CN111156020B - Non-excavation maintenance equipment for sewer line and construction method thereof - Google Patents
Non-excavation maintenance equipment for sewer line and construction method thereof Download PDFInfo
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- CN111156020B CN111156020B CN202010006782.5A CN202010006782A CN111156020B CN 111156020 B CN111156020 B CN 111156020B CN 202010006782 A CN202010006782 A CN 202010006782A CN 111156020 B CN111156020 B CN 111156020B
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- 238000012423 maintenance Methods 0.000 title claims abstract description 41
- 238000010276 construction Methods 0.000 title claims abstract description 30
- 238000009412 basement excavation Methods 0.000 title claims abstract description 16
- 230000000694 effects Effects 0.000 claims abstract description 11
- 238000005553 drilling Methods 0.000 claims description 23
- 239000002893 slag Substances 0.000 claims description 10
- 239000011440 grout Substances 0.000 claims description 9
- 239000002002 slurry Substances 0.000 claims description 6
- 239000000523 sample Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000003818 cinder Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 244000208734 Pisonia aculeata Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229940092782 bentonite Drugs 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- ONCZQWJXONKSMM-UHFFFAOYSA-N dialuminum;disodium;oxygen(2-);silicon(4+);hydrate Chemical compound O.[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Na+].[Na+].[Al+3].[Al+3].[Si+4].[Si+4].[Si+4].[Si+4] ONCZQWJXONKSMM-UHFFFAOYSA-N 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229940080314 sodium bentonite Drugs 0.000 description 1
- 229910000280 sodium bentonite Inorganic materials 0.000 description 1
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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
- E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/06—Methods of, or installations for, laying sewer pipes
-
- 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
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/124—Helical conveying means therefor
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to equipment for non-excavation maintenance of a sewer pipeline and a construction method thereof, and relates to the technical field of non-excavation pipeline construction. The invention has the effects of being suitable for maintaining and replacing the pipeline in a narrow road section and being more flexible in construction.
Description
Technical Field
The invention relates to the technical field of non-excavation pipeline construction, in particular to a device for non-excavation maintenance of a sewer pipeline and a construction method thereof.
Background
The trenchless pipeline installation technology, as the name implies, is to install and lay the pipelines, cables and wires of the engineering design in the required crossing section underground by using a special construction technology and special mechanical equipment under the condition of not influencing any traffic (roads, railways and streets) and facility operation (such as rivers, sewage pipelines and the like). However, when a pipeline buried under the ground is damaged due to aging, the damaged pipeline needs to be repaired or replaced.
In the prior art, a patent with an authorization publication number of CN102330868B discloses a non-excavation maintenance construction method for a sewer pipe, which sequentially comprises the following steps: a water leakage detection step of detecting whether water leakage occurs or not by filling water; if the water leakage amount is large, the water leakage is cut off by smearing the mixed liquid containing the bentonite on the maintenance part, and the damaged pipeline is subjected to non-excavation precise maintenance in the pipeline; a first maintenance liquid filling step of filling the first maintenance liquid into the interior of the pipe at a high pressure; a first maintenance liquid suction step of sucking the maintenance liquid remaining in the pipe and storing the maintenance liquid in a tank; filling the second maintenance liquid; a second maintenance liquid suction step of sucking the maintenance liquid remaining in the pipe and storing the maintenance liquid in the tank; cleaning the sewer pipeline, the sand well and the branch pipes in the middle of the pipeline; a residual liquid removing step of removing the residual maintenance liquid at the bottom of the pipeline; and the water leakage position is maintained in all directions by a non-excavation method.
The above prior art solutions have the following drawbacks: however, although the method of repairing the damaged portion of the pipe with the repair liquid can temporarily repair the damaged portion of the pipe, the damaged portion of the pipe is likely to be damaged again with the lapse of time and under the influence of the surrounding environment. And the overall strength of the pipeline will also deteriorate as the pipeline ages; when the pipeline is damaged again, the normal use of the pipeline can be ensured only by replacing a new pipeline; when the pipeline is repaired and replaced in a narrow road section, some large-scale drilling equipment is difficult to drive into a construction site, and further, when the damaged pipeline needs to be pulled out of a pit or a new pipeline needs to be installed again, inconvenience is brought to constructors.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the device for non-excavation maintenance of the sewer pipeline and the construction method thereof, and the device has the effects of being suitable for pipeline maintenance and replacement in narrow road sections and being more flexible in construction.
