Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 2010.03a
- /
- Pages.1140-1147
- /
- 2010
End bearing Behavior of Open-ended Steel Pipe Piles Resting on Harden Cement Milk
시멘트밀크 고결체 위에 강관말뚝 선단 매입된 말뚝거동
-
Park, Young-Ho
(Korea Expressway Co. Research Institution)
;
- Kim, Sung-Hwan (Director, Korea Expressway Co.) ;
-
Kim, Nag-Young
(KECRI)
;
- Kim, Hong-Jong (KECRI) ;
- Park, Yong-Seok (KECRI)
-
박영호
(한국도로공사 도로교통연구원)
;
- 김성환 (한국도로공사 기술본부) ;
-
김낙영
(한국도로공사 도로교통연구원)
;
- 김홍종 (한국도로공사 도로교통연구원) ;
- 박용석 (한국도로공사 도로교통연구원)
- Published : 2010.03.25
Abstract
To find the soil plug of steel piles shaped by jet grouting, 4 blocks of cement milk with cube of 1.2m were made. 4 open-ended steel piles on the blocks were rested. The inner end part of 2 the piles was not reinforced. Cement milk 65%(SIG-1) and 100%(RJP-1) were filled into the block and height of 4.2 times of inner the pile diameter respectively. And the other the piles were welded 2 steel ring. The filling of the cement milk was an equal method as before(SIG-2 and RJP-2). Also the strain gauges were installed and the static pile load tests were done at the piles all. As a result, list in great order for effect of soil plug was (1)SIG-1, (2)SIG-2, (3)RJP-1, (4)RJP-2. This is because of strength and filling height of cement milk. And the higher the strength is, the greater the confining coefficient is.