CN113404931B - Pipe jacking construction device for sludge soil - Google Patents
Pipe jacking construction device for sludge soil Download PDFInfo
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- CN113404931B CN113404931B CN202110825559.8A CN202110825559A CN113404931B CN 113404931 B CN113404931 B CN 113404931B CN 202110825559 A CN202110825559 A CN 202110825559A CN 113404931 B CN113404931 B CN 113404931B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention belongs to the technical field of pipe jacking equipment, and discloses a pipe jacking construction device for sludge soil, which is technically characterized in that: including two sets of bodies of placing relatively, body both sides opening part fixed mounting respectively has the steel ring cover, and body inner wall fixed mounting has two sets ofly to be close to both sides open-ended solid fixed ring respectively, and demountable installation has supplementary jacking mechanism in two sets of body inner chambers, supplementary jacking mechanism is including jack, fixed part and promotion portion, steel ring cover surface mounting have with the steel ring cover on another group of bodies protection machanism that mutually supports, protection machanism is including restriction portion and non return portion, restriction portion is used for preventing the body rotation, the non return portion is used for preventing body antiport.
Description
Technical Field
The invention relates to the technical field of pipe jacking equipment, in particular to a pipe jacking construction device for sludge soil.
Background
Along with the continuous and rapid development of economy in China and the continuous promotion of urbanization process, the demand of underground pipelines in urban supporting facilities is increasing year by year, the pipe-jacking construction technology has the advantages of small construction operation surface, no influence on traffic and the like, plays an increasingly important role in the construction of underground pipelines in China, and the trenchless pipe-jacking construction technology is bound to develop towards the large-scale, planning and internationalization directions.
The pipe jacking construction is mainly characterized in that thrust is generated on a pipeline in a working pit by means of jacking equipment, so that the friction force between the pipeline and surrounding soil is overcome, the pipeline is jacked into a soil layer, and pipe joints are continuously jacked and increased in the pipe jacking construction until the pipeline is pushed into a receiving pit.
When pipe jacking construction is carried out in sludge soil, the contact and dense friction force of the soil and the pipe body is increased, the thrust generated by the existing jacking equipment cannot jack the pipe body independently, the existing treatment mode is segmented relay jacking through the arrangement of relays, but the treatment mode is inconvenient to install and disassemble, the jacking effect is poor, and the expected jacking effect cannot be achieved.
Disclosure of Invention
The invention aims to provide a pipe jacking construction device for sludge soil, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a pipe jacking construction device for sludge soil comprises two sets of pipe bodies which are oppositely arranged, steel ring sleeves are respectively and fixedly arranged at openings at two sides of the pipe bodies, two sets of fixing rings which are respectively close to the openings at two sides are fixedly arranged on the inner walls of the pipe bodies, auxiliary jacking mechanisms are detachably arranged in inner cavities of the two sets of pipe bodies and comprise jacks, fixing parts and pushing parts,
the base of the jack is connected with the fixed part, the telescopic end of the jack is connected with the pushing part,
the fixing part is connected with the fixing rings in the group of pipe bodies and is used for fixing the position of the jack,
the pushing part is connected with the fixing ring in the other group of pipe bodies and is used for generating pushing force to the pipe bodies,
the steel ring cover surface mounting has the protection machanism who mutually supports with the steel ring cover on another group's body on the body, protection machanism is including restriction portion and non return portion, restriction portion is used for preventing the body and rotates, the non return portion is used for preventing the body and removes towards deviating from the jacking direction.
As a further scheme of the invention: the fixed part is including jack base fixed connection's loading board, and the loading board rotates towards the solid fixed ring's in the body lateral wall and installs the multiunit ejector pin, and the one end that the loading board was kept away from to the ejector pin rotates and is connected with the fixed block, and solid fixed ring surface is seted up the multiunit and is mutually supported the standing groove with the fixed block respectively, the telescopic machanism who mutually supports with the ejector pin is installed to the loading board lateral wall, telescopic machanism is used for adjusting the position of ejector pin.
As a further scheme of the invention: the telescopic mechanism comprises a fixed rod fixedly arranged on the surface of the bearing plate, and a plurality of groups of extrusion springs fixedly connected with the ejector rod respectively are fixedly arranged on the surface of the fixed rod.
