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...Web of conferences matec doi matecconf c ownedbytheauthors published by edp sciences mechanism research on the improvement bearing capacity single pile base post grouting technique and estimation feng zhao school construction engineering xi an university science technology shaanxi china institute coal group corp abstract slurry wall bored has some defects can effi ciently make up these greatly improve based its process analysis this paper carries out a detailed about spherical expansion use as well method which certain refer ence value for theoretical technical application keywords action calculation introduction been widely used in eu rope recent years such is to reduce especially large diameter sedimentation at s high rise build effect verified lot ings bridge yellow river projects development ii donghai runyang sutong mature currently there are many hangzhou bay so kinds devices principle control reasonable construc tion success rate influence factors ca engineer pacity ing industri...