CN111206618A - Prefabricated rectangular jacking pipe and construction method thereof - Google Patents
Prefabricated rectangular jacking pipe and construction method thereof Download PDFInfo
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- CN111206618A CN111206618A CN201911385135.3A CN201911385135A CN111206618A CN 111206618 A CN111206618 A CN 111206618A CN 201911385135 A CN201911385135 A CN 201911385135A CN 111206618 A CN111206618 A CN 111206618A
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- 238000010276 construction Methods 0.000 title claims abstract description 29
- 238000004873 anchoring Methods 0.000 claims abstract description 55
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 239000011440 grout Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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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
-
- 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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Abstract
The invention provides a prefabricated rectangular jacking pipe and a construction method thereof, relating to the technical field of jacking pipe engineering, wherein the construction method comprises the following steps: s1, prefabricating a U-shaped splicing section; the U-shaped splicing section is provided with two arms which are parallel to each other, and channels which penetrate through the corresponding arms are arranged in the two arms; s2, splicing the U-shaped splicing sections to form a pipe joint; the method comprises the following steps: sequentially splicing the plurality of U-shaped splicing sections end to obtain a pipe joint with a closed structure; s3, splicing the pipe joints to form a jacking pipe; wherein, the end-to-end splicing specifically comprises: and inserting an anchoring rod into each channel, and fixedly connecting the anchoring rods in the plurality of U-shaped splicing sections to be spliced end to obtain the annular pipe joint. In the pipe jacking process, the splicing of the inner parts of the pipe joints is completed by the tensioned anchoring rods, and the tensioned anchoring rods provide a pretightening force for the pipe joints, so that the inner parts of the pipe joints are stably connected in the pipe jacking process, and the pipe joints are stable in structure and good in integrity.
Description
Technical Field
The invention relates to the technical field of pipe jacking engineering, in particular to a prefabricated rectangular pipe jacking and a construction method thereof.
Background
The pipe jacking technology is a trenchless tunneling type pipeline laying construction technology used for municipal construction. The common section forms include various section forms such as round, rectangular and special-shaped. Along with the rapid development of the urbanization process, the utilization and the demand of the underground space are more and more prominent, the rectangular jacking pipes can meet the demands of crossing streets, subway entrances and exits, underground comprehensive pipe galleries and the like, and the development prospect is more and more prominent.
The existing prefabricated push pipe is formed by splicing pipe joints, the pipe joints are formed by splicing a plurality of independent structures which are formed by separately processing, and how to keep the connection inside the pipe joints stable is a very important problem in the process of push pipe construction.
Therefore, it is necessary to provide a pipe jacking construction method capable of keeping the internal connection of pipe joints stable during pipe jacking.
Disclosure of Invention
Aiming at the technical problem, the invention aims to provide a prefabricated rectangular jacking pipe with stably connected pipe joints in the jacking process and a construction method thereof.
In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme to realize:
the invention provides a prefabricated rectangular jacking pipe construction method in a first aspect, which comprises the following steps:
s1, prefabricating a U-shaped splicing section; the U-shaped splicing section is provided with two arms which are parallel to each other, and channels which run through the corresponding arms are arranged in the two arms.
S2, splicing the U-shaped splicing sections to form a pipe joint; the method comprises the following steps: and sequentially splicing a plurality of U-shaped splicing sections end to obtain the pipe joint with a closed structure.
And S3, splicing the pipe joints to form a jacking pipe.
Wherein, the end-to-end splicing specifically comprises: and inserting an anchoring rod into each channel, and fixedly connecting the anchoring rods in the plurality of U-shaped splicing sections to be spliced end to obtain the annular pipe joint.
The method as claimed in claim 1, wherein one end of the anchor bar is anchored at a corner of the U-shaped splicing section.
Advantageously or exemplarily, the corners of the U-shaped splicing sections are provided with wedges, and one end of the anchoring rod is anchored on the end surface of the wedge.
