PLACEMENT BY TURNING OF BRANCH LINE PLATE OF STAY ANCHOR

摘要

PURPOSE:To avoid the inability of a branch line plate to rotate by the resistance of huge soil for raising the efficiency of placement work for the branch line plate for stay anchor by a method in which the branch line plate supported by a resistance plate is divided into two sections and then orderly risen vertically on the resistance plate. CONSTITUTION:A trench is excavated on the ground surface, a resistance plate 1 is penetrated from the bottom of the trench into the ground along a curve, and an auxiliary anchor A is penetrated in the wake of the rear end of the resistance plate 1 and coupled with the rear end of the resistance plate 1 by a coupling bar 3. A branch line plate 4 rotatably supported at almost central part of the reinforcing plate 2 of the resistance plate 1 is driven with the resistance plate 1 under the ground. Since the branch line plate 4 pivotally supports an auxiliary branch line plate 11, the branch line plate 4 is risen vertically to the reinforcing plate 2 by striking the top of the auxiliary branch line plate 11 until it reaches the same straight line as the branch line plate 4. And, a stay anchor is connected to the upper ring 8 of the auxiliary branch line plate 11.