Degree-day model based ice water debris flow clean water flow calculating method

A calculation method and technology of clean water flow, applied in the direction of calculation, special data processing applications, instruments, etc., can solve problems such as rough arguments and assumptions, unhelpful calculation accuracy, calculation methods, etc.

Inactive Publication Date: 2018-03-23
INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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Problems solved by technology

Although the arguments and assumptions of the compounding method are relatively rough, and the influence of solid phase substances on the confluence movement process after participating in the movement has not been considered, it is relatively concise and intuitive.
Since it is difficult to quantitative

Method used

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  • Degree-day model based ice water debris flow clean water flow calculating method
  • Degree-day model based ice water debris flow clean water flow calculating method
  • Degree-day model based ice water debris flow clean water flow calculating method

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Embodiment Construction

[0043] Below in conjunction with the examples, the specific implementation of the present invention will be further described in detail. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0044] The present invention: for the ice-cement stone flow ditch, its clear water flow includes two parts, the flood peak flow and the glacier meltwater flow produced by the rainstorm. Corresponding to the randomness of rainstorms, glacier ablation is relatively stable. Therefore, when calculating the flow rate of debris flow at different frequencies, the flow of clear water produced by different frequencies of rainfall is mainly considered, while the amount of glacier ablation is considered unchanged. Firstly, the degree-day model is used to establish the glacier ablation runoff model under no rainfall process, and the amount of glacier meltwater is calculated under the condition of no rainfall. And use t...

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Abstract

The invention relates to a degree-day model based ice water debris flow clean water flow calculating method. The method includes: using a degree-day model to establish a glacial ablation runoff modelin a rainfall-free process, and calculating the glacial melt water amount in a rainfall-free condition; adopting a small watershed rainstorm peak flow calculating method to calculate the clean water peak flow at different frequency rainstorm conditions; establishing a glacial runoff observation point, acquiring glacial runoff observation data, and using the glacial runoff observation data to calibrate a glacial ablation influence factor; and calculating the peak flow of a ice water debris flow trench according to the method of completing the square.

Description

technical field [0001] The invention relates to a method for calculating the clear water flow rate of ice, cement and stone flows based on a degree-day model. Background technique [0002] The research on the calculation method of debris flow flow began in the 1930s in the former Soviet Union, and was active in the 1940s and 1960s, and many calculation formulas were proposed. In the 1950s, our country adopted a large number of calculation methods of Soviet scholars to meet the urgent needs of road and railway construction. At that time, the method of matching and shape survey was generally used to estimate the peak flow, but these methods had large errors, and the parameters were improved by modifying the parameters. Some, but the calculation results still have a large deviation. In the 1970s, the Soviet Union and China proposed a method for calculating the cause of debris flow peak flow based on field observation data. This method is more practical, but the difficulty coe...

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Application Information

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IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 潘华利欧国强邓明枫郑志山
Owner INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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