| 摘要 |
PROBLEM TO BE SOLVED: To maintain the advantage of the prevention of the large shortening of a construction period, environmental pollution, a traffic hindrance or the like in the conventional filling construction method of an underground cavity while facilitating the management of work processes of the cavity filling construction method, and to further improve the stability of a ground after the execution of works. SOLUTION: In a filling method for the cavity in the ground, two or more of small-diametral holes communicated with a ground are distributed and bored near the top section of the cavity in the ground. A fluid aggregate mixture is fed in from at least one of feed-in holes containing the small-diametral holes together with a fluid medium added as required and the greater part of the cavity in the ground are filled with the aggregate mixture. The feed-in of the aggregate mixture is completed or feed-in is stopped after the run-off start of a part of the aggregate mixture from another small-diametral hole and an arrival to the fixed value of feed-in resistance of the aggregate mixture are detected, and filling having higher reliability is attained by feeding the an aggregate binding composition into the cavity in the ground.
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