The above object of the present invention is achieved by the following technical solutions:
the non-excavation maintenance equipment for the sewer pipeline comprises a pipe laying machine, wherein a drilling seat, a pipe pulling seat used for pulling out a damaged pipeline and a guide seat used for guiding the pulled out damaged pipeline are arranged on the pipe laying machine; the drilling seat comprises a sleeve with a hollow interior, and the sleeve is installed on the pipe laying machine along the horizontal direction; a coaxial mounting plate is arranged in the sleeve, a coaxial first motor is mounted on the mounting plate, and an output shaft of the first motor is rotatably connected to the mounting plate; the front end of the sleeve is rotatably connected with a cutter head parallel to the mounting plate, and a central shaft of the cutter head is fixedly connected with an output shaft of the first motor; the tube drawing seat comprises a base, a second motor which is horizontally placed is installed in the base, and a coaxial first gear is fixedly installed on an output shaft of the second motor; a second gear symmetrical to the first gear is also rotatably connected in the base; an annular chain is tightly meshed between the first gear and the second gear; the upper end of the chain is fixedly connected with a first pressing seat, an air cylinder with an output shaft vertically upward is mounted on the first pressing seat, and a second pressing seat opposite to the first pressing seat is fixedly mounted on the output shaft of the air cylinder; and the side walls of the first pressure seat and the second pressure seat which are opposite to each other jointly form a yielding groove for the pipeline to pass through.
By adopting the technical scheme, when the damaged pipeline needs to be pulled out of the hole, the pipe laying machine is firstly placed into the working pit, and then the cylinder arranged on the first pressure seat is started to enable the cylinder to lift the second pressure seat upwards; then one end of the damaged pipeline penetrates into the yielding groove between the first pressing seat and the second pressing seat, and then the output shaft of the air cylinder contracts and compresses the damaged pipeline in the yielding groove; after the damaged pipeline is tightly pressed, the chain arranged in the base drives the first pressing seat to transmit backwards, and the damaged pipeline is gradually pulled out of the hole under the driving of the first pressing seat and the second pressing seat; when the first pressing seat moves to the tail end of the base, the output shaft of the air cylinder lifts the second pressing seat upwards, and then the first pressing seat returns to the front end of the base under the driving of the chain to start a new round of drawing work; the broken pipeline can be smoothly dragged out through continuous and cyclic drawing of the pipe drawing seat; the pulled out damaged pipeline is gradually conveyed to the upper part of the working pit under the guiding action of the guide seat; when a new pipeline needs to be laid, firstly, a receiving pit with the same depth as the working pit is formed in the other end of the path of the original pipeline, then, a drilling seat is aligned to the path direction of the original pipeline, and then, the new pipeline is fixedly installed at the tail end of the sleeve; starting a first motor to enable a cutter head to rotate, then enabling a sleeve to move along the path direction of the original pipeline, and removing silt on the original path through the cutter head at the front end of the sleeve when the sleeve moves; when the sleeve is drilled out from the receiving pit at the other end, the installation work of a new pipeline is completed; the pipe laying machine has various functions, is small and exquisite and flexible, and is convenient to carry; the pipeline maintenance and replacement device is suitable for pipeline maintenance and replacement in narrow road sections.
The invention is further configured to: a blanking cavity is formed between the mounting plate and the cutter head, and a discharge hole communicated with the blanking cavity is formed at the lower end of the mounting plate; a spiral conveyor is arranged in the sleeve and is positioned on one side of the mounting plate, which is far away from the cutter head; a feeding port of the spiral conveyor is communicated with a discharging hole; the other opening of the spiral conveyor is connected with a slag discharge pipe.
By adopting the technical scheme, when the cutter head moves forward, silt continuously enters the blanking cavity, and the silt cut by the cutter head can be temporarily stored through the blanking cavity, so that the adverse effect of the silt on the rotation of the cutter head is reduced, and the cutter head can rotate more smoothly; along with the continuous movement of the sleeve, silt finally flows out of a discharge hole at the lower end of the mounting plate; the silt flowing out of the discharge hole is gradually conveyed towards the rear end under the action of the bolt conveyor, and finally the silt is conveyed to the ground through the slag discharge pipe; and the sediment can be conveniently collected in a unified way through the slag discharge pipe.
The invention is further configured to: offer the grout mouth that runs through on the mounting panel, it has the grout pipe to insert through the grout mouth on the mounting panel, the opening of grout pipe is towards the blade disc.
