CN113958331A - Adjustable supporting guide rail used in pipe jacking construction process - Google Patents
Adjustable supporting guide rail used in pipe jacking construction process Download PDFInfo
- Publication number
- CN113958331A CN113958331A CN202111226088.5A CN202111226088A CN113958331A CN 113958331 A CN113958331 A CN 113958331A CN 202111226088 A CN202111226088 A CN 202111226088A CN 113958331 A CN113958331 A CN 113958331A
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- fixed
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- pipe
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- 238000010276 construction Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000006073 displacement reaction Methods 0.000 claims abstract description 8
- 238000005516 engineering process Methods 0.000 description 9
- 238000003466 welding Methods 0.000 description 5
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses an adjustable supporting guide rail used in the pipe jacking construction process, which comprises: strutting arrangement, it is used for supporting the push pipe, adjusts the height of push pipe simultaneously, strutting arrangement still includes: workstation, straight-bar, bottom plate, roof, adjusting bolt, pillar, slide bar, base, button, spring, through-hole, fixing device, it is used for supporting and fixing between equipment and the ground, fixing device still includes: dwang, recess, extension rod, baffle, staple, spout, fixed block, spacing tooth, three hornblocks, reset spring, stop device, it is used for spacing to the push pipe, prevents to take place the displacement at the work process device push pipe, stop device still includes: limiting plate, cushion, connecting block, cavity, rack, spur gear, pivot, knob. Has the advantages that: through utilizing adjusting bolt for the roof removes, thereby drives the push pipe and removes, can be free adjust the height of push pipe, with be suitable for different construction conditions.
Description
Technical Field
The invention relates to the technical field of pipe jacking support guide rails, in particular to an adjustable support guide rail used in a pipe jacking construction process.
Background
The pipe jacking technology is a trenchless tunneling type pipeline laying construction technology used for municipal construction. The method has the advantages of no influence on the surrounding environment or less influence, small construction site and low noise. But also can be deeply operated underground, which is incomparable with the advantages of digging and burying pipes. However, the pipe jacking technology has the defects of long construction time, high construction cost and the like, the pipe jacking is a project which is not easy to construct well and is a less-known project, the trenchless engineering technology thoroughly solves the problems of damage to urban buildings, road traffic blockage and the like in pipeline embedding construction, and the advantages of the pipe jacking technology in soil stabilization and environmental protection are highlighted. The underground pipeline underground construction method is very important for cities with heavy traffic, dense population, numerous ground buildings and complex underground pipelines, creates a clean, comfortable and beautiful environment for the cities, adopts the trenchless technology which is a term frequently used in recent years, and relates to the technology of laying or replacing the underground pipelines by using the trenchless technology, namely digging a working well and a receiving well, and trenchless technology, namely digging no pipeline, and the diameter of a jacking pipe DN 400-4500. The pipe to be buried is pushed into the ground through the working well, and the pipe in the working well can pass through the ground for more than 2000 meters and can also pass through a curve to bypass some underground pipelines or barriers.
In the push pipe work progress, the guide rail that supports the push pipe adopts welding and concrete placement mode to fix on the design working face, the push pipe is laid earlier on the guide rail before going into the earth, undertake the direction function by the guide rail, go forward according to design elevation and direction in order to guarantee the push pipe, current push pipe supports the guide rail and can't adjust the height of push pipe, at the construction site, ground is unsmooth usually, current push pipe supports the height that the guide rail can't adjust the support according to the topography, thereby guarantee the push pipe level, at the during operation again simultaneously, the push pipe can shake, can cause the push pipe skew, thereby influence the precision.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an adjustable supporting guide rail used in the pipe jacking construction process.
In order to achieve the purpose, the invention adopts the following technical scheme: an adjustable support rail for use in a pipe jacking construction process, comprising:
strutting arrangement, it is used for supporting the push pipe, and the height to the push pipe that simultaneously can be free is adjusted to be suitable for different construction conditions, improved the application scope of device, strutting arrangement still includes: workstation, straight-bar, bottom plate, roof, adjusting bolt, pillar, slide bar, base, button, spring, through-hole, wherein, straight-bar and workstation sliding connection, bottom plate welded fastening is in the bottom of straight-bar, roof welded fastening is at the straight-bar top, adjusting bolt sliding connection is on the bottom plate, pillar welded fastening is in the below of workstation, a plurality of through-holes have been seted up on the pillar, slide bar and pillar sliding connection, base welded fastening is in the slide bar bottom, the button slides in the slide bar is inside.
