CN216429610U - Starting counter-force supporting structure for large-section rectangular oblique jacking pipe construction - Google Patents
Starting counter-force supporting structure for large-section rectangular oblique jacking pipe construction Download PDFInfo
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- CN216429610U CN216429610U CN202122369783.9U CN202122369783U CN216429610U CN 216429610 U CN216429610 U CN 216429610U CN 202122369783 U CN202122369783 U CN 202122369783U CN 216429610 U CN216429610 U CN 216429610U
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Abstract
The utility model discloses an originating counterforce supporting structure for large-section rectangular oblique-crossing pipe-jacking construction, which comprises a rear seat wall obliquely arranged in an originating working well and arranged at the rear side of a pipe-jacking machine and a back-leaning connecting structure obliquely arranged in the originating working well and connected with the rear seat wall; the longitudinal section of the rear seat wall is of an L-shaped structure, and the rear seat wall is tightly attached to the well wall of the starting working well; the rear backrest connecting structure comprises two rigid rear backrest plates symmetrically arranged on the horizontal section of the rear seat wall; the bottom surface of the rear backup plate is tightly attached to the horizontal section of the rear seat wall, and the side surface of the rear backup plate is welded and fixed with the connecting steel plate in the rear seat wall. The utility model discloses a pour back seat wall and installation in the working well of starting lean on connection structure after, utilize connecting steel plate with the two interconnect together, do the push bench provides the counter-force and supports the in-process that the push bench advances provides counter-force thrust effect.
Description
Technical Field
The utility model belongs to the technical field of the push pipe construction, especially, relate to a big section rectangle oblique crossing push pipe construction is with counter-force bearing structure of originating.
Background
The pipe-jacking construction method is a trenchless construction method, and the pipeline can be buried under the condition of less excavation or no excavation by the construction method; at present, the pipe jacking construction technology is widely applied to the laying of urban underground water supply and drainage pipelines and natural gas conveying pipelines. In urban underground engineering construction, rectangular jacking pipes are widely used for construction, such as subway station entrances and exits, underground passages and the like. The construction of such engineering needs to have one working well for pipe jacking to start (called as a starting well) and one working well for pipe jacking to reach to receive (called as a receiving well). In general engineering design, the originating well and the receiving well are both perpendicular to the pipe jacking driving axis and meet the size requirement of normal originating and arriving of the pipe jacking.
However, when there are many urban underground pipelines, in order to effectively avoid the pipelines and reduce the damage to the pipelines, oblique crossing originating and receiving construction occurs in pipe-jacking construction, and meanwhile, the advancing direction of pipe-jacking at the originating end, the jacking direction of pipe-jacking and receiving of pipe-jacking cannot be well guaranteed to be on the same axis, and oblique crossing occurs. In order to ensure the normal operation of the push bench at the initial end, an initial counter force supporting structure is provided to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough among the above-mentioned prior art provides a counter-force bearing structure is used in construction of large section rectangle skew push pipe, through pour back seat wall and installation in the well of starting lean on connection structure after, utilize connecting steel plate with the two interconnect together, do the pipe pushing jack provides the counter-force and supports the in-process that the pipe pushing jack pushed forward provides counter-force thrust effect.
In order to solve the technical problem, the utility model discloses a technical scheme is: an initial counter-force supporting structure for large-section rectangular oblique-crossing pipe jacking construction, wherein an included angle alpha exists between the jacking axis of a pipe jacking machine and the axis of an initial working well in the length direction, and the value range of alpha is more than 0 degree and less than alpha and less than 90 degrees, and the initial counter-force supporting structure is characterized in that: the pipe jacking system comprises a rear seat wall which is obliquely arranged in an originating working well and is arranged on the rear side of a pipe jacking machine, and a rear leaning connection structure which is obliquely arranged in the originating working well and is connected with the rear seat wall;
the longitudinal section of the rear seat wall is of an L-shaped structure, and the rear seat wall is tightly attached to the well wall of the originating working well;
the rear backrest connecting structure comprises two rigid rear backup plates which are symmetrically arranged on the horizontal section of the rear seat wall, the two rigid rear backup plates are arranged along the length direction of the rear seat wall, and the rigid rear backup plates are vertically arranged on the horizontal section of the rear seat wall; the bottom surface of the rear backup plate is tightly attached to the horizontal section of the rear seat wall, and the side surface of the rear backup plate is welded and fixed with the connecting steel plate in the rear seat wall.
