| 摘要 |
<p>The hydraulic gallery support system, esp. in working areas, comprises frames with end prop head bearings for hydraulic props., on their caps. The props are supported in foot bearings on floor sills. The plate-shaped caps (18) have at least one hinge connection (21) at each end, for detachable fitting of side caps (22). They also have a series of prop head bearings at each end, mutually offset along the gallery axis. They may also have a prop head bearing, or row of these, in the central part. Caps and floor sills may be identical.</p> |