Fixing device, it is used for supporting and fixing between equipment and the ground, has increased the intensity of device when fixed, and the guide rail damage that the effectual pipe jacking equipment overweight caused of preventing damages, fixing device still includes: dwang, recess, extension rod, baffle, staple, spout, fixed block, spacing tooth, three hornblocks, reset spring, wherein, the dwang rotates with the workstation through the round pin axle to be connected, the recess has been seted up to workstation bilateral symmetry, the spout has been seted up to the dwang inside, extension rod and dwang sliding connection, the baffle rotates with the extension rod bottom through the round pin axle to be connected, staple welded fastening is in the baffle bottom, fixed block welded fastening is on the extension rod top, spacing tooth welded fastening is on the spout inner wall, three hornblocks are in the inside sliding connection of fixed block, reset spring welded fastening is in three hornblocks bottoms.
Stop device, it is used for carrying on spacingly to the push pipe, prevents to take place the displacement at the work process device push pipe to influence the precision, prevent to take place the displacement at the work process device push pipe, stop device still includes: the novel gear rack is characterized by comprising a limiting plate, a cushion block, a connecting block, a cavity, a rack, a straight gear, a rotating shaft and a knob, wherein the limiting plate is connected on a top plate in a sliding mode, the cavity is formed in the top plate, the cushion block is fixedly glued on the limiting plate, the connecting block is fixedly welded at the bottom of the limiting plate, the rack is fixedly welded on the connecting block, the straight gear is meshed with the rack, the rotating shaft is coaxially fixedly welded on the straight gear, and the knob is coaxially fixedly welded at the bottom of the rotating shaft.
In the adjustable supporting guide rail used in the pipe jacking construction process, the straight rod penetrates through the workbench, the bottom plate is positioned below the workbench, the top plate is positioned above the workbench, and one end of the adjusting bolt is meshed with the workbench.
In the adjustable supporting guide rail used in the pipe jacking construction process, the sliding rod penetrates through the pillar, the button penetrates through the pillar, the spring is welded and fixed at the bottom end of the button, and the other end of the spring is welded and fixed inside the sliding rod.
In the adjustable supporting guide rail used in the pipe jacking construction process, the rotating rod is arranged inside the groove, the extension rod slides inside the sliding groove, and the other end of the return spring is welded and fixed inside the fixed block.
In the adjustable supporting guide rail used in the pipe jacking construction process, the connecting block slides in the cavity, the straight gear rotates in the cavity, the rotating shaft penetrates through the top plate, the knob is arranged below the top plate, and anti-skid patterns are arranged on the knob.
In the adjustable supporting guide rail used in the pipe jacking construction process, the permanent magnet is fixedly connected inside the groove, and the limiting teeth are meshed with the triangular blocks.
Compared with the prior art, the invention has the advantages that:
1. according to the adjustable supporting guide rail for the pipe jacking construction process, the top plate is moved by the adjusting bolt, so that the pipe jacking is driven to move, the height of the pipe jacking can be freely adjusted, different construction conditions are met, and the application range of the device is widened.
2. The adjustable supporting guide rail for the pipe jacking construction process, provided by the invention, fixes the device by using the rotating rod, so that the strength of the device is increased while fixing, and the guide rail damage caused by the overweight of pipe jacking equipment is effectively prevented.
3. According to the adjustable supporting guide rail for the pipe jacking construction process, the straight gear rotates by using the knob to drive the rack to move, so that the two limiting plates move to limit the pipe jacking, and the pipe jacking of the device is prevented from displacing in the working process, and the precision is prevented from being influenced.
Drawings
FIG. 1 is a schematic structural view of an adjustable support rail used in a pipe jacking construction process according to the present invention;
FIG. 2 is a front sectional view of an adjustable support rail for use in pipe jacking construction according to the present invention;
FIG. 3 is a side cross-sectional view of an adjustable support rail for use in pipe jacking construction according to the present invention;
FIG. 4 is an enlarged view of a portion A of an adjustable support rail for pipe jacking construction according to the present invention.
