| 摘要 |
PURPOSE:To easily drive anchors for branch line by a method in which a resistance plate with divided plates is attached to a driving part in which a base plate is provided to the lower end of a support lever, the driving part is driven into the ground, and the resistance plate is expanded along the base plate by a guide pipe. CONSTITUTION:A driving bar 23 is inserted into a guide pipe 16 under the condition that a base plate 12 is vertically erected on the ground surface. The bar 23 is dropped to give an impact to a mouth metal 17, during which period the bar 23 is buried in the ground until the mark 21 coincides with the ground surface. The pipe 16 is then drawn out by the drawing fork 24 of the bar 23 until the mark 22 reaches the upper end of the support lever 11. The bar 23 is penetrated into a pit 20a, the pipe 16 is turned 45 deg. by action of the lever, and when a driving metal 18b is contacted with the lever 11, the turning of the pipe 16 is stopped. The bar 23 is drawn out, the pipe 16 is penetrated and struck, and the metal 18c is coupled with the groove 15b. The resistance plate B is then lowered and penetrated, and the divided plates 13a and 13b are uncoupled and penetrated into soil while opening to both sides along the expanded guide edge 12a. When the mark 21 is matched with the upper side of the lever 11, the driving of the anchor is ended. |
