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1. 发明授权

US5484232A Method for injecting lubricant and filler in the pipe-jacking method 失效
标题翻译：在顶管方法中注入润滑剂和填料的方法
公开(公告)号：US5484232A
公开(公告)日：1996-01-16
申请号：US196443
申请日：1994-02-15
申请人： Mitsutoshi Hayashi , Akitaka Fujita , Shingo Nagashina , Minoru Kurashina , Makoto Kajiyama , Hideki Uno
发明人： Mitsutoshi Hayashi , Akitaka Fujita , Shingo Nagashina , Minoru Kurashina , Makoto Kajiyama , Hideki Uno
IPC分类号： E21B7/20 , E21B21/12 , F16L1/00
CPC分类号： E21B21/12 , E21B7/20
摘要： When laying a conduit comprised of double-wall pipes A, each of which comprises inner pipe 1 and outer pipe 2, the smooth propulsion of double-wall pipes is possible by injecting lubricant into a space between the outside of double-wall pipes and the ground on a scheduled line along which conduit B to be laid is divided into section, each having a given length based upon the distance over which the effect of the lubricant can be maintained. Lubricant is injected from the double-wall pipes which is to be positioned at the heads in the respective sections 1 to n of supply pipes 3 which are provided between inner pipe 1 and outer pipe 2 of double-wall pipe A. Supply pipes of double-wall pipe A which has been propelled are connected with supply pipes of a new double-wall pipe, wherein the number of supply pipes connected with each other is determined for the respective sections. Lubricant is supplied from the upstream side and from the downstream side of the propelling direction to double-wall pipes. After conduit B has been laid, back-filling material as a filler is supplied to supply pipes 3 so that a space formed between the outside of double-wall pipes 23 and the ground is filled with filler. Sheath pipes 23 are provided between inner pipes 1 and outer pipes 2. After conduit B has been laid, back-filling material, as inside-filling material, is supplied to sheath pipes 23 so that a space between the outside of double-wall pipes and the ground is filled with inside-filling material.
摘要翻译：当铺设由双壁管A构成的导管时，其中每个都包括内管1和外管2，双壁管的平滑推进可以通过将润滑剂注入双壁管的外侧和将要铺设的管道B沿着预定的管线分割成截面，每个部分具有基于能够维持润滑剂的作用的距离的给定长度。润滑剂从位于双壁管A的内管1和外管2之间的供给管3的各部分1至n中的头部的双壁管注入。供给管为双已经推进的墙壁管A与新的双壁管的供应管连接，其中为相应部分确定彼此连接的供应管的数量。润滑剂从推进方向的上游侧和下游侧供应到双壁管道。在导管B铺设之后，作为填料的填充材料被供应到供应管3，使得在双壁管23的外部和地面之间形成的空间填充有填充物。护套管23设置在内管1和外管2之间。在布置导管B之后，作为内填充材料的填充材料被供应到护套管23，使得双壁管的外侧地面填充有内部填充材料。

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