SETTLING RING FOR WATERPROOF SHEETS TO BE USED IN TUNNEL DRAINAGE STRUCTURES, AND DRAINAGE STRUCTURES CONTAINING THE RING AND METHOD OF DRAINAGE CONSTRUCTION USING THE RING

摘要

The present invention relates to a waterproof sheet and a U- reinforcing retaining ring used in the drainage structure of the tunnel, more particularly to a longitudinal drain ground water flowing riding waterproof sheet is provided between the lining layer and the concrete layer shotcrete flows in the tunnel and , in the longitudinal drain drainage structure of the tunnel leads to the underground water flowing into the main drain pipe and provided with a lateral drain pipe for draining, the longitudinal drain the water surrounding the lower end of the sheet and the waterproof sheet in a waterproof sheet reinforcement U- the cover directed to a retaining ring having a predetermined elasticity to use a binder in order to them. Furthermore, the present invention relates to a multiple structure, and a multiple process of a tunnel comprising a retaining ring such as U- reinforced tarpaulin. As such, according to the present invention, the covering with a waterproof sheet to a longitudinal drain oligonucleotide surround the tarpaulin reinforcement with U- resistant sheet by a binding them by means of a locking ring of the C- shape having a predetermined elasticity simplification of construction and ease of At the same time, imports to achieve a safe working environment for the operator. There is also a ground water Flowing take the wall surface of the irregular shotcrete can be prevented that the leakage between the shotcrete face and the longitudinal drain pipe is drained smoothly guided efficiently handle the prevention and drainage capabilities of the ice, using a synthetic resin harmless to the human body mold by using a retaining ring in an injection form it can solve health problems for workers.