METHOD FOR WORKED-OUT PIT RECLAMATION Russian patent published in 2007 - IPC E21C41/32 

Abstract RU 2310755 C1

FIELD: mining and processing industry, particularly to reclaim soil in agriculture and building and power engineering industries.

SUBSTANCE: method involves performing selective mining, conveying and stacking ground layer and overburden in separate strip dumps; developing pit field; filling exhausted space with building waste in several layers along with rolling of each building waste layer; leveling thereof with overburden and laying ground layer. Pit is filled with building waste up to mid-height pit level, but not under ground water level. After that building waste is rolled and covered with overburden for total pit filling. Then overburden layer is leveled. To prevent ground settlement wells are formed along filled pit surface, wherein the wells are formed up to design depth and are filled with building waste with each building waste portion compaction. Overburden layer, building waste layer, reinforced structure level formed of geo-synthetic sleeves filled with building waste milled to obtain particle dimensions of not more than 150 mm are serially laid on filled pit.

EFFECT: decreased labor inputs and costs.

1 dwg

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RU 2 310 755 C1

Authors

Boldyrev Oleg Valentinovich

Lubochkin Igor' Pavlovich

Mukhortov Vasilij Vasil'Evich

Morozov Gennadij Sergeevich

Olejnik Sergej Pavlovich

Radzhabov Nurullo Makhmudovich

Sulejmanov Gasangusejn Sultanovich

Dates

2007-11-20Published

2006-11-21Filed