Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Results of experimental drilling and blasting operations in preparing the rock foundation of the Krapivinskii hydroelectric station
Conclusions 1.Experimental drilling and blasting operations on preparation of the rock foundation of the Krapivinskii hydrostation showed the possibility of replacing shothole by blasthole charges with parameters calculated by a special method. 2.The suitability of the method of calculating the parameters of DBOs with reduced blasthole charges developed earlier by Gidrospetsproekt, which provides preservation of the foundations of important structures with a reduction of labor intensity and time of the works, was confirmed. The methods of investigation used (ultrasonic well logging, measurements of the rate of descent of the water level in boreholes) did not show disturbance of the foundation after the blasts. 3.An analysis of the results of the experimental blasts and also for a number of hydrotechnical construction objects made it possible to evaluate the characteristics of irregularities of foundations with blasting preparation and to establish their practically allowable values for use in specifications. 4.Rational parameters of blasting near the foundation of the Krapivinskii hydrostation were determined with consideration of differentiated requirements imposed on the degree of irregularities of different section of the foundation.
Results of experimental drilling and blasting operations in preparing the rock foundation of the Krapivinskii hydroelectric station
Conclusions 1.Experimental drilling and blasting operations on preparation of the rock foundation of the Krapivinskii hydrostation showed the possibility of replacing shothole by blasthole charges with parameters calculated by a special method. 2.The suitability of the method of calculating the parameters of DBOs with reduced blasthole charges developed earlier by Gidrospetsproekt, which provides preservation of the foundations of important structures with a reduction of labor intensity and time of the works, was confirmed. The methods of investigation used (ultrasonic well logging, measurements of the rate of descent of the water level in boreholes) did not show disturbance of the foundation after the blasts. 3.An analysis of the results of the experimental blasts and also for a number of hydrotechnical construction objects made it possible to evaluate the characteristics of irregularities of foundations with blasting preparation and to establish their practically allowable values for use in specifications. 4.Rational parameters of blasting near the foundation of the Krapivinskii hydrostation were determined with consideration of differentiated requirements imposed on the degree of irregularities of different section of the foundation.
Results of experimental drilling and blasting operations in preparing the rock foundation of the Krapivinskii hydroelectric station
Azarkovich, A. E. (Autor:in) / Yanovskii, V. N. (Autor:in)
1984
Aufsatz (Zeitschrift)
Englisch
BKL:
56.30
Wasserbau
Lokalklassifikation TIB:
770/6550/8000
| British Library Online Contents | 1996
Experience in preparing the rock foundation of the Dnestr hydroelectric station
| Online Contents | 1981