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Herringbone mud-rock flow water and stone separating system designing method

A technology of water and stone separation and system design, which is applied in the fields of water conservancy engineering and debris flow prevention and control, and can solve problems such as inability to design more accurately.

Inactive Publication Date: 2014-04-02
INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to address the deficiencies of the prior art, to provide a design method for the fish ridge type debris flow, water and stone separation system, and to solve the technical problem that it cannot be designed more accurately in engineering design

Method used

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  • Herringbone mud-rock flow water and stone separating system designing method
  • Herringbone mud-rock flow water and stone separating system designing method
  • Herringbone mud-rock flow water and stone separating system designing method

Examples

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Embodiment 1

[0086] Such as figure 1 , design a fish ridge type debris flow water stone separation system for a certain debris flow ditch with the preferred method of the present invention.

[0087] 1. Span B design of water-rock separation grid

[0088] Step S1, parameter determination

[0089] According to the debris flow engineering survey and design specifications and tests, the basic parameters are determined, including: channel bottom width B′=40m, natural angle of repose of debris flow solid particles Design flow Q of water-stone separation system c =500m 3 / s, grid span correction factor λ 1 =1.6 (determined according to the design flow rate of debris flow), the width of the diversion dam outlet b=10m, and the discharge coefficient C=0.6. Will Q c =500m 3 / s, C=0.6, b=10m are substituted into the calculation formula of overflow depth h in reference 1, and get

[0090] h = ( 3 ...

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Abstract

The invention discloses a herringbone mud-rock flow water and stone separating system designing method. Structure of a herringbone mud-rock flow water and stone separating system is disclosed in the prior art, and no designing method of the system is disclosed yet, so that designing and application of the prevention and control system are limited. In engineering design of the herringbone mud-rock flow water and stone separating system, key parameters include span B of a water-stone separation grating, height H of the water-stone separation grating and length L of the water-stone separation grating. On the basis of basic parameters determined according to on-site inspection, experiments and mud-rock flow engineering investigation and design standards, a method for designing the span B, the height H and the length L of the water-stone separation grating in the engineering design method of the herringbone mud-rock flow water and stone separating system is provided. The herringbone mud-rock flow water and stone separating system designing method solves the technical problem that the herringbone mud-rock flow water and stone separating system cannot be accurately designed yet in engineering design, and is reliable in principle, scientific, simple and convenient in calculation process and adaptive to engineering construction requirements.

Description

technical field [0001] The invention relates to an engineering design method, in particular to a design method of a fish-ridge type debris flow water-rock separation system, and belongs to the field of debris flow prevention and control and the field of water conservancy engineering. Background technique [0002] Debris flow is a solid-liquid two-phase flow formed on mountain slopes or channels containing water, stones and fine particles. Due to the sudden outbreak of mudslides and the great destructive power of carrying a large number of stones, they often cause major disasters. Debris flow engineering prevention and control is one of the fastest and most effective means of disaster reduction. [0003] The applicant disclosed a fish ridge type debris flow water stone separation system in a Chinese utility model patent with the patent number ZL201120352219.X, the publication number 202298575U, and the name of a debris flow water stone separation system. The whole system is...

Claims

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Application Information

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IPC IPC(8): E02B8/02
Inventor 谢涛韦方强杨红娟谢湘平代志强姜震
Owner INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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