CN119021707B - A complete set of equipment and construction method for updating the original well of small-diameter rainwater and sewage pipelines - Google Patents
A complete set of equipment and construction method for updating the original well of small-diameter rainwater and sewage pipelinesInfo
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- CN119021707B CN119021707B CN202411016477.9A CN202411016477A CN119021707B CN 119021707 B CN119021707 B CN 119021707B CN 202411016477 A CN202411016477 A CN 202411016477A CN 119021707 B CN119021707 B CN 119021707B
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- assembly
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- 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
- E21D9/1093—Devices for supporting, advancing or orientating the machine or the tool-carrier
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses complete equipment of a small-caliber rain and sewage pipeline original well updating drilling machine and a construction method, which belong to the technical field of rain and sewage pipeline in-situ updating construction, and comprise a miniature top pulling drilling machine, wherein the miniature top pulling drilling machine comprises a base assembly, a bracket assembly, a power assembly and a guide drill rod, the base assembly is horizontally arranged, the bracket assembly is connected to the base assembly, the power assembly is arranged on the bracket assembly, and the guide drill rod is connected to the power assembly; the base assembly is provided with four side fixing seat assemblies which are vertically arranged, the front part of the guide drill rod is provided with a detachable guide drill bit, and the front part of the guide drill bit is provided with a pipeline updating device. The invention can enter a smaller working well for construction, solves the problem that common construction equipment cannot perform rotary cutting and crushing construction in the original working well in construction, ensures that the replacement of a new pipe for an underground old pipe meets the design requirement, ensures the smoothness of the pipe construction, and greatly reduces the labor cost during construction.
Description
Technical Field
The invention belongs to the technical field of in-situ updating construction of rain and sewage pipelines, and particularly relates to complete equipment of a small-caliber rain and sewage pipeline original well updating drilling machine and a construction method.
Background
The underground pipe network is an important component of urban infrastructure, along with the high-speed development of economy in China, the urban process is accelerated, the urban scale is gradually enlarged, and a huge and complex municipal drainage pipe network is taken as an essential component of modern cities and takes over important tasks of the transmission and transportation of rain and sewage of the whole city.
In daily construction and operation maintenance of municipal pipe network, municipal pipe is constructed and updated in the past by commonly adopting a mode of re-burying the pipe after excavation, so that the phenomenon of opening the hearth and breaking the belly of the municipal road is caused to happen frequently, and urban traffic and life of surrounding residents are seriously influenced. Along with the progress of urban underground pipeline is complicated, urban road's load is more and more serious for drainage pipe has structural defects such as fracture, deformation, stagger, dislocation, seriously influences the structural safety of pipeline, leads to the occurrence of harm such as cavity, road surface collapse to appear in pipeline weak department, if not repairing for a long time, the earth in pipeline cavity department is lost easily, leads to the occurrence of potential safety hazards such as ground subsidence, fracture and suddenly collapse, lightly then pollutes groundwater, seriously influences pipeline water passing ability, and heavily then leads to sewage to overflow from the working well and influence urban appearance and surrounding environment, cause waterlogging in the period of storm, even traffic paralysis.
Along with the promotion of the urban process and the popularization of municipal pipe networks, the open cut construction difficulty of the pipeline is increased, and greater challenges are brought to construction. Finding out the quick and effective construction equipment and construction technology is the key for solving the problems. For in-situ replacement construction of small-caliber rain and sewage pipelines with diameter less than 500mm, a new pipeline needs to be replaced under the condition of not damaging an original working well, and the construction is generally carried out by adopting the following methods at present:
1. Non-excavation sleeve steel ring repairing process
① The non-excavation sleeve steel ring repairing process is little affected by environment, the original working well is adopted, only corresponding stacking materials and equipment positions are needed to be sealed, DN400 pipelines are repaired by taking manual well descending to excavate the surrounding earthwork of the original old pipelines, the steel rings of DN800 are sleeved, one section of steel ring is jacked in, the surrounding pipelines are affected to a certain extent, and potential safety hazards exist in manual excavation.
② The non-excavation sleeve steel ring repairing process has no pavement excavation, no influence on the appearance of the pavement, and long construction period is required for repairing the non-excavation sleeve steel ring, and in the example of 100 meters, the non-excavation sleeve steel ring repairing process is manually excavated, the operation space is limited, and the construction period is 60 days.
