A risk control-based multi-period treatment method for large debris flow disasters

A risk control and debris flow technology, applied in data processing applications, instruments, calculations, etc., can solve the problems of poor disaster prevention benefits and failure to consider the evolution of debris flow disasters, etc., to reduce maintenance difficulty, reduce post-maintenance management work, and prolong the actual effect Effects on Sex and Lifespan

Active Publication Date: 2022-05-27
成都华建地质工程科技有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-period treatment method for super large debris flow disasters based on risk control, which solves the problem that the existing methods do not consider the evolution law of debris flow disasters, resulting in poor disaster prevention benefits, and comprehensively consider disaster evolution stages and risk prevention and control levels. Debris flow disaster control method implemented in multiple phases by adopting the optimal configuration of permanent works and temporary works

Method used

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  • A risk control-based multi-period treatment method for large debris flow disasters
  • A risk control-based multi-period treatment method for large debris flow disasters
  • A risk control-based multi-period treatment method for large debris flow disasters

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Embodiment approach

[0074] For permanent projects, according to the "Debris Flow Disaster Prevention and Control Engineering Exploration Specifications", "Debris Flow Disaster Prevention Engineering Design Specifications" and debris flow prevention and control technical guidelines (all are industry specifications promulgated by the state), combined with the governance objectives, determine the implementation of various types of engineering measures in stages. method, as follows:

[0075] (A) Blocking project: It is implemented in stages, and the prevention and control function of the project is adjusted by controlling the height of the dam.

[0076] The sand retaining dam is carried out in accordance with the above-mentioned specifications, and the construction is carried out in stages. During the period, the foundation is formed at one time, and the dam body has reserved space for heightening and connecting sections.

[0077] (B) Drainage and guidance project: adopt a duplex section, and adjust ...

Embodiment 1

[0086] Yongjiagou is located in Qingping Township, Mianzhu City, Deyang City. It is a tributary of the right bank of the Mianyuan River and belongs to the severely affected area of ​​the "5.12" earthquake. Since 2008, there have been many debris flow disasters in Yongjiagou, including large-scale debris flow disasters in 2011, 2012 and 2013, which seriously threatened the safety of residents of Qipan Village downstream of Mizokou and the river channel of Qingping River. Multi-phase governance methods for debris flow disasters to manage:

[0087] (1) Determine the development background and characteristic parameters of the Yongjiagou debris flow

[0088] According to the survey, mapping and calculation of characteristic values ​​(according to the aforementioned specifications), the peak flow of debris flow in Yongjiagou P=5% rainstorm frequency is 245m 3 / s, flush out 18.32×10 solid matter at a time 4 m 3 .

[0089] (2) Analysis of the provenance activity characteristics of...

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Abstract

The invention discloses a risk control-based multi-phase control method for extra-large debris flow disasters. The method includes: (1) judging the source activity mode and source category according to the deformation of the source; Determine the evolution stage of debris flow disasters based on the proportion of dynamic reserves in the total dynamic reserves; (3) Determine the importance level of protected objects, and determine the risk control cycle and governance objectives of debris flow disasters in combination with the evolution stages of debris flows; (4) According to the debris flow disaster (5) Determine the disaster prevention function F of temporary works according to the debris flow control method L and permanent engineering disaster prevention function F γ , and select the permanent works and temporary works types. The method of the present invention comprehensively considers the stage of disaster evolution and the level of risk prevention and control, and adopts a multi-stage implementation method of optimizing the configuration of permanent and temporary projects.

Description

technical field [0001] The invention relates to a mud-rock flow control method, in particular to a multi-phase control method for extra-large mud-rock flow disasters based on risk control. Background technique [0002] Affected by global climate change, extreme rainstorms occur frequently in the mountainous areas of southwest my country, and the scale and frequency of debris flow disasters in areas with strong tectonic activity are increasing. In the current technical specifications for debris flow prevention and control, under certain fortification standards, blocking, drainage or protection works are used for one-time treatment, and the evolution law of debris flow disasters is not considered. Standards, many prevention and control projects will lose their disaster prevention benefits or be destroyed in a short period of time. For example, Yangjiagou in Beichuan County, Wenjiagou and Zomalinggou in Mianzhu City, Gaojiagou and Qipangou in Wenchuan County, etc., the project...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q50/26G06Q10/06
CPCG06Q50/26G06Q10/0635
Inventor 黄海杨顺谢忠胜田尤
Owner 成都华建地质工程科技有限公司
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