In the figure: 1 workbench, 11 straight rods, 12 bottom plates, 13 top plates, 14 adjusting bolts, 15 pillars, 16 sliding rods, 17 bases, 18 buttons, 19 springs, 110 through holes, 2 rotating rods, 21 grooves, 22 extending rods, 23 baffle plates, 24 fixing nails, 25 sliding grooves, 26 fixing blocks, 27 limiting teeth, 28 triangular blocks, 29 return springs, 3 limiting plates, 31 cushion blocks, 32 connecting blocks, 33 cavities, 34 racks, 35 straight gears, 36 rotating shafts, 37 knobs and 4 permanent magnets.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Referring to fig. 1 to 4, an adjustable support rail for use in a pipe jacking construction process, includes:
strutting arrangement, it is used for supporting the push pipe, and the height to the push pipe of freedom simultaneously adjusts to be suitable for different construction conditions, improved the application scope of device, strutting arrangement still includes: the working table 1, a straight rod 11, a bottom plate 12, a top plate 13, an adjusting bolt 14, a pillar 15, a slide rod 16, a base 17, a button 18, a spring 19 and through holes 110, wherein the straight rod 11 is connected with the working table 1 in a sliding manner, the bottom plate 12 is fixed at the bottom end of the straight rod 11 in a welding manner, the top plate 13 is fixed at the top of the straight rod 11 in a welding manner, the adjusting bolt 14 is connected onto the bottom plate 12 in a sliding manner, the pillar 15 is fixed below the working table 1 in a welding manner, a plurality of through holes 110 are formed in the pillar 15, the slide rod 16 is connected with the pillar 15 in a sliding manner, the base 17 is fixed at the bottom end of the slide rod 16 in a welding manner, the button 18 slides inside the slide rod 16, the top plate 13 is made to move by utilizing the adjusting bolt 14, so that the top pipe is driven to move, the height of the top pipe can be freely adjusted, different construction conditions are adapted, and the application range of the device is improved.
Fixing device, it is used for supporting and fixing between equipment and the ground, has increased the intensity of device when fixed, and the effectual guide rail that prevents push pipe equipment overweight and cause damages, and fixing device still includes: a rotating rod 2, a groove 21, an extension rod 22, a baffle plate 23, a fixing nail 24, a sliding groove 25, a fixing block 26, a limit tooth 27, a triangular block 28 and a return spring 29, wherein, the rotating rod 2 is rotatably connected with the workbench 1 through a pin shaft, two sides of the workbench 1 are symmetrically provided with grooves 21, the rotating rod 2 is internally provided with a chute 25, the extension rod 22 is slidably connected with the rotating rod 2, the baffle plate 23 is rotatably connected with the bottom end of the extension rod 22 through a pin shaft, the fixing nail 24 is fixedly welded at the bottom end of the baffle plate 23, the fixing block 26 is fixedly welded at the top end of the extension rod 22, the limiting tooth 27 is fixedly welded on the inner wall of the chute 25, the triangular block 28 is slidably connected in the fixing block 26, the reset spring 29 is fixedly welded at the bottom of the triangular block 28, the device is fixed by utilizing the rotating rod 2, the strength of the device is increased while the device is fixed, and the damage of the guide rail caused by the overweight of the pipe jacking equipment is effectively prevented.
Stop device, it is used for carrying on spacingly to the push pipe, prevents to take place the displacement at the work process device push pipe to influence the precision, prevent to take place the displacement at the work process device push pipe, stop device still includes: limiting plate 3, cushion 31, connecting block 32, cavity 33, rack 34, straight gear 35, pivot 36, knob 37, wherein, limiting plate 3 is sliding connection on roof 13, cavity 33 has been seted up to roof 13 inside, cushion 31 veneer is fixed on limiting plate 3, connecting block 32 welded fastening is in limiting plate 3 bottom, rack 34 welded fastening is on connecting block 32, straight gear 35 and rack 34 meshing, pivot 36 coaxial welded fastening is on straight gear 35, knob 37 coaxial welded fastening is in pivot 36 bottom, through utilizing knob 37, make straight gear 35 rotatory, drive rack 34 and remove, thereby make two limiting plate 3 remove, it is spacing to the ejector pipe, prevent that the push pipe from taking place the displacement at the course of the work device, thereby influence the precision.
The straight rod 11 penetrates through the workbench 1, the bottom plate 12 is located below the workbench 1, the top plate 13 is located above the workbench 1, one end of the adjusting bolt 14 is meshed with the workbench 1, the sliding rod 16 penetrates through the strut 15, the button 18 penetrates through the strut 15, the spring 19 is welded and fixed at the bottom end of the button 18, and the other end of the spring 19 is welded and fixed inside the sliding rod 16.
Dwang 2 sets up inside recess 21, and extension rod 22 slides inside spout 25, and reset spring 29 other end welded fastening is inside fixed block 26, and connecting block 32 slides inside cavity 33, and spur gear 35 rotates in cavity 33, and pivot 36 runs through roof 13, and knob 37 sets up in roof 13 below, has seted up anti-skidding decorative pattern on the knob 37, the inside fixedly connected with permanent magnet 4 of recess 21, spacing tooth 27 and the meshing of triangle piece 28.
