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Application filed by Ленинградский горный институт им.Г.В.ПлехановаfiledCriticalЛенинградский горный институт им.Г.В.Плеханова
Priority to SU4694344/33ApriorityCriticalpatent/SU1665736A1/en
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Production Of Liquid Hydrocarbon Mixture For Refining Petroleum
(AREA)
Abstract
FIELD: drainage of opencasts, underground mine workings, particularly, protection of mineral deposits from water flooding. SUBSTANCE: method for draining of pipe- shaped mineral deposits includes gathering of underground water and their direction to pit formed on the surface of permafrost grounds. Pit depth is 10-20 m and its distance from the mineral deposit is determined by the relation given in the invention description. EFFECT: reduced expenditures and contamination of environment in the regions of permafrost grounds with highly mineralized water.
SU4694344/33A1989-05-221989-05-22Method for draining of pipe-shaped mineral deposit
SU1665736A1
(en)
Characteristics and Methods of Groundwater Environmental Impact Assessment in Mining Areas of Guizhou Province: A Case Study of Zhijin Area of Zhina Mining Area.
DEVICE FOR REALIZING A SINKING OF CONCRETE CYLIND RIQUE CONCRETE ON SITE, WHEN GROUNDING UNDERGROUND STRUCTURES, IN PARTICULAR USING THE METHOD OF GROUNDING WITH A SHIELD OR A SHIELD KNIFE