| 摘要 |
PCT No. PCT/GB90/00272 Sec. 371 Date Aug. 15, 1991 Sec. 102(e) Date Aug. 15, 1991 PCT Filed Feb. 21, 1990 PCT Pub. No. WO90/10113 PCT Pub. Date Sep. 7, 1990.An underwater soil retention and reinforcement structure comprises a sequence of synthetic buoyant fronds (11) arranged side-by-side to form a frond line. The frond line is folded back and forth to form an array of fronds, and the successive folded sections (14) of the frond line have aligned openings (20) threaded by at least one anchor line (19) for anchoring the array to the soil bed.
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