-
Using preact grouting to strengthen and improve strata, the safe excavation in the loose stratum with silty sand was achieved.
采用超前注浆加固改良地层,实现了在粉细砂松散地层的安全开挖;
提前
Using preact grouting to strengthen and improve strata, the safe excavation in the loose stratum with silty sand was achieved.
采用超前注浆加固改良地层,实现了在粉细砂松散地层的安全开挖;