CN213540423U - Annular antifriction grouting system for ultra-large section rectangular jacking pipe - Google Patents
Annular antifriction grouting system for ultra-large section rectangular jacking pipe Download PDFInfo
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- CN213540423U CN213540423U CN202022621494.9U CN202022621494U CN213540423U CN 213540423 U CN213540423 U CN 213540423U CN 202022621494 U CN202022621494 U CN 202022621494U CN 213540423 U CN213540423 U CN 213540423U
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- pipe joint
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- slip casting
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Abstract
The utility model discloses an ultra-large section rectangular pipe jacking annular antifriction grouting system, which comprises a horizontally arranged pipe joint, wherein the left part of the pipe joint is provided with a plurality of grouting holes which are non-uniformly distributed along the circumferential direction of the pipe joint, grouting pipes are coaxially inserted in the grouting holes, the outer wall of the pipe joint is provided with a grouting groove which surrounds the pipe joint for a circle, the section of the grouting groove is generally trapezoidal, two inclined planes which face the outer side of the pipe joint are formed between the grouting groove and the outer wall of the pipe joint, the grouting groove is communicated with the grouting holes, the pipe joint is sleeved with a lantern ring which is arranged in the grouting groove, the outer surface of the lantern ring is coplanar with the outer wall of the pipe joint, the lantern ring is respectively provided with gaps between the two inclined planes and is connected with the bottom surface of the grouting groove, and the lantern ring is connected with the pipe, a grouting opening is formed between the inclined plane arranged on the left side of the two inclined planes and the sleeve ring, and a grout supplementing opening is formed between the inclined plane arranged on the right side of the two inclined planes and the sleeve ring; the utility model relates to an it is ingenious, can reach good continuous slip casting effect under the condition of less pressure and less slip casting volume.
Description
Technical Field
The utility model relates to an underground works push pipe construction field especially relates to super large section class rectangle push pipe annular antifriction slip casting system.
Background
The thixotropic slurry grouting system injects thixotropic slurry in the pipe jacking construction process according to the actual condition. The injected thixotropic slurry diffuses to the periphery, the diffusion diameter and the grouting amount are mainly related to the grouting pressure, the diffusion diameter is large when the pressure is large, the grouting amount is large, the diffusion diameter is small when the grouting pressure is small, and the grouting amount is small. It is important how to form a complete mud jacket around the pipe joint with thixotropic mud at a lower pressure and a lower grouting amount, and if the grouting pressure is higher, the thixotropic mud will disturb the formation more and damage the formed mud jacket, which not only easily causes the ground subsidence to be difficult to control, but also causes unnecessary waste in the economic aspect due to the higher grouting amount.
Disclosure of Invention
To the situation, for overcoming prior art's defect, the utility model aims to provide a super large section class rectangle push pipe annular antifriction slip casting system can reduce grouting pressure and slip casting volume, and forms complete mud cover easily and has certain guard action to the mud cover of formation.
The technical scheme of its solution is, including the pipe coupling that transversely sets up, there are a plurality of slip casting holes along pipe coupling circumferencial direction inhomogeneous distribution in the pipe coupling left part, the downthehole coaxial cartridge of slip casting has the slip casting pipe, set up the slip casting groove that encircles pipe coupling a week on the pipe coupling outer wall, the slip casting groove cross-section is general trapezoidal, has formed two inclined planes towards the pipe coupling outside between slip casting groove and the pipe coupling outer wall, slip casting groove and slip casting hole intercommunication, the cover is equipped with the lantern ring of arranging in the slip casting groove on the pipe coupling, the lantern ring surface is coplane with the pipe coupling outer wall, the lantern ring is gapped respectively with slip casting groove bottom surface, between two inclined planes, the lantern ring is connected through a plurality of gusset along pipe coupling circumferencial direction distribution, it forms the slip casting mouth to place between the inclined plane of left side and the lantern ring in two inclined planes, it forms the benefit thick liquid mouth to place between the inclined plane of right side.
Due to the adoption of the technical scheme, compared with the prior art, the utility model has the advantages that;
1. the utility model discloses a have two passageways that can supply thixotropic mud to flow from the slip casting inslot, slip casting mouth and benefit thick liquid mouth have increased the flow promptly.