③ The non-excavation sleeve steel ring repairing process needs to be carried out by chemically grouting soil body for curing and then carrying out DN800 steel ring sheath, laying DN400 double-wall corrugated pipes and filling gaps, and finally carrying out CIPP ultraviolet curing by a pull-in method, so that the engineering cost is high.
2. Short pipe lining method
① The short pipe lining method repairing process is little affected by environment, the original working well is adopted, only corresponding stacking materials and equipment positions are needed to be closed, a DN400 pipeline is repaired by taking manual descending as an example, a pushing device is arranged in the well to push the pipeline with small pipe diameter, the diameter of the short pipe is generally reduced by one step compared with that of the original pipeline, the service life is similar to that of the original pipeline, but the section loss is larger, sundries are easy to deposit at the joint, and the use is influenced by daily accumulation and moon.
② The short pipe lining method is used for repairing the non-pavement excavation, the appearance of the pavement is not influenced, and a short pipe lining method is required to be repaired in a short construction period.
③ The short pipe lining method is to cure the chemical grouting soil body, detect dredging the pipeline, lay HDPE pipe with small pipe diameter one, and fill the gap between the new pipeline and the old pipeline with cement slurry.
3. Drawing pipe method for horizontal directional drilling machine
① The process of pulling and replacing the new pipe by the horizontal directional drilling machine has a certain influence on the environment, a working pit and corresponding stacking material space are required to be dug, and the process has a great influence on road traffic.
② The drilling hole of the deflecting section needs grouting filling. In terms of construction period, the non-excavation repair needs a shorter construction period.
③ A non-excavation in-situ same-pipe diameter replacement new pipe repairing process comprises pipeline detection dredging and has common engineering cost.
4. Broken pipe method
The pipe renewing technology is to cut the original pipe from inside by the pipe breaking equipment, expand the pipe by the expansion head, squeeze the broken pieces of the original pipe into the surrounding soil to form pipe holes, and synchronously pull in the new pipe.
The process only needs to excavate the working face locally, has small traffic influence and high construction speed. The trouble of inconvenient transportation and the like caused by municipal construction is reduced, and the travel influence on nearby residents is reduced while the municipal construction is completed quickly, but the following defects exist:
① The construction success rate is lower, generally about 50%, and once the construction fails, remedial measures in a skylight opening mode are needed, so that the influence on traffic and surrounding environment is larger;
② Vibrations generated during pipe cracking may affect peripheral facilities;
③ Swelling soil may cause difficulty in construction, road arching, and the like.
Therefore, the complete equipment and the construction method for the small-caliber rain and sewage pipeline original well updating drilling machine are required to be provided for use in daily construction, operation and maintenance of a subsurface pipe network.
Disclosure of Invention
The embodiment of the invention provides complete equipment and a construction method for a small-caliber rain and sewage pipeline original well updating drilling machine, which are used for solving the problems in the prior art.
The embodiment of the invention adopts the following technical scheme that the small-caliber rain and sewage pipeline original well updating drilling machine complete equipment comprises a miniature top pulling drilling machine, wherein the miniature top pulling drilling machine comprises a base assembly, a bracket assembly, a power assembly and a guide drill rod,
The base assembly is horizontally arranged, the bracket assembly is connected to the base assembly, the power assembly is connected to the bracket assembly, the bracket assembly can drive the position of the power assembly to horizontally move, the guide drill rod is connected to the power assembly, and the power assembly drives the guide drill rod to rotate;
four vertically arranged side fixing seat assemblies are arranged on the base assembly;
the front part of the guiding drill rod is provided with a detachable guiding drill bit, and the front part of the guiding drill bit is provided with a pipeline updating device.
Further, the bracket assembly comprises two track shafts detachably arranged on the base assembly and a push-pull oil cylinder arranged in the center of the base assembly;
The two rail shafts are provided with brackets in sliding connection, and the telescopic ends of the push-pull oil cylinders are connected with the brackets;
the bracket is provided with a detachable connecting seat, the connecting seat is provided with a pin shaft, and the power assembly is fixed on the connecting seat through the pin shaft;
the base assembly is provided with a front-back tightening screw rod.
Further, the power assembly comprises a gear box, a power head, two front end motors and two rear end motors, wherein the two front end motors and the two rear end motors are symmetrically arranged on the gear box;
the guiding drill rod is arranged on the power head and driven to rotate by the two front-end motors and the two rear-end motors.
