FIELD: mining.
SUBSTANCE: sinking platform comprises three block platforms connected by props, bin for concrete and bucket funnels. Medium block platform of sinking platform is a movable structure equipped with sliding mounting platform. Two blocks and tackles are suspended from top platform, one to displace tubing over platform periphery and another one to displace in radial direction. Bucket opening of the second block platform is furnished with coverage.
EFFECT: possibility to build up the tubing column, cementing of space between concrete lining and tubing.
4 dwg
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