inside housing 30.In use, it is necessary to push up
The steel pipe joint entered is socketed on the rear end of back casing 32, and a circle sealing ring 323 is provided with the rear end of back casing, and sealing ring 323 is used
Penetrated into preventing mud from the seam between back casing 32 and steel pipe joint inside housing 30.
As shown in Figure 1 and Figure 5, the outside of back casing 32 is provided with multiple buckle protection projections 322；Buckle protects projection
322 be wedge shape, and buckle protects the sophisticated towards the front end of back casing 32 of projection 322.The bottom of buckle protection projection 322 passes through spiral shell
Bolt is fixedly connected on the inwall of back casing 32, and the side of back casing 32 is provided with opening, and buckle protects projection 322 from back casing 32
The opening of side is stretched out.The number of the projection 322 of buckle protection in the present embodiment is two or four, and four buckles protect projection 322
It is arranged at the both sides of back casing 32.
As shown in Figure 5 and Figure 6, it is necessary to which the outside of the steel pipe joint 50 of jacking is provided with prominent buckle 51, in jack-in process
In, steel pipe joint 50 is socketed on the afterbody of back casing 32, and buckle protection projection 322 is kept off in the front end of buckle 51.So, steel pipe joint 50
The hard foreign matter in prominent buckle 51 and soil layer can be avoided during the jacking of underground, which to collide, causes buckle 51 to become
Shape.In addition, buckle protection projection 322 is wedge shape, there is less resistance in jack-in process, can effectively reduce positioned at buckle
The jacking resistance that the buckle 51 at protection projection 322 rear is brought.
As shown in Figure 1 and Figure 7, conveying worm 40 includes conveying cylinder 42, screw rod 44, gate 45 and for driving spiral shell
The screw drives mechanism 41 that bar 44 rotates.One end of conveying cylinder 42 is communicated in central cylinder by central cylinder extension 29
21, its other end is communicated in screw drives mechanism 41.Screw drives mechanism 41 is connected to gate 45.Screw rod 44 is arranged at transport tube
The inside of body 42 and screw drives mechanism 41, the side of screw rod are provided with helical blade 441.Screw rod 44 and conveying cylinder 42 are same
Axle is set, and when screw rod 44 rotates, the soil edge inside central cylinder 21 is conveyed cylinder by the helical blade 441 of the side of screw rod 44
42 axial direction is delivered to the afterbody of conveying worm 40.
As shown in Figure 7 and Figure 8, screw drives mechanism 41 includes screw drives casing 415, force transmission ring 412, gear wheel 411
And power source 43.The outer sheath of force transmission ring 412 is provided with two bearings 413 and the gear wheel 411 of a ring-type.Force transmission ring
412 are installed on the inside of screw drives casing 415 by above-mentioned two bearing 413.The gear wheel 411 of annular is fixedly connected on biography
The outer surface of power ring 412, the inner side of force transmission ring 412 are connected to the outside of the helical blade 441 of screw rod 44 by way of welding
Edge.Power source 43 includes motor 431, decelerator 432 and little gear 434.Motor 431 drives small tooth by decelerator 432
Wheel 434 rotates.Motor 431 and decelerator 432 are fixedly installed in the end face of screw drives casing 415, and little gear 434 passes through two
Bearing 433 is installed on the inside of screw drives casing 415.The external toothing of little gear 434 is in gear wheel 411.The both ends of force transmission ring 412
U-shaped oil sealing 414 is provided between screw drives casing.
As shown in Fig. 7, Fig. 9 and Figure 10, the spiral that gate 45 is connected to screw drives mechanism 41 by a bend pipe 456 drives
Dynamic casing 415.Gate 45 includes door-plate 452, gate oil cylinder 451 and two gate deckle boards 453.Two gate deckle boards 453 are mutual
It is parallel, it is installed on the opening of bend pipe 456.Two gate deckle boards 453 offer slurry outlet 457, two gate deckle boards
453 slurry outlet 457 overlaps.Door-plate 452 is inserted between two gate deckle boards 453.Gate oil cylinder 451 is installed on door
The both sides of plate 452, for driving door-plate 452 to be moved back and forth between two gate deckle boards 453.When conveying worm 40 needs to lead to
When crossing gate 45 and discharging its internal soil, gate oil cylinder 451 extracts door-plate 452 out from two gate deckle boards 453, soil from
The slurry outlet discharge of gate deckle board 453.Door-plate 452 is inserted two gate frames by gate oil cylinder 451 after the completion of mud emission
In space between plate 453 so that door-plate 452 blocks the slurry outlet 457 of gate deckle board 453.