Further, the gear box is also provided with a rotary control valve, a push-pull control valve, a double-speed valve assembly and a pressure reducing valve assembly which are connected with hydraulic pipes of the front motor and the rear motor.
Further, a water shaft assembly is arranged on the other side of the gear box, which is positioned on the guiding drill rod.
Further, the pipeline updating device comprises an eight-direction sleeve connecting rod, a composite rotary-cut crushing reamer, a female buckle pulling box, a concave-convex shaft, a pressing plate and a tubing cylinder;
The eight-direction sleeve connecting rod is connected with the pilot bit, and the composite rotary-cut crushing reamer is connected with the eight-direction sleeve connecting rod;
The combined rotary-cut crushing reamer is provided with a transfer case and a pipe pulling head, and a pull head on the pipe pulling head is connected with a box of the female buckle;
The female buckle pulling box is connected with the concave-convex shaft, and the tubing oil cylinder is connected to the pressing plate.
Further, the left and right tightening screws are arranged on the side fixing seat assembly.
The construction method of the complete equipment of the small-caliber rain and sewage pipeline original well updating drilling machine comprises the following steps:
s1, widening a working well, namely widening the bottom of the working well as the working well to 1200mm in diameter and reinforcing;
S2, installing and adjusting the base assembly, hanging the base assembly and the bracket connecting piece into a working well, adjusting elevation, direction and gradient of the base assembly and the bracket connecting piece according to original pipeline track lines, and fixing the base assembly by tightly pushing screw rods back and forth and fixing the base assembly and the bracket connecting piece;
S3, installing the side fixing seat assemblies, hanging the four side fixing seat assemblies into a working well, connecting the side fixing seat assemblies with the base assembly by bolts, locking and fixing, rotating a screw on the side fixing seat assembly, and further fixing the base assembly and the like;
S4, installing the power head assembly, hanging the power head assembly containing the rear-end motor into a working well, connecting the power head assembly with a bracket assembly by a pin shaft, and locking and fixing by a round nut;
S5, installing a front-end motor, hanging the front-end motor into a working well, and loading the front-end motor into a power head assembly;
s6, connecting a hydraulic pipe between the motor and the double-speed valve group assembly, and connecting a hydraulic pipe between the miniature top pulling drilling machine and the hydraulic station and a water pipe;
S7, checking whether all parts of the miniature top pulling drilling machine are installed, whether all hydraulic pipes are connected, and whether the whole machine is well fixed;
s8, starting the hydraulic station after confirming that the error is avoided, and performing trial operation of the miniature top pulling drilling machine;
S9, installing a guide drill rod and a guide drill bit, and operating a rotary control valve and a push-pull control valve of the miniature top pulling drilling machine to enable the guide drill bit and the guide drill rod to advance along the track line of the old pipeline towards the receiving well;
s10, after a pilot bit and a pilot drill rod reach a receiving well, detaching the pilot bit, respectively installing an octagon sleeve connecting rod and a composite rotary cutting and crushing reamer, and operating a rotary control valve and a push-pull control valve of a miniature top pulling drilling machine to enable the composite rotary cutting and crushing reamer to tunnel and rotary cut and crush an old pipeline along the track line of the old pipeline in the direction of the working well;
s11, after the reamer reaches the edge of the receiving well, installing a box, a new pipe and a concave-convex shaft at one end of a pipe pulling head on the composite rotary-cut crushing reamer, and pressing the new pipe into a positioning ring on the pipe pulling head by using a pipe loading cylinder and a pressing plate;
s12, operating a rotary control valve and a push-pull control valve of the miniature top pulling drilling machine, so that the composite rotary-cut crushing reamer digs into the direction of the working well along the track line of the old pipeline while rotary-cut crushing the old pipeline, and simultaneously, pulling the new pipeline into the direction of the working well;
s13, after finishing replacement construction of a new pipeline, unloading a tubing cylinder and a pressing plate, loading a new pipeline and a concave-convex shaft, pressing the new pipeline into a previous new pipeline by using the tubing cylinder and the pressing plate, and operating a rotary control valve and a push-pull control valve of a miniature top-pulling drilling machine to enable the composite rotary-cut crushing reamer to pull in the new pipeline towards the working well while tunneling and rotary-cut crushing the old pipeline towards the working well along the track line of the old pipeline;
S14, repeating the step S11 until all old pipeline replacement construction is completed;
s15, removing equipment withdraw after replacement of the old pipeline is completed;
S16, cleaning the pipeline and detecting the pipeline.
