full2010.pdf - page 228

190
O23
°· š›·¡¨ °Š¤´˜·®· œ‡µ¦r°Áœ˜˜n°°´ ˜¦µ„µ¦Á‹µ³Â„¦³Âš„
The Carbonate Rock Properties Affecting the Penetration Rate of Percussion Drill
ª·´¥ œ„„oª1 —œ»¡¨ ˜´œœÃ¥£µ2* ¨³ª·¬–» ¦µÁ¡È¦3
Wichai Nogkeaw1 Danupon Tonnayopas2* Vishnu Rachpech 3
š‡´—¥n °
„µ¦«¹„¬µ°´˜¦µ„µ¦Á‹µ³Â„¦³Âš„Äœ„µ¦Á‹µ³¦¼¦³Á·—Á®¤º°Š®·œ‡µ¦r °Áœ˜£µ‡Ä˜ož¦³Áš«Åš¥ °´˜¦µ
„µ¦Á‹µ³µ¤µ¦™«¹„¬µÅ—o‹µ„„µ¦Á‹µ³‹¦· Š ˜´ª°¥nµŠ¤ª¨¦ª¤®·œ‡µ¦r°Áœ˜š—°¤´ ˜·šµŠ„µ¥£µ¡Â¨³Á·Š„¨
°´˜¦µ„µ¦Á‹µ³®µ‡ªµ¤´ ¤¡´œ›r„´¤´˜·°Š¤ª¨¦ª¤ ¡ªnµ —´œ¸ „ε¨´ŠÂ¦Š„—‹»— „µ¦¹ „®¦°Â¨°Â°ŠÁ‹¨¸
„µ¦—¼—Ž¹¤œÊÎ µ ¨³‡ªµ¤Â Ȋª·„Á„°¦r —Š‡ªµ¤´¤¡´œ›r š¸É—¸„´°´ ˜¦µ„µ¦Á‹µ³ Ĝ –³š¸É „µ¦„¦³Âš„ ‡ªµ¤
™nªŠ‹ÎµÁ¡µ³ ¨³‡ªµ¤Â È Š„¦³—°œ‡o°œ¤· —˜r—Š‡ªµ¤´¤¡´œ›r¡°Äo„´°´˜¦µ„µ¦Á‹µ³ ‡ªµ¤´¤¡´œ›r µ¤µ¦™
„¦³‹µ¥°°„Áž}œ®¨µ¥¤„µ¦ µ¤µ¦™ÄoÁž}œÁ‡¦ºÉ°Š¤º°šÎµŠµœ£µ‡œµ¤Îµ®¦´‡µ—„µ¦°´˜¦µ„µ¦Á‹µ³ „µ¦ªµŠÂŸœ
¨³°°„¦¼Á‹µ³¦³Á·—Äœ„µ¦šÎµÁ®¤º°Š®·œ˜n°Åž
‡ÎµÎµ‡´ : ®·œ‡µ¦r °Áœ˜¤´˜·®· œ„µ¦Á‹µ³Â„¦³Âš„ °´˜¦µ„µ¦Á‹µ³
Abstract
In this study, percussion drills for blasting holes were investigated in carbonate rock quarries in Southern
Thailand. The net penetration rates of the drillings were calculated from the performance measurements. The
carbonate rock samples were determined physical and mechanical properties. The penetration rates were correlated
with the rock properties. The point load strength index, Los Angeles abrasion, water absorption and Vickers
hardness value exhibit strong correlations with the penetration rate. Fair correlations between the penetration rates
and impact value, specific gravity and Schmidt hammer hardness were obtained.
1œ· ·˜ž¦·µÃš £µ‡ª·µª·«ª„¦¦¤Á®¤º°ŠÂ¦n¨³ª´ —» ‡–³ª·«ª„¦¦¤«µ˜¦r ¤®µª·š¥µ¨´¥Š ¨µœ‡¦·œš¦r ®µ—Ä®n 90112
MS Student, Dept. of Mining and Materials Engineering, Faculty of Engineering, Price of Songkla University, Hat Yai, 90112
2 ¦°Š«µ˜¦µ‹µ¦¥r —¦. £µ‡ª·µª· «ª„¦¦¤Á®¤º°ŠÂ¦n¨³ª´ —» ‡–³ª·«ª„¦¦¤«µ˜¦r ¤®µª·š¥µ¨´¥Š ¨µœ‡¦· œš¦r ®µ—Ä®n 90112
Assoc.Prof.Dr., Dept. of Mining and Materials Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, 90112.
Corresponding author : Ú¦«´¡šr 0 7421 2897 ˜n ° 7318 E-mail:danupon.t@psu.ac.th
3°µ‹µ¦¥r —¦. £µ‡ª·µª· «ª„¦¦¤Á®¤º°ŠÂ¦n¨³ª´ —» ‡–³ª·«ª„¦¦¤«µ˜¦r ¤®µª·š¥µ¨´¥Š ¨µœ‡¦· œš¦r 90112
Dr., Dept. of Mining and Materials Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, 90112