Construction method for transfer channel needing pipeline underneath-passing
A transfer channel and construction method technology, applied in tunnels, tunnel linings, underground chambers, etc., can solve problems such as excessive shape, pipeline damage, pipeline settlement, etc., to reduce construction costs, control settlement well, and shorten construction period. Effect
Active Publication Date: 2020-01-31
中建八局轨道交通建设有限公司
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Problems solved by technology
[0004] In order to overcome the defects of the existing technology, a construction method for the transfer channel passing through the pipeline is provided to solve the problem that the traditional tunnel construction method is used to construct the transfer channel passing through many pipelines, which will easily lead to the settlement of many pipelines , The shape is too large, which leads to the damage of many pipelines
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[0024] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.
[0025] figure 1 It is a schematic structural diagram of the transfer channel of the underpass pipeline in the embodiment of the present invention, figure 2 for figure 1 The cross-sectional view at H-H in the middle, Figure 3 to Figure 8 It is a schematic diagram of the construction steps of the construction method of the transfer channel passing through the pipeline under the embodiment of the present invention, Figure 9 Schemat...
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The invention provides a construction method for a transfer channel needing pipeline underneath-passing. The construction method comprises the following methods that the starting end of the transfer channel is excavated through a CRD method to below the end, close to the starting end, of an existing pipeline, and a primary support structure is constructed in the excavated transfer channel; the settlement condition of the earth surface and the existing pipeline and the deformation condition of the primary support structure are monitored, and after the settlement of the existing pipeline and theearth surface and the deformation of the primary support structure are stable, excavating is continued to the terminal end of the transfer channel through a CD method. The construction method solvesthe problems that due to the fact that the transfer channel needing multiple pipeline underneath-passing is constructed through adopting a traditional tunnel construction method, multiple pipelines are settled easily, the deformation is too large easily, and then the multiple pipelines are damaged are solved.
Description
technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a construction method for a transfer passage passing through a pipeline. Background technique [0002] The subway has become the most indispensable part of citizens' daily life, and new subway lines need to be added every year to meet people's needs for subway attendance. With the increase of the number of lines, it is necessary to build transfer channels to realize the connection between different line platforms. With the increase of the number of stations, there are more and more transfer channels located in the existing pipeline-intensive areas of the city. How to effectively ensure the safety of the surrounding pipelines is the focus and difficulty of the project. [0003] In particular, the transfer channel needs to pass through many pipelines (such as heat pipes, rainwater pipes, and sewage pipes), and the bottom of many pipelines is very close to the vault of ...
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IPC IPC(8): E21D9/00E21D11/15E21D11/10
CPCE21D9/003E21D11/10E21D11/107E21D11/152E21D9/008
Inventor 杜劢侯海林王浩楠张景武周杰骆小芳
Owner 中建八局轨道交通建设有限公司