CORE SAMPLING BORING SYSTEM AND CORE SAMPLING BORING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a core sampling boring method superior in deoxidation efficiency more than a conventional oxygen free water generating system, and including inert gas of the optional mixing ratio in response to a sampling-boring advancing condition.;SOLUTION: This core sampling boring system has a suspended bubble water generator 100 for generating suspended bubble water of an oxygen free state, and an excavation core sampling device for excavating a core by using the bubble water generated by the bubble water generator 100. The suspended bubble water generator 100 has a first gas-liquid mixer 108 for generating the suspended bubble water by mixing the inert gas with water, a gas-liquid separator 112 for generating oxygen free water by separating gas from the suspended bubble water generated by the first gas-liquid mixer 108, and a second gas-liquid mixer 126 for generating the suspended bubble water by mixing the inert gas with the oxygen free water generated by the gas-liquid separator 112.;COPYRIGHT: (C)2006,JPO&NCIPI