As a further scheme of the invention: the pushing portion comprises a control block fixedly connected with the telescopic end of the jack, a plurality of groups of push rods are installed on the side wall of the control block in a rotating mode, one end, far away from the control block, of each push rod is installed with an extrusion block tightly attached to the surface of a fixed ring in another group of pipes in a rotating mode, a stabilizing mechanism matched with the push rods is installed on the side wall of the control block, and the stabilizing mechanism is used for fixing the positions of the push rods.
As a further scheme of the invention: stabilizing mean is including the threaded rod of control block fixed surface installation, and threaded rod surface slidable mounting has the sliding block, and the sliding block lateral wall rotates to install the multiunit and rotates the connecting rod of being connected with the push rod respectively, and the threaded rod surface difference threaded connection of sliding block both sides has fastening nut.
As a further scheme of the invention: the limiting part comprises a plurality of groups of limiting holes which are arranged on the surface of the steel ring sleeve and are distributed at equal intervals, and a plurality of groups of limiting columns which are inserted into the limiting holes are fixedly arranged on the surface of the steel ring sleeve.
As a further scheme of the invention: the non return portion including the limiting groove that sets up in the steel ring cover and spacing hole intercommunication, spacing post tip rotates installs two sets of control levers, the control lever extend to the limiting groove and fixedly connected with locking piece, the common fixedly connected with spring of the two sets of relative both sides walls of locking piece.
As a still further scheme of the invention: the steel ring sleeve is provided with an anti-rotation mechanism which is distributed at intervals with the protection mechanism on the surface, the anti-rotation mechanism comprises a plurality of groups of clamping connecting rods fixedly arranged on the surface of the steel ring sleeve on the other group of pipe bodies, and a plurality of groups of clamping grooves which are matched with the clamping connecting rods are inwards arranged on the surface of the steel ring sleeve.
Compared with the prior art, the invention has the beneficial effects that: through set up by the jack in the body inner chamber, the fixed part, supplementary jacking mechanism that the promotion portion is constituteed mutually supports with solid fixed ring, can be convenient exert thrust and then drive the body and jack in the soil layer to the body, and can be convenient demolish supplementary jacking mechanism, the thrust that has solved current jacking equipment and has produced can't jack in to the body alone, sets up the problem that the installation of relay segmentation relay jacking is not convenient for and dismantles and the relatively poor unable effect that reaches the anticipated jacking effect of jacking.
Drawings
Fig. 1 is a schematic structural view of a pipe jacking construction device for sludge soil.
Fig. 2 is an enlarged schematic view of a in fig. 1.
FIG. 3 is a schematic diagram of a right view structure of a steel ring sleeve and a fixing ring in a pipe jacking construction device for sludge soil.
FIG. 4 is a schematic view showing an external structure of a steel collar in a pipe jacking construction apparatus for sludge soil.
Wherein: the pipe body 1, the steel ring sleeve 2, the auxiliary jacking mechanism 4, the jack 41, the fixed part 42, the bearing plate 421, the placement groove 422, the ejector rod 423, the fixed block 424, the pushing part 43, the control block 431, the push rod 432, the extrusion block 433, the telescopic mechanism 5, the fixed rod 51, the extrusion spring 52, the stabilizing mechanism 6, the threaded rod 61, the sliding block 62, the connecting rod 63, the fastening nut 64, the fixed ring 7, the protection mechanism 9, the limiting part 91, the limiting hole 911, the limiting column 912, the non-return part 92, the control rod 921, the locking block 922, the limiting groove 923, the spring 924, the anti-rotation mechanism 10, the clamping rod 101 and the clamping groove 102.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1 and 2, a structure diagram of a pipe jacking construction device for sludge soil according to an embodiment of the present invention includes two sets of pipe bodies 1 disposed opposite to each other, steel ring sleeves 2 are respectively and fixedly installed at openings at two sides of the pipe bodies 1, two sets of fixing rings 7 respectively close to the openings at two sides are fixedly installed on an inner wall of the pipe body 1, auxiliary jacking mechanisms 4 are detachably installed in inner cavities of the two sets of pipe bodies 1, each auxiliary jacking mechanism 4 includes a jack 41, a fixing portion 42 and a pushing portion 43, a base of the jack 41 is connected to the fixing portion 42, a telescopic end of the jack 41 is connected to the pushing portion 43, the fixing portion 42 is connected to the fixing ring 7 in one set of pipe bodies 1, the fixing portion 42 is used for fixing the position of the jack 41, the pushing portion 43 is connected to the fixing ring 7 in the other set of pipe bodies 1, the pushing portion 43 is used for generating a pushing force to the pipe bodies 1, the surface of the steel ring sleeve 2 is provided with a protection mechanism 9 which is matched with the steel ring sleeve 2 on the other group of pipe bodies, the protection mechanism 9 comprises a limiting part 91 and a non-return part 92, the limiting part 91 is used for preventing the pipe body 1 from rotating, and the non-return part 92 is used for preventing the pipe body 1 from moving towards the direction deviating from the jacking direction.
