CN212336250U - Pipe jacking connection guide row structure - Google Patents
Pipe jacking connection guide row structure Download PDFInfo
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- CN212336250U CN212336250U CN202021947741.8U CN202021947741U CN212336250U CN 212336250 U CN212336250 U CN 212336250U CN 202021947741 U CN202021947741 U CN 202021947741U CN 212336250 U CN212336250 U CN 212336250U
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Abstract
The utility model relates to a push pipe guide bar structure of plugging into. The utility model aims at providing a push pipe is plugged into and is led row structure and push pipe method of plugging into to it is huge to solve the current push pipe and plug into the sewage drainage guide volume in leading the mode, and construction cost is high, the long problem of construction period. The technical scheme of the utility model is that: the structure is arranged in a current well, the current well is connected with an upstream current pipe and a downstream current pipe, the structure is provided with a newly-built guide and exhaust pipe, one end of the newly-built guide and exhaust pipe is inserted into the upstream current pipe, the other end of the newly-built guide and exhaust pipe is inserted into the downstream current pipe, the newly-built guide and exhaust pipe is communicated with the upstream current pipe and the downstream current pipe, and a newly-built blocking structure is adopted to block gaps between the newly-built guide and exhaust pipe; the newly-built guide exhaust pipe is divided into a plurality of guide exhaust pipe sections, the length of each guide exhaust pipe section is smaller than the inner diameter of the existing well, two adjacent guide exhaust pipe sections are connected through a hinge piece, and a flange used for being connected with the other guide exhaust pipe section is arranged at the hinged end of each guide exhaust pipe section. The utility model is suitable for a municipal administration water supply and drainage field.
Description
Technical Field
The utility model relates to a push pipe guide bar structure of plugging into. Is suitable for the field of municipal water supply and drainage.
Background
Municipal drainage pipeline is in the construction process, can meet the problem of plugging into of newly-built pipeline and present situation pipeline usually, especially in sewage pipeline construction process, because urban sewage system is in incessant operation, will realize newly-built pipeline and the pipeline that the present situation is moving plug into, need carry out sewage drainage guide construction first, with sewage from the upper reaches drainage guide to low reaches, ensure that the point of plugging into does not have rivers, just can make things convenient for the construction of plugging into of follow-up newly-built pipeline.
To burying the little connection of depth, pipeline diameter, it is comparatively easy to connect into usually, and sewage up-and-down stream leads the discharge capacity little, and required time limit for a project is short, can adopt the excavation construction to connect into, and its main construction sequence is: (1) determining the elevation and the coordinate of the newly-built pipeline; (2) excavating the groove to the outer side of the current well wall; (3) carrying out sewage drainage by arranging adjacent inspection wells above and below the existing well; (4) drilling a hole on the current well wall; (4) laying a pipeline to communicate the newly-built inspection well with the current inspection well; (5) and reinforcing the hole and backfilling the groove.
For the sewage main pipe that the buried depth is big, the pipe diameter is big, and the water yield is many to plug into, adopt the mode of newly-built open caisson in the actual construction more, its main construction order: (1) determining the elevation and the coordinate of the newly-built pipeline; (2) newly building a working well and a receiving well to a designed elevation; (3) pipe jacking construction, namely jacking the newly-built pipeline from the working well to a receiving well; (4) and the sewage guide and drainage device guides and discharges the upstream sewage of the current sewage pipe to the downstream to ensure that no water exists at the connection point. (5) The top pipe is communicated with the current pipe.
The prior art can realize the connection of a newly-built pipeline and a current pipeline, but because the open caisson is newly added, the construction period is long, and the cost is high. In addition, because a water suction pump is needed for drainage, the required sewage drainage quantity is huge during connection. Therefore, a connection guide row mode which has the advantages of simple process, convenient guide row, high work efficiency, small potential safety hazard, lower cost and small interference to the life of surrounding residents is urgently needed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: aiming at the problems existing in the prior art, the pipe-jacking connection guide row structure is provided to solve the problems of huge sewage guide row amount, high construction cost and long construction period in the existing pipe-jacking connection guide mode.
