DRAINAGE ARRANGEMENT FOR UNDERGROUND WATER DUCT

摘要

FIELD OF THE INVENTION The invention relates to hydraulic construction, in particular to the construction of hydraulic tunnels built in aquifers. The purpose of the invention is to reduce costs and increase reliability. The tubular collectors 7, which are embellished inside the lining 8, are provided with opposite nozzles 4 opposite radial drainage wells. The nozzles 4 are connected by flexible sleeves 5 with corresponding nozzles 6 of the drainage wells 1. The use of flexible sleeves 5 reduces the cost of manufacturing the tubular collector 7 with nozzles 6 and the fit of the combination and tight docking nozzles 4 and 6. 2 Il. (L