When using, in jacking equipment in through the work hole with multiunit body 1 in proper order the jacking to the soil layer, place supplementary jacking mechanism 4 between two sets of adjacent bodys 1, can fix the position of jack 41 through fixed part 42 and the solid fixed ring 7 of the solid fixed ring on a set of body 1 mutually supports, closely paste the reality with solid fixed ring 7 on pushing part 43 and another group body 1 again, start jack 41 can produce thrust to body 1 through pushing part 43 and solid fixed ring 7 mutually supports, the thrust that can effectual share jacking equipment in the work hole through supplementary jacking mechanism 4 and then improve the jacking speed and the effect of body 1. And after the jacking of the pipe body 1 is finished, the fixing part 42 can be conveniently separated from the fixing ring 7, the pushing part 43 can be conveniently separated from the fixing ring 7 on the other group of pipe body 1, and then the auxiliary jacking mechanism 4 consisting of the fixing part 42, the jack 41 and the pushing part 43 can be conveniently detached from the inner cavity of the pipe body 1.
As shown in fig. 1, as a preferred embodiment of the present invention, the fixing portion 42 includes a supporting plate 421 fixedly connected to a base of the jack 41, a plurality of sets of push rods 423 are rotatably installed on the supporting plate 421 toward a side wall of the fixing ring 7 in the pipe body 1, one end of each push rod 423 away from the supporting plate 421 is rotatably connected to a fixing block 424, a plurality of sets of placing grooves 422 respectively matched with the fixing blocks 424 are formed on a surface of the fixing ring 7, a telescopic mechanism 5 matched with the push rods 423 is installed on a side wall of the supporting plate 421, and the telescopic mechanism 5 is used to adjust a position of the push rods 423.
When using, adjust the turned angle of multiunit ejector pin 423 and insert the fixed block 424 of ejector pin 423 tip solid fixed ring 7 standing groove 422 on the surface through telescopic machanism 5 in, jack 41 during operation mutually supports through loading board 421, ejector pin 423 and first dead lever 7, can effectually carry out the rigidity to jack 41 to after the jacking, be convenient for dismantle supplementary jacking mechanism 4.
Besides the above structure, the fixing portion 42 can also be directly welded to the surface of the bearing plate 421 with a mounting rod that can be connected to the fixing ring 7, and when the jack 41 is pushed in, the position of the jack 41 can also be fixed by clamping the mounting rod to the fixing rod 7.
As shown in fig. 1, as a preferred embodiment of the present invention, the telescopic mechanism 5 includes a fixing rod 51 fixedly mounted on a surface of a bearing plate 421, a plurality of sets of pressing springs 52 fixedly connected to the top rods 423 respectively are fixedly mounted on a surface of the fixing rod 51, and the plurality of sets of pressing springs 52 are annularly and equidistantly distributed.
In use, the pressing spring 52 generates an elastic force to the top rod 423 to insert the fixing block 424 on the top rod 423 into the placing groove 422, and the detachment of the apparatus is facilitated by adjusting the top rod 423 and the fixing block 424.
Besides the above structure, the telescopic mechanism 5 may further include a bracket slidably connected to the top rod 423 and the supporting plate 421, and the top rod 423 is adjusted by moving the bracket.
As shown in fig. 1, as a preferred embodiment of the present invention, the pushing part 43 includes a control block 431 fixedly connected to the telescopic end of the jack 41, a plurality of sets of push rods 432 are rotatably mounted on the side wall of the control block 431, an end of each push rod 432 away from the control block 431 is rotatably mounted with a pressing block 433 tightly attached to the surface of a fixing ring 7 on another set of pipe bodies 1, a stabilizing mechanism 6 mutually matched with the push rods 432 is mounted on the side wall of the control block 431, and the stabilizing mechanism 6 is used for fixing the position of the push rods 432.
When the pipe jacking device is used, the jack 41 generates thrust and transmits the thrust to the control block 431, and the control block 431 transmits the thrust of the jack 41 to the fixing ring 7 through the push rod 432 and the extrusion block 433 so as to generate thrust to the pipe 1 and jack the pipe 1.