By adopting the technical scheme, when the cutter head drills, slurry is poured into the surface of the drilled hole through the grouting pipe, so that the hole wall of the drilled hole can be protected, and the drilled hole and the cutter head can be lubricated; meanwhile, the collapse of the drilled hole can be prevented, and the drilled hole is more stable.
The invention is further configured to: the guide seat comprises a support frame arranged on the pipe laying machine, and the support frame is positioned behind the pipe pulling seat; the upper end of the supporting frame is hinged with a transverse plate, and the transverse plate rotates around the hinged position along the vertical direction; a slideway for inserting a pipeline is formed on one side of the support frame, which faces the abdicating groove, and the slideway is inclined upwards in a direction away from the abdicating groove; the transverse plate is provided with a through hole positioned above the slide way.
By adopting the technical scheme, after the damaged pipeline is pulled out by the pipe pulling seat, the damaged pipeline is inserted into the slide way, and the slide way is obliquely and obliquely arranged in an inclined manner along the direction far away from the abdicating groove; the damaged pipeline is continuously pulled out of the hole, and the damaged pipeline penetrates out of the upper through hole under the guidance of the slide way; the damaged pipeline can be ensured to smoothly extend out from the upper opening of the working pit through the slide way; the transverse plate which is hinged to the pipe body is fixed through the bolts, and the transverse plate is rotated to a proper angle so that the position of the through hole can be adjusted, and therefore the pipe body can be guided to different tough pipelines.
The invention is further configured to: the pipelayer comprises a base and a rotary table which is rotatably connected above the base; the drilling seat, the pull tube seat and the guide seat are arranged on the rotary table in a surrounding manner; and the pull pipe seat and the guide seat are oppositely arranged.
By adopting the technical scheme, when the drilling seat and the pull tube seat need to be switched, different functions can be switched by only rotating the rotary table; the construction is more convenient and rapid; and the pull pipe seat and the guide seat are oppositely arranged, so that the damaged pipeline can smoothly extend out of the working pit.
The invention is further configured to: the transverse plate is provided with a first through hole and a second through hole which penetrate through the transverse plate; the first through hole and the second through hole are close to one side of the drilling seat and are arranged along the length direction of the sleeve.
By adopting the technical scheme, the grouting pipe can be limited and fixed by penetrating the grouting pipe through the first through hole when the drilling seat is constructed, so that the grouting pipe is more stable when moving along with the sleeve, and the pulling force between the grouting pipe and the joint of the sleeve is reduced when moving; the same through spacing the fixing in the second through-hole of row's cinder pipe to can reduce the dragging between screw conveyer and the row's cinder pipe, further strengthen the fixed effect to row's cinder pipe, make its more stable firm.
The invention is further configured to: the improved cutter head is characterized in that a lifting lug is arranged on the outer side wall of the front end of the sleeve, the lifting lug is circumferentially arranged around the cutter head at intervals, and a traction pipe is arranged on the sleeve through the lifting lug.
By adopting the technical scheme, a constructor in the receiving pit inserts the traction pipe along the path of the original pipeline, and when one end of the traction pipe penetrates out of an original drilled hole to the working pit, one end of the traction pipe is fixedly arranged at the front end of the sleeve through the lifting lug; because the lug is circumference and encircles around the blade disc, when the constructor who is located the receiving pit carries out the pull-back with the traction tube, the axle center of traction tube can overlap with the axle center of blade disc, enables smooth the marcing of sleeve pipe under the effect of traction tube, guarantees the blade disc simultaneously and can follow the path drilling of traction tube, avoids the condition emergence of the route skew of marcing.
In summary, the invention includes at least one of the following beneficial technical effects:
when the maintenance and replacement of the pipeline are carried out on the road section which is difficult to drive in by large-scale drilling machine equipment, the pipe laying machine is firstly placed in an excavated working pit, and the damaged pipeline can be smoothly taken out from the original drilled hole through a pipe drawing seat on the pipe laying machine; when the damaged pipeline is continuously pulled out, the damaged pipeline can be gradually conveyed to the upper part of the working pit through the guiding of the guiding seat; when a new pipeline needs to be laid, firstly, a receiving pit with the same depth as a working pit is formed in the other end of the path of the original pipeline, then the positions of a drilling seat and a pipe drawing seat are subjected to intermodulation by rotating a turntable, a constructor in the receiving pit inserts a traction pipe along the path of the original pipeline, one end of the traction pipe is fixedly installed at the front end of a sleeve through a lifting lug, and then the new pipeline is fixed at the tail end of the sleeve; the traction pipe is pulled back, and the drilling seat not only realizes the back expansion of the original drilling path, but also realizes the traction installation work of a new pipeline; the pipe laying machine has various functions, is small and exquisite and flexible, and is convenient to carry; the pipeline maintenance and replacement device is suitable for pipeline maintenance and replacement in narrow road sections.