The soil pressing balance pipe jacking machine of the present invention has high excellent of compact-sized, dependable performance, simple operation, automaticity
Point.The free space of push pipe under construction space exacting terms, can be made full use of, is not reducing the premise of any function
Under, greatly reduce the overall dimensions of main frame.
Described above is only presently preferred embodiments of the present invention, not does any formal limitation to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, in the range of technical solution of the present invention is not departed from, when the technology contents using the disclosure above make a little change or repair
The equivalent embodiment for equivalent variations is adornd, as long as being the content without departing from technical solution of the present invention, the technology according to the present invention is real
Any simple modification, equivalent change and modification that confrontation above example is made, still fall within the scope of technical solution of the present invention
It is interior.
Claims (10)
- A kind of 1. soil pressing balance pipe jacking machine, it is characterised in that including：Cutting tool, the back side of the Cutting tool are provided with Tu Cang；Cutter plate driver mechanism, the cutter plate driver mechanism include central cylinder, force transmission ring and for driving the force transmission ring to turn Dynamic power source；The central cylinder extension is formed with central cylinder extension；The force transmission ring is connected to the Cutting tool The back side, the central cylinder is communicated in the Tu Cang；Housing, the housing are tubular, and the front end of the housing is connected to the cutter plate driver mechanism；The cutter plate driver mechanism Central cylinder extension endways be located at the enclosure interior with extending obliquely out, it is described to be used to drive the force transmission ring to rotate Power source be located at the central tube extension both sides and bottom；Conveying worm, the conveying worm stretch into the enclosure interior, the conveying worm by the rear end of the housing Including conveying cylinder, screw rod and screw drives mechanism for drive screw turns；One end of the conveying cylinder is in Heart cylinder extension is communicated in central cylinder, and the conveying cylinder endways are located at the enclosure interior, institute with extending obliquely out The other end for stating conveying cylinder is communicated in the screw drives mechanism, and the screw drives mechanism is located at the bottom of the conveying cylinder Portion；The screw coaxial is arranged at the conveying inner barrel and end is connected with the screw drives mechanism, the screw rod Side is provided with helical blade.
- 2. soil pressing balance pipe jacking machine as claimed in claim 1, it is characterised in that：The front of the Cutting tool is provided with center Knife, bite and dual-pilot cutter.
- 3. soil pressing balance pipe jacking machine as claimed in claim 1, it is characterised in that：The cutter plate driver mechanism also includes cylinder Casing and crossed roller bearing；The central cylinder is arranged at the inside of the casing, the force transmission ring and intersection rolling Sub- bearing is surrounded on the central cylinder；One end of the force transmission ring is stretched out from the front end of the casing and is fixedly connected on described The back side of Cutting tool, the other end of the force transmission ring are connected to the inner ring of the crossed roller bearing；The crossed roller axle The outer ring held is fixedly connected on the inwall of the casing.
- 4. soil pressing balance pipe jacking machine as claimed in claim 3, it is characterised in that：The power source is fixedly installed in the casing Rear end end plate；The power source includes motor, decelerator and little gear；The motor drives institute by the decelerator Pinion rotation is stated, the inner ring of the crossed roller bearing is internal gear, and the little gear internal messing of the power source is in the friendship Pitch the inner ring of roller bearing.
- 5. soil pressing balance pipe jacking machine as claimed in claim 3, it is characterised in that：Set between the force transmission ring and the casing There is lip-type packing.
