A parametric description of a blasting process is proposed on the basis of analysis and codification of data on experimental detonations simulating planned blasts.Construction of the Kambarata HPP-2 was renewed in 2008. Based on a plan, which had been tabled in the late 1980s, and which is now completed, the dam for the powerhouse is to be constructed by blasting, as a result of which a rock mass will be crushed and thrown-off into the channel of the Naryn River.Use of large-scale blasting is fraught with risks of earthquake-induced effects for entities within the construction site of the HPP, which is situated 3.5 km from the village of Shopokovo. In addition to the potential danger, and the seismic energy released by the blasting, it is possible, in principle, to speak of the problem involving its activation of natural seismicity in the area surrounding the HPP. In contrast to the hypothesis relative to the dangerous level of seismicity that is brought about, including by blasting, the reality of which (hypothesis) raises doubts and should, in any case, be regulated as a function of the intensity of the blast effect, the natural seismicity of the region is an imperatively significant condition for reliability assurance of entities at the HPP.The set of problems indicated renders their analysis and a prognostic assessment of factors having an effect during the blasting and in the period of construction requisite.Blast-induced seismic effect. To form the body of the dam at its site on the right bank of the Naryn River, it is planned to detonate two explosive charges weighing 700 and 2160 tons with a 2-sec delay between the detonations. The charges are to be placed in drifts subparallel to the strike of the inclined daylight surface such that the line of least resistance (normal to this surface -LLR) for detonation of the basic charge (2160 tons) exceeds 100 m. The required volume of rock mass that falls into the channel is ensured by the design values for the specific consumption of explosive, and the functions of the blast factor for the basic charge are approximately q, f(n) = 1.High-liability structures of the HPP (situated at epicentral distances of 350 -1000 m), and the residential and agricultural buildings in the village of Shopokovo are preservable entities with respect to which possible losses due to the seismic effect of the blast must be eliminated or evaluated.The JSC "SPII "Gidrospetsproekt," which is developing the plan for blasting, has carried out seismic investigations during test detonations under field conditions simulating the full-scale planned blasting to substantiate the reliability of its safety in 2008. Specialists of the Institute of Seismology at the National Academy of Sciences of the Kyrgyz Republic were invited to take seismic measurements on their own recording equipment.The methodical and technical solutions adopted fulfilled two basic requirements for proper utilization of results derived from the test detonations to predict the seismic effect of the planned blasts:-similarity bet...