As shown in fig. 1, as a preferred embodiment of the present invention, the stabilizing mechanism 6 includes a threaded rod 61 fixedly mounted on the surface of the control block 431, a sliding block 62 is slidably mounted on the surface of the threaded rod 61, a plurality of sets of connecting rods 63 rotatably connected to the push rods 432 are rotatably mounted on the side walls of the sliding block 62, and fastening nuts 64 are respectively screwed on the surfaces of the threaded rods 61 on both sides of the sliding block 62.
When the adjusting device is used, the adjusting sliding block 62 moves on the surface of the threaded rod 61, so that the connecting rod 63 drives the push rod 432 to adjust the angle, the extrusion block 433 on the control push rod 432 is tightly attached to the fixing ring 7, and the position of the sliding block 62 is fixed by mutually matching two groups of fastening nuts 64 and the threaded rod 61, so that the stability of the push rod 432 is improved.
Besides the above structure, the stabilizing mechanism 6 can also use an electric telescopic rod instead of the threaded rod 61 and the fastening nut 64 to directly and fixedly connect the sliding block 62 with the telescopic end of the electric telescopic rod, and adjust the position of the sliding block 62 through the electric telescopic rod.
As shown in fig. 2, as a preferred embodiment of the present invention, the limiting part 91 includes a plurality of sets of limiting holes 911 formed in the surface of the steel ring sleeve 2 of the pipe body 1 and distributed at equal intervals, and a plurality of sets of limiting posts 912 inserted into the limiting holes 911 are fixedly mounted on the surface of the steel ring sleeve 2 of the other set of pipe body 1.
As shown in fig. 2, as a preferred embodiment of the present invention, the non-return portion 92 includes a limiting groove 923 disposed in the steel ring sleeve 2 and communicated with the limiting hole 911, two sets of control levers 921 are rotatably mounted at the end of the limiting post 912, the control levers 921 extend into the limiting groove 923 and are fixedly connected with locking blocks 922, and two opposite side walls of the two sets of locking blocks 922 are fixedly connected with springs 924.
When using, during spacing post 912 on the steel ring cover 2 on the body 1 inserted the spacing hole 911 on the steel ring cover 2 on another group body 1, can tentatively prevent to take place relative rotation between the multiunit body 1, spring 924 produces elasticity and drives the control lever 921 and remove and then make the mutual joint of locking piece 922 and spacing groove 923, can effectively prevent body 1 reverse movement when losing thrust.
As shown in fig. 3 and 4, as a preferred embodiment of the present invention, the surface of the steel ring sleeve 2 is provided with anti-rotation mechanisms 10 spaced apart from the protection mechanism 9, the anti-rotation mechanisms 10 include a plurality of sets of clamping rods 101 fixedly mounted on the surface of the steel ring sleeve 2 on the pipe body 1, and a plurality of sets of clamping grooves 102 mutually matched with the clamping rods 101 are inwardly formed on the surface of the steel ring sleeve 2 on the other set of pipe body 1.
When the pipe body is used, the clamping rods 101 are respectively clamped with the clamping grooves 102, so that the positions of two groups of adjacent pipe bodies 1 can be kept consistent, and the pipe bodies 1 are effectively prevented from rotating.