Advantageously or exemplarily, said anchoring of one end of the anchoring bar on the end face of said wedge, in particular: and sequentially sleeving an anchoring plate, a gasket and a nut into one end of the anchoring rod, wherein the nut is in threaded fit with the anchoring rod, the anchoring plate is pressed on the end face of the wedge-shaped opening, and the outer diameter of the anchoring plate is larger than the inner diameter of the channel.
Beneficially or exemplarily, a square opening is formed on the splicing end face of the U-shaped splicing section corresponding to the channel, and in step S2, the sequentially splicing the plurality of U-shaped splicing sections end to end specifically includes: and an anchor rod connector is arranged in the square opening, one end of the anchor rod of one U-shaped splicing section is in threaded connection with one end of the anchor rod connector, and one end of the anchor rod of the other U-shaped splicing section is rotatably connected into the other end of the anchor rod connector.
Advantageously or exemplarily, the surface of said pipe section is provided with grouting holes connected into the channels;
before step S3, grouting material is poured into the channel from the grouting hole.
Advantageously or exemplarily, step S1 further includes: and a positioning structure for the contraposition installation of the U-shaped splicing sections is arranged on the U-shaped splicing sections.
Advantageously or exemplarily, the positioning structure comprises positioning holes and positioning pins, the positioning holes are arranged on the first end surfaces, the positioning holes on the two spliced first end surfaces are in one-to-one correspondence, and the positioning pins are arranged in the two corresponding positioning holes.
The invention provides a prefabricated rectangular jacking pipe which is manufactured by the construction method.
The various embodiments of the invention have the following beneficial effects: according to the pipe jacking construction method provided by the invention, in the pipe jacking process, the splicing of the inner parts of the single pipe joints is completed by the tensioned anchoring rods, and the tensioned anchoring rods provide a pretightening force for the pipe joints, so that in the pipe jacking process, the inner parts of the pipe joints are stably connected, and the pipe joints are stable in structure and good in integrity.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
FIG. 1 is a cross-sectional view of a prefabricated rectangular pipe section according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a prefabricated U-shaped splice section according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a prefabricated rectangular pipe section according to an embodiment of the present invention;
FIG. 4 is a structural diagram of a prefabricated rectangular ceiling coil according to an embodiment of the present invention;
FIG. 5 is an enlarged view at A of FIG. 1 in accordance with one embodiment of the present invention;
fig. 6 is a construction process diagram of a prefabricated push pipe according to an embodiment of the present invention.
Reference numerals: 1-pipe section; 2-a channel; 3-anchoring a rod; 4-anchor rod connector; 5-an anchor plate; 6-a gasket; 7-a screw cap; 8-grouting holes; 11-U-shaped splicing sections; 12-an arc-shaped portion; 13-a wedge; 14-square mouth.
Detailed Description
The invention is further described below with reference to the following examples in conjunction with the accompanying drawings.
The first aspect of the embodiment of the invention provides a prefabricated rectangular pipe-jacking section, which comprises U-shaped splicing sections 11, wherein each U-shaped splicing section 11 is provided with two parallel arms, channels 2 penetrating through the corresponding arms are arranged in the two arms, tensioned anchoring rods 3 are arranged in the channels 2, and the plurality of U-shaped splicing sections 11 are spliced end to end through the fixed connection of the anchoring rods 3 to obtain the rectangular pipe-jacking section 1 with a closed structure.
In this embodiment, the splicing of the U-shaped splicing section 11 is completed by the tensioned anchor rod 3, and the tensioned anchor rod 3 provides a pretightening force to the U-shaped splicing section 11, so that the connection between the U-shaped splicing sections 11 is stable in the pipe jacking process, and the pipe joint 1 has a stable structure and good integrity.
Meanwhile, the anchoring rods 3 are arranged in the pipe joints 1, so that the overall strength, the rigidity and the waterproofness of the pipe joints 1 are improved, and the overall strength, the rigidity and the waterproofness of the pipe jacking pipe formed by splicing the pipe joints 1 are further improved.