In the invention, firstly, a pipe jacking device is placed above a top plate 13, then a knob 37 is rotated to drive a rotating shaft 36 to rotate, a straight gear 35 is rotated to drive a rack 34 to slide, a connecting block 32 is made to slide, a limiting plate 3 is driven to move oppositely, so that the pipe jacking device is limited, then a guide rail is placed at a proper position, the height of each support column 15 is respectively adjusted, a button 18 is pressed down, a spring 19 is compressed, the button 18 is made to not fix a slide rod 16, the slide rod 16 is pulled, so that the height of the support column 15 is adjusted, a workbench 1 is kept horizontal, when the height of the pipe jacking needs to be adjusted, only an adjusting bolt 14 needs to be rotated to make a bottom plate 12 move, the top plate 13 is driven to move, the height of the pipe jacking is adjusted, then a rotating rod 2 is pulled, an extension rod 22 is pulled according to the height of the support column 15, and a triangular block 28 slides towards the inside of a fixing block 26 under the action of a limiting tooth 27, thereby releasing the limit, making the baffle 23 abut against the ground, and simultaneously inserting the fixing nail 24 into the ground to fix and support the guide rail.
After the work is accomplished, when needs are dismantled, repeated above-mentioned operation can, when withdrawing extension rod 22, need be close to dwang 2 with magnet, magnet attracts three hornblocks 28, makes it slide to inside to make three hornblocks 28 break away from with spacing tooth 27, can withdraw extension rod 22, then make dwang 2 adsorb on permanent magnet 4.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The utility model provides an adjustable nodal pattern that uses in push pipe work progress supports guide rail which characterized in that includes:
strutting arrangement, it is used for supporting the push pipe, and the height to the push pipe that simultaneously can be free is adjusted to be suitable for different construction conditions, improved the application scope of device, strutting arrangement still includes: a workbench (1), a straight rod (11), a bottom plate (12), a top plate (13), an adjusting bolt (14), a support post (15), a sliding rod (16), a base (17), a button (18), a spring (19) and a through hole (110), wherein,
the straight rod (11) is connected with the workbench (1) in a sliding way,
the bottom plate (12) is welded and fixed at the bottom end of the straight rod (11),
the top plate (13) is welded and fixed on the top of the straight rod (11),
the adjusting bolt (14) is connected on the bottom plate (12) in a sliding way,
the support post (15) is welded and fixed below the workbench (1), a plurality of through holes (110) are arranged on the support post (15),
the slide rod (16) is connected with the support column (15) in a sliding way,
the base (17) is welded and fixed at the bottom end of the sliding rod (16),
the push-button (18) slides inside the slide bar (16),
fixing device, it is used for supporting and fixing between equipment and the ground, has increased the intensity of device when fixed, and the guide rail damage that the effectual pipe jacking equipment overweight caused of preventing damages, fixing device still includes: a rotating rod (2), a groove (21), an extension rod (22), a baffle plate (23), a fixing nail (24), a sliding groove (25), a fixing block (26), a limiting tooth (27), a triangular block (28) and a return spring (29), wherein,
the rotating rod (2) is rotatably connected with the workbench (1) through a pin shaft, grooves (21) are symmetrically formed in two sides of the workbench (1), a sliding groove (25) is formed in the rotating rod (2),
the extension rod (22) is connected with the rotating rod (2) in a sliding way,
the baffle (23) is rotatably connected with the bottom end of the extension rod (22) through a pin shaft,
the fixing nail (24) is welded and fixed at the bottom end of the baffle plate (23),
the fixed block (26) is welded and fixed at the top end of the extension rod (22),
the limiting teeth (27) are welded and fixed on the inner wall of the sliding groove (25),
the triangular blocks (28) are connected in a sliding way inside the fixed block (26),
the return spring (29) is welded and fixed at the bottom of the triangular block (28),
stop device, it is used for carrying on spacingly to the push pipe, prevents to take place the displacement at the work process device push pipe to influence the precision, prevent to take place the displacement at the work process device push pipe, stop device still includes: a limit plate (3), a cushion block (31), a connecting block (32), a cavity (33), a rack (34), a straight gear (35), a rotating shaft (36) and a knob (37), wherein,
the limit plate (3) is connected on the top plate (13) in a sliding way, a cavity (33) is arranged in the top plate (13),
the cushion block (31) is glued and fixed on the limit plate (3),
the connecting block (32) is welded and fixed at the bottom of the limiting plate (3),
the rack (34) is welded and fixed on the connecting block (32),
the straight gear (35) is meshed with the rack (34),
the rotating shaft (36) is coaxially welded and fixed on the straight gear (35),
the knob (37) is coaxially welded and fixed at the bottom of the rotating shaft (36).