Foretell big section rectangle oblique crossing push pipe construction is with reaction bearing structure of starting, its characterized in that: a plurality of fixed steel plates are vertically embedded in the rear seat wall, the fixed steel plates are uniformly distributed on a well wall of the originating working well close to the rear side of the push bench, and the fixed steel plates are uniformly distributed on the well wall of the originating working well.
Foretell big section rectangle oblique crossing push pipe construction is with reaction bearing structure of starting, its characterized in that: a plurality of connecting steel plates are horizontally embedded in the rear seat wall, and the number of the connecting steel plates is equal to that of the fixing steel plates and corresponds to that of the fixing steel plates one to one.
Foretell big section rectangle oblique crossing push pipe construction is with reaction bearing structure of starting, its characterized in that: the rear seat wall comprises a vertical section and a horizontal section, the vertical section is clung to the wall of the originating working well, the horizontal section is horizontally arranged at the bottom of the originating working well, and the vertical section and the horizontal section are integrally formed.
Foretell big section rectangle oblique crossing push pipe construction is with reaction bearing structure of starting, its characterized in that: the vertical section is obliquely arranged in the originating working well, the inclination direction of the vertical section is consistent with that of the pipe jacking machine, the cross section of the vertical section is a right-angled triangle, one side of the vertical section is abutted against the top angle of the originating working well, and the included angle between the end and the rear well wall of the originating working well is 90-alpha; the other side of the vertical section is abutted against the wall of the originating working well, and the included angle between the end of the vertical section and the wall of the originating working well is 90 degrees + alpha.
Foretell big section rectangle oblique crossing push pipe construction is with reaction bearing structure of starting, its characterized in that: the horizontal section is obliquely arranged in the originating working well, the inclination direction of the horizontal section is consistent with that of the pipe jacking machine, and the included angles between the horizontal section and the wall of the originating working well are 90 degrees to alpha and 90 degrees to alpha respectively.
Compared with the prior art, the utility model has the following advantage:
1. the utility model discloses a pour back seat wall and installation in the working well of starting lean on connection structure after, utilize connecting steel plate with the two interconnect together, do the push bench provides the counter-force and supports the in-process that the push bench advances provides counter-force thrust effect.
2. The utility model discloses in set up the steel sheet of connection in the back seat wall, on the one hand can be used to connect the back seat wall with lean on connection structure after, on the other hand has strengthened the intensity of back seat wall has improved the stability of back seat wall.
To sum up, the utility model discloses a pour back seat wall and installation in the well of starting the connection structure is leaned on to the back, utilizes connecting steel plate to be in the same place the two interconnect, does the pipe pushing jack provides the counter-force and supports the in-process that the pipe pushing jack pushed in provides counter-force thrust effect.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the position relationship between the rear seat wall and the push bench in the originating working well.
Fig. 3 is a usage state diagram of the present invention.
Description of reference numerals:
1-a pipe jacking machine; 2-starting a working well; 3, connecting steel plates;
7, fixing a steel plate; 8-a rear backup plate; 9-pipe jacking channel;
10, embedding a steel ring; 20-a track; 24-top iron;
25-top ring; 27-ground; 28, a building enclosure;
29-rear seat wall.
Detailed Description
As shown in fig. 1, fig. 2 and fig. 3, the present invention includes a rear seat wall 29 obliquely disposed in the originating work well 2 and disposed at the rear side of the push bench 1, and a reclining connection structure obliquely disposed in the originating work well 2 and connected to the rear seat wall 29;
the longitudinal section of the rear seat wall 29 is of an L-shaped structure, and the rear seat wall 29 is tightly attached to the wall of the originating working well 2;
the rear backrest connecting structure comprises two rigid rear backrest plates 8 which are symmetrically arranged on the horizontal section of the rear seat wall 29, the two rigid rear backrest plates 8 are arranged along the length direction of the rear seat wall 29, and the rigid rear backrest plates 8 are vertically arranged on the horizontal section of the rear seat wall 29; the bottom surface of the rear backup plate 8 is tightly attached to the horizontal section of the rear seat wall 29, and the side surface of the rear backup plate 8 is welded and fixed with the connecting steel plate 3 in the rear seat wall 29.
The utility model discloses a back seat wall 29 and installation are pour in the well 2 of starting lean on connection structure after, utilize connecting steel plate 3 to be in the same place the two interconnect, do push bench 1 provides the counter-force and supports the in-process that push bench 1 pushed in provides counter-force thrust effect.
The connecting steel plate 3 is arranged in the rear seat wall 29, so that the connecting steel plate can be used for connecting the rear seat wall 29 and the backrest connecting structure, the strength of the rear seat wall 29 is enhanced, and the stability of the rear seat wall 29 is improved.