In addition, another purpose of the invention is to provide a construction method for repairing and replacing pipelines by using a pipelayer, which is realized by the following technical scheme:
s1, surveying the damaged pipeline by using a probe with a positioning system according to the site survey;
s2, after the position of the damaged pipeline is determined, respectively excavating a working pit and a receiving pit on two sides of the damaged pipeline; exposing two ends of the damaged pipeline from the corresponding working pit and the receiving pit respectively;
s3, hoisting the pipe laying machine into the working pit, limiting and fixing one end of the damaged pipeline through a abdicating groove arranged on the pipe drawing seat, and starting the pipe drawing seat to gradually draw out the damaged pipeline; the rotating speed of the first motor is controlled during pulling, so that the damaged pipeline is pulled out slowly at a constant speed;
s4, limiting the pulled damaged pipeline in a slide way on a guide seat, and gradually extending the damaged pipeline upwards from the working pit under the guide effect of the slide way;
s5, inserting the traction pipe from the receiving pit at the other end along the path of the original pipeline gradually towards the working pit by constructors; when one end of the traction pipe extends into the working pit, the traction pipe is fixedly arranged on a lifting lug at the front end of the sleeve;
s6, fixedly installing a new pipeline at one end of the sleeve pipe, which is far away from the traction pipe;
s7, enabling the cutter head at the front end of the sleeve to face the path direction of the original pipeline by rotating the turntable, and starting the first motor to drive the cutter head to rotate; the constructor in the receiving pit drives the sleeve to move forwards by dragging the traction pipe; when the sleeve moves forward, slurry is poured into the surface of the rotating hole through the grouting pipe, so that the ground is prevented from collapsing; during construction, the spiral conveyor is started to discharge redundant silt to the ground through the slag discharge pipe;
and S8, after the casing pipe passes out of the receiving pit, finally backfilling through the earth.
In summary, the invention includes at least one of the following beneficial technical effects:
when the pipeline maintenance and replacement are carried out on the road section which is difficult to drive in by large-scale drilling machine equipment, the construction method has small requirement on the surrounding environment and is convenient to construct; meanwhile, the influence on the surrounding road environment is small, the pipeline maintenance and replacement method is suitable for pipeline maintenance and replacement of narrow road sections, and construction is more flexible.
Drawings
FIG. 1 is a schematic view of the overall construction of the pipelayer of the present invention;
FIG. 2 is a schematic view of the overall structure of the pipelayer of the present invention highlighting the location of the drill bed;
FIG. 3 is a schematic sectional view showing a part of the structure of the inside of the casing pipe of the drill base in a highlighted manner in accordance with the present invention;
FIG. 4 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 5 is a schematic illustration showing a portion of the present invention highlighting the location of the guide shoe on the pipelayer;
FIG. 6 is a road construction explanatory view of the construction method of the present invention.
In the figure, 1, a pipe laying machine; 2. drilling a hole seat; 3. a tube drawing seat; 4. a guide seat; 5. a sleeve; 6. mounting a plate; 7. a first motor; 8. a cutter head; 9. a base; 10. a second motor; 11. a first gear; 12. a second gear; 13. a chain; 14. a first pressing base; 15. a cylinder; 16. a second pressing seat; 17. a yielding groove; 18. a blanking cavity; 19. a discharge hole; 20. a screw conveyor; 21. a slag discharge pipe; 22. grouting ports; 23. grouting pipes; 24. a support frame; 25. a transverse plate; 26. a slideway; 27. perforating; 28. a base; 29. a turntable; 30. a first through hole; 31. a second through hole; 32. lifting lugs; 33. a traction tube; 34. a probe; 35. a receiving pit; 36. a fixing plate; 37. and (7) working pits.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the non-excavation maintenance equipment for the sewer pipe disclosed by the invention comprises a pipelayer 1, wherein the pipelayer 1 comprises a circular base 28, and the upper end of the base 28 is rotatably connected with a horizontally placed turntable 29. The upper end of the rotary table 29 is sequentially provided with a drilling seat 2, a pipe drawing seat 3 for drawing out the damaged pipeline and a guide seat 4 for guiding the drawn-out damaged pipeline in a circumferential surrounding manner. The tube drawing seat 3 and the guide seat 4 are arranged oppositely.
