SEMI-SHIELD EXCAVATING DEVICE AND A TUNNEL EXCAVATION METHOD, USING A COMPLEX MIDDLE PRESSURE PIPE

摘要

PURPOSE: A semi-shield excavating device and a tunnel excavation method are provided to prevent construction delay by using a complex middle pressure pipe.;CONSTITUTION: A semi-shield excavating device using a complex middle pressure pipe comprises an excavator, a propulsion pipe(40), a complex middle pressure pipe(10), and a pressure jack. The propulsion pipes are connected to the rear end of the excavator. The complex middle pressure pipe comprises an S-shaped middle pressure pipe and a T-shaped complex middle pressure pipe. The S-shaped complex middle pressure pipe comprises a rubber ring(16) and a steel material pressure plate(15), and a complex pressure jack(11).;COPYRIGHT KIPO 2010