Pipe renewal tunneling machine and construction method thereof

A technology for roadheaders and pipelines, which is applied to the field of roadheaders for pipeline renewal and its construction, can solve the problems of interruption, elevation, and difficulty in cleaning and maintaining fluid media in small pipelines.

Active Publication Date: 2020-10-30
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the update of small pipelines will also interrupt the operation of pipeline lines. Even the latest foreign patented technologies (such as the patented technical solutions with application numbers JPA 2014185492 and JPA 2015059417) must intercept the updated section and use auxiliary bypass Pass
In addition, the internal environment of the underground pipeline is complex, and the settlement of the fluid medium circulation throughout the year has brought about sludge residues that raise the water level inside the pipeline, making it difficult to clean and maintain the fluid medium inside the pipeline. How to ensure the fluid medium inside the old pipeline It is a major challenge for current trenchless pipeline renewal technology to completely clean it up and make it have a good pass-through function during the pipeline renewal process

Method used

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  • Pipe renewal tunneling machine and construction method thereof
  • Pipe renewal tunneling machine and construction method thereof
  • Pipe renewal tunneling machine and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 5

[0086] Embodiment 5: a kind of slag clearing and keeping device for pipeline renewal roadheader, such as Figure 7~10 As shown, it includes a dredging head 11 and a power transmission shaft tube 12, the front end of the power transmission shaft tube 12 is connected with the dredging head 11, and the rear end of the power transmission shaft tube 12 is connected with the excavating cutter head 5 of the excavation host 2 .

[0087] like Figure 13 As shown, the dredging head 11 includes an advance cutter head 11-1, and the advance cutter head 11-1 includes at least two cutter beams 11-1-1 arranged at equal angles, and three or more cutter beams can be set as required. 4 or more, knives 11-1-2 are evenly distributed on the knife beam 11-1-1, the knife can be a cutter or a scraper, and a fish tail knife can be set in the middle of the knife beam to improve the dredging ability. A drive shaft tube 11-2 is arranged on the back of the advance cutter head 11-1, and at least one pig 1...

Embodiment 6

[0090] Embodiment 6: a kind of slag cleaning device for pipeline renewal roadheader, such as Figure 11 , 12 As shown, two pigs 11-3 are fixed on the drive shaft tube 11-2, the drive shaft tube 11-2 and the pig 11-3 are coaxially arranged, and the two adjacent pigs 11- 3 are connected by a support sleeve 11-6, and a filter plate 11-7 is provided at the front end of the pig 11-3 near the preceding cutter head 11-1 to filter out larger foreign objects in the sewage. On the one hand, the filter plate and the pig can isolate the sewage, prevent the surrounding soil from being polluted, and achieve the effect of sealing and isolating the second muddy water tank on the rear side of the pig. The sewage can be completely entered into the internal hollow drive shaft pipe by the advance cutter head at the front end of the pig, and then enter the Baotong circulation system through the power transmission shaft pipe for sewage circulation. The power transmission shaft tube 12 is connecte...

Embodiment 7

[0093] Embodiment 7: a kind of slag cleaning and keeping device for pipeline renewal roadheader, such as Figure 14 , 15 As shown, the dredging head 11 includes a central axis tube 11-2a, and the central axis tube is of a hollow design. The front end of the central shaft pipe 11-2a is provided with a conical grille head 11-1a. The conical grille head 11-1a can not only perform drilling and dredging on the sludge, but also allow the sewage to enter the central axis through the conical grille. Tube. Two pigs 11-3 are fixed on the central axis pipe 11-2a, the central axis pipe 11-2a and the pig 11-3 are arranged coaxially, and pass between the two adjacent pigs 11-3 The support sleeve 11-6 is connected, and the front end of the pig 11-3 close to the conical grille head 11-1a is provided with a wire brush 11-7a; the wire brush and the rubber cup of the pig can not only realize auxiliary sewage discharge function, and achieve the effect of closed isolation for the excavation cab...

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Abstract

The invention discloses a pipe renewal tunneling machine and a construction method thereof. The pipe renewal tunneling machine comprises a main tunneling unit and a dredging circulating system, wherein a sludge-removing dredging device is arranged on the front portion of the main tunneling unit, and the sludge-removing dredging device penetrates through the main tunneling unit to be connected withthe dredging circulating system. The main tunneling unit comprises a shield body and a breaking and tunneling cutter head, a main drive is arranged in the shield body, the main drive is connected with the breaking and tunneling cutter head, an excavation bin is arranged between the breaking and tunneling cutter head and the main drive, a slurry inlet pipe is arranged on the upper portion of the excavation bin, and a sludge discharging system is connected with the lower portion of the excavation bin. The sludge-removing dredging device penetrates through the main tunneling unit to be connectedwith the dredging circulating system, in the tunneling process, the sludge-removing dredging device goes ahead of the cutter head of the main tunneling unit, sludge in a pipeline is removed, waste water in the pipeline flows backwards through the dredging circulating system, and it is ensured that a fluid medium in a renewed pipeline is not unblocked in the construction process, the renewed pipeline can keep unblocked and cannot be cut off, and it is achieved that pipeline breaking and renewal laying are synchronously completed.

Description

technical field [0001] The invention relates to the technical field of pipeline renewal, in particular to a roadheader for pipeline renewal and a construction method thereof. Background technique [0002] With the development of urbanization, the old urban pipeline network is not only facing damage over the years, but also the original pipeline diameter is too small to meet the requirements of urban underground pipelines. Therefore, pipeline renewal technology faces significant demand. [0003] The repair and renewal technology of pipeline is mainly divided into two categories: cut-and-cover method and trenchless technology. With the rapid development of the city, the cut-and-cover method has been difficult to meet the complex requirements of the urban core area. In the 1980s, Europe took the lead in carrying out related research on trenchless technology, and my country has gradually carried out research in this field in recent years. As research progresses, trenchless pi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/087E21D11/08E21D9/06E21D9/093E21D9/12
CPCE21D9/0873E21D11/08E21D9/12E21D9/0621E21D9/093E21B7/30E21D9/06
Inventor 贾连辉薛广记谭顺辉范磊王杜娟冯琳龚廷民苏明浩于少辉李光叶蕾冯战勇
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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