Pillar foundation structure of overhead line system and construction method thereof

A technology of foundation structure and construction method, which is applied in the direction of foundation structure engineering, construction, sheet pile wall, etc., can solve the problems affecting the existing railway subgrade and cable trench, railway operation interruption, etc., and achieve the improvement of vertical bearing capacity and anti-overturning capability, impact mitigation, operational and safety risk mitigation

Pending Publication Date: 2021-07-13
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For the newly built hard-span catenary structure foundation near the existing railway, the construction of the above two pillar foundations will directly affect the existing railway subgrade and cable trench, which may cause interruption of railway operation
Therefore, to construct the pillar foundation of the catenary under the condition of not affecting the operation of the existing line, the existing structural form and its construction method all have relatively high risks

Method used

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  • Pillar foundation structure of overhead line system and construction method thereof
  • Pillar foundation structure of overhead line system and construction method thereof
  • Pillar foundation structure of overhead line system and construction method thereof

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Embodiment Construction

[0043] It should be noted that the various embodiments / implementations provided in this application can be combined with each other without conflicts. The detailed description in the specific embodiment should be understood as an explanation of the purpose of the application, and should not be regarded as an improper limitation of the application.

[0044] In the description of this application, the "upper", "lower", "top" and "bottom" orientations or positional relationships are descriptions of the catenary pillar infrastructure in normal use, based on the attached figure 1 The orientation or positional relationship shown, "horizontal" is attached figure 1 left and right direction, "vertical" is attached figure 1 up and down direction. It should be understood that these orientation terms are only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific or...

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Abstract

The invention discloses a pillar foundation structure of an overhead line system. The pillar foundation structure comprises a supporting part, a pile foundation part, and a waterproof curtain; the upper end of the supporting part is used for mounting a pillar of the overhead line system; the upper end of the pile foundation part is connected with the lower end of the supporting part; and the waterproof curtain is located below the supporting part and surrounds the pile foundation part. The invention further provides a construction method of the pillar foundation structure of the overhead line system. According to the pillar foundation structure of the overhead line system and the construction method thereof, the excavation depth is small, the excavation area is small, the vertical bearing capacity and the anti-overturning capacity of the pillar foundation structure of the railway overhead line system are improved, the influence of construction of the pillar foundation structure of the overhead line system on the surrounding environment is reduced, and particularly, the operation risk and the safety risk of an existing railway line are reduced.

Description

technical field [0001] The invention relates to the technical field of railway embankment engineering, in particular to a catenary pillar foundation structure and a construction method thereof. Background technique [0002] High-speed railway catenary is a transmission line erected along the railway line to supply power to electric locomotives. It is composed of contact suspension, supporting device, positioning device, pillar and pillar foundation. Among them, the pillar foundation of the catenary is the foundation of the high-speed railway catenary, and its structure and construction quality directly affect the transportation capacity of the catenary electrified railway. The catenary pillar foundation can be divided into extended foundation and pile foundation. The excavation surface of the extension foundation is large and the excavation depth is shallow; the excavation surface of the pile foundation is small and the excavation depth is deep. Under normal circumstances,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/42E02D27/12E02D19/18E02D5/34E02D5/62E02D15/04E02D5/68
CPCE02D5/34E02D5/62E02D5/68E02D15/04E02D19/18E02D27/12E02D27/42
Inventor 胡健沈磊向福稳吴亮孙阊禹
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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