In practical use, the starting working well 2 is arranged below the ground 27, the periphery of the starting working well 2 is firstly enclosed to form an enclosure structure 28, and then construction of rectangular oblique jacking pipes is carried out. A track 20 for the push bench 1 to advance is laid in the originating working well 2, the push bench 1 is constructed in the push bench channel 9, and in order to keep the stability of the push bench channel 9, an embedded steel ring 10 is installed at the entrance of the push bench channel 9 and can be used for installing mud and sand leakage prevention curtain cloth.
It should be noted that, pour earlier according to the design requirement originating work well 2, then carry out push pipe construction work in originating work well 2, the utility model discloses in because of there is the deviation between the central axis of the jack-in axis of push bench 1 and originating work well 2, for solving this deviation, need pour back seat wall 29, make things convenient for follow-up push bench 1's jack-in. The rear backup plate 8 is made of 400mm thick steel, and the central line of the rear backup connection structure is coincided with the jacking axis of the push bench 1 by welding the rear backup plate 8 and the connecting steel plate 3. The rear-leaning connecting structure and the rear seat wall 29 are welded through the connecting steel plates 3, so that the structure and the wall body are connected with each other, and a reaction thrust effect is achieved for jacking of the push bench 1.
As shown in fig. 1 and fig. 3, in this embodiment, a plurality of fixed steel plates 7 are vertically embedded in the rear seat wall 29, the plurality of fixed steel plates 7 are uniformly distributed on the wall of the originating working well 2 close to the rear side of the pipe jacking machine 1, and the plurality of fixed steel plates 7 are uniformly distributed on the wall of the originating working well 2.
As shown in fig. 1 and 3, in this embodiment, a plurality of connecting steel plates 3 are horizontally embedded in the rear seat wall 29, and the number of the connecting steel plates 3 is equal to that of the fixing steel plates 7 and corresponds to one another.
As shown in fig. 1 and 3, in the present embodiment, the rear seat wall 29 includes a vertical section abutting against the wall of the originating working well 2 and a horizontal section horizontally disposed at the bottom of the originating working well 2, and the vertical section and the horizontal section are integrally formed.
As shown in fig. 2, in this embodiment, the vertical section is obliquely arranged in the originating working well 2, the inclination direction of the vertical section is consistent with the inclination direction of the pipe push bench 1, the cross section of the vertical section is a right triangle, one side of the vertical section abuts against the vertex angle of the originating working well 2, and the included angle between the end and the rear well wall of the originating working well 2 is 90 ° - α; the other side of the vertical section is abutted against the wall of the originating working well 2, and the included angle between the other side of the vertical section and the wall of the originating working well 2 is 90 degrees + alpha.
As shown in fig. 2, in this embodiment, the horizontal section is obliquely arranged in the originating working well 2, an inclination direction of the horizontal section is consistent with an inclination direction of the push bench 1, and included angles between the horizontal section and the wall of the originating working well 2 are 90 ° - α and 90 ° + α, respectively.
In actual use, when the rear seat wall 29 is poured, a plurality of fixed steel plates 7 are pre-buried on the well wall of the originating working well 2 close to the rear side of the pipe jacking machine 1, and the fixed steel plates 7 are uniformly distributed on the well wall of the originating working well 2; then vertically erecting a first side template 4 at the bottom of the originating working well 2 along the width direction of the originating working well 2, wherein the first side template 4 is obliquely arranged in the originating working well 2, the inclination direction of the first side template 4 is consistent with that of the push bench 1, and the first side template 4 and the wall of the originating working well 2 enclose an enclosed area with a right trapezoid cross section;
then horizontally laying a second side formwork 5 on the top of the first side formwork 4, wherein the second side formwork 5 is obliquely arranged in the originating working well 2, the inclination direction of the second side formwork 5 is consistent with that of the pipe jacking machine 1, and the width of the second side formwork 5 is smaller than the horizontal distance between the first side formwork 4 and the wall of the originating working well 2;
a third side formwork 6 is vertically erected on one side, far away from the first side formwork 4, of the second side formwork 5, the third side formwork 6 is obliquely arranged in the originating working well 2, the inclination direction of the third side formwork 6 is consistent with that of the push bench 1, and the third side formwork 6 and the well wall of the originating working well 2 are fixedly connected through a connecting steel plate 3;
the first side template 4, the second side template 5 and the third side template 6 are integrally formed, and the first side template 4, the second side template 5, the third side template 6, the well wall of the originating working well 2 and the well bottom of the originating working well 2 enclose a forming cavity with an L-shaped longitudinal section; the fixed steel plate 7 is arranged in the forming cavity;