The above at least one technical scheme adopted by the embodiment of the invention can achieve the following beneficial effects:
The miniature top pulling drilling machine is compact in structural arrangement, the base assembly, the bracket assembly, the power assembly and the guide drill rod are all independent components and are assembled into a whole in a detachable mode to enter a smaller working well for working, the bracket assembly moves back and forth through the push-pull oil cylinder, a driving device is omitted, the arrangement space of the drilling machine is saved, the problem that common construction equipment cannot conduct rotary cutting and crushing construction in the original working well in construction can be solved, the replacement of a new pipe of an underground old pipe is guaranteed to meet design requirements, meanwhile, the smoothness of pipe construction is guaranteed, and labor cost in construction is greatly reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic diagram of a micro top-pulling drilling machine according to the present invention;
FIG. 2 is a schematic diagram of a micro top-pulling drilling machine according to the present invention;
FIG. 3 is an exploded view of the miniature roof pull drilling machine of the present invention;
FIG. 4 is a schematic view of the structure of the base assembly and bracket assembly of the present invention;
FIG. 5 is a schematic illustration of the construction of the present invention;
FIGS. 6 to 9 are schematic views showing steps of the construction method according to the present invention;
Reference numerals
The hydraulic system comprises a base assembly 1, a bracket assembly 2, a track shaft 21, a push-pull oil cylinder 22, a bracket 23, a connecting seat 24, a front-back jacking screw 25, a pin shaft 26, a power assembly 3, a front-end motor 31, a rear-end motor 32, a gear box 33, a power head 34, a hydraulic station 35, a guide drill rod 4, a guide drill bit 41, a water shaft assembly 5, an eight-direction sleeve connecting rod 6, a composite rotary-cut crushing reamer 7, a box 8, a concave-convex shaft 9, a pressing plate 10, a tubing oil cylinder 11, a small hydraulic station 111, a side fixing seat assembly 12, a receiving well 13, a working well 14, a left-right jacking screw 15, a rotary operating valve 16, a push-pull operating valve 17, a double-speed valve group assembly 18, a new pipeline 19 and an old pipeline 20.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments of the present invention and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The following describes in detail the technical solutions provided by the embodiments of the present invention with reference to the accompanying drawings.
Referring to fig. 1 to 9, the embodiment of the invention provides a small-caliber rain and sewage pipeline original well updating drilling machine set, which comprises a miniature top pulling drilling machine, wherein the miniature top pulling drilling machine comprises a base assembly 1, a bracket assembly 2, a power assembly 3 and a guiding drill rod 4,
The base assembly 1 is horizontally arranged, the bracket assembly 2 is connected to the base assembly 1, the power assembly 3 is arranged on the bracket assembly 2, the bracket assembly 2 can drive the position of the power assembly 3 to horizontally move, the guide drill rod 4 is connected to the power assembly 3, and the power assembly 3 drives the guide drill rod 4 to rotate;
The side fixing seat assembly 12 is provided with a connecting angle plate, a screw hole is formed in the connecting angle plate, the side fixing seat assembly 12 is provided with a screw hole, the side fixing seat assembly 12 is fastened on the base assembly 1 through bolts, the side fixing seat assembly 12 is provided with a left tightening screw 15 and a right tightening screw 15, and the left tightening screw 15 limits the drilling machine to move in the left-right direction;
The front part of the guiding drill rod 4 is provided with a detachable guiding drill bit 41, and the front part of the guiding drill bit 41 is provided with a pipeline updating device.
In use, a pipeline between the receiving well 13 (original municipal pipeline work well) and the working well 14 (original municipal pipeline work well) is updated (see fig. 5).
The base assembly 1, the bracket assembly 2, the power assembly 3 and the guide drill rod 4 of the miniature top pulling drilling machine are all independent components, are assembled into a whole in a detachable mode and can enter a smaller working well 14 for working, and the miniature top pulling drilling machine can solve the problem that common construction equipment cannot enter the original working well 14 for rotary cutting and crushing construction in construction, ensure that an underground old pipeline 20 is replaced by a new pipeline to meet the design requirement, ensure the smoothness of pipeline construction, and greatly reduce the labor cost in construction.
