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A Method for Calculating the Elastic Modulus of the Buffer Layer by the Evenness of the Buffer Layer

A technology of elastic modulus and buffer layer, which is applied in the field of rockfall prevention and control projects and collapses, can solve the problems of poor applicability of disaster prevention and mitigation, and the inapplicability of thick rock buffer layers, etc., achieve good practical application significance, and the calculation results are accurate and reliable. The effect of instruction

Active Publication Date: 2021-01-12
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, because the influence of the uniformity of tight sandstone reservoir rocks on the elastic modulus is not considered, its calculation method is not suitable for the actual calculation of large-scale buffer layers of coarse rocks in the field, and is suitable for disaster prevention and mitigation of landslides and rockfalls. poor

Method used

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  • A Method for Calculating the Elastic Modulus of the Buffer Layer by the Evenness of the Buffer Layer
  • A Method for Calculating the Elastic Modulus of the Buffer Layer by the Evenness of the Buffer Layer
  • A Method for Calculating the Elastic Modulus of the Buffer Layer by the Evenness of the Buffer Layer

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Embodiment 1

[0034] A method for calculating the elastic modulus of the buffer layer by the uniformity of the buffer layer, comprising the following steps:

[0035] a. Calculate and obtain the characteristic parameters of the particle size of the soil-rock buffer layer, including the median particle size D of the soil-rock particle, the unevenness coefficient Cu of the soil-rock particle, and the compactness S of the buffer layer of the soil-rock. % of particle size, unit mm; soil-rock particle unevenness coefficient Cu is calculated by formula 1; soil-rock buffer layer compactness S includes three levels, loose level, dense level and compact level;

[0036] Cu=D 60 / D 10 Formula 1

[0037] In the formula, D 60 is the particle size of 60% by weight of soil and rock particles, in mm; D 10 It is the particle size of 10% by weight of soil and rock particles, in mm;

[0038] b. Determine the type of soil and rock according to the median particle size D of the soil and rock, and calculate...

Embodiment 2

[0057] A method for calculating the elastic modulus of the buffer layer by the uniformity of the buffer layer, comprising the following steps:

[0058] a. Calculate and obtain the characteristic parameters of the particle size of the soil-rock buffer layer, including the median particle size D of the soil-rock particle, the unevenness coefficient Cu of the soil-rock particle, and the compactness S of the buffer layer of the soil-rock. % of particle size, unit mm; soil-rock particle unevenness coefficient Cu is calculated by formula 1; soil-rock buffer layer compactness S includes three levels, loose level, dense level and compact level;

[0059] Cu=D 60 / D 10 Formula 1

[0060] In the formula, D 60 is the particle size of 60% by weight of soil and rock particles, in mm; D 10 It is the particle size of 10% by weight of soil and rock particles, in mm;

[0061] b. Determine the type of soil and rock according to the median particle size D of the soil and rock, and calculate...

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Abstract

The invention discloses a method for calculating elasticity modulus of a buffer layer through uniformity of the buffer layer. The method is characterized by comprising the following steps: a, calculating to obtain soil and stone buffer layer particle diameter and particle characteristic parameters comprising soil and stone mid-value particle diameter D, soil and stone particle nonuniform coefficient Cu and soil and stone buffer layer compactness S, wherein the soil and stone mid-value particle diameter D relates to particle diameter with the weight percentage of 50 percent in soil and stone particles and the unit is mm, the stone particle nonuniform coefficient Cu is calculated through a formula 1, and the soil and stone buffer layer compactness S comprises three levels, namely a loose level, a dense level and a compact level; and b, determining the soil and stone type according to the soil and stone mid-value particle diameter D and calculating the elasticity modulus M of the soil andstone. The influence on the elasticity modulus by the uniformity of the soil and stone is taken into full consideration; and the calculation method is suitable for actual calculation of a field large-size rough stone buffer layer, is accurate and reliable in calculation result, and has higher disaster-preventing applicability on disaster prevention and reduction of collapse and rockfall.

Description

technical field [0001] The invention relates to the field of collapse and rockfall prevention engineering, in particular to a method for calculating the elastic modulus of a buffer layer through the uniformity of the buffer layer. Background technique [0002] Collapse and rockfall are natural phenomena that occur in mountainous areas or on road slopes. [0003] After landslides and rockfalls occur, huge rocks roll down the hillside or the roadside, causing great damage to nearby residential buildings, factories and other construction facilities, or roads. In order to reduce the influence of the impact force, it is an economical and effective measure to take effective protection of earth-rock buffer layer. The most economical and applicable buffer layer is composed of stones, sand, soil and other materials, and is composed of one or more of them. Therefore, the particle size of different soil-rock buffer layers has different buffering effects, and the buffering effect can b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/24G06F30/20
CPCG01N33/24G06F30/20
Inventor 余斌赵怀宝常鸣
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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