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Combined cofferdam construction method under complicated geological conditions

A technology with complex geological conditions and construction methods, applied in the field of joint cofferdam construction, can solve problems such as damage and poor flexibility in seismic performance

Inactive Publication Date: 2016-07-06
潘燕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the complex geological conditions of the site during construction, and different earthquake intensities and types, the seismic performance of the combined cofferdam is generally poor in flexibility to adapt to local requirements, and it is easily damaged when encountering an earthquake

Method used

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  • Combined cofferdam construction method under complicated geological conditions
  • Combined cofferdam construction method under complicated geological conditions
  • Combined cofferdam construction method under complicated geological conditions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: as figure 1 The combined cofferdam construction method under the complex geological conditions shown includes the following steps:

[0029] (1) Preliminarily construct the combined cofferdam structure model through computer-aided design, and determine the main components of the combined cofferdam structure model;

[0030] (2) According to the local seismic fortification intensity, seismic design grouping and site category of the combined cofferdam structure, construct the random ground motion model of the combined cofferdam structure model, and generate the power spectral density function corresponding to the displacement and velocity of the main components;

[0031] (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 ve...

Embodiment 2

[0046] Embodiment 2: as figure 1 The combined cofferdam construction method under the complex geological conditions shown includes the following steps:

[0047] (1) Preliminarily construct the combined cofferdam structure model through computer-aided design, and determine the main components of the combined cofferdam structure model;

[0048] (2) According to the local seismic fortification intensity, seismic design grouping and site category of the combined cofferdam structure, construct the random ground motion model of the combined cofferdam structure model, and generate the power spectral density function corresponding to the displacement and velocity of the main components;

[0049] (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 ve...

Embodiment 3

[0064] Embodiment 3: as figure 1 The combined cofferdam construction method under the complex geological conditions shown includes the following steps:

[0065] (1) Preliminarily construct the combined cofferdam structure model through computer-aided design, and determine the main components of the combined cofferdam structure model;

[0066] (2) According to the local seismic fortification intensity, seismic design grouping and site category of the combined cofferdam structure, construct the random ground motion model of the combined cofferdam structure model, and generate the power spectral density function corresponding to the displacement and velocity of the main components;

[0067] (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 ve...

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Abstract

The invention discloses a combined cofferdam construction method under complicated geological conditions. The method comprises the steps of establishing a combined cofferdam structural model, establishing a combined cofferdam structure random ground motion model, calculating the displacement and velocity power spectral density of main components of a combined cofferdam structure, establishing a combined cofferdam structure damage model, calculating damage indexes, conducting dual reliability degree assessment on the combined cofferdam structure model, conducting construction and the like. According to the method, construction is conducted according to the combined cofferdam structure model which is assessed to be qualified in advance, reasonable adjustment is made in time according to an assessment result, anti-seismic property and structural safety are improved, efficiency is improved, and cost is saved.

Description

technical field [0001] The invention relates to the field of combined cofferdam construction, in particular to a combined cofferdam construction method under complex geological conditions. Background technique [0002] The current cofferdam structure usually has two forms, one is a cofferdam formed by rows of concrete piles, which is mainly suitable for land, and the rock layer is higher; the other is a cofferdam formed by locking steel pipe piles The connection is formed in the form of a mouth, which is mainly suitable for water and has a certain thickness of covering layer. However, in some construction situations, the geological conditions and the force of the weir body are relatively complex, and the cofferdam area has both land and water. In this case, a single form of cofferdam cannot meet the construction requirements, so that the cofferdam structure is not stable enough. Construction is difficult. [0003] In the related art, a combined cofferdam is provided, in wh...

Claims

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Application Information

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IPC IPC(8): G06F17/50E02D19/04
CPCE02D19/04G06F30/367
Inventor 潘燕
Owner 潘燕
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