As shown in fig. 2 and 3, the drilling seat 2 includes a hollow sleeve 5, and the sleeve 5 is detachably mounted on the upper end of the rotary table 29 along the horizontal direction. A coaxial mounting plate 6 is fixedly mounted in the sleeve 5, and the mounting plate 6 is vertically arranged. The front end of the sleeve 5 is rotatably connected with a cutter head 8 which is arranged in parallel with the mounting plate 6, and the center of the cutter head 8 is in a propeller shape formed by four inclined cutters. A blanking cavity 18 is formed between the mounting plate 6 and the cutter disc 8, and a first motor 7 with an output shaft inserted into the blanking cavity 18 is fixedly mounted at one end of the mounting plate 6 departing from the cutter disc 8. First motor 7 and mounting panel 6 coaxial setting, and the output shaft of first motor 7 rotates and connects on mounting panel 6. An output shaft of the first motor 7 is fixedly connected with a central shaft of the cutter head 8, and the first motor 7 is started to drive the cutter head 8 to rotate.
As shown in fig. 2 and 3, a through grouting opening 22 is formed at the upper end of the mounting plate 6, the grouting opening 22 is located right above the first motor 7, and the grouting opening 22 is communicated with the blanking cavity 18. A grouting pipe 23 is fixedly inserted into the mounting plate 6 through a grouting opening 22, and the opening of the grouting pipe 23 faces the cutter head 8 in front. The lower end of the mounting plate 6 is provided with a discharge hole 19 which is positioned right below the first motor 7, and the mounting plate 6 is penetrated through and communicated with the blanking cavity 18 by the discharge hole 19. Also mounted within the casing 5 is a screw conveyor 20, the screw conveyor 20 being located on the side of the mounting plate 6 facing away from the cutterhead 8. One end of the screw conveyor 20 is fixedly installed on the installation plate 6, and a feeding port of the screw conveyor 20 is communicated with the discharging hole 19. The other opening of the screw conveyor 20 is connected with a slag discharge pipe 21.
As shown in fig. 2 and 3, three lifting lugs 32 are fixedly mounted on the outer side wall of the front end of the sleeve 5, and the three lifting lugs 32 uniformly and circumferentially surround the cutter head 8. The front end of the sleeve 5 is provided with a traction tube 33 through a lifting lug 32, and three independent branches are formed at one end of the traction tube 33 facing the lifting lug 32 and are respectively hung on the corresponding lifting lugs 32.
As shown in fig. 1 and 4, the tube drawing base 3 includes a base 9 with a bottom fixedly mounted on the upper end of the turntable 29, a second motor 10 with an output shaft horizontally disposed is fixedly mounted in the base 9, a coaxial first gear 11 is fixedly mounted on the output shaft of the second motor 10, and a second gear 12 symmetrically disposed with the first gear 11 is further rotatably connected in the base 9. The first gear 11 and the second gear 12 are tensioned outside and meshed with a same annular chain 13, and the chain 13 can rotate forwards or backwards periodically under the driving of the second motor 10.
As shown in fig. 4, an opening for exposing the chain 13 is formed at the upper end of the base 9, a first pressing seat 14 is slidably disposed at the upper end of the base 9, and the lower end of the first pressing seat 14 is inserted into the opening at the upper end of the base 9. The lower end of the first pressing seat 14 is fixedly connected with the upper chain 13 between the first gear 11 and the second gear 12. The chain 13 will drive the first pressing base 14 above to periodically slide back and forth along the linear direction when rotating. The upper end edge of the first pressing seat 14 gradually extends towards the horizontal direction to form a rectangular frame-shaped fixing plate 36, two air cylinders 15 with output shafts vertically upward are fixedly installed at the bottom of the fixing plate 36, and the output shafts of the air cylinders 15 penetrate out of the upper end of the fixing plate 36 and are arranged on the fixing plate 36 in a sliding mode. The two cylinders 15 are symmetrically arranged on both sides of the fixed plate 36.
As shown in fig. 4, the same second pressing base 16 is fixedly mounted on the output shaft of the two cylinders 15, and the second pressing base 16 is opposite to the first pressing base 14. The opposite side walls of the first pressing seat 14 and the second pressing seat 16 are jointly formed with a yielding groove 17 for the pipeline to pass through.
