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Highway tunnel structure construction method

A technology for road tunnels and construction methods, applied in tunnels, earthwork drilling, mining equipment, etc., can solve the problems of easy damage, poor flexibility of seismic performance, etc.

Inactive Publication Date: 2016-08-03
潘燕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the different seismic intensity and types of earthquakes at the construction site, the road tunnel structure is suitable for the geological conditions where there is a certain thickness of sand or soil at the entrance of the tunnel, and the rocky surrounding rock in the tunnel body, and it is stable. The performance has been improved to a certain extent, but its seismic performance is still poor in flexibility to adapt to local requirements, and it is easy to be damaged when encountering high-intensity earthquakes.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: as figure 1 The construction method of the shown highway tunnel structure comprises the following steps:

[0028] (1) Preliminarily construct the structural model of the highway tunnel through computer-aided design, and determine the main components of the structural model of the highway tunnel;

[0029] (2) According to the local seismic fortification intensity, seismic design grouping and site category of the road tunnel structure, construct a random ground motion model of the road tunnel structure model, and generate a power spectral density function corresponding to the displacement and velocity of the main components;

[0030] (3) Calculate the corresponding displacement power spectral density and velocity power spectral density according to the power spectral density function of the displacement and velocity of the main components, and carry out integral calculation on the displacement power spectral density and velocity power spectral density to obt...

Embodiment 2

[0045] Embodiment 2: as figure 1 The construction method of the shown highway tunnel structure comprises the following steps:

[0046] (1) Preliminarily construct the structural model of the highway tunnel through computer-aided design, and determine the main components of the structural model of the highway tunnel;

[0047] (2) According to the local seismic fortification intensity, seismic design grouping and site category of the road tunnel structure, construct a random ground motion model of the road tunnel structure model, and generate a power spectral density function corresponding to the displacement and velocity of the main components;

[0048] (3) Calculate the corresponding displacement power spectral density and velocity power spectral density according to the power spectral density function of the displacement and velocity of the main components, and carry out integral calculation on the displacement power spectral density and velocity power spectral density to obt...

Embodiment 3

[0063] Embodiment 3: as figure 1 The construction method of the shown highway tunnel structure comprises the following steps:

[0064] (1) Preliminarily construct the structural model of the highway tunnel through computer-aided design, and determine the main components of the structural model of the highway tunnel;

[0065] (2) According to the local seismic fortification intensity, seismic design grouping and site category of the road tunnel structure, construct a random ground motion model of the road tunnel structure model, and generate a power spectral density function corresponding to the displacement and velocity of the main components;

[0066] (3) Calculate the corresponding displacement power spectral density and velocity power spectral density according to the power spectral density function of the displacement and velocity of the main components, and carry out integral calculation on the displacement power spectral density and velocity power spectral density to obt...

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Abstract

The invention discloses a highway tunnel structure construction method, which comprises the steps of building a highway tunnel structure model; building a highway tunnel structure random ground vibration model; performing displacement and speed power spectral density calculation on main components of a highway tunnel structure; building a highway tunnel structure damage model; performing damage index calculation; performing duplex reliability assessment on the highway tunnel structure model; performing construction and the like. The highway tunnel structure construction method has the advantages that the construction is performed according to the highway tunnel structure model which is assessed to be qualified in advance; reasonable regulation is made according to the assessment result; the anti-seismic performance and the structure safety are improved; the efficiency is improved; the cost is reduced.

Description

technical field [0001] The invention relates to the field of road tunnel construction, in particular to a construction method of a road tunnel structure. Background technique [0002] In the related art, a road tunnel structure is provided, which includes a protective arch, main protective piles supported at both ends of the protective arch, and secondary protective piles supported between the two ends of the protective arch, wherein the protective arch It is arc-shaped and is provided with supported plane structures on both sides, and the secondary guard piles are supported on the plane structures. The main components include retaining arches, main retaining piles and secondary retaining piles. [0003] Due to the different seismic intensity and types of earthquakes at the construction site, the road tunnel structure is suitable for the geological conditions where there is a certain thickness of sand layer or soil layer at the entrance of the tunnel, and the rocky surround...

Claims

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Application Information

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IPC IPC(8): E21D9/14
CPCE21D9/14
Inventor 潘燕
Owner 潘燕
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