The utility model adopts the technical proposal that: the utility model provides a push pipe drainage guide structure of plugging into, sets up in the current situation well, and this current situation well has connect the current situation pipe of upper reaches and the current situation pipe of low reaches, its characterized in that: the device is provided with a newly-built guide exhaust pipe, one end of the newly-built guide exhaust pipe is inserted into an upstream current pipe, the other end of the newly-built guide exhaust pipe is inserted into a downstream current pipe, the upstream current pipe and the downstream current pipe are communicated, and a newly-built plugging structure is adopted to plug a gap between the newly-built guide exhaust pipe and the upstream current pipe and the downstream current pipe;
the newly-built guide exhaust pipe is divided into a plurality of sections of guide exhaust pipe sections, the length of each section of guide exhaust pipe section is smaller than the inner diameter of the existing well, two adjacent sections of guide exhaust pipe sections are connected through a hinge piece, and a flange used for being connected with the other section of guide exhaust pipe section is arranged at the hinged end of each guide exhaust pipe section.
When the pipe diameter of the current pipe is DN2200, the pipe diameter of the newly-built guide pipe is DN 1000.
A pipe jacking connection method is used for connecting a pipe jacking to a current well, and is characterized in that:
constructing a newly-built pipe jacking working well, and reserving holes at corresponding positions on the working well;
jacking the jacking pipe to the current well through a hole on the newly-built jacking pipe working well;
before the jacking pipe is jacked to the current well, arranging the jacking pipe connection guide row structure in the current well;
and continuing jacking the jacking pipe to the existing well, taking out the pipe jacking machine head after jacking, and taking out the newly-built guide and discharge pipe and the newly-built plugging structure, so that the communication between a newly-built pipeline formed by the jacking pipe and the existing pipe network system is realized.
Set up in the present situation well the push pipe guide gang structure of plugging into includes:
the newly-built guide exhaust pipe is arranged into a bending state convenient for entering the existing well through a hinge piece on the newly-built guide exhaust pipe;
hoisting the bent newly-built guide discharge pipe into the existing well;
two ends of the newly built guide exhaust pipe respectively correspond to the current pipes at the upper and lower reaches;
the newly-built guide exhaust pipe is gradually changed from a bending state to a straight state through a hinge piece, and two ends of the newly-built guide exhaust pipe are respectively inserted into the current pipes at the upper and lower streams; (the depth of insertion should be greater than 1m)
The newly-built guide exhaust pipe is fixed through a flange on the newly-built guide exhaust pipe in a straight state;
and a newly-built plugging structure is adopted to plug the gap between the newly-built guide exhaust pipe and the upstream and downstream existing pipes.
And the bottom of the newly-built pipe jacking working well is protected by riprap.
The newly-built pipe jacking working well main body is prefabricated by waterproof concrete, the concrete grade is C30, and the impermeability grade is P6.
Newly-built push pipe working well adopts the interior excavation of well to sink, reachs the design elevation after, pours the reinforced concrete bottom plate, adopts under water not disperse concrete, and its slump is 180mm, and the continuous even pouring is gone up in the whole basal area of bottom sealing concrete open caisson, and the pipe insert concrete degree of depth is about 0.5m when pouring, reaches the design strength after, takes the bottom infiltration out in the well to find the bottom quality, carry out the leaking stoppage processing to the percolating water position.
The main body of the newly-built pipe jacking working well is cast in situ by a reverse construction method, namely, a first section of soil pit is excavated, a reinforcing steel bar is arranged on the inner wall to form a template, concrete is poured, concrete curing is carried out after pouring is finished, the template is finally removed to form a retaining wall, and accordingly, the reinforced concrete bottom sealing is carried out after the last section of retaining wall is finished and the design elevation is reached, so that the newly-built pipe jacking working well is formed.
If the underground water level is high, performing high-pressure jet grouting pile construction on the periphery of the newly-built pipe-jacking working well to form a water stop wall on the outer wall of the well, wherein the bottom of the pile is more than 1m above the bottom of the open caisson, and the top of the pile is about 1m above the top of the silt layer; when the geological condition is better, the high-pressure jet grouting pile can be omitted.
Rigid waterproof sleeves are designed at the openings of the newly-built pipe jacking working well and the current well through which the jacking pipes pass.
The utility model has the advantages that: this is novel through set up newly-built row pipe intercommunication current situation pipe on the well, the low reaches in the current situation well, need not the suction pump and carries out the sewage leading row of current situation pipe, can realize the upstream and downstream leading row of sewage, ensures current situation sewage system's current situation operation, does not influence simultaneously yet and plans the construction of plugging into of building pipeline and current situation pipe network system, reduction leading row construction cost that can be very big, can reduce the influence to the surrounding environment again.