As shown in fig. 1 and 5, the guide base 4 opposite to the stem 3 includes a support frame 24 having a bottom fixedly mounted on the upper end of the rotary plate 29, and the support frame 24 is perpendicular to the rotary plate 29. The upper end of the supporting frame 24 is hinged with a transverse plate 25, and the transverse plate 25 can rotate around the hinged position along the vertical direction. The hinged position of the transverse plate 25 is screwed and fixed on the supporting frame 24 through bolts. One side of the support frame 24 facing the abdicating groove 17 (see fig. 4) is formed with a slide way 26 for inserting the pipeline, and the slide way 26 is obliquely and obliquely arranged along the direction far away from the abdicating groove 17.
As shown in fig. 1 and 5, the transverse plate 25 is provided with a through hole 27 located right above the opening at the upper end of the slide way 26, and the through hole 27 is used for a pipeline to pass through. The transverse plate 25 is further provided with a first through hole 30 and a second through hole 31 which are close to one side of the drilling seat 2, and the transverse plate 25 is penetrated through the first through hole 30 and the second through hole 31. And the first through hole 30 and the second through hole 31 are sequentially arranged along the length direction of the sleeve 5. The grout pipe 23 passes through the first through hole 30, and the slag discharge pipe 21 passes through the second through hole 31.
The embodiment also provides a construction method for non-excavation maintenance of a sewer pipeline, which is implemented by adopting the pipelayer 1 and comprises the following steps:
and S1, according to the construction drawing and the data about underground pipelines and barriers in the engineering area provided by the construction unit, and by combining the actual situation of the construction site, the probe 34 with the positioning system is adopted to survey the damaged pipeline.
And S2, after the position of the damaged pipeline is determined, digging a working pit 37 and a receiving pit 35 with the same depth on two sides of the damaged pipeline respectively. And both ends of the broken pipe are exposed from the corresponding work pit 37 and receiving pit 35, respectively.
S3, the pipelayer 1 is placed in the work pit 37, and the air cylinder 15 mounted on the first press base 14 is activated to lift the second press base 16 upward by the air cylinder 15. And one end of the damaged pipeline is inserted into the yielding groove 17 between the first pressing seat 14 and the second pressing seat 16. The output shaft of the cylinder 15 is then contracted and the damaged pipe is compressed in the relief groove 17. When the damaged pipeline is pressed tightly, the chain 13 installed in the base 9 drives the first pressing seat 14 to transmit backward, and the damaged pipeline is gradually pulled out from the hole under the driving of the first pressing seat 14 and the second pressing seat 16. When the first pressing base 14 moves to the end of the base 9, the output shaft of the cylinder 15 lifts the second pressing base 16 upward, and then the first pressing base 14 returns to the front end of the base 9 under the driving of the chain 13, and a new round of drawing operation is started. The damaged pipeline can be smoothly pulled out by continuously and circularly pulling the pipe-pulling seat 3. When the pipeline is pulled, the rotating speed of the first motor 7 is controlled, so that the damaged pipeline is pulled out slowly at a constant speed.
And S4, limiting the pulled damaged pipeline in the slide way 26 on the guide seat 4, and gradually extending the damaged pipeline upwards from the work pit 37 under the guiding action of the slide way 26. The damaged pipeline can be smoothly removed by a constructor located outside the working pit 37.
S5, the construction personnel inserts the traction pipe 33 from the receiving pit 35 at the other end along the path of the original pipeline to the working pit 37 direction gradually, and since the front end of the traction pipe 33 is provided with three independent branches, when the traction pipe 33 is inserted, the three branches are firstly bound through a rope. When one end of the traction tube 33 extends into the working pit 37, three branches of the traction tube 33 are respectively fixedly arranged on the lifting lugs 32 at the front end of the casing 5.
S6, the new pipeline is fixedly installed at the end of the sleeve 5 facing away from the traction tube 33.
And S7, the cutter head 8 at the front end of the sleeve 5 faces the path direction of the original pipeline by rotating the turntable 29, and the first motor 7 is started to drive the cutter head 8 to rotate. After the front end of the casing 5 is aligned with the original borehole, the operator in the receiving pit 35 drives the casing 5 forward by pulling the traction tube 33. When the casing 5 moves forwards, slurry is poured into the hole surface through the grouting pipe 23, the slurry has a good wall protection effect, stratum collapse is prevented, and the slurry carrying capacity is improved; the basic formula is as follows: 7 to 8 percent of prehydrated sodium bentonite, 0.3 to 0.5 percent of viscosity enhancer and 0.4 percent of fluid loss additive, so as to avoid the collapse of the ground. During construction, the screw conveyor 20 is started to discharge the excess silt to the ground through the slag discharge pipe 21. When the front end of the casing 5 is passed out of the borehole into the receiving pit 35, a new pipe will be re-laid in the new borehole under the guidance of the casing 5.