In one embodiment, the anchor bar 3 is a metal anchor bar, and in a further embodiment, a steel bar commonly used in the field of building construction is used as the anchor bar 3.
In one embodiment, one end of the anchor bar 3 is anchored at a corner of the U-shaped splice section 11.
In one embodiment, the U-shaped segment 11 is a circular arc dog-leg structure, and includes an arc portion 12, and the channel 2 penetrates from the end surface of the U-shaped segment 11 to the outer surface of the arc portion 12 and is anchored to the outer surface of the arc portion 12. In another embodiment, the channel 2 in the respective arm runs through from the end face of the U-splice 11 to the outer surface of the other arm of the U-splice 11.
In one embodiment, a wedge 13 is provided at the corner of the U-shaped splicing section 11, and one end of the anchor rod 3 is anchored on the end surface of the wedge 13. In a further embodiment, when the arc portion 12 is provided, the wedge 13 opens at the outer surface of the arc portion 12.
In the embodiment, the wedge-shaped opening 13 forms a flat wedge-shaped surface, and one end of the anchor rod 3 is anchored on the flat wedge-shaped surface after protruding out of the wedge-shaped opening 13, so that the anchoring convenience degree is improved; in addition, the wedge-shaped opening 13 is arranged, so that the anchoring rod 3 can be connected with the two U-shaped splicing sections 11 on the premise that the outer surfaces of the U-shaped splicing sections 11 cannot be protruded, and the jacking of the pipe joint 1 in the pipe jacking process cannot be influenced.
In a further embodiment, the wedge-shaped surface formed by the wedge-shaped opening 13 is perpendicular to the anchoring rod 3, so that the anchoring effect is better.
In one embodiment, the anchor rod further comprises an anchor plate 5, a gasket 6 and a nut 7, wherein the anchor plate 5, the gasket 6 and the nut 7 are sequentially sleeved on the part, protruding out of the wedge-shaped opening 13, of the anchor rod 3, and the nut 7 is in threaded fit with the anchor rod 3 to tightly press the anchor plate 5 on the end face of the wedge-shaped opening 13.
One end of the anchoring rod 3 protrudes out of the wedge-shaped opening 13, when the wedge-shaped opening is connected with the other U-shaped splicing section 11 and fixed, the anchoring rod 3 is tensioned, then the tensioning state is kept, the anchoring plate 5, the gasket 6 and the nut 7 are sleeved in sequence from the second end, the nut 7 is screwed, and the anchoring of the second end of the anchoring rod 3 is completed.
In the present embodiment, a feasible anchoring structure is provided, which stably fixes one end of the anchoring rod 3 protruding out of the wedge 13, so that the tensioned anchoring rod 3 can maintain a tensioned state.
In one embodiment, a square opening 14 is arranged on the splicing end face of the U-shaped splicing section 11 corresponding to the channel 2, an anchor rod connector 4 is arranged in the square opening 14, and one end of the anchor rod 3 of two U-shaped splicing sections 11 is respectively connected with two ends of the anchor rod connector 4.
Set up square mouth 14 for anchor stick 3 is hidden in square mouth 14, for anchor stick connector 4 provides arrangement space, hidden design anchor stick 3 avoids anchor stick 3 to be destroyed by external factor influence, has also improved the wholeness of tube coupling 1.
In one embodiment, the pipe joint further comprises a grouting hole 8, wherein the grouting hole 8 is formed in the surface of the pipe joint 1 and communicated with the channel 2. In another embodiment, the grouting hole 8 may also be communicated into the square port 14.
In this embodiment, after grouting material is poured into the square opening 14 or the channel 2 from the grouting hole 8, the part of the anchor rod 3 in the U-shaped splicing section 11 and the joint of the two anchor rods 3 are wrapped by the grouting material, so that the overall strength is improved.
In a preferred embodiment, the grouting holes 8 are formed in the inner surface of the pipe joint 1, so that the influence of the surrounding soil on the grouting holes 8 in the pipe jacking process is avoided.
In other embodiments, it may also include filling the wedge 13 with grout so that the anchor bar 3 is completely surrounded by grout.
