FIELD: deformation process investigation, particularly investigation of ground deformation around well, which expands under pressure.
SUBSTANCE: device comprises sublayer of sheet vacuum rubber shaped as disk and upper layer of material to be tested located on the disc. The device also has means for sublayer loading. Sublayer is fastened with tightening hoop along perimeter of metal disc provided with central orifice and groove for fluoroplastic ring receiving. Means for sublayer loading comprises cylindrical cup, metal washer and tightening screw arranged in lower cup part. The sublayer is restrained in center between metal washer and cylindrical cup bottom with the use of tightening screw. Cylindrical cup is installed so that it may be displaced in vertical direction.
EFFECT: increased accuracy of ground behavior prediction.
2 dwg
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