To provide a strength property measuring method etc. capable of accurately and efficiently measuring a strength property of various ground materials in situ.
A measurer inputs known data via an input part 25 of a computer 5 (Step 101). When the measurer lifts a rigid body 1 to a predetermined height and allows it to fall freely onto the ground material 3 (Step 102), an acceleration sensor 7 measures the acceleration of the rigid body 1 (Step 103). A control part 21 of the computer 5 performs the process etc. for reducing the noise of the measurement results stored in a memory part 22 (Step 104). Next, the control part 21 of the computer 5 obtains a deformation coefficient and a strength parameter of each measurement by a theoretical formula based on the measurement results (Step 105). To be specific, the deformation coefficient is calculated by the theoretical formula based on the impact theory by Hertz. The strength parameter is calculated by the theoretical formula based on the cavity expansion theory by Vesic.
YOSHIDA TERU
IKEJIRI KEN
UNNO TADAYUKI
GO KAYO
CENTRAL GIKEN KK
| JP2002030643A | 2002-01-31 | |||
| JP2002030643A | 2002-01-31 |
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