In one embodiment, the positioning structure is further included, and the U-shaped splicing section 11 is installed in a position-aligned mode through the positioning structure.
In one embodiment, the positioning structure includes a positioning hole and a positioning pin, the positioning hole is disposed on the splicing end face of the U-shaped splicing section 11, the positioning holes on the splicing end faces spliced with each other are in one-to-one correspondence, and the positioning pin is disposed in two corresponding positioning holes. In other embodiments, the positioning structure may be in other forms, such as a combination of protrusions and recesses, an alignment structure disposed on both sides of the U-shaped splicing section 11, and the like.
A second aspect of the embodiments of the present invention provides a prefabricated rectangular pipe jacking construction method, for manufacturing a pipe jacking by using the pipe joint 1, as shown in fig. 6, including the following steps:
s1, prefabricating a U-shaped splicing section 11; the U-shaped splicing section 11 is provided with two arms which are parallel to each other, and a channel 2 which penetrates through the corresponding arms is arranged in the two arms;
s2, splicing the U-shaped splicing sections 11 to form a pipe joint; the method comprises the following steps: sequentially splicing the plurality of U-shaped splicing sections 11 end to obtain a pipe joint with a closed structure;
s3, splicing pipe joints to form a jacking pipe;
wherein, the end-to-end splicing specifically comprises: and inserting an anchoring rod 3 into each channel 2, and fixedly connecting the anchoring rods 3 in the plurality of U-shaped splicing sections 11 to be spliced end to obtain the annular pipe joint.
In the construction method of the embodiment, in the pipe jacking process, the splicing between the U-shaped splicing sections 11 in the single pipe joint 1 is completed by the tensioned anchoring rods 3, and the tensioned anchoring rods 3 provide a pretightening force for the U-shaped splicing sections 11, so that in the pipe jacking process, the U-shaped splicing sections 11 are stably connected, and the pipe joint 1 is stable in structure and good in integrity.
In a preferred embodiment, as shown in fig. 1-2, two U-shaped splicing sections 11 are respectively integrally formed and are sequentially spliced by means of the anchoring rod 3 during construction.
In an alternative embodiment, the split U-splice 11: every U type concatenation section 11 includes two L type concatenation sections, and L type concatenation section is the shaping alone, and before carrying out the push pipe construction, will splice two L type concatenation sections of shaping alone into U type concatenation section 11 earlier. In the embodiment, the L-shaped splicing section has smaller size compared with the U-shaped splicing section, is convenient to transport and manufacture, is suitable for manufacturing large-size jacking pipes, and reduces the transportation cost.
In a further embodiment, the U-shaped splice section 11 is further split: every U type concatenation section 11 includes two L type concatenation sections and a plurality of extension section, and extension section and L type concatenation section shaping alone, before the push pipe construction, will splice two L type concatenation sections and one or more than one extension section of shaping alone into U type concatenation section 11 earlier. In this embodiment, the structure of the U-shaped splicing section 11 is further disassembled, so that the pipe jacking system is more suitable for manufacturing large-storage pipe jacking, and the transportation cost is further reduced.
However, the split mode of the U-shaped splicing section 11 inevitably leads to the increase of the splicing end faces of the pipe joints, and improves the instability of the pipe joint structure; during the construction of the jacking pipe, the mode of integrally forming the U-shaped splicing section 11 is considered preferentially. For above-mentioned split U type concatenation section 11's mode, the concatenation face of tube coupling 1 in the work progress has been reduced to U type concatenation section 11 integrated into one piece's mode, and the structure is overall stable good, and difficult emergence is damaged.
In one embodiment, after splitting the U-shaped splicing section 11, the split L-shaped splicing section and/or the middle section are spliced by means of the anchoring rod 3 before pipe jacking construction, as shown in fig. 3-4.
In one embodiment, the sequential splicing by means of the anchoring bar 3 during the construction process is further explained: one end of the anchoring bar 3 is anchored at the corner of the U-shaped splicing section 11.
