发明名称 Apparatus for penetrating soil strata near the surface
摘要 The invention relates to a driving apparatus for penetrating soil strata near the surface, in particular for the subsequent placement of supply or disposal lines in the soil, in which a front part (2) has a pressure head (4), which is pivotable in both the peripheral and radial direction and is able to push obstacles to the side, and in which the entire front part including the pressure head (4) can be pulled back through the jacked pipes (1). The invention is especially suitable for displacing obstacles. Due to the pull-back facility, it can also preferably be used for blind holes. <IMAGE>
申请公布号 DE3513194(C1) 申请公布日期 1986.06.05
申请号 DE19853513194 申请日期 1985.04.10
申请人 HERMANN HEIN GMBH & CO KG, 2000 HAMBURG, DE 发明人 JANS, JUERGEN, DIPL.-ING., 2087 ELLERBEK, DE
分类号 E03F3/06;E21B7/04;E21B7/20;E21B10/64;E21B47/022;(IPC1-7):E21B7/26;E21B7/08;E21D9/06 主分类号 E03F3/06
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