Determinação da equação de atenuação de vibrações gerada por desmontes de rocha

Abstract

In the present study is developed a seismographic data analyze in an effort to obtain an attenuation equation to use it in further detonations estimating the maximum weight of explosive per time to a known distance or the peak particle velocity created by a blast. It is iterant used in industrial practice to assure a well-controlled blast avoiding energy wastes and, therefore, reducing socio-environmental effects generated by blasting such as ultra-launches, terrain vibration, noise, dust and modifications in the properties of the surroundings. From statistical analysis of the given data (186 values), was created 2 equations (with 1/2 and 1/3 exponents) with a correlation coefficient (R2) equals to 0,802 and 0,8119 , respectively. Such equations estimates, satisfactory, 45% of the given measures. Furthermore, has been possible to point out possible errors during the execution of the blast and data collect, such as mistaken binding of the detonation lines and collect data spot, respectively.