| 摘要 |
PROBLEM TO BE SOLVED: To provide a compaction grouting construction method for securely forming non-fluid mortar in the ground by smooth feed under pressure without requiring special large-sized machine facilities by carrying it as fluid mortar similarly to that in general ground grouting construction methods till the non- fluid mortar is pressure-fed into the ground. SOLUTION: In this compaction grouting construction method, A-liquid 1 comprising fluid mortar mainly comprising hardening material and B-liquid 3 comprising water containing gel substance are separately generated, and the A-liquid 1 and the B-liquid 3 separately fed under pressure are combined and mixed around an injection port to be pressure-fed into the ground. Concretely, the hardening material as the main component of the A-liquid is composed of cement, cement-slag, or slag-lime. The water containing gel substance for composing the B-liquid is composed of water glass or aluminum salt.
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