Using preact grouting to strengthen and improve strata, the safe excavation in the loose stratum with silty sand was achieved.
采用
注浆加固改良地层，实现了在粉细砂松
地层的安全开挖；
,
(
动)量,提修正量Using preact grouting to strengthen and improve strata, the safe excavation in the loose stratum with silty sand was achieved.
采用注浆加固改良地层，实现了在粉细砂松地层的安全开挖；
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