The utility model discloses in newly-built calandria falls into a plurality of sections calandria sections, link to each other through the articulated elements between the calandria section, thereby can be when newly-built calandria entering current situation well of hoist and mount, make newly-built calandria be in the state of buckling through the articulated elements, with the size that adapts to the current situation well, and can be newly-built the current situation pipe both ends correspond, stretch gradually behind the current situation pipe in low reaches, the current situation pipe is stretched into at both ends, stretch through flange fixed connection between calandria section and the calandria section after stretching. The utility model discloses simplify the installation procedure of newly-built guide row pipe, shorten installation time.
The utility model discloses overall process is simple, the leading bar is convenient, the work efficiency is high, the potential safety hazard is little, with low costs, disturb for a short time to resident's life on every side, and the leading bar construction of plugging into of newly-built pipeline and current situation pipe network system has the significance.
Drawings
Fig. 1 is a schematic plan view of an embodiment.
Fig. 2 is a schematic sectional view taken along line a-a of fig. 1.
Fig. 3 is a schematic sectional view taken along line B-B of fig. 1.
In the figure: 1. jacking pipes; 2. climbing a ladder; 3. a well cover; 4. newly building a pipe jacking working well; 5. a rigid waterproof sleeve; 6. a live well; 7. a status quo pipe; 8. newly building a plugging structure; 9. newly building a guide exhaust pipe; 10. throwing stones to protect the bottom; 11. a flange; 12. a hinge member.
Detailed Description
The embodiment is a pipe jacking connection method, which comprises the following steps:
before the newly-built pipe-jacking working well is constructed, underground pipelines need to be detected in detail, including the elevation and the coordinates of the pipelines at the present situation, particularly the peripheral pipelines of the newly-built pipe-jacking working well. During the sinking process, the nearby pipelines need to be properly protected to prevent damage, and the whole process is monitored.
Before the newly-built pipe-jacking working well is constructed, the geological conditions of the proposed pipe jacking and the periphery of the newly-built pipe-jacking working well are analyzed, and the bottom of the newly-built pipe-jacking working well is processed by adopting riprap bottom protection.
And carrying out foundation pit enclosure on the periphery of the newly-built pipe jacking working well, and arranging a drainage ditch of 0.5m by 0.5m at a position 2m outside the foundation pit, wherein the drainage ditch is mainly used for reducing water and soil loss.
When the newly-built pipe-jacking working well is constructed, excavated earthwork is timely transported away from an orifice and cannot be stacked around the orifice, and the safety of a well wall cannot be influenced by vehicles for transporting abandoned soil. The newly-built pipe jacking working well main body is prefabricated by waterproof concrete, the concrete grade is C30, and the impervious grade is P6. Holes are reserved according to the designed pipeline elevation in the manufacturing process, and a rigid waterproof sleeve is installed.
And jacking the jacking pipe to the current well through the hole on the newly-built jacking pipe working well.
The pipe jacking is before pushing up to the present well, set up the pipe jacking and plugging into the leading bank structure in the present well, the pipe jacking is plugged into the leading bank structure and is had the newly-built calandria that the pipe diameter is DN1000, the material is the steel pipe, this newly-built calandria one end is inserted in the present pipe that the upstream pipe diameter is DN2200, the other end is inserted in the present pipe that the downstream pipe diameter is DN2200, communicate upstream and downstream present pipe, and adopt newly-built shutoff structure shutoff in the newly-built calandria and the clearance between upstream and downstream present pipe, the newly-built calandria of sewage accessible at this moment is managed by the upstream present pipe water conservancy diversion to.
After the newly-built guide exhaust pipe is installed, a static cutting technology combining a diamond rope saw and a diamond water drill is adopted to cut the side wall of the existing well, the height of the cut is consistent with that of a pipeline and is about 1.1 times of that of a pipe jacking machine head, and a rigid waterproof sleeve is installed after the cut is completed.
And (4) continuing jacking the jacking pipe to the existing well, taking out the pipe jacking machine head after jacking, and taking out the newly-built guide and discharge pipe and the newly-built plugging structure, so that the communication between a newly-built pipeline formed by the jacking pipe and the existing pipe network system is realized.
