山西建筑
山西建築
산서건축
SHANXI ARCHITECTURE
2012年
6期
178-179
,共2页
超深深井%光面爆破%喷锚初期支护%钢筋混凝土护壁
超深深井%光麵爆破%噴錨初期支護%鋼觔混凝土護壁
초심심정%광면폭파%분묘초기지호%강근혼응토호벽
ultra-deep well construction%blasting construction%ejector anchor primary support%reinforced concrete wall protection
结合贵州省惠水至兴仁高速公路八标段老鹰岩大桥超深深井施工实例,介绍了高速公路桥梁超深深井施工技术,上部碎石土、砾砂层采用人工手持风镐或十字镐从上到下逐层挖掘,下部强风化、中风化灰岩采用全断面光面爆破开挖,桅杆式电动卷扬机提碴,喷锚初期支护及钢筋混凝土护壁跟进,安全、优质、高效地完成了全部超深深井施工。
結閤貴州省惠水至興仁高速公路八標段老鷹巖大橋超深深井施工實例,介紹瞭高速公路橋樑超深深井施工技術,上部碎石土、礫砂層採用人工手持風鎬或十字鎬從上到下逐層挖掘,下部彊風化、中風化灰巖採用全斷麵光麵爆破開挖,桅桿式電動捲颺機提碴,噴錨初期支護及鋼觔混凝土護壁跟進,安全、優質、高效地完成瞭全部超深深井施工。
결합귀주성혜수지흥인고속공로팔표단로응암대교초심심정시공실례,개소료고속공로교량초심심정시공기술,상부쇄석토、력사층채용인공수지풍호혹십자호종상도하축층알굴,하부강풍화、중풍화회암채용전단면광면폭파개알,외간식전동권양궤제사,분묘초기지호급강근혼응토호벽근진,안전、우질、고효지완성료전부초심심정시공。
Combining with the ultra-deep well construction of Laoyingyan Bridge of the eighth section of Huishui-Xingren expressway in Guizhou,the paper introduces the ultra-deep well construction technique of expressways bridge,adopts the manual hand-held pick or pickaxe for the upper gravel soil and gravel layer to excavate from the upper to lower layers,the full section smooth blasting technique to excavate in lower strong weathering and medium weathering limestone,the mast electric hoister to extract ballast,the ejector anchor primary support and the reinforced concrete wall protection,so it can fully complete the ultra-well construction with safety,excellence and efficiency.
