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Method for obtaining information of vertical loads of bottom of double-track railway tunnel

A vertical load and tunnel technology, which is applied in the field of railway engineering design and heavy-duty railway tunnel design, can solve problems such as difficulties, rationality of construction design, and influence on safety and reliability.

Inactive Publication Date: 2016-11-02
SOUTHWEST JIAOTONG UNIV +2
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Problems solved by technology

This has caused great difficulties in the design of the bottom structure of heavy-duty railway tunnels, and will have a major impact on the rationality, safety and reliability of its construction design

Method used

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  • Method for obtaining information of vertical loads of bottom of double-track railway tunnel
  • Method for obtaining information of vertical loads of bottom of double-track railway tunnel
  • Method for obtaining information of vertical loads of bottom of double-track railway tunnel

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Embodiment Construction

[0088] The present invention is specifically described below by way of embodiment, and present embodiment is only used to further illustrate the present invention, but can not be interpreted as the restriction to protection scope of the present invention, some non-compliances that those skilled in the art make according to the content of the present invention above-mentioned Essential improvements and adjustments also belong to the protection scope of the present invention.

[0089] combine Figure 1 to Figure 24 .

[0090] The present invention realizes the loads of heavy-duty railway tunnels at different vertical depths through the following proposals.

[0091] Including the following method steps:

[0092] Step 1. Obtain the design parameters of the double-track heavy-haul railway tunnel, the position of the heavy-haul train line and the train parameters, including at least the axle load data of the passing train;

[0093] Step 2. Obtain the incremental train load data o...

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Abstract

The invention discloses a method for obtaining information of vertical loads of the bottom of a double-track railway tunnel. According to the method, through field tests, data collection and analysis and mathematical model establishment, heavy haul train loads, at different depths, of structures at the bottom of the one-tunnel double-track heavy haul railway tunnel under different axle load conditions are obtained. The method also fully reflects dynamic effects of a heavy haul train to the structures at the bottom of the heavy haul railway tunnel. The method for obtaining the current heavy haul train loads at different depths of the structures at the bottom of the tunnel in the vertical transfer process is provided, scientific basis is provided for the design of the structures at the bottom of the heavy haul railway tunnel, and economical efficiency, reasonableness and high efficiency are achieved to the greatest extent.

Description

technical field [0001] The invention belongs to the technical field of railway engineering design, in particular to the technical field of heavy-duty railway tunnel design, in particular to the construction design technology of the bottom structure of heavy-duty railway tunnels. Background technique [0002] The technology of heavy-duty freight train transportation is developing rapidly all over the world, and the vertical attenuation law of heavy-duty train load in heavy-duty railway tunnels has become the key to the design of the bottom structure of heavy-duty railway tunnels. Therefore, the acquisition of load information of the bottom structure of heavy-duty railway tunnels has gradually been highly valued by relevant researchers, designers and construction personnel. At present, the diseases of my country's heavy-duty railway tunnels are mainly concentrated in the bottom structure. The main reason is that due to the long-term rolling of heavy-duty trains with large axle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D33/00E01B1/00
CPCE01B1/00E02D33/00E02D2600/10
Inventor 王明年于丽李自强赵勇倪光斌华阳林传年唐国荣
Owner SOUTHWEST JIAOTONG UNIV