The present invention relates to a CT type of locking steel pit sealing supporting device and method, CT type locking steel pit sealing supporting device comprises a steel pipe pile enclosed curtain closed and supporting structure, the supporting structure includes at least two inner purlin and inner support, the the inner purlin through the inner surface in the support close to the steel pipe pile, the steel pipe pile comprises a main pipe and tube occlusion, outer surface of the main pipe is welded to the occlusal I-beam, the steel pipe and the main pipe bite cut, and through the connection of welded steel tube surface in the main. Has the advantages of simple structure, ingenious design, sealing and supporting effect is good, can be widely applied to the excavation depth of 8 ~ 15m in soft stratum, stratum, artificial artificial reclamation reclamation and riprap formation under the conditions of sealing and supporting.
【技術(shù)實現(xiàn)步驟摘要】
【技術(shù)保護點】
１．一種ＣＴ式鎖口鋼管樁基坑止水支護裝置，包括由鋼管樁（１）圍合而成閉合的止水帷幕和支護結(jié)構(gòu)，所述支護結(jié)構(gòu)包括至少兩道內(nèi)圍檁（２）和內(nèi)支撐，所述內(nèi)圍檁通過內(nèi)支撐緊貼在鋼管樁內(nèi)表面，其特征在于：所述鋼管樁（１）包括主鋼管（１．１）和咬合鋼管（１．２），所述主鋼管（１．１）的外表面焊接有咬合工字鋼（１．４），所述咬合鋼管（１．２）與主鋼管（１．１）外切，并通過兩根連接鋼筋（１．５）焊接在主鋼管外表面，其形心與主鋼管（１．１）形心的連線與咬合工字鋼（１．４）的軸線垂直或在同一直線上，所述咬合鋼管（１．２）上開有咬合縫（１．３），所述咬合口縫（１．３）與主鋼管（１．１）與咬合鋼管（１．２）的切線平行，并遠離主鋼管（１．１），相鄰鋼管樁的咬合工字鋼（１．４）和咬合鋼管（１．２）交錯咬合形成止水帷幕。
【技術(shù)特征摘要】
【專利技術(shù)屬性】
技術(shù)研發(fā)人員：孫圣明，郭志仁，尤宏坤，涂常立，鮑凱，王瑩，張晶，何輝斌，
申請(專利權(quán))人：北京城建道橋建設(shè)集團有限公司，
類型：發(fā)明
國別省市：11
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