公开(公告)号：US5235788A

公开(公告)日：1993-08-17

申请号：US564068

申请日：1990-08-08

申请人： Lembit Maimets

发明人： Lembit Maimets

IPC分类号： B23P21/00 ,  B64G1/10 ,  B64G1/12 ,  B64G4/00 ,  B65H75/04 ,  B65H75/22 ,  E04B1/343

CPC分类号： B64G4/00 ,  B65H75/04 ,  Y10S428/906 ,  Y10T29/49863

摘要： A method and apparatus for assembling an enclosure, in which the assembly includes a coil of material adapted to be uncoiled to an assembling position. The material can be prestressed to become at least transversely curved in the uncoiled assembling position. In a particular embodiment, the material is also prestressed to curve longitudinally, as the coil is unwound to form a toroidal shape. Further, the assembly can include a plurality of elements positioned within the coil, the elements having a size and shape enabling them to be adapted to be affixed to respective parts of the assembly within the enclosure in respective positions along the length of the material in the uncoiled assembling position to constitute an internal structure for the enclosure. The plurality of elements are coiled with the coil of material for permitting access to the elements for assembling them after the material is uncoiled. The enclosure is adapted to be used in space or terrestrially, on land or underwater, and can be appropriately sealed and pressurized.

公开(公告)号：US4124985A

公开(公告)日：1978-11-14

申请号：US837112

申请日：1977-09-28

申请人： Lembit Maimets

发明人： Lembit Maimets

IPC分类号： E21D11/08 ,  E21D11/10 ,  E21D5/00 ,  E01G5/16

CPC分类号： E21D11/08 ,  E21D11/102

摘要： A collapsible concrete tunnel liner section formed from a number of arcuate segments each connected together by hinges to form a closed loop. In collapsed condition the segments are arranged in a compact stack having a cross section less in its maximum dimension than the internal diameter of the erected liner section. Typically the stack has the appearance of a figure 8, having upper and lower cavities. Air bags are located within these cavities and are expanded to expand the collapsed tunnel liner section into its erected condition. During the expansion the liner section passes through an oversized condition before assuming its final erected condition. This ensures stability for the erected liner section. After erection, grout or other filler material is inserted between the liner section and the wall of the tunnel.

摘要翻译： 一种可折叠的混凝土隧道衬砌部分，由多个弧形段形成，每个弧形段通过铰链连接在一起以形成一个闭环。 在折叠的状态下，段被布置成紧凑的堆叠，其横截面的最大尺寸小于竖立的衬垫部分的内径。 典型地，该堆叠具有图8的外观，具有上部和下部空腔。 空气袋位于这些空腔内并且被膨胀以将折叠的隧道衬里部分膨胀成其竖立状态。 在膨胀期间，衬垫部分在承担最终竖立状态之前经过过大的状态。 这确保了竖立的衬管部分的稳定性。 在竖立之后，在衬套部分和隧道的墙壁之间插入灌浆或其他填充材料。