| 摘要 |
PCT No. PCT/FI85/00024 Sec. 371 Date Oct. 21, 1985 Sec. 102(e) Date Oct. 21, 1985 PCT Filed Mar. 8, 1985 PCT Pub. No. WO85/04214 PCT Pub. Date Sep. 26, 1985.The present invention concerns a rock cistern or tunnel. The inner surface of the wall structure of the rock cistern is a tightly sealing lining. The supporting layer consists of a steel-reinforced water-tight sprayed concrete layer. Between the blasted rock surface and steel-reinforced water-tight sprayed concrete layer there is a sprayed concrete layer permeable to water, serving as a groundwater-conducting layer. In the sprayed concrete layer permeable to water, subdrain pipes have been placed. The tightly sealing lining consists of plastic, steel, fibre concrete or equivalent. |