Preferably, the bracket assembly 2 comprises two track shafts 21 detachably mounted on the base assembly 1 and a push-pull oil cylinder 22 arranged in the center of the base assembly 1, wherein the two track shafts 21 are provided with brackets 23 in sliding connection, the telescopic ends of the push-pull oil cylinder 22 are connected with the brackets 23, the brackets 23 are provided with detachable connecting seats 24, the connecting seats 24 are provided with pin shafts 26, the power assembly 3 is fixed on the connecting seats 24 through the pin shafts 26, and the base assembly 1 is provided with front and rear tightening screws 25.
In the use process, the push-pull oil cylinder 22 works to drive the bracket 23 to horizontally move on the two track shafts 21, and the bracket 23 drives the pilot bit 41 on the pilot drill rod 4 to rotate in the moving process, so that the composite rotary-cut crushing reamer 7 is driven to rotate to crush the old pipeline 20.
Preferably, the power assembly 3 comprises a gear box 33, a power head 34, two front end motors 31 and two rear end motors 32 symmetrically arranged on the gear box 33, the guide drill rod 4 is arranged on the power head 34, the guide drill rod 4 is driven to rotate through the two front end motors 31 and the two rear end motors 32, and the guide drill rod 4 is driven to rotate by the simultaneous operation of the two front end motors 31 and the two rear end motors 32, so that power output is provided for the guide drill rod 4.
Preferably, the gear box 33 is further provided with a rotary control valve 16, a push-pull control valve 17, a double-speed valve assembly 18 and a pressure reducing valve assembly which are connected with hydraulic pipes of the front motor 31 and the rear motor 32.
Preferably, a water shaft assembly 5 is arranged on the other side of the gear box 33, which is positioned on the guiding drill rod 4, the water shaft assembly 5 is connected with a slurry pump outlet pipe, and slurry passes through the water shaft assembly during construction.
Preferably, the pipeline updating device comprises an eight-direction sleeve connecting rod 6, a composite rotary-cut crushing reamer 7, a box 8, a concave-convex shaft 9, a pressing plate 10 and a tubing cylinder 11, wherein the eight-direction sleeve connecting rod 6 is connected with a pilot bit 41, the composite rotary-cut crushing reamer 7 is connected with the eight-direction sleeve connecting rod 6, a transfer case and a tube drawing head are arranged on the composite rotary-cut crushing reamer 7, a pull head on the tube drawing head is connected with the box 8, the box 8 is connected with the concave-convex shaft 9, and the tubing cylinder 11 is connected on the pressing plate 10. The tubing cylinder 11 is connected to a small hydraulic station 111.
The new pipeline 19 is installed on the pipeline positioning ring on the pipe pulling head, the new pipeline 19 is tightly pressed on the pipe pulling head through the pressing plate 10 and the pipe loading cylinder 11, and the old pipeline 20 is replaced while the new pipeline 19 is driven and reamed by the composite rotary-cut crushing reamer 7.
A construction method of a complete set of equipment for updating a drilling machine of an original well of a small-caliber rain and sewage pipeline comprises the following steps of (referring to figures 6 to 9)
Widening the bottom of the working well 14 as the working well 14 to 1200mm in diameter and reinforcing;
S2, installing and adjusting the base assembly, hanging the connecting piece of the base assembly 1 and the bracket 23 into the working well 14, adjusting the elevation, the direction and the gradient of the connecting piece of the base assembly 1 and the bracket assembly 2 according to the track line of the original pipeline 20, and adjusting the front and back jacking screw rods 25 to fix the base assembly 1 and the connecting piece of the base assembly 1 and the bracket assembly 2;
S3, installing the side fixing seat assemblies, hanging the four side fixing seat assemblies 12 into a working well 14, connecting the side fixing seat assemblies 12 with the base assembly 1 by bolts, locking and fixing, rotating screws on the side fixing seat assemblies 12, and further fixing the base assembly 1 and the like;
S4, installing a power head assembly, hanging the power head 34 assembly containing the rear end motor 32 into the working well 14, connecting the power head 34 assembly with the bracket assembly 2 by using the pin shaft 26 and locking and fixing by using a round nut;
S5, installing the front end motor 31, hanging the front end motor 31 into the working well 14, and loading the front end motor 31 into a power head 34 assembly;
S6, connecting a hydraulic pipe between the motor and the double-speed valve group assembly 18, and connecting a hydraulic pipe between the miniature pull-top drilling machine and the hydraulic station 35 and a hydraulic pipe between the miniature pull-top drilling machine and the hydraulic station 35;