S8, after the casing 5 exits from the pit 35, it is finally backfilled by earth.
The specific effects of the embodiment are as follows:
when the pipeline maintenance and replacement are carried out on the road section which is difficult to drive in by large-scale drilling machine equipment, the construction method has small requirement on the surrounding environment and is convenient to construct; meanwhile, the influence on the surrounding road environment is small, the pipeline maintenance and replacement method is suitable for pipeline maintenance and replacement of narrow road sections, and construction is more flexible.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides an equipment is used in non-excavation maintenance of sewer pipe, includes pipelayer (1), its characterized in that: the pipe laying machine (1) is provided with a drilling seat (2), a pipe drawing seat (3) for drawing out a damaged pipeline and a guide seat (4) for guiding the drawn-out damaged pipeline; the drilling seat (2) comprises a sleeve (5) with a hollow interior, and the sleeve (5) is installed on the pipelayer (1) along the horizontal direction; a coaxial mounting plate (6) is arranged in the sleeve (5), a coaxial first motor (7) is mounted on the mounting plate (6), and an output shaft of the first motor (7) is rotatably connected to the mounting plate (6); the front end of the sleeve (5) is rotatably connected with a cutter head (8) parallel to the mounting plate (6), and a central shaft of the cutter head (8) is fixedly connected with an output shaft of a first motor (7); the pull pipe seat (3) comprises a base (9), a second motor (10) which is horizontally placed is installed in the base (9), and a coaxial first gear (11) is fixedly installed on an output shaft of the second motor (10); a second gear (12) which is symmetrical to the first gear (11) is also rotatably connected in the base (9); an annular chain (13) is tightly meshed between the first gear (11) and the second gear (12); a first pressing seat (14) is fixedly connected to the upper end of the chain (13), an air cylinder (15) with an output shaft vertically upward is mounted on the first pressing seat (14), and a second pressing seat (16) opposite to the first pressing seat (14) is fixedly mounted on the output shaft of the air cylinder (15); and the side walls of the first pressure seat (14) and the second pressure seat (16) which are opposite to each other are jointly formed with a yielding groove (17) for a pipeline to pass through.
2. The apparatus for trenchless maintenance of a sewer line according to claim 1, wherein: a blanking cavity (18) is formed between the mounting plate (6) and the cutter head (8), and a discharge hole (19) communicated with the blanking cavity (18) is formed in the lower end of the mounting plate (6); a spiral conveyor (20) is arranged in the sleeve (5), and the spiral conveyor (20) is positioned on one side, away from the cutter head (8), of the mounting plate (6); a feeding port of the spiral conveyor (20) is communicated with a discharging hole (19); the other opening of the spiral conveyor (20) is connected with a slag discharge pipe (21).
3. The apparatus for trenchless maintenance of a sewer line according to claim 2, wherein: offer grout mouth (22) that runs through on mounting panel (6), grout pipe (23) have been inserted through grout mouth (22) on mounting panel (6), the opening of grout pipe (23) is towards blade disc (8).
4. The apparatus for trenchless maintenance of a sewer line according to claim 3, wherein: the guide seat (4) comprises a support frame (24) arranged on the pipe laying machine (1), and the support frame (24) is positioned behind the pipe drawing seat (3); the upper end of the supporting frame (24) is hinged with a transverse plate (25), and the transverse plate (25) rotates around the hinged position along the vertical direction; a slideway (26) for inserting a pipeline is formed on one side of the support frame (24) facing the abdicating groove (17), and the slideway (26) inclines upwards along the direction far away from the abdicating groove (17); the transverse plate (25) is provided with a through hole (27) positioned above the slide way (26).
5. The apparatus for trenchless maintenance of a sewer line according to claim 4, wherein: the pipelayer (1) comprises a base (28) and a rotary table (29) which is rotatably connected above the base (28); the drilling seat (2), the tube drawing seat (3) and the guide seat (4) are arranged on the turntable (29) in a surrounding manner; and the pull pipe seat (3) and the guide seat (4) are oppositely arranged.
6. The apparatus for trenchless maintenance of a sewer line according to claim 5, wherein: the transverse plate (25) is provided with a first through hole (30) and a second through hole (31) which penetrate through the transverse plate; the first through hole (30) and the second through hole (31) are close to one side of the drilling seat (2), and the first through hole (30) and the second through hole (31) are arranged along the length direction of the sleeve (5).