and finally, pouring concrete in the enclosed forming cavity, and after the concrete is solidified, removing the first side formwork 4, the second side formwork 5 and the third side formwork 6 to obtain the rear seat wall 29 with the L-shaped longitudinal section.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (6)
1. The utility model provides a big section rectangle oblique crossing push pipe construction is with starting counter-force bearing structure, there is contained angle alpha and the value range of alpha is 0 degrees < alpha < 90 between the axis of advancing of push bench (1) and the axis of starting working well (2) length direction, its characterized in that: the pipe jacking system comprises a rear seat wall (29) which is obliquely arranged in an originating working well (2) and is arranged at the rear side of a pipe jacking machine (1), and a rear leaning connection structure which is obliquely arranged in the originating working well (2) and is connected with the rear seat wall (29);
the longitudinal section of the rear seat wall (29) is of an L-shaped structure, and the rear seat wall (29) is tightly attached to the well wall of the starting working well (2);
the rear backrest connecting structure comprises two rear backrest plates (8) symmetrically arranged on the horizontal section of the rear seat wall (29), the two rear backrest plates (8) are arranged along the length direction of the rear seat wall (29), and the rear backrest plates (8) are vertically arranged on the horizontal section of the rear seat wall (29); the bottom surface of the rear backup plate (8) is tightly attached to the horizontal section of the rear seat wall (29), and the side surface of the rear backup plate (8) is welded and fixed with the connecting steel plate (3) in the rear seat wall (29).
2. The starting counterforce supporting structure for large-section rectangular oblique jacking pipe construction according to claim 1, wherein: a plurality of fixed steel plates (7) are vertically pre-buried in the rear seat wall (29), and are a plurality of the fixed steel plates (7) are uniformly distributed on the wall of the well on the rear side of the pipe jacking machine (1), and the starting working well (2) is close to the wall of the well, and the fixed steel plates (7) are uniformly distributed on the wall of the well of the starting working well (2).
3. The starting counterforce supporting structure for large-section rectangular oblique-crossing pipe jacking construction according to claim 2, characterized in that: a plurality of connecting steel plates (3) are horizontally embedded in the rear seat wall (29), and the number of the connecting steel plates (3) is equal to that of the fixed steel plates (7) and corresponds to that of the fixed steel plates one to one.
4. The starting counterforce supporting structure for large-section rectangular oblique-crossing pipe jacking construction according to claim 1, characterized in that: the rear seat wall (29) comprises a vertical section tightly attached to the wall of the originating working well (2) and a horizontal section horizontally arranged at the bottom of the originating working well (2), and the vertical section and the horizontal section are integrally formed.
5. The starting counterforce support structure for large-section rectangular oblique-crossing pipe jacking construction according to claim 4, characterized in that: the vertical section is obliquely arranged in the originating working well (2), the inclination direction of the vertical section is consistent with that of the push bench (1), the cross section of the vertical section is a right-angled triangle, one side of the vertical section is abutted to the vertex angle of the originating working well (2), and the included angle between the end and the rear well wall of the originating working well (2) is 90-alpha; the other side of the vertical section is abutted against the wall of the originating working well (2), and the included angle between the other side of the vertical section and the wall of the originating working well (2) is 90 degrees + alpha.
6. The starting counterforce support structure for large-section rectangular oblique-crossing pipe jacking construction according to claim 4, characterized in that: the horizontal section is obliquely arranged in the originating working well (2), the inclination direction of the horizontal section is consistent with that of the push bench (1), and the included angles between the horizontal section and the wall of the originating working well (2) are 90 degrees to alpha and 90 degrees to alpha respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122369783.9U CN216429610U (en) | 2021-09-28 | 2021-09-28 | Starting counter-force supporting structure for large-section rectangular oblique jacking pipe construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122369783.9U CN216429610U (en) | 2021-09-28 | 2021-09-28 | Starting counter-force supporting structure for large-section rectangular oblique jacking pipe construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216429610U true CN216429610U (en) | 2022-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122369783.9U Active CN216429610U (en) | 2021-09-28 | 2021-09-28 | Starting counter-force supporting structure for large-section rectangular oblique jacking pipe construction |
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| Country | Link |
|---|---|
| CN (1) | CN216429610U (en) |
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2021
- 2021-09-28 CN CN202122369783.9U patent/CN216429610U/en active Active
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