What solutions proposed foreign and Romanian experts present at Praid, to reduce the “risk of sudden collapse”
Foreign and Romanian experts present in Praid, who support the activity of the authorities in the crisis situation caused by the flood of saline, proposed the execution of two barriers on the Corund stream, to reduce the water flow, the measures, among others, decrease the risk of sudden collapse in the area.
Authorities are looking for solutions for the situation at Praid Photo Alex Nicodim
According to an information transmitted by the Institution of the Prefect Harghita after the operative meeting on Sunday, the proposed measures were accepted by the National Apele Administration and Salrom, one of the barring works being carried out on Saturday, and the other to be completed on Sunday, according to Agerpres.
“Following the analyzes carried out, foreign and Romanian experts proposed the execution of two barriers on the Corund stream (two thresholds), with a maximum height of 40 centimeters, proposal accepted by ANAR and Salrom. The estimated effect of these measures is to reduce the speed of water and to maintain a level in the area and to reduce the risk of sudden collapse in the area, As well as a possible reduction of salinity downstream, respectively it will increase the resistance to flow and reduce turbidity and erosion downstream.
The first section, positioned downstream by the provisional deviation channel for the installation of the corrugated tubes, artificially created by the builder contracted by Salrom, will be done by his care and is upstream of the access bridge To the affected mining platform, at a distance of 195 meters, to be executed on June 8. The second section, located upstream of the same bridge, at a distance of about 75 meters, slightly downstream from the treatment station, will be carried out by ANAR care, made on June 7 “, It is shown in informing the Institution of the Prefect Harghita.
At the same time, the experts “They advanced with the clarification of the volumes of the mines Iosif and Dozsa ”and Sunday “They will initiate calculation methods and possible collapse scenarios, to be provided new data on any new areas that can be affected.”
Information are also presented the activities carried out by Salrom and the builder contracted for the deviation of the course of the Corund stream.
It is also stated that the salinity of the water in the mine is increasing at the coastal gallery, from 280.78 gr/l to 287.05 gr/l, and at the mine Iosif – from 286.62 gr/l to 288.2 gr (Metan – no) at the coastal gallery is decreasing, from 0.37 vol% to 0.3 vol%.
According to the quoted source, the Harghita Prefecture also presented the results of the quantitative monitoring of the Corund stream, which shows that the debts and levels are declining in Ocna de Jos and Praid. According to the information, the salinity is high, but stabilized on the Corund stream and on the Târnava Mică river, “Confirming the efficiency of interception measures” And it is emphasized that after the completion of the two reassurance thresholds, the improvement of the water quality parameters in downstairs is expected.
The forecast for the next few days does not indicate critical outputs of the flow, but they require maintaining the supervision.
