PURIFICATION METHOD OF PORT HYDRAULIC STRUCTURE GROUND FROM OIL PRODUCTS

摘要

This invention is related to the ensuring of required level of environmental protection, that is to the purification methods of port hydraulic structure ground from petroleum products which get into ground mass as a result of pipeline leakage and of local overflows during the loading of ships. Technical results of the invention are increasing effectiveness of port hydraulic structure ground mass purification from petroleum products and preventing of port water area pollution with petroleum products. The above mentioned results are achieved in a way that port hydraulic structure, which includes a sheet piling wall, ground mass is purified from petroleum products by collecting and draining them away by means of vertical holes equipped with pumps. Vertical holes are located at least in cordon zone of hydraulic structures in rows with distances between them being equal to 17-26 diameters of vertical holes. Direct steam is supplied to above named zone through drainage-steam needles which are installed horizontally or inclined under the water layer level through holes in the sheet piling wall of hydraulic structure, using a chamber hermetically fixed to the sheet piling wall.