公开(公告)号：US4457647A

公开(公告)日：1984-07-03

申请号：US436787

申请日：1982-10-26

Applicant: Don L. Dusette ,  Charles L. Buchert

Inventor： Don L. Dusette ,  Charles L. Buchert

IPC: F16L55/28 ,  F16L1/00 ,  F16L55/18

CPC classification number: F16L55/28

Abstract: Re-rounding generally horizontally installed, covered, below-ground flexible conduits with eccentrically deflected upper walls, correcting over-belling, and obtaining primary compaction of soil in the vicinity of the conduits. A casing assembly has a central cylindrical tubular gauging portion nearly filling the conduit diameter, a tapered forward nose portion welded thereto and an off-center smaller-diameter cylindrical tubular rear portion welded thereto and providing continuity along the bottom of said casing assembly but recessed at the top and sides. An air-jet-driven ball-type vibrator is rigidly secured to the bottom of the rear portion, and is actuated by air through an inlet tangentially to the vibrator. This assembly is drawn slowly through the pipe at a substantially constant pull force no greater than 1500 pounds, and preferably no faster than 1/2 foot per second, and the bottom wall of the rear portion is vibrated, when desired, in a substantially vertical plane, so as to compact the soil below the pipe and to each side near the bottom while also strengthening the soil arch above the pipe. In some uses water is flowed downstream around and past the apparatus during this time.

Abstract translation: 通常水平安装，覆盖的地下柔性管道与偏心的上部墙壁重新整修，纠正过钟罩，并获得导管附近土壤的初步压实。 壳体组件具有几乎填充导管直径的中心圆柱形管状测量部分，焊接在其上的锥形前鼻部分和焊接到其上的偏心较小直径的圆柱形管状后部部分，并且沿着所述壳体组件的底部提供连续性，但是凹进 顶部和侧面。 喷气驱动的球型振动器刚性地固定在后部的底部，并且由空气通过与振动器相切的入口致动。 该组件以不大于1500磅，优选不超过1/2英尺/秒的基本上恒定的拉力缓慢地穿过管子，并且当需要时，后部的底壁振动，基本垂直 平面，以便压实管道下方的土壤和靠近底部的每一侧，同时还加强管道上方的土拱。 在某些情况下，在此期间，水流在设备的下游。