2. The utility model discloses a lantern ring is used for blockking the thixotropic mud along the motion of slip casting pipe axis direction, has slowed down the impact force of thixotropic mud for the thixotropic mud of injection pipe section outer wall has protected the mud cover to the impact force greatly reduced of the mud cover that has formed to a certain extent, and the space between the slip casting groove and the lantern ring has realized good storage thick liquid effect.
3. The utility model discloses a grout outlet is main grout outlet, and when thixotropic mud was not good to some partial slip casting effects of soil body wall, the supplementary grout outlet carried out the secondary and supplyed the slip casting to the above-mentioned soil body wall that the grouting effect is bad good as supplementary grout outlet, and good continuous slip casting effect has been realized in setting up of two grout outlets, has effectively guaranteed that thixotropic mud can form complete mud cover around the tube coupling.
4. The utility model discloses an inclined plane setting has reduced the sliding resistance of thixotropic mud for thixotropic mud can be at the outer wall of less slip casting pressure injection tube coupling.
5. The utility model discloses a slip casting mouth has the water conservancy diversion effect with the benefit thick liquid mouth, has avoided the condition that prior art's grouting in-process thixotropic mud between adjacent hole has great combination, has reduced grouting pressure, has guaranteed to reach good slip casting effect under the condition of less grouting volume.
Drawings
Fig. 1 is a front sectional view of the present invention.
Fig. 2 is a perspective view of the present invention.
Fig. 3 is a left side sectional view of the present invention.
Fig. 4 is a partial cross-sectional view of the joint surface of the two pipe sections of the present invention when they are joined together.
The attached drawings are marked as follows: 1-pipe joint, 2-grouting hole, 3-grouting pipe, 4-grouting groove, 5-inclined plane, 6-lantern ring, 7-grouting opening, 8-grout supplementing opening, 9-check valve, 10-steel lantern ring, 11-groove and 12-wedge-shaped rubber ring.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in figures 1 to 4, the utility model comprises a pipe joint 1 which is transversely arranged, a plurality of grouting holes 2 which are non-uniformly distributed along the circumferential direction of the pipe joint 1 are arranged at the left part of the pipe joint 1, grouting pipes 3 are coaxially inserted in the grouting holes 2, a grouting groove 4 which surrounds the circumference of the pipe joint 1 is arranged on the outer wall of the pipe joint 1, the section of the grouting groove 4 is generally trapezoidal, two inclined planes 5 which face the outer side of the pipe joint 1 are formed between the grouting groove 4 and the outer wall of the pipe joint 1, the grouting groove 4 is communicated with the grouting holes 2, a lantern ring 6 which is arranged in the grouting groove 4 is sleeved on the pipe joint 1, the outer surface of the lantern ring 6 is coplanar with the outer wall of the pipe joint 1, the lantern ring 6 is respectively connected with the bottom surface of the grouting groove 4 and a gap between the two inclined planes 5, the lantern ring 6 is connected with the pipe joint 1 through a, the two inclined planes 5 are arranged between the left inclined plane 5 and the lantern ring 6 to form a grouting opening 7, and the two inclined planes 5 are arranged between the right inclined plane 5 and the lantern ring 6 to form a grout supplementing opening 8.
The utility model discloses during the use, thixotropic mud is in slip casting groove 4 through 3 injection slip casting pipes of slip casting, and lantern ring 6 has blockked the motion of thixotropic mud along 3 axes of slip casting pipe, and thixotropic mud gathers in slip casting groove 4, and slip casting groove 4 has realized storing up the thick liquid effect, and when thixotropic mud amasss full slip casting groove 4, thixotropic mud will along two inclined planes 5 are "carpet formula" from slip casting mouth 7 and benefit thick liquid mouth 8 respectively and evenly to the diffusion in the 1 outside of tube coupling, until the 1 outside of tube coupling forms complete mud cover.
Furthermore, the inner surface of the lantern ring 6 is connected with the bottom surface of the grouting groove 4 through a plurality of rib plates distributed along the circumferential direction of the pipe joint 1.
Furthermore, the side surface of the lantern ring 6 is connected with the inclined surface 5 of the corresponding grouting groove 4 through a plurality of rib plates distributed along the circumferential direction of the pipe joint 1.
Furthermore, two side surfaces of the lantern ring 6 are respectively parallel to the corresponding inclined surfaces 5, so that the sliding resistance of the thixotropic slurry is reduced.