In one embodiment, a wedge 13 is provided at the corner of the U-shaped splicing section 11; one end of the anchor rod 3 is anchored on the end face of the wedge 13.
In one embodiment, one end of the anchor rod 3 is anchored to the end face of the wedge 13, specifically: the anchoring plate 5, the gasket 6 and the nut 7 are sequentially sleeved into one end of the anchoring rod 3, wherein the nut 7 is in threaded fit with the anchoring rod 3, the anchoring plate 5 is pressed on the end face of the wedge-shaped opening 13, and the outer diameter of the anchoring plate 5 is larger than the inner diameter of the channel 2.
In an embodiment, a square opening 14 is arranged on the splicing end face of the U-shaped splicing section 11 corresponding to the channel 2, and in step S2, the U-shaped splicing sections 11 are sequentially spliced end to end, specifically: an anchor rod connector 4 is arranged in the square opening 14, one end of the anchor rod 3 of one U-shaped splicing section 11 is connected with one end of the anchor rod connector 4 in a threaded mode, and one end of the anchor rod 3 of the other U-shaped splicing section 11 is rotatably connected into the other end of the anchor rod connector 4.
In one embodiment, step S1 further includes: the surface of the U-shaped splicing section 11 is provided with a grouting hole 8 connected into the channel 2; after step S2 and before step S3, after forming the annular pipe joint 1, grouting material is poured into the passage 2 from the grouting hole 8; after grouting, the grouting holes 8 are sealed.
In one embodiment, after step S2 and before step S3, wedge 13 is filled with grout and sealed.
In one embodiment, step S1 further includes: and a positioning structure for the contraposition installation of the U-shaped splicing section 11 is arranged on the U-shaped splicing section 11.
In one embodiment, the positioning structure includes a positioning hole and a positioning pin, the positioning hole is disposed on the splicing end face of the U-shaped splicing section 11, the positioning holes on the splicing end faces spliced with each other are in one-to-one correspondence, and the positioning pin is disposed in two corresponding positioning holes. In other embodiments, the positioning structure may be in other forms, such as a combination of protrusions and recesses, an alignment structure disposed on both sides of the U-shaped splicing section 11, and the like.
The third aspect of the embodiment of the present invention provides a prefabricated rectangular jacking pipe, which is obtained by the jacking pipe construction method provided in the embodiment of the second aspect, or formed by splicing a plurality of pipe joints 1 provided in the embodiment of the first aspect.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. A prefabricated rectangular jacking pipe construction method is characterized by comprising the following steps:
s1, prefabricating a U-shaped splicing section (11); the U-shaped splicing section (11) is provided with two arms which are parallel to each other, and channels (2) which penetrate through the corresponding arms are arranged in the two arms;
s2, splicing the U-shaped splicing sections (11) to form a pipe joint; the method comprises the following steps: sequentially splicing the U-shaped splicing sections (11) end to obtain a pipe joint with a closed structure;
s3, splicing the pipe joints to form a jacking pipe;
wherein, the end-to-end splicing specifically comprises: and inserting an anchoring rod (3) into each channel (2), and fixedly connecting the anchoring rods (3) in a plurality of U-shaped splicing sections (11) to be spliced end to obtain the annular pipe joint.
2. The method as claimed in claim 1, wherein one end of the anchoring bar (3) is anchored at the corner of the U-shaped splicing section (11).
3. The method of constructing prefabricated rectangular pipe jacking according to claim 3,
a wedge-shaped opening (15) is formed in the corner of the U-shaped splicing section (11), and one end of the anchoring rod (3) is anchored on the end face of the wedge-shaped opening (15).
4. The prefabricated rectangular pipe jacking construction method according to claim 4, wherein one end of the anchoring rod (3) is anchored on the end surface of the wedge-shaped opening (15), and specifically comprises the following steps: and sequentially sleeving an anchoring plate (5), a gasket (6) and a screw cap (7) into one end of the anchoring rod (3), wherein the screw cap (7) is in threaded fit with the anchoring rod (3), the anchoring plate (5) is pressed on the end surface of the wedge-shaped opening (15), and the outer diameter of the anchoring plate (5) is larger than the inner diameter of the channel (2).
