TREATMENT MATERIAL FEEDING CONTROL METHOD AVAILABLE FOR PILE INSTALLATION METHOD BY INNER EXCAVATION, AND TREATMENT MATERIAL FEEDING CONTROL APPARATUS

PROBLEM TO BE SOLVED: To provide a treatment material feeding control method which is available for a pile installation method by inner excavation, in order to feed an adequate amount of treatment material into a removed earth hopper temporarily storing therein excavated muddy earth, according to the water content in the earth, to thereby eliminate inconveniences of excessive feeding or insufficient feeding of the treatment material, and to provide a treatment material feeding apparatus. SOLUTION: The treatment material feeding method available for the pile installation method by inner excavation, is carried out by temporarily storing the excavated muddy earth in the removed earth hopper, and feeding the treatment material for consolidating the excavated muddy earth into the removed earth hopper or in an adequate stage before the hopper. According to the method, the amount, the weight, and the water content of the excavated muddy earth charged in the removed earth shopper in a unit time are detected, and based on the detected data, the treatment material in an amount necessary for consolidating the excavated muddy earth in the excavated earth hopper, is fed into the hopper. COPYRIGHT: (C)2007,JPO&INPIT