Furthermore, the sectional area of the grouting opening 7 is larger than that of the grout supplementing opening 8, so that the flow of the grouting opening 7 is larger than that of the grout supplementing opening 8, the grouting opening 7 serves as a main channel for injecting thixotropic slurry into the outer surface of the pipe joint 1, when the grouting effect of the thixotropic slurry on the uneven soil wall surface through the grouting opening 7 is poor, the grout supplementing opening 8 serves as an auxiliary channel for injecting the thixotropic slurry onto the soil wall surface with the poor grouting effect, and the arrangement of the grouting opening 7 and the grout supplementing opening 8 ensures the excellent continuous grouting effect.
Further, the number of the grouting holes 2 at the upper part of the pipe joint 1 is more than that of the grouting holes 2 at the lower part of the pipe joint 1; when thixotropic mud injects the pipe joint 1 outer wall in the slip casting hole 2, because the dead weight, thixotropic mud on pipe joint 1 upper portion can flow to pipe joint 1 lower part, and the slip casting hole 2 on pipe joint 1 upper portion is many for thixotropic mud cutoff phenomenon can not appear between two adjacent slip casting holes 2 of pipe joint 1 outer wall, has guaranteed that thixotropic mud can form the effect of complete mud cover around pipe joint 1.
Furthermore, a water stop steel ring is arranged at the axial center of the grouting hole 2.
Furthermore, a check valve 9 is arranged in the grouting pipe 3 to prevent the thixotropic slurry from flowing backwards.
Furthermore, a steel sleeve ring 10 coaxial with the pipe joint 1 is embedded at the right end of the pipe joint 1, the outer surface of the steel sleeve ring 10 is aligned with the outer wall of the pipe joint 1, and the steel sleeve ring 10 extends outwards to the right side of the pipe joint 1.
Furthermore, the left end of the pipe joint 1 is provided with a groove 11 matched with the steel bushing ring 10, and the bottom surface of the groove 11 is sleeved with a wedge-shaped rubber ring 12.
The utility model discloses during the use, when connecting two tube couplings 1, align the steel lantern ring 10 on the tube coupling 1 and another 1 upper groove 11 of tube coupling and insert, insert the cooperation back when steel lantern ring 10 and recess 11, wedge rubber circle 12 under the effect of self elasticity, contradict with steel lantern ring 10 is sealed, the phenomenon of oozing, leaking has been avoided appearing in the faying face between two tube couplings 1.
Furthermore, the number of the grouting holes 2 on the pipe joint 1 is 18.
Furthermore, the depth of the grouting groove 4 is 8 mm, the length of the upper bottom of the section of the grouting groove 4 is 5 cm, and the distance between the grouting groove 4 and the left end face of the pipe joint 1 is 17.5 cm.
Furthermore, the grouting pipe 3 is made of a galvanized steel pipe with the diameter of 3.8 cm.
The utility model discloses there are two passageways that can supply thixotropic mud to flow from the slip casting inslot, slip casting mouth and benefit thick liquid mouth promptly, have increased the flow.
The utility model discloses a lantern ring is used for blockking the thixotropic mud along the motion of slip casting pipe axis direction, has slowed down the impact force of thixotropic mud for the thixotropic mud of injection pipe section outer wall has protected the mud cover to the impact force greatly reduced of the mud cover that has formed to a certain extent, and the space between the slip casting groove and the lantern ring has realized good storage thick liquid effect.
The utility model discloses a grout outlet is main grout outlet, and when thixotropic mud was not good to the soil body wall slip casting effect of part, the supplementary grout outlet carried out the secondary and supplyed the slip casting to the above-mentioned soil body wall that the grouting effect is bad good as supplementary grout outlet, and good continuous slip casting effect has been realized in setting up of two grout outlets, has effectively guaranteed that thixotropic mud can form complete mud cover around the tube coupling.
The utility model discloses an inclined plane setting has reduced the sliding resistance of thixotropic mud for thixotropic mud can be at the outer wall of less slip casting pressure injection tube coupling.
The utility model discloses a slip casting mouth has the water conservancy diversion effect with the benefit thick liquid mouth, has avoided the condition that prior art's grouting in-process thixotropic mud between adjacent hole has great combination, has reduced grouting pressure, has realized reaching good slip casting effect under the condition of less injected quantity.
The utility model discloses a check valve can prevent the backward flow of thixotropic mud effectively, has reduced the mud loss, can reduce grouting pressure, also can reduce the slip casting volume, reaches the purpose that makes thixotropic mud form complete mud cover around the tube coupling with less pressure and less slip casting volume.
