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Debris flow channel siltation depth calculation method based on drilling data

A technology of depth calculation and drilling data, which is applied in calculation, data processing application, electrical digital data processing, etc., can solve the problem of inability to improve the control accuracy of debris flow geological disasters, disaster initiative, etc., and achieves easy and objective calculation results. , parameters to obtain easy effect

Active Publication Date: 2019-08-23
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0005] In order to solve the problems existing in the prior art, the present invention provides a method for calculating the sedimentation depth of debris flow channels based on drilling data, which solves the problem that the previous methods cannot improve the control accuracy of debris flow geological disasters and the initiative to deal with disasters

Method used

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  • Debris flow channel siltation depth calculation method based on drilling data
  • Debris flow channel siltation depth calculation method based on drilling data
  • Debris flow channel siltation depth calculation method based on drilling data

Examples

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Embodiment 1

[0048] Using the present invention to analyze the Gaojiagou in the Wenchuan strong earthquake area, and calculate the deposition depth at different positions of the debris flow channel:

[0049] Wenchuan County is located in the southeast of Aba Autonomous Prefecture in the Sichuan Basin, with a longitude and latitude of 30°45′-31°43′ north latitude and 102°51′-103°44′ east longitude, with a total area of ​​about 4084 square kilometers. The Longmen Mountains and Qionglai Mountains are well developed in the area, high in the northwest and low in the southeast, in a sloping shape, with undulating terrain and large height differences. It is a typical alpine and canyon terrain. In the area, there are the main stream of the Minjiang River, Zagunao River and Yuzixi River, which are tributaries of the Minjiang River. In the basin, Maowen fault and Beichuan-Yingxiu fault are developed.

[0050] Obtain the longitudinal gradient S of the debris flow channel in the Gaojiagou watershed th...

Embodiment 2

[0058] Adopt the present invention to analyze the Panda Ditch (Wolong) in the strong earthquake area of ​​Wenchuan, and calculate the sedimentation depth at different positions of the debris flow ditch:

[0059] Wenchuan County is located in the northwest of the Sichuan Basin, in the southeast of Aba Tibetan Autonomous Prefecture, 146km from the provincial capital Chengdu in the south, and 246km from the state capital of Malkang in the north. The county is 84km wide from east to west, 105km long from north to south, with a total area of ​​4084km2. It is bounded between 30°45′37″~31°43′10″ north latitude and 102°51′46″~103°44′37″ east longitude. Wolong Special Administrative Region is located in the southwest corner of Wenchuan County, bordering Baoxing County to the west, Li County to the north, Lushan and Dayi to the south, Caopo Township to the northeast, Yingxiu Township to the east, and Sanjiang Township to the southeast. Wolong Town now has convenient transportation. Pro...

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Abstract

The invention discloses a debris flow channel siltation depth calculation method based on drilling data, which comprises the following steps: S1, through analysis of regional geology, earthquakes anddrilling data, screening a drainage basin with geological conditions as an actual geological model, and quantitatively characterizing influence factors for controlling the debris flow channel siltation depth in the actual geological model; s2, based on the statistical sample data, establishing a quantitative relation between the sediment depth of the debris flow channel and the width of the debrisflow channel and the longitudinal slope of the channel, and analyzing the correlation; s3, screening abnormal points before the established calculation model, screening special samples such as drilling position offset debris flow channels, channel opening accumulation areas and the channel width abrupt change out, and completing sample data screening. The method solves the problem that the control precision of debris flow geological disasters and the initiative to cope with disasters cannot be improved by the conventional method.

Description

technical field [0001] The invention relates to the field of geological disaster prevention and control engineering, in particular to a method for calculating the deposition depth of debris flow channels based on drilling data. Background technique [0002] After the "5.12" Wenchuan Earthquake, the critical rainfall intensity that induced geological disasters of landslides, landslides, and debris flows was greatly reduced, resulting in more frequent geological disasters of landslides and landslides, and a large number of sources accumulated in the trenches of the debris flow basin, which intensified the activities of debris flows. Debris flows mainly develop on mountain slopes or in valleys, and are composed of a large amount of sediment, stones and water, and are a complex solid-liquid two-phase fluid. The interaction of solids and fluids not only makes the flow of matter physically distinguishable, but also endows them with unique destructive forces. Debris flow is one of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06Q10/04G06Q50/26
CPCG06Q10/04G06Q50/26G06F30/00
Inventor 唐川罗玉婷龚凌枫李宁贴宇史青云
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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