Durability evaluation depending on the insert size of conical Picks by the field test

In this study, the durability of conical pick cutter was compared and analyzed by preand post-test visual inspection, measurement of weight loss and wear volume through field test on two types of conical pick cutters applied to rotary drum cutter. In the visual inspection, it was found that only 9 inserts were lost in the slim type conical pick cutter. This result show that the thickness of the head cover surrounding a insert was important to maintain the insert during excavation. The weight loss and wear volume of the heavy type conical pick cutter were less than half that of the slim type. From these results, it can be confirmed that heavy type is more useful than slim type in hard rock. It should be noted that, when determining the wear loss of the conical pick cutter, the mutual comparison of the weight measurement and the wear volume measurement results may be different due to the unit weight of the material and the spalling caused by excavation.

keywords: 코니컬커터, 삽입재 크기, 마모, 중량손실, 마모부피, Conical picks, Insert size, Wear, Weight loss, Abrasion volume

참고문헌

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논문 상세

Vol.21 No.1

삽입재 크기에 따른 코니컬 커터의 현장내구성 평가 연구

Durability evaluation depending on the insert size of conical Picks by the field test

Abstract

참고문헌

(사)한국터널지하공간학회