The above description is provided for further details of the present invention with reference to the specific embodiments, which should not be construed as limiting the present invention; to the utility model discloses affiliated and relevant technical field's technical personnel are based on the utility model discloses under the technical scheme thinking prerequisite, the extension of doing and the replacement of operating method, data all should fall within the utility model discloses within the protection scope.
Claims (8)
1. Super large section class rectangle push pipe annular antifriction slip casting system, including pipe joint (1) that transversely sets up, a serial communication port, pipe joint (1) left part has along a plurality of slip casting holes (2) of pipe joint (1) circumferencial direction inhomogeneous distribution, coaxial cartridge has slip casting pipe (3) in slip casting hole (2), set up slip casting groove (4) around pipe joint (1) a week on pipe joint (1) outer wall, slip casting groove (4) cross-section is trapezoidal, two inclined planes (5) towards the pipe joint (1) outside have been formed between slip casting groove (4) and pipe joint (1) outer wall, slip casting groove (4) and slip casting hole (2) intercommunication, the cover is equipped with the lantern ring (6) of arranging in slip casting groove (4) on pipe joint (1), lantern ring (6) surface and pipe joint (1) outer wall coplane, lantern ring (6) respectively with slip casting groove (4) bottom surface, it is gapped between two inclined planes (5), between lantern ring (6) and pipe joint (1) through a plurality of circumferencial direction connection of pipe joint (1) week distribution, the gusset of following the ring (1), the week distribution The two inclined planes (5) are arranged between the left inclined plane (5) and the lantern ring (6) to form a grouting opening (7), and the two inclined planes (5) are arranged between the right inclined plane (5) and the lantern ring (6) to form a grout supplementing opening (8).
2. The ultra-large section rectangular jacking pipe annular antifriction grouting system of claim 1, characterized in that two side faces of the lantern ring (6) are respectively parallel to the corresponding inclined faces (5).
3. The ultra-large section rectangular jacking pipe annular friction-reducing grouting system according to claim 1, wherein the sectional area of the grouting port (7) is larger than that of the grout supplementing port (8).
4. The ultra-large section rectangular pipe jacking annular antifriction grouting system according to claim 1, characterized in that the number of the grouting holes (2) at the upper part of the pipe joint (1) is more than the number of the grouting holes (2) at the lower part of the pipe joint (1).
5. The ultra-large section rectangular jacking pipe annular antifriction grouting system according to claim 1, characterized in that a water stop steel ring is installed at the axial center of the grouting hole (2).
6. The ultra-large section rectangular jacking pipe annular anti-friction grouting system according to claim 1, wherein a check valve (9) is installed in the grouting pipe (3).
7. The ultra-large-section rectangular pipe jacking annular antifriction grouting system according to claim 1, characterized in that a steel collar (10) coaxial with the pipe joint (1) is pre-embedded at the right end of the pipe joint (1), the outer surface of the steel collar (10) is aligned with the outer wall of the pipe joint (1), and the steel collar (10) extends outwards to the right side of the pipe joint (1).
8. The ultra-large section quasi-rectangular pipe jacking annular friction-reducing grouting system according to claim 7, characterized in that a groove (11) matched with the steel sleeve ring (10) is formed in the left end of the pipe joint (1), and a wedge-shaped rubber ring (12) is sleeved on the bottom surface of the groove (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022621494.9U CN213540423U (en) | 2020-11-12 | 2020-11-12 | Annular antifriction grouting system for ultra-large section rectangular jacking pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022621494.9U CN213540423U (en) | 2020-11-12 | 2020-11-12 | Annular antifriction grouting system for ultra-large section rectangular jacking pipe |
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| Publication Number | Publication Date |
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| CN213540423U true CN213540423U (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022621494.9U Active CN213540423U (en) | 2020-11-12 | 2020-11-12 | Annular antifriction grouting system for ultra-large section rectangular jacking pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893219A (en) * | 2022-05-26 | 2022-08-12 | 中山大学 | Pipe joint assembly, pipe curtain and box culvert replacement pipe curtain construction method |
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2020
- 2020-11-12 CN CN202022621494.9U patent/CN213540423U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893219A (en) * | 2022-05-26 | 2022-08-12 | 中山大学 | Pipe joint assembly, pipe curtain and box culvert replacement pipe curtain construction method |
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