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[VI-647] Investigation of air content measurement method of excavated soil in shield chamber using RI measuring instrument (Part 2)

*Atsushi Takeda¹, Masafumi Tomita², Takeharu Kuwata³ (1. OBAYASHI CORPORATION, 2. TACHIBANA MATERIAL CORPORATION, 3. SOIL AND ROCK ENGINEERING CORPORATION)

Keywords:pressurization conditions, chamber, air volume, RI measurement, gamma ray density meter, neutron moisture meter