| 摘要 |
PURPOSE: A length adjustment coupler of a reinforced earth retaining wall connection bar is provided adjust the length of a connection bar on the basis of the distance between the slope surface of a cutting part and a reinforced earth retaining wall. CONSTITUTION: A length adjustment coupler of a reinforced earth retaining wall connection bar comprises a body(10), a fixing ring(20), a control ring(40), a fixing nut(30), and a control nut(50). The body comprises a through-hole(13) in order to insert a soil nail(1) and a connection bar(2). The fixing ring is fixed to the soil nail which is inserted into the through-hole of a first body(11) for preventing the escape of the soil nail. The fixing ring is fixed to the connection bar which is inserted into the through-hole of a second body(12) for horizontally moving the connection bar. The fixing nut comprises a coupling hole(31) for joining to the soil nail and a female screw thread for joining to the screw tread of the first body. The control nut is fixed to one end of the second body and is rotated on the outer circumference of the control ring. |