S7, checking whether all parts of the miniature top pulling drilling machine are installed, whether all hydraulic pipes are connected, and whether the whole machine is well fixed;
s8, starting the hydraulic station 35 after confirming that the error is avoided, and performing trial operation of the miniature top pulling drilling machine;
S9, installing a pilot drill rod 4 and a pilot drill bit 41, and operating a rotary control valve 16 and a push-pull control valve 17 of the miniature top pulling drilling machine to enable the pilot drill bit 41 and the pilot drill rod 4 to advance towards the receiving well 13 along the track line of the old pipeline 20;
S10, after a pilot bit 41 and a pilot drill rod 4 reach a receiving well 13, detaching the pilot bit 41, respectively installing an eight-direction sleeve connecting rod 6 and a composite rotary cutting and crushing reamer 7, and operating a rotary control valve 16 and a push-pull control valve 17 of a miniature top-pulling drilling machine to enable the composite rotary cutting and crushing reamer 7 to tunnel along the track line of an old pipeline 20 towards the direction of a working well 14 while rotary cutting and crushing the old pipeline 20;
S11, after the reamer reaches the edge of the receiving well 13, installing a box 8, a new pipeline 19 and a concave-convex shaft 9 at one end of a pipe pulling head on the composite rotary cutting and crushing reamer 7, and pressing the new pipeline 19 into a positioning ring on the pipe pulling head by using a pipe loading cylinder 11 and a pressing plate 10;
s12, operating a rotary control valve 16 and a push-pull control valve 17 of the miniature top pulling drilling machine to enable the composite rotary cutting and crushing reamer 7 to drive the old pipeline 20 along the track line of the old pipeline 20 towards the working well 14 while rotary cutting and crushing the old pipeline 20, and simultaneously pulling the new pipeline 19 into the working well 14;
S13, after the replacement construction of a new pipeline 19 is completed, a tubing oil cylinder 11 and a pressing plate 10 are disassembled, a new pipeline and a concave-convex shaft 9 are assembled, the tubing oil cylinder 11 and the pressing plate 10 are used for pressing the new pipeline 19 into the new pipeline 19 of the previous section, a rotary control valve 16 and a push-pull control valve 17 of a miniature top pulling drill are operated, so that the composite rotary cutting and crushing reamer 7 is driven along the track line of the old pipeline 20 towards the direction of the working well 14 while the old pipeline 20 is cut and crushed in a rotary cutting way, and simultaneously, the new pipeline 19 is pulled into the direction of the working well 14;
s14, repeating the step S11 until the replacement construction of all the old pipelines 20 is completed;
S15, after replacement of the old pipeline 20 is completed, dismantling equipment, and carrying out equipment withdraw;
S16, cleaning the pipeline and detecting the pipeline.
The foregoing is merely exemplary of the present invention and is not intended to limit the present invention. Various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are to be included in the scope of the claims of the present invention.
Claims (6)
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| CN202411016477.9A CN119021707B (en) | 2024-07-28 | 2024-07-28 | A complete set of equipment and construction method for updating the original well of small-diameter rainwater and sewage pipelines |
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| CN202411016477.9A CN119021707B (en) | 2024-07-28 | 2024-07-28 | A complete set of equipment and construction method for updating the original well of small-diameter rainwater and sewage pipelines |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107664038A (en) * | 2017-10-18 | 2018-02-06 | 安徽路鼎科技股份有限公司 | Bore top machine and thirdly step push bench process |
| CN109798069A (en) * | 2019-01-22 | 2019-05-24 | 福建亿钻机械有限公司 | Deep basal pit small-bore pipeline repairs complete set of equipments and construction method |
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| CN107975374B (en) * | 2017-11-24 | 2019-05-10 | 上海隧道工程有限公司 | The main jacking mechanism of pipe curtain subsurface excavation method jacking construction |
| KR102042743B1 (en) * | 2018-11-29 | 2019-11-08 | (주)몰크리켓 | Pipe bursting method |
| CN117536637B (en) * | 2023-12-07 | 2025-09-26 | 福建亿钻机械有限公司 | A multifunctional micro pipe jacking equipment set and construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107664038A (en) * | 2017-10-18 | 2018-02-06 | 安徽路鼎科技股份有限公司 | Bore top machine and thirdly step push bench process |
| CN109798069A (en) * | 2019-01-22 | 2019-05-24 | 福建亿钻机械有限公司 | Deep basal pit small-bore pipeline repairs complete set of equipments and construction method |
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