Design of handy cone penetration tester and its application

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  • YAMASHITA Satoshi
    Department of Civil and Environmental Engineering, Kitami Institute of Technology
  • KAWAGUCHI Takayuki
    Department of Civil and Environmental Engineering, Kitami Institute of Technology
  • OHSHIMA Hiroki
    Graduate School of Civil and Environment Engineering, Kitami Institute of Technology

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  • 小型簡易コーン貫入試験器の考案とその適用性

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In this study, a handy and simple cone penetration test device that is able to estimate easily the strength of surface of soft ground or core sample etc. was designed. To evaluate the applicability of the designed test device, a series of cone penetration test was performed with the different conditions of apex angle and penetration length of cone tip for two kinds of clay sample consolidated various overburden pressure. The results of cone penetration tests were compared with the test results of the soil hardness tester and handy vane test device those are conventionally used. It is also examined the correlation for the unconfined compression strength. As a result, the high linear relation was obtained to cone resistance and unconfined compression strength. The correlation between the each test results was also obtained. Furthermore, the similar correlation between the each test results was also obtained to the core sample retrieved from the sea-bed, as well as the correlation for the reconstituted specimens. Therefore, it is said that the shear strength of cohesive soil can be estimated by using the designed cone penetration test device.

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