7. The apparatus for trenchless maintenance of a sewer line according to claim 1, wherein: be provided with lug (32) on the front end lateral wall of sleeve pipe (5), lug (32) are circumference interval and encircle around blade disc (8), install traction tube (33) through lug (32) on sleeve pipe (5).
8. A non-excavation construction method for a sewer pipeline is characterized in that: the apparatus for non-excavation maintenance of a sewer line according to any one of claims 1 to 7, comprising the steps of:
s1, surveying the damaged pipeline by using a probe (34) with a positioning system according to the site survey;
s2, after the position of the damaged pipeline is determined, respectively excavating a working pit (37) and a receiving pit (35) on two sides of the damaged pipeline; exposing both ends of the damaged pipeline from the corresponding working pit (37) and receiving pit (35), respectively;
s3, hoisting the pipe laying machine (1) into a working pit (37), limiting and fixing one end of the damaged pipeline through a abdicating groove (17) arranged on a pipe pulling seat (3), and starting the pipe pulling seat (3) to gradually pull out the damaged pipeline; the rotating speed of the first motor (7) is controlled during pulling, so that the damaged pipeline is pulled out slowly at a constant speed;
s4, limiting the pulled damaged pipeline in the slide way (26) on the guide seat (4), and gradually extending the damaged pipeline upwards from the work pit (37) under the guide effect of the slide way (26);
s5, inserting the traction pipe (33) from the receiving pit (35) at the other end along the path of the original pipeline gradually towards the working pit (37) by constructors; when one end of the traction pipe (33) extends into the working pit (37), the traction pipe (33) is fixedly arranged on a lifting lug (32) at the front end of the sleeve (5);
s6, fixedly installing a new pipeline at one end of the sleeve (5) departing from the traction tube (33);
s7, the cutter head (8) at the front end of the sleeve (5) faces the path direction of the original pipeline by rotating the turntable (29), and the first motor (7) is started to drive the cutter head (8) to rotate; the constructor positioned in the receiving pit (35) drives the sleeve (5) to move forwards by dragging the traction pipe (33); when the sleeve (5) moves forward, slurry is poured into the surface of the rotating hole through the grouting pipe (23) to avoid the ground from collapsing; during construction, the spiral conveyor (20) is started to discharge redundant silt to the ground through the slag discharge pipe (21);
and S8, after the casing pipe (5) penetrates out of the receiving pit (35), finally backfilling through the earth.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010006782.5A CN111156020B (en) | 2020-01-03 | 2020-01-03 | Non-excavation maintenance equipment for sewer line and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010006782.5A CN111156020B (en) | 2020-01-03 | 2020-01-03 | Non-excavation maintenance equipment for sewer line and construction method thereof |
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| CN111156020A CN111156020A (en) | 2020-05-15 |
| CN111156020B true CN111156020B (en) | 2021-03-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005299711A (en) * | 2004-04-07 | 2005-10-27 | Shonan Plastic Mfg Co Ltd | Regenerating pipe and its laying method |
| CN108222221B (en) * | 2018-02-01 | 2020-06-26 | 杭州大江东城市设施管养有限公司 | Maintenance process for municipal sewage pipe |
| CN208595353U (en) * | 2018-06-22 | 2019-03-12 | 无锡市鸣腾园林工程股份有限公司 | A kind of pipeline non-excavation type sectional repair device |
| KR102042440B1 (en) * | 2018-11-01 | 2019-11-08 | 재단법인대구경북과학기술원 | Robot for repairing drainpipe and Control method of the robot |
| CN109798069B (en) * | 2019-01-22 | 2020-09-08 | 福建亿钻机械有限公司 | Complete equipment for repairing deep foundation pit small-diameter pipeline and construction method |
| CN109751476A (en) * | 2019-03-15 | 2019-05-14 | 江苏爱索新材料科技有限公司 | A kind of pipeline rehabilitation equipment |
| CN110565779B (en) * | 2019-09-03 | 2021-07-30 | 苏州市平海排水服务有限公司 | Method for trenchless replacement and repair of sewage pipeline |
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Denomination of invention: Equipment and construction method for non excavation maintenance of sewage pipelines Effective date of registration: 20231202 Granted publication date: 20210316 Pledgee: Zhejiang Wenzhou Lucheng Rural Commercial Bank Co.,Ltd. Shuangyu sub branch Pledgor: WENZHOU HONGTAI CONSTRUCTION Co.,Ltd. Registration number: Y2023330002931 |