The method for setting the pipe jacking connection guide row structure in the embodiment comprises the following steps:
the newly-built guide exhaust pipe is arranged into a bending state convenient for entering the existing well through a hinge piece on the newly-built guide exhaust pipe;
hoisting the bent newly-built guide discharge pipe into the existing well;
two ends of the newly built guide exhaust pipe respectively correspond to the current pipes at the upper and lower reaches;
the newly-built guide exhaust pipe is gradually changed from a bending state to a straight state through a hinge piece, and two ends of the newly-built guide exhaust pipe are respectively inserted into the current pipes at the upper and lower streams;
the newly-built guide exhaust pipe is fixed through a flange on the newly-built guide exhaust pipe in a straight state;
and a newly-built plugging structure is adopted to plug the gap between the newly-built guide exhaust pipe and the upstream and downstream existing pipes.
In the embodiment, the newly built pipe jacking working well adopts the mode that earth is dug in the well and sinks, after the working well reaches the designed elevation, a reinforced concrete bottom plate is poured, underwater undispersed concrete is adopted, the slump degree is 180mm, the whole bottom area of the bottom sealing concrete open caisson is continuously and uniformly poured, a guide pipe is inserted into the concrete to the depth of about 0.5m during pouring, after the designed strength is reached, the bottom of the well is drawn out for water seepage, the quality of the bottom sealing is checked, and the water seepage position is subjected to plugging treatment.
In the embodiment, the newly-built pipe-jacking working well and the existing well are provided with the crawling ladder which is made of plastic steel, the installation is that the stepping center line is radially exposed for 100mm, the first step is 220mm away from the top surface of the well lid, and the rest distances are 360mm until the bottom of the well. The newly-built jacking pipe working well and the top of the existing well adopt a phi 700 and D400 type ball-milling cast iron well cover, and the elevation of the well cover is flush with the elevation of the ground.
In other embodiments, due to the complexity of underground pipelines, the open caisson cannot be directly sunk, the main body of the newly-built pipe-jacking working well is cast in place by a reverse method, namely, a first soil pit is excavated, a reinforcing steel bar setting template is installed on the inner wall, concrete is poured, concrete curing is carried out after the pouring is finished, the template is removed to form a retaining wall, and accordingly, the reinforced concrete bottom sealing is carried out after the last retaining wall is finished and the designed elevation is reached, so that the newly-built pipe-jacking working well is formed.
In other embodiments, if the underground water level is high, high-pressure jet grouting pile construction needs to be performed around the newly-built pipe-jacking working well to form a water stop wall of the outer wall of the well, the bottom of the pile is more than 1m of the bottom of the open caisson, and the top of the pile is about 1m of the top of the silt layer.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It is apparent that the present invention is not limited to the details of the above exemplary embodiments, and it is understood that those skilled in the art can make many modifications and variations according to the inventive concept without inventive step without departing from the spirit or essential characteristics of the present invention.
Claims (2)
1. The utility model provides a push pipe drainage guide structure of plugging into, sets up in the current situation well, and this current situation well has connect the current situation pipe of upper reaches and the current situation pipe of low reaches, its characterized in that: the device is provided with a newly-built guide exhaust pipe, one end of the newly-built guide exhaust pipe is inserted into an upstream current pipe, the other end of the newly-built guide exhaust pipe is inserted into a downstream current pipe, the upstream current pipe and the downstream current pipe are communicated, and a newly-built plugging structure is adopted to plug a gap between the newly-built guide exhaust pipe and the upstream current pipe and the downstream current pipe;
the newly-built guide exhaust pipe is divided into a plurality of sections of guide exhaust pipe sections, the length of each section of guide exhaust pipe section is smaller than the inner diameter of the existing well, two adjacent sections of guide exhaust pipe sections are connected through a hinge piece, and a flange used for being connected with the other section of guide exhaust pipe section is arranged at the hinged end of each guide exhaust pipe section.
2. The pipe jacking docking guide row structure of claim 1, wherein: when the pipe diameter of the current pipe is DN2200, the pipe diameter of the newly-built guide pipe is DN 1000.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021947741.8U CN212336250U (en) | 2020-09-08 | 2020-09-08 | Pipe jacking connection guide row structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021947741.8U CN212336250U (en) | 2020-09-08 | 2020-09-08 | Pipe jacking connection guide row structure |
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| CN212336250U true CN212336250U (en) | 2021-01-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090951A (en) * | 2021-02-23 | 2021-07-09 | 广东乾晖生物科技有限公司 | Pipeline flow control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090951A (en) * | 2021-02-23 | 2021-07-09 | 广东乾晖生物科技有限公司 | Pipeline flow control method |
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