加砂水刀钻切岩石行为探讨.pdfVIP

國立臺灣大學「台大工程」學刊 第八十八期 民國九十二年六月 第 109–122 頁 109 Bulletin of the College of Engineering, N.T.U., No. 88, June 2003, pp. 109–122 加砂水刀鑽切岩石行為探討 A STUDY OF ROCKS DRILLING AND CUTTING WITH ABRASIVE * ** † 鄭 品 聰 黃 燦 輝 鄭 富 書 WATERJETS Piin-Tsung Cheng Tsau-Hwei Huang Fu-Shu Jeng *博士班研究生 **教授 †副教授 國立台灣大學土木工程學系 *Graduate student **Professor †Associate Professor Department of Civil Engineering, National Taiwan University, Taipei, Taiwan, 10617, R.O.C. Abstract This paper studies the behavior of rocks drilled and cuted by abrasive waterjets to understand the mechanism of fracture and improve the efficiency of application. A series of laboratory tests with various rocks samples, jet pressures, orifices, mixing tubes and operation conditions (included abrasive properties) have been carried out. In order to investigate the factors affecting the fractured types, 本文旨在運用加砂水刀進行一系列鑽切花崗岩及大理 visual inspection and microscope examining are conducted 岩之室內實驗，以探討其鑽切能力之行為與影響因素。經 on fracturing surfaces of various rocks cut by different jet 實驗成果顯示，鑽切能力之主要影響參數為：水刀壓力、 conditions. The results show that pump pressure, orifice, 流量、施打時間或橫移速率、切槽道數及磨粒