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Çѱ¹Áö¹Ý°øÇÐȸ / v.27, no.1, 2011³â, pp.77-86
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Á¤µ¿Àû ÄܰüÀÔ½ÇÇè ÀåºñÀÇ °³¹ß°ú °ËÁõ
( Development and Verification of Static-Dynamic Cone Penetrometer ) |
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| The advanced geotechnical information has been required to determine the accurate design parameters for complex construction. However, the Standard Penetration Test (SPT), which has low reliability, has been used to estimate the subsurface condition in the field. The objective of this paper is development and application of the Static-Dynamic penetrometer, which detects the resistances in soft clay, sand and rock. The energy losses according to the rod connection methods (perfect or non-perfect connection, and number rods) are experimentally evaluated. The reflection and transmission ratios are used to investigate the energy loss by a simulation. The static-dynamic cone penetrometer, in which the accelerometers and strain gauges are installed on the cone tip and the rod head, is used to estimate the energy loss during penetration by impacts. The experimental and simulation studies show that the transferred energy through rods with non-perfect connection dramatically decreases. Furthermore, the transferred energy on the rod head is not the same as that on the cone tip. This study demonstrates that the energy loss should be evaluated on the cone tip. |
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| Ű¿öµå |
| Energy loss;Reflection;Rod connection;Transmission; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.27, no.1, 2011³â, pp.77-86
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201115537946598)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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