INVESTIGATION OF NOISE LEVEL AND PENETRATION RATE OF PNEUMATIC

Decibel level of a pneumatic rock drill

Decibel level of a pneumatic rock drill

The results of the experimental study for the compressive strength and the abrasivity of the rock samples are given in Table 1. It is seen that, with increase in compressive strength abrasivity of rock samples also increases. This may be attributed to increase in the resistance of rocks to wear with increase in the. . Regression analysis is the statistical methodology for predicting values of one or more dependent variables from a collection of (independent) variables.. . The coefficient of correlation between the measured and predicted values is a good indicator to check the prediction performance of the model. In this study, values. [pdf]

Drilling rig machine for soil investigation

Drilling rig machine for soil investigation

Geotechnical drill rigs are specialized equipment for the rigorous demands of construction and geological projects. These rigs play a key role in geotechnical investigation, providing the capability to assess ground conditions. [pdf]

Low noise screw air compressor

Low noise screw air compressor

With dozens of highly rated air compressors to choose from, it was a challenge to select the top performers for our hands-on tests. We considered brand names to an extent—after all, manufacturers such as Ca. While a reciprocating air compressor is quiet, a rotary screw air compressor is more silent. This air compressor has two separate helical screws working in unison to get the job done. Note that the two screws do not come in contact with each other, making them quieter. [pdf]

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