Parameter measuring and early warning method for determining dangerous dam body safe reservoir water level

Abstract

The invention relates to the water conservancy project stability evaluation and monitoring early warning fields, in particular to a parameter measuring and early warning method for determining a dangerous dam body safe reservoir water level. The parameter measuring and early warning method for determining the dangerous dam body safe reservoir water level comprises a first step of laying out a dam deformation monitoring network, a displacement monitoring datum point and a working base point; a second step of laying out and installing monitoring equipment; a third step of real-time monitoring the dam reservoir water level and displacement and real-time processing the monitoring data; a fourth step of determining a dam deformation modulus parameter; a fifth step of building function relational expressions; a sixth step of determining a dam water level critical value; a seventh step of determining the dam running safe reservoir water level. By the method, the shortage and limitation of the traditional dam predication evaluation method are overcome to a certain extent; a significant application value in the dam stability evaluation and monitoring early warning fields is available.

Description

technical field [0001] The invention relates to the field of hydraulic engineering stability evaluation and monitoring and early warning, in particular to a method for measuring parameters and early warning for determining the water level of a dangerous dam safety reservoir. Background technique [0002] The number of dams in China ranks first in the world. However, China's dam failure rate is also among the highest in the world, far exceeding other countries in the world. Most of the dams in China were built in the 1950s to 1970s, and most of them are earth-rock dams with a service life of about 50 years. Moreover, the dams generally have problems such as low standards, low construction quality, and incomplete facilities. After 30 to 50 years of operation, the reservoir facilities are generally aging. These dams with aging characteristics such as deformation and cracks are called dangerous dams, which pose certain safety hazards. Building a dam can benefit mankind, but on...

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Problems solved by technology

If there is multicollinearity among the environmental variables of the regression model, it may cause incorrect estimation of the parameters of the regression model; the comprehensive evaluation analysis method is not perfect because the evaluation system is not perfect, and the factors affecting dam safety are not easy to determine. It is difficult to consider comprehensively. Through some calculation methods, only the influence degree and weight of some influencing factors can be considered quantitatively. The evaluation results are still not reliable enough, and the evaluation conclusions are somewhat unreasonable; The calculation results are related to the function model, unit division and selection of physical and mechanical parameters, and generally do not consider the influence of external random factors, so the calculation results of this method are for reference only

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