The Lao government announced that the collapse of an auxiliary dam in a hydroelectric power plant that caused large-scale casualties in southern Laos in July last year, and the construction company SK Corp.'s claims have been disputed.

The Lao People's Democratic Republic of the Congo (KCNA) said on Tuesday that it was able to prevent the collapse of the auxiliary dam in Sephia-Sennnnoi hydroelectric power plant on July 23,

It is the conclusion that it is virtually talented.

The IEP pointed out that there was heavy rainfall for a few days before the collapse, but that the dam level did not reach the highest level when the collapse began, he said.

In the meantime, he explained that leaks occurred along fine tubes in the red soil, which is the foundation of the auxiliary dam, and that the internal erosion and weakening of the ground caused the whole collapse.

The IEP repeatedly emphasized that this phenomenon, called arc destruction, occurred during the process of filling the dam with water, not as a forceful collapse.

"We can not agree on this because it is merely an empirical reasoning lacking scientific grounds and data."

If the IEP failed to demonstrate the 'piping phenomenon' that caused water to the soil layer, and if the destruction of the arc caused the collapse, then there should have been a large amount of sediment discharge at the bottom of the auxiliary dam before the accident.

In addition, the Korean government investigators who participated as observers in the cause investigation and the world's leading engineering companies also said that they disagree with the IEP.

In particular, the Korean government 's investigation team emphasized that the IEP did not apply the provisions of the World' s Largest Dam Committee, judging the IEP as the cause of the piping phenomenon.

SK E & C said, "Organizations participating as observers are not able to determine the cause of the accident at the moment or pay attention to the landslide trail found in the lower part of the auxiliary dam.

This is the reason why the Lao government and SK E & C are facing such a sharp conflict that the cause and scope of the huge compensation for the damage caused by the collapse is greatly changed.