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CN-121993660-A - Method for installing water supply and drainage pipeline in pipe-jacking pipeline

CN121993660ACN 121993660 ACN121993660 ACN 121993660ACN-121993660-A

Abstract

The invention discloses a method for installing a water supply and drainage pipeline in a pipe-jacking pipeline, relates to the field of water supply and drainage pipeline construction, and solves the problems that the existing installation method is low in construction efficiency and difficult to guarantee construction quality. The technical scheme includes that a pipe jacking pipeline is arranged between a first vertical shaft and a second vertical shaft, a first operation platform is arranged at the bottom of the first vertical shaft, a track is paved, a second operation platform is arranged at the bottom of the second vertical shaft, a winch is arranged at the bottom of the second vertical shaft, a first section of water feeding and draining pipeline is arranged, hoops are sleeved at two ends of the water feeding and draining pipeline respectively, a support and a roller are fixed at the bottom of the hoops, a next section of water feeding and draining pipeline is arranged, the water feeding and draining pipeline to be arranged is fixedly connected with the installed water feeding and draining pipeline, operation is repeated until the installation of all the water feeding and draining pipelines is completed, and finally sand blasting filling or grouting is carried out on an annular cavity between the pipe jacking pipeline and the water feeding and draining pipeline. The invention is used for the construction of water supply and drainage pipelines.

Inventors

  • LIU JIAN
  • XIAN WEI
  • TANG JIN

Assignees

  • 中国十九冶集团有限公司

Dates

Publication Date
20260508
Application Date
20260330

Claims (10)