5. The prefabricated rectangular pipe jacking construction method according to claim 1, wherein a square opening (16) is arranged on the splicing end surface of the U-shaped splicing section (11) corresponding to the channel (2),
in step S2, the sequentially splicing the plurality of U-shaped splicing sections (11) end to end specifically comprises: an anchor rod connector (4) is arranged in the square opening (16), one end of the anchor rod (3) of one U-shaped splicing section (11) is in threaded connection with one end of the anchor rod connector (4), and one end of the anchor rod (3) of the other U-shaped splicing section (11) is rotatably connected into the other end of the anchor rod connector (4).
6. A prefabricated rectangular pipe jacking construction method according to claim 1, wherein the surface of said pipe section is provided with grouting holes (8) connected into the channel (2);
before step S3, grouting material is poured into the channel (2) from the grouting holes (8).
7. The prefabricated rectangular pipe jacking construction method according to claim 1, wherein the step S1 further comprises: and a positioning structure for aligning and installing the U-shaped splicing section (11) is arranged on the U-shaped splicing section (11).
8. The method for constructing the prefabricated rectangular jacking pipe according to claim 8, wherein the positioning structures comprise positioning holes (9) and positioning pins (10), the positioning holes (9) are formed in the first end surfaces (13), the positioning holes (9) in the two spliced first end surfaces (13) are in one-to-one correspondence, and the positioning pins (10) are arranged in the two corresponding positioning holes (9).
9. A prefabricated rectangular jacking pipe, characterized in that the jacking pipe is manufactured by the construction method of any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911385135.3A CN111206618A (en) | 2019-12-28 | 2019-12-28 | Prefabricated rectangular jacking pipe and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911385135.3A CN111206618A (en) | 2019-12-28 | 2019-12-28 | Prefabricated rectangular jacking pipe and construction method thereof |
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| CN111206618A true CN111206618A (en) | 2020-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911385135.3A Pending CN111206618A (en) | 2019-12-28 | 2019-12-28 | Prefabricated rectangular jacking pipe and construction method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3622965C1 (en) * | 1986-07-09 | 1987-11-05 | Zueblin Ag | Prefabricated pipe or pipe ring |
| CN202559384U (en) * | 2012-05-09 | 2012-11-28 | 东南大学 | Prefabricated assembled pipe-jacking working well |
| CN106838463A (en) * | 2017-03-06 | 2017-06-13 | 河海大学 | The fastener inserts and usage of longitudinal integral rigidity after raising rectangular top plumber |
| CN109184740A (en) * | 2018-10-19 | 2019-01-11 | 中铁隧道局集团有限公司 | Assembled tube coupling and preparation method thereof |
| CN110130904A (en) * | 2019-05-30 | 2019-08-16 | 国网河北省电力有限公司石家庄供电分公司 | A kind of simulation jacking pipe joints for push pipe tunneling construction simulation test |
-
2019
- 2019-12-28 CN CN201911385135.3A patent/CN111206618A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3622965C1 (en) * | 1986-07-09 | 1987-11-05 | Zueblin Ag | Prefabricated pipe or pipe ring |
| CN202559384U (en) * | 2012-05-09 | 2012-11-28 | 东南大学 | Prefabricated assembled pipe-jacking working well |
| CN106838463A (en) * | 2017-03-06 | 2017-06-13 | 河海大学 | The fastener inserts and usage of longitudinal integral rigidity after raising rectangular top plumber |
| CN109184740A (en) * | 2018-10-19 | 2019-01-11 | 中铁隧道局集团有限公司 | Assembled tube coupling and preparation method thereof |
| CN110130904A (en) * | 2019-05-30 | 2019-08-16 | 国网河北省电力有限公司石家庄供电分公司 | A kind of simulation jacking pipe joints for push pipe tunneling construction simulation test |
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Application publication date: 20200529 |
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