| 摘要 |
PROBLEM TO BE SOLVED: To provide a carbon stock method and wooden piles for carbon stock attaining a large quantity of long-term carbon stock and positively improving the ground. SOLUTION: In the carbon stock method, the wooden piles for carbon stock A, B, C, D or E provided with drain means 1, 1', 1", 6 are driven into the ground. The wooden piles for carbon stock are formed with drain ditches 1, 1', 1" in the side faces of logs. COPYRIGHT: (C)2007,JPO&INPIT
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