Application of Reinforced Earth Principles in the Construction of Subhas Phatak Rob Approach at Bhopal
Authors:-Abhishek Tiwari, Assistant Professor Santosh Kharole
Abstract- Shubhas Phatak (SP) ROB crossing has been built in a very busy route of new Bhopal urban area compared with limited working space due to existing railway tracks, roads and builtup area on the road sides. At SP there was level crossing of Central Railway ( RKP station to Bhopal section and the anterior road from AIIMS to BHOPAL railway station. This artery has peak traffic during the business hours. Closers of the gate while passing the trains at SP traffic stagnation were most frequent thus it was a serious public concern. Due to construction of ROB and connecting approaches the railway and road traffic is now separated and channelized over the natural routes. Due to space constraints reinforced earth walls have been used in place of reinforced construction or gravity abutments and returns of ROB. In the old existing 2 (two) lane road now 4(four) lanes have been planned in the limited space of 10.89 m width. Reinforced earth filling as well as reinforced soil (RS) walls and back fills have been used. This work has been relatively simple fast in construction and economic in comparison to a concrete construction work.The reinforced earth has been made by a composite material formed by the friction between the earth and reinforcement. The embankment is performing satisfactorily to pass the vehicular traffic. In this study; the principles and method of reinforcement soil construction has been described.
