CHARACTERISTICS OF SHAPE VARIATION OF RIPPERTIP FROM FIELD TEST

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  • Characteristics of Shape Variation of R

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The characteristics of strength of rock mass for wear of rippertip are expressed precisely as "Index of rock mass strength for wear". The wear amount and the wear length of pointed end of tip increase approximately with linear relationship to the ripping operation time, and each slope varies respectively according to the index of rock mass. For the rock mass which both index of rock mass strength for wear and abrasive strength of rock are small, the wear of side parts of tip progresses more rapidly rather than that of pointed end of tip. On the other hand, for the rock mass which both index of rock mass strength for wear and abrasive strength of rock are large, the wear of pointed end of tip progresses more rapidly rather than that of side parts of tip.

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