Construction Outlook in Japan Construction Outlook in Japan Masaru Hoshiya Masaru Hoshiya Japanese Japanese Association of Micro-Piles( JAMP )
Development and Promotion of Development and Promotion of High Capacity Micro-Piles(HMP) High Capacity Micro-Piles(HMP) 1997.4 Institution of JAMP Pilot Test of Micro- Piles � ( Public Work Research Institute, PWRI ) 1998 Series of Studies on Construction Method � entrusted to Advanced Construction Technology Center(ACTC) 1999 Design and Construction Manual edited � HMP is applied for seismic retrofitting of Sashimi Bridge foundation. 2001 Design and Construction Manual for Rail Road Facilities edited � 2003 Design and Construction Manual for Nonexistent Structures edited � 2005 National Land Development Award received � 2007.6 10th Anniversary of JAMP celebrated � A commemorative Manual edited entitled Decade of High Capacity Micro Pile
30 100 the number of accumulation 90 the number of every year 25 80 21 Experience of 70 19 20 60 14 14 15 50 HMP 11 40 9 10 30 20 construction 4 5 2 10 0 0 in JAPAN 1999 2000 2001 2002 2003 2004 2005 2006 the number of every year the number of accumulation 10,000 35,000 Accumulation Total Length（ｍ） HMP Total Length Every year 30,000 7,786 8,000 6,586 25,000 6,000 20,000 （ｍ） 4,543 3,911 15,000 4,000 2,696 2,996 10,000 2,000 1,124 5,000 446 0 0 1999 2000 2001 2002 2003 2004 2005 2006 HMP Total Length Every year Accumulation Total Length
Construction Example(1) � 09/2006-10/2006 Foundation of � Total Pile Length 301m pedestrian bridge before construction after
Construction water service tube Example (2) Seismic Retrofitting of Existing Piles. Seismic Retrofitting of Bridge in water service tube pear construction
Construction Example (2) Seismic Retrofitting of Existing Piles. Seismic Retrofitting of Bridge in water service tube HMP HMP construction completion
Construction Example(3) Retrofitting of Foundation construction HMP construction completion Completion
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