Self-adaptive cofferdam lake gradual collapse coupling prediction model

A predictive model and self-adaptive technology, which is applied in the field of hydraulic calculation and hydrology, can solve the problems of inconvenient estimation and difficult confirmation of breach erosion parameters, etc., and achieve the effect of rapid acquisition

Active Publication Date: 2019-09-20
BUREAU OF HYDROLOGY CHANGJIANG WATER RESOURCES COMMISSION
View PDF8 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an adaptive coupling prediction model for the gradual collapse of a barrier lake in view of the difficul

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Self-adaptive cofferdam lake gradual collapse coupling prediction model
  • Self-adaptive cofferdam lake gradual collapse coupling prediction model
  • Self-adaptive cofferdam lake gradual collapse coupling prediction model

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with examples, and the following examples are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0033] This example takes a dam-break flood of a dammed lake that occurred in the southwest mountainous area as an example. According to the field investigation, the volume above the water surface of the dammed body is about 3.1 million m 3 , the width of the weir crest pass is about 195m, the length is about 273m, the weir crest elevation is about 2966m, and the weir body is 58.24m above the water surface. Manual intervention measures are taken to excavate the drainage channel to reduce the flow elevation by 15 meters. It is necessary to predict the flood process of the barrier lake dam break under this working condition. The present invention adopts the attached figure 1 The adaptive barrier...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a self-adaptive cofferdam lake gradual collapse coupling prediction model which is characterized by comprising the following steps: fitting a cofferdam lake water level-reservoir capacity curve to obtain the total water volume W0 of a reservoir area before dam collapse; deciding a breach width bm and a breach depth hm; calculating a dam break maximum flow of the dam site section to obtain the reservoir capacity Wm corresponding to the break depth hm; calculating the average volume sand content percentage p; calculating the maximum water depth ratio [beta]m of the dam break position; calculating an expansion duration tau; calculating a real-time dam break flow process q(t), and calculating a drainage amount W(tau); checking whether the product is in an acceptable range; calculating duration T after the dam break flood peak; deducing a post-peak flow process; calculating the residual water quantity W(T) in front of the dam; checking whether the product is in an acceptable range; and integrating the obtained pre-peak and post-peak flow processes q(t). According to the method, the possible maximum flood peak flow can be obtained, the dam break flood process can be deduced together, the dam break flood flow process can be quickly obtained, and a reference is provided for front-line emergency rescue treatment.

Description

technical field [0001] The invention belongs to the interdisciplinary fields of hydrology and hydraulics calculation, and in particular relates to an adaptive coupling prediction model for the gradual collapse of a barrier lake, which is used for deriving the flow process of the flood flow of the barrier lake. Background technique [0002] Scholars at home and abroad have carried out a lot of dam break flood research work, and have proposed a series of dam break models, most of which are calculated and estimated by the gradual collapse model of earth-rock dams. Based on the water-sand theory, Xie Renzhi proposed a unified formula for the maximum peak flow of dam breaks , and analyzed the process of instantaneous collapse and gradual dam collapse, and some scholars conducted quantitative comparisons on the characteristics of the calculation formula of the breach flow and the key factors in the formula, and also summarized and compared the existing models. [0003] Xie Renzhi’...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06F17/50G06Q50/26
CPCG06Q50/265G06F30/20Y02A10/40
Inventor 徐高洪郭卫邵骏欧阳硕杜涛徐长江邴建平戴明龙张新田王正祥张晶邓鹏鑫王琨卜慧喻志强
Owner BUREAU OF HYDROLOGY CHANGJIANG WATER RESOURCES COMMISSION
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap