Tailing pond numerical simulation and on-line monitoring integral emergency early-warning system

Abstract

The invention discloses a tailing pond numerical simulation and on-line monitoring integral emergency early-warning system. For a first time, fine weather forecast is introduced in the system. According to the invention, a hydro-meteorological forecasting system, a tailing pond numerical simulation technology, and an on-line monitoring system are coupled and comprehensively integrated, such that a complete tailing pond comprehensive emergency early-warning system is formed. The system provided by the invention is advantaged in that: according to the invention, a fine hydro-meteorological forecasting system and a hydro-meteorological model are constructed with the cooperation of a meteorological department; with fine advanced meteorological forecasting information, a tailing pond precipitation-runoff model, a runoff-pond water level model, and a pond water level-shed flow, seepage flow, dam-break model, operation state of the tailing pond cane be predicted in advance, such that enough time is preserved for emergency treatment; pond area precipitation, pond area water level and a dam operation state in real-time states can be monitored by the on-line monitoring system; the monitoring results can be used for checking and correcting the tailing pond advanced forecasting results; and the pond area precipitation, pond area water level and dam operation state can be rapidly and visually expressed by using a three-dimensional visualized model.

Description

technical field [0001] The invention relates to an emergency early warning system, in particular to an emergency early warning system integrating numerical simulation and online monitoring of a tailing pond. Background technique [0002] The catchment area of ​​domestic tailings ponds is generally less than 10km 2 , most of which are less than 3km 2 , such a small catchment area has no meteorological and hydrological measuring stations in the design of tailings ponds, which leads to two problems: 1) There is no reliable meteorological and hydrological data in the design of tailings ponds, and only by checking the local hydrological data Calculation Handbook. After the tailings pond is completed and put into use, there is no actual meteorological and hydrological data in the reservoir area to verify whether the original design data are reasonable and whether adjustments are needed. 2) The tailings pond does not have accurate meteorological and hydrological forecasts during...

AI Technical Summary

Problems solved by technology

[0002] The catchment area of ​​domestic tailings ponds is generally less than 10km 2 , most of which are less than 3km 2 , such a small catchment area has no meteorological and hydrological measuring stations in the design of tailings ponds, which leads to two problems: 1) There is no reliable meteorological and hydrological data in the design of tailings ponds, and only by checking the local hydrological data Calculation Manual

After the tailings pond is completed and put into use, there is no meteorological and hydrological data measured in the reservoir area to verify whether the original design data are reasonable and whether adjustments are needed

2) The tailings pond does not have accurate meteorological and hydrological forecasts during operation

The current meteorological and hydrological forecasts use the weather forecast data issued by provincial and municipal meteorological stations to manage tailings ponds. However, due to the small catchment area of ​​tailings ponds, the formation of flood peaks lasts for a short time and the capacity of flood control reservoirs is small, which easily leads to tailings pond operation. The medium risk is high, and the accuracy of this forecast is not enough. Either there will be more frequent warnings, which will cause tension and panic to the local government and the people; or there will be no warnings. When extreme weather disasters come, mine management personnel, local governments and the people Unprepared, causing significant loss of life and property

[0003] Due to historical reasons, the monitoring of tailings ponds that have been put into use in metal mines is in a very backward state, mainly manifested in: 1) Meteorological and hydrological observation stations are rarely built in the tailings pond area: it is impossible to obtain more real first-hand 2) The monitoring instruments are simple and outdated: the displacement observation of the dam body adopts buried prefabricated concrete piles, and the total station or theodolite is used for observation; the infiltration line observation adopts drilling and laying flower pipes Measuring the water level with a tape measure; the water level in the reservoir is observed by drawing a water level gauge on the flood discharge structure

In this way, the sensitivity and accuracy are difficult to guarantee

3) Manual measurement and manual reporting: The existing safety management of tailings ponds mainly relies on manual inspection, manual measurement, and manual reporting of observation results, resulting in large human errors, poor reliability, and poor effectiveness

[0004] Even if online monitoring is realized, it is not a complete decision-making system for the safe operation of tailings ponds

The reason is that the confluence of such a small catchment area as the tailings pond lasts very short (about 1 hour). Once heavy rainfall occurs, if the forecast cannot be made in advance, it will not be possible to leave enough time for emergency treatment.

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