The working principle of the invention is as follows: when using, in jacking equipment pushes up multiunit body 1 to the soil layer in proper order through in the work pit, will assist jacking mechanism 4 to place between two sets of adjacent body 1, extrusion spring 52 produces elasticity and promotes multiunit ejector pin 423 angle of adjustment, insert the standing groove 422 on solid fixed ring 7 surface with the fixed block 424 of ejector pin 423 tip, the angle that moves sliding block 62 and then adjusts push rod 432 through connecting rod 63 makes extrusion block 433 hug closely solid fixed ring 7 surface on another group body 1, fix sliding block 62's position through two sets of fastening nut 64, start jack 41 and drive control block 431 and remove and then transmit thrust to solid fixed ring 7 through push rod 432 on and carry out the jacking operation to body 1. Through mutually supporting multiunit joint pole 101 and joint groove 102, can prevent effectively that body 1 from taking place to rotate when the jacking and influencing the precision.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (4)
1. A pipe jacking construction device for sludge soil comprises two sets of pipe bodies which are oppositely arranged, steel ring sleeves are respectively and fixedly arranged at openings at two sides of the pipe bodies, two sets of fixing rings which are respectively close to the openings at two sides are fixedly arranged on the inner walls of the pipe bodies, and is characterized in that auxiliary jacking mechanisms are detachably arranged in inner cavities of the two sets of pipe bodies and comprise jacks, fixing parts and pushing parts,
the base of the jack is connected with the fixed part, the telescopic end of the jack is connected with the pushing part,
the fixing part is connected with a fixing ring in a group of pipe bodies and used for fixing the position of a jack, the fixing part comprises a bearing plate fixedly connected with a jack base, a plurality of groups of ejector rods are rotatably arranged on the side wall of the bearing plate facing the fixing ring in the pipe bodies, one end of each ejector rod, far away from the bearing plate, is rotatably connected with a fixing block, a plurality of groups of placing grooves respectively matched with the fixing blocks are arranged on the surface of each fixing ring, a telescopic mechanism matched with the ejector rods is arranged on the side wall of the bearing plate and used for adjusting the position of the ejector rods, the telescopic mechanism comprises a fixing rod fixedly arranged on the surface of the bearing plate, a plurality of groups of extrusion springs respectively fixedly connected with the ejector rods are fixedly arranged on the surface of the fixing rod,
the pushing part is connected with a fixed ring in another group of pipe bodies and used for generating thrust to the pipe bodies, the pushing part comprises a control block fixedly connected with the telescopic end of a jack, a plurality of groups of push rods are rotatably arranged on the side wall of the control block, an extrusion block tightly attached to the surface of a fixed ring in another group of pipe bodies is rotatably arranged at one end of each push rod far away from the control block, a stabilizing mechanism matched with the push rods is arranged on the side wall of the control block and used for fixing the position of the push rods, the stabilizing mechanism comprises a threaded rod fixedly arranged on the surface of the control block, sliding blocks are slidably arranged on the surface of the threaded rod, a plurality of groups of connecting rods respectively rotatably connected with the push rods are rotatably arranged on the side wall of each sliding block, and fastening nuts are respectively connected with the surfaces of the threaded rods on the two sides of each sliding block through threads,
the steel ring cover surface mounting has the protection machanism who mutually supports with the steel ring cover on another group's body on the body, protection machanism is including restriction portion and non return portion, restriction portion is used for preventing the body and rotates, the non return portion is used for preventing the body and removes towards deviating from the jacking direction.
2. The pipe jacking construction device for sludge soil according to claim 1, wherein the limiting part comprises a plurality of sets of limiting holes arranged on the surface of the steel ring sleeve at equal intervals, and a plurality of sets of limiting columns inserted into the limiting holes are fixedly arranged on the surface of the steel ring sleeve.
3. The pipe jacking device for sludge soil according to claim 1, wherein the non-return part comprises a limiting groove arranged in the steel ring sleeve and communicated with the limiting hole, two groups of control rods are rotatably arranged at the end part of the limiting column, the control rods extend into the limiting groove and are fixedly connected with locking blocks, and two opposite side walls of the two groups of locking blocks are fixedly connected with springs together.
4. The pipe jacking device according to claim 1, wherein the steel ring sleeve is provided with anti-rotation mechanisms on the surface thereof, the anti-rotation mechanisms are spaced from the protection mechanisms, the anti-rotation mechanisms comprise a plurality of clamping rods fixedly arranged on the surface of the steel ring sleeve on the other pipe body, and a plurality of clamping grooves matched with the clamping rods are formed in the surface of the steel ring sleeve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110825559.8A CN113404931B (en) | 2021-07-21 | 2021-07-21 | Pipe jacking construction device for sludge soil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110825559.8A CN113404931B (en) | 2021-07-21 | 2021-07-21 | Pipe jacking construction device for sludge soil |
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| CN113404931A CN113404931A (en) | 2021-09-17 |
| CN113404931B true CN113404931B (en) | 2022-04-22 |
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| CN202110825559.8A Active CN113404931B (en) | 2021-07-21 | 2021-07-21 | Pipe jacking construction device for sludge soil |
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| CN114060608A (en) * | 2021-12-07 | 2022-02-18 | 湖南百舸水利建设股份有限公司 | Relay oil cylinder dismounting and moving device for pipe jacking construction |
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| CN109027418A (en) * | 2018-08-30 | 2018-12-18 | 上海隧道工程有限公司 | Pipe jacking tunnel concrete tube coupling |
| CN109611610A (en) * | 2019-01-14 | 2019-04-12 | 中铁工程装备集团有限公司 | A kind of fluid circuit continuous type jacking construction device and construction method |
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