- 6. soil pressing balance pipe jacking machine as claimed in claim 1, it is characterised in that：The housing includes procapsid and rear shell Body, the front end of the procapsid are connected to the cutter plate driver mechanism, and the rear end of the procapsid is socketed on the back casing Front end；The enclosure interior is provided with multiple hinged oil cylinders, and one end of the hinged oil cylinder is articulated with the inwall of the procapsid, Its other end is articulated with the inwall of the back casing；Sealing ring is provided between the procapsid and the back casing.
- 7. soil pressing balance pipe jacking machine as claimed in claim 6, it is characterised in that：Multiple cards are provided with the outside of the back casing Button protection projection；The buckle protection projection is wedge shape, and the buckle protects the sophisticated towards the front end of the back casing of projection.
- 8. soil pressing balance pipe jacking machine as claimed in claim 1, it is characterised in that：The conveying worm also includes gate；Institute State screw drives mechanism and be connected to the gate.
- 9. soil pressing balance pipe jacking machine as claimed in claim 8, it is characterised in that：The screw drives mechanism includes screw drives Casing, force transmission ring, gear wheel and power source；The force transmission ring is installed on the screw drives box house, ring by bearing The gear wheel of shape is fixedly connected on the force transmission ring, and the helical blade of the screw rod is connected on the inside of the force transmission ring Outer side edges edge；The power source includes motor, decelerator and little gear, and the motor is driven described small by the decelerator Pinion rotation, the little gear external toothing is in the gear wheel.
- 10. soil pressing balance pipe jacking machine as claimed in claim 8, it is characterised in that：The gate is connected to institute by a bend pipe State screw drives mechanism；The gate includes door-plate, gate oil cylinder and two gate deckle boards；Two gate deckle boards are mutually equal OK, the opening of the bend pipe is installed on, two gate deckle boards offer slurry outlet, and the door-plate is inserted in two gates Between deckle board, the gate oil cylinder is used to drive the door-plate to move back and forth between two gate deckle boards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510670097.1A CN105201522B (en) | 2015-10-13 | 2015-10-13 | Soil pressing balance pipe jacking machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510670097.1A CN105201522B (en) | 2015-10-13 | 2015-10-13 | Soil pressing balance pipe jacking machine |
Publications (2)
| Publication Number | Publication Date |
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| CN105201522A CN105201522A (en) | 2015-12-30 |
| CN105201522B true CN105201522B (en) | 2017-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510670097.1A Active CN105201522B (en) | 2015-10-13 | 2015-10-13 | Soil pressing balance pipe jacking machine |
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| CN106761801B (en) * | 2017-01-10 | 2018-08-03 | 佛山市康思达液压机械有限公司 | A kind of hard rock push-bench |
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| CN108625872A (en) * | 2018-07-17 | 2018-10-09 | 中国铁建重工集团有限公司 | A kind of push-bench |
| CN110195596A (en) * | 2019-06-03 | 2019-09-03 | 石家庄铁道大学 | A kind of model test earth pressure balanced push-bench analogy method and constructional device |
| CN112253222B (en) * | 2020-08-26 | 2022-05-10 | 中煤科工集团沈阳研究院有限公司 | Pipe jacking tunneling equipment for roadway rescue |
| CN112459799A (en) * | 2020-11-23 | 2021-03-09 | 张同勇 | Construction method of underground water supply pipeline |
| CN113279765B (en) * | 2021-05-08 | 2024-06-18 | 淮北冬傲信息技术有限公司 | Tunnel construction grinding device with high durability |
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| Publication number | Publication date |
|---|---|
| CN105201522A (en) | 2015-12-30 |
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Address after: No. 1099, No. 5, Wan Ping Nan Road, Xuhui District, Shanghai Patentee after: SHANGHAI TUNNEL ENGINEERING Co.,Ltd. Patentee after: Shanghai urban construction tunnel equipment Co., Ltd Address before: No. 1099, No. 5, Wan Ping Nan Road, Xuhui District, Shanghai Patentee before: SHANGHAI TUNNEL ENGINEERING Co.,Ltd. Patentee before: Shanghai Waigaoqiao tunnel machinery Co., Ltd |