2. The adjustable support rail for pipe jacking according to claim 1, wherein the straight rod (11) penetrates through the working platform (1), the bottom plate (12) is located below the working platform (1), the top plate (13) is located above the working platform (1), and one end of the adjusting bolt (14) is engaged with the working platform (1).
3. An adjustable support rail for pipe jacking according to claim 1, wherein said sliding rod (16) extends through the support column (15), said button (18) extends through the support column (15), said spring (19) is welded and fixed to the bottom end of the button (18), and the other end of said spring (19) is welded and fixed inside the sliding rod (16).
4. The adjustable support rail for pipe jacking according to claim 1, wherein the rotating rod (2) is disposed inside the groove (21), the extension rod (22) slides inside the sliding groove (25), and the other end of the return spring (29) is welded and fixed inside the fixed block (26).
5. The adjustable support rail for pipe jacking according to claim 1, wherein the connecting block (32) slides inside the cavity (33), the spur gear (35) rotates in the cavity (33), the rotating shaft (36) penetrates through the top plate (13), the knob (37) is disposed below the top plate (13), and the knob (37) is provided with anti-slip patterns.
6. The adjustable support rail for pipe jacking according to claim 1, wherein the groove (21) is fixedly connected with a permanent magnet (4), and the limit teeth (27) are engaged with the triangular blocks (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111226088.5A CN113958331A (en) | 2021-10-21 | 2021-10-21 | Adjustable supporting guide rail used in pipe jacking construction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111226088.5A CN113958331A (en) | 2021-10-21 | 2021-10-21 | Adjustable supporting guide rail used in pipe jacking construction process |
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| Publication Number | Publication Date |
|---|---|
| CN113958331A true CN113958331A (en) | 2022-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111226088.5A Pending CN113958331A (en) | 2021-10-21 | 2021-10-21 | Adjustable supporting guide rail used in pipe jacking construction process |
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| JPH08260883A (en) * | 1995-03-24 | 1996-10-08 | Toudentsuu:Kk | Receiving device of underground jacking body |
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| CN210977507U (en) * | 2019-11-30 | 2020-07-10 | 成都轨道建设管理有限公司 | Subway construction mobile tunnel segment support frame |
| CN111536307A (en) * | 2020-04-17 | 2020-08-14 | 安徽正兴和光电科技有限公司 | Pipe jacking picking and placing device for trenchless pipe jacking engineering and working method thereof |
| CN111594205A (en) * | 2020-04-16 | 2020-08-28 | 安徽正兴和光电科技有限公司 | Excavating equipment for trenchless pipe jacking construction |
| CN212690038U (en) * | 2020-07-01 | 2021-03-12 | 核工业井巷建设集团有限公司 | Pipe-jacking construction retaining device for high-water-pressure and high-water-permeability stratum |
| CN213540401U (en) * | 2020-09-24 | 2021-06-25 | 文安县亿泰管业有限公司 | Small-size push bench |
| CN213869903U (en) * | 2020-11-27 | 2021-08-03 | 熊彬臣 | Safety device convenient for fixing steel arch frame tunnel construction |
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2021
- 2021-10-21 CN CN202111226088.5A patent/CN113958331A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08260883A (en) * | 1995-03-24 | 1996-10-08 | Toudentsuu:Kk | Receiving device of underground jacking body |
| JP2003214089A (en) * | 2002-01-23 | 2003-07-30 | Kurimoto Ltd | Insertion pipe supporting device for sheath pipe jacking method |
| JP2003232188A (en) * | 2002-02-06 | 2003-08-22 | Kubota Corp | Pipe jacking machine, adaptor and pipe jacking method |
| CN101149119A (en) * | 2006-09-21 | 2008-03-26 | 中国石油天然气管道局 | Dolly excavation continuous operation construction method for earth pressure balance long-distance pipe driving engineering |
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| CN210977507U (en) * | 2019-11-30 | 2020-07-10 | 成都轨道建设管理有限公司 | Subway construction mobile tunnel segment support frame |
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Effective date of registration: 20240513 Address after: 909, Building F, No. 166 Chuangqiang Road, Ningxi Street, Zengcheng District, Guangzhou City, Guangdong Province, 510000 Applicant after: Guangdong Huading Engineering Technology Co.,Ltd. Country or region after: China Address before: 101400 No. 18, Xiaozhong fule 1st District, Huairou District, Beijing Applicant before: Bao Jian Country or region before: China |