Extra-large debris flow disaster multi-period treatment method based on risk control

A risk control and debris flow technology, applied in data processing applications, instruments, resources, etc., can solve problems such as poor disaster prevention benefits, failure to consider the evolution law of debris flow disasters, etc., to reduce maintenance difficulty, ease later maintenance management work, and reduce funds. effect of input

Active Publication Date: 2019-11-12
成都华建地质工程科技有限公司
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  • Abstract
  • Description
  • Claims
  • 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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  • Extra-large debris flow disaster multi-period treatment method based on risk control
  • Extra-large debris flow disaster multi-period treatment method based on risk control
  • Extra-large debris flow disaster multi-period treatment method based on risk control

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Embodiment approach

[0074] For permanent projects, according to the "Debris Flow Disaster Prevention Engineering Exploration Specification", "Debris Flow Disaster Prevention Engineering Design Specification" and debris flow prevention technical guidelines (both industry standards promulgated by the state), combined with governance objectives, determine the phased implementation of various types of engineering measures method, as follows:

[0075] (A) Blocking works: implement in stages, and adjust the preventive function of the project by controlling the height of the dam.

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

[0077] (B) Drainage project: Take a compound section, and adjust the prevention and control function through the width and height of the section...

Embodiment 1

[0086] Yongjiagou is located in Qingping Township, Mianzhu City, Deyang City. It is a tributary on the right bank of Mianyuan River and belongs to the "5.12" earthquake disaster area. Since 2008, there have been many mudslide disasters in Yongjiagou. Among them, large-scale mudslide disasters broke out in 2011, 2012 and 2013, which seriously threatened the residents of Qipan Village downstream of the ditch mouth and the safety of the Qingping River. Debris flow disaster multi-phase treatment method for treatment:

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

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

[0089] (2) Analysis of source activity characteristics of debris flow ditch

[0090] Accord...

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Abstract

The invention discloses an extra-large debris flow disaster multi-period treatment method based on risk control. The method comprises the following steps: (1) judging an object source activity mode and an object source category according to an object source deformation condition; (2) determining the evolution stage of the debris flow disaster according to the proportions of the dynamic reserves ofthe material sources of different material sources in the total dynamic reserves; (3) determining the importance level of a protected object, and determining a debris flow disaster risk control period and a treatment target in combination with the evolution stage of debris flow; (4) determining a debris flow treatment method according to the debris flow disaster characteristics and the treatmenttarget; and (5) determining distribution of a temporary engineering disaster prevention function FL and a permanent engineering disaster prevention function F[gamma] according to a debris flow treatment method, and selecting permanent engineering and temporary engineering types. According to the method, the disaster evolution stage and the risk prevention and control level are comprehensively considered, and a permanent and temporary engineering optimal configuration multi-stage implementation method is adopted.

Description

technical field [0001] The invention relates to a mud-rock flow control method, in particular to a risk control-based multi-stage mud-rock flow disaster control method. 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 activities are increasing. Traditional debris flow prevention and control techniques have many shortcomings in dealing with extremely large debris flow disasters under the new situation. In the current technical specifications for the prevention and control of debris flows, under certain fortification standards, barriers, drainage or protection works are used for one-time treatment, without considering the evolution law of debris flow disasters. Many prevention and control projects lost their disaster prevention benefits or were damaged in a short period of time. For example, Ya...

Claims

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Application Information

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Patent Type & Authority Applications(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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