| 摘要 |
<p>The elongated rectangular ground reinforcement plate (1) has metal beams (2) along the long sides, connected by zigzag metal strips (11) at 90 degrees to the plane of the ground and folded into zigzag shapes. The zigzag shapes have elongated generally straight portions alternating with sharp 180 degrees bends. Projections in the centers of the otherwise straight sections may touch and act as spacers. Pins and sockets (4) at the edges of the beams may be used to fasten them together.</p> |
