Nugzar Kvashilava

In the work is purpose debris flow against stepped barrage, on which is implemented theoretical

research for assessment of debris flow influence.

As a result of calculation, in the condition of concrete assumtions, has been established number value of operating loads on the truneated half cone-like structure elements of the construction during linkage debris flow influence.

The results of the above calculations give basis that purposed construction consider as effective debris flow against construction.

Key words: debris flow, barrage, surrounded by flow, through coefficient

In the work is given results of the chemical characteristics research of the well water used for drinking by rural population on the Colchis lowland, which seems to be well water chemical pollution cases particularly, there are detected nitrite importance value in 10 from 14 water samples, also fixed cases of pollution by phosphate and by iron, that is possible become base of many diseases create and distribution in the population.

To accomplish this is necessary wider scale and long complex research to precise quality of well water used for drinking by rural population of the seven municipalities of the Colchis lowland.

Key words: drinking water, pollution, well water, quality

In the article is determined the maximum discharge of the possibility debris flow in the river Jokhtaniskhevi basin with various percentage in insurance. Also is purposed pass through type debris flow against construction built on the surrounded principle, on which has been implemented theoretical research for evaluate possibility debris flow influence in the river Jokhtaniskhevi basin.

As a result of our implemented calculation has been established, that during influence of possibility debris flow on the  construction in the river Jokhtaniskhevi basin, number value of the loading at the cylinder shape elements of construction, that gives bases, that purposed construction considered as a effective debris flow against construction.

Key words: soil erosion, landslide, debris flow, ecological risk

In the article is considred stability of the landslide dangerous slope existing on the left side of river  Jokhtaniskhevi. It has been calculated critical values of slope thick z as, „dry“ ground, also soil ground lay saturated with water, which overdose causes kick start of slope.

As the result of research has been determimate, that water saturation of slope decrease of critical angle approximately 10⁰ ÷ 35⁰ (Occurring slope failures).

To accomplish this, research slope is slope existing in the marginal condition and in case of intensive rains is high possibility kick start of slope and suiable receive disaster results.

Key words: ecological safety, critical value, “dry ground”, slope failures, saturated soil-ground with water

In the article is purposed debris flow against stepped barrage containing semi cylinder shape elements and the theoretical researches conducted to assessment debris flow influence on it. In the conditions of the specific assumptions it has been found number values of actions loads at the semi cylinder shape elements of the construction at the influrmce of debris flow.

The results of the calculating gives basis that proposed construction consider as the effective debris flow against construction.

Key words: debris flow, barrage, surrounded by flow, through coefficient

In the article is presented the pass through type debris flow against construction, builts at the surrounded by the flow principle, has been implemented theoretical researches for evaluation debris flow influence on that. As a result of our implemented calculation, in a condition of specific access, established, a numerical value of current loads on the cylinder form elements at the debris flow impact on the link debris flow. Results of the above calculation provide the basis for considering this construction potentially debris flow against construction.

Key words: construction, debris flow, theoretical calculation.