  1. 1. The method for installing the water supply and drainage pipeline in the pipe-jacking pipeline is characterized in that the method for installing the water supply and drainage pipeline (4) comprises the following steps of: S1, a first operation platform (5) is arranged at the bottom of a first vertical shaft (1), at least two tracks (6) are paved on the first operation platform (5), each track (6) is arranged along the direction of a pipe jacking pipeline (3), one end of each track (6) is smoothly connected with one end of the pipe jacking pipeline (3) positioned in the first vertical shaft (1), a second operation platform (7) is arranged at the bottom of a second vertical shaft (2), a winch (8) is arranged at the second operation platform (7), and the winch (8) is positioned on the central axis of the pipe jacking pipeline (3); S2, installing a first section of water supply and drainage pipeline (4), wherein the two ends of the water supply and drainage pipeline (4) are respectively sleeved with a hoop (9), the bottom of the hoop (9) is fixedly provided with a bracket (10), the bracket (10) at the bottom of the hoop (9) is connected with at least two rollers (11), then hoisting the water supply and drainage pipeline (4) to a first operation platform (5), arranging the rollers (11) on a track (6), and finally, introducing the water supply and drainage pipeline (4) into a pipe jacking pipeline (3) by utilizing a winch (8), wherein the rear end of the water supply and drainage pipeline (4) is left in a first vertical shaft (1); S3, installing a next water supply and drainage pipeline (4), namely sleeving a hoop (9) at two ends of the water supply and drainage pipeline (4) to be installed respectively, fixing a bracket (10) at the bottom of the hoop (9), connecting at least two rollers (11) to the bracket (10) at the bottom of the hoop (9), hoisting the water supply and drainage pipeline (4) to be installed to a first operation platform (5), arranging the rollers (11) on a track (6), fixedly connecting the hoop (9) at the front end of the water supply and drainage pipeline (4) to be installed with the hoop (9) at the rear end of the water supply and drainage pipeline (4), and finally guiding the water supply and drainage pipeline (4) to be installed into a jacking pipe pipeline (3) by using a winch (8), and leaving the rear end of the water supply and drainage pipeline (4) to be installed in a first vertical shaft (1); S4, repeating the step S3 until the installation of all water supply and drainage pipelines (4) is completed; s5, sand-blasting filling or grouting is carried out on the annular cavity between the inner wall of the pipe-jacking pipeline (3) and the outer wall of the water supply and drainage pipeline (4).
  2. 2. A method of installing a water supply and drainage pipeline in a pipe-jacking pipeline as claimed in claim 1, wherein the pipe-jacking pipeline (3) is formed by jacking a pipe from reinforced concrete, the first shaft (1) is a pipe-jacking working well, and the second shaft (2) is a pipe-jacking receiving well.
  3. 3. The method for installing a water supply and drainage pipeline in a pipe-jacking pipeline according to claim 1, wherein the first operation platform (5) and the second operation platform (7) are steel structure platforms, the track (6) is channel steel, the track (6) is leveled in the step S1, and the top surface of the track (6) is flush with the inner wall of the pipe-jacking pipeline (3).
  4. 4. The method for installing a water supply and drainage pipeline in a pipe-jacking pipeline according to claim 1, wherein in the step S2 and the step S3, a support (10) is fixed at the top of the anchor ear (9), the support (10) at the top of the anchor ear (9) is connected with at least one roller (11), and the diameter of a circumscribed circle corresponding to each roller (11) at the periphery of the anchor ear (9) is not larger than the inner diameter of the pipe-jacking pipeline (3).
  5. 5. The method for installing a water supply and drainage pipeline in a pipe-jacking pipeline according to claim 4, wherein the support (10) fixed to the hoop (9) is provided with supporting legs, the supporting legs are arranged along the radial direction of the hoop (9), the supporting legs are of a structure with adjustable length, the rollers (11) are installed on the supporting legs, and the rollers (11) are universal wheels.
  6. 6. The method for installing a water supply and drainage pipeline in a pipe-jacking pipeline according to any one of claims 1 to 5, wherein a cushion layer is further arranged between the anchor ear (9) and the water supply and drainage pipeline (4) in the step S2 and the step S3.
  7. 7. The method for installing a water supply and drainage pipeline in a pipe-jacking pipeline according to any one of claims 1-5, wherein in the step S2 and the step S3, the water supply and drainage pipeline (4) is a spheroidal graphite cast iron pipeline, two ends of the spheroidal graphite cast iron pipeline are provided with sockets and sockets which are mutually matched, and a sealing ring (12) is arranged between the sockets and the sockets of the two spheroidal graphite cast iron pipelines which are mutually connected.
  8. 8. The method for installing a water supply and drainage pipeline in a pipe jacking pipeline according to any one of claims 1 to 5, wherein in the step S2 and the step S3, the rear end of the water supply and drainage pipeline (4) is placed between a traction sliding bracket (13), a traction rope (14) of a winch (8) penetrates through the pipe jacking pipeline (3) and then is connected with the traction sliding bracket (13), the water supply and drainage pipeline (4) is pushed into the pipe jacking pipeline (3), the traction sliding bracket (13) comprises a base (13-1), wheels (13-2) matched with a track (6) are arranged on the bottom surface of the base (13-1), a baffle (13-3) is fixed on the top surface of the base (13-1), the rear end of the water supply and drainage pipeline (4) is placed between the base (13-1) and the baffle (13-3), the diameter of the baffle (13-3) is not smaller than the outer diameter of the water supply and drainage pipeline (4), a connecting piece (13-4) is arranged at the center of the baffle (13-3), and the traction rope (14) is connected with the connecting piece (13-4).
  9. 9. The method for installing a water supply and drainage pipeline in a pipe-jacking pipeline according to any one of claims 1 to 5, wherein in the step S3, the hoop (9) at the front end of the water supply and drainage pipeline (4) to be installed is fixedly connected with the hoop (9) at the rear end of the installed water supply and drainage pipeline (4) through at least two transverse rods (15).
  10. 10. The method for installing a water supply and drainage pipeline in a pipe-jacking pipeline according to any one of claims 1 to 5, wherein in the step S2 to the step S4, after the water supply and drainage pipeline (4) enters the pipe-jacking pipeline (3), the central axis of the water supply and drainage pipeline (4) coincides with the central axis of the pipe-jacking pipeline (3).

Description

Method for installing water supply and drainage pipeline in pipe-jacking pipeline Technical Field The invention relates to the field of water supply and drainage pipeline construction, in particular to a method for paving a pipe, and specifically relates to a method for installing a water supply and drainage pipeline in a pipe-jacking pipeline. Background In municipal underground pipeline engineering, the pipe jacking technology can reduce pavement damage and avoid traffic interference by virtue of the non-excavation advantage of the pipe jacking technology, and the pipe jacking technology becomes a key construction method for traversing complex stratum. The efficiency and the reliability of the water supply and drainage pipeline are considered in the pipe-jacking pipeline, and the spheroidal graphite cast iron pipeline is the first choice of the municipal water supply and drainage pipeline due to the performance advantage and the cost advantage. The spheroidal graphite cast iron pipeline is installed in the pipe-jacking pipeline to serve as a water supply and drainage pipeline, and the spheroidal graphite cast iron pipeline is usually positioned and spliced by adopting a manual pushing or simple roller-assisted method. The construction method has the following problems that the first and the single-section ductile cast iron pipelines are 6m long, the mass is large, the pushing is difficult, the manual carrying and pushing operation intensity is extremely high, the construction efficiency is low, obvious potential safety hazards exist, the second and the two sections of ductile cast iron pipelines are difficult to accurately control the positions during splicing, dislocation or eccentricity easily occurs, the sealing rings at the joints are not uniformly compressed or insufficient to influence the sealing performance of the joints, hidden leakage hazards are buried, the third and the ductile cast iron pipelines lack of stable supporting and guiding structures during installation, the resistance in the sliding process of the ductile cast iron pipelines is high, the ductile cast iron pipelines are stressed unevenly, and the problems of clamping stagnation, pipe body outer wall scratch, socket joint damage and the like are extremely easy to occur. In view of the above, in order to achieve smooth installation of the water supply and drainage pipelines and ensure construction safety and construction quality, development of a method for installing the water supply and drainage pipelines in the pipe-jacking pipeline is highly demanded. Disclosure of Invention The invention provides a method for installing a water supply and drainage pipeline in a pipe-jacking pipeline, which solves the problems that the existing installation method is low in construction efficiency and difficult to ensure construction quality. The technical scheme adopted by the invention is that the method for installing the water supply and drainage pipeline in the pipe-jacking pipeline comprises the following steps that the pipe-jacking pipeline is arranged between the first vertical shaft and the second vertical shaft. S1, installing a first operation platform at the bottom of a first vertical shaft, paving at least two tracks on the first operation platform, arranging each track along the direction of a pipe jacking pipeline, smoothly connecting one end of each track with one end of the pipe jacking pipeline, which is positioned in the first vertical shaft, installing a second operation platform at the bottom of a second vertical shaft, installing a winch on the second operation platform, and positioning the winch on the central axis of the pipe jacking pipeline. In order to reduce the influence of construction, the pipe-jacking pipeline is formed by a reinforced concrete pipe-jacking pipe through pipe jacking, wherein a first vertical shaft is a pipe-jacking working well, and a second vertical shaft is a pipe-jacking receiving well. Specifically, the first operation platform and the second operation platform are steel structure platforms, the track is channel steel, the track is leveled in the step S1, and the top surface of the track is leveled with the inner wall of the pipe jacking pipeline. S2, installing a first water supply and drainage pipeline, wherein two ends of the water supply and drainage pipeline are respectively sleeved with a hoop, a support is fixed at the bottom of the hoop, at least two rollers are connected with the support at the bottom of the hoop, then the water supply and drainage pipeline is hoisted to a first operation platform, the rollers are arranged on a track, and finally the water supply and drainage pipeline is led into a pipe jacking pipeline by a winch, and the rear end of the water supply and drainage pipeline is left in a first vertical shaft. S3, installing a next water supply and drainage pipeline, namely sleeving a hoop at two ends of the water supply and drainage pipeline to be installed respectively,