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Zhang BoliAdvance small conduit in tunnel constructionIt is suggested that you should start from the source to reduce mechanical accidents: edit:0Times | Browse:98Times Entry creator:965HP113924865 Creation time:04-16 01:08; label: Zhang BoliAdvance small conduit in tunnel construction; Summary:The stability of the grouting pipe is one of the important factors to control the stability of the whole foundation pit.[Read the full text]