发明名称 |
PERFECCIONAMIENTOS EN ESCUDOS DE CONTENCION PARA ABRIR TUNE-LES, GALERIAS U OTRAS CAVIDADES. |
摘要 |
<p>A shield for tunnel driving operations comprises a plurality of elongate drive members supporting the tunnel wall at a forward region and carried by a frame. Rams serve to advance the members individually, or in groups, and to shift up the frame. Each drive member has a rear extension plate or tail extending rearwardly of the tunnel driving direction. Lining elements are assembled within a chamber defined by the tails and a space between the assembled elements and the inner surfaces of the tails is filled as the tunnel advances to create a permanent lining. The space is sealed off with the aid of seals effective between the longitudinal edges of the tails and with a radial seal or the like between the lining elements and the tails.</p> |
申请公布号 |
ES454075(A1) |
申请公布日期 |
1977.12.01 |
申请号 |
ES19750004540 |
申请日期 |
1976.12.09 |
申请人 |
GEWERKSCHAFT EISENHUTTE WESTFALIA |
发明人 |
|
分类号 |
E02D5/02;E21D9/06;E21D11/38;(IPC1-7):21D/ |
主分类号 |
E02D5/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|