Acquire normal position shearing mechanism of rock soil strength parameter

The utility model discloses an acquire normal position shearing mechanism of rock soil strength parameter and installation method, its characterized in that: be that the circular shape is fitted with a contraceptive ring (4), place seam lining tile (5) between zhonghuan (3) and runner band (2) fit with a contraceptive ring (4) and side guide rail (11) is installed to the both sides of runner band (2) the upper end of fit with a contraceptive ring (4) install the ring and go up bolster (6) the ring on install bulb (10) on bolster (6) bulb (10) install vertical jack (7) on vertical jack (7) top install trabecula (9), the level to jack (8) with pass the supporting installation of power support (1), it is easy eccentric that it has overcome the single shearing ring atress among the prior art, and the shear surface is close to to the thrust position during shearing, and the shearing ring atress is uneven easily to take place decentered shortcoming, have can